CN219452800U - Low-noise ball screw - Google Patents

Abstract

The utility model relates to the technical field of ball screws, in particular to a low-noise ball screw. The technical proposal comprises: screw rod, bumper shock absorber, slider are communicating pipe and first buckle, screw rod one side outer wall is provided with the slider, the intercommunication groove has all been seted up to slider inner wall upper end both sides, communicating pipe has been placed to the intercommunication inslot portion, the bumper shock absorber is all installed to slider upper end outer wall both sides, the backup pad is installed to bumper shock absorber upper end outer wall, first buckle is installed to backup pad one end outer wall, first buckle upper end outer wall is provided with the second buckle, through setting up movable groove, bumper shock absorber and first buckle, has reached the effect of alleviating ball movement range, makes the removal of ball alleviate, has guaranteed the removal smoothness of ball, and reduces the ball at communicating pipe inside mobile noise.

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 an ideal product for converting rotary motion into linear motion or converting linear motion into rotary motion, 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 has the characteristics of high precision, reversibility and high efficiency.

Patent publication number CN101929533B discloses a high-speed low-noise precision ball screw pair, which consists of a ball screw, a ball nut, balls, an elastic buffer, an elastic return damper, a nut housing and a sealing ring; the ball screw is sleeved with a ball nut, the outer circle of the ball screw and the inner circle of the ball nut are provided with raceways, and balls are arranged in the raceways; and the two ends of the ball nut are provided with return device grooves, and each return device groove is respectively provided with an elastic buffer, an elastic return damper and a penetrating ball return channel. The high-speed precise ball screw pair structure can effectively overcome the impact and vibration brought by the ball in the rolling and autorotation direction returning process under the high-speed moving condition, and simultaneously absorbs the rubbing heat generated when a large number of balls roll, so that the problems of noise, vibration and heating of the precise ball screw pair under the high-speed running condition can be solved.

In the prior art CN101929533B, although there are many benefits in use, there still exists a problem that the movement of the balls is damped by the structure of the plurality of dampers and the buffer, but the movement resistance of the balls is large, and the sliding smoothness of the slider is affected.

Disclosure of Invention

The present utility model is directed to a low noise ball screw to solve the above-mentioned problems.

In order to achieve the above purpose, the present utility model provides the following technical solutions: the utility model provides a low noise ball, includes screw rod, bumper shock absorber, slider communicating pipe and first buckle, screw rod one side outer wall is provided with the slider, the intercommunication groove has all been seted up to slider inner wall upper end both sides, communicating pipe has been placed to inside the intercommunication groove, the bumper shock absorber is all installed to slider upper end outer wall both sides, the backup pad is installed to bumper shock absorber upper end outer wall, first buckle is installed to backup pad one end outer wall, first buckle upper end outer wall is provided with the second buckle.

When the low-noise ball screw in the technical scheme is used, when the sliding block moves outside the screw, the ball moves inside the movable hole and the communicating pipe, and when the ball enters and moves out of the communicating pipe, the impact force caused by the ball on the communicating pipe is relieved by the shock pad, the shock absorber and the spring.

Preferably, the inner wall of the sliding block and the outer wall of the screw are provided with movable holes, and balls are arranged in the movable holes. The sliding block moves through the movable hole and the ball.

Preferably, the two sides of the outer wall of the lower end of the communicating pipe are respectively fixedly attached with a buffer pad, and the buffer pads are contacted with the inner wall of the communicating groove. The buffer cushion achieves the purpose of protecting the communicating pipe, and ensures that the communicating pipe can move inside the communicating groove.

Preferably, a spring is arranged on the outer wall of one side of the shock absorber, and the supporting plate is elastically connected with the outer wall of the sliding block through the spring. The springs and the shock absorbers can alleviate the vibration of the supporting plate.

Preferably, the first buckle and the second buckle are designed in a circular arc shape, and the first buckle and the second buckle are distributed on the upper side and the lower side of the communicating pipe.

Preferably, the outer walls of two sides of the first buckle and the second buckle are respectively provided with a bolt, and the first buckle and the second buckle are connected through bolts. The first buckle and the second buckle ensure the position stability of the communicating pipe through the bolts.

Compared with the prior art, the utility model has the beneficial effects that: according to the utility model, the effect of relieving the movement amplitude of the balls is achieved by arranging the movable groove, the shock absorber and the first buckle, when the sliding block moves outside the screw rod, the balls move in the movable hole and the communicating pipe, and when the balls enter and move out of the communicating pipe, the impact force of the balls on the communicating pipe is relieved by the buffer cushion, the shock absorber and the spring, so that the movement of the balls is eased, the movement fluency of the balls is ensured, and the movement noise of the balls in the communicating pipe is reduced.

Drawings

FIG. 1 is a schematic cross-sectional view of a screw structure of the present utility model;

FIG. 2 is a schematic side view of a slider structure of the present utility model;

FIG. 3 is an enlarged schematic view of a portion of the slider structure of FIG. 1 in accordance with the present utility model.

