CN112026723A - Vehicle brake auxiliary mechanism - Google Patents
Vehicle brake auxiliary mechanism Download PDFInfo
- Publication number
- CN112026723A CN112026723A CN202011071756.7A CN202011071756A CN112026723A CN 112026723 A CN112026723 A CN 112026723A CN 202011071756 A CN202011071756 A CN 202011071756A CN 112026723 A CN112026723 A CN 112026723A
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- oil
- hydraulic oil
- vehicle brake
- axle
- cylinder
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- 230000007246 mechanism Effects 0.000 title claims abstract description 71
- 230000017525 heat dissipation Effects 0.000 claims abstract description 17
- 239000003921 oil Substances 0.000 claims description 72
- 239000010720 hydraulic oil Substances 0.000 claims description 60
- 238000003860 storage Methods 0.000 claims description 17
- 238000004891 communication Methods 0.000 claims description 7
- 238000000926 separation method Methods 0.000 claims description 7
- 238000007789 sealing Methods 0.000 claims description 4
- 230000000295 complement effect Effects 0.000 claims description 3
- 230000006872 improvement Effects 0.000 description 9
- 230000000694 effects Effects 0.000 description 5
- 230000009467 reduction Effects 0.000 description 5
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 238000001125 extrusion Methods 0.000 description 2
- 230000002159 abnormal effect Effects 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000001603 reducing effect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
- 238000009827 uniform distribution Methods 0.000 description 1
Images
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
- B60T1/062—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 acting on transmission parts
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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
- B60T11/00—Transmitting braking action from initiating means to ultimate brake actuator without power assistance or drive or where such assistance or drive is irrelevant
- B60T11/10—Transmitting braking action from initiating means to ultimate brake actuator without power assistance or drive or where such assistance or drive is irrelevant transmitting by fluid means, e.g. hydraulic
- B60T11/102—Transmitting braking action from initiating means to ultimate brake actuator without power assistance or drive or where such assistance or drive is irrelevant transmitting by fluid means, e.g. hydraulic in combination with mechanical elements
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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
- B60T5/00—Vehicle modifications to facilitate cooling of brakes
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- Engineering & Computer Science (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Braking Arrangements (AREA)
Abstract
The invention discloses a vehicle brake auxiliary mechanism which is arranged on an axle, wherein a driving shaft is arranged in an axle housing of the axle, and the brake auxiliary mechanism is arranged in the axle housing and acts on the driving shaft; the brake auxiliary mechanism comprises at least one power telescopic piece, wherein the free end of the power telescopic piece acts on the driving shaft, and the friction between the power telescopic piece and the driving shaft achieves the deceleration of the driving shaft; the axle housing is externally provided with a heat dissipation mechanism, the heat dissipation mechanism can be communicated with a jacking medium of the power expansion piece to dissipate heat of the medium, and the brake auxiliary mechanism acts on a front axle or a rear axle of the vehicle. The brake auxiliary mechanism disclosed by the invention is simple in structure, assists the brake of a traditional brake pad on a wheel hub, and effectively solves the problems that the brake pad is easy to heat and not easy to radiate heat in a traditional brake mode.
Description
Technical Field
The invention belongs to the technical field of vehicle brake devices, and particularly relates to a vehicle brake auxiliary mechanism.
Background
When an automobile or a truck, particularly a truck with large loading capacity, brakes, kinetic energy of vehicle motion is converted into heat generated by friction between a brake pad and a hub in the braking process, so that the brake pad is often rapidly heated due to energy conversion when the loading capacity is large, the driving speed is high and the speed is rapidly reduced, the braking effect of the brake pad is influenced, the brake pad is seriously deformed or crushed, and particularly the brake pad is extremely easy to damage when the brake pad is actuated on a downhill road for a long time, and larger unsafe factors are generated. The existing brake auxiliary device is mostly a friction piece for increasing the vehicle and the ground, so that the deceleration effect is realized, but when the device is used, the friction piece and the ground are in hard friction, great noise is generated, the vehicle often generates great abnormal sound and shake, and particularly for a truck downhill road, the problem that the direction of the vehicle cannot be controlled is extremely easy to happen, and further an accident occurs.
