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Moving body and actuating device having the same

A power transmission device and mobile body technology, applied in the field of mobile bodies, can solve the problems of insufficient response to rapid pressure reduction, slow rotation of adjustment pads, and gap formation, etc., to achieve compact structure, prevent swing or vibration, and reduce manufacturing costs Effect

Inactive Publication Date: 2005-11-23
浜インターナショナル
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

As a result, the pad turns slowly, does not respond adequately to the rapid decrease in pressure and creates a gap

Method used

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  • Moving body and actuating device having the same
  • Moving body and actuating device having the same
  • Moving body and actuating device having the same

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0049] Preferred embodiments of the present invention will now be described in detail with reference to the accompanying drawings.

[0050] Figure 1-3 A power transmission device of the screw type according to the invention is shown in . figure 1 and 2 A longitudinal sectional view of the power transmission device A is shown in . image 3 is along figure 1 The cross-sectional view of X-X line shown in ; figure 1 is along image 3 Sectional view of Y-Y line shown in ;

[0051]Such as figure 1 As shown, an external thread portion is formed on the outer circumference of the lead screw 2, and the lead screw 2 is rotated by a driving unit (not shown in the figure). The moving body 4 makes linear and reverse motion along the lead screw 2 . The moving body 4 includes a first nut 6 and a second nut 8, the nuts 6 and 8 are threadedly connected with the external threaded portion of the lead screw 2, and the two nuts engage with each other. With this structure, the moving b...

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PUM

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Abstract

The moving body (4) of an actuating device (A) is capable of automatically and rapidly eliminating clearances between nuts (6, 8) and a leadscrew (2). The moving body (4) comprises: a first nut (6) screwed with the leadscrew (2); a second nut (8) screwed with the leadscrew (2) and engaged with the first nut (6), the second nut (8) being capable of relatively moving to and away from the first nut (6); a wedge member (18) provided between the first nut (6) and the second nut (8); and a biasing member (22) biasing the wedge member (18) so as to increase a distance between the first nut (6) and the second nut (8). The first nut (6) and the second nut (8) are pressed onto the leadscrew (2) by increasing the distance between the first nut (6) and the second nut (8) with the wedge member (18).

Description

technical field [0001] The invention relates to a moving body which is threadedly connected with a screw and moves on the screw, and a power transmission device with the moving body. Background technique [0002] A conventional lead screw type power transmission device includes: a lead screw having an outer peripheral surface on which a guide portion is formed; a nut screwed to the guide portion of the lead screw; A moving body in which the screw linearly moves in reverse. The threaded spindle is then turned by a drive, for example an electric motor. [0003] In the above-mentioned power transmission device, vibration or vibration occurs in the gap between the lead screw and the nut. Therefore, various mechanisms have been employed to prevent such swinging or vibration. [0004] Such as Figure 5 As shown, the moving body 90 has a pair of nuts 92 and 93 , and a biasing member 94 such as a compression spring is telescopically interposed between the nuts 92 and 93 . The nu...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16H25/24B23Q5/40B23Q5/56F16H25/20
CPCF16H25/2006Y10T74/18728F16H25/20
Inventor 滨富夫
Owner 浜インターナショナル