WO2021077410A1 - 一种高密封集成式电控回油制动主缸总成 - Google Patents

一种高密封集成式电控回油制动主缸总成 Download PDF

Info

Publication number
WO2021077410A1
WO2021077410A1 PCT/CN2019/113319 CN2019113319W WO2021077410A1 WO 2021077410 A1 WO2021077410 A1 WO 2021077410A1 CN 2019113319 W CN2019113319 W CN 2019113319W WO 2021077410 A1 WO2021077410 A1 WO 2021077410A1
Authority
WO
WIPO (PCT)
Prior art keywords
hole
pressure cavity
liquid storage
master cylinder
high pressure
Prior art date
Application number
PCT/CN2019/113319
Other languages
English (en)
French (fr)
Inventor
陈集
樊艳军
兰小军
陈珩
Original Assignee
温州市东启汽车零部件制造有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 温州市东启汽车零部件制造有限公司 filed Critical 温州市东启汽车零部件制造有限公司
Publication of WO2021077410A1 publication Critical patent/WO2021077410A1/zh

Links

Images

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
    • B60T13/00—Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems
    • B60T13/10—Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems with fluid assistance, drive, or release
    • B60T13/12—Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems with fluid assistance, drive, or release the fluid being liquid
    • B60T13/14—Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems with fluid assistance, drive, or release the fluid being liquid using accumulators or reservoirs fed by pumps
    • B60T13/142—Systems with master cylinder
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
    • B60T13/00—Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems
    • B60T13/10—Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems with fluid assistance, drive, or release
    • B60T13/66—Electrical control in fluid-pressure brake systems
    • B60T13/68—Electrical control in fluid-pressure brake systems by electrically-controlled valves
    • B60T13/686—Electrical control in fluid-pressure brake systems by electrically-controlled valves in hydraulic systems or parts thereof

