阅读说明：本技术 自锁制动器 (Self-locking brake ) 是由 张基 郭磊 李延杰 张道林 吴昊 鲁浩 喻宇福 林政康 谢浩 于 2020-05-22 设计创作，主要内容包括：本发明公开了一种自锁制动器,包括电磁释放机构、自锁爪和轴套；电磁释放机构包括电磁铁和第一弹簧,第一弹簧设于电磁铁与自锁爪之间,电磁铁在断电时通过第一弹簧可将自锁爪弹向轴套,使自锁爪抱住轴套。该自锁制动器目的是解决现有制动器综合性能差的问题。(The invention discloses a self-locking brake, which comprises an electromagnetic release mechanism, a self-locking claw and a shaft sleeve, wherein the electromagnetic release mechanism is arranged on the shaft sleeve; the electromagnetic release mechanism comprises an electromagnet and a first spring, the first spring is arranged between the electromagnet and the self-locking claw, and the electromagnet can bounce the self-locking claw to the shaft sleeve through the first spring when the electromagnet is powered off, so that the shaft sleeve is embraced by the self-locking claw. The self-locking brake aims to solve the problem that the existing brake is poor in comprehensive performance.)

1. A self-locking brake is characterized by comprising an electromagnetic release mechanism, a self-locking claw and a shaft sleeve; the electromagnetic release mechanism comprises an electromagnet and a first spring, the first spring is arranged between the electromagnet and the self-locking claw, and the electromagnet can eject the self-locking claw to the shaft sleeve through the first spring when the power is off, so that the shaft sleeve is embraced by the self-locking claw.

2. The self-locking brake of claim 1, further comprising a bottom plate and a housing, wherein the housing is covered on the bottom plate, the self-locking pawl is in a pawl shape, the self-locking pawl comprises a pawl tip section, a middle section and a connecting section which are sequentially connected, and the connecting section is movably connected to the inner wall of the housing.

3. The self-locking brake of claim 2, wherein the inner surface of the prong segments is provided with saw-tooth striations.

4. The self-locking brake of claim 2, wherein the angle formed between the prong segment and the intermediate segment is greater than 90 °, and the angle opens inward.

5. The self-locking brake of claim 2, further comprising a flexible adjustment mechanism, wherein the flexible adjustment mechanism comprises a second spring and a connecting block, one end of the self-locking pawl is movably connected with the inner wall of the housing through the connecting block, and the second spring is arranged between the connecting block and the inner wall of the housing in a compressed state.

6. The self-locking brake of claim 5, wherein the housing comprises a first baffle and a connecting block extending hole formed in the first baffle, the connecting block extends through the connecting block extending hole and is connected to the connecting section, and the second spring is disposed in a compressed state between the connecting block and the first baffle.

7. The self-locking brake of claim 5, wherein the housing further comprises a fixing hole, a stepped hole and a spring limiting hole, the positioning hole is used for mounting the electromagnet, the stepped hole is used for mounting the shaft sleeve, and the spring limiting hole is used for mounting the second spring.

8. The self-locking brake of claim 5, wherein the flexible adjustment mechanism further comprises an adjustment screw for adjusting the magnitude of the spring force of the second spring.

9. The self-locking brake of claim 8, wherein the connecting block comprises a second baffle and a second spring limiting hole formed in the second baffle, one end of the adjusting screw contacts the second baffle, and the second spring limiting hole is used for mounting the second spring.

10. The self-locking brake of any one of claims 1 to 9, wherein the number of the self-locking claws is two, and the self-locking claws are symmetrically distributed, and the shaft sleeve is arranged between the two self-locking claws.

Technical Field

The invention belongs to the technical field of braking of machine equipment, and particularly relates to a self-locking brake.

Background

Most of the existing machine equipment is provided with a brake so as to ensure that the machine equipment stops working completely in the shortest time when an accident happens. The brake mainly comprises an electromagnetic brake and a hydraulic brake, and the electromagnetic brake has small braking torque, poor braking effect and low braking speed. The hydraulic brake has good braking effect but larger volume. With the random increase of the types of machine equipment, the requirements on the brake are higher and higher, the braking effect is ensured, the braking speed is also ensured, in addition, the volume requirement on the brake is more strict, and the traditional brake is gradually difficult to meet the machine requirements.

The invention provides a self-locking brake, aiming at solving the problem of poor comprehensive performance of the existing brake.