Disclosure of Invention
In order to solve the problems, the invention designs the vehicle brake auxiliary mechanism which is simple in structure, assists the brake of the traditional brake pad on the wheel hub, and effectively solves the problems that the brake pad is easy to heat and not easy to radiate heat in the traditional brake mode.
In order to achieve the purpose, the invention adopts the following technical scheme: a vehicle brake auxiliary mechanism is arranged on an axle, a driving shaft is arranged in an axle housing of the axle, and the brake auxiliary mechanism is arranged in the axle housing and acts on the driving shaft; the brake auxiliary mechanism comprises at least one power telescopic piece, wherein the free end of the power telescopic piece acts on the driving shaft, and the friction between the power telescopic piece and the driving shaft achieves the deceleration of the driving shaft; the axle housing is externally provided with a heat dissipation mechanism, the heat dissipation mechanism can be communicated with a jacking medium of the power expansion piece to dissipate heat of the medium, and the brake auxiliary mechanism acts on a front axle or a rear axle of the vehicle.
As a further improvement of the vehicle brake auxiliary mechanism of the invention: the power telescopic piece is a micro hydraulic oil cylinder; the miniature hydraulic cylinders are fixed on the inner side of the axle housing, each miniature hydraulic cylinder is communicated to the main oil supply cylinder through an oil inlet pipe, and a switch control valve of the main oil supply cylinder is arranged in the cab; the heat dissipation mechanism is a fin-shaped heat dissipation sheet, and an oil pipeline can be arranged in the fin-shaped heat dissipation sheet.
As a further improvement of the vehicle brake auxiliary mechanism of the invention: the driving shaft is a straight rod with uniform radius.
As a further improvement of the vehicle brake auxiliary mechanism of the invention: the driving shaft is a camshaft, and the hydraulic oil cylinders are distributed corresponding to the cams on the camshaft.
As a further improvement of the vehicle brake auxiliary mechanism of the invention: the inner side surface of the axle housing is provided with a T-shaped slide way, the miniature hydraulic oil cylinders are arranged in the T-shaped slide way in a sliding mode, electric push rods connected with the miniature hydraulic oil cylinders are further arranged in the axle housing, and the electric push rods drive the miniature hydraulic oil cylinders to achieve the attachment and separation of the miniature hydraulic oil cylinders and the cam.
As a further improvement of the vehicle brake auxiliary mechanism of the invention: the side surface of the ring of the cam is of an arc structure, and the height of the impact surface of the cam is not more than that of the corresponding side surface; the friction surface of the friction piece at the end part of the piston rod of the miniature hydraulic oil cylinder is also of an arc-shaped structure, the other end of the piston rod is a piston piece, and a sealing ring is arranged on the side surface of the ring of the piston piece so as to realize the separation of the oil storage bin of the oil cylinder from the working bin and prevent the oil storage bin from leaking oil to the working bin.
As a further improvement of the vehicle brake auxiliary mechanism of the invention: and balls are arranged in the side faces of the rings of the cams.
As a further improvement of the vehicle brake auxiliary mechanism of the invention: and a communicating oil pipe is arranged between every two adjacent micro hydraulic oil cylinders, an electric ball valve is arranged on the communicating oil pipe, and a control switch of the electric ball valve is arranged in the cab.
As a further improvement of the vehicle brake auxiliary mechanism of the invention: the power extensible member is two miniature hydraulic cylinders which are oppositely arranged and integrally connected, oil storage bins of the two miniature hydraulic cylinders are mutually communicated through a communicating oil pipe, an electric ball valve is arranged on the communicating oil pipe, a control switch of the electric ball valve is arranged in a cab, and the diameter of the communicating oil pipe is the same as the inner diameter of the oil storage bin of the miniature hydraulic cylinder.
