Linear bearing sliding film
By designing the structure and sliding friction contact surface of automatic sewage discharge in the linear bearing sliding membrane, the problems of traditional linear bearings being stuck and noisy in environments such as dirt are solved, achieving smooth operation and low noise.
Patent Information
- Application Number
- CN202421621095.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-09
- Publication Date
- 2025-03-18
- Estimated Expiration
- 2034-07-09
AI Technical Summary
Traditional metal ball linear bearings are prone to jamming, running beads and other phenomena in the presence of dirt, dust or sand, and are noisy.
A linear bearing sliding membrane is designed. The sliding membrane body is equipped with long serration grooves, give way grooves, short serration grooves and other structures, which can automatically discharge sewage and reduce gaps. The contact surfaces between the sliding membrane and the linear guide rail are designed with sliding friction, producing a lower friction sound.
It realizes smooth operation in dirt, dust or sand, dirt can be quickly brought out, the noise is very low, and it is suitable for dry operation conditions.
Smart Images
Figure CN222633654U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of linear bearings, in particular to a linear bearing sliding film. Background Art
[0002] Mechanical transmission mechanisms usually require bearings to provide stable support when working, in order to reduce the friction coefficient generated during movement and ensure the accuracy of transmission. The working environment of mechanical transmission mechanisms varies. Some working environments contain dirt, dust, sand and other contaminants, which are easy to adhere to the gaps on the bearing surface.
[0003] Linear bearings are a type of bearing that mainly support the base of linear motion. Traditional linear bearings are mostly metal ball linear bearings, which have many gaps and holes. Metal ball linear bearings are prone to jamming, ball running, etc. in the presence of dirt, dust or sand, and may even cause the shaft to be strained due to jamming. In addition, metal ball linear bearings will make noise due to the collision between the ball and the retaining frame during movement, and this noise will increase with the increase of speed. Utility Model Content
[0004] The technical problem to be solved by the utility model is to provide a linear bearing sliding film which can automatically discharge dirt, has a small gap and runs smoothly.
[0005] The utility model discloses a linear bearing sliding membrane, comprising a sliding membrane body, a side wall of the sliding membrane body being provided with an opening for installing a linear guide rail, the internal cross section of the sliding membrane body being a rectangle, the opening being provided at a corner of the rectangle, vertical clearance adjustment teeth and horizontal clearance adjustment teeth being arranged inside the sliding membrane body, the contact surfaces of the vertical clearance adjustment teeth and the horizontal clearance adjustment teeth with the linear guide rail being inclined surfaces inclined inwardly in the direction of the opening, and a plurality of short sawtooth grooves being processed on the internal side wall of the sliding membrane body.
[0006] The utility model discloses a linear bearing sliding film, wherein the vertical gap adjusting teeth are arranged along the vertical direction, and the horizontal gap adjusting teeth are arranged along the horizontal direction.
[0007] The utility model discloses a linear bearing sliding film, wherein the vertical gap adjusting teeth and the horizontal gap adjusting teeth are arranged inside the sliding film body and on two sides adjacent to the openings.
[0008] The utility model discloses a linear bearing sliding film, wherein a plurality of short sawtooth grooves are arranged in parallel along the length direction of the sliding film body.
[0009] The utility model discloses a linear bearing sliding film, wherein the short sawtooth grooves are arranged on two side walls inside the sliding film body away from the opening.
[0010] The utility model discloses a linear bearing sliding film, wherein long sawtooth grooves are respectively processed between the vertical clearance adjustment teeth and the horizontal clearance adjustment teeth and the outer wall of the sliding film body.
[0011] The utility model discloses a linear bearing sliding film, wherein the other three corners of the inner rectangle of the sliding film body except the opening are processed with giving way grooves.
[0012] The utility model discloses a linear bearing sliding membrane, wherein the outside of the sliding membrane body is provided with a plurality of installation limit blocks along the circumferential direction.
[0013] The utility model discloses a linear bearing sliding film, wherein the sliding film body is cylindrical as a whole.
[0014] The difference between the linear bearing sliding membrane of the utility model and the prior art is that the long serrated grooves, the give way grooves, the short serrated grooves and other structures arranged inside the sliding membrane body of the linear bearing sliding membrane of the utility model can allow the bearing to run smoothly in dirt, dust or sand, so that the dirt can quickly fall into the designed grooves, and through continuous linear motion, the dirt can be finally taken out of the linear bearing system from the grooves. The vertical gap adjustment teeth and the horizontal gap adjustment teeth arranged inside the sliding membrane body are provided with inclined surfaces when in contact with the linear guide rail, which can produce a pre-tightening effect when in contact and eliminate the gap between the contact surfaces. The contact surface between the sliding membrane body and the linear guide rail is designed for sliding friction, and only a low friction sound is emitted during operation, and the operating noise is very low.
[0015] The linear bearing sliding film of the utility model is further described below in conjunction with the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] Figure 1 This is a schematic diagram of the structure of the sliding film of the linear bearing of the utility model;
[0017] Figure 2 This is a front view of the sliding film of the linear bearing of the utility model;
[0018] Figure 3 This is a diagram showing the use status of the sliding film of the linear bearing of the utility model;
[0019] Figure 4 An exploded view of the use state of the sliding film of the linear bearing of the utility model;
[0020] The markings in the figure are as follows: 1-sliding membrane body; 2-horizontal gap adjustment tooth; 3-installation limit block; 4-vertical gap adjustment tooth; 5-gap groove; 6-short serrated groove; 7-long serrated groove; 8-linear guide rail; 9-base. DETAILED DESCRIPTION
[0021] The following embodiments are used to illustrate the present invention but are not intended to limit the scope of the present invention.
