CN214304972U - Alarm, brake shoe and drum brake with alarm function - Google Patents
Alarm, brake shoe and drum brake with alarm function Download PDFInfo
- Publication number
- CN214304972U CN214304972U CN202023004857.0U CN202023004857U CN214304972U CN 214304972 U CN214304972 U CN 214304972U CN 202023004857 U CN202023004857 U CN 202023004857U CN 214304972 U CN214304972 U CN 214304972U
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- Prior art keywords
- alarm
- friction
- bottom plate
- brake
- drum
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- 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.)
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- 239000002783 friction material Substances 0.000 claims description 17
- 238000005452 bending Methods 0.000 claims description 2
- 230000000149 penetrating effect Effects 0.000 claims description 2
- 238000013461 design Methods 0.000 abstract description 13
- 238000009434 installation Methods 0.000 abstract description 13
- 238000004519 manufacturing process Methods 0.000 abstract description 9
- 238000000034 method Methods 0.000 abstract description 5
- 230000000694 effects Effects 0.000 abstract description 3
- 230000002265 prevention Effects 0.000 abstract description 3
- 241001391944 Commicarpus scandens Species 0.000 abstract 2
- 238000003825 pressing Methods 0.000 abstract 1
- 238000010586 diagram Methods 0.000 description 6
- 210000000078 claw Anatomy 0.000 description 3
- 230000001629 suppression Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000008358 core component Substances 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
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Abstract
The utility model relates to the technical field of braking devices, in particular to a simple alarm, a wear alarm and a drum brake with alarm function, the alarm has simple structure, low design, manufacture and installation cost, can simultaneously realize the functions of error prevention and limit, is not easy to break in the use process, has higher safety performance, the bottom plate of a brake shoe is a stamping part, only a limit groove is arranged at the end part of the bottom plate by one-time stamping in the manufacture process, the fixed installation with the alarm can be conveniently realized, the alarm is accommodated in the limit groove, the installation of the bottom plate and the alarm can be conveniently realized by rivet pressing and riveting, the assembly operation is simple, the bottom plate has good error prevention and limit effects, the drum brake with alarm function has simple integral structure and convenient assembly, the design, manufacture and installation cost is low, and the drum brake with alarm function is not easy to break in the use process, the safety performance is higher.
Description
Technical Field
The utility model relates to a arresting gear technical field, concretely relates to simple and easy type alarm, brake shoe and have alarming function's drum brake.
Background
The brake is an important core component for braking various vehicles such as automobiles, mine cars and the like, and mainly comprises a disc type brake and a drum type brake, wherein a shoe assembly is bonded with a friction block in the drum type brake, and when the automobiles are braked, the friction block in the shoe assembly in the drum type brake is close to the drum type brake, so that the brake block is pressed against the drum type brake to generate friction force, and the aim of decelerating or stopping the automobiles is fulfilled.
The alarm is designed to completely alarm the friction material to be worn, remind a driver that the friction material is about to be worn, and replace a horseshoe assembly as soon as possible for the safety problem, wherein when the friction material is worn to about 2mm to 2.5mm away from a bottom plate in the horseshoe assembly, the alarm is in contact friction with a brake drum to generate noise above 70dB, and the driver is warned that the horseshoe assembly needs to be replaced.
Generally, drum brake wear alarm device among the prior art sets up on the bottom plate of brake shoe assembly through rivet fixation, the phenomenon of warping that appears in order to prevent that the riveting is improper to the alarm when assembling from appearing, and the phenomenon that the alarm and brake drum contact friction atress lead to the alarm to appear deflecting in the use, all be provided with the locating pawl that is used for with the bottom plate butt of brake shoe assembly on the current alarm, but this structural design not only makes alarm structural design and mould preparation more complicated, design cost of manufacture is high, and stress concentration and the phenomenon of rupture appear easily in the turn position of this locating pawl, in case the fracture will lead to losing alarming function in the use, there is great potential safety hazard.
Disclosure of Invention
An object of the utility model is to provide a simple structure to not enough among the prior art, design, preparation and installation cost are low, can realize mistake proofing and limit function simultaneously, are difficult for the fracture in the use moreover, the higher alarm of security performance.
Another object of the present invention is to provide a brake shoe including the simple alarm.
Another object of the present invention is to provide a drum brake including the above brake shoe.
