CN214837997U - Clamping drum brake - Google Patents
Clamping drum brake Download PDFInfo
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- CN214837997U CN214837997U CN202121374020.7U CN202121374020U CN214837997U CN 214837997 U CN214837997 U CN 214837997U CN 202121374020 U CN202121374020 U CN 202121374020U CN 214837997 U CN214837997 U CN 214837997U
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- brake
- block
- wedge
- fixedly connected
- piston
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Abstract
The utility model discloses a centre gripping drum brake, including the brake caliper, install the cylinder body in the brake caliper, it has the piston to slide in the cylinder body, the piston carries on the one end fixedly connected with of the back mutually with the cylinder body and goes up the brake block, be equipped with the cell body in the brake caliper, sliding connection has lower brake block in the cell body, the cell body communicates with each other with the piston through the spread groove, be equipped with the piece that resets down between brake block and the cell body, just the first wedge of bottom fixedly connected with of brake block down, sliding connection has the second wedge between cell body and the spread groove, fixedly connected with L type pole on the piston, L type pole offsets with the second wedge. The utility model discloses a with the cooperation of the well hollow cylinder of cylinder body intercommunication and supporting shoe, can support L type pole, make it can not lead to the junction fracture of L type pole and piston because of the reaction force, simultaneously, when L type pole no longer drives the second wedge and removes, can realize down that the brake block resets fast and is difficult for producing the abnormal sound.
Description
Technical Field
The utility model relates to a stopper technical field especially relates to a clamping drum brake.
Background
The prior art discloses a clamping drum brake with application number of CN201710668214.X, which comprises a brake caliper and a friction cylinder fixed on a spoke, wherein the brake caliper comprises an upper brake mechanism and a lower brake mechanism, the upper brake mechanism comprises a cylinder body, a piston and an upper friction plate, the lower brake mechanism comprises a lower friction plate and a lower friction plate driving mechanism, and the lower friction plate and the upper friction plate are distributed inside and outside the friction cylinder; the piston drives the upper friction plate to approach the friction cylinder, and simultaneously drives the lower friction plate to approach the friction cylinder through the lower friction plate driving mechanism. The invention provides a clamping drum brake with double-side stress of a friction drum, which solves the problem that the existing drum brake is easy to cause the reduction of the roundness of the friction drum.
The above-mentioned patent publication document has a disadvantage in that, when the active driving lever works, it receives a reaction force from the driving lever, so that there may be fracture at the joint of the active driving and the piston for a long time, secondly, the lower friction plate cannot be quickly reset, and it is not limited, and the lower friction plate may shake when the car is jolt, causing abnormal sound.
SUMMERY OF THE UTILITY MODEL
The utility model aims at solving the shortcoming that exists among the prior art, and the centre gripping drum brake who provides, it can support L type pole through the cooperation with the well hollow cylinder of cylinder body intercommunication and supporting shoe, makes it can not lead to the junction fracture of L type pole and piston because of reaction force, and simultaneously, when L type pole no longer drives the removal of second wedge, can realize that the brake block resets fast and is difficult for producing the abnormal sound down.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
the utility model provides a centre gripping drum brake, includes the brake caliper, install the cylinder body in the brake caliper, it has the piston to slide in the cylinder body, the piston carries on the brake block with the one end fixedly connected with that the cylinder body carried on the back mutually, be equipped with the cell body in the brake caliper, sliding connection has lower brake block in the cell body, the cell body communicates with each other with the piston through the spread groove, be equipped with the piece that resets down between brake block and the cell body, just the first wedge of bottom fixedly connected with of brake block down, sliding connection has the second wedge between cell body and the spread groove, fixedly connected with L type pole on the piston, L type pole offsets with the second wedge, just be equipped with supporting mechanism between L type pole and the cylinder body.
Preferably, the piece that resets is the spring, the upper end and the lower brake block fixed connection of spring, the lower extreme and the inner wall fixed connection of cell body of spring.
Preferably, the second wedge-shaped block is arranged in an isosceles trapezoid.
Preferably, an inclined surface is arranged at one end, close to the second wedge block, of the L-shaped rod, and the inclined surface is matched with the second wedge block.
Preferably, the supporting mechanism comprises a hollow cylinder fixed on the inner wall of the connecting groove, a sliding block is slidably connected in the hollow cylinder, the hollow cylinder is communicated with the cylinder body through a connecting pipe, a supporting block is fixedly connected to the sliding block, the supporting block penetrates through the hollow cylinder and is slidably connected with the hollow cylinder, and the supporting block is fixedly connected with the L-shaped rod.
Preferably, the outer wall of the supporting block is sleeved with a sealing ring, and the sealing ring abuts against the inner wall of the hollow cylinder.
Preferably, one end of the L-shaped rod, which is far away from the inclined plane, is fixedly connected with the supporting block.
Compared with the prior art, the utility model, its beneficial effect does:
1. the cylinder body work can extrude hydraulic oil to the cavity in the section of thick bamboo, and then drive slider and supporting shoe remove to can support L type pole, make it can not lead to the junction fracture of L type pole and piston because of reaction force, increase its life.
2. When the piston resets, under the effect of spring, can realize the restoration of brake block down and spacing to it, realize the spacing and the restoration of second wedge simultaneously, make the brake block reset fast and be difficult for producing the abnormal sound because of jolting.
To sum up, the utility model discloses a cooperation with the well cavity section of thick bamboo of cylinder body intercommunication and supporting shoe can support L type pole, makes it can not lead to the junction fracture of L type pole and piston because of reaction force, and simultaneously, when L type pole no longer drives the second wedge and removes, can realize that the brake block resets fast down and is difficult for producing the abnormal sound.
Drawings
Fig. 1 is a schematic structural view of a drum brake according to the present invention;
fig. 2 is a schematic structural diagram of a connection mechanism in a clamping drum brake according to the present invention.
In the figure: the brake comprises a brake caliper 1, a cylinder body 2, a piston 3, an upper brake pad 4, a connecting pipe 5, a supporting mechanism 6, a 7L-shaped rod, a connecting groove 8, a groove body 9, a lower brake pad 10, a second wedge-shaped block 11, a first wedge-shaped block 12, a spring 13, a hollow cylinder 14, a sliding block 15 and a supporting block 16.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.
Referring to fig. 1-2, a drum brake, includes brake caliper 1, installs cylinder body 2 in the brake caliper 1, and the piston 3 has slided in the cylinder body 2, and the one end fixedly connected with brake block 4 that piston 3 carried on the back with the cylinder body 2 mutually is equipped with cell body 9 in the brake caliper 1, and sliding connection has lower brake block 10 in cell body 9, above all is prior art.
The groove body 9 is communicated with the piston 3 through the connecting groove 8, a reset piece is arranged between the lower brake block 10 and the groove body 9, the reset piece is a spring 13, the upper end of the spring 13 is fixedly connected with the lower brake block 10, and the lower end of the spring 13 is fixedly connected with the inner wall of the groove body 9.
A first wedge-shaped block 12 is fixedly connected to the bottom of the lower brake pad 10, a second wedge-shaped block 11 is slidably connected between the groove body 9 and the connecting groove 8, and the second wedge-shaped block 11 is arranged in an isosceles trapezoid shape; fixedly connected with L type pole 7 on the piston 3, L type pole 7 offsets with second wedge 11, and the L type pole 7 is close to the one end of second wedge 11 and is provided with the inclined plane, inclined plane and second wedge 11 phase-match.
And a supporting mechanism 6 is arranged between the L-shaped rod 7 and the cylinder body 2, the supporting mechanism 6 comprises a hollow cylinder 14 fixed on the inner wall of the connecting groove 8, a sliding block 15 is connected in the hollow cylinder 14 in a sliding manner, the hollow cylinder 14 is communicated with the cylinder body 2 through a connecting pipe 5, namely, hydraulic oil in the cylinder body 2 can enter the hollow cylinder 14, a supporting block 16 is fixedly connected on the sliding block 15, the supporting block 16 penetrates through the hollow cylinder 14 and is in sliding connection with the hollow cylinder 14, the supporting block 16 is fixedly connected with the L-shaped rod 7, a sealing ring is sleeved on the outer wall of the supporting block 16 and abuts against the inner wall of the hollow cylinder 14, and one end, far away from the inclined plane, of the L-shaped rod 7 is fixedly connected with the supporting block 16, so that the supporting effect on the L-shaped rod 7 is best.
