重型卡車制動系統(tǒng)-中英文版 2015-10

1、0Chassis Department of C&C Trucks Co., Ltd. Research Institute 2015年年9月月 September, 2015 第一部分第一部分 概述概述 Chapter 1 Overview 第二部分第二部分 制動系統(tǒng)構(gòu)造制動系統(tǒng)構(gòu)造 Chapter 2 Brake System Construction 第三部分第三部分 制動系統(tǒng)工作原理制動系統(tǒng)工作原理 Chapter 3 Operating Principle of Brake System 第四部分第四部分 制動系統(tǒng)主要部件功用及工作原理制動系統(tǒng)主要部件功用及工作原理 Chap

2、ter 4 Functions and Operating Principle of Main Brake System Components 第五部分第五部分 制動系統(tǒng)裝配調(diào)校注意事項制動系統(tǒng)裝配調(diào)校注意事項 Chapter 5 Precaution for Assembling and Adjustment of Brake System 第六部分第六部分 制動系統(tǒng)故障及排除制動系統(tǒng)故障及排除 Chapter 6 Brake System Problems and Troubleshooting1目錄目錄 Contents1、制動系的功用：、制動系的功用：Functions of Brak

3、e System:使行駛的汽車減速或停車；使行駛的汽車減速或停車； Decelerate or stop the running vehicle;使下坡行駛的汽車車速保持穩(wěn)定；使下坡行駛的汽車車速保持穩(wěn)定； Keep the speed stable when the vehicle is driven on the downhill;使已停駛的汽車在原地（包括在斜坡上）駐留不動。使已停駛的汽車在原地（包括在斜坡上）駐留不動。 Leave the stopped vehicle in original location (including on the slope).2、制動系的類型：、制動

4、系的類型： Types of Brake System:行車制動：通過操縱制動踏板實現(xiàn)行車制動：通過操縱制動踏板實現(xiàn) Service brake: it is achieved by operating the brake pedal 駐車制動：通過操縱駐車制動手柄實現(xiàn)駐車制動：通過操縱駐車制動手柄實現(xiàn) Parking brake: it is achieved by operating the parking brake handle應(yīng)急制動：與駐車制動相結(jié)合，通過操縱駐車制動手柄實現(xiàn)應(yīng)急制動：與駐車制動相結(jié)合，通過操縱駐車制動手柄實現(xiàn) Emergency brake: Combining

5、with the parking brake, it is achieved by operating the parking brake handle輔助制動：通過操縱駕駛室內(nèi)輔助制動按鈕實現(xiàn)輔助制動：通過操縱駕駛室內(nèi)輔助制動按鈕實現(xiàn) Supplemental brake: it is achieved by operating the supplemental brake button in the cab3、制動系的組成：、制動系的組成： Components of Brake System:供能裝置：如空壓機、儲氣筒等供能裝置：如空壓機、儲氣筒等 Supply device: such

6、 as air compressor, air reservoir控制裝置：如制動踏板、手閥等控制裝置：如制動踏板、手閥等 Control device: such as brake pedal, parking brake傳能裝置：如各控制閥及管路元件等傳能裝置：如各控制閥及管路元件等 Transmission device: such as various control valves and pipe components執(zhí)行裝置：如制動器等執(zhí)行裝置：如制動器等 Execution device: such as brake2一、概述一、概述 Chapter 1 Overview3駐車手

7、閥駐車手閥+掛車手閥掛車手閥Parking Brake + Trailer Parking Brake 前盤式制動器前盤式制動器+氣室氣室Front Disc Brake + Air Chamber 掛車連接頭及管路掛車連接頭及管路Trailer Connector and Pipeline制動大管束及散管制動大管束及散管 Big Brake Pipe Bundle and Separate Pipes后后ABS電磁閥電磁閥 Rear ABS Solenoid Valve前前ABS電磁閥電磁閥Front ABS Solenoid Valve掛車閥掛車閥Trailer Valve空壓機空壓機Ai