As a further improvement of the vehicle brake auxiliary mechanism of the invention: the bearing and the oil seal ring are sleeved on the driving shaft, and the driving shaft is connected with the two miniature hydraulic oil cylinders through the bearing.
Advantageous effects
Compared with the prior art, the invention has the following beneficial effects:
firstly, the vehicle brake auxiliary mechanism is simple in structure and novel in working position, the brake mechanism acts on a rear axle half shaft or a front axle driving shaft of a vehicle, the inner structure and the free space of an axle are fully utilized, the brake stress surface is increased, and the vehicle brake is effectively assisted. The effect of the brake pad on the wheel hub is reduced, and the phenomenon that the brake pad is overheated and fails due to long-time braking or rapid braking is effectively avoided; this device turns into the heat of hydraulic cylinder internal medium oil with vehicle kinetic energy, sets up cooling system simultaneously, dispels the heat to auxiliary brake mechanism through the forced air cooling structure, does not have extra energy loss, green.
Secondly, the vehicle brake auxiliary mechanism is simple in control system, convenient to control and beneficial to intelligent modification of a vehicle, so that intelligent monitoring and remote control of the vehicle management mechanism on the speed of the vehicle are realized, and remote control of deceleration and braking of the vehicle are realized while the service life of a brake pad is not influenced.
Thirdly, the vehicle brake auxiliary mechanism is provided with the miniature hydraulic oil cylinder, and the friction of the miniature hydraulic oil cylinder on driving shafts such as a vehicle half shaft and the like is controlled through the opening degree of the total oil supply system, so that the vehicle brake auxiliary mechanism can assist in vehicle deceleration or braking, and is simple to operate.
Fourthly, in the vehicle brake auxiliary mechanism, the camshaft is matched with the electric push rod to realize the joint or separation of the micro hydraulic oil cylinder and the driving shafts such as the half shaft and the like; the auxiliary brake mechanism works in a fitting state to realize speed reduction; under the separation state, this brake auxiliary mechanism does not influence the vehicle normal operating at all, effectively reduces the friction outside brake, the speed reduction, prevents the production of extra oil consumption.
And the size of a switch of the electric ball valve is set to change the oil path exchange speed between the two micro hydraulic oil cylinders, so that different speed reducing effects are realized.
Drawings
FIG. 1 is a schematic structural view of example 1 of the present invention;
FIG. 2 is a schematic view of a part of the structure in example 3 of the present invention;
FIG. 3 is a structural view of the bridge shell and the micro hydraulic cylinder in the cross section of embodiment 3 of the invention;
FIG. 4 is a schematic structural view of a cylinder block and a camshaft of embodiment 4 of the invention;
FIG. 5 is a schematic cross-sectional view of a miniature hydraulic cylinder in example 4 of the present invention;
the labels in the figure are: 1. the device comprises an axle housing, 101, a heat dissipation mechanism, 102, a main oil supply cylinder, 2, a micro hydraulic oil cylinder, 201, a piston, 202, a friction piece, 203, a communication oil pipe, 204, an electric ball valve, 205, an oil storage bin, 206, a bearing, 3, a driving shaft, 301, a cam, 4 and an electric push rod.
Detailed Description
The present invention is further described with reference to the following drawings and specific examples, which are provided for the purpose of explaining the technical solutions of the present invention in detail.
The vehicle brake auxiliary mechanism provided by the invention acts on the axle of a truck or an automobile, and can act on the rear axle or the front axle of the vehicle according to different vehicle structures, namely acts on the axle with the driving shaft 3, so as to realize the deceleration or braking of the vehicle. The embodiments of the invention are illustrated with the rear axle half shaft as an example.
