CN219712056U - Mute linear bearing - Google Patents

Abstract

The utility model discloses a mute linear bearing, which comprises a sliding block body, wherein a sliding groove opening is formed in the sliding block body, rolling grooves are formed in the left side and the right side of the sliding groove opening, round hole circulating channels are formed in the side ends of the two rolling grooves, end covers are fixed at the front end and the rear end of the sliding block body, ball whirling grooves are formed in the two end covers, an arc-shaped baffle strip is arranged between the two end covers, a group of balls are arranged at the rolling grooves, the round hole circulating channels and the ball whirling grooves, and dustproof scraping plates are fixed at the end parts of the two end covers. The linear bearing has the advantages of ingenious and reasonable structural design, low noise when in operation, smooth operation and good stability, and is worthy of popularization and application.

Description

Mute linear bearing

Technical Field

The utility model relates to a rolling functional component, in particular to a sliding component applied to a guide rail, and especially relates to a mute linear bearing.

Background

The linear bearing on the guide rail is a common component in a mechanical mechanism, plays a role in guiding and supporting, is used for driving the component to move at a high speed, stably and accurately, is commonly used on automatic equipment, however, the traditional sliding block is operated on a rail groove of the guide rail by utilizing a plurality of groups of steel balls in surface contact, the generated noise is large, and on the occasion of working conditions requiring noise, the generated noise can directly influence the production of products (such as chip processing and high-tone acoustic processing), so that the problem is solved, the lubricant is conventionally added to the linear bearing or the operation speed of the equipment is reduced, so that the noise reduction is small enough, the lubricant is added, although the friction force and the noise can be reduced, the frequent shutdown addition is required, the production of the products can be influenced, and if the operation speed of the equipment is reduced, the production efficiency of the products can also be influenced.

The Chinese patent No. 209524001U discloses a novel sliding block, which comprises a sliding block body, wherein a sliding port is formed in the sliding block body, an end cover is arranged on the sliding block body, semicircular rolling grooves are formed in the sliding port, channel holes are formed in the side parts of the rolling grooves, bead returning devices are fixed on the left side and the right side of the sliding block body, each bead returning device comprises a base body, a rotary channel is arranged on the base body, an opening end is arranged on the rotary channel, end covers are fixed on the left side and the right side of the sliding block body, rotary grooves are formed in the end covers, steel balls are arranged at the rolling grooves, a lower retainer is arranged on the sliding block body, arc-shaped blocking parts are arranged on the two lower retainers, an upper retainer is fixed on the end face of the sliding port, blocking parts are fixed on the inner end and the outer end of the upper retainer, end face sealing gaskets are fixed on the side surfaces of the two end covers, and bottom face sealing dustproof gaskets are fixed on the inner side and the outer side of the two end covers. The sliding block is driven to run on the guide rail by the way that the upper row of balls and the lower row of balls run in the rolling groove, the surfaces of the balls are contacted with the rolling groove, the noise generated by the surfaces of the balls and the rolling groove is large (the balls are more and the surfaces are contacted with each other, so the noise generated by the sliding block is large during running), and the sliding block is unfavorable for being used under the low-noise working condition environment.

Disclosure of Invention

The utility model aims to solve the defects of the prior art, and provides the mute linear bearing which has extremely low noise and almost can reach a mute state during operation, thereby meeting the requirement that a user can rapidly and efficiently produce products under the mute working condition.

