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Torque restrictor

A limiter and torque transmission technology, applied in clutches, automatic clutches, mechanical equipment, etc., can solve problems such as inconsistent hardening, low stamping accuracy, and difficulty in ensuring accuracy

Inactive Publication Date: 2016-07-20
SANDEN HUAYU AUTOMOTIVE AIR CONDITIONING CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The problems in the above technical solution are: the neck part can be formed by stamping or powder metallurgy. If the stamping method is used, the stamping precision is low, and there are fracture zones and extrusion zones on the incision of the neck part. The size of the torque limiter is unstable, the degree of hardening of the material after stamping is inconsistent, and the mold requirements are high, so the breaking torque of the torque limiter is unstable and the accuracy is difficult to guarantee

Method used

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Examples

Experimental program
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Embodiment 1

[0031] Such as figure 1 , figure 2 As shown, a main shaft 3 is rotatably installed inside the front cover 1 of the compressor through a bearing 2 , and a pulley 40 is rotatably supported outside the front cover 1 through the bearing 2 . A buffer member 41 is connected to the pulley 40 through a rivet 42 on the outer periphery. The buffer member 41 includes an outer ring 43 , an inner ring 44 , and rubber 39 filled between the two rings 43 , 44 . The outer ring 43 has an outer casing portion 431 extending axially and an outer flange portion 432 extending radially outward, and the outer flange portion 432 of the outer ring 43 is provided with a rivet hole 43A. The inner ring 44 has an axially extending inner sleeve portion 441 and an inner flange portion 442 extending radially inward. The inner flange portion 442 and the hub 50 on its inner peripheral side are fixed by welding, threaded connection, etc. or directly fabricated One. The inner side of the hub 50 is provided wit...

Embodiment 2

[0038] This embodiment follows the component numbers and part of the content of the previous embodiments, wherein the same numbers are used to denote the same or similar components, and descriptions of the same technical content are selectively omitted. For the description of the omitted part, reference may be made to the foregoing embodiment 1, and the present embodiment will not be repeated.

[0039] Part of the material is removed from the inner flange portion 442 of the inner ring 44 to form a plurality of arc-shaped elongated openings 44A. The removal method may be stamping, and a connecting arm 45 is formed between two adjacent openings 44A. At the same position in the radial direction, each connecting arm 45 is provided with a stress concentration part with the narrowest cross section, which constitutes a first cutting part 45A. A groove 47 is cut on the radially inner side of the first cut portion 45A on the connecting arm 45 , so that the thickness of the portion havi...

Embodiment 3

[0045] This embodiment follows the component numbers and part of the content of the previous embodiments, wherein the same numbers are used to denote the same or similar components, and descriptions of the same technical content are selectively omitted. For the description of the omitted part, reference may be made to the foregoing embodiment 1, and the present embodiment will not be repeated.

[0046] Part of the material is removed from the inner flange portion 442 of the inner ring 44 to form a plurality of arc-shaped elongated openings 44A. The removal method may be stamping, and a connecting arm 45 is formed between two adjacent openings 44A. At the same position in the radial direction, each connecting arm 45 is provided with a stress concentration part with the narrowest cross section, which constitutes a first cutting part 45A. Such as Figure 6 Shown is the ring groove 48 formed on the outer peripheral surface of the hub 50. The position of the ring groove 48 is adja...

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PUM

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Abstract

The object of the invention is to provide a torque restrictor. According to the torque restrictor, the reliability of torque restriction is enhanced. The torque restrictor provided for achieving the object is provided with a driving side rotation part, a driven side rotation part and a torque transmission component which is arranged between the driving side rotation part and the driven side rotation part. The torque transmission component comprises a buffering part and a first cut-off part. The buffering part has the function for absorbing torque change impact, and the first cut-off part can be cut off during overload. The torque restrictor has the characteristic that the torque transmission component further comprises a second cut-off part arranged on the inner side of the radial direction of the first cut-off part.

Description

technical field [0001] The present invention relates to a torque limiter for limiting transmission torque in a power transmission device to avoid load overload, in particular to a torque limiter for the drive side of a compressor for an automobile air conditioner. Background technique [0002] Torque limiters are used in many applications, such as in the power transmission path of automobile engines and compressors used in air conditioning. A typical externally controlled variable displacement compressor has a swash plate supported obliquely on the main shaft, and the angle of the swash plate can be changed by the electric control valve of the compressor. When the internal failure of the externally controlled variable displacement compressor increases the torque, the excessive torque will have a great impact on the engine. Therefore, the compressor must have an overload protection mechanism, so that when the internal torque of the compressor is too large, the compressor is ...

Claims

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Application Information

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IPC IPC(8): F16D43/20
Inventor 樊灵
Owner SANDEN HUAYU AUTOMOTIVE AIR CONDITIONING CO LTD
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