CN216768255U

CN216768255U - Low-noise ball screw

Info

Publication number: CN216768255U
Application number: CN202122935844.3U
Authority: CN
Inventors: 季平; 茅建荣; 钮允玉
Original assignee: Nantong Taier Precision Machinery Co ltd
Current assignee: Nantong Taier Precision Machinery Co ltd
Priority date: 2021-11-27
Filing date: 2021-11-27
Publication date: 2022-06-17
Anticipated expiration: 2031-11-27

Abstract

The utility model discloses a low-noise ball screw, which comprises a screw rod, a nut and a steel ball, wherein the nut is positioned on the outer surface of the screw rod, the outer surface of the screw rod is provided with a steel ball outer channel, the inner surface of the nut is provided with a steel ball inner channel, the inner surface of the steel ball inner channel is in sliding connection with the outer surface of the steel ball, the bottom of the steel ball inner channel is provided with an oil inlet, the bottom of the oil inlet is provided with an oil groove, and the inner surface of the oil inlet is clamped with oil absorption cotton. The oil inlet hole, the oil absorption cotton and the oil groove are arranged, so that lubricating oil can be coated on the surface of the steel ball in the process of operation of the steel ball, noise generated by friction among the steel balls is reduced, the noise generated in the process of operation of the ball screw can be absorbed and isolated by the annular groove, the sound insulation plate, the sound absorption cloth and the sound absorption cotton, and the transmission of the noise is reduced.

Description

Low-noise ball screw

Technical Field

The utility model relates to the technical field of ball screws, in particular to a low-noise ball screw.

Background

The ball screw 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. However, when the ball screw in the prior art runs at a high speed, sharp noise is generated due to friction, the ball screw is deformed after long-term use, the use precision is affected, and meanwhile, eardrums of workers are damaged.

SUMMERY OF THE UTILITY MODEL

In view of the problems in the prior art, the present invention aims to provide a low-noise ball screw.

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

low noise ball, including screw rod, nut and steel ball, the nut is located the surface of screw rod, the outer passageway of steel ball has been seted up to the surface of screw rod, the interior surface of nut has seted up the interior passageway of steel ball, the internal surface of steel ball interior passageway and the surface sliding connection of steel ball, the inlet port has been seted up to the bottom of steel ball interior passageway, the oil groove has been seted up to the bottom of inlet port, the internal surface joint of inlet port has the oil absorption cotton, the annular has been seted up to the inside of nut, the mechanism of making an uproar falls in the inner chamber fixedly connected with of annular, it includes the acoustic celotex board, inhales the sound cloth and inhales the sound cotton to fall the mechanism of making an uproar.

As further described in the scheme, the outer surface of the nut is provided with a protective layer, and the protective layer comprises a heat insulation layer, a wear-resistant layer and a rust-proof layer.

As a further description of the above solution, the sound-absorbing cloth is located on the outer surface of the sound-insulating board, and the sound-absorbing cotton is located on the outer surface of the sound-absorbing cloth.

As a further description of the above scheme, a sealing cover is screwed on the left side of the inner surface of the oil groove, and a rotating handle is fixedly connected on the left side of the sealing cover.

As a further description of the above scheme, the heat insulation layer is located on the outer surface of the nut, the wear-resistant layer is located on the outer surface of the heat insulation layer, and the rust-proof layer is located on the outer surface of the wear-resistant layer.

As a further description of the above solution, the bottom of the oil absorption cotton extends to the bottom of the inner cavity of the oil tank, and the top of the oil absorption cotton is in contact with the outer surface of the steel ball.

As further description of the scheme, the steel balls are in sliding connection with the inner surface of the steel ball outer channel, and the number of the steel balls is several.

