CN213393225U

CN213393225U - Torque overload protector

Info

Publication number: CN213393225U
Application number: CN202022386336.XU
Authority: CN
Inventors: 曹伟明; 吴秋松; 曹咏
Original assignee: Hunan Haizhixing Technology Co ltd
Current assignee: Hunan Haizhixing Technology Co ltd
Priority date: 2020-10-23
Filing date: 2020-10-23
Publication date: 2021-06-08
Anticipated expiration: 2030-10-23

Abstract

The utility model relates to a mechanical transmission technical field, concretely relates to moment of torsion overload protection ware, including input shaft, output disc, through the moment of torsion pin junction between input shaft and the output disc, be equipped with the spacing bolt that the restriction moment of torsion round pin drops in the radial hole of output disc both sides, the moment of torsion round pin drops when preventing high-speed rotation, sets up on the input shaft and prevents moving back the groove, prevents that the moment of torsion round pin from cutting back input shaft and output shaft and breaking away from. When the working torque exceeds the preset torque range, the torque pin is cut off due to overload, and after the torque pin is cut off due to overload, normal use can be continued only by replacing one torque pin. The utility model discloses simple structure, convenient to use, stability are good, easy maintenance, and can select the moment of torsion round pin of different diameters and different materials according to the size of moment of torsion, use extensively.

Description

Torque overload protector

Technical Field

The utility model relates to a mechanical transmission technical field, concretely relates to moment of torsion overload protection ware.

Background

The torque overload protector, also called torque retainer, over-force protector, torque clutch, axial load overload protector, torque limiter, safety clutch, force limiting clutch, etc. is installed between the driving side and the driven side of power transmission. Common types of protectors include friction torque overload protectors and ball torque overload protectors.

The friction type torque overload protector applies pressure to a friction plate through a spring, when the torque exceeds a set value, friction slip is generated between a driving side and a driven side, overload protection is carried out on a motor, a speed reducer, a gear and the like in a transmission system, but under the condition of long slip time, dust is generated on a friction surface, the conditions of poor wear resistance, poor durability and the like are generated, the stability of a torque limiter is greatly influenced, and the service life of the friction plate is shortened. The ball type torque overload protector is usually internally provided with a precise ball mechanism, once the torque exceeds a set value, the driving side and the driven side are separated, the safety of the protection equipment is ensured, but the driving side and the driven side are directly contacted with the groove through the balls, the ball type torque overload protector is used for a long time, and the resetting precision of the balls and the groove can be attenuated. Friction formula moment of torsion overload protection ware and ball formula moment of torsion overload protection ware all have the structure complicated, the preparation degree of difficulty is big, poor stability, the maintenance degree of difficulty is big scheduling problem, and present moment of torsion overload protection ware is generally customized through professional producer according to actual need moreover, and application scope is little.

Disclosure of Invention

The utility model aims at providing a simple structure, good, the easy maintenance's of stability moment of torsion overload protector.

The utility model discloses an adopt following technical scheme to realize its purpose of inventing, a moment of torsion overload protection ware, including input shaft, output disc, input shaft one end be the flange face, conveniently be connected with power equipment such as engine, motor, the other end stretch into output disc axial hole in with the one end of output disc be connected, the other end of output disc be the flange face, conveniently be connected with transmission equipment, the input shaft with the output disc between through the moment of torsion round pin connection, the input shaft with the output disc radially all be equipped with radial hole, the moment of torsion round pin through radial hole connection the output disc with the input shaft.

In order to prevent that moment of torsion round pin from droing when moment of torsion overload protector is high-speed rotatory, the utility model discloses a radial downthehole spacing bolt that restriction moment of torsion round pin droed that is equipped with of output dish both sides.

Preferably, the size of the radial hole of the input shaft is consistent with the size of the radial hole of the output disc.

In order to prevent the torque overload torque pin from breaking away from the output disc after being sheared off and avoid damage of transmission equipment, one end of the input shaft contacting with the output disc is provided with an annular anti-withdrawal groove, the output disc is provided with a through hole in the radial direction, the through hole is internally provided with an internal thread, and the through hole is connected with the annular anti-withdrawal groove through an anti-withdrawal screw.

Preferably, the anti-back screw is a convex-end headless screw, the threaded end of the convex-end headless screw is in threaded connection with the through hole, and the convex end can be in sliding connection around the annular anti-back groove.

By adopting the technical scheme, the utility model discloses realized invention purpose better, through adopting the moment of torsion round pin to connect input shaft and output disc, realize driving power and transmission equipment's connection, through set up spacing bolt in the radial hole of output disc both sides to restrict the drop of moment of torsion round pin when the moment of torsion overload protector is rotatory at a high speed, through the annular that input shaft and output disc contact one end set up prevent moving back the groove, prevent that the moment of torsion round pin breaks off the back input shaft from the output disc; when the working torque exceeds the preset torque range, the torque pin is cut off due to overload, and after the torque pin is cut off due to overload, normal use can be continued only by replacing one torque pin. The utility model discloses simple structure, convenient to use, stability are good, easy maintenance, and can select the moment of torsion round pin of different diameters and different materials according to the size of moment of torsion, use extensively.

Drawings

FIG. 1 is a schematic structural view of the present invention;

fig. 2 is a cross-sectional view of the present invention.

In the figure: 1 is the input shaft, 2 is the output dish, 3 is the moment of torsion round pin, 4 is spacing bolt, 5 prevents moving back the screw, 6 is annular prevents moving back the groove.

Detailed Description

The present invention will be further explained with reference to the drawings and the embodiments.

As can be known from figures 1 and 2, a torque overload protector comprises an input shaft 1 and an output disc 2, wherein one end of the input shaft 1 is a flange surface and is conveniently connected with various power equipment such as an engine and a motor, the other end of the input shaft extends into an axial hole of the output disc 2 and is connected with one end of the output disc 2, the other end of the output disc 2 is also a flange surface and is conveniently connected with transmission equipment, the input shaft 1 is connected with the output disc 2 through a torque pin 3, radial holes with the same size are radially arranged on the input shaft 1 and the output disc 2, the torque pin 3 penetrates into the radial hole on one side of the output disc 2, penetrates through the radial hole on the input shaft 1 and penetrates out through the radial hole on the other side of the output disc 2. The radial holes on the two sides of the output disc 2 are internally provided with limiting bolts 4 for limiting the falling of the torque pins 3, the limiting bolts 4 are screwed in from the two ends of the radial holes of the output disc 2 to fix the torque pins 3, and the torque overload protector can limit the falling of the torque pins 3 when rotating at a high speed. The input shaft 1 is equipped with the annular on one end with output dish 2 contact and prevents moving back groove 6, output dish 2 is equipped with the through-hole radially, is equipped with the internal thread in the through-hole, through-hole and annular prevent moving back between the groove 6 and be connected through preventing moving back screw 5, prevent moving back screw 5 and be protruding end headless screw, prevent moving back the threaded end of screw 5 and the internal thread connection of through-hole, the protruding end can be around the annular prevent moving back 6 sliding connection in groove to prevent that moment of torsion overload moment round pin from cutting off back input shaft 1 and from breaking away from in output dish 2, avoid transmission impaired.

The utility model discloses a moment of torsion round pin is the lower aluminium of hardness or copper material, can not harm input shaft 1 and output disc 2, can also select the moment of torsion round pin 3 of different diameters according to the needs of predetermined moment of torsion size, enlarges the range of application to satisfy different application needs.

The utility model discloses the during operation, the flange end and the drive arrangement of output dish 2 are connected, and the flange end and the transmission arrangement of input shaft 1 are connected, and input shaft 1 drives output dish 2 through moment of torsion round pin 3 and rotates, drives the transmission arrangement operation. When the working torque exceeds the preset torque range, the torque pin 3 is cut off due to overload, the protruding end of the anti-back screw 5 slides around the annular anti-back groove 6, the input shaft 1 and the output disc 2 can be prevented from being separated, the input shaft 1 idles in the output disc 2, the rotation force is not transmitted to the output disc 2 and the transmission equipment, the transmission equipment is protected, and after the torque pin 3 is cut off due to overload, only one torque pin 3 needs to be replaced, and the torque overload protector can be continuously and normally used.

The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modifications, equivalents, improvements and the like made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.

Claims

1. The utility model provides a moment of torsion overload protection ware, includes input shaft, output dish, input shaft one end be the flange face, the other end stretches into output dish axial hole in with the one end of output dish be connected, the other end of output dish be the flange face, its characterized in that, the input shaft with the output dish between through the moment of torsion round pin connection, the input shaft with the output dish radially all be equipped with radial hole, the moment of torsion round pin through radial hole connection the output dish with the input shaft.

2. The torque overload protector according to claim 1, wherein the radial holes on both sides of the output disc are provided with limit bolts for limiting the falling of the torque pins.

3. The torque overload protector according to claim 1, wherein the radial bore of the input shaft is sized to correspond to the radial bore of the output disc.

4. The torque overload protector according to claim 2, wherein the radial bore of the input shaft is sized to correspond to the radial bore of the output disc.

5. The torque overload protector according to claim 1, 2, 3 or 4, wherein the end of the input shaft contacting the output disc is provided with an annular anti-back groove, the output disc is provided with a through hole in the radial direction, the through hole is provided with an internal thread, and the through hole is connected with the annular anti-back groove through an anti-back screw.

6. The torque overload protector according to claim 5, wherein the anti-back-off screw is a male headless screw, the threaded end of the male headless screw being threadedly engaged with the through-hole, the male end being slidably engaged around the annular anti-back-off groove.