CN219082126U - Low-noise electromagnetic brake based on square wheel and friction plate braking - Google Patents
Low-noise electromagnetic brake based on square wheel and friction plate braking Download PDFInfo
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- CN219082126U CN219082126U CN202320179882.7U CN202320179882U CN219082126U CN 219082126 U CN219082126 U CN 219082126U CN 202320179882 U CN202320179882 U CN 202320179882U CN 219082126 U CN219082126 U CN 219082126U
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Abstract
The utility model discloses a low-noise electromagnetic brake based on square wheel and friction plate braking, which comprises a square wheel, a friction plate and a noise reduction structure arranged between the square wheel and the friction plate, wherein the square wheel is connected with a rotating shaft, the friction plate is sleeved on the outer wall of the square wheel through a central through hole of the friction plate, the noise reduction structure comprises a pressure spring and a ball, one or more square wheel blind holes corresponding to the noise reduction structure one by one are arranged on the outer wall of the square wheel, the pressure spring and the ball are arranged in the corresponding square wheel blind holes, and the opposite sides of the ball are respectively contacted with the corresponding hole wall of the central through hole of the friction plate and one end of the corresponding pressure spring. When the friction plate is used, the square wheel buffers the transmission force through the pressure spring in the process of driving the friction plate to rotate, and meanwhile, the balls are utilized to prop against the friction plate, so that a certain gap is kept between the inner wall of the friction plate and the outer wall of the square wheel as far as possible, the phenomenon of mutual contact collision is reduced, the noise reduction function is realized, the hot riveting process and the high-temperature working environment can be met, and the friction plate is convenient to process, low in cost and convenient to assemble.
Description
Technical Field
The utility model relates to an electromagnetic brake, in particular to a low-noise electromagnetic brake based on square wheel and friction plate braking.
Background
The electromagnetic brake is widely applied, the electromagnetic coil is utilized to absorb the movement of the armature, and the braking function is realized through the contact between the armature or the cover plate and the friction plate. The electromagnetic brake based on square wheel and friction disc braking is an electromagnetic brake which is sleeved outside a rotating shaft and sleeved outside the square wheel, the friction disc is positioned between an armature and a cover plate, the armature is positioned between a stator and the friction disc, an electromagnetic coil is positioned in the stator, the cover plate is connected with the armature, the electromagnetic coil adsorbs the armature when power is supplied, the cover plate is driven to synchronously move towards the stator, braking is realized by contact with the friction disc, a central through hole of the friction disc is a square hole (generally a square hole), the outer wall of the square wheel is also square (generally a square), and therefore anti-rotation (relative rotation between the friction disc and the square wheel) connection can be directly realized between the friction disc and the square wheel.
When the electromagnetic brake based on square wheel and friction disc braking operates, as a gap exists between the friction disc and the square wheel all the time, and the square wheel is a steel piece, collision noise is larger necessarily in the transmission process, in order to reduce transmission noise, two traditional solutions are mainly adopted, namely, an O-shaped ring is added on a spline housing, an adhesive tape is added on the square wheel, and a noise reduction spring is added on a clamp spring and a spline on the square wheel; the former has the disadvantage of: the O-shaped ring is a rubber product, is easy to break and age, and is not suitable for a high Wen Mao pressure press-fitting process; the latter has the disadvantage of: the clamp spring and the noise reduction spring are difficult to process, the rejection rate is high, and the cost is high.
Disclosure of Invention
The present utility model has been made to solve the above problems, and an object of the present utility model is to provide a low-noise electromagnetic brake using square wheel and friction plate braking, which can be adapted to a high-temperature environment and is low in cost.
The utility model realizes the above purpose through the following technical scheme:
the utility model provides a low noise electromagnetic braking ware based on square wheel and friction disc braking, includes square wheel and friction disc, the square wheel is connected with the pivot, the outer wall of square wheel is square, the center through-hole of friction disc is square, the friction disc passes through self center through-hole suit and is in on the outer wall of square wheel, the low noise electromagnetic braking ware based on square wheel and friction disc braking is still including installing square wheel with structure of making an uproar falls between the friction disc, the structure of making an uproar falls includes pressure spring and ball, be equipped with on the outer wall of square wheel with one or more square wheel blind hole of structure one-to-one falls, the pressure spring with the ball is arranged in the square wheel blind hole of correspondence, the opposite both sides of ball respectively with the center through-hole's of friction disc corresponds pore wall and the one end contact of corresponding pressure spring.
Preferably, in order to facilitate assembling the compression spring and the ball to facilitate faster assembly, the noise reduction structure further comprises a noise reduction housing with an opening at one end, the noise reduction housing is installed in the square wheel blind hole, the compression spring and the ball are placed in the noise reduction housing, and the other end of the compression spring is in contact with the inner bottom of the closed end of the noise reduction housing.
Preferably, in order to achieve better noise reduction effect, the number of the blind holes of the square wheel is two (or four), and the blind holes of the square wheel are symmetrically distributed on the outer wall of the square wheel, and correspondingly, the number of the noise reduction structures is two (or four).
The utility model has the beneficial effects that:
according to the utility model, the square wheel blind hole is formed in the square wheel, the pressure spring and the ball are arranged in the square wheel blind hole, the ball props against the inner wall of the friction plate under the action of the elasticity of the pressure spring, so that the square wheel can buffer the driving force through the pressure spring in the process of driving the friction plate to rotate, and meanwhile, the ball props against the friction plate to keep a certain gap between the inner wall of the square wheel and the outer wall of the square wheel as far as possible, so that the phenomenon of mutual contact collision is reduced, and the noise reduction function is realized; because the pressure spring and the steel ball are metal pieces, the noise reduction structure can meet the hot riveting process and the high-temperature working environment, and is convenient to process, low in cost and convenient to assemble.
