Insert block type ball screw pair

A technology of ball screw pairs and balls, which is applied in belts/chains/gears, mechanical equipment, transmission devices, etc., can solve the problems of noise structure and manufacturability, and achieve simplification of processing, reduction of noise and temperature rise, and application The effect of widening the range

Active Publication Date: 2008-11-26
NANJING TECHN EQUIP MFG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] In order to overcome the deficiencies of the existing structural ball screw pair in terms of large lead and high speed, load bearing, noise, temperature rise, structure, and manufacturability, the purpose of the present invention is to provide a bone-shaped insert type ball screw pair , the ball screw pair has a new circulation structure, which not only has great advantages in large lead, high speed and low noise, but also has great improvements in structure and processability.

Method used

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  • Insert block type ball screw pair
  • Insert block type ball screw pair
  • Insert block type ball screw pair

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] A single-nut plug-in type ball screw pair according to the present invention, see figure 1 , including a lead screw 1, a nut 2, a reverser 3 and a ball 4, the thread on the lead screw 1 is adapted to the nut 2, and the nut 2 is set on the lead screw 1; a group of balls 4 is arranged on the lead screw 1 and the In the spiral passage formed by the spiral groove of the nut 2, the nut 2 moves on the lead screw 1 through the ball 4 and the reverser 3. The shape of the retroreflector 3 is approximately bone-shaped. The outer circle of the nut 2 is provided with a mounting groove 21 matching the shape of the reverser 3; the mounting groove 21 on the nut 2 is composed of two eccentric circular holes and a straight groove along the direction of the nut busbar, the straight groove The two sides are respectively tangent to the two eccentric circular holes, and the shape of the deflector 3 matches the shape formed by the two holes on the nut 2 and the straight groove. The reverse...

Embodiment 2

[0033] A double-nut washer pre-tightened plug-in ball screw pair according to the present invention, see Figure 6. Including lead screw 1, flange nut 2a, straight nut 2b, adjusting gasket 7, reverser 3, ball 4, spacer 6, etc. Both the flange nut 2a and the straight nut 2b are mounted on the lead screw 1, and the flange nut 2a and the straight nut 2b are fixedly connected by a key 8. An adjusting washer 7 is provided between the flange nut 2a and the straight nut 2b to adjust the pretightening force. The ball 4 and the spacer 6 are installed between the lead screw 1 and the two nuts 2a, 2b, and the thread transmission between the lead screw 1 and the nuts is realized by the ball 4 . The outer circle of the nut is processed with a bone-shaped installation groove 21 for installing the reverser 3, and the bone-shaped reverser 3 is installed in the installation groove 21, and the two ends are fixed with the set screws 5 with tapered ends.

[0034] When working, the ball screw p...

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Abstract

The inserted block type ball screw pair includes lead screw, nut, reverser and balls. The lead screw is fitted to the nut; one group of balls is set inside the spiral channel comprising with the the spiral slots in the nut and the lead screw; the nut moves through the balls and the reverser n the lead screw; and the reverser is fitted inside the installing slot in the outer surface of the nut and has inside passage for the balls to circulate and with opened ends to fit the spiral channel for influent returning of the balls. The present invention has great pitch, high speed, great bearing capacity and low noise and other advantages.

Description

1. Technical field [0001] The invention relates to a mechanical transmission part, in particular to a ball screw pair, in particular to a plug-in type ball screw pair with a new circulation structure. 2. Background technology [0002] The ball screw pair is an important part of rolling functional parts. Its performance and quality reflect the development level of a country's machine tool industry, and it is also an important driving force for the development of a country's electromechanical industry in the direction of high-end, precision and cutting-edge. Because the ball screw pair has the characteristics of small frictional resistance, high transmission efficiency, high positioning accuracy, and reversible transmission, it is widely used in the machine tool industry and other related machinery industries. [0003] At present, the ball screw pair is mainly composed of ball screw, ball nut, reverser, ball, dust ring and other parts. The outer surface of the screw and the i...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F16H25/22F16H25/24
Inventor 汪爱清高乃坤许舜付慧星
Owner NANJING TECHN EQUIP MFG
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