Definitions

  • the invention relates to the technical field of braking systems, in particular to a high-sealing integrated electronically controlled oil return brake master cylinder assembly.
  • the high-sealing integrated electronically controlled unloading brake master cylinder is one of the main components of the small trailer braking system, which is responsible for providing hydraulic oil (brake fluid) to the brake pipeline and the sub-cylinder.
  • the main vehicle is connected with the outer bracket of the connector, and the trailer is connected with the inner bracket of the connector.
  • the inner and outer brackets are elastically connected and can slide relatively.
  • the trailer can drive at the same speed under the traction of the main vehicle.
  • the braking system is designed to be independent of the main vehicle.
  • the high-sealing integrated electronically controlled unloading brake master cylinder is assembled in the trailer connector. When the main vehicle brakes and decelerates, the trailer acts on inertia.
  • the piston of the master cylinder is pushed forward through the push rod, the hydraulic pressure is established in the braking system, and it is transmitted to the sub-cylinder through the pipeline to push the piston of the sub-cylinder, and the trailer brake is realized under the action of the friction plate.
  • Trailer braking is passive braking.
  • the trailer does not brake; however, when the main vehicle pushes the trailer when reversing, the internal and external brackets of the connector will move relative to each other, resulting in a braking effect.
  • Reversing resistance In order to eliminate the resistance during reversing and release the trailer brake during reversing, an electronically controlled unloading device and electronically controlled shut-off valve is integrated on the master cylinder. The electronically controlled shut-off valve is normally closed when the trailer is running normally, and is opened when reversing. Unload the road to relieve the passive braking resistance.
  • the existing high-sealing integrated electronically controlled unloading brake master cylinder still has shortcomings: unreasonable structure setting, complex structure, large volume, poor sealing performance, high manufacturing cost, and brake leakage when the vehicle is bumped or vibrated Liquid, unreliable work, potential safety hazards and poor practicability.
  • the purpose of the present invention is to provide a highly sealed integrated electrical system with reasonable structure design, compact structure, small volume, low manufacturing cost, good sealing performance, stable work, reliable safety and good practicability.
  • Control oil return brake master cylinder assembly
  • a high-sealing integrated electronically controlled oil return brake master cylinder assembly including a master cylinder, a fluid storage chamber is provided in the master cylinder, and The upper end of the liquid storage chamber is provided with a liquid storage tank sealing gasket, a liquid storage cover and a liquid storage tank blocking cover.
  • the main cylinder is located at the left end of the liquid storage chamber and is provided with a first through hole.
  • the port is provided with a first steel ball;
  • the main cylinder is provided with a high-pressure chamber and a low-pressure chamber at a position below the liquid storage chamber, a compensation hole is provided between the high-pressure chamber and the liquid storage chamber, and between the low-pressure chamber and the liquid storage chamber
  • An oil inlet hole is provided, the left end of the high-pressure chamber is provided with a first high-pressure cavity hole, and a spring, a spring seat, a main cup and a cup gasket are sequentially arranged in the high-pressure chamber from left to right;
  • the spring seat is assembled with the spring
  • the main cup is sleeved on the spring seat; a piston, an auxiliary cup, a dust cover, and an elastic retaining ring for the hole are sequentially arranged in the low pressure chamber from left to right.
  • the cup gasket is installed at the left end of the piston; the hole is clamped with the inner wall surface of the low pressure chamber by an elastic retaining ring, and the dust cover is sleeved and fixed with the right end of the main cylinder.
  • the main cylinder is provided with a second high pressure cavity hole, a third high pressure cavity hole, a low pressure cavity hole, a fourth high pressure cavity hole, an oil outlet hole and a connecting hole, the first high pressure cavity hole It communicates with the second high pressure cavity hole, the second high pressure cavity hole communicates with the fourth high pressure cavity hole through the connecting hole, and the fourth high pressure cavity hole communicates with the oil outlet hole.
  • the upper left end of the master cylinder is provided with an electromagnetic control cut-off valve, when braking: the electromagnetic control cut-off valve is normally closed, the first high pressure cavity hole, the second high pressure cavity hole, and the connecting hole ,
  • the fourth high pressure cavity hole and the oil outlet hole constitute a brake passage, and the hydraulic pressure in the high pressure cavity is along the brake passage composed of the first high pressure cavity hole, the second high pressure cavity hole, the connecting hole, the fourth high pressure cavity hole and the oil outlet hole.
  • the solenoid valve controls the shut-off valve to open, and the high-pressure oil passes through the oil outlet, the fourth high-pressure cavity, the connection hole, the oil return channel, and returns to the liquid storage chamber, and when the brake is released
  • the piston retreats to the initial state, and the hydraulic pressure of the high pressure chamber flows back to the liquid storage chamber through the compensation hole.
  • the present invention is further provided as follows: the third high pressure cavity hole communicates with the low pressure cavity hole; the low pressure cavity hole communicates with the first through hole; the first through hole communicates with the liquid storage cavity, and the connecting hole, The third high pressure cavity hole, the low pressure cavity hole and the first through hole constitute an unloading channel.
  • an O-shaped sealing ring is provided at the connection between the electromagnetic control cut-off valve and the main cylinder, the electromagnetic control cut-off valve includes a valve body and a valve core, and the valve body and the main cylinder are fixed by a threaded connection,
  • the valve core is installed in the valve body, and the valve core moves up and down to open or close the electromagnetic control cut-off valve;
  • the valve core includes a rubber plane, and the main cylinder is located at the upper port position of the third high pressure cavity. Seal the protrusions.
