Novel composite linear motion bearing

Abstract

The utility model relates to a novel composite linear motion bearing, which belongs to the technical field of linear motion bearings and comprises a linear bearing body, one end of the linear bearing body is fixedly connected with a circular flange, and a detachable support is mounted outside the circular flange. According to the novel combined type linear motion bearing, by arranging a reset spring and a fixing block, an elastic movable sleeve can elastically move outside a mounting sleeve, and when a linear bearing body is inserted into the mounting sleeve, the linear bearing body can extrude a positioning steel ball; the linear bearing bodies can be conveniently and completely inserted into the mounting sleeve, the elastic movable sleeve is driven to move through the elastic force of the reset spring, the positioning steel balls are extruded by the fixing blocks, the linear bearing bodies can be fixed through the positioning steel balls by arranging the positioning holes, and then butt joint and fixing of the two linear bearing bodies are completed. And installation by workers is facilitated, and extra fixing tools are not needed.

Description

Technical Field

[0001] The utility model relates to the technical field of linear motion bearings, and particularly relates to a novel composite linear motion bearing. Background Technique

[0002] A linear motion bearing, also known as a linear bearing or a slide rail, is a linear motion system produced at low cost and is widely used in scenarios where it is used in conjunction with a cylindrical shaft for an infinite stroke. A linear motion bearing is a linear motion system produced at low cost for use in conjunction with a cylindrical shaft for an infinite stroke. Since the load-bearing balls are in point contact with the shaft, the applied load is small, and the steel balls rotate with extremely small frictional resistance, thus enabling high-precision smooth motion. A linear motion bearing is one of the indispensable components in mechanical equipment, and its characteristics of high precision, low friction, and high rigidity make it widely used in many fields.

[0003] The Chinese utility model patent with the publication number CN215720222U discloses a novel composite linear motion bearing, including a bearing. A square flange is fixedly sleeved on the side surface of the bearing. A fixing ring is fixedly connected to the right side of the square flange. An active block is arranged inside the fixing ring. An active sliding groove is opened on the inner side wall of the fixing ring. Through the mutual cooperation among the fixing ring, the active block, the active sliding groove, the sliding block, the dust-proof ring, the fixing rod, the spring, the limiting hole, the connecting hole, the double-headed screw rod, and the nut, the bearing on the right side of the device can be inserted into the fixing ring on the left side of the device, so as to position the bearing, and further make the positions of two adjacent devices correspond to each other and not prone to deviation. Then, the two square flanges are fixed through the double-headed screw rod and the nut, so as to fix the two devices.

[0004] However, during the use of this utility model, only through a series of structures such as springs, it can only position two linear bearings and cannot achieve the effect of direct and stable fixation. It is necessary to additionally use a double-headed screw rod and a nut for fixation. This operation increases the installation steps of the staff. At the same time, since the double-headed screw rod occupies the installation holes of the square flange, the linear bearing cannot be installed on the machine through the square flange, which cannot meet the production requirements. Therefore, a novel composite linear motion bearing is proposed to solve the problems raised above. Content of the Utility Model

[0005] Aiming at the deficiencies of the prior art, the utility model provides a new type of composite linear motion bearing, which has the advantage of being convenient for fixing two linear bearings, solves the problem that only through a series of structures such as springs, the two linear bearings can only be positioned and cannot achieve the effect of direct and stable fixation. It is necessary to additionally use a double-headed screw and a nut for fixation, which increases the installation steps of the staff. At the same time, since the double-headed screw occupies the installation holes of the square flange, the linear bearing cannot be installed on the machine through the square flange, thus failing to meet the production requirements.

[0006] To achieve the above object, the utility model provides the following technical solution: A new type of composite linear motion bearing, including a linear bearing body, one end of the linear bearing body is fixedly connected with a circular flange, a detachable bracket is installed outside the circular flange, and a detachable installation structure is arranged on the side of the circular flange away from the linear bearing body;

[0007] The detachable installation structure includes an installation sleeve fixedly connected to the side of the circular flange away from the linear bearing body, an elastic movable sleeve is slidably connected to the outside of the installation sleeve, a fixed block is fixedly connected to the inner wall of the elastic movable sleeve, a return spring is fixedly connected between the installation sleeve and the fixed block, a positioning steel ball extending to the outside of the installation sleeve is slidably connected to the inside of the installation sleeve, and a positioning hole adapted to the positioning steel ball is opened on the outer surface of the linear bearing body.

[0008] Further, the number of the positioning steel balls is ten, and the ten positioning steel balls are evenly distributed around the inside of the installation sleeve, and one end of the linear bearing body away from the circular flange extends into the inside of the installation sleeve.

[0009] Further, a limiting ring is fixedly connected to the outer surface of the installation sleeve and close to the positioning steel ball, and the side of the fixed block away from the elastic movable sleeve is in contact with the installation sleeve.

[0010] Further, a through hole adapted to the positioning steel ball is opened in the installation sleeve, the shape of the through hole is trapezoidal, and an anti-slip convex pattern is fixedly connected to the outer surface of the elastic movable sleeve.