In the figure: 1. a screw; 11. a slide block; 12. a movable hole; 13. a ball; 14. a communication groove; 15. a communicating pipe; 16. a cushion pad; 2. a damper; 21. a spring; 22. a support plate; 23. a first buckle; 24. a second buckle; 25. and (5) a bolt.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Referring to fig. 1 to 3, two embodiments of the present utility model are provided:

embodiment one: the utility model provides a low noise ball, includes screw rod 1, bumper shock absorber 2, slider 11 communicating pipe 15 and first buckle 23, and screw rod 1 one side outer wall is provided with slider 11, and intercommunication groove 14 has all been seted up to slider 11 inner wall upper end both sides, and communicating pipe 15 has been placed to inside the intercommunication groove 14, and bumper shock absorber 2 is all installed to slider 11 upper end outer wall both sides, and backup pad 22 is installed to bumper shock absorber 2 upper end outer wall, and first buckle 23 is installed to backup pad 22 one end outer wall, and first buckle 23 upper end outer wall is provided with second buckle 24.

The inner wall of the sliding block 11 and the outer wall of the screw 1 are both provided with movable holes 12, and balls 13 are arranged in the movable holes 12. The slider 11 moves through the movable hole 12 and the ball 13.

Embodiment two: the utility model provides a low noise ball, includes screw rod 1, bumper shock absorber 2, slider 11 communicating pipe 15 and first buckle 23, and screw rod 1 one side outer wall is provided with slider 11, and intercommunication groove 14 has all been seted up to slider 11 inner wall upper end both sides, and communicating pipe 15 has been placed to inside the intercommunication groove 14, and bumper shock absorber 2 is all installed to slider 11 upper end outer wall both sides, and backup pad 22 is installed to bumper shock absorber 2 upper end outer wall, and first buckle 23 is installed to backup pad 22 one end outer wall, and first buckle 23 upper end outer wall is provided with second buckle 24.

The two sides of the outer wall of the lower end of the communicating pipe 15 are fixedly attached with a buffer pad 16, and the buffer pad 16 is contacted with the inner wall of the communicating groove 14. The cushion 16 achieves the purpose of protecting the communicating tube 15, and ensures that the communicating tube 15 can move inside the communicating groove 14.

The outer wall of one side of the shock absorber 2 is provided with a spring 21, and a supporting plate 22 is elastically connected with the outer wall of the sliding block 11 through the spring 21. The spring 21 and the damper 2 can alleviate the vibration of the support plate 22.

The first buckle 23 and the second buckle 24 are designed in an arc shape, and the first buckle 23 and the second buckle 24 are distributed on the upper side and the lower side of the communicating pipe 15.

The outer walls of the two sides of the first buckle 23 and the second buckle 24 are respectively provided with a bolt 25, and the first buckle 23 and the second buckle 24 are connected through the bolts 25. The first buckle 23 and the second buckle 24 ensure the position stability of the communicating pipe 15 through the bolt 25, when the sliding block 11 moves outside the screw rod 1, the ball 13 moves inside the movable hole 12 and the communicating pipe 15, and when the ball 13 enters and moves out of the communicating pipe 15, the impact force of the ball 13 on the communicating pipe 15 is relieved by the cushion pad 16, the shock absorber 2 and the spring 21, so that the movement of the ball 13 is eased, the movement smoothness of the ball 13 is ensured, and the movement noise of the ball 13 inside the communicating pipe 15 is reduced.

It will be evident to those skilled in the art that the utility model is not limited to the details of the foregoing illustrative embodiments, and that the present utility model may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are, therefore, to be considered in all respects as illustrative and not restrictive, the scope of the utility model being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Claims (6)

1. The utility model provides a low noise ball, includes screw rod (1), bumper shock absorber (2), slider (11) communicating pipe (15) and first buckle (23), its characterized in that: the novel screw rod is characterized in that a sliding block (11) is arranged on one side outer wall of the screw rod (1), communication grooves (14) are formed in two sides of the upper end of the inner wall of the sliding block (11), communication pipes (15) are arranged inside the communication grooves (14), shock absorbers (2) are arranged on two sides of the outer wall of the upper end of the sliding block (11), a supporting plate (22) is arranged on the outer wall of the upper end of each shock absorber (2), a first buckle (23) is arranged on one end outer wall of each supporting plate (22), and a second buckle (24) is arranged on the outer wall of the upper end of each first buckle (23).

2. A low noise ball screw as defined in claim 1, wherein: the inner wall of the sliding block (11) and the outer wall of the screw rod (1) are both provided with movable holes (12), and balls (13) are arranged in the movable holes (12).

3. A low noise ball screw as defined in claim 1, wherein: and buffer pads (16) are fixedly attached to two sides of the outer wall of the lower end of the communicating pipe (15), and the buffer pads (16) are contacted with the inner wall of the communicating groove (14).

4. A low noise ball screw as defined in claim 1, wherein: the outer wall of one side of the shock absorber (2) is provided with a spring (21), and the supporting plate (22) is elastically connected with the outer wall of the sliding block (11) through the spring (21).

5. A low noise ball screw as defined in claim 1, wherein: the first buckle (23) and the second buckle (24) are designed in an arc shape, and the first buckle (23) and the second buckle (24) are distributed on the upper side and the lower side of the communicating pipe (15).

6. A low noise ball screw as defined in claim 1, wherein: the outer walls of two sides of the first buckle (23) and the second buckle (24) are respectively provided with a bolt (25), and the first buckle (23) and the second buckle (24) are connected through the bolts (25).