  • the present invention is further provided as follows: the main cylinder is provided with an annular groove at the edge of the upper port of the liquid storage chamber, and the lower end of the liquid storage tank gasket is integrally provided with an annular flange, and the annular flange and The annular groove is sealed to fit.
  • the height of the annular flange is greater than the depth of the annular groove, and the annular flange and the bottom of the annular groove form a first sealing surface, and the lower end surface of the sealing gasket of the liquid storage tank and the main cylinder A second sealing surface is formed between the bodies.
  • the present invention is further provided that: the liquid storage cover and the sealing gasket of the liquid storage tank are connected and fixed with the main cylinder body by screws.
  • the present invention is further provided as follows: a second steel ball is provided at the left end of the low pressure cavity hole, and the second steel ball is connected to the left end of the low pressure cavity hole by composite riveting, and the first steel ball is connected to the first through hole. The left end is connected by composite riveting.
  • the present invention is further provided that: the electromagnetic control cut-off valve is connected with the connecting hole through a thread, and the connection of the electromagnetic control cut-off valve is sealed by an O-shaped sealing ring.
  • the advantages of the present invention are: compared with the prior art, the structure of the present invention is more reasonable, and the inertia of the trailer is used to push the piston in the main cylinder when the main vehicle is braking so that the main cylinder builds up hydraulic pressure, which is transmitted to the sub-cylinder through the oil outlet.
  • the trailer brake is realized, and the brake is automatically released after the vehicle starts; when the vehicle does not need to be braked in reversing or other working conditions, the electromagnetic control shut-off valve is opened by manipulation to make the unloading channel unblocked, and the hydraulic pressure established in the high-pressure chamber flows back through the unloading channel To the liquid storage cavity; the two sealing design of the liquid storage tank gasket and the screw anti-loosening protection can overcome the aging of the rubber parts to ensure that the liquid storage cavity is sealed reliably, and the brake fluid will not leak when the vehicle is bumped or vibrated;
  • the first steel ball and the second steel ball are fixed by composite riveting to ensure that the steel ball will not loosen or fall off when the vehicle is bumped or vibrated, and the seal is reliable; the rubber plane of the valve core and the sealing protrusion are in tightly sealed contact in the normally closed state. After long-term use, the sealing protrusion is pressed into the rubber, and the sealing is reliable.
  • the present invention is composed of a first high-pressure cavity hole, a second high-pressure cavity hole, a connecting hole, a fourth high-pressure cavity hole, and an oil outlet hole, and the brake channel is composed of the connecting hole, the third high-pressure cavity hole, the low-pressure cavity hole and the first communication hole.
  • the unloading passages formed by holes are all integrated on the main cylinder body, with tiny design and compact structure, omitting external passages and joint parts, saving cost, reducing speed and reducing sealing links, and improving product reliability.
  • the brake release of the master cylinder is usually only the natural release of the brake return, which is of great significance in releasing the brake hydraulic unloading during the process.
  • the ability to manipulate the electromagnetic control shutoff valve not only solves the problem of reversing and braking of the trailer, but also provides a solution for the vehicle to release the brake in an emergency.
  • the structure design is reasonable, the structure is compact, the volume is small, the manufacturing cost is low, the sealing performance is good, the work is stable, the safety is reliable, and the practicability is good.
  • Figure 1 is a schematic structural diagram of an embodiment of the present invention
  • Figure 2 is a schematic top view of an embodiment of the present invention.
  • Fig. 3 is a schematic cross-sectional view of A-A in Fig. 1;
  • Fig. 4 is an enlarged schematic diagram of part I in Fig. 1;
  • Fig. 5 is a schematic diagram of the structure of the second steel ball joint in the embodiment of the present invention.
  • Fig. 6 is an enlarged schematic diagram of part II in Fig. 3.
  • the present invention discloses a high-sealing integrated electronic control oil return brake master cylinder assembly, including a master cylinder block 1, the master cylinder
  • the body 1 is provided with a liquid storage chamber 11, the upper end of the liquid storage chamber 11 is provided with a liquid storage tank sealing gasket 2, a liquid storage cover 3 and a liquid storage tank blocking cover 4, and the main cylinder body 1 is located in the liquid storage chamber.
  • the main cylinder 1 is located below the liquid storage chamber 11 is provided with a high pressure chamber 13 and a low pressure chamber Cavity 14, a compensation hole 15 is provided between the high pressure chamber 13 and the liquid storage chamber 11, an oil inlet 16 is provided between the low pressure chamber 14 and the liquid storage chamber 11, and a first high pressure chamber is provided at the left end of the high pressure chamber 13
  • a spring 6, a spring seat 7, a main cup 8 and a cup washer 9 are sequentially arranged in the high pressure chamber 13 from left to right; the spring seat 7 and the spring 6 are assembled into an integral structure, and the main cup 8 is sleeved on the spring seat 7;
  • the low-pressure chamber 14 is provided with a piston 10, an auxiliary cup 17, a dust cover 18, and an elastic retaining ring 19 for holes, from left to right, and the auxiliary cup sleeve 17 is provided On the piston 10, the
  • the main cylinder 1 is provided with a second high pressure cavity hole 132, a third high pressure cavity hole 133, a low pressure cavity hole 134, a fourth high pressure cavity hole 135, an oil outlet hole 136 and a connecting hole 137.
  • the first high pressure cavity hole 131 and the second high pressure cavity hole 132 communicate with each other, the second high pressure cavity hole 132 communicates with the fourth high pressure cavity hole 135 through the connecting hole 137, and the fourth high pressure cavity hole 135 communicates with the oil outlet hole 136.
  • the right end of the inner wall surface of the low pressure chamber 14 is provided with a retaining ring limiting slot, and the hole is clamped in the retaining ring limiting slot with an elastic retaining ring 19.