In order to achieve the above purpose, the utility model provides the following technical scheme:
the utility model provides an alarm, includes the alarm body, the alarm body includes fixed mounting portion, friction alarm portion, fixed mounting portion, friction alarm portion connect through a crooked connecting portion, the last fixed connection hole of having seted up of fixed mounting portion.
Wherein, the whole alarm body is plate-shaped.
Preferably, the alarm body is integrally formed by bending and stamping.
The brake shoe comprises the alarm, a base plate and a friction material, wherein the base plate is used for bearing the alarm, the friction material is used for performing friction braking with a brake surface of a brake drum of a drum brake, a riveting hole is formed in the base plate, a fixed installation part is attached to the base plate and fixed through a rivet penetrating through a fixed connection hole and the riveting hole, a limiting groove used for containing a friction alarm portion of the alarm is formed in the front end of the base plate, the friction material is attached to the other side of the base plate, and the friction surface of the friction material is higher than the free end of the friction alarm portion.
In the installation and combination state, the limiting groove prevents the friction alarm part from swinging left and right, and allows the friction alarm part to swing back and forth within a certain range by taking the bent connecting part as a fulcrum.
A drum brake with an alarm function adopts the brake shoe, and the friction surface of the friction material is at least 5mm higher than the free end of the friction alarm part.
Compared with the prior art, the beneficial effects of the utility model are that:
the utility model discloses an alarm simple structure, design, preparation and installation cost are low, can realize mistake proofing and limit function simultaneously, are difficult for the fracture in the use moreover, and the security performance is higher.
The utility model discloses a bottom plate of brake shoe itself is the stamping workpiece, only needs to set up the spacing groove at its tip one-time stamping forming in manufacturing process, and realization that can be convenient and the fixed mounting of alarm can not increase the design of mould, the preparation degree of difficulty and cost, conveniently installs simultaneously, through spacing groove holding alarm, rethread rivet suppression riveting can be convenient the realization bottom plate with the installation of alarm, assembly easy operation, itself has good mistake proofing and spacing effect.
The utility model discloses a drum brake overall structure with alarming function is simple, convenient assembling, and design, preparation and installation cost are low, are difficult for the fracture in the use moreover, and the security performance is higher.
Drawings
Fig. 1 is a schematic structural diagram of an alarm in the prior art.
Fig. 2 is a schematic structural diagram of a brake shoe in the prior art.
Fig. 3 is a schematic structural diagram of the alarm of the present invention.
Fig. 4 is a schematic structural diagram of the brake shoe bottom plate of the present invention.
Fig. 5 is a schematic structural diagram of the brake shoe of the present invention.
Fig. 6 is a schematic structural view of the drum brake with alarm function of the present invention.
Detailed Description
The present invention will be described in detail below with reference to the accompanying drawings and specific embodiments.
Fig. 1 is a schematic structural diagram of an alarm in the prior art, the alarm is provided with a positioning claw 1 which is used for preventing the alarm from being riveted incorrectly during assembly, and the alarm and a brake drum are contacted with each other and subjected to friction stress in the use process to cause the alarm to deflect, as shown in fig. 2, the alarm is fixed on a bottom plate 2 through rivets 3 under the assembly state of a brake shoe, the positioning claw 1 of the alarm is abutted and attached to the front end of the bottom plate 2 to play the roles of error prevention and limitation, but the alarm is complex in structural design and mold manufacture, high in design and manufacture cost, stress concentration is easy to occur at the turning part of the positioning claw 1 to cause the phenomenon of fracture, once the fracture causes the loss of the alarm function in the use process, and great potential safety hazard exists.
Example 1.
As shown in fig. 3, the present embodiment provides an alarm, including alarm body 5, alarm body 5 includes fixed mounting portion 51, friction alarm portion 52, fixed mounting portion 51, friction alarm portion 52 connect through a crooked connecting portion 53, fixed mounting portion 51 is last to have seted up fixed connection hole 54.
Wherein, the whole platelike that is of alarm body is convenient for and 2 assembly fixings of bottom plate of brake shoe, and carries out mistake proofing, spacing easily in installation and use, and friction alarm portion 52 is connected with fixed mounting portion 51 through the crooked connecting portion 53 that have certain width simultaneously, is favorable to improving structural strength, difficult fracture in the use, and the security performance is higher.
Preferably, the alarm body 5 is integrally bent and punched, and the alarm is simple in structure and low in design, manufacture and installation cost.
Example 2.