8、r Compressor制動踏板制動踏板+腳閥腳閥Brake Pedal + Service Brake制動硬管制動硬管Brake Hard Pipe限壓閥限壓閥Relief Valve四回路四回路Four-circuit干燥器干燥器 Dryer差動閥差動閥Differential Valve繼動閥繼動閥Relay Valve后橋盤式制動器及制動氣室后橋盤式制動器及制動氣室 Rear Axle Disc Brake and Brake Chamber儲氣筒模塊儲氣筒模塊Air Reservoir Module排氣制動蝶閥排氣制動蝶閥Exhaust Brake Butterfly Valve二、

9、制動系統(tǒng)構(gòu)造二、制動系統(tǒng)構(gòu)造 Chapter 2 Brake System Construction多通接頭多通接頭Multi-way Connector前繼動閥前繼動閥Front Relay Valve儲氣筒儲氣筒Air Reservoir適配閥適配閥Adaptation Valve掛車掛車ABS電磁閥電磁閥ABS For Trailer變速箱變速箱+緩速緩速器器Transmission and Retarder儲氣筒儲氣筒Air Reservoir 聯(lián)合卡車制動系統(tǒng)整車布置簡圖聯(lián)合卡車制動系統(tǒng)整車布置簡圖 Complete Vehicle Layout of C&C Trucks

10、Brake System整車從布置上大致可分為：供能、控制和執(zhí)行元件三個部分。整車從布置上大致可分為：供能、控制和執(zhí)行元件三個部分。The complete vehicle can be roughly divided into three parts according to its arrangement: supply, control and executive components.供能元件即從空壓機至干燥器再到四回路、儲氣筒等的相關(guān)元件及管路；供能元件即從空壓機至干燥器再到四回路、儲氣筒等的相關(guān)元件及管路；Supply components contain the air comp

11、ressor, dryer, four-circuit, air reservoir and other related components and pipelines;控制元件即踏板、腳閥、手閥、繼動閥、差動閥，及連接各控制閥之間的若干管路；控制元件即踏板、腳閥、手閥、繼動閥、差動閥，及連接各控制閥之間的若干管路；Control components contain the pedal, service brake, parking brake, relay valve, differential valve and the several pipes between the contro

12、l valves;執(zhí)行元件即氣路終端制動器及相關(guān)執(zhí)行氣路。執(zhí)行元件即氣路終端制動器及相關(guān)執(zhí)行氣路。Executive components are the brakes at the end of the air circuits and the relevant executive air circuits.4執(zhí)行元件部分執(zhí)行元件部分Executive Component Part供能元件部分供能元件部分 Supply Component Part控制元件部分控制元件部分 Control Component Part 聯(lián)合卡車制動系統(tǒng)工作原理詳見下圖（以聯(lián)合卡車制動系統(tǒng)工作原理詳見下圖（以4

13、2牽引車為例）牽引車為例）1. See the following drawing for the operating principle of C&C trucks brake system (take 64 tractor for example)從圖中可以看出，整個制動氣路大致可分為：行車制動、駐車制動、輔助制動及其余輔助用氣等。下面將分別對這幾種制從圖中可以看出，整個制動氣路大致可分為：行車制動、駐車制動、輔助制動及其余輔助用氣等。下面將分別對這幾種制動方式的工作原理作以詳細介紹。動方式的工作原理作以詳細介紹。As seen from the drawing, the whol

14、e brake air circuit is roughly divided into: service brake, parking brake, supplemental brake, other auxiliary air and ect. Next, the operating principles of these braking methods will be described in detail.5三、制動系統(tǒng)工作原理三、制動系統(tǒng)工作原理 Chapter 3 Operating Principle of Brake System6a.行車制動：行車制動：Service Brak

15、e:聯(lián)合卡車行車制動采用雙回路氣壓制動系統(tǒng)。即前行車制動回路和后行車制動回路，二者彼此獨立。見下圖線條加粗聯(lián)合卡車行車制動采用雙回路氣壓制動系統(tǒng)。即前行車制動回路和后行車制動回路，二者彼此獨立。見下圖線條加粗部分，其中紅色代表前行車制動回路，綠色代表后行車制動回路。部分，其中紅色代表前行車制動回路，綠色代表后行車制動回路。 The C&C truck service brake uses the double-circuit pneumatic brake system. It includes the front service brake circuit and the rear