  • the upper left end of the master cylinder 1 in this embodiment is provided with an electromagnetic control cut-off valve 20.
  • the electromagnetic control cut-off valve 20 When braking: the electromagnetic control cut-off valve 20 is normally closed, and the first The high pressure cavity hole 131, the second high pressure cavity hole 132, the connecting hole 137, the fourth high pressure cavity hole 135 and the oil outlet hole 136 constitute a brake passage.
  • the hydraulic pressure in the high pressure cavity 13 is flowing along the first high pressure cavity hole 131 and the second high pressure cavity
  • the brake passage composed of the hole 132, the connecting hole 137, the fourth high pressure cavity hole 135 and the oil outlet hole 136 flows into the trailer brake system pipeline; when the vehicle is reversed, the solenoid valve controls the shut-off valve 20 to open, and the high pressure oil flows through the oil outlet
  • the hole 136, the fourth high pressure cavity hole 135, the connecting hole 137, and the oil return channel 134 return to the liquid storage chamber 11.
  • the piston 10 returns to the initial state, and the hydraulic pressure of the high pressure chamber 13 flows back to the liquid storage chamber through the compensation hole 15 11.
  • the third high pressure cavity hole 133 communicates with the low pressure cavity hole 134; the low pressure cavity hole 134 communicates with the first through hole 12; the first through hole 12 communicates with the liquid storage cavity 11, and the connecting holes 137,
  • the third high pressure cavity hole 133, the low pressure cavity hole 134 and the first through hole 12 constitute an unloading passage.
  • the electromagnetic control cut-off valve 20 includes a valve body 201 and a valve core 202.
  • the valve block 201 and the main cylinder block 1 are fixed by a threaded connection.
  • the valve core 202 is installed in the valve body 201, and the valve core 202 moves up and down to open or close the electromagnetically controlled shut-off valve 20; the valve core 202 includes a rubber plane 2021, and the main cylinder 1 is located at the third
  • the upper port position of the high pressure cavity hole 133 is provided with a sealing protrusion 110.
  • the rubber flat surface 2021 of the valve core 202 is in tightly sealed contact with the sealing protrusion 110 in the normally closed state, and the sealing protrusion 110 is pressed into the rubber flat surface 2021.
  • the sealing protrusion 110 is shown in Fig. 6, on the sealing protrusion 110
  • cone surface 1101 and cone surface 1102 Rubber plane 2021, cone surface 1101 and cone surface 1102 which improve the order of the product and eliminate the hidden quality hazards caused by the sealing performance of the product in the later stage.
  • the main cylinder 1 is provided with an annular groove 111 at the edge of the upper port of the liquid storage chamber 11, and the lower end of the liquid storage tank gasket 2 is integrally provided with an annular flange 21.
  • the groove 111 is hermetically fitted.
  • the height of the annular flange 21 is greater than the depth of the annular groove 111, and the annular flange 21 and the bottom of the annular groove 111 form a first sealing surface 112, and the lower end surface of the liquid tank gasket 2
  • a second sealing surface 113 is formed between the main cylinder 1 and the main cylinder 1.
  • the liquid storage cover 3 and the sealing gasket 2 of the liquid storage tank are connected and fixed with the main cylinder 1 by screws.
  • the liquid storage cover 3 and the liquid storage tank gasket 2 are tightly connected to the main cylinder 1 by four fastening screws.
  • the left end of the low pressure cavity hole 134 is provided with a second steel ball 23, the second steel ball 23 and the left end of the low pressure cavity hole 134 are connected by composite riveting, the first steel ball 5 is connected to the first through hole 12 The left end is connected by composite riveting. After the steel ball is pressed in by interference, a second riveting is performed to keep the steel ball in the riveting position, ensuring that the steel ball will not loosen or fall off when the vehicle is bumped or vibrated, and the seal is reliable.
  • the electromagnetic control cut-off valve 20 is connected with the connecting hole 137 through a thread, and the connection of the electromagnetic control cut-off valve 20 is sealed by an O-ring 22.
  • the inertia of the trailer during the braking of the main vehicle is used to push the piston in the main cylinder to establish the hydraulic pressure in the main cylinder, which is transmitted to the sub-cylinder through the oil outlet to achieve trailer braking.
  • the brake is automatically released after the vehicle starts;
  • open the electromagnetic control shut-off valve by manipulating to make the unloading channel unblocked, and the hydraulic pressure established in the high-pressure cavity flows back to the liquid storage cavity through the unloading channel; two seal designs and screws for the seal of the liquid storage tank
  • the anti-loose protection can overcome the aging of the rubber parts to ensure that the liquid storage chamber is sealed reliably, and the brake fluid will not leak when the vehicle is bumped or vibrated;
  • the first steel ball and the second steel ball are fixed by composite riveting to ensure the steel The ball will not loosen or fall off when the vehicle is bumped or vibrated, and the seal is reliable;
  • the rubber plane of the valve core and the sealing protrusion are in tightly sealed contact in the normally closed state
  • the present invention is composed of a first high-pressure cavity hole, a second high-pressure cavity hole, a connecting hole, a fourth high-pressure cavity hole, and an oil outlet hole, and the brake channel is composed of the connecting hole, the third high-pressure cavity hole, the low-pressure cavity hole and the first communication hole.
  • the unloading passages formed by holes are all integrated on the main cylinder body, with tiny design and compact structure, omitting external passages and joint parts, saving cost, reducing speed and reducing sealing links, and improving product reliability.
  • the brake release of the master cylinder is usually only the natural release of the brake return, which is of great significance in releasing the brake hydraulic unloading during the process.
  • the ability to manipulate the electromagnetic control shut-off valve not only solves the reversing and braking of the trailer, but also provides a solution to release the brake in an emergency.
  • the structure design is reasonable, the structure is compact, the volume is small, the manufacturing cost is low, the sealing performance is good, the work is stable, the safety is reliable, and the practicability is good.

