CN212564163U - Novel hydraulic brake wheel cylinder clearance self-adjusting device - Google Patents
Novel hydraulic brake wheel cylinder clearance self-adjusting device Download PDFInfo
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- CN212564163U CN212564163U CN202020647485.4U CN202020647485U CN212564163U CN 212564163 U CN212564163 U CN 212564163U CN 202020647485 U CN202020647485 U CN 202020647485U CN 212564163 U CN212564163 U CN 212564163U
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- ratchet wheel
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Abstract
The utility model discloses a novel self-adjusting device for the wheel cylinder clearance of a hydraulic brake, which comprises a wheel cylinder body and a ratchet wheel, wherein guide grooves are arranged on the circumference of the ratchet wheel, and form a certain angle with the axial direction of the ratchet wheel; the gap adjusting device is characterized by further comprising a gap adjusting shifting plate, one end of the gap adjusting shifting plate is fixed on the wheel cylinder body, a guide strip is arranged at the position, corresponding to the guide groove of the ratchet wheel, of the other end of the gap adjusting shifting plate, the arrangement angle of the guide strip is matched with the guide groove, and the guide strip is embedded into the guide groove of the ratchet wheel. The utility model discloses a be equipped with the guide way that is certain angle with the ratchet axial on the ratchet to dial the conducting bar on the board through transferring the clearance and force ratchet certain angle, thereby realize the clearance of automatically regulated brake drum and friction disc, make it keep on the position of setting value, reduce the maintenance and the maintenance of stopper wheel cylinder, its simple structure, the cost is lower, has reduced the spare part from adjusting the device, can guarantee the automatic adjustment in hydraulic brake wheel cylinder clearance through simple assembly.
Description
Technical Field
The utility model relates to an automobile parts technical field mainly relates to a novel hydraulic brake wheel cylinder clearance self-modulation device.
Background
The traditional double-collar shoe type automobile hydraulic brake wheel cylinder manually shifts a ratchet wheel to adjust the gap distance between a friction plate on a shoe and a brake drum to reach a set value, and the wheel cylinder needs to be maintained and repaired frequently due to large abrasion between the friction plate and the brake drum.
With the technological progress, hydraulic brake solutions for automobiles with self-adjusting clearances have emerged.
The utility model discloses a utility model of publication No. CN1280085A (application date: 19990708) discloses a clearance self-adjusting double-collar shoe type hydraulic brake, which comprises a brake bottom plate, a brake wheel cylinder, a brake shoe friction plate, a return spring and a clearance self-adjusting transmission device arranged on the brake wheel cylinder, wherein the hook head of a clearance adjusting pulling plate is connected with a ratchet wheel, the other end of the clearance adjusting pulling plate is movably connected with a cylinder body, two ends of a pushing plate are respectively connected with a piston and one foot of the clearance adjusting pulling plate, two ends of a tension spring are connected with the pushing plate and one foot of the clearance adjusting pulling plate, and the clearance adjusting ratchet wheel and the clearance adjusting pulling plate have irreversible relative displacement during braking and braking relief, so as to compensate excessive clearance of the brake and.
The working principle of the technical scheme is as follows: when the piston in the wheel cylinder is pushed to move outwards by the oil pressure of the wheel cylinder, the push plate is driven to move leftwards, the tension spring moves leftwards along with the push plate, the right end of the gap adjusting shifting plate movably connected to the cylinder body is pulled to rotate downwards around the bolt, the left end of the gap adjusting shifting plate connected with the ratchet wheel moves upwards, the ratchet wheel on the head end of the riveting threaded sleeve is driven to rotate anticlockwise, the bolt connected with the threaded sleeve rotates synchronously, the shoe pressing plate is moved leftwards, and the distance between the friction plate and the brake drum reaches a set value. Under the action of a return spring in the brake, when the shoe plate, the threaded sleeve and the piston return, the bolt keeps the distance of relative movement with the threaded sleeve when moving outwards because the ratchet wheel cannot be reversed, and the distance between the friction plate and the brake drum is automatically fixed to a set value.
The utility model discloses a utility model of bulletin number CN201461808U (application date: 120090610) discloses a clearance self-modulation hydraulic brake wheel cylinder, including wheel cylinder body, piston assembly and clearance self-modulation device, the piston assembly includes the locating plate, clearance self-modulation device is including transferring the clearance and dialling the board, transferring the clearance clamp plate, clearance self-modulation device still includes dialling board extension spring and cylinder body extension spring, and the two ends of the dialling board extension spring of cover on transferring the clearance clamp plate collude respectively in on locating plate and transferring the clearance and dial the board, the wheel cylinder body outside is equipped with the fixed pin, cylinder body extension spring two colludes respectively on fixed pin and transferring the clearance and dial the board. The utility model discloses owing to adopted above-mentioned technical scheme, this self-modulation transmission adds on transferring the clearance and dials the board and establish and dial the board extension spring, dials the effect of board extension spring and makes to transfer the clearance and dial the board and press all the time on the ratchet to reduce the warranty work load, make the device work more stable.