[0022] Example
[0023] like Figure 1-Figure 4 As shown, the linear bearing sliding membrane of the utility model is installed on a linear guide rail 8 and is used to support a base 9 sliding on the linear guide rail 8, and specifically includes a sliding membrane body 1.
[0024] The sliding membrane body 1 is cylindrical as a whole, and an opening is provided on the side wall of the sliding membrane body 1 , and the opening is used for installing the linear guide rail 8 .
[0025] The internal cross-section of the sliding membrane body 1 is rectangular, and the opening is opened at a corner of the rectangle. Vertical gap adjustment teeth 4 and horizontal gap adjustment teeth 2 are processed on the two sides adjacent to the opening inside the sliding membrane body 1, wherein the vertical gap adjustment teeth 4 are arranged in the vertical direction, and the horizontal gap adjustment teeth 2 are arranged in the horizontal direction. When the sliding membrane body 1 is connected to the linear guide rail 8, the vertical gap adjustment teeth 4 and the horizontal gap adjustment teeth 2 are in contact with the vertical surface and the horizontal surface of the linear guide rail 8 respectively to form a sliding surface. The contact surface between the vertical gap adjustment teeth 4 and the horizontal gap adjustment teeth 2 and the linear guide rail 8 is an inclined surface inclined inwardly in the direction of the opening, so that the vertical gap adjustment teeth 4 and the horizontal gap adjustment teeth 2 produce a pre-tightening effect when they contact the linear guide rail 8, eliminating the gap between the contact surfaces.
[0026] Several short serrated grooves 6 are processed on the two side walls away from the opening inside the sliding membrane body 1. The several short serrated grooves 6 are opened in parallel along the length direction of the sliding membrane body 1, so that dirt can quickly fall into the designed grooves, and through continuous linear motion, the dirt is finally brought out of the linear bearing system from the grooves, so that the sliding membrane can be suitable for dry running conditions with more dirt.
[0027] Long sawtooth grooves 7 are respectively processed between the vertical gap adjustment teeth 4 and the horizontal gap adjustment teeth 2 and the outer wall of the sliding membrane body 1, and the other three corners of the inner rectangle of the sliding membrane body 1 except the opening are processed with clearance grooves 5. The functions of the long sawtooth grooves 7 and the clearance grooves 5 are the same as those of the short sawtooth grooves 6.
[0028] A plurality of installation limit blocks 3 are installed along the circumferential direction on the outside of the sliding membrane body 1 . The installation limit blocks 3 are installed in cooperation with the guide grooves processed inside the base 9 to play the role of fixing the base 9 .
[0029] The utility model linear bearing sliding film is particularly suitable for dry running conditions. The long sawtooth groove, the give way groove, the short sawtooth groove and other structures arranged inside the sliding film body can allow the bearing to run smoothly in dirt, dust or sand, so that the dirt quickly falls into the designed groove, and through continuous linear motion, the dirt is finally taken out of the linear bearing system from the groove. The contact surface between the sliding film body and the linear guide rail is designed for sliding friction, and only a low friction sound is emitted during operation, and the operating noise is very low.
[0030] Although the utility model has been described in detail above with general descriptions and specific embodiments, it is obvious to those skilled in the art that some modifications or improvements can be made to the utility model. Therefore, these modifications or improvements made without departing from the spirit of the utility model are within the scope of protection claimed by the utility model.
Claims
1. A linear bearing sliding film, characterized in that: It includes a sliding membrane body, and an opening for installing a linear guide rail is opened on the side wall of the sliding membrane body. The internal cross-section of the sliding membrane body is a rectangle, and the opening is opened at a corner of the rectangle. Vertical gap adjustment teeth and horizontal gap adjustment teeth are arranged inside the sliding membrane body. The contact surfaces of the vertical gap adjustment teeth and the horizontal gap adjustment teeth with the linear guide rail are inclined surfaces inclined inwardly in the opening direction, and a plurality of short serrated grooves are processed on the internal side wall of the sliding membrane body.
2. The linear bearing sliding film according to claim 1, characterized in that: The vertical gap adjusting teeth are arranged along the vertical direction, and the horizontal gap adjusting teeth are arranged along the horizontal direction.
3. The linear bearing sliding film according to claim 1, characterized in that: The vertical gap adjustment teeth and the horizontal gap adjustment teeth are arranged inside the sliding membrane body, on two sides of the adjacent openings.
4. The linear bearing sliding film according to claim 1, characterized in that: A plurality of short sawtooth grooves are arranged in parallel along the length direction of the sliding membrane body.
5. The linear bearing sliding film according to claim 1, characterized in that: The short sawtooth grooves are arranged on two side walls of the sliding membrane body away from the opening.
6. The linear bearing sliding film according to claim 1, characterized in that: Long sawtooth grooves are respectively processed between the vertical gap adjustment teeth and the horizontal gap adjustment teeth and the outer wall of the sliding membrane body.
7. The linear bearing sliding film according to claim 1, characterized in that: The three corners of the inner rectangle of the sliding membrane body except the opening are processed with clearance grooves.
8. The linear bearing sliding film according to claim 1, characterized in that: A plurality of installation limit blocks are arranged on the outside of the sliding membrane body along the circumferential direction.
9. The linear bearing sliding film according to claim 1, characterized in that: The sliding membrane body is cylindrical as a whole.