Landscapes

  • Engineering & Computer Science (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Regulating Braking Force (AREA)

Abstract

一种高密封集成式电控回油制动主缸总成，包括主缸体（1），主缸体（1）内设置有一个贮液腔（11），贮液腔（11）的上端设置有贮液罐密封垫（2）、贮液盖（3）和贮液罐堵罩（4），主缸体（1）位于贮液腔（11）的左端位置设置有第一通孔（12），第一通孔（12）的左端口设置有第一钢球（5）；主缸体（1）位于贮液腔（11）下方位置设置有高压腔（13）和低压腔（14），高压腔（13）与贮液腔（11）之间设置有补偿孔（15），低压腔（14）与贮液腔（11）之间设置有进油孔（16），高压腔（13）左端设置有第一高压腔孔（131），高压腔（13）内从左至右依次设置有弹簧（6）、弹簧座（7）、主皮碗（8）和皮碗垫片（9）；低压腔（14）内从左至右依次设置有活塞（10）、副皮碗（17）、防尘罩（18）和孔用弹性挡圈（19）。本装置结构设计合理、结构紧凑、体积小、制造成本低、密封性能好、工作稳定、安全性可靠且实用性好。

Description

一种高密封集成式电控回油制动主缸总成 技术领域
本发明涉及制动系统技术领域，具体涉及一种高密封集成式电控回油制动主缸总成。
背景技术
高密封集成式电控卸荷制动主缸是小型挂车制动系统的主要部件之一，负责向制动管路和分泵提供液压油(制动液)。主车和连接器外支架连接，挂车与连接器内支架连接，内外支架弹性联接，能相对滑动，挂车在主车牵引力作用下实现同速行驶。挂车为方便拆卸，制动系统设计为和主车独立的制动系统，高密封集成式电控卸荷制动主缸装配在挂车连接器中，在主车制动减速时，挂车在惯性作用下经推杆向前推动主缸活塞前移，在制动系统中建立起液压，经管路传递至分泵推动分泵活塞，在摩擦片作用下实现挂车制动。
挂车制动是被动制动，在主车牵引下向前正常行驶时，挂车不进行制动；但是，在倒车时主车推动挂车时，连接器内外支架会发生相对移动，产生制动作用形成倒车阻力。为消除倒车时阻力解除倒车时挂车制动，在主缸上集成设计电控卸荷装置电控截止阀，挂车正常行驶时电控截止阀为常闭状态，在倒车时打开，对制动管路卸荷，解除被动产生的制动阻力。
但是，现有的高密封集成式电控卸荷制动主缸还存在不足：结构设置不合理、结构复杂、体积大、密封性能差、制造成本高、在车辆颠簸或振动时会泄漏制动液、工作不可靠、存在安全隐患和实用性差。
发明内容
针对现有技术存在的不足，本发明的目的在于提供一种结构设计合理、结构紧凑、体积小、制造成本低、密封性能好、工作稳定、安全性可靠且实用性 好的高密封集成式电控回油制动主缸总成。
为实现上述目的，本发明提供了如下技术方案：一种高密封集成式电控回油制动主缸总成，包括主缸体，所述主缸体内设置有一个贮液腔，所述贮液腔的上端设置有贮液罐密封垫、贮液盖和贮液罐堵罩，所述主缸体位于贮液腔的左端位置设置有第一通孔，所述第一通孔的左端口设置有第一钢球；所述主缸体位于贮液腔下方位置设置有高压腔和低压腔，所述高压腔与贮液腔之间设置有补偿孔，低压腔与贮液腔之间设置有进油孔，所述高压腔左端设置有第一高压腔孔，高压腔内从左至右依次设置有弹簧、弹簧座、主皮碗和皮碗垫片；所述弹簧座与弹簧装配成一体结构，所述主皮碗套设在弹簧座上；所述低压腔内从左至右依次设置有活塞、副皮碗、防尘罩和孔用弹性挡圈，所述副皮碗套设在活塞上，所述皮碗垫片安装在活塞左端；所述孔用弹性挡圈与低压腔的内壁面卡接，所述防尘罩与主缸体右端套接固定。
本发明进一步设置为：所述主缸体内设置有第二高压腔孔、第三高压腔孔、低压腔孔、第四高压腔孔、出油孔和连接孔，所述第一高压腔孔和第二高压腔孔相通，第二高压腔孔经连接孔与第四高压腔孔相通，第四高压腔孔与出油孔相通。
本发明还进一步设置为：所述主缸体的左上端设置有电磁控制截止阀，当制动时：电磁控制截止阀常闭，所述第一高压腔孔、第二高压腔孔、连接孔、第四高压腔孔和出油孔组成制动通道，高压腔内液压在沿第一高压腔孔、第二高压腔孔、连接孔、第四高压腔孔和出油孔组成的制动通道进入挂车制动系统管路；当车辆倒车时，电磁阀控制截止阀打开，高压油经出油孔、第四高压腔孔、连接孔、回油通道、回到贮液腔，解除制动时活塞回退至初始状态，高压腔液压经补偿孔回流至贮液腔。
本发明还进一步设置为：所述第三高压腔孔与低压腔孔相通；所述低压腔孔与第一通孔相通；所述第一通孔与贮液腔相通，且所述连接孔、第三高压腔孔、低压腔孔和第一通孔构成卸荷通道。
本发明还进一步设置为：所述电磁控制截止阀与主缸体连接处设置有O型密封圈，电磁控制截止阀包括阀体和阀芯，所述阀体与主缸体通过螺纹连接固定，所述阀芯安装在阀体内，且阀芯通过上下运动从而使电磁控制截止阀开启或关闭；所述阀芯包括橡胶平面，所述主缸体位于第三高压腔孔的上端口位置设置有密封凸起。
本发明还进一步设置为：所述主缸体位于贮液腔上端口边缘位置设置有一个环形凹槽，所述贮液罐密封垫的下端一体设置有一个环形凸缘，所述环形凸缘与环形凹槽密封配合。
本发明还进一步设置为：所述环形凸缘的高度大于环形凹槽的深度，且环形凸缘与环形凹槽的底部形成第一密封面，所述贮液罐密封垫的下端面与主缸体之间形成第二密封面。
本发明还进一步设置为：所述贮液盖和贮液罐密封垫与主缸体通过螺钉连接固定。
本发明还进一步设置为：所述低压腔孔的左端设置有第二钢球，所述第二钢球与低压腔孔的左端通过复合铆压连接，所述第一钢球与第一通孔的左端通过复合铆压连接。
本发明还进一步设置为：所述电磁控制截止阀与连接孔通过螺纹连接，且电磁控制截止阀连接处通过O型密封圈构成密封。
本发明的优点是：与现有技术相比，本发明结构设置更加合理，利用主车制动时挂车惯性推动主缸体内的活塞使主缸建立起液压，经出油孔传递至分泵 实现挂车制动，车辆起步后制动自动解除；在倒车或其它工况不需制动时候，通过操纵打开电磁控制截止阀，使卸荷通道畅通，高压腔内建立的液压经卸荷通道回流到贮液腔；贮液罐密封垫两处密封设计和螺钉防松保护，能克服即使橡胶件老化也能能够保证贮液腔密封可靠，在车辆颠簸、振动制动液也不会泄漏；第一钢球和第二钢球采用复合铆压固定，保证钢球在车辆颠簸、振动时不会松动、脱落，密封可靠；阀芯的橡胶平面与密封凸起在常闭状态下紧密封接触，长期使用后，密封凸起压入橡胶中，密封可靠。
本发明由第一高压腔孔、第二高压腔孔、连接孔、第四高压腔孔和出油孔组成的制动通道和由连接孔、第三高压腔孔、低压腔孔和第一通孔构成的卸荷通道全部集成在主缸体上，设计精巧、结构紧凑，省略了外接通道和接头零件，节约成本，减速少密封环节，提高了产品可靠性。