[0011] Further, a positioning block extending into the inside of the left detachable bracket is fixedly connected to one side of the right detachable bracket, and a positioning groove adapted to the positioning block is opened on the side of the detachable bracket away from the positioning block.

[0012] Further, a fixing bolt extending into the inside of the circular flange is threadedly connected to the top of the detachable bracket, an installation hole is opened in the detachable bracket, and a flange hole is opened in the circular flange.

[0013] Further, the shape of the detachable bracket is a U shape, and a through opening for the linear bearing body to enter and exit is provided on one side of the detachable bracket. A fixing bolt is respectively distributed at the top and bottom of each detachable bracket.

[0014] Compared with the prior art, the present utility model provides a novel composite linear motion bearing, which has the following beneficial effects:

[0015] 1. For this novel composite linear motion bearing, by providing a return spring and a fixing block, the elastic movable sleeve can elastically move outside the mounting sleeve. When the linear bearing body is inserted into the mounting sleeve, the linear bearing body will squeeze the positioning steel balls, thereby facilitating the complete insertion of the linear bearing body into the mounting sleeve. Then, driven by the elastic force of the return spring, the elastic movable sleeve moves, causing the fixing block to squeeze the positioning steel balls. By providing positioning holes, the positioning steel balls can fix the linear bearing body, thus completing the docking and fixing of two linear bearing bodies, facilitating the installation by the staff without the need for additional fixing tools.

[0016] 2. For this novel composite linear motion bearing, by providing a detachable bracket and fixing bolts, it is convenient to disassemble the detachable bracket, thereby facilitating the staff to directly install the linear bearing main body using the circular flange. When it is necessary for the linear bearing main body to drive other structures to move, the detachable bracket can be installed, and then other structures can be fixed through the detachable bracket, improving the overall stability. It solves the problem that only through a series of structures such as springs, only two linear bearings can be positioned, and direct and stable fixing cannot be achieved. It is necessary to additionally use a double-headed screw and nuts for fixing, which increases the installation steps of the staff. At the same time, since the double-headed screw occupies the mounting holes of the square flange, the linear bearing cannot be installed on the machine through the square flange, unable to meet the production requirements. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is a structural cross-sectional view of the present utility model;

[0018] Figure 2 is a schematic structural diagram of the mounting sleeve of the present utility model;

[0019] Figure 3 is a three-dimensional structural view of the linear bearing main body of the present utility model.

[0020] In the figure: 1 linear bearing main body, 2 circular flange, 3 detachable bracket, 4 mounting sleeve, 5 elastic movable sleeve, 6 fixing block, 7 return spring, 8 positioning steel ball, 9 limiting ring, 10 positioning hole, 11 anti-slip convex pattern, 12 positioning block, 13 positioning groove, 14 fixing bolt, 15 flange hole, 16 mounting hole. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0021] Next, in combination with the accompanying drawings in the embodiments of the present utility model, the technical solutions in the embodiments of the present utility model will be clearly and completely described. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0022] Embodiment 1:

[0023] Please refer to Figures 1 to 3 , a new type of composite linear motion bearing in this embodiment includes a linear bearing body 1. One end of the linear bearing body 1 is fixedly connected with a circular flange 2. A detachable bracket 3 is installed outside the circular flange 2. A detachable installation structure is arranged on the side of the circular flange 2 away from the linear bearing body 1. The detachable installation structure includes a mounting sleeve 4 fixedly connected to the side of the circular flange 2 away from the linear bearing body 1. An elastic movable sleeve 5 is slidably connected to the outside of the mounting sleeve 4. A fixing block 6 is fixedly connected to the inner wall of the elastic movable sleeve 5. A return spring 7 is fixedly connected between the mounting sleeve 4 and the fixing block 6. A positioning steel ball 8 extending to the outside of the mounting sleeve 4 is slidably connected to the inside of the mounting sleeve 4. A positioning hole 10 adapted to the positioning steel ball 8 is opened on the outer surface of the linear bearing body 1.

[0024] Among them, the number of the positioning steel balls 8 is ten. The ten positioning steel balls 8 are evenly distributed around the inner circumference of the mounting sleeve 4. One end of the linear bearing body 1 away from the circular flange 2 extends into the inside of the mounting sleeve 4. A limiting ring 9 is fixedly connected to the outer surface of the mounting sleeve 4 and close to the side of the positioning steel ball 8. The side of the fixing block 6 away from the elastic movable sleeve 5 is in contact with the mounting sleeve 4.

[0025] It should be noted that a through port adapted to the positioning steel ball 8 is opened inside the mounting sleeve 4. The shape of the through port is trapezoidal. Anti-slip convex lines 11 are fixedly connected to the outer surface of the elastic movable sleeve 5. By setting the trapezoidal through port, it can prevent the positioning steel ball 8 from falling into the inside of the mounting sleeve 4, achieving the limiting effect on the positioning steel ball 8.