Example 1
The vehicle brake auxiliary mechanism described in this embodiment is disposed on the rear axle of the vehicle, and the driving shaft 3 in the axle is the half shaft. The brake assist mechanism is disposed within the axle housing 1 and acts on the axle shaft. Specifically, the brake auxiliary mechanism acts on two half shafts of the rear axle, and the number of the miniature hydraulic oil cylinders 2 arranged on each half shaft is the same, and the positions of the miniature hydraulic oil cylinders are corresponding. The brake auxiliary mechanism on each side half shaft comprises a plurality of power telescopic parts of the miniature hydraulic oil cylinders 2 and a main oil supply cylinder communicated with each miniature hydraulic oil cylinder 2. The miniature hydraulic oil cylinder 2 comprises a cylinder body and a piston 201 rod arranged in the cylinder body, one end of the piston 201 rod is provided with a piston 201 which is tightly attached to the inner side surface of the cylinder body, the side surface of the ring of the piston 201 is provided with a sealing ring to prevent oil leakage, and the cylinder body of the miniature hydraulic oil cylinder 2 is divided into an oil storage bin 206 and a working bin by the arrangement of the piston 201; the other end of the piston 201 rod is a friction piece 202, and the friction piece 202 is a wear-resistant piece. In the embodiment, the miniature hydraulic oil cylinders 2 are fixedly arranged on the inner side surface of the rear axle housing 1, and the miniature hydraulic oil cylinders 2 on the half shafts on each side can be distributed in a staggered manner in the length direction of the half shafts and can be randomly arranged in the circumferential direction of the half shafts. In the embodiment, three micro hydraulic oil cylinders 2 are uniformly distributed on the circumference of the half shaft, and the half shaft of the vehicle is a straight rod with uniformly distributed radius.
The total oil supply cylinder can be a hydraulic oil cylinder, a control switch of the total oil supply cylinder is arranged in a cab of the vehicle, the total oil supply amount of the total oil supply cylinder to the micro hydraulic oil cylinder 2 is controlled through the size of the control switch of the total oil supply cylinder, an oil way distributor is arranged on an oil outlet pipe of the total oil supply cylinder to achieve uniform distribution of the hydraulic oil, the micro hydraulic oil cylinder 2 pushes the piston 201 to move to the friction piece 202 under the pressure of the hydraulic oil to work on the semi-axis, the friction force between the friction piece 202 and the semi-axis is controlled through the size of the total oil supply amount, and therefore the speed reduction effect of the vehicle.
A heat dissipation mechanism 101 is arranged outside the axle housing 1 of the axle, and the heat dissipation mechanism 101 in this embodiment is a fin-shaped heat dissipation fin with an oil passage inside. The heat is conducted to the hydraulic oil and then dissipated, or the heat is conducted to the axle housing 1 and then dissipated to the axle housing 1.
Example 2
The specific structure of the brake assist mechanism described in this embodiment is substantially the same as that of the brake assist mechanism described in embodiment 1, except that: the half shaft and the driving shaft 3 are cam shafts, the overall structure of the cam 301 on each cam shaft can be egg-shaped, the optimal cam 301 is a perfect circle and is arranged in a non-concentric circle with the shaft body of each cam shaft, and the height of one side of the cam 301 of each cam shaft is higher than that of the other side of the cam shaft. The cam 301 with a perfect circle structure is arranged to ensure that the friction pieces 202 of two adjacent micro hydraulic oil cylinders 2 are always attached to the cam 301 in any state in the embodiment. Each micro hydraulic oil cylinder 2 is arranged corresponding to the cam 301. Two adjacent miniature hydraulic cylinders 2 are distributed in a staggered manner in the length direction of the half shaft and are correspondingly arranged in the circumferential direction of the half shaft, namely, the two adjacent miniature hydraulic cylinders 2 only perform friction work on one of the miniature hydraulic cylinders 2 when the half shaft rotates for one circle. An oil communicating pipe 203 is arranged between every two adjacent micro hydraulic oil cylinders 2, a circuit-controlled electric ball valve 204 is arranged on the oil communicating pipe 203, a control switch of the electric ball valve 204 is located in the cab, the hydraulic oil exchange speed is controlled through the size of the electric ball valve 204, and therefore the friction force of the cam 301 on the friction piece 202 is changed, and the speed reduction speed is changed. After the main oil supply cylinder supplies oil to the two adjacent micro hydraulic oil cylinders 2, the communicating oil pipe 203 is filled with hydraulic oil to keep the oil way stable; when the friction member 202 in the first cylinder of two adjacent micro hydraulic cylinders 2 rubs against the cam 301, the piston 201 is jacked up by the cam 301, the hydraulic oil in the oil storage bin 206 of the first cylinder is extruded into the oil storage bin 206 of the second cylinder through the communicating oil pipe 203, and then the piston 201 in the second cylinder is jacked up to rub against the cam 301 rotated to the position of the piston, and the piston reciprocates in sequence. In the embodiment, most of the kinetic energy of the vehicle is converted into heat generated by the extrusion and movement of the hydraulic oil in the oil storage bin 206, and the heat is conducted through the hydraulic oil and is dissipated by the heat dissipation mechanism 101.