制动主缸的制动释放通常只有制动回位的自然释放，在过程中对制动液压卸荷进行释放上具有十分重要意义。能够操纵电磁控制截止阀对解决挂车倒车和制动外还提供了车辆在紧急情况下解除制动的方案。结构设计合理、结构紧凑、体积小、制造成本低、密封性能好、工作稳定、安全性可靠且实用性好。
下面结合说明书附图和具体实施例对本发明作进一步说明。
附图说明
图1为本发明实施例的结构示意图；
图2为本发明实施例的俯视示意图；
图3为图1中A-A的剖视示意图；
图4为图1中I部的放大示意图；
图5为本发明实施例第二钢球连接处的结构示意图；
图6为图3中II部的放大示意图。
具体实施方式
在本实施例的描述中，需要说明的是，如出现术语“中心”、“上”、“下”、“左”、“右”、“竖直”、“水平”、“内”、“外”、“前”、“后”等，其所指示的方位或位置关系为基于附图所示的方位或位置关系，仅是为了便于描述本发明和简化描述，而不是指示或暗示所指的装置或元件必须具有特定的方位、以特定的方位构造和操作，因此，不能理解为对本发明的限制。此外，如出现术语“第一”、“第二”、“第三”仅用于描述目的，而不能理解为指示或暗示相对重要性。
参见图1、图2、图3、图4、图5和图6，本发明公开的一种高密封集成式电控回油制动主缸总成，包括主缸体1，所述主缸体1内设置有一个贮液腔11，所述贮液腔11的上端设置有贮液罐密封垫2、贮液盖3和贮液罐堵罩4，所述主缸体1位于贮液腔11的左端位置设置有第一通孔12，所述第一通孔12的左端口设置有第一钢球5；所述主缸体1位于贮液腔11下方位置设置有高压腔13和低压腔14，所述高压腔13与贮液腔11之间设置有补偿孔15，低压腔14与贮液腔11之间设置有进油孔16，所述高压腔13左端设置有第一高压腔孔131，高压腔13内从左至右依次设置有弹簧6、弹簧座7、主皮碗8和皮碗垫片9；所述弹簧座7与弹簧6装配成一体结构，所述主皮碗8套设在弹簧座7上；所述低压腔14内从左至右依次设置有活塞10、副皮碗17、防尘罩18和孔用弹性挡圈19，所述副皮碗套17设在活塞10上，所述皮碗垫片9安装在活塞10左端；所述孔用弹性挡圈19与低压腔14的内壁面卡接，所述防尘罩18与主缸体1右端套接固定。
作为优选的，所述主缸体1内设置有第二高压腔孔132、第三高压腔孔133、低压腔孔134、第四高压腔孔135、出油孔136和连接孔137，所述第一高压腔 孔131和第二高压腔孔132相通，第二高压腔孔132经连接孔137与第四高压腔孔135相通，第四高压腔孔135与出油孔136相通。所述低压腔14的内壁面右端设置有挡圈限位卡槽，所述孔用弹性挡圈19卡接在挡圈限位卡槽内。
为使本发明结构设置更加合理，作为优选的，本实施例所述主缸体1的左上端设置有电磁控制截止阀20，当制动时：电磁控制截止阀20常闭，所述第一高压腔孔131、第二高压腔孔132、连接孔137、第四高压腔孔135和出油孔136组成制动通道，高压腔13内液压在沿第一高压腔孔131、第二高压腔孔132、连接孔137、第四高压腔孔135和出油孔136组成的制动通道流动进入挂车制动系统管路；当车辆倒车时，电磁阀控制截止阀20打开，高压油经出油孔136、第四高压腔孔135、连接孔137、回油通道134回到贮液腔11，解除制动时活塞10回退至初始状态，高压腔13液压经补偿孔15回流至贮液腔11。
所述第三高压腔孔133与低压腔孔134相通；所述低压腔孔134与第一通孔12相通；所述第一通孔12与贮液腔11相通，且所述连接孔137、第三高压腔孔133、低压腔孔134和第一通孔12构成卸荷通道。
所述电磁控制截止阀20与主缸体1连接处设置有O型密封圈22，电磁控制截止阀20包括阀体201和阀芯202，所述阀体201与主缸体1通过螺纹连接固定，所述阀芯202安装在阀体201内，且阀芯202通过上下运动从而使电磁控制截止阀20开启或关闭；所述阀芯202包括橡胶平面2021，所述主缸体1位于第三高压腔孔133的上端口位置设置有密封凸起110。阀芯202的橡胶平面2021与密封凸起110在常闭状态下紧密封接触，密封凸起110压入橡胶平面2021中，作为优选的，密封凸起110见附图6，密封凸起110上设置有锥面1101和锥面1102，橡胶平面2021、锥面1101和锥面1102这三处可靠的密封设计，提高产品奉命，杜绝了产品后期密封性引起的质量隐患。
所述主缸体1位于贮液腔11上端口边缘位置设置有一个环形凹槽111，所述贮液罐密封垫2的下端一体设置有一个环形凸缘21，所述环形凸缘21与环形凹槽111密封配合。作为优选的，所述环形凸缘21的高度大于环形凹槽111的深度，且环形凸缘21与环形凹槽111的底部形成第一密封面112，所述贮液罐密封垫2的下端面与主缸体1之间形成第二密封面113。
所述贮液盖3和贮液罐密封垫2与主缸体1通过螺钉连接固定。作为优选的，所述贮液盖3和贮液罐密封垫2与主缸体1通过4个紧固螺钉紧密连接在一起。
所述低压腔孔134的左端设置有第二钢球23，所述第二钢球23与低压腔孔134的左端通过复合铆压连接，所述第一钢球5与第一通孔12的左端通过复合铆压连接。钢球过盈压入后进行二次铆压，使钢球保持铆压位置，保证钢球在车辆颠簸、振动时不会松动、脱落，密封可靠。
所述电磁控制截止阀20与连接孔137通过螺纹连接，且电磁控制截止阀20连接处通过O型密封圈22构成密封。
实际应用时，利用主车制动时挂车惯性推动主缸体内的活塞使主缸建立起液压，经出油孔传递至分泵实现挂车制动，车辆起步后制动自动解除；在倒车或其它工况不需制动时候，通过操纵打开电磁控制截止阀，使卸荷通道畅通，高压腔内建立的液压经卸荷通道回流到贮液腔；贮液罐密封垫两处密封设计和螺钉防松保护，能克服即使橡胶件老化也能能够保证贮液腔密封可靠，在车辆颠簸、振动制动液也不会泄漏；第一钢球和第二钢球采用复合铆压固定，保证钢球在车辆颠簸、振动时不会松动、脱落，密封可靠；阀芯的橡胶平面与密封凸起在常闭状态下紧密封接触，密封凸起压入橡胶中形成双重密封，密封可靠；
本发明由第一高压腔孔、第二高压腔孔、连接孔、第四高压腔孔和出油孔 组成的制动通道和由连接孔、第三高压腔孔、低压腔孔和第一通孔构成的卸荷通道全部集成在主缸体上，设计精巧、结构紧凑，省略了外接通道和接头零件，节约成本，减速少密封环节，提高了产品可靠性。
制动主缸的制动释放通常只有制动回位的自然释放，在过程中对制动液压卸荷进行释放上具有十分重要意义。能够操纵电磁控制截止阀对解决挂车倒车和制动外还提供了在紧急情况下解除制动的方案。结构设计合理、结构紧凑、体积小、制造成本低、密封性能好、工作稳定、安全性可靠且实用性好。
上述实施例对本发明的具体描述，只用于对本发明进行进一步说明，不能理解为对本发明保护范围的限定，本领域的技术工程师根据上述发明的内容对本发明作出一些非本质的改进和调整均落入本发明的保护范围之内。