The working principle of the technical scheme is as follows: the brake fluid pushes the piston to drive the positioning plate, the ratchet wheel and the gap adjusting bolt to move together, the shifting plate tension spring pulls the gap adjusting shifting plate to rotate around the positioning bolt and simultaneously shifts the ratchet wheel to rotate, and when the gap of the brake is larger than the set gap, the rotating distance of the ratchet wheel is larger than the tooth pitch; when the brake is released, the brake fluid in the wheel cylinder is squeezed by the returning shoe ribs and flows back to the pipeline, the piston returns, the gap adjusting shifting plate also returns to the original position, the ratchet wheel rotates by 1 tooth pitch, the gap adjusting bolt is screwed out, so that the overlarge gap of the brake is eliminated, the brake returns to the set gap, and the distance between the brake drum and the friction plate is automatically adjusted to keep the brake at the set position.
However, in the hydraulic brake wheel cylinder gap self-adjusting device including the above technical scheme, the action mode of the ratchet wheel is usually realized by matching parts such as the gap adjusting shifting plate, the push plate, the tension spring and the like, and the device has more parts and is complex to assemble.
SUMMERY OF THE UTILITY MODEL
The utility model discloses a solve the problem among the prior art, provide a novel hydraulic brake wheel cylinder clearance self-modulation device.
In order to solve the technical problem, the utility model adopts the following technical scheme:
a novel wheel cylinder gap self-adjusting device of a hydraulic brake comprises a wheel cylinder body and a ratchet wheel, wherein guide grooves are arranged on the circumference of the ratchet wheel, and a certain angle is formed between each guide groove and the axial direction of the ratchet wheel;
the gap adjusting device is characterized by further comprising a gap adjusting shifting plate, one end of the gap adjusting shifting plate is fixed on the wheel cylinder body, a guide strip is arranged at the position, corresponding to the guide groove of the ratchet wheel, of the other end of the gap adjusting shifting plate, the arrangement angle of the guide strip is matched with the guide groove, and the guide strip is embedded into the guide groove of the ratchet wheel.
Gear teeth are arranged on the circumference of the ratchet wheel, a certain angle is formed between the gear teeth and the axial direction of the ratchet wheel, and the guide groove is formed between every two adjacent gear teeth.
The part of the guide bar embedded into the guide groove is a sharp tooth structure matched with the guide bar.
The utility model has the advantages that:
the utility model discloses a be equipped with the guide way that is certain angle with the ratchet axial on the ratchet to dial the conducting bar on the board through transferring the clearance and force ratchet rotation certain angle, thereby realize the clearance of automatically regulated brake drum and friction disc, make it keep on the position of setting value, reduce the maintenance and the maintenance of stopper wheel cylinder.
The utility model discloses simple structure, the cost is lower, has reduced the spare part from adjusting device, can guarantee the automatic adjustment in hydraulic brake wheel cylinder clearance through simple assembly.
Drawings
Fig. 1 is a schematic structural diagram of the present invention;
FIG. 2 is a schematic view of the gap adjusting shifting plate of the present invention;
fig. 3 is an assembly diagram of the gap adjusting shifting plate and the ratchet wheel of the present invention.
Detailed Description
The following detailed description of the embodiments of the present invention will be made with reference to the accompanying drawings.
As shown in fig. 1 to 3, the utility model discloses a novel hydraulic brake wheel cylinder clearance self-modulation device, including wheel cylinder body 4, ratchet 2 and transfer the clearance dial plate 1, the guide way 22 has been arranged to the circumference of ratchet 2, and guide way 22 is certain angle with ratchet 2 axial.
One end part of the gap adjusting dial plate 1 is fixed on the wheel cylinder body 4, a guide bar 12 is arranged at the position, corresponding to a guide groove 22 of the ratchet wheel 2, of the other end part of the gap adjusting dial plate 1, the arrangement angle of the guide bar 12 is matched with the guide groove 22, and the guide bar 12 is embedded into the guide groove 22 of the ratchet wheel 2.