16、service brake circuit, which are independent. As shown by the bold lines in the drawing, the red represents the front service brake circuit, the green represents the rear service brake circuit.腳閥腳閥 Service Brake踏板踏板Pedal制動氣室制動氣室 Brake Chamber制動器制動器 Brake行車制動操縱裝置行車制動操縱裝置 Service Brake Operating Devic

17、e行車制動執(zhí)行裝置行車制動執(zhí)行裝置 Service Brake Execution Device7當(dāng)需要車輛減速或遇紅綠燈等其余路況需要臨時停車時，駕駛員踩下制動踏板，頂桿下移，推動制動總閥當(dāng)需要車輛減速或遇紅綠燈等其余路況需要臨時停車時，駕駛員踩下制動踏板，頂桿下移，推動制動總閥8的頂桿座下移的頂桿座下移，消除排氣間隙，制動總閥排氣閥門關(guān)閉，進氣閥門被打開，這時由后橋儲氣筒，消除排氣間隙，制動總閥排氣閥門關(guān)閉，進氣閥門被打開，這時由后橋儲氣筒4過來的控制氣流經(jīng)制動總閥上腔流向后過來的控制氣流經(jīng)制動總閥上腔流向后繼動閥繼動閥10的控制口，通過氣流壓力打開繼動閥進氣閥門，這時由后橋儲氣筒過來的供

18、能氣流便經(jīng)繼動閥進出氣口，到后的控制口，通過氣流壓力打開繼動閥進氣閥門，這時由后橋儲氣筒過來的供能氣流便經(jīng)繼動閥進出氣口，到后橋行車氣室橋行車氣室14，從而實現(xiàn)中后橋的行車制動；，從而實現(xiàn)中后橋的行車制動；When it is necessary to decelerate the vehicle or stop it temporarily as encountering the traffic light or other road conditions, the driver depresses the brake pedal, the push rod is moved downwar

19、d, the push rod seat of the brake valve 8 is pushed downward to eliminate the exhaust clearance, the exhaust valve of the brake valve is closed and the intake valve is opened. At this time, the controlled air flow from the rear axle air reservoir 4 passes through the upper chamber on the brake valve

20、, flowing into the control port of the rear relay valve 10, the intake valve of the relay valve is opened by the air flow pressure, then the supply air flow from the rear axle air reservoir passes through the inlet and the outlet of the relay valve, flowing into the rear axle service brake chamber 1

21、4, it achieves the service braking of the center rear axle.與此同時，由前橋儲氣筒與此同時，由前橋儲氣筒5過來的控制氣流經(jīng)制動總閥下腔流向前繼動閥過來的控制氣流經(jīng)制動總閥下腔流向前繼動閥10的控制口，通過氣流壓力打開繼動閥進氣閥門的控制口，通過氣流壓力打開繼動閥進氣閥門，這時由后橋儲氣筒過來的供能氣流便經(jīng)繼動閥進出氣口，到前橋制動氣室，這時由后橋儲氣筒過來的供能氣流便經(jīng)繼動閥進出氣口，到前橋制動氣室13，實現(xiàn)前橋行車制動。，實現(xiàn)前橋行車制動。At the same time ,the controlled air flow from t

22、he front axle air reservoir 5 passes through the lower chamber on the brake valve, flowing into the control port of the front relay valve 10, the intake valve of the relay valve is opened by the air flow pressure, then the supply air flow from the front axle air reservoir passes through the inlet an

23、d the outlet of the relay valve , flowing into the front axle brake chamber 13, achieving the service braking of the front axle.對于牽引車，由制動總閥過來的行車制動控制氣流同時流向掛車閥對于牽引車，由制動總閥過來的行車制動控制氣流同時流向掛車閥17控制口，控制掛車制動?？刂瓶冢刂茠燔囍苿?。For the tractors, the service brake controlled air flow from the brake valve flows into th

