CN215720609U

CN215720609U - End cover type ball screw

Info

Publication number: CN215720609U
Application number: CN202122358447.4U
Authority: CN
Inventors: 杜兆坤; 谷文刚; 于声威; 江海
Original assignee: Shenyang Keruiaite Precision Machinery Co ltd
Current assignee: Shenyang Keruiaite Precision Machinery Co ltd
Priority date: 2021-09-28
Filing date: 2021-09-28
Publication date: 2022-02-01
Anticipated expiration: 2031-09-28

Abstract

The utility model discloses an end cover type ball screw, which comprises a screw shaft, wherein a nut is movably connected onto the screw shaft, a connecting rod protrudes out of the side wall of the nut, a spring is sleeved on the connecting rod, a round block is welded at the end part of the spring, a screw block is connected with the connecting rod in a threaded manner, and a driving piece is connected with the connecting rod. According to the utility model, as the nut moves on the screw shaft, the sleeve block is fixed with the nut under the action of the connecting rod, so that the sleeve block can move along with the nut, and the positions rusted on the screw shaft can be polished and subjected to rust removal treatment by the bumps on the inner wall of the through groove, so that the surface of the screw shaft can be treated by the bumps even if corroded by foreign matters, so that the rust can be prevented, and the rust can be treated conveniently.

Description

End cover type ball screw

Technical Field

The utility model relates to the technical field of ball screws, in particular to an end cover type ball screw.

Background

The ball screw is an ideal product for converting rotary motion into linear motion or converting linear motion into rotary motion, is the most commonly used transmission element on tool machinery and precision machinery, has the main function of converting rotary motion into linear motion or converting torque into axial repeated acting force, and has the characteristics of high precision, reversibility and high efficiency. Ball screws are widely used in various industrial equipments and precision instruments due to their small frictional resistance.

The screw shaft of the ball screw is exposed in the air, so that the screw shaft is corroded by foreign objects to rust, thereby influencing the use, and therefore the improvement is needed, so that the screw shaft does not need to be additionally subjected to rust removal treatment during normal use.

SUMMERY OF THE UTILITY MODEL

The utility model aims to: in order to solve the above problems, an end cap type ball screw is proposed.

In order to achieve the purpose, the utility model adopts the following technical scheme:

the utility model provides an end cover formula ball, includes the screw axle, and swing joint has the nut on the screw axle, the lateral wall of nut is outstanding to have the connecting rod, the cover is equipped with the spring on the connecting rod, the tip welding of spring has the round piece, connecting rod threaded connection has the spiral shell piece, the connecting rod is connected with the driving piece.

Preferably, the nut sleeve comprises a sleeve block, a circular groove is formed in the sleeve block, the connecting rod penetrates through the circular groove, a through groove is formed in the sleeve block, a protruding block protrudes from the inner wall of the through groove, a side block is fixedly connected to the side wall of the sleeve block, and a connecting groove formed in the side block is abutted to the side wall of the nut.

Preferably, a resilient gasket is arranged in the connecting groove.

Preferably, the surface of the part of the projection which is connected with the screw shaft in a sliding way is frosted.

Preferably, the inner wall of the circular groove is smooth and coated with a wear-resistant layer.

In summary, due to the adoption of the technical scheme, the utility model has the beneficial effects that:

1. this application is through when the nut moves on the screw shaft, and the cover block is fixed with the nut under the effect of connecting rod, and consequently the cover block can be along with the nut together removes, and logical inslot wall's lug can polish the epaxial rusty position of screw, and the rust cleaning is handled, even if consequently the surface of screw shaft receives the corruption of foreign object can be handled by the lug, not only can prevent to rust, also can handle the rust stain, and is comparatively convenient.

2. This application through the lateral wall of nut stretch into the spread groove of side piece in, with the packing ring butt, because the packing ring has elasticity, consequently the phenomenon that the fixed dynamics is too big and damage can not appear when nut and cover block are fixed as an organic whole, under the effect of force that the cover block was given to the spring and circle piece, can prevent that cover block and nut are fixed too closely, subsequent cover block of being convenient for is dismantled.

