CN220447857U - Tractor parking brake meeting large-stroke requirement - Google Patents
Tractor parking brake meeting large-stroke requirement Download PDFInfo
- Publication number
- CN220447857U CN220447857U CN202322296285.5U CN202322296285U CN220447857U CN 220447857 U CN220447857 U CN 220447857U CN 202322296285 U CN202322296285 U CN 202322296285U CN 220447857 U CN220447857 U CN 220447857U
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- Prior art keywords
- handle
- parking brake
- pawl
- cable
- hole
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- 230000001105 regulatory effect Effects 0.000 claims description 6
- 244000043261 Hevea brasiliensis Species 0.000 claims description 4
- 229920001971 elastomer Polymers 0.000 claims description 4
- 238000001746 injection moulding Methods 0.000 claims description 4
- 229920003052 natural elastomer Polymers 0.000 claims description 4
- 229920001194 natural rubber Polymers 0.000 claims description 4
- 230000000694 effects Effects 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000001276 controlling effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
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- Braking Elements And Transmission Devices (AREA)
- Mechanical Control Devices (AREA)
Abstract
The utility model discloses a tractor parking brake meeting the requirement of large travel, wherein a pawl is arranged on a handle and is connected with a push rod assembly of a button, the pawl is meshed with a ratchet on a mounting bracket, the other end of the handle and the middle part of a guy cable fixing plate are rotationally connected with the mounting bracket through a rotating shaft, a supporting rod is fixed in the lower side of the handle, a radial through hole is formed in the middle part of the supporting rod, an adjusting shaft is inserted in the through hole, threads are arranged at the lower end of the adjusting shaft, a nut is screwed at the lower end of the adjusting shaft, a pin shaft is arranged at the upper end of the guy cable fixing plate, and the upper end of the adjusting shaft is rotationally connected with the pin shaft. According to the utility model, an operator holds the handle sleeve on the control handle to pull up forcefully, the handle rotates around the rotating shaft by a certain angle, a linear motion stroke is formed in the linear direction of the inhaul cable, and the inhaul cable is driven to tighten the brake shoe, so that parking brake is realized, the rotating angle can reach 56 degrees, the linear stroke of the inhaul cable can reach 46mm at maximum, and the requirement of large-stroke large traction force can be met.
Description
Technical Field
The utility model relates to the technical field of tractor parking brake operating devices, in particular to a tractor parking brake meeting the requirement of large travel.
Background
As an important branch of engineering vehicles, tractors consist of a trailer and at least one trailer, the requirements of the brakes of the tractor being mainly determined by the weight of the trailer being towed. The brake of the tractor mainly comprises a control handle and a mounting bracket, wherein the handle forms a linear direction travel around the rotating angle of the mounting bracket to pull the inhaul cable to realize parking brake. The control handle has a simple structure and limited travel, can not meet the traction requirements of a large-travel heavy trailer, and can generate the conditions of braking weakness or parking and sliding.
Disclosure of Invention
The utility model aims to overcome the defect that the existing tractor parking brake cannot meet the requirements of a large stroke, namely the travel is larger than 25, and the slip is caused by insufficient traction, and provides the tractor parking brake meeting the requirements of the large stroke.
The utility model is realized by the following technical scheme:
the utility model provides a satisfy tractor parking brake of big stroke demand, including installing support, handle, button push rod assembly, cable fixed plate and the pawl that have the ratchet, handle one end on be equipped with the handle cover, be equipped with in the handle button push rod assembly, the pawl install on the handle and be connected with button push rod assembly, pawl and the ratchet meshing on the installing support, the middle part of handle other end and cable fixed plate is rotated with the installing support through the axis of rotation and is connected, wherein the cable fixed plate is located inside the handle, is fixed with branch in the handle downside inside, opens at the middle part of branch has radial through-hole, alternates the regulating axle in the through-hole, the regulating axle lower extreme is equipped with the screw thread, and revolves there is the nut the upper end of cable fixed plate be equipped with the round pin axle, the upper end and the round pin axle of regulating axle rotate and be connected.
The bottom end of the mounting bracket is provided with a turning plate, and a fixing hole is formed in the turning plate.
The handle sleeve is a rubber handle sleeve and is formed by injection molding of natural rubber.
One end of a inhaul cable is fixed at the lower end of the inhaul cable fixing plate.
The utility model has the advantages that: according to the utility model, the installation support is fixedly connected with the whole vehicle, the stay cable is connected with the brake shoe of the whole vehicle to form a parking brake system, when the vehicle is required to park, an operator holds the handle sleeve on the control handle to pull upwards with force, the control handle rotates a certain angle around the rotating shaft, the stay cable fixing plate and the control handle synchronously rotate, a linear motion stroke is formed in the linear direction of the stay cable, the stay cable is driven to tighten the brake shoe, thus parking brake is realized, the rotating angle can reach 56 degrees, the linear stroke of the stay cable can reach 46mm at maximum, the requirement of large-stroke large-traction force can be met, the parking brake system is suitable for the requirement of large-traction force in airport aviation places, and the problem of slide slope caused by insufficient traction force is well solved.
Drawings
FIG. 1 is a schematic diagram of the structure of the present utility model;
fig. 2 is an exploded view of the present utility model.