Compared with the prior art, the utility model has the following beneficial effects:

the utility model can coat lubricating oil on the surface of the steel ball in the process of the operation of the steel ball by arranging the oil inlet hole, the oil absorption cotton and the oil groove, reduce the noise generated by friction among the steel balls, absorb and isolate the noise generated in the operation process of the ball screw by arranging the annular groove, the sound insulation plate, the sound absorption cloth and the sound absorption cotton, and reduce the transmission of the noise.

Drawings

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

FIG. 2 is a cross-sectional view of the structure of the present invention;

FIG. 3 is a side cross-sectional view of a protective layer structure of the present invention;

FIG. 4 is an enlarged view of a portion of the structure of FIG. 2;

fig. 5 is a partial perspective view and a sectional view of the noise reduction mechanism structure of the present invention.

In the figure: 1. a screw; 2. a nut; 3. a steel ball; 4. a steel ball outer channel; 5. a steel ball inner channel; 6. an oil inlet hole; 7. an oil sump; 8. oil absorbing cotton; 9. a ring groove; 10. a noise reduction mechanism; 101. a sound insulating board; 102. sound-absorbing cloth; 103. sound-absorbing cotton; 11. a protective layer; 111. a thermal insulation layer; 112. a wear layer; 113. a rust-proof layer; 12. a sealing cover; 13. and (7) rotating a handle.

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. 1-5, the low noise ball screw includes a screw rod 1, a nut 2 and a steel ball 3, the nut 2 is located on the outer surface of the screw rod 1, the outer surface of the screw rod 1 is provided with a steel ball outer passage 4, the inner surface of the nut 2 is provided with a steel ball inner passage 5, the inner surface of the steel ball inner passage 5 is slidably connected with the outer surface of the steel ball 3, the bottom of the steel ball inner passage 5 is provided with an oil inlet 6, the bottom of the oil inlet 6 is provided with an oil groove 7, the inner surface of the oil inlet 6 is clamped with an oil absorption cotton 8, the nut 2 is internally provided with a ring groove 9, the inner cavity of the ring groove 9 is fixedly connected with a noise reduction mechanism 10, the noise reduction mechanism 10 includes a sound insulation plate 101, an acoustic absorption cloth 102 and an acoustic absorption cotton 103, and by providing the oil inlet 6, the oil absorption cotton 8 and the oil groove 7, lubricating oil can be smeared on the surface of the steel ball 3 during the operation of the steel ball 3, the noise generated by friction between the steel balls 3 can be reduced, through setting up annular 9, acoustic celotex board 101, inhale sound cloth 102 and inhale sound cotton 103, can absorb the isolation to the noise that ball operation in-process produced, the transmission of noise reduction, through setting up above structure, possess the advantage that can reduce the noise that ball operation produced by the friction, ball among the prior art is when high-speed operation, can produce sharp-pointed noise because of the friction, long-term use can make ball take place to warp, influence the precision in the use, the while also can cause the problem of damage to staff's eardrum.

Wherein, the surface of nut 2 is provided with inoxidizing coating 11, inoxidizing coating 11 includes insulating layer 111, wearing layer 112 and antirust coat 113, insulating layer 111 is the glass fiber coating, glass fiber has good insulating nature and heat resistance, wearing layer 112 is the nano ceramic wear-resistant coating, the nano ceramic wear-resistant coating has good wear resistance, antirust coat 113 is the anti-rust paint coating, can effectually avoid the surface of nut 2 to rust, through setting up insulating layer 111, can improve nut 2's heat-proof quality, the heat transfer who produces when avoiding ball screw operation to nut 2's surface, through setting up wearing layer 112, can improve nut 2's wearability, through setting up antirust coat 113, can improve nut 2 surface's antirust property, avoid nut 2's surface to rust.

The sound-absorbing cloth 102 is located on the outer surface of the sound-insulating panel 101, and the sound-absorbing cotton 103 is located on the outer surface of the sound-absorbing cloth 102.

In the utility model, the left side of the inner surface of the oil tank 7 is in threaded connection with the sealing cover 12, the left side of the sealing cover 12 is fixedly connected with the rotating handle 13, the oil tank 7 can be sealed by arranging the sealing cover 12, and the sealing cover 12 can be conveniently rotated by arranging the rotating handle 13.

