Compound screw

A technology of screw and screw shaft, which is applied in the field of compound screw, can solve the problems of large screw noise and vibration, and achieve the effects of reducing axial vibration and noise, reliable fixation, and noise reduction

Pending Publication Date: 2020-04-28
SHENZHEN SHENGSHI ELEVATOR CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The transmission screw rods in the prior art are mostly made of steel or aluminum alloy materials, and when the screw rods work, they generate relatively large noise and vibration

Method used

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  • Compound screw
  • Compound screw
  • Compound screw

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Embodiment Construction

[0028] Below, the present invention will be further described in conjunction with the accompanying drawings and specific implementation methods. It should be noted that, under the premise of not conflicting, the various embodiments described below or the technical features can be combined arbitrarily to form new embodiments. .

[0029] Such as Figure 1-9 The composite screw shown includes a mandrel 10 and a helical sleeve 20 sleeved on the mandrel 10. The mandrel 10 includes a body part 11 and a connection part 12 arranged in the middle of the body part 11. The connection part 12 includes a plurality of The first protrusion 121 provided in the circumferential direction of the body part 11, the outer surface of the first protrusion 121 is provided with a plurality of first notches 122 along its length direction, and the screw sleeve 20 is provided with a shaft that is loosely fitted with the connecting part 12. A buffer rubber sleeve 30 is filled between the hole 21, the shaf...

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Abstract

The invention discloses a compound screw comprising a core shaft and a spiral shaft sleeve arranged on the core shaft in a sleeving manner. The core shaft comprises a body part and a connection part arranged on the middle portion of the body part. The connection part comprises multiple first protrusions arranged in the circumferential direction of the body part. Multiple first notches formed in the length direction of the first protrusion are formed in the outer side face of each first protrusion. The spiral shaft sleeve is provided with a shaft hole in clearance fit with the connection part.A buffer rubber sleeve is arranged between the shaft hole and the connection part in a filling manner. The buffer rubber sleeve comprises a main rubber sleeve matched with the peripheral face of the connection part and the inner side face of the shaft hole and two side rubber sleeves arranged at the two ends of the main rubber sleeve correspondingly and matched with the end faces of the connectionpart. The buffer rubber sleeve of the compound screw can absorb impact and vibration which are generated by movement, a buffering and noise reduction effect is achieved, and the transmission efficiency and the structure reliability are improved.

Description

technical field [0001] The invention relates to the technical field of mechanical transmission, in particular to a compound screw. Background technique [0002] The screw transmission is a mechanical transmission that realizes the conversion between rotary motion and linear motion by screwing the screw and the thread surface. The transmission screw rods in the prior art are mostly made of steel or aluminum alloy materials, which generate relatively large noise and vibration when the screw rods are in operation. Therefore, it is necessary to develop a compound screw capable of reducing noise and vibration. Contents of the invention [0003] In order to overcome the deficiencies of the prior art, the object of the present invention is to provide a compound screw whose buffer rubber sleeve can absorb the impact and vibration generated by the movement, play the role of buffer and noise reduction, and improve the transmission efficiency and structural reliability . [0004] ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16H25/24F16H57/00F16F15/126
CPCF16F15/126F16H25/24F16H57/0006
Inventor 金徐凯梁超林陈江李洪涛
Owner SHENZHEN SHENGSHI ELEVATOR CO LTD
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