Ball screw with guide pipes
A technology of ball screw and conduit, which is applied in the direction of belt/chain/gear, mechanical equipment, transmission device, etc., can solve the problems of complex structure of ball screw, complex structure of ball return device, narrow application field, etc., and reduce installation cost , Reduce the axial size, reduce the effect of manufacturing cost
Pending Publication Date: 2020-04-28
CIXING GROUP
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AI Technical Summary
Problems solved by technology
[0003] At present, the ball returning device that plays the role of returning the ball on the ball screw is either more complicated in structure, or it is installed on the end face of the nut.
For the ball screw with the ball returning device installed on the end face of the nut, its application field is relatively narrow, and other structures such as external threads cannot be integrated at both ends of the nut of the ball screw, so that other structures must be installed separately from the nut, resulting in The entire ball screw has complex structure and low strength
Method used
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[0021] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.
[0022] see Figure 1 to Figure 6 , a ball screw with a catheter shown in the figure, including a screw 10, a nut 20 and a number of balls 30, the nut 20 is installed on the screw 10, and a number of balls 30 are placed between the channel 21 of the nut 20 and the The screw rod 10 rolls between the grooves 11 ; two anti-rotation grooves 22 are symmetrically arranged on the outer peripheral surface of the nut 20 , and the two anti-rotation grooves 22 extend along the axis of the nut 20 .
[0023] The present invention is characterized in that: one end of the screw nut 20 is provided with a connection structure for connecting the screw nut 20 with other parts, such as a sleeve 40 with an external thread 41, the sleeve 40 is sleeved on the screw rod 10 and It is integrated with the silk mother 20, which improves the overall strength.
[0024] In ...
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The invention discloses a ball screw with guide pipes. The ball screw comprises a screw, a nut and a plurality of balls, the nut is mounted on the screw, and the multiple balls roll between a channelof the nut and a channel of the screw; one or more anti-rotating grooves are formed in the peripheral face of the nut and extend along the axis of the nut, the anti-rotating grooves are provided witha connecting structure at one end of the nut, wherein the connecting structure is used for connecting the nut with other parts, and the connecting structure and the nut are integrally manufactured; guide pipe placement holes communicating with an inner hole of the nut are formed in the positions, close to the two ends, on the peripheral wall of the nut correspondingly, a ball circulating hole channel is formed in the peripheral wall of the nut, the two ends of the ball circulating hole channel communicate with the two guide pipe placement holes correspondingly, but the ball circulating hole channel does not communicate with the channel of the nut; and each guide pipe placement hole is internally provided with the corresponding guide pipe, and the balls circularly roll between the channel of the nut and the channel of the screw through one of the guide pipes, the ball circulating hole channel and the other guide pipe.
Description
technical field [0001] The invention relates to the technical field of ball screw rods, in particular to a ball screw rod with a guide tube. Background technique [0002] Ball screw products are used in automotive electronic brake systems. The screw is directly connected to the motor rotor through the internal thread hole, and the screw nut is directly connected to the hydraulic cylinder through the external thread. The motor drives the screw to rotate, and the screw drives the balls to reciprocate in a circular motion. Since the screw nut is provided with an anti-rotation groove to realize the anti-rotation function, the motion is finally converted into the reciprocating linear movement of the screw nut, which drives the hydraulic cylinder to reciprocate and linearly move. [0003] At present, the ball returning device that plays the role of returning the ball on the ball screw or the structure is relatively complicated, or it is installed on the end face of the nut. For t...
Claims
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IPC IPC(8): F16H25/22
CPCF16H25/2204F16H25/2214
Inventor 赵坤付阳恒徐林燕
Owner CIXING GROUP