Example 3
The specific structure of the brake assist mechanism in this embodiment is substantially the same as that of the brake assist mechanism described in embodiment 2, except that: brake complementary unit includes miniature hydraulic cylinder 2 and electric putter 4, and 1 medial surface of axle housing is provided with T shape slide, and miniature hydraulic cylinder 2 slides and sets up in T shape slide, still is provided with the electric putter 4 of connecting each miniature hydraulic cylinder 2 in the axle housing 1, and electric putter 4 drives miniature hydraulic cylinder 2 and realizes laminating and separation of miniature hydraulic cylinder 2 and cam 301, and electric putter 4's control switch sets up in the driver's cabin. Under the non-working state of the electric push rod 4, each miniature hydraulic oil cylinder 2 is separated from the camshaft, so that the normal operation of the vehicle is not influenced, and meanwhile, no energy loss is generated; when the vehicle needs to be decelerated, the electric push rod 4 works to push each micro hydraulic oil cylinder 2 to the position of the cam 301, the friction piece 202 of one micro hydraulic oil cylinder 2 is contacted with and rubbed by the cam 301 and rotates through the half shaft, and the friction piece 202 of the other micro hydraulic oil cylinder 2 is rubbed with the cam 301 and sequentially reciprocates to realize the frictional deceleration of the vehicle.
The side surface of the ring of the cam 301 is in an arc structure, and the height of the impact surface of the cam 301 is not more than that of the corresponding side surface; the friction surface of the friction part 202 at the end part of the piston 201 rod of the miniature hydraulic oil cylinder 2 is also of an arc-shaped structure, the other end of the piston 201 rod is the piston 201, the side surface of the ring of the piston 201 is provided with a sealing ring to realize the separation of the oil storage bin 206 of the oil cylinder and the working bin and prevent the oil storage bin 206 from leaking oil to the working bin, the arc-shaped mechanisms at the side surfaces of the friction part 202 and the cam 301 ring ensure that the miniature hydraulic mechanism smoothly enters when entering, the miniature hydraulic mechanism works smoothly, the vehicle cannot shake, and meanwhile, the friction part 202 and the cam 301 are guaranteed to collide due to non-rigid entering, so that the speed reduction is influenced.
Example 4
The specific structure of the brake assist mechanism in this embodiment is substantially the same as that of the brake assist mechanism described in embodiment 3, except that: the two adjacent miniature hydraulic cylinders 2 are correspondingly arranged in the circumferential direction of the half shaft, the two miniature hydraulic cylinders 2 are integrally arranged, a through hole is formed between the two miniature hydraulic cylinders 2, and the cam shaft penetrates through the through hole. The camshaft is provided with a bearing 206 and an oil seal ring and is connected with the miniature hydraulic oil cylinder 2 through the bearing 206. The oil storage bins 206 of the two micro hydraulic oil cylinders 2 are communicated with each other through a communication oil pipe 203, the communication oil pipe 203 is provided with an electric ball valve 204, a control switch of the electric ball valve 204 is arranged in a cab, and the diameter of the communication oil pipe 203 is the same as the inner diameter of the oil storage bin 206 of the micro hydraulic oil cylinder 2. In the embodiment, the kinetic energy of the vehicle is converted into heat generated by extrusion and movement of hydraulic oil to the maximum extent.