[0026] Embodiment 2:

[0027] Please refer to Figure 1 , on the basis of Embodiment 1, it includes a positioning block 12 fixedly connected to one side of the right detachable bracket 3 and extending into the inside of the left detachable bracket 3. A positioning groove 13 adapted to the positioning block 12 is opened on the side of the detachable bracket 3 away from the positioning block 12. A fixing bolt 14 extending into the inside of the circular flange 2 is threadedly connected to the top of the detachable bracket 3. An installation hole 16 is opened inside the detachable bracket 3. A flange hole 17 is opened inside the circular flange 2.

[0028] In this embodiment, the detachable bracket 3 is in a U-shape. A through opening allowing the linear bearing body 1 to enter and exit is provided on one side of the detachable bracket 3. A fixing bolt 14 is respectively distributed at the top and bottom of each detachable bracket 3.

[0029] With the above technical solution, by setting the detachable bracket 3 and the fixing bolt 14, it is convenient to disassemble the detachable bracket 3, and then it is convenient for the staff to directly install the linear bearing body 1 by using the circular flange 2. When it is necessary for the linear bearing body 1 to drive other structures to move, the detachable bracket 3 can be installed, and then other structures can be fixed through the detachable bracket 3, improving the overall stability.

[0030] The working principle of the above embodiment is as follows:

[0031] First, place the two linear bearing bodies 1 in a straight line. Then insert one end of one of the linear bearing bodies 1 into the inside of the mounting sleeve 4. During the insertion process, the staff moves the elastic movable sleeve 5 to the right. When the linear bearing body 1 is completely inserted into the mounting sleeve 4, the elastic movable sleeve 5 can be released, thus completing the docking installation of the two linear bearing bodies 1. Then, according to the actual situation, on the one hand, the staff can directly install the linear bearing body 1 by using the circular flange 2. On the other hand, the detachable bracket 3 can be first installed on the circular flange 2, and then other structures can be installed on the detachable bracket 3.

[0032] It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements, but also includes other elements not expressly listed, or also includes elements inherent to such process, method, article or device. Without further limitation, an element defined by the statement "including a..." does not exclude the existence of additional identical elements in the process, method, article or device including the said element.

[0033] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A novel composite linear motion bearing, comprising a linear bearing body (1), characterized in that: One end of the linear bearing body (1) is fixedly connected with a circular flange (2). A detachable bracket (3) is installed outside the circular flange (2). A detachable installation structure is arranged on the side of the circular flange (2) away from the linear bearing body (1). The detachable installation structure includes an installation sleeve (4) fixedly connected to the side of the circular flange (2) away from the linear bearing body (1). An elastic movable sleeve (5) is slidably connected to the outside of the installation sleeve (4). A fixed block (6) is fixedly connected to the inner wall of the elastic movable sleeve (5). A return spring (7) is fixedly connected between the installation sleeve (4) and the fixed block (6). A positioning steel ball (8) extending to the outside of the installation sleeve (4) is slidably connected to the inside of the installation sleeve (4). A positioning hole (10) adapted to the positioning steel ball (8) is formed on the outer surface of the linear bearing body (1).

2. A novel composite linear motion bearing according to claim 1, characterized in that: The number of the positioning steel balls (8) is ten. The ten positioning steel balls (8) are evenly distributed around the inside of the installation sleeve (4). One end of the linear bearing body (1) away from the circular flange (2) extends into the inside of the installation sleeve (4).

3. The novel composite linear motion bearing according to claim 1 is characterized in that: A limit ring (9) is fixedly connected to the outer surface of the installation sleeve (4) and close to the positioning steel ball (8). The side of the fixed block (6) away from the elastic movable sleeve (5) is in contact with the installation sleeve (4).

4. The novel composite linear motion bearing according to claim 1 is characterized in that: A through port adapted to the positioning steel ball (8) is formed inside the installation sleeve (4). The shape of the through port is trapezoidal. Anti-slip convex stripes (11) are fixedly connected to the outer surface of the elastic movable sleeve (5).

5. The novel composite linear motion bearing according to claim 1 is characterized in that: One side of the detachable bracket (3) on the right is fixedly connected with a positioning block (12) extending into the inside of the detachable bracket (3) on the left. A positioning groove (13) adapted to the positioning block (12) is formed on the side of the detachable bracket (3) away from the positioning block (12).

6. The novel composite linear motion bearing according to claim 5 is characterized in that: A fixing bolt (14) extending into the inside of the circular flange (2) is threadedly connected to the top of the detachable bracket (3). An installation hole (16) is formed inside the detachable bracket (3). A flange hole (17) is formed inside the circular flange (2).

7. The novel composite linear motion bearing according to claim 5 is characterized in that: The shape of the detachable bracket (3) is U-shaped. A through port allowing the linear bearing body (1) to enter and exit is formed on one side of the detachable bracket (3). One fixing bolt (14) is respectively distributed at the top and bottom of each detachable bracket (3).

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