CN110107665B

CN110107665B - Precision type pre-compaction ball screw

Info

Publication number: CN110107665B
Application number: CN201910498864.3A
Authority: CN
Inventors: 万春芬; 卢伟; 於雷; 吴致君
Original assignee: Hubei Engineering Institute
Current assignee: Hubei Engineering Institute
Priority date: 2019-06-10
Filing date: 2019-06-10
Publication date: 2023-06-23
Anticipated expiration: 2039-06-10
Also published as: CN110107665A

Abstract

The invention discloses a precision pre-pressing ball screw which comprises a screw rod and a screw bolt, wherein sealing rings are arranged at two ends, connected with the screw rod, of the screw rod, a plurality of balls are arranged in a circulation channel, a plurality of retainers are further arranged at the top end of the inside of the circulation channel, the retainers are positioned at the outer sides of the balls, an outer sleeve is arranged on the outer surface of the screw rod, an oil pipe is connected with the other end of the screw rod, a latch component is arranged at the outer side of the sealing rings, one end of the latch component is connected with the screw rod, and a compression ferrule is connected with the inner part, extending to the circulation channel, of the end part of the screw rod. According to the invention, the compression ferrule can be compressed in the circulation channel under the action of the screw rod by manually pressing the latch component, can be positioned between the included angles of the two balls when being compressed inwards and closed, can be attached to the outer surfaces of the two balls, so that the precompaction degree is adjusted, the normal rolling of the balls in the interior is not influenced, and the precompaction accuracy is improved.

Description

Precision type pre-compaction ball screw

Technical Field

The invention relates to a ball screw, in particular to a precision pre-pressing ball screw.

Background

The ball screw is a transmission element most commonly used on tool machinery and precision machinery, and has the main functions of converting rotary motion into linear motion or converting torque into axial repeated acting force, and meanwhile, the ball screw has the characteristics of high precision, reversibility and high efficiency.

Disclosure of Invention

The invention aims to overcome the defects of the prior art, and provides the precise pre-pressing ball screw, wherein the pressing ferrule can be pressed in the circulation channel under the action of the screw rod by manually pressing the latch component, can be positioned between the included angles of two balls when being pressed inwards and closed, can be attached to the outer surfaces of the two balls, so that the pre-pressing degree is regulated, the normal rolling of the inner balls is not influenced, and the pre-pressing accuracy is improved.

In order to solve the technical problems, the invention provides the following technical scheme:

the invention discloses a precision type pre-pressing ball screw which comprises a screw rod and a screw bolt, wherein sealing rings are arranged at two ends of the screw rod, which are connected with each other, threads are arranged on the screw rod, the screw rod penetrates through the screw rod, a circulating channel is arranged in the screw rod, a plurality of balls are arranged in the circulating channel, a plurality of retainers are further arranged at the top end of the inside of the circulating channel, the retainers are positioned at the outer sides of the balls, an outer sleeve is arranged on the outer surface of the screw rod, a limit sleeve is arranged at one end of the screw rod, an oil pipe is connected at the other end of the screw rod, a latch piece is arranged at the outer side of the sealing rings, one end of the latch piece is connected with the screw rod, and the end part of the screw rod extends to the inside of the circulating channel to be connected with a compression ferrule.

As a preferable technical scheme of the invention, the compression ferrule is of an arc-shaped tabletting structure.

As a preferred embodiment of the present invention, the latch member and the compression collar are connected by a screw.

As a preferable technical scheme of the invention, a plurality of clamping teeth are arranged between the bolt and the bolt, and the clamping teeth are positioned between the bolt and the sealing ring.

Compared with the prior art, the invention has the following beneficial effects:

according to the invention, the compression ferrule can be compressed in the circulation channel under the action of the screw rod by manually pressing the latch component, can be positioned between the included angles of the two balls when being compressed inwards and closed, can be attached to the outer surfaces of the two balls, so that the precompaction degree is adjusted, the normal rolling of the balls in the interior is not influenced, and the precompaction accuracy is improved.

Drawings

The accompanying drawings are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate the invention and together with the embodiments of the invention, serve to explain the invention. In the drawings:

FIG. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is an enlarged view of the structure of the portion A of the present invention;

in the figure: 1. a screw rod; 2. a bolt; 3. a ball; 4. a jacket; 5. a seal ring; 6. a retainer; 7. A limit sleeve; 8. an oil pipe; 9. a thread; 10. a latch member; 11. a circulation passage; 12. a screw; 13. the ferrule is compressed.

Detailed Description

The preferred embodiments of the present invention will be described below with reference to the accompanying drawings, it being understood that the preferred embodiments described herein are for illustration and explanation of the present invention only, and are not intended to limit the present invention. Wherein like reference numerals refer to like elements throughout.