Drawings

FIG. 1 is a schematic view of a ball screw structure provided according to an embodiment of the present invention;

FIG. 2 illustrates a schematic structural view of a nut provided according to an embodiment of the present invention;

fig. 3 is a schematic diagram illustrating a structure of a nest block according to an embodiment of the present invention.

Illustration of the drawings:

1. a screw shaft; 2. a nut; 3. a connecting rod; 4. a spring; 5. a round block; 6. sleeving blocks; 7. a circular groove; 8. a screw block; 9. a through groove; 10. a bump; 11. a side block; 12. connecting grooves; 13. a gasket.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-3, the present invention provides a technical solution:

the utility model provides an end cover formula ball, includes screw axle 1, swing joint has nut 2 on the screw axle 1, and the lateral wall of nut 2 is outstanding to have connecting rod 3, and the cover is equipped with spring 4 on connecting rod 3, and the end welding of spring 4 has a

disk

5, and 3 threaded connection of connecting rod have a spiral shell piece 8, and connecting rod 3 is connected with the driving piece.

Specifically, as shown in fig. 1 and 3, the driving piece includes nest block 6, round slot 7 has been seted up on nest block 6, the inner wall of round slot 7 is smooth and scribbles and is equipped with the wearing layer, connecting rod 3 runs through round slot 7, logical groove 9 has been seted up on nest block 6, the inner wall that leads to groove 9 is outstanding to have lug 10, lug 10 is the dull polish form with screw shaft 1 sliding connection's partial surface, the lateral wall fixedly connected with side piece 11 of nest block 6, the lateral wall butt through spread groove 12 and nut 2 on the side piece 11, be equipped with elastic packing ring 13 in the spread groove 12, packing ring 13 and nut 2's lateral wall butt, thereby can prevent being connected between nut 2 and the nest block 6 too closely to cause the damage.

In conclusion, the sleeve block 6 is sleeved on the screw shaft 1, the screw shaft 1 penetrates through the through groove 9, the connecting rod 3 penetrates through the circular groove 7, the sleeve block 6 is abutted to the side wall of the nut 2, the connecting groove 12 formed in the side block 11 is abutted to the side wall of the nut 2, the spring 4 pushes the circular block 5 to abut the side wall of the circular block 5 to the side wall of the sleeve block 6, and when the nut 2 moves on the screw shaft 1, the lug 10 on the through groove 9 in the sleeve block 6 polishes and derusts the surface of the screw shaft 1.

The previous description of the embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the utility model. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. The utility model provides an end cover formula ball, includes screw shaft (1), its characterized in that, swing joint has nut (2) on screw shaft (1), the lateral wall of nut (2) is outstanding to have connecting rod (3), the cover is equipped with spring (4) on connecting rod (3), the tip welding of spring (4) has round piece (5) of cover on connecting rod (3), connecting rod (3) threaded connection has spiral shell piece (8), connecting rod (3) are connected with the driving piece.

2. The end cover type ball screw according to claim 1, wherein the driving member comprises a sleeve block (6), a circular groove (7) is formed in the sleeve block (6), the connecting rod (3) penetrates through the circular groove (7), a through groove (9) is formed in the sleeve block (6), a convex block (10) protrudes from the inner wall of the through groove (9), a side block (11) is fixedly connected to the side wall of the sleeve block (6), and a connecting groove (12) formed in the side block (11) is abutted to the side wall of the nut (2).

3. An end-cap ball screw according to claim 2, characterised in that a resilient washer (13) is provided in the connecting groove (12).

4. An end-cap ball screw according to claim 2, characterised in that the surface of the portion of the cam (10) which is in sliding connection with the screw shaft (1) is frosted.

5. An end-cap ball screw according to claim 2, characterised in that the inner wall of the circular groove (7) is smooth and coated with a wear resistant layer.