Claims (10)

  1. 一种高密封集成式电控回油制动主缸总成，包括主缸体(1)，所述主缸体(1)内设置有一个贮液腔(11)，所述贮液腔(11)的上端设置有贮液罐密封垫(2)、贮液盖(3)和贮液罐堵罩(4)，所述主缸体(1)位于贮液腔(11)的左端位置设置有第一通孔(12)，所述第一通孔(12)的左端口设置有第一钢球(5)；其特征在于：所述主缸体(1)位于贮液腔(11)下方位置设置有高压腔(13)和低压腔(14)，所述高压腔(13)与贮液腔(11)之间设置有补偿孔(15)，低压腔(14)与贮液腔(11)之间设置有进油孔(16)，所述高压腔(13)左端设置有第一高压腔孔(131)，高压腔(13)内从左至右依次设置有弹簧(6)、弹簧座(7)、主皮碗(8)和皮碗垫片(9)；所述弹簧座(7)与弹簧(6)装配成一体结构，所述主皮碗(8)套设在弹簧座(7)上；所述低压腔(14)内从左至右依次设置有活塞(10)、副皮碗(17)、防尘罩(18)和孔用弹性挡圈(19)，所述副皮碗(17)套设在活塞(10)上，所述皮碗垫片(9)安装在活塞(10)左端；所述孔用弹性挡圈(19)与低压腔(14)的内壁面卡接，所述防尘罩(18)与主缸体(1)右端套接固定。
  2. 根据权利要求1所述的一种高密封集成式电控回油制动主缸总成，其特征在于：所述主缸体(1)内设置有第二高压腔孔(132)、第三高压腔孔(133)、低压腔孔(134)、第四高压腔孔(135)、出油孔(136)和连接孔(137)，所述第一高压腔孔(131)和第二高压腔孔(132)相通，第二高压腔孔(132)经连接孔(137)与第四高压腔孔(135)相通，第四高压腔孔(135)与出油孔(136)相通。
  3. 根据权利要求2所述的一种高密封集成式电控回油制动主缸总成，其特征在于：所述主缸体(1)的左上端设置有电磁控制截止阀(20)，当制动时：电磁控制截止阀(20)常闭，所述第一高压腔孔(131)、第二高压腔孔(132)、 连接孔(137)、第四高压腔孔(135)和出油孔(136)组成制动通道，高压腔(13)内液压在沿第一高压腔孔(131)、第二高压腔孔(132)、连接孔(137)、第四高压腔孔(135)和出油孔(136)组成的制动通道流动；当车辆倒车时，电磁阀控制截止阀(20)打开，高压油经出油孔(136)、第四高压腔孔(135)、连接孔(137)、回油通道(134)回到贮液腔(11)，解除制动时活塞(10)回退至初始状态，高压腔(13)液压经补偿孔(15)回流至贮液腔(11)。
  4. 根据权利要求3所述的一种高密封集成式电控回油制动主缸总成，其特征在于：所述第三高压腔孔(133)与低压腔孔(134)相通；所述低压腔孔(134)与第一通孔(12)相通；所述第一通孔(12)与贮液腔(11)相通，且所述连接孔(137)、第三高压腔孔(133)、低压腔孔(134)和第一通孔(12)构成卸荷通道。
  5. 根据权利要求4所述的一种高密封集成式电控回油制动主缸总成，其特征在于：所述电磁控制截止阀(20)与主缸体(1)连接处设置有O型密封圈(22)，电磁控制截止阀(20)包括阀体(201)和阀芯(202)，所述阀体(201)与主缸体(1)通过螺纹连接固定，所述阀芯(202)安装在阀体(201)内，且阀芯(202)通过上下运动从而使电磁控制截止阀(20)开启或关闭；所述阀芯(202)包括橡胶平面，所述主缸体(1)位于第三高压腔孔(133)的上端口位置设置有密封凸起(110)。
  6. 根据权利要求5所述的一种高密封集成式电控回油制动主缸总成，其特征在于：所述主缸体(1)位于贮液腔(11)上端口边缘位置设置有一个环形凹槽(111)，所述贮液罐密封垫(2)的下端一体设置有一个环形凸缘(21)，所述环形凸缘(21)与环形凹槽(111)密封配合。
  7. 根据权利要求6所述的一种高密封集成式电控回油制动主缸总成，其特征在 于：所述环形凸缘(21)的高度大于环形凹槽(111)的深度，且环形凸缘(21)与环形凹槽(111)的底部形成第一密封面(112)，所述贮液罐密封垫(2)的下端面与主缸体(1)之间形成第二密封面(113)。
  8. 根据权利要求1所述的一种高密封集成式电控回油制动主缸总成，其特征在于：所述贮液盖(3)和贮液罐密封垫(2)与主缸体(1)通过螺钉连接固定。
  9. 根据权利要求1所述的一种高密封集成式电控回油制动主缸总成，其特征在于：所述低压腔孔(134)的左端设置有第二钢球(23)，所述第二钢球(23)与低压腔孔(134)的左端通过复合铆压连接，所述第一钢球(5)与第一通孔(12)的左端通过复合铆压连接。
  10. 根据权利要求5所述的一种高密封集成式电控回油制动主缸总成，其特征在于：所述电磁控制截止阀(20)与连接孔(137)通过螺纹连接，且电磁控制截止阀(20)连接处通过O型密封圈(22)构成密封。
PCT/CN2019/113319 2019-10-23 2019-10-25 一种高密封集成式电控回油制动主缸总成 WO2021077410A1 (zh)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201911009529.9 2019-10-23
CN201911009529.9A CN110588611A (zh) 2019-10-23 2019-10-23 一种高密封集成式电控回油制动主缸总成