Drawings
FIG. 1 is a front cross-sectional view of a low noise electromagnetic brake based on square wheel and friction plate braking according to the present utility model;
fig. 2 is an enlarged view of "a" in fig. 1.
Detailed Description
The utility model is further described below with reference to the accompanying drawings:
as shown in fig. 1 and 2, the low-noise electromagnetic brake based on square wheel and friction plate braking according to the present utility model includes a square wheel 7, a friction plate 4, and a noise reduction structure 6 installed between the square wheel 7 and the friction plate 4, where the square wheel 7 is connected with a rotating shaft 8, the outer wall of the square wheel 7 is square, the center through hole of the friction plate 4 is square, the friction plate 4 is sleeved on the outer wall of the square wheel 7 through its center through hole, the noise reduction structure 6 includes a compression spring 63 and a ball 62, one or more square wheel blind holes (not labeled in the figure) corresponding to the noise reduction structure 6 are provided on the outer wall of the square wheel 7, the compression spring 63 and the ball 62 are placed in the corresponding square wheel blind holes, and opposite sides of the ball 62 are respectively contacted with the corresponding hole wall of the center through hole of the friction plate 4 and one end of the corresponding compression spring 63.
Preferably, in order to facilitate assembling the compression spring 63 and the ball 62 first to facilitate faster assembly, the noise reduction structure 6 further includes a noise reduction housing 61 with an opening at one end, the noise reduction housing 61 is installed in the square wheel blind hole, the compression spring 63 and the ball 62 are placed in the noise reduction housing 61, and the other end of the compression spring 63 contacts with the bottom in the closed end of the noise reduction housing 61; in order to achieve better noise reduction effect, the number of the blind holes of the square wheel is two (or four), and the blind holes of the square wheel are symmetrically distributed on the outer wall of the square wheel 7, and correspondingly, the number of the noise reduction structures 6 is two (or four).
Also shown in fig. 1 are stator 5, solenoid 1, armature 3 and cover plate 2, friction plate 4 is located between armature 3 and cover plate 2, armature 3 is located between stator 5 and friction plate 4, solenoid 1 is located within stator 5, cover plate 2 is connected with armature 3.
As shown in fig. 1 and 2, when assembling, the compression spring 63 and the ball 62 are first installed in the noise reduction housing 61 to form a component, the ball can be temporarily sealed by using an adhesive tape or the like to prevent the ball from falling off, then the component is placed in the blind hole of the square wheel, and then the friction plate 4 is sleeved outside the square wheel 7.
When the electromagnetic coil 1 is in a power-off state in use, the armature 3 has a trend of being far away from the stator 5 under the action of a reset pressure spring (not visible in the figure and in a conventional structure), so that a certain gap is kept between the cover plate 2 and the friction plate 4, the square wheel 6 and the rotating shaft 8 can rotate freely, and at the moment, the electromagnetic coil is in a state of releasing braking; when braking is needed, the electromagnetic coil 1 is electrified, electromagnetic attraction is generated to adsorb the armature 3, the cover plate 2 is driven to synchronously move towards the direction close to the stator 5, the cover plate 2 is contacted with the friction plate 4, the square wheel 6 and the rotating shaft 8 are stopped rotating, and a braking function is realized.
The above embodiments are only preferred embodiments of the present utility model, and are not limiting to the technical solutions of the present utility model, and any technical solution that can be implemented on the basis of the above embodiments without inventive effort should be considered as falling within the scope of protection of the patent claims of the present utility model.
Claims (3)
1. The utility model provides a low noise electromagnetic braking ware based on square wheel and friction disc braking, includes square wheel and friction disc, the square wheel is connected with the pivot, the outer wall of square wheel is square, the center through-hole of friction disc is square, the friction disc is in through the center through-hole suit of self on the outer wall of square wheel, its characterized in that: the low-noise electromagnetic brake based on square wheel and friction disc braking is further characterized by comprising a noise reduction structure arranged between the square wheel and the friction disc, the noise reduction structure comprises a pressure spring and a ball, one or more square wheel blind holes corresponding to the noise reduction structure are formed in the outer wall of the square wheel, the pressure spring and the ball are arranged in the corresponding square wheel blind holes, and two opposite sides of the ball are respectively contacted with the corresponding hole wall of the central through hole of the friction disc and one end of the pressure spring.
2. The square wheel and friction plate brake-based low noise electromagnetic brake of claim 1, wherein: the noise reduction structure further comprises a noise reduction shell with one end open, the noise reduction shell is installed in the square wheel blind hole, the pressure spring and the balls are arranged in the noise reduction shell, and the other end of the pressure spring is in contact with the inner bottom of the closed end of the noise reduction shell.
3. The square wheel and friction plate brake-based low noise electromagnetic brake according to claim 1 or 2, characterized in that: the square wheel blind holes are two and symmetrically distributed on the outer wall of the square wheel, and correspondingly, the number of the noise reduction structures is two.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320179882.7U CN219082126U (en) | 2023-02-02 | 2023-02-02 | Low-noise electromagnetic brake based on square wheel and friction plate braking |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320179882.7U CN219082126U (en) | 2023-02-02 | 2023-02-02 | Low-noise electromagnetic brake based on square wheel and friction plate braking |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219082126U true CN219082126U (en) | 2023-05-26 |
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ID=86398178
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320179882.7U Active CN219082126U (en) | 2023-02-02 | 2023-02-02 | Low-noise electromagnetic brake based on square wheel and friction plate braking |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219082126U (en) |
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2023
- 2023-02-02 CN CN202320179882.7U patent/CN219082126U/en active Active
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