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Cooling type ball screw device capable of being used for multi-thread opening circulation

A ball screw and cooling technology, which is applied in the direction of transmission, transmission parts, gear lubrication/cooling, etc., can solve the problem that the cooling cycle structure of multi-thread ball screw needs to be developed urgently, and achieve the effect of improving machining accuracy and machining efficiency

Active Publication Date: 2020-07-03
HIWIN TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Obviously, the cooling cycle structure of the multi-threaded ball screw needs to be developed urgently

Method used

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  • Cooling type ball screw device capable of being used for multi-thread opening circulation
  • Cooling type ball screw device capable of being used for multi-thread opening circulation
  • Cooling type ball screw device capable of being used for multi-thread opening circulation

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Embodiment Construction

[0021] The present invention will be described in detail below in conjunction with the accompanying drawings and embodiments.

[0022] refer to Figure 1 to Figure 4 , an embodiment of the cooling ball screw device that can be used for multi-thread circulation in the present invention includes a screw 10 , a nut unit 20 and a cooling bridging unit 30 . The embodiment of the present invention is described with a ball screw device with two teeth, but it can also be three teeth or four teeth (not shown in the figure).

[0023] The screw 10 extends along an axis L and has an outer peripheral surface 11 and two external threaded portions 12 spirally wound around the outer peripheral surface 11 .

[0024] The nut unit 20 is screwed on the screw 10 through two ball sets 40 , and includes a nut body 21 , and two return channel groups arranged on the nut body 21 corresponding to the external thread portion 12 22, and a cooling passage group 23 provided on the nut body 21.

[0025] T...

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PUM

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Abstract

A cooling type ball screw device capable of being used for multi-thread opening circulation comprises a screw rod, a nut unit and at least one cooling bridging unit. The screw rod is provided with a plurality of outer lead thread parts, the nut unit is screwed on the screw rod through a plurality of ball groups and comprises two end parts, a plurality of backflow channel groups and a cooling channel group, each backflow channel group is provided with an inner lead thread part, an axial through hole and two circulating end pieces, one axial through hole is arranged between two cooling flow channels which are arranged at an interval around the axis of the cooling channel group, and the cooling bridging unit comprises a bridging piece; and the bridging piece is provided with a bridging main body and two connecting pipes connected with the bridging main body, and the bridging main body corresponds to one circulating end piece and spans between the two cooling flow channels. By means of thearrangement of the cooling bridging unit, the device can be suitable for a multi-thread opening ball screw rod, and the cooling purpose can be achieved.

Description

technical field [0001] The invention relates to a cooling type ball screw, in particular to a cooling type ball screw device which can be used for multi-thread circulation. Background technique [0002] There is a ball screw with double teeth (China Taiwan Patent No. M467770). The ball screw has two ball circulation channels that are independent and circulate for two ball groups. Each ball circulation channel includes a set A track groove on the outer surface of the screw, an inner ball groove arranged on an inner peripheral surface of a nut body, a return channel arranged between the inner peripheral surface of the body and an outer peripheral surface, and two The end circulation end pieces on both sides of the nut body, each of the end circulation end pieces has a return flow bend communicated with the return flow channel and the inner ball groove. This kind of ball screw with double teeth does not have a cooling channel design. When the ball screw is running, it is easy ...

Claims

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Application Information

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IPC IPC(8): F16H25/22F16H57/04
CPCF16H25/2204F16H57/0417F16H57/0497
Inventor 庄裕纬甘嘉伦
Owner HIWIN TECH
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