Publications (1)

Publication Number Publication Date
WO2021077410A1 true WO2021077410A1 (zh) 2021-04-29

Family

ID=68849974

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2019/113319 WO2021077410A1 (zh) 2019-10-23 2019-10-25 一种高密封集成式电控回油制动主缸总成

Country Status (2)

Country Link
CN (1) CN110588611A (zh)
WO (1) WO2021077410A1 (zh)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN201357824Y (zh) * 2007-10-05 2009-12-09 威伯科有限公司 驻车制动调制器
CN103826887A (zh) * 2011-09-27 2014-05-28 爱信精机株式会社 悬架系统
CN109760658A (zh) * 2019-02-25 2019-05-17 南京经纬达汽车科技有限公司 一种双回路电液混合制动系统及其制动控制方法
CN109941253A (zh) * 2019-04-22 2019-06-28 南京经纬达汽车科技有限公司 一种具有失效冗余功能的双回路自主制动系统及制动方法
CN109941254A (zh) * 2019-04-22 2019-06-28 南京经纬达汽车科技有限公司 一种带电动助力的双回路电液混合制动系统及制动方法

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN201902483U (zh) * 2010-12-20 2011-07-20 吉林江城汽车制动器有限公司 汽车串列式双腔液压制动主缸总成
CN204674563U (zh) * 2015-04-22 2015-09-30 刘士强 一种安全性能高的制动总泵
CN210882078U (zh) * 2019-10-23 2020-06-30 温州市东启汽车零部件制造有限公司 一种高密封集成式电控回油制动主缸总成

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN201357824Y (zh) * 2007-10-05 2009-12-09 威伯科有限公司 驻车制动调制器
CN103826887A (zh) * 2011-09-27 2014-05-28 爱信精机株式会社 悬架系统
CN109760658A (zh) * 2019-02-25 2019-05-17 南京经纬达汽车科技有限公司 一种双回路电液混合制动系统及其制动控制方法
CN109941253A (zh) * 2019-04-22 2019-06-28 南京经纬达汽车科技有限公司 一种具有失效冗余功能的双回路自主制动系统及制动方法
CN109941254A (zh) * 2019-04-22 2019-06-28 南京经纬达汽车科技有限公司 一种带电动助力的双回路电液混合制动系统及制动方法

Also Published As

Publication number Publication date
CN110588611A (zh) 2019-12-20

Similar Documents

Publication Publication Date Title
CN102878136B (zh) 螺纹插装阀
US7066202B2 (en) Indicator-equipped flow regulating valve
WO2021077410A1 (zh) 一种高密封集成式电控回油制动主缸总成
CN210882078U (zh) 一种高密封集成式电控回油制动主缸总成
KR101832287B1 (ko) 단일 면 실린더로의 오일 흐름을 제어하는 밸브
WO2008141544A1 (fr) Soupape hermétique autocompensée à équilibrage automatique
CN201212471Y (zh) 离合器总泵总成
US2687743A (en) Pressure reducing valve with overpressure release
JPH0210746B2 (zh)
CN109764019B (zh) 基于同轴集成的具有同体补油与过载功能液压锁的多路阀
CN103449334A (zh) 一种新型多路阀
CN207360302U (zh) 一种停车制动液压阀
CN113090792A (zh) 一种调压卸荷阀
CN110715087B (zh) 一种低压断气阀
CN202252108U (zh) 常开常闭一体阀
CN113251186B (zh) 一种内部压力驱动的三位二通阀
CN2460810Y (zh) 全密封无泄漏多用阀门
CN111336267A (zh) 一种防锁死截止阀
CN216382718U (zh) 一种多路安全阀
CN209054102U (zh) 一种电磁充液阀
CN209856142U (zh) 一种自动补油气控式平衡缸锁
CN210318556U (zh) 一种便于操作的截止阀
CN219159289U (zh) 一种自卸车液压换向阀用溢流阀
FI81661C (fi) Kulventil.
CN212804437U (zh) 一种带有稳压阀的高压柱塞泵

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 19949855

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 19949855

Country of ref document: EP

Kind code of ref document: A1