CN104787019A - Tractor brake system - Google Patents
Tractor brake system Download PDFInfo
- Publication number
- CN104787019A CN104787019A CN201510177488.XA CN201510177488A CN104787019A CN 104787019 A CN104787019 A CN 104787019A CN 201510177488 A CN201510177488 A CN 201510177488A CN 104787019 A CN104787019 A CN 104787019A
- Authority
- CN
- China
- Prior art keywords
- brake
- vacuum booster
- vacuum
- master
- brake cylinder
- Prior art date
- Legal status (The legal status 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 status listed.)
- Pending
Links
Classifications
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- 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
- B60T1/00—Arrangements of braking elements, i.e. of those parts where braking effect occurs specially for vehicles
- B60T1/02—Arrangements of braking elements, i.e. of those parts where braking effect occurs specially for vehicles acting by retarding wheels
- B60T1/06—Arrangements of braking elements, i.e. of those parts where braking effect occurs specially for vehicles acting by retarding wheels acting otherwise than on tread, e.g. employing rim, drum, disc, or transmission or on double wheels
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- 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
- B60T1/00—Arrangements of braking elements, i.e. of those parts where braking effect occurs specially for vehicles
- B60T1/02—Arrangements of braking elements, i.e. of those parts where braking effect occurs specially for vehicles acting by retarding wheels
- B60T1/06—Arrangements of braking elements, i.e. of those parts where braking effect occurs specially for vehicles acting by retarding wheels acting otherwise than on tread, e.g. employing rim, drum, disc, or transmission or on double wheels
- B60T1/065—Arrangements of braking elements, i.e. of those parts where braking effect occurs specially for vehicles acting by retarding wheels acting otherwise than on tread, e.g. employing rim, drum, disc, or transmission or on double wheels employing disc
-
- 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
- B60T13/143—Master cylinder mechanically coupled with booster
-
- 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
- B60T13/24—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 gaseous
- B60T13/46—Vacuum systems
- B60T13/52—Vacuum systems indirect, i.e. vacuum booster units
Landscapes
- Engineering & Computer Science (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Braking Arrangements (AREA)
- Transmission Of Braking Force In Braking Systems (AREA)
Abstract
The invention discloses a tractor brake system which comprises a brake mechanism and a brake maneuvering and control mechanism. Caliper disc brakes are installed on brake discs, the brake discs are installed on a hub seat, and the hub seat is fixedly connected with a half shaft and a front and back drive axle assembly. A vacuum pump is connected with a vacuum booster through a vacuum source pipe, one end of the vacuum booster is communicated with a brake master cylinder, the other end of the vacuum booster is movably connected with a brake pedal through a pin I, and an oil pot of the brake master cylinder is connected with two oil inlets of the brake master cylinder. A first working cavity oil outlet of the brake master cylinder is connected and communicated with the caliper disc brakes installed on two rear wheel brake discs through rear braking pipes. A second working cavity oil outlet of the brake master cylinder is connected with the caliper disc brakes installed on two front wheel brake discs through front braking pipes. The tractor brake system is sensitive in response, good in braking effect and capable of improving the operation comfort of a driver and achieving respective and independent braking of two front wheels and two rear wheels.
Description
Technical field
The present invention relates to a kind of brake system of trac., specifically a kind of tractor braking system adopting hydraulic tongs disc brake mechanism.
Background technology
The brake system of most traditional trac. adopts shoe brake, and maneuvering system completely by human control, or adopts gas braking.But along with tractor work pattern and the diversified development of outfitting tool, people are to tractor brake reaction sensitivity, and braking effect performance, traveling comfort manually-operated with it is had higher requirement.
Summary of the invention
The present invention is directed to the problems referred to above, provide a kind of novel tractor braking system, this tractor braking system adopts vacuum booster auxiliary braking system, brake response can be made sensitiveer, good braking effect, and the traveling comfort that can increase driver's operation.
A kind of tractor braking system of the present invention, it comprises stop mechanism and brake operation control mechanism, described stop mechanism is made up of caliper disk brake 3, brake disc 4, hub seat 2 and the semiaxis matched and front and back driving axis 11, caliper disk brake 3 is arranged on brake disc 4, brake disc 4 is arranged on hub seat 2, and hub seat 2 is fixedly connected with semiaxis and front and back driving axis 11; Described brake operation control mechanism is made up of brake pedal 9, vacuum booster 7, master brake cylinder 14, master brake cylinder oil can 10, vacuum pump 13, front brake piping 5 and rear brake duct road 8, vacuum pump 13 is connected with vacuum booster 7 by vacuum source pipeline 17, one end of vacuum booster 7 is connected with master brake cylinder 14 and communicates, the other end is flexibly connected with brake pedal 9 by pin I15, and master brake cylinder oil can 10 and master brake cylinder 14 two oil inlets are connected; First epitrochoidal chamber oil outlet of described master brake cylinder 14 to be connected with the caliper disk brake 3 be arranged on two rear service brake dishes 4 by rear brake duct road 8 and to communicate; Second epitrochoidal chamber oil outlet of master brake cylinder 14 to be connected with the caliper disk brake 3 be arranged on two front wheel brake dishes 4 by front brake piping 5 and to communicate.