Disclosure of Invention

Technical problem to be solved

The invention aims to solve the technical problem that the existing brake has poor comprehensive performance.

(II) technical scheme

The invention provides a self-locking brake, which comprises an electromagnetic release mechanism, a self-locking claw and a shaft sleeve, wherein the electromagnetic release mechanism is arranged on the shaft sleeve; the electromagnetic release mechanism comprises an electromagnet and a first spring, the first spring is arranged between the electromagnet and the self-locking claw, and the electromagnet can eject the self-locking claw to the shaft sleeve through the first spring when the power is off, so that the shaft sleeve is embraced by the self-locking claw.

Optionally, the auto-lock stopper still includes bottom plate and shell, the shell cover is established on the bottom plate, the auto-lock claw is the claw form, the auto-lock claw is including claw point section, interlude and the linkage segment that connects gradually, linkage segment swing joint be in on the inner wall of shell.

Optionally, the inner surface of the claw tip section is provided with sawtooth stripes.

Optionally, an included angle formed between the claw tip section and the middle section is larger than 90 degrees, and the opening of the included angle is inward.

Optionally, the self-locking brake further comprises a flexible adjusting mechanism, the flexible adjusting mechanism comprises a second spring and a connecting block, one end of the self-locking claw is movably connected with the inner wall of the shell through the connecting block, and the second spring is arranged between the connecting block and the inner wall of the shell in a compressed state.

Optionally, the housing includes a first baffle and a connecting block extending hole formed in the first baffle, the connecting block extends through the connecting block extending hole and is connected to the connecting section, and the second spring is disposed in a compressed state between the connecting block and the first baffle.

Optionally, the housing further includes a fixing hole, a stepped hole and a spring limiting hole, the positioning hole is used for installing the electromagnet, the stepped hole is used for installing the shaft sleeve, and the spring limiting hole is used for installing the second spring.

Optionally, the flexible adjusting mechanism further includes an adjusting screw, and the adjusting screw is used for adjusting the elastic force of the second spring.

Optionally, the connecting block includes a second baffle and a second spring limiting hole formed in the second baffle, one end of the adjusting screw contacts with the second baffle, and the second spring limiting hole is used for installing the second spring.

Optionally, the number of the self-locking claws is two, the self-locking claws are symmetrically distributed, and the shaft sleeve is arranged between the two self-locking claws.

(III) advantageous effects

The technical scheme of the invention has the following advantages:

under the condition of power failure of the self-locking brake provided by the invention, the electromagnetic release mechanism rapidly springs the self-locking claw to the shaft sleeve of the rotating shaft, the electromagnetic release mechanism provides initial pressure for the self-locking claw, the rotating shaft generates friction force under the influence of the pressure, the friction force enables the self-locking claw to rotate around the self-locking claw connecting part and is influenced by the shape of the self-locking claw, the contact part of the self-locking claw and the shaft sleeve is an inclined surface, the friction force drives the self-locking claw to rotate, meanwhile, pressure is generated at the position, and a part of the pressure is converted into the friction force. Therefore, the friction force and the pressure are gradually increased to form a self-locking effect, and the rotating shaft can be stopped in a very short time.

Drawings

Fig. 1 is a schematic view of an internal structure of a self-locking brake according to an embodiment of the present invention;

fig. 2 is a schematic structural view of a self-locking claw in the self-locking brake provided by the embodiment of the invention;

FIG. 3 is a schematic structural diagram of a connecting block in the self-locking brake according to an embodiment of the present invention;

FIG. 4 is a schematic view of the overall structure of the self-locking brake according to the embodiment of the present invention;

fig. 5 is a schematic structural diagram of a housing in the self-locking brake according to an embodiment of the present invention.

In the figure: 1. a base plate; 2. a housing; 21. a fixing hole; 22. a stepped hole; 23. a first spring limiting hole; 24. the connecting block extends out of the hole; 25. a first baffle plate; 3. connecting blocks; 31. a second spring limiting hole; 32. a second baffle; 4. a second spring; 5. a self-locking claw; 51. a claw tip section; 511. saw-tooth stripes; 52. a middle section; 53. a connecting section; 6. an electromagnet; 61. an armature; 7. a first spring; 8. a shaft sleeve; 81. a keyway; 9. and adjusting the screw.

Detailed Description

The following detailed description of embodiments of the present invention is provided in connection with the accompanying drawings and examples. The following examples are intended to illustrate the invention but are not intended to limit the scope of the invention.