In this embodiment, the ratchet 2 has teeth arranged on its circumference, the teeth and the ratchet 2 are at a certain angle in the axial direction, and a guide groove 22 is formed between two adjacent teeth. The part of the conducting bar 12 embedded in the guide groove 22 is a sharp tooth structure matched with the conducting bar.
The working principle of the utility model is as follows: when the wheel cylinder piston moves, the wheel cylinder piston can drive the ratchet wheel 2 to move axially, when the ratchet wheel moves axially, the guide strip 12 on the gap shifting plate 1 can bounce along the guide groove 22 of the ratchet wheel 2, when the axial movement of the piston exceeds a set value, the guide strip on the gap shifting plate 1 jumps to the next guide groove of the ratchet wheel 2, when the wheel cylinder piston rebounds, the ratchet wheel is forced to rotate by an angle of a set value due to the unidirectional action of the guide groove 22 and the guide strip 12, and the gap adjusting bolt 3 is screwed out (the arrangement of the ratchet wheel 2 and the gap adjusting bolt 3 on the wheel cylinder is the prior art), so that the overlarge gap of the brake is eliminated, the brake returns to the set gap, the distance between the brake drum and the friction plate is automatically adjusted, the brake drum and the friction plate are kept at the position of the set value, and the function of automatically adjusting.
The utility model discloses a be equipped with the guide way that is certain angle with the ratchet axial on the ratchet to dial the conducting bar on the board through transferring the clearance and force ratchet rotation certain angle, thereby realize the clearance of automatically regulated brake drum and friction disc, make it keep on the position of setting value, reduce the maintenance and the maintenance of stopper wheel cylinder.
The utility model discloses simple structure, the cost is lower, has reduced the spare part from adjusting device, can guarantee the automatic adjustment in hydraulic brake wheel cylinder clearance through simple assembly.
The above embodiments are only used for illustrating but not limiting the technical solutions of the present invention, and although the present invention is described in detail with reference to the above embodiments, those of ordinary skill in the art should understand that: the present invention may be modified or substituted with equivalents without departing from the spirit and scope of the invention, which should be construed as being limited only by the claims.
In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element to which the description refers must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the scope of the present invention.
Claims (3)
1. The utility model provides a novel self-modulation of hydraulic brake wheel cylinder clearance device, includes wheel cylinder body and ratchet, its characterized in that: guide grooves are arranged on the circumference of the ratchet wheel, and a certain angle is formed between the guide grooves and the axial direction of the ratchet wheel;
the gap adjusting device is characterized by further comprising a gap adjusting shifting plate, one end of the gap adjusting shifting plate is fixed on the wheel cylinder body, a guide strip is arranged at the position, corresponding to the guide groove of the ratchet wheel, of the other end of the gap adjusting shifting plate, the arrangement angle of the guide strip is matched with the guide groove, and the guide strip is embedded into the guide groove of the ratchet wheel.
2. The novel hydraulic brake wheel cylinder gap self-adjusting device as claimed in claim 1, is characterized in that: gear teeth are arranged on the circumference of the ratchet wheel, a certain angle is formed between the gear teeth and the axial direction of the ratchet wheel, and the guide groove is formed between every two adjacent gear teeth.
3. The novel hydraulic brake wheel cylinder gap self-adjusting device as claimed in claim 1 or 2, characterized in that: the part of the guide bar embedded into the guide groove is a sharp tooth structure matched with the guide bar.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020647485.4U CN212564163U (en) | 2020-04-26 | 2020-04-26 | Novel hydraulic brake wheel cylinder clearance self-adjusting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020647485.4U CN212564163U (en) | 2020-04-26 | 2020-04-26 | Novel hydraulic brake wheel cylinder clearance self-adjusting device |
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| Publication Number | Publication Date |
|---|---|
| CN212564163U true CN212564163U (en) | 2021-02-19 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020647485.4U Active CN212564163U (en) | 2020-04-26 | 2020-04-26 | Novel hydraulic brake wheel cylinder clearance self-adjusting device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212564163U (en) |
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2020
- 2020-04-26 CN CN202020647485.4U patent/CN212564163U/en active Active
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| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder |
Address after: No. 603, zhannan Avenue, intersection of Nanyi road and Baimian Road, Anyang City, Henan Province Patentee after: Deli New Energy Vehicle Co.,Ltd. Address before: No. 603, zhannan Avenue, intersection of Nanyi road and Baimian Road, Anyang City, Henan Province Patentee before: HENAN DERRY NEW ENERGY AUTOMOBILE Co.,Ltd. |
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| CP01 | Change in the name or title of a patent holder |