Flange reinforced type ball screw pair with anti-rotation limiting block
A ball screw pair and rotation limit technology, which is applied in the direction of transmission, belt/chain/gear, mechanical equipment, etc., can solve the problems of many parts and increase the cost of ball screw pair, so as to reduce the manufacturing cost and achieve a simple structure. , The effect of preventing loosening and falling
Pending Publication Date: 2019-03-12
CIXING GROUP
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Problems solved by technology
[0003] The technical problem to be solved by the present invention is to separate the design of the fixed structure for preventing the rotation of the screw and the limit mechanism for limiting the stroke of the screw in the existing ball screw pair, resulting in too many parts of the whole ball screw, which increases the number of ball screw components. In order to solve the problem of the cost of the pair, we provide a flange-reinforced ball screw pair with a rotation-preventing limit block that combines the fixed structure that prevents the screw from rotating and the limit mechanism that limits the travel of the screw to reduce the ball screw. The manufacturing cost of the screw pair is convenient for production and processing
Method used
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Embodiment Construction
[0015] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.
[0016] see Figure 1 to Figure 6 , a flange-reinforced ball screw pair with a rotation-preventing limit block shown in the figure includes a screw 10 and a screw nut 20 engaged with the screw 10 through a ball 30 and is fixed on the screw by interference fit. The screw rod stroke limiting block 40 on one end of the screw rod 10 and the anti-rotation limiting block 50 fixed at the other end of the screw rod 10 by interference fit.
[0017] A stepped inner hole 21 is arranged at the end of the screw nut 20 facing the screw travel limit block 40, and the outer circumference of the screw travel limit block 40 is a stepped shaft 41. When the stepped surface 42 of the stepped shaft 41 is in contact with the stepped inner hole When the step surface 22 in 21 is in contact, the screw rod stroke limit block 40 cooperates with the screw nut 30 to limit t...
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The invention discloses a flange reinforced ball screw pair with an anti-rotation limiting block. The ball screw pair comprises a screw rod, a nut which is meshed with the screw rod through a ball anda screw rod stroke limiting block which is fixed on one end of the screw rod. The ball screw pair is characterized that the other end of the screw rod is fixedly provided with the anti-rotation limiting block, when the anti-rotation limiting block is meshed with the nut, the anti-rotation limiting block limits the stroke of the screw rod on one hand, and on the other hand, the screw rod moves linearly and is prevented from rotating. According to the ball screw pair, the limiting mechanism for limiting the stroke of the screw rod and the fixing structure for preventing the screw rod from rotating in the original ball screw pair are combined into one, and the purpose of limiting the stroke of the screw rod and preventing the screw rod from rotating is achieved through one component. The ball screw pair has the advantages of being simple in structure, convenient to produce and machine and low in cost.
Description
technical field [0001] The invention relates to the technical field of ball screws, in particular to a flange-reinforced ball screw pair with a rotation-preventing limit block. Background technique [0002] The ball screw pair can change the rotary motion of the nut into the linear motion of the screw. During use, in order to prevent the screw from rotating with the screw nut, the rotation method of the screw is usually fixed so that the screw cannot rotate and can only move in a straight line. In addition, in order to prevent the screw rod from breaking away from the screw nut during the forward and backward movement, a limit mechanism is usually added at the front and rear ends of the screw rod to fix the stroke of the screw rod. In the existing ball screw pair, the fixing structure for preventing the rotation of the screw rod is separated from the limit mechanism for limiting the stroke of the screw rod, which results in too many parts of the whole ball screw rod and inc...
Claims
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Patent Timeline
Login to View More IPC IPC(8): F16H25/22F16H25/20
CPCF16H25/2015F16H25/2204
Inventor 赵坤陈栋栋徐林燕
Owner CIXING GROUP