Inner loop end block type ball screw pair

A ball screw pair and internal circulation technology, applied in the direction of belts/chains/gears, mechanical equipment, transmission devices, etc., can solve the problems of limited number of bearing turns, poor manufacturability, and uneven transition, etc., to achieve load bearing The effect of large capacity, good processing technology and small space occupation

Inactive Publication Date: 2005-08-17
NANJING TECHN EQUIP MFG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The existing internal circulation structure has many restrictive factors in terms of large lead and high speed, and the number of load-carrying turns is limited; The tongue is easy to break at high speed, the angle at the corner of the spiral groove is large, the transition is not smooth, and the hand feeling is not good enough, which greatly restricts the increase of lead and speed, and also limits the bearing capacity of the ball screw pair.
Ordinary internal circulation structure, when the lead is large, the span between the two raceways is large, which makes the flow ball raceway curve on the reverser complicated and difficult to process, even if it is processed, the flow ball effect is not good

Method used

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  • Inner loop end block type ball screw pair
  • Inner loop end block type ball screw pair
  • Inner loop end block type ball screw pair

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Experimental program
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Embodiment Construction

[0017] An inner circulation end block type ball screw pair, which is composed of a screw 1, a nut 2 and a steel ball 3, the screw 1 and the nut 2 are respectively provided with raceway grooves, and the steel ball 3 is arranged on the screw 1 and the steel ball In the steel ball raceway formed by the combination of the raceway grooves of the nut 2, it is characterized in that a through hole 21 is provided on the nut 2, and reverser grooves are arranged at both ends of the nut 2, and each reverser groove is respectively provided with The return device 4 or 5, the return device is a return block, on the return block is provided with a return raceway 6 and a tongue 7, the port of the return raceway 6 is connected with the steel ball raceway, and the return roller The other port of the track 6 communicates with the through hole 21 on the nut 2, and the tongue 7 on the return block is located in the ball raceway. In this embodiment, the nut 2 is a flange nut. In the present inventio...

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PUM

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Abstract

This invention discloses a ball bearing thread rod pair and especially relates to inner recycling end ball bearing pair composed of thread rod, screw and steel ball. The invention separately locates rolling groove on the thread rod and screw and the steel ball is located in the channel formed by thread rod and rolling grove of the screw. The screw is opened with holes and reverse groove on both ends. Each reverse device groove is located with reverse device as one reverse block. The reverse block is located with reverse rolling channel and block plate. The reverse rolling channel end is connected to the steel channel. The other end of reverse channel is connected to the screw hole and the block of the reverse block is located inside the steel channel.

Description

technical field [0001] The invention relates to a ball screw pair, in particular to an inner circulation end block type ball screw pair. Background technique [0002] The circulation structures of the existing ball screw auxiliary nuts mainly include two types of internal circulation and external circulation, and the most common external circulation structures are the intubation type and the spiral groove type. The existing internal circulation structure has many restrictive factors in terms of large lead and high speed, and the number of load-carrying turns is limited; The tongue is easy to break at high speed, the corner of the spiral groove has a large angle, the transition is not smooth, and the hand feeling is not good enough, which greatly restricts the increase of lead and speed, and also limits the load capacity of the ball screw pair. Ordinary internal circulation structure, when the lead is large, the span between the two raceways is lar...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16H25/22
Inventor 高乃坤付慧星
Owner NANJING TECHN EQUIP MFG
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