When the utility model is used, the cylinder body 2 works to drive the piston 3 and the L-shaped rod 7 to move, and the L-shaped rod 7 moves to drive the second wedge block 11 and the first wedge block 12 to move, so that the upper brake block 4 and the lower brake block 10 move relatively; the cylinder body 2 can extrude hydraulic oil into the hollow cylinder 14 when working, and then drives the slider 15 and the supporting block 16 to move, so that the L-shaped rod 7 can be supported, the joint of the L-shaped rod 7 and the piston 3 cannot be broken due to reaction force, and the service life of the L-shaped rod is prolonged;
when the piston 3 is reset, under the action of the spring 13, the lower brake pad 10 can be reset and limited, and the second wedge block 11 is limited and reset at the same time, so that the lower brake pad 10 is reset quickly and abnormal sound is not easy to generate due to bumping.
The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.
Claims (7)
1. The utility model provides a centre gripping drum brake, includes brake caliper (1), install cylinder body (2) in brake caliper (1), it has piston (3) to slide in cylinder body (2), brake block (4) on the one end fixedly connected with that piston (3) and cylinder body (2) carried on the back mutually, be equipped with cell body (9) in brake caliper (1), brake block (10) under sliding connected with in cell body (9), its characterized in that, cell body (9) communicate with each other with piston (3) through spread groove (8), be equipped with the release piece down between brake block (10) and cell body (9), just the bottom fixedly connected with first wedge (12) of brake block (10) down, sliding connected with second wedge (11) between cell body (9) and spread groove (8), fixedly connected with L type pole (7) on piston (3), L type pole (7) offset with second wedge (11), and a supporting mechanism (6) is arranged between the L-shaped rod (7) and the cylinder body (2).
2. A drum brake assembly according to claim 1, characterised in that the return element is a spring (13), the upper end of the spring (13) being fixedly connected to the lower brake plate (10), and the lower end of the spring (13) being fixedly connected to the inner wall of the channel (9).
3. A drum brake according to claim 1, in which said second wedge-shaped blocks (11) are arranged as isosceles trapezoids.
4. A brake drum brake according to claim 1, characterized in that the end of the L-shaped lever (7) near the second wedge block (11) is provided with a bevel, which matches the second wedge block (11).
5. A drum brake according to claim 1, characterised in that said support means (6) comprise a hollow cylinder (14) fixed to the inner wall of the connecting groove (8), said hollow cylinder (14) having a sliding block (15) slidably connected thereto, said hollow cylinder (14) communicating with the cylinder body (2) through the connecting tube (5), said sliding block (15) having a support block (16) fixedly connected thereto, said support block (16) extending through the hollow cylinder (14) and being slidably connected thereto, said support block (16) being fixedly connected to the L-shaped rod (7).
6. A drum brake according to claim 5, in which the outer wall of the support block (16) is fitted with a sealing ring which abuts against the inner wall of the hollow cylinder (14).
7. A drum brake according to claim 1, in which the end of the L-shaped lever (7) remote from the inclined surface is fixedly connected to a support block (16).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121374020.7U CN214837997U (en) | 2021-06-21 | 2021-06-21 | Clamping drum brake |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121374020.7U CN214837997U (en) | 2021-06-21 | 2021-06-21 | Clamping drum brake |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214837997U true CN214837997U (en) | 2021-11-23 |
Family
ID=78808559
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121374020.7U Active CN214837997U (en) | 2021-06-21 | 2021-06-21 | Clamping drum brake |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214837997U (en) |
-
2021
- 2021-06-21 CN CN202121374020.7U patent/CN214837997U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: Clamping drum brake Effective date of registration: 20221121 Granted publication date: 20211123 Pledgee: Postal Savings Bank of China Limited by Share Ltd. Weifang branch Pledgor: Weifang Hengsen Machinery Co.,Ltd. Registration number: Y2022980022704 |