The energy in the invention is converted into: wherein,
invention v1、v2Initial and final speeds before and after braking of the vehicle, respectively, F1For friction of the brake pads against the hub and against the ground, F2In the device, the friction force between the friction plate and the half shaft is L, and L is the sliding distance, so the friction force F between the friction plate and the half shaft2Increase of (2) tends to decrease F1(ii) a Consider also the present invention as a brake assist mechanism, where F is not considered1The generated heat, combined with the structural characteristics of the device, has a sliding distance L which is the movement distance of the piston 201, i.e. the hydraulic oil crossAnd when the vehicle moves for a certain distance, the kinetic energy of the vehicle is converted into heat generated by the transfer of the hydraulic oil.
Although the present invention has been described with reference to a preferred embodiment, it should be understood that various changes, substitutions and alterations can be made herein without departing from the spirit and scope of the invention as defined by the appended claims.
Claims (10)
1. The utility model provides a vehicle brake complementary unit, brake complementary unit sets up on the axle, is provided with drive shaft (3), its characterized in that in axle housing (1) of axle: the brake auxiliary mechanism is arranged in the axle housing (1) and acts on the driving shaft (3); the brake auxiliary mechanism comprises at least one power telescopic part, wherein the free end of the power telescopic part acts on the driving shaft (3), and the friction between the power telescopic part and the driving shaft (3) achieves the deceleration of the driving shaft (3); a heat dissipation mechanism (101) is arranged outside the axle housing (1), the heat dissipation mechanism (101) can be communicated with a jacking medium of the power expansion piece to dissipate heat of the medium, and the brake auxiliary mechanism acts on a front axle or a rear axle of the vehicle.
2. A vehicle brake assist mechanism as defined in claim 1, wherein: the power telescopic piece is a micro hydraulic oil cylinder (2); the miniature hydraulic cylinders (2) are fixed on the inner side of the axle housing (1), each miniature hydraulic cylinder (2) is communicated to a main oil supply cylinder through an oil inlet pipe, and a switch control valve of the main oil supply cylinder is arranged in the cab; the heat dissipation mechanism (101) is a fin-shaped heat dissipation sheet, and an oil pipeline can be arranged in the fin-shaped heat dissipation sheet.
3. A vehicle brake assist mechanism as defined in claim 2, wherein: the driving shaft (3) is a straight rod with uniform radius.
4. A vehicle brake assist mechanism as defined in claim 2, wherein: the driving shaft (3) is a cam shaft, and the micro hydraulic oil cylinders (2) are distributed corresponding to the cams (301) on the cam shaft.
5. A vehicle brake assist mechanism according to claim 4, wherein: the inner side face of the axle housing (1) is provided with a T-shaped slide way, the miniature hydraulic oil cylinders (2) are arranged in the T-shaped slide way in a sliding mode, electric push rods (4) connected with the miniature hydraulic oil cylinders (2) are further arranged in the axle housing (1), and the electric push rods (4) drive the miniature hydraulic oil cylinders (2) to achieve fitting and separation of the miniature hydraulic oil cylinders (2) and the cam (301).
6. A vehicle brake assist mechanism as defined in claim 5, wherein: the side surface of the ring of the cam (301) is of an arc structure, and the height of the impact surface of the cam (301) is not more than that of the corresponding side surface; the friction surface of a friction piece (202) at the end part of a piston rod of the miniature hydraulic oil cylinder (2) is also of an arc-shaped structure, the other end of the piston rod is a piston (201), and a sealing ring is arranged on the side surface of the ring of the piston (201) so as to separate an oil storage bin (206) of the oil cylinder from a working bin and prevent the oil storage bin (206) from leaking oil to the working bin.