Further, if detailed description of the known art is not necessary to illustrate the features of the present invention, it will be omitted. It should be noted that the words "front", "rear", "left", "right", "upper" and "lower" used in the following description refer to directions in the drawings, and the words "inner" and "outer" refer to directions toward or away from, respectively, the geometric center of a particular component.

Example 1

As shown in fig. 1-2, the invention provides a precision pre-pressing ball screw, which comprises a screw 1 and a bolt 2, wherein sealing rings 5 are arranged at two ends, which are connected with the screw 1, of the screw 2, threads 9 are arranged on the screw 1, the screw 1 penetrates through the bolt 2, a circulation channel 11 is arranged in the bolt 2, a plurality of balls 3 are arranged in the circulation channel 11, a plurality of retainers 6 are further arranged at the top end of the circulation channel 11, the retainers 6 are positioned at the outer sides of the balls 3, an outer sleeve 4 is arranged on the outer surface of the bolt 2, a limit sleeve 7 is arranged at one end of the screw 1, an oil pipe 8 is connected at the other end of the screw 1, a bolt component 10 is arranged at the outer side of the sealing rings 5, a screw 12 is connected at one end of the bolt component 10, and the end of the screw 12 extends to the inside of the circulation channel 11 and is connected with a compression ferrule 13.

Further, the pressing ferrule 13 is of an arc-shaped pressing structure, can be positioned between the included angles of the two balls 3 when being pressed inwards and closed, can be attached to the outer surfaces of the two balls 8, achieves the effect of adjusting the pre-pressing degree, and can not influence the normal rolling of the inner balls 3.

The latch component 10 and the compression ferrule 13 are connected through the screw 12, so that the compression ferrule 13 can be compressed in the circulation channel 11 under the action of the screw 12 by manually pressing the latch component 10.

A plurality of clamping teeth are arranged between the bolt 10 and the bolt 2, the clamping teeth are positioned between the bolt 2 and the sealing ring 5, the distance between the bolt 10 and the sealing ring 5 can be adjusted, and the pre-compression degree of the compression ferrule 13 is adjusted by the clamping teeth.

Specifically, both ends that are connected at bolt 2 and lead screw 1 all are provided with sealing washer 5, bolt spare 10 is installed in the outside of sealing washer 5, the one end of bolt spare 10 is connected with screw rod 12, the tip of screw rod 12 extends to the internal connection of circulation passageway 11 and compresses tightly lasso 13, can make to compress tightly lasso 13 compress tightly in circulation passageway 11 under the effect of screw rod 12 through manual pressing bolt spare 10, can be in between the contained angle of two balls 3 when inwards compressing tightly and closing together to can laminate the surface of two balls 8, reach and adjust precompaction degree, can not influence the normal roll of inside ball 3 simultaneously.

According to the invention, the compression ferrule 13 can be compressed in the circulation channel 11 under the action of the screw rod 12 by manually pressing the latch component 10, can be positioned between the included angles of the two balls 3 when being compressed inwards and closed, can be attached to the outer surfaces of the two balls 8, so that the precompaction degree is adjusted, the normal rolling of the inner balls 3 is not influenced, and the precompaction accuracy is improved.

Finally, it should be noted that: the foregoing description is only a preferred embodiment of the present invention, and the present invention is not limited thereto, but it is to be understood that modifications and equivalents of some of the technical features described in the foregoing embodiments may be made by those skilled in the art, although the present invention has been described in detail with reference to the foregoing embodiments. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides a precision type pre-compaction ball screw, includes lead screw (1) and bolt (2), its characterized in that, both ends that bolt (2) and lead screw (1) are connected all are provided with sealing washer (5), set up screw thread (9) on lead screw (1), and lead screw (1) run through in bolt (2), circulation channel (11) have been seted up to the inside of bolt (2), the inside of circulation channel (11) is provided with a plurality of balls (3), a plurality of holders (6) are still installed on the inside top of circulation channel (11), and holder (6) are located the outside of balls (3), overcoat (4) are installed to the surface of bolt (2), stop collar (7) are installed to the one end of lead screw (1), the other end of lead screw (1) is connected with oil pipe (8), bolt spare (10) are installed in the outside of sealing washer (5), the one end of bolt spare (10) is connected with screw (12), the inside that the tip of screw (12) extends to circulation channel (11) compresses tightly lasso (13).

The compression ferrule (13) is of an arc-shaped tabletting structure; the latch component (10) is connected with the compression ferrule (13) through a screw rod (12); be provided with a plurality of latches between latch spare (10) and bolt (2), and the latch is located between bolt (2) and sealing washer (5), can make through manual latch spare (10) compress tightly lasso (13) in circulation passageway (11) under the effect of screw rod (12), can be in between the contained angle of two balls (3) when inwards compressing tightly and draw close to can laminate the surface of two balls (3), reach and adjust precompaction degree.