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Double-nut spiral transmission device capable of realizing uniform loading

A screw drive, double nut technology, applied in the direction of transmission, belt/chain/gear, mechanical equipment, etc., can solve the problem of not improving the service life of a single nut

Pending Publication Date: 2021-09-14
SICHUAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The disadvantage of this invention is that there is still only one nut that bears the load each time, and the nut still needs to be replaced after the secondary nut fails, which does not improve the service life of a single nut

Method used

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  • Double-nut spiral transmission device capable of realizing uniform loading
  • Double-nut spiral transmission device capable of realizing uniform loading
  • Double-nut spiral transmission device capable of realizing uniform loading

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Embodiment Construction

[0021] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0022] see Figure 1 to Figure 9 , the present invention provides a double-nut screw transmission device that can realize load balancing, and its structure includes a screw rod 1, a first thrust ball bearing 2, a first piston 3, a first hydraulic cylinder 4, a first nut 5, a hose 6, The sleeve 7, the second thrust ball bearing 8, the second piston 9, the second hydraulic cylinder 10, the second nut 11, and the bearing platform 12 are characterized in that: the...

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Abstract

A double-nut spiral transmission device capable of achieving uniform loading structurally comprises a screw 1, a first thrust ball bearing 2, a first piston 3, a first hydraulic cylinder 4, a first nut 5, a hose 6, a sleeve 7, a second thrust ball bearing 8, a second piston 9, a second hydraulic cylinder 10, a second nut 11 and a bearing platform 12, wherein the first nut 5 and the second nut 11 are connected with the screw rod 1 through thread pairs, the sleeve 7 is matched with the first nut 5 and the second nut 11 through key structures 71, and the bearing platform 12 is placed on the first thrust ball bearing 2 and the second thrust ball bearing 8. According to the double-nut spiral transmission device, the problem that the two nuts generate axial relative displacement can be solved, simultaneous loading of the two nuts is achieved through two hydraulic cylinders, the difference of loads borne by the two nuts is extremely small, the load borne by the single nut is effectively reduced, and the service life of the single nut is prolonged.

Description

technical field [0001] The invention relates to the field of screw transmission, in particular to a double-nut screw transmission device capable of realizing load balancing. Background technique [0002] Nut screw is the basic transmission mechanism commonly used in mechanical equipment. When the general nut screw mechanism is transmitting, only one nut is used for transmission of a screw, and a single nut bears the load. After the nut moves back and forth on the screw for a long time, the nut is more worn than the screw. If it is not used for a long time, there will be problems such as slippage and damage, which will cause the entire machine or equipment to stop, and sometimes even cause or cause safety accidents. In order to reduce the wear of the nut, it is easier to think of a way to increase the length of the nut, but since the thread of the nut is mainly stressed when the nut and the screw are engaged, increasing the length of the nut does not increase the number of tu...

Claims

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Application Information

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IPC IPC(8): F16H25/24F16H25/20
CPCF16H25/24F16H25/20
Inventor 李华韩鑫姚进
Owner SICHUAN UNIV
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