Described brake pedal 9 is flexibly connected with vacuum booster bracing frame 6 by bearing pin II16, and vacuum booster bracing frame 6 is fixed in operator's compartment, and vacuum booster 7 and master brake cylinder oil can 10 are separately fixed on vacuum booster bracing frame 6.
Described master brake cylinder is two-chamber series type master brake cylinder.
Tractor braking system of the present invention is all provided with caliper disk brake at front and back four-wheel, under the effect of vacuum booster and master brake cylinder, enables two front-wheels and two trailing wheels realize independently braking effect, considerably increases tractor braking safety.Adopt vacuum booster to carry out auxiliary braking, brake response not only can be made sensitiveer, good braking effect, and the traveling comfort that can increase driver's operation.
Accompanying drawing explanation
Fig. 1 is the facade structures schematic diagram of brake system of the present invention.
Fig. 2 is the schematic top plan view of Fig. 1.
Fig. 3 is the fundamental diagram of brake system of the present invention.
In figure: 1-wheel rim flange ring, 2-hub seat, 3-caliper disk brake, 4-brake disc, brake piping before 5-, 6-vacuum booster bracing frame, 7-vacuum booster, 8-rear brake duct road, 9-brake pedal, 10-master brake cylinder oil can, 11-front and back driving axis, 12-tractor chassis, 13-vacuum pump, 14-master brake cylinder, 15-bearing pin I, 16-bearing pin II, 17-vacuum source pipeline.
Detailed description of the invention
Below in conjunction with accompanying drawing, the invention will be further described:
Tractor braking system of the present invention comprises stop mechanism and brake operation control mechanism.Described stop mechanism comprises caliper disk brake 3, brake disc 4 and the semiaxis matched with it and front and back wheel driving axis 11.Brake operation control mechanism comprises brake pedal 9, vacuum booster 7, master brake cylinder 14 and hydraulic oil pipeline.
Two front-wheels of trac. and the hub seat 2 of two trailing wheels are separately installed with brake disc 4, each brake disc 4 is provided with caliper disk brake 3, brake disc 4 to be arranged on hub seat 2 and to be fixedly connected with semiaxis and front and back driving axis 11, hub seat 2 is fixedly connected with wheel rim flange ring 1, and is positioned at wheel rim flange ring 1.
One end of described vacuum booster 7 is connected with master brake cylinder 14 and communicates, the control cock push rod of the other end is flexibly connected with brake pedal 9 by bearing pin I15, brake pedal 9 is flexibly connected with vacuum booster bracing frame 6 by bearing pin II16, and master brake cylinder oil can 10 and master brake cylinder 14 two oil inlets are connected and communicate; Vacuum booster 7 and master brake cylinder oil can 10 are separately fixed on vacuum booster bracing frame 6; First epitrochoidal chamber oil outlet of described master brake cylinder 14 to be connected with the caliper disk brake 3 on two trailing wheels by rear brake duct road 8 and to communicate; Second epitrochoidal chamber oil outlet of master brake cylinder to be connected with the caliper disk brake 3 on two front-wheels by front brake piping 5 and to communicate.Install sliding vane vacuum pump 13 to be within the engine connected with vacuum booster 7 by vacuum source pipeline 17 and to communicate, vacuum pump 13 constantly provides vacuum source to vacuum booster 7.Front and back driving axis 11 is arranged on tractor chassis 12.
The working process of tractor braking system of the present invention is as follows:
During braking, engine operation, by belt drive generator operation, electrical generator drives sliding-vane-type vacuum pump 13 to work and produces vacuum source, provides vacuum source constantly to vacuum booster 7 by vacuum source pipeline 17.For guaranteeing that rear service brake and front wheel brake time difference are 0.1 second, adopt two-chamber series type master brake cylinder.During braking, time under brake pedal 9 is pressed down with the foot, promote the control cock pushrod movement in vacuum booster 7, make to produce thrust in vacuum booster, the push rod of vacuum booster promotes the piston movement of master brake cylinder 14, makes the first epitrochoidal chamber produce pressure, by rear brake duct road 8 pressure is transported to the piston in the caliper disk brake 3 on two trailing wheels, piston promotes friction lining and compresses brake disc 4, reaches braking effect.After 0.1 second, the pressure that the second epitrochoidal chamber produces is transported to the piston in the caliper disk brake 3 on two front-wheels by front brake piping 5, and piston promotes friction lining and compresses drg 4, reaches braking effect.When needs brake off, loosen the brake pedal 9, makes vacuum booster 7 control cock push rod return, drive master brake cylinder 14 release, piston in caliper disk brake 3 removes thrust to friction lining, makes friction lining and brake disc 4 produce gap, thus removes the braking mode of trac..