Detailed Description
As shown in fig. 1 and 2, a tractor parking brake meeting the requirement of large travel comprises a mounting bracket 1 with ratchets, a handle 2, a push button push rod assembly 3, a cable fixing plate 4 and a pawl 5, wherein a handle sleeve 6 is arranged at one end of the handle 2, the push button push rod assembly 3 is arranged in the handle 2, the pawl 5 is arranged on the handle 2 and is connected with the push button push rod assembly 3, the pawl 5 is meshed with ratchets 13 on the mounting bracket 1, the other end of the handle 2 and the middle part of the cable fixing plate 4 are rotationally connected with the mounting bracket 1 through a rotating shaft 7, the cable fixing plate 4 is positioned in the handle 2, a supporting rod 8 is fixed in the lower side of the handle 2, a radial through hole is formed in the middle of the supporting rod 8, an adjusting shaft 9 is inserted in the through hole, threads are arranged at the lower end of the adjusting shaft 9, a nut 10 is screwed on the upper end of the cable fixing plate 4, and a pin 11 is arranged at the upper end of the adjusting shaft 9 and is rotationally connected with the pin 11.
The bottom end of the mounting bracket 1 is provided with a turning plate 12, and a fixing hole is formed in the turning plate 12 and used for connecting and fixing the whole parking brake with the whole vehicle.
The handle sleeve 6 is a rubber handle sleeve 6 and is formed by injection molding of natural rubber.
One end of a cable is fixed at the lower end of the cable fixing plate 4, and the other end of the cable is connected with a brake shoe of the whole vehicle to form a parking brake system.
The mounting bracket 1 has a fixing function, fixes the parking brake and the whole vehicle in a fastening piece connection mode, and has a connecting, fixing and supporting function. The structure adopts one-step forming and hole drawing film forming, and the strength of the part meets the requirement of fixed supporting function.
The handle 2 is an operating device of a parking brake, the operating position and the size of the handle 2 are required to meet the requirements of the whole car on the human-machine engineering, and a rubber handle sleeve 6 is assembled outside the operating position of the operating handle 2, so that the effects of attractive appearance, protection and comfort in operation are achieved. The operator tightens the inhaul cable by grasping the handle 2 and controlling the angle formed by the rotation of the controller to be converted into linear motion in the inhaul cable direction, so that the parking brake is realized, and the larger the control angle is, the larger the formation is, and the larger the control force is.
The push button push rod assembly 3 is a key connection structure, and the push rod is pushed to push downwards by pressing the push button by the hand of an operator, so that the pawl ratchet is separated, and the control handle 2 can be pulled to tighten the inhaul cable. The button is put down, the ratchet is meshed with the pawl 5, the operating handle 2 cannot rotate, and the functions of stopping the vehicle and preventing accidental release are achieved.
The handle sleeve 6 is formed by injection molding of natural rubber, and plays roles in protecting and providing comfort for users.
The rotating shaft is connected with the handle 2, the inhaul cable fixing plate 4 and the mounting bracket 1, and the operating handle 2 rotates by a corresponding angle through the rotating shaft to form linear motion to pull the inhaul cable to realize parking brake effect.
The adjusting shaft can move in the through hole of the supporting rod, the length of the adjusting shaft extending out of the through hole is adjusted through the nut, therefore, the initial angle of the inhaul cable fixing plate 4 is adjusted, the inhaul cable fixing plate 4 is adjusted to a proper position according to the brake disc and the inhaul cable length after loading, the whole vehicle is enabled to be free from braking in a working state, and enough braking force is used for parking when parking.
The meshing of ratchet pawl and push rod button device cooperation use, and the meshing of ratchet pawl is realized the rotation and the fixed of control handle 2 with breaking away from, and the ratchet pawl meshing can't break away from when the button is not pressed, and control handle 2 can't work, and the ratchet is pressed to the button and pawl 5 drops control handle 2 rotatable normal work, and the meshing of ratchet and pawl 5 can prevent the whole car slide accident that control handle 2 unexpected release caused.
The stay cable fixing plate 4 is a fixing device for installing a stay cable and is used for connecting a normal stay cable with a parking brake.
Claims (4)
1. A tractor parking brake meeting large travel demands, characterized by: including installing support, handle, button push rod assembly, cable fixed plate and the pawl that have the ratchet, handle one end on be equipped with the handle cover, be equipped with in the handle button push rod assembly, the pawl install on the handle and be connected with button push rod assembly, pawl and the ratchet meshing on the installing support, the middle part of handle other end and cable fixed plate is rotated with the installing support through the axis of rotation and is connected, wherein the cable fixed plate is located inside the handle, is fixed with branch in the inside handle downside, opens at the middle part of branch has radial through-hole, alternates the regulating spindle in the through-hole, the regulating spindle lower extreme is equipped with the screw thread, and revolves there is the nut the upper end of cable fixed plate be equipped with the round pin axle, the upper end and the round pin axle of regulating spindle rotate to be connected.
2. A tractor parking brake meeting large travel demands as defined by claim 1 wherein: the bottom end of the mounting bracket is provided with a turning plate, and a fixing hole is formed in the turning plate.
3. A tractor parking brake meeting large travel demands as defined by claim 1 wherein: the handle sleeve is a rubber handle sleeve and is formed by injection molding of natural rubber.
4. A tractor parking brake meeting large travel demands as defined by claim 1 wherein: one end of a inhaul cable is fixed at the lower end of the inhaul cable fixing plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322296285.5U CN220447857U (en) | 2023-08-25 | 2023-08-25 | Tractor parking brake meeting large-stroke requirement |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322296285.5U CN220447857U (en) | 2023-08-25 | 2023-08-25 | Tractor parking brake meeting large-stroke requirement |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220447857U true CN220447857U (en) | 2024-02-06 |
Family
ID=89731538
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322296285.5U Active CN220447857U (en) | 2023-08-25 | 2023-08-25 | Tractor parking brake meeting large-stroke requirement |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220447857U (en) |
-
2023
- 2023-08-25 CN CN202322296285.5U patent/CN220447857U/en active Active
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |