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A self-resetting adjustable torque limiter

A self-resetting and unified technology, which is applied in the direction of automatic clutches, clutches, mechanical equipment, etc., can solve the problems of severe heat generation, low reliability, and inability to self-reset of the torque limiter, and achieves low heat generation, high reliability, and structural simple effect

Active Publication Date: 2018-04-27
TAIYUAN INST OF CHINA COAL TECH & ENG GROUP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The present invention provides a self-resetting adjustable torque limiter in order to solve the technical problems of severe heat generation, low reliability, inconvenient maintenance and self-resetting of the existing torque limiter.

Method used

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  • A self-resetting adjustable torque limiter
  • A self-resetting adjustable torque limiter
  • A self-resetting adjustable torque limiter

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Experimental program
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Embodiment Construction

[0025] like figure 1 , 2 As shown, a self-resetting adjustable torque limiter includes a left coupling 1, a rubber elastic body 2, a sleeve 3, a spring assembly and a right coupling 4, and one end of the left coupling 1 passes through the rubber elastic body 2 is connected to one end of the sleeve 3. The rubber elastic body 2 is made of natural rubber material, which not only has the function of transmitting torque, but also has axial elastic deformation. The left coupling 1 and the sleeve 3 are both made of cast steel materials such as figure 1 As shown, the two open ends of the rubber elastic body 2 have outward protrusions, such as Image 6 As shown, the end of the left coupling 1 and the sleeve 3 connected to the rubber elastic body 2 has an inward groove, and the protrusion on the rubber elastic body 2 corresponds to the groove on the left coupling 1 and the sleeve 3 Matching, the rubber elastic body 2 is inserted into the groove of the left coupling 1 and the sleeve 3...

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Abstract

The invention belongs to the technical field of a decelerator of a conveying device for a coal-mining heading machine, and chain overload protection equipment. An automatic restoration adjustable torque limiter is provided to solve technical problems of serve torque limiter heating, poor reliability, inconvenient maintenance and incapability of restoration. The automatic restoration adjustable torque limiter comprises a left coupling, a rubber elastic body, a sleeve cylinder, a spring assembly and a right coupling, wherein one end of the left coupling is connected with one end of the sleeve cylinder via the rubber elastic body; one end of the right coupling is connected with the other end of the sleeve cylinder via a spring assembly; the spring assembly is formed by a spring, an internal rolling ball seat, a rolling ball and an external rolling ball seat; the external rolling ball is fixed in the sleeve cylinder via a thread; the spring and the internal rolling ball are placed in the right coupling; the rolling ball is arranged between the external rolling ball seat and the internal rolling ball seat; a guide arc-shaped groove and a round slot are formed in the internal circle of the sleeve cylinder; and the rolling ball can move between the guiding arc-shaped groove and the round slot. The automatic restoration adjustable torque limiter is simply structured with small size, proper heating, high reliability, easy maintenance and automatic restoration.

Description

technical field [0001] The invention belongs to the technical field of transmission device speed reducers and chain overload protection equipment of coal mining roadheaders, and in particular relates to a self-resetting adjustable torque limiter. Background technique [0002] The friction torque limiter is used between the reducer and the motor of the conveying device of the traditional coal mining roadheader, or a shear pin shaft is installed on the reducer to realize the overload protection of the scraper chain. However, the friction torque limiter is seriously heated, the friction plate is easy to burn, and the reliability is not high; and when the shear pin shaft is installed on the reducer to realize the overload protection of the scraper chain, the pin shaft needs to be replaced continuously, and the maintenance is extremely inconvenient; Hydraulic coupling is an overload protection device commonly used on motors and reducers in underground mines, but its volume is too...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F16D43/20
Inventor 张林慧任晓力靳建徐双用桑盛远杨希高源满子良
Owner TAIYUAN INST OF CHINA COAL TECH & ENG GROUP
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