The utility model solves the technical problems by adopting the technical scheme that: the mute linear bearing comprises a sliding block body, wherein a sliding groove opening is formed in the sliding block body, rolling grooves which are in a transverse V shape are formed in the left side and the right side of the sliding groove opening, round hole circulating channels which are formed in the positions of the sliding block body are formed in the side ends of the two rolling grooves, end covers are fixed at the front end and the rear end of the sliding block body, ball rotating grooves are formed in the two end covers, one ends of the ball rotating grooves are connected with the round hole circulating channels, the other ends of the ball rotating grooves are connected with the rolling grooves, a pair of arc-shaped baffle strips which are respectively located at the side ends of the two rolling grooves are arranged between the two end covers, a group of balls are respectively arranged at the rolling grooves, the round hole circulating channels and the ball rotating grooves, and the end parts of the two end covers are respectively fixed with dustproof scraping plates. The function of the slide opening is that the slide block can be sleeved on the guide rail to run; the rolling groove, the round hole circulation channel, the end cover and the ball convolution groove have the functions of reducing the contact area by utilizing the point contact of the balls on the sliding block body and the guide rail, thereby reducing the friction area with the guide rail when the sliding block body moves, further greatly reducing the noise when the linear shaft moves, and further achieving silence; the arc-shaped stop strip has the function of avoiding the ball from falling out of the rolling groove without bearing the load force of the ball; the ball is in point contact with the rolling groove, rolling friction of the ball is exerted on the rolling groove and the V-shaped rail groove of the guide rail when the linear bearing moves, the ball is in point contact with the rolling groove and the V-shaped rail groove, the contact area is small, and the linear bearing can achieve silence when moving and has extremely low noise; the dustproof scraper blade's effect is here, can make dustproof scraper blade subsides in the top surface and the left and right side department of guide rail to avoid making suspended particles such as dust, dust enter into the slider from slider top, lateral part and bottom and then attach on the ball and cause ball wearing and tearing aggravation, influence linear bearing's practical life, and also can strike off the filth that attaches on the guide rail, avoid influencing the rolling operation of ball on the slider body.

Further perfecting, the inner surfaces of the rolling groove, the round hole circulating channel and the ball rotary groove are all provided with a self-lubricating layer made of tin bronze materials. The self-lubricating layer has the functions of enabling the rolling balls to have smaller friction resistance, smoother operation and extremely low operation noise when the rolling grooves, the round hole circulation channels and the rolling ball convolution grooves operate; the tin bronze material has self-lubricating property, wear resistance and corrosion resistance.

Further perfecting, the surface of each ball is provided with a group of spherical notches. Here the spherical recess has the effect that grease can adhere to the spherical recess, so that the balls run with less friction, smoother running, noise and low running.

Further perfecting, the lower parts of the two circular hole circulating channels are respectively provided with a grease injection channel which is arranged on the sliding block body, and the bottom ends of the two grease injection channels are respectively connected with a plug in a threaded manner. The grease injecting channel and the plug have the functions of injecting lubricating grease into the circular hole circulating channel, so that the running friction force of each ball is smaller, the running is smoother, and the noise generated by the running is lower.

Further perfecting, the left end face, the right end face and the bottom face of the sliding block body are covered with sound insulation and absorption cotton. The sound insulation and absorption cotton has the effects that noise generated when the linear bearing moves can be isolated and absorbed, so that the linear bearing is quieter when sliding; the sound insulation and absorption cotton is made of the existing materials in the market, and can be selected from products of the companies such as the Shangshan south sea scenery building materials limited company, jiangsu Hua Yi foam technology limited company and the like.

Further perfecting, the top end of the sliding block body is provided with a threaded mounting hole. The function of the threaded mounting hole is that the movable table can be conveniently mounted and fixed at the linear bearing through the threaded mounting hole.

The beneficial effects of the utility model are as follows:

1) The contact area of the ball is small, and the noise is low when the ball is operated;

2) The linear bearing is stable in operation, and can be limited and moved up, down, left and right;

3) The components are few, the installation efficiency is high, and the production cost is low;

4) The triple additional friction and noise reduction modes of spherical notches, lubricating grease and sound insulation and absorption cotton are adopted, so that the linear shaft can be in mute operation.

Drawings

FIG. 1 is a perspective view of the present utility model;

FIG. 2 is a schematic diagram of the structure of the present utility model;

FIG. 3 is an enlarged partial view of area A of FIG. 2;

FIG. 4 is a section B-B of FIG. 2;

fig. 5 is a partial enlarged view of a region C of fig. 4.

Reference numerals illustrate: the novel self-lubricating device comprises a sliding block body 1, a sliding groove opening 1-1, a rolling groove 1-2, a circular hole circulation channel 1-3, a threaded mounting hole 1-5, an end cover 2, a ball convolution groove 2-1, an arc-shaped baffle strip 3, balls 4, a spherical notch 4-1, a dustproof scraper 5, a self-lubricating layer 6, a plug 7, sound insulation and absorption cotton 8, a guide rail 9,V-shaped rail groove 9-1 and a first self-lubricating layer 9-2.

