Ball screw with backflow element
A ball screw and component technology, applied in belts/chains/gears, mechanical equipment, transmissions, etc., can solve the problems of aging of the chain 60, affecting the smoothness of the chain, breakage, etc., and achieve smooth entry into the load path or return path. Effect
Active Publication Date: 2012-01-11
HIWIN TECH
View PDF4 Cites 0 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
[0003] However, there is a problem with this design. The chain 61 needs to be twisted about 90 degrees in the joint flow channel 54, so the chain 61 needs to be twisted in a very short distance. After twisting once, it will cause the chain 60 to age rapidly and break, and when twisted, the chain 61 will rub against the guide groove 57 and affect the smoothness of the chain operation; It is still not applicable, so there is still a need for improvement
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment Construction
[0067] See first figure 1 , Figure 2A , 2B , Figure 3 to Figure 6 As shown, the present invention is a ball screw with a return element, comprising:
[0068] A shaft 1, the outer edge of which is provided with a spiral rolling groove 11, and a crest 111 is formed between the rolling grooves 11;
[0069] A nut 2, which is provided with a perforation 22 for the rod shaft 1 to be sleeved, the inner edge of the perforation 22 is provided with a rolling groove (not shown in the figure) opposite to the rolling groove 11, the rolling groove is helical, the rolling groove There is a crest (not shown in the figure) between the grooves, the rod shaft 1 and the crest of the nut 2 form a guiding space (not shown in the figure), and the rolling groove 11 and the rolling groove form a load path (figure not shown), and the outer edge of the nut 2 is provided with a mounting groove 21 communicating with the through hole 22;
[0070] The rolling module 4 includes a chain 41 and a plura...
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More PUM
Login to View More Abstract
The invention provides a ball screw with a backflow element, and is applied to the ball screw with a rolling module. The rolling module comprises a chain and a plurality of rolling pieces, wherein the backflow element is provided with a backflow channel. The backflow channel sequentially comprises a jointing flow channel, a bent flow channel, a middle flow channel, a bent flow channel and a jointing flow channel, wherein the inner diameter of the jointing flow channel is larger than the diameter of the rolling pieces and is smaller than the inner diameter of the bent flow channel and the middle flow channel, the inner diameter of the bent flow channel and the middle flow channel is larger than the maximum width of the chain, the jointing flow channel is provided with a guide groove, the width of one end of the guide groove is equal to the inner diameter of the bent flow channel, and the width of the other end of the guide groove is smaller than the inner diameter of the bent flow channel. Therefore, the chain cannot be limited when in torsion in the bent flow channel and the middle flow channel, so as to improve the running smoothness.
Description
technical field [0001] The invention relates to an accessory of a ball screw, especially a return element of the ball screw, and the return element is used for a ball screw with a chain. Background technique [0002] In precision machinery, there is often a design that needs to control the movement of the working platform or processing components. In order to control the movement feed accurately and with a small friction coefficient, the movement is precisely driven by a ball screw, and the ball screw is equipped with a screw and a For the nut, in order to reduce the generation of friction, there are multiple balls between the screw and the nut, and the balls must be able to repeatedly roll in the nut. completed, as Figure 11 As shown, it is the patent case of US Patent No. US6089117, which is a ball screw with a chain. The ball screw is mainly composed of a screw and a nut. And it is a spiral rolling groove and a rolling groove. The rolling groove and the rolling groove f...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More Application Information
Patent Timeline
Login to View More Patent Type & Authority Patents(China)
IPC IPC(8): F16H25/22
Inventor 林明尧郭长信江宗宪
Owner HIWIN TECH