24、e control port of the trailer valve 17 to control the trailer brake.8b.駐車制動：駐車制動：Parking Brake:駐車制動用于使駐車制動用于使已停駛的汽車在原地（包括在斜坡上）駐留不動。已停駛的汽車在原地（包括在斜坡上）駐留不動。聯(lián)合卡車駐車制動采用手控閥彈簧儲能制動。見下圖聯(lián)合卡車駐車制動采用手控閥彈簧儲能制動。見下圖線條加粗部分，藍色代表主車駐車制動回路，黃色代表掛車駐車控制氣路。線條加粗部分，藍色代表主車駐車制動回路，黃色代表掛車駐車控制氣路。The parking brake is used to keep t

25、he stopped vehicle in original location (including on the slope). The C&C truck parking brake uses the energy stored in the parking brake spring to operate the brake. As shown by the bold lines in the drawing, the blue represents the main vehicle parking brake circuit, the yellow represents the

26、trailer parking control air circuit.駐車手閥駐車手閥Parking Brake 駐車制動操縱裝置駐車制動操縱裝置 Parking Brake Operating Device彈簧制動氣室彈簧制動氣室 Spring Brake Cylinder 制動器制動器 Brake駐車制動執(zhí)行裝置駐車制動執(zhí)行裝置 Parking Brake Execution Device9當(dāng)需要車輛停駐時，駕駛員拉動駐車手閥手柄當(dāng)需要車輛停駐時，駕駛員拉動駐車手閥手柄12 ，手閥進氣閥門關(guān)閉，排氣閥門打開，這時由駐車手閥到差動式繼動閥，手閥進氣閥門關(guān)閉，排氣閥門打開，這時由駐車手閥到差

27、動式繼動閥11的控制氣流便經(jīng)駐車手閥排氣口排出，施加在差動式繼動閥控制口上的氣壓解除，差動式繼動閥進氣閥門關(guān)閉，排氣閥門的控制氣流便經(jīng)駐車手閥排氣口排出，施加在差動式繼動閥控制口上的氣壓解除，差動式繼動閥進氣閥門關(guān)閉，排氣閥門打開，這時中后橋彈簧制動氣室打開，這時中后橋彈簧制動氣室14的壓縮空氣便由制動軟管流向差動式繼動閥，經(jīng)差動式繼動閥排氣口排出，彈簧釋放，的壓縮空氣便由制動軟管流向差動式繼動閥，經(jīng)差動式繼動閥排氣口排出，彈簧釋放，從而實現(xiàn)駐車制動。從而實現(xiàn)駐車制動。When it is necessary to park the vehicle, the driver pulls the

28、parking brake handle 12, the intake valve of the parking brake is closed, the exhaust valve is opened, then the controlled air flow from the parking brake to the differential relay valve 11 is discharged from the exhaust port of the parking brake, the air pressure applied to the control port of the

29、differential relay valve is released, the intake valve of the differential relay valve is closed, and the exhaust valve is opened, then the compressed air from the center rear axle spring brake chamber 14 flows to the differential relay valve through brake hoses, and is discharged from the exhaust p

30、ort of the differential relay valve, the spring is released, achieving the parking brake.對于牽引車，由駐車手閥到掛車手閥對于牽引車，由駐車手閥到掛車手閥18的控制氣流同時經(jīng)駐車手閥排氣口排出，掛車手閥排氣閥門打開，由掛車手閥到掛的控制氣流同時經(jīng)駐車手閥排氣口排出，掛車手閥排氣閥門打開，由掛車手閥到掛車閥車閥17的駐車控制口的控制氣流經(jīng)掛車手閥排氣口排出，從而控制掛車駐車制動。的駐車控制口的控制氣流經(jīng)掛車手閥排氣口排出，從而控制掛車駐車制動。For the tractors, the controlled