Detailed Description

The utility model is further described below with reference to the accompanying drawings:

referring to the drawings: the mute linear bearing comprises a sliding block body 1, wherein a sliding groove opening 1-1 is formed in the sliding block body 1, and the mute linear bearing is characterized in that: the left side and the right side of the chute opening 1-1 are respectively provided with a rolling groove 1-2 in a transverse V shape, the side ends of the two rolling grooves 1-2 are respectively provided with a round hole circulation channel 1-3 which is arranged at the position of the sliding block body 1, the front end and the rear end of the sliding block body 1 are respectively fixed with end covers 2, the two end covers 2 are respectively provided with a ball convolution groove 2-1, one end of the ball convolution groove 2-1 is connected with the round hole circulation channel 1-3, the other end of the ball convolution groove 2-1 is connected with the rolling groove 1-2, a pair of arc-shaped baffle strips 3 which are respectively arranged at the side ends of the two rolling grooves 1-2 are arranged between the two end covers 2, a group of balls 4 are respectively arranged at the rolling groove 1-2, the round hole circulation channel 1-3 and the ball convolution groove 2-1, and the end parts of the two end covers 2 which are in point contact with the rolling grooves 1-2 are respectively fixed with dustproof scraping plates 5.

The inner surfaces of the rolling groove 1-2, the round hole circulation channel 1-3 and the ball rotary groove 2-1 are respectively provided with a self-lubricating layer 6 made of tin bronze materials.

The surface of each ball 4 is provided with a set of spherical recesses 4-1.

The lower parts of the two circular hole circulation channels 1-3 are respectively provided with a grease injection channel 1-4 which is arranged on the sliding block body 1 and communicated with the circular hole circulation channels 1-3, and the bottom ends of the two grease injection channels 1-4 are respectively connected with a plug 7 in a threaded manner.

The left and right end surfaces and the bottom surface of the slide block body 1 are covered with sound insulation and absorption cotton 8.

The top end of the sliding block body 1 is provided with a threaded mounting hole 1-5.

The working principle of the utility model is as follows: the method comprises the steps of firstly installing one end of an arc-shaped baffle strip 3 on one end cover 2, fixing the end cover 2 on one side at a position of a sliding block body 1 through a fastener, then filling balls 4 in a rolling groove 1-2, filling ball convolution grooves 2-1 in the end cover 2 on the other side, installing the other end of the arc-shaped baffle strip 3 on the end cover 2 on the other side, fixing the end cover 2 on the sliding block body 1 through the fastener, and then fixing a dustproof scraping plate 5 on the end cover 2 through the fastener.

While the utility model has been shown and described with reference to a preferred embodiment, it will be understood by those of ordinary skill in the art that various changes in form and details may be made therein without departing from the scope of the utility model.

Claims (6)

1. The utility model provides a silence formula linear bearing, includes slider body (1), it has spout opening (1-1), characterized by to open on slider body (1): the utility model discloses a dust-proof scraper blade, including slider body (1), spout opening (1-1), rolling groove (1-2), two are all opened to the left and right both sides of spout opening (1-1) be horizontal V form rolling groove (1-2), two the side of rolling groove (1-2) all is equipped with round hole circulation channel (1-3) of opening in slider body (1) department, the front and back end of slider body (1) all are fixed with end cover (2), two all be provided with ball groove (2-1) that circles round on end cover (2), the one end and round hole circulation channel (1-3) of ball groove (2-1) link up together, the other end and the rolling groove (1-2) of ball groove (2-1) link up together, two install a pair of arc shelves strip (3) that are located two respectively between end cover (2) rolling groove (1-2), round hole circulation channel (1-3) and ball groove (2-1) department all install a set of rolling ball (4), the tip of two end cover (2) all are fixed with dust-proof scraper blade (5).

2. A mute linear bearing as claimed in claim 1, wherein: the inner surfaces of the rolling groove (1-2), the round hole circulation channel (1-3) and the ball convolution groove (2-1) are respectively provided with a self-lubricating layer (6) made of tin bronze materials.

3. A mute linear bearing as claimed in claim 2, wherein: the surface of each ball (4) is provided with a group of spherical notches (4-1).

4. A mute linear bearing as claimed in claim 3, wherein: the lower parts of the two circular hole circulating channels (1-3) are respectively provided with a grease injection channel (1-4) which is arranged on the sliding block body (1), and the bottom ends of the two grease injection channels (1-4) are respectively connected with a plug (7) in a threaded manner.

5. The mute linear bearing of claim 4, wherein: the left end face, the right end face and the bottom face of the sliding block body (1) are covered with sound insulation and absorption cotton (8).

6. A mute linear bearing as claimed in claim 1, wherein: the top end of the sliding block body (1) is provided with a threaded mounting hole (1-5).