7. A vehicle brake assist mechanism as defined in claim 6, wherein: balls are arranged in the side face of the ring of the cam (301).
8. A vehicle brake assist mechanism according to any one of claims 2 to 7, wherein: an oil communicating pipe (203) is arranged between every two adjacent micro hydraulic oil cylinders (2), an electric ball valve (204) is arranged on the oil communicating pipe (203), and a control switch of the electric ball valve (204) is arranged in a cab.
9. A vehicle brake assist mechanism as defined in claim 7, wherein: the power extensible member is two miniature hydraulic oil cylinders (2) which are oppositely arranged and integrally connected, oil storage bins (206) of the two miniature hydraulic oil cylinders (2) are mutually communicated through a communication oil pipe (203), an electric ball valve (204) is arranged on the communication oil pipe (203), a control switch of the electric ball valve (204) is arranged in a cab, and the diameter of the communication oil pipe (203) is the same as the inner diameter of the oil storage bin (206) of the miniature hydraulic oil cylinder (2).
10. A vehicle brake assist mechanism as defined in claim 9, wherein: bearing (206) and oil seal circle are established to the cover on drive shaft (3), are connected through bearing (206) between drive shaft (3) and two miniature hydraulic cylinder (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011071756.7A CN112026723A (en) | 2020-10-09 | 2020-10-09 | Vehicle brake auxiliary mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011071756.7A CN112026723A (en) | 2020-10-09 | 2020-10-09 | Vehicle brake auxiliary mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112026723A true CN112026723A (en) | 2020-12-04 |
Family
ID=73573538
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011071756.7A Pending CN112026723A (en) | 2020-10-09 | 2020-10-09 | Vehicle brake auxiliary mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112026723A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08258695A (en) * | 1995-03-20 | 1996-10-08 | Akebono Brake Ind Co Ltd | Brake device |
| KR19990001822A (en) * | 1997-06-17 | 1999-01-15 | 박병재 | Vehicle auxiliary brake |
| KR19990015160A (en) * | 1997-08-02 | 1999-03-05 | 정몽규 | Automotive Axle Compression Brake System |
| CN204279387U (en) * | 2014-09-30 | 2015-04-22 | 太仓市上阳机械有限公司 | A kind of Simple brake device |
| CN206797350U (en) * | 2017-03-31 | 2017-12-26 | 苏晗 | A kind of spare braking system |
| CN110758350A (en) * | 2019-09-24 | 2020-02-07 | 江苏彦圣科技有限公司 | Intelligent automobile emergency braking device |
| CN212447468U (en) * | 2020-10-09 | 2021-02-02 | 李勇 | Vehicle brake auxiliary mechanism |
-
2020
- 2020-10-09 CN CN202011071756.7A patent/CN112026723A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08258695A (en) * | 1995-03-20 | 1996-10-08 | Akebono Brake Ind Co Ltd | Brake device |
| KR19990001822A (en) * | 1997-06-17 | 1999-01-15 | 박병재 | Vehicle auxiliary brake |
| KR19990015160A (en) * | 1997-08-02 | 1999-03-05 | 정몽규 | Automotive Axle Compression Brake System |
| CN204279387U (en) * | 2014-09-30 | 2015-04-22 | 太仓市上阳机械有限公司 | A kind of Simple brake device |
| CN206797350U (en) * | 2017-03-31 | 2017-12-26 | 苏晗 | A kind of spare braking system |
| CN110758350A (en) * | 2019-09-24 | 2020-02-07 | 江苏彦圣科技有限公司 | Intelligent automobile emergency braking device |
| CN212447468U (en) * | 2020-10-09 | 2021-02-02 | 李勇 | Vehicle brake auxiliary mechanism |
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Application publication date: 20201204 |