31、air flow from the parking brake to the trailer parking brake 18 is discharged from the exhaust port of the parking brake, the exhaust valve of the trailer parking brake is opened, and the controlled air flow from the trailer parking brake to the trailer valve 17 is discharged from the exhaust port o

32、f the trailer parking brake to control the trailer parking brake. c.輔助制動：輔助制動：Supplemental Brake:輔助制動是主要用于汽車下長坡時，持續(xù)的減速或保持車速穩(wěn)定，并減輕或解除行車制動裝置的負荷，從而提高輔助制動是主要用于汽車下長坡時，持續(xù)的減速或保持車速穩(wěn)定，并減輕或解除行車制動裝置的負荷，從而提高坡道行車安全，提高制動器使用壽命。坡道行車安全，提高制動器使用壽命。The supplemental brake is operating when the vehicle runs on a long dow

33、nhill, it reduces the speed constantly or keeps the speed stable and reduces or releases the loads on the service brake device to improve the driving safety on slopes and increase the brakes service life.聯(lián)合卡車輔助制動分為：壓縮釋放制動聯(lián)合卡車輔助制動分為：壓縮釋放制動+排氣制動排氣制動(YC6K12)、壓縮釋放制動（、壓縮釋放制動（ISME）、泄氣制動）、泄氣制動+排氣制動排氣制動(YC6

34、K10)、排氣制動（、排氣制動（YC6MK）。）。The C&C truck supplemental brake is divided into: compression release brake + exhaust brake (YC6K12), compression release brake (ISME), bleeder brake + exhaust brake (YC6K10), exhaust brake (YC6MK).10COMPRESSION RELEASE BRAKE(ENGINNE BRAKE)壓縮釋放制動器壓縮釋放制動器(發(fā)動機制動器發(fā)動機制動器)BLE

35、EDER BRAKE泄氣制動器泄氣制動器EXHAUST BRAKE排氣制動器排氣制動器Intergrated 集成式Full Cycle 全循環(huán)Fix Orifice 固定泄氣孔Bolt-On 螺栓連接式Common Rail 共軌Constant Pressure 恒壓壓縮釋放制動：壓縮釋放制動：Compression Release Brake:壓縮釋放制動是在發(fā)動機壓縮沖程上止點，打開排氣門，使高壓氣體經(jīng)排氣門排出，使得做功沖程中無能量返回活塞，壓縮釋放制動是在發(fā)動機壓縮沖程上止點，打開排氣門，使高壓氣體經(jīng)排氣門排出，使得做功沖程中無能量返回活塞，造成能量凈損失，以達到緩速目的；整個過程

36、，發(fā)動機就相當(dāng)于一吸收能量的空氣壓縮機。造成能量凈損失，以達到緩速目的；整個過程，發(fā)動機就相當(dāng)于一吸收能量的空氣壓縮機。The compression release brake opens the exhaust valve when the engine compression stroke is at the top dead center, so that the high pressure gas is discharged from the exhaust valve and no energy returns to the piston during the power stro

37、ke, resulting in the net energy loss and achieving the goal of slowing down the speed; during the whole process, the engine services as an air compressor to absorb the energy. 11Intake 進氣進氣Compression 壓縮壓縮Release 釋放釋放Expansion膨脹膨脹Exhaust排氣排氣 泄氣制動：泄氣制動： Bleeder Brake:泄氣制動是在發(fā)動機四個工作沖程中排氣門均打開，在壓縮沖程中，壓縮氣

38、體經(jīng)微小打開的排氣門排出，在膨脹泄氣制動是在發(fā)動機四個工作沖程中排氣門均打開，在壓縮沖程中，壓縮氣體經(jīng)微小打開的排氣門排出，在膨脹沖程中無能量返回活塞；同時在排氣沖程中，安裝在排氣管上的排氣蝶閥關(guān)閉，形成排氣背壓，為排氣沖程提供沖程中無能量返回活塞；同時在排氣沖程中，安裝在排氣管上的排氣蝶閥關(guān)閉，形成排氣背壓，為排氣沖程提供阻力，使發(fā)動機降速，從而實現(xiàn)整車緩速。阻力，使發(fā)動機降速，從而實現(xiàn)整車緩速。Bleeder brake opens the exhaust valve during the four engine strokes. The compressed air is dischar

39、ged from the exhaust valve that is opened slightly during the compression stroke, no energy returns to the piston during the expansion stroke; while, the exhaust butterfly valve installed on the exhaust pipe is closed in the exhaust stroke to form the exhaust back pressure and provide the resistance

40、 to the exhaust stroke, then the engine speed is reduced, achieving the goal of slowing down the complete vehicles speed.12Intake 進氣進氣Compression 壓縮壓縮Expansion膨脹膨脹Exhaust排氣排氣排氣制動：排氣制動： Exhaust Brake:排氣制動是通過關(guān)閉安裝在排氣管上的蝶形閥門，阻止發(fā)動機排氣沖程中的氣流流出，增加排氣背壓，在發(fā)動機排氣制動是通過關(guān)閉安裝在排氣管上的蝶形閥門，阻止發(fā)動機排氣沖程中的氣流流出，增加排氣背壓，在發(fā)動機排氣沖

41、程提供阻力，使發(fā)動機降速，實現(xiàn)制動。排氣沖程提供阻力，使發(fā)動機降速，實現(xiàn)制動。The exhaust brake prevents the air flow generated in the engine exhaust stroke from being discharged by closing the butterfly valve installed on the exhaust pipe, increases the exhaust back pressure, provides the resistance during the engine exhaust stroke, red

42、uces the engine speed, and achieves the braking.13 d.應(yīng)急制動：應(yīng)急制動：d.Emergency Brake:應(yīng)急制動用于主制動供能裝置出現(xiàn)壓力過低等故障時，通過應(yīng)急制動裝置實現(xiàn)汽車制動。聯(lián)合卡車應(yīng)急制動與駐應(yīng)急制動用于主制動供能裝置出現(xiàn)壓力過低等故障時，通過應(yīng)急制動裝置實現(xiàn)汽車制動。聯(lián)合卡車應(yīng)急制動與駐車制動相結(jié)合，控制及執(zhí)行裝置同駐車制動。車制動相結(jié)合，控制及執(zhí)行裝置同駐車制動。When the main brake supply device has problems such as low pressure, the emergenc

43、y brake uses the emergency brake device to operate the vehicle braking. The C&C truck combines the emergency brake with parking brake, and its control and execution device are same with the parking brake.14干燥器干燥器 Dryer空壓機空壓機Air Compressor排氣蝶閥排氣蝶閥Exhaust Butterfly Valve繼動閥繼動閥Relay Valve 差動閥差動閥Dif

44、ferential Valve 掛車閥掛車閥Trailer Valve四回路四回路Four-circuit 儲氣筒儲氣筒Air Reservoir 制動踏板制動踏板Brake Pedal盤式制動器盤式制動器 Disc Brake 制動總閥制動總閥 Brake Valve電子制動系統(tǒng)電子制動系統(tǒng)Electric Brake System掛車手閥掛車手閥Trailer Parking Brake 15四、制動系統(tǒng)主要部件功用及工作原理四、制動系統(tǒng)主要部件功用及工作原理 Chapter 4 Functions and Operating Principle of Main Brake System

45、Components駐車手閥駐車手閥Parking Brake空壓機空壓機 1. Air Compressor a.功用：空壓機作為發(fā)動機附件裝與發(fā)動機上，由發(fā)動機驅(qū)動，向制動系統(tǒng)及其它功用：空壓機作為發(fā)動機附件裝與發(fā)動機上，由發(fā)動機驅(qū)動，向制動系統(tǒng)及其它輔助用氣系統(tǒng)提供能量。輔助用氣系統(tǒng)提供能量。a. Functions: The air compressor is installed to the engine as an engine accessory. It is driven by the engine, and supplies energy to the brake syste

46、m and other auxiliary gas systems.b.分類：目前聯(lián)合卡車使用的有內(nèi)卸荷（分類：目前聯(lián)合卡車使用的有內(nèi)卸荷（ISME）和外卸荷（）和外卸荷（YC）兩種。）兩種。b. Classification: The C&C truck now uses two types: the internal unloading (ISME) and the external unloading (YC).c. 工作原理：工作原理：c. Operating Principle:空壓機具有與發(fā)動機類似的曲柄連桿機構(gòu)。空壓機具有與發(fā)動機類似的曲柄連桿機構(gòu)。The air com

47、pressor has a crank link mechanism just like that of the engine.發(fā)動機運轉(zhuǎn)時，空壓機隨之運轉(zhuǎn)。當(dāng)活塞下行時發(fā)動機運轉(zhuǎn)時，空壓機隨之運轉(zhuǎn)。當(dāng)活塞下行時，外界空氣經(jīng)進氣歧管（增壓進氣）外界空氣經(jīng)進氣歧管（增壓進氣）或空濾后（自然吸氣）被吸人氣缸；活塞上行時，缸內(nèi)空氣即被壓縮，壓力升高、或空濾后（自然吸氣）被吸人氣缸；活塞上行時，缸內(nèi)空氣即被壓縮，壓力升高、克服排氣閥彈簧的頂緊力使排氣門開啟，壓縮空氣便經(jīng)出氣克服排氣閥彈簧的頂緊力使排氣門開啟，壓縮空氣便經(jīng)出氣口流向干燥器及后續(xù)口流向干燥器及后續(xù)制動氣路，從而實現(xiàn)向制動氣路供氣制動氣路，

48、從而實現(xiàn)向制動氣路供氣。When the engine is running, the air compressor is running. When the piston is moving downward, the outside air is absorbed into the cylinder through the intake manifold (boosted air intake) or the air cleaner (natural aspiration); when the piston is moving upward, the air in the cylinder

49、 is compressed, the pressure is boosted, and the exhaust valve is opened by the jacking force used to overcome the exhaust valve spring, then the compressed air flows to the dryer and the following brake air circuits through the outlet to supply air for the brake air circuits. 162. 干燥器干燥器 2. Dryera.

50、功用：對來自空壓機的壓縮空氣進行吸附干燥，防止管路及系統(tǒng)內(nèi)其他金屬件功用：對來自空壓機的壓縮空氣進行吸附干燥，防止管路及系統(tǒng)內(nèi)其他金屬件銹蝕、橡膠件龜裂、潤滑脂分解、管路堵塞等故障，增加制動系統(tǒng)的可靠性。集銹蝕、橡膠件龜裂、潤滑脂分解、管路堵塞等故障，增加制動系統(tǒng)的可靠性。集成的調(diào)壓閥能自動調(diào)節(jié)系統(tǒng)壓力，集成的安全閥可防止氣路過壓，集成的加熱裝成的調(diào)壓閥能自動調(diào)節(jié)系統(tǒng)壓力，集成的安全閥可防止氣路過壓，集成的加熱裝置能避免總成冬季凍結(jié)失效。置能避免總成冬季凍結(jié)失效。a. Functions: Absorb and dry the compressed air from the air compr

51、essor, prevent the pipeline and other metal parts in the system from corrosion, prevent the cracked rubber parts, dissociation of the grease, the blocked pipeline and other troubles, enhance the reliability of the brake system. The integrated pressure regulating valve can adjust the system pressure

52、automatically, the integrated safety valve can prevent the overpressure in the air circuits, the integrated heating unit can prevent the assembly from the failure of frozen in winter.b.管路連接要求：管路連接要求：1口為進氣口，接制動硬管；口為進氣口，接制動硬管；21口接四回路進氣口；口接四回路進氣口；22口接再口接再生儲氣筒。對于帶切斷閥的干燥器還需從生儲氣筒。對于帶切斷閥的干燥器還需從4口引一根管子接到空壓機

53、?？谝桓茏咏拥娇諌簷C。b. Pipeline connection requirements: Port 1 is the air inlet, connected to the brake hard pipe; port 21 is connected to the air inlet of the four-circuit; port 22 is connected to the regeneration air reservoir. For the dryer with a stop valve, it is also necessary to lead out a pipe fro

54、m port 4 and connect it to the air compressor. 17c.工作原理：工作原理：Operating Principle:干燥器的工作過程分四步，形成一個循環(huán)：干燥器的工作過程分四步，形成一個循環(huán)：The operation of the dryer is divided into four steps to form a cycle:干燥空氣干燥空氣卸荷卸荷干燥劑再生干燥劑再生再次恢復(fù)干燥功能再次恢復(fù)干燥功能Dry air-unloading- desiccant regeneration -recover the dry function again

55、干燥空氣：壓縮空氣經(jīng)干燥空氣：壓縮空氣經(jīng)1口進入口進入A腔，通過干燥濾網(wǎng)腔，通過干燥濾網(wǎng)I、環(huán)形通路、環(huán)形通路K到達干燥器上部，氣流經(jīng)干燥劑到達干燥器上部，氣流經(jīng)干燥劑a時，水分被干燥劑時，水分被干燥劑a吸附并滯留在其吸附并滯留在其表面，干燥氣流經(jīng)過通道表面，干燥氣流經(jīng)過通道C后、一部分經(jīng)后、一部分經(jīng)22口流到再生儲氣筒，一部分經(jīng)單向閥流到口流到再生儲氣筒，一部分經(jīng)單向閥流到21口，再經(jīng)四回路流向整車用氣回路。口，再經(jīng)四回路流向整車用氣回路。Dry air: The compressed air flows into the chamber A through port 1, passes t

56、hrough the dry strainer I and the annular channel K and gets into the upper of the dryer. When the airflow passes through the desiccant a, the water is absorbed by the desiccant a and left on its surface, the dried airflow passes through the channel C, after that, a part of airflow gets into the reg

57、eneration air reservoir, a part of airflow gets into the port 21 through the check valve, and then flows to the complete vehicle gas circuits through the four-circuit.卸荷：干燥氣流在流向卸荷：干燥氣流在流向21口的同時，部分壓縮空氣從斜孔口的同時，部分壓縮空氣從斜孔l進入進入D腔，作用在膜片總成腔，作用在膜片總成g上，當(dāng)系統(tǒng)氣壓超過彈簧預(yù)緊力時（上，當(dāng)系統(tǒng)氣壓超過彈簧預(yù)緊力時（100020kpa），膜片），膜片g帶動閥門帶動閥門

58、n向右移動，打開閥門向右移動，打開閥門n，壓縮空氣進入，壓縮空氣進入B腔，推動活塞腔，推動活塞d 往下移動往下移動 ，打開排氣閥門，打開排氣閥門e，空壓機卸荷。，空壓機卸荷。Unloading: While the dried airflow is flowing toward the port 21, a part of the compressed air gets into the chamber D from the inclined hole and is applied to the diaphragm assembly g. When the air pressure of th

59、e system exceeds the spring preloads (100020kpa), the diaphragm g moves the valve n to the right and opens the valve n, then the compressed air gets into the chamber B, pushes the piston d to move downward, and opens the exhaust valve e, the air compressor is unloaded.干燥劑再生：在空壓機卸荷的同時，再生貯氣筒內(nèi)的壓縮空氣經(jīng)過通道

60、干燥劑再生：在空壓機卸荷的同時，再生貯氣筒內(nèi)的壓縮空氣經(jīng)過通道C、干燥劑、干燥劑a、環(huán)形通路、環(huán)形通路K、干燥濾網(wǎng)、干燥濾網(wǎng)I、通路、通路E、排氣閥門、排氣閥門e從排從排氣口排出，從而將干燥劑氣口排出，從而將干燥劑a吸附的水分通過反吹氣流排出，實現(xiàn)再生。吸附的水分通過反吹氣流排出，實現(xiàn)再生。Desiccant regeneration: While the air compressor is unloaded, the compressed air in the regeneration air reservoir is discharged from the exhaust port through the channel C, desiccant