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Self-adjustment connecting device and screw-nut transmission device using same

A technology of connecting device, screw and nut, applied in the direction of transmission device, belt/chain/gear, mechanical equipment, etc., can solve the problems of jamming transmission movement, large fluctuation of speed change, failure, etc., to solve the jamming problem Effect

Active Publication Date: 2012-11-21
HENAN WEIHUA HEAVY MACHINE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, when the slender shaft parts rotate, due to the structural characteristics of the slender shaft itself or the large fluctuations in its rotational speed, the slender shaft parts will experience radial displacement fluctuations. It will have an impact on the operating performance of the mechanism, especially when the slender screw parts are connected with the connected parts through the connecting seat to realize the axial movement of the connected parts along the screw shaft, the screw will be in the middle of its two supports. Larger downward deflection (radial displacement), because the connecting seats on the market are all set in one piece, during the working process, the connecting seat is fixed on the inserted tongue, when the connecting seat moves to the middle part of the screw, Due to the excessive axial displacement of the screw, jamming may occur and the transmission motion will fail

Method used

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  • Self-adjustment connecting device and screw-nut transmission device using same
  • Self-adjustment connecting device and screw-nut transmission device using same
  • Self-adjustment connecting device and screw-nut transmission device using same

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] Example 1, such as figure 1 , figure 2 and image 3 As shown, the self-adjusting connection device of the present invention includes a base 1 and a screw nut fixing seat 2 arranged on the base. The base 1 is a boss with a flange at one end, and the base is provided with a base for fixing the base on the connected device. The flange hole 3 on the top and the screw nut fixing seat 2 are provided with a screw nut 4. The screw nut 4 is used to cooperate with the rotation of the screw to convert the rotation of the screw into the movement of the connected device along the axial direction of the screw. The female holder 2 is provided with a tongue 5, the cross section of the tongue 5 is rectangular, the base 1 is provided with a socket 6, and the socket 6 is a rectangular groove, of course the tongue 5 can also be arranged on the base, and the socket 6 can be set On the screw nut fixing seat 2, the tongue 5 and the socket 6 slide and fit in the radial direction of the lead...

Embodiment 2

[0023] Example 2, such as Figure 4 As shown, the difference between this embodiment and Embodiment 1 is that the socket is provided with a through groove along the direction perpendicular to the axis of the lead screw nut 4 .

[0024] The cross-section of the tongue 5 in the above-mentioned embodiments can also be circular, or the cross-section of the tongue 5 only at the place where it cooperates with the socket 6 is circular or rectangular; The vertical two sides are set as circular arcs or the like.

[0025] like Figure 5 As shown, the present invention uses a new type of screw nut transmission device, including a screw 7, a screw nut 4 and a connecting device, the screw 7 is used for transmission connection with the driving device, and the connecting device is used for connecting with the dragged mechanism , the connecting device is the above-mentioned self-adjusting connecting device, and the screw nut 4 is arranged on the screw nut fixing seat 2 .

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PUM

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Abstract

The invention discloses a self-adjustment connecting device and a screw-nut transmission device using the same. The self-adjustment connecting device comprises a base and a nut fixing seat, wherein the nut fixing seat is used for fixing the screw nut; a floating insertion structure is arranged between the nut fixing seat and the base; the floating direction of the floating insertion structure is perpendicular to the axial direction of the screw nut; and the base and the nut form a drag fit in the axial direction of the screw nut through the floating insertion structure. In the invention, the traditional integrated connecting seat is separately arranged, so that the nut fixing seat can slide in the radial direction of the screw nut relative to the base. In the working process, when the elongated screw shifts in the radial direction, the nut fixing seat which is rotatably matched with the screw can move in the preset direction relative to the base, thereby solving the problem of clamping in the elongated screw transmission process.

Description

technical field [0001] The invention relates to the field of screw transmission, in particular to a self-adjusting connection device and a screw nut transmission device using the device. Background technique [0002] When converting the rotary motion of the lead screw into the movement of the mechanism along the axial direction of the lead screw, a connecting seat is required. The connecting seat includes a screw nut fixing seat and a base. There are screw nuts for the screw to be screwed in, and the base is provided with a flange for fixing the connecting seat to the connected parts; during the working process, the screw is screwed in and passes through the screw nut, and the connecting seat is fixed by the base on the connected part. However, when the slender shaft parts rotate, due to the structural characteristics of the slender shaft itself or the large fluctuations in its rotational speed, the slender shaft parts will have radial displacement fluctuations. It will ha...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F16H25/20F16H25/24
Inventor 崔鹏浮志强刘新波
Owner HENAN WEIHUA HEAVY MACHINE