The feature that brake system of the present invention has:
1. structure of the present invention is simple, and the brake system parts adopted are general with the components and parts of automobile, is easy to buying, and trac. front-rear axle and semiaxis do not need change, and manufacturing process easily realizes, for ease of maintenaince.
2. brake system of the present invention adopts vacuum booster auxiliary braking.By the vacuum source that the vacuum pump of driven by engine electrical generator provides, utilize vacuum booster and master brake cylinder that air operated control mode-conversion is become hydraulic control mode, thus reach braking effect.This mechanism adopts vacuum booster auxiliary braking, brake response can be made sensitiveer, good braking effect, and the traveling comfort that can increase driver's operation.
3. tractor braking system of the present invention is all provided with caliper disk brake at front and back four-wheel, adopt series type master brake cylinder can improve the reliability of brake system, two front-wheels and two trailing wheels are enable to realize independently braking effect, during current brake system malfunctions, post-braking system can realize braking function separately.Otherwise when post-braking system breaks down, front brake system can realize separately braking, thus ensures the safety of trac..
Claims (3)
1. a tractor braking system, it is characterized in that, it comprises stop mechanism and brake operation control mechanism, described stop mechanism is made up of caliper disk brake (3), brake disc (4), hub seat (2) and the semiaxis matched and front and back driving axis (11), caliper disk brake (3) is arranged on brake disc (4), brake disc (4) is arranged on hub seat (2), and hub seat (2) is fixedly connected with semiaxis and front and back driving axis (11), described brake operation control mechanism is by brake pedal (9), vacuum booster (7), master brake cylinder (14), master brake cylinder oil can (10), vacuum pump (13), front brake piping (5) and rear brake duct road (8) are formed, vacuum pump (13) is connected with vacuum booster (7) by vacuum source pipeline (17), one end of vacuum booster (7) is connected with master brake cylinder (14) and communicates, the other end is flexibly connected with brake pedal (9) by pin I (15), master brake cylinder oil can (10) and master brake cylinder (14) two oil inlets are connected, first epitrochoidal chamber oil outlet of described master brake cylinder (14) is connected with the caliper disk brake (3) be arranged on two rear service brake dishes (4) by rear brake duct road (8) and communicates, second epitrochoidal chamber oil outlet of master brake cylinder (14) to be connected with the caliper disk brake (3) be arranged on two front wheel brake dishes (4) by front brake piping (5) and to communicate.
2. tractor braking system according to claim 1, it is characterized in that, described brake pedal (9) is flexibly connected with vacuum booster bracing frame (6) by bearing pin II (16), vacuum booster bracing frame (6) is fixed in operator's compartment, and vacuum booster (7) and master brake cylinder oil can (10) are separately fixed on vacuum booster bracing frame (6).
3. tractor braking system according to claim 1, it is characterized in that, described master brake cylinder (14) is two-chamber series type master brake cylinder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510177488.XA CN104787019A (en) | 2015-04-15 | 2015-04-15 | Tractor brake system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510177488.XA CN104787019A (en) | 2015-04-15 | 2015-04-15 | Tractor brake system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104787019A true CN104787019A (en) | 2015-07-22 |
Family
ID=53552337
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510177488.XA Pending CN104787019A (en) | 2015-04-15 | 2015-04-15 | Tractor brake system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104787019A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107415918A (en) * | 2017-07-17 | 2017-12-01 | 安徽工程大学 | Brakes suitable for electric car |
| CN110509907A (en) * | 2019-08-15 | 2019-11-29 | 哈尔滨北方防务装备股份有限公司 | Binodal creeper truck double-circuit braking system |
-
2015
- 2015-04-15 CN CN201510177488.XA patent/CN104787019A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107415918A (en) * | 2017-07-17 | 2017-12-01 | 安徽工程大学 | Brakes suitable for electric car |
| CN107415918B (en) * | 2017-07-17 | 2024-01-30 | 安徽工程大学 | Braking system suitable for electric vehicle |
| CN110509907A (en) * | 2019-08-15 | 2019-11-29 | 哈尔滨北方防务装备股份有限公司 | Binodal creeper truck double-circuit braking system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| EXSB | Decision made by sipo to initiate substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20150722 |
|
| WD01 | Invention patent application deemed withdrawn after publication |