Specifically, the heat insulation layer 111 is located on the outer surface of the nut 2, the wear-resistant layer 112 is located on the outer surface of the heat insulation layer 111, and the rust-proof layer 113 is located on the outer surface of the wear-resistant layer 112.

Specifically, the bottom of the oil absorption cotton 8 extends to the bottom of the inner cavity of the oil groove 7, and the top of the oil absorption cotton 8 is in contact with the outer surface of the steel ball 3.

Specifically, the steel balls 3 are slidably connected with the inner surface of the steel ball outer channel 4, and the number of the steel balls 3 is several.

The working principle is as follows: when in use, in the process of the steel ball 3 running, the steel ball 3 will contact with the surface of the oil absorption cotton 8, the oil absorption cotton 8 will absorb the lubricating oil in the oil groove 7, when the steel ball 3 contacts the oil absorption cotton 8, the lubricating oil can be smeared on the surface of the steel ball 3, so that the noise generated by friction between the steel balls 3 can be reduced, meanwhile, the smaller noise is absorbed and isolated by the sound insulation board 101, the sound absorption cloth 102 and the sound absorption cotton 103 through the smaller noise path ring groove 9, the noise generated by the ball screw is reduced again, by adopting the structure, the structure has the advantage of reducing the noise generated by friction when the ball screw runs, solves the problems that when the ball screw runs at high speed in the prior art, can produce sharp-pointed noise because of the friction, long-term use can make ball take place to warp, influences the precision in the use, also can cause the problem of damage to staff's eardrum simultaneously.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims

1. Low noise ball, including screw rod (1), nut (2) and steel ball (3), its characterized in that: nut (2) are located the surface of screw rod (1), steel ball outer passageway (4) have been seted up to the surface of screw rod (1), steel ball inner passageway (5) have been seted up to the internal surface of nut (2), the internal surface of steel ball inner passageway (5) and the surface sliding connection of steel ball (3), inlet port (6) have been seted up to the bottom of steel ball inner passageway (5), oil groove (7) have been seted up to the bottom of inlet port (6), the internal surface joint of inlet port (6) has oil absorption cotton (8), annular (9) have been seted up to the inside of nut (2), the inner chamber fixedly connected with of annular (9) falls mechanism (10) of making an uproar, fall mechanism (10) of making an uproar and include acoustic celotex board (101), inhale sound cloth (102) and inhale sound cotton (103).

2. The low noise ball screw according to claim 1, wherein: the outer surface of the nut (2) is provided with a protective layer (11), and the protective layer (11) comprises a heat insulation layer (111), a wear-resistant layer (112) and an anti-rust layer (113).

3. The low noise ball screw according to claim 1, wherein: the sound absorption cloth (102) is positioned on the outer surface of the sound insulation board (101), and the sound absorption cotton (103) is positioned on the outer surface of the sound absorption cloth (102).

4. The low noise ball screw according to claim 1, wherein: the left side threaded connection of oil groove (7) internal surface has sealed lid (12), the left side fixedly connected with turning handle (13) of sealed lid (12).

5. The low noise ball screw according to claim 2, wherein: the heat insulation layer (111) is located on the outer surface of the nut (2), the wear-resistant layer (112) is located on the outer surface of the heat insulation layer (111), and the anti-rust layer (113) is located on the outer surface of the wear-resistant layer (112).

6. The low noise ball screw according to claim 1, wherein: the bottom of the oil absorption cotton (8) extends to the bottom of the inner cavity of the oil groove (7), and the top of the oil absorption cotton (8) is in contact with the outer surface of the steel ball (3).

7. The low noise ball screw according to claim 1, wherein: the steel balls (3) are in sliding connection with the inner surface of the steel ball outer channel (4), and the number of the steel balls (3) is a plurality.