As shown in fig. 4 to 5, the present embodiment provides a brake shoe, which includes the above-mentioned alarm body 5, and further includes a bottom plate 2 for bearing the alarm body 5, and a friction material 6 for performing friction braking with a braking surface of a brake drum of a drum brake, a riveting hole 21 is formed in the bottom plate 2, the fixed mounting portion 51 is attached to the bottom plate 2 and fixed by a rivet passing through the fixed mounting hole 54 and the riveting hole 21, a limiting groove 22 for accommodating a friction alarm portion 52 of the alarm is provided at a front end of the bottom plate 2, the friction material 6 is attached to another side of the bottom plate 2, and a friction surface of the friction material 6 is higher than a free end of the friction alarm portion 52.
In the assembled state, the limiting groove 22 prevents the friction alarm part 52 from swinging left and right, allows the friction alarm part 52 to swing back and forth within a certain range by taking the bent connecting part 53 as a fulcrum, and can generate noise of more than 70dB for alarming when the friction material 6 is worn by friction and the friction alarm part 52 contacts with the braking surface of the brake drum, thereby prompting that the brake shoe assembly needs to be replaced.
The utility model discloses a bottom plate 2 of brake shoe itself is the stamping workpiece, only needs to set up spacing groove 22 at its tip one-time stamping forming in manufacturing process, realization that can be convenient and alarm body 5's fixed mounting, can not increase the design of mould, the preparation degree of difficulty and cost, conveniently installs simultaneously, through spacing groove 22 holding alarm body 5, rethread rivet 3 suppression riveting can be convenient realization bottom plate 2 and alarm body 5's installation, assembly easy operation, itself has good mistake proofing and spacing effect.
Example 3.
As shown in fig. 6, the present embodiment provides a drum brake having an alarm function, in which the friction surface of the friction material 6 is at least 5mm higher than the free end of the friction alarm portion 52 by using the brake shoe.
Those of ordinary skill in the art will understand that: the discussion of any embodiment above is meant to be exemplary only, and is not intended to intimate that the scope of the disclosure, including the claims, is limited to these examples; within the idea of the invention, also combinations between technical features in the above embodiments or in different embodiments are possible, and there are many other variations of the different aspects of the invention as described above, which are not provided in detail for the sake of brevity. Therefore, any omission, modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included within the protection scope of the present invention.
Claims (6)
1. The utility model provides an alarm, includes the alarm body, its characterized in that, the alarm body includes fixed mounting portion, friction alarm portion, fixed mounting portion, friction alarm portion connect through a crooked connecting portion, the last fixed connection hole of having seted up of fixed mounting portion.
2. The alarm of claim 1, wherein the body is generally plate-shaped.
3. The alarm of claim 2, wherein the alarm body is integrally formed by bending and stamping.
4. A brake shoe is characterized by comprising the alarm device according to any one of claims 1 to 3, a bottom plate for bearing the alarm device and a friction material for friction braking with a braking surface of a brake drum of a drum brake, wherein the bottom plate is provided with riveting holes, a fixed mounting part is attached to the bottom plate and fixed by a rivet penetrating through the fixed connecting holes and the riveting holes, a limiting groove for accommodating a friction alarm part of the alarm device is arranged at the front end of the bottom plate, the friction material is attached to the other side of the bottom plate, and the friction surface of the friction material is higher than the free end of the friction alarm part.
5. The brake shoe according to claim 4, wherein said stopper groove prevents the friction warning portion from swinging left and right in an assembled state, and allows the friction warning portion to swing back and forth within a certain range about the bent connection portion as a fulcrum.
6. A drum brake with alarm function, characterized in that, the brake shoe of claim 4 is used, and the friction surface of the friction material is at least 5mm higher than the free end of the friction alarm part.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023004857.0U CN214304972U (en) | 2020-12-11 | 2020-12-11 | Alarm, brake shoe and drum brake with alarm function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023004857.0U CN214304972U (en) | 2020-12-11 | 2020-12-11 | Alarm, brake shoe and drum brake with alarm function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214304972U true CN214304972U (en) | 2021-09-28 |
Family
ID=77853632
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202023004857.0U Expired - Fee Related CN214304972U (en) | 2020-12-11 | 2020-12-11 | Alarm, brake shoe and drum brake with alarm function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214304972U (en) |
-
2020
- 2020-12-11 CN CN202023004857.0U patent/CN214304972U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20210928 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |