Modularized linear bearing

Abstract

A modularized linear bearing comprises a retainer and is characterized in that an annular groove is formed in the top of the retainer, a rubber pad is arranged on the annular groove, a clamping containing cavity is formed in the retainer, a first clamping hole and a second clamping hole are formed in the face, close to the clamping containing cavity, of the retainer, a bearing block is clamped in the clamping containing cavity, and the bearing block is connected with the bearing block in a sleeved mode. The bearing block comprises an inner shell and an outer shell, a connecting assembly is arranged between the inner shell and the outer shell, the inner shell and the outer shell are connected through the connecting assembly, and ball assemblies are arranged in the inner shell and the outer shell; the connecting assembly comprises a connecting strip and a limiting strip, and the connecting strip and the limiting strip on the inner shell are matched and clamped with the connecting strip and the limiting strip on the outer shell, so that the stability is improved, the structural strength and the rigidity are improved, a relatively large load can be borne, the bearing capacity of the linear bearing is effectively improved, and the connecting strength between structures is effectively enhanced; and the operation precision of the linear bearing is improved, and the linear bearing is convenient to disassemble and maintain after later use.

Description

TECHNICAL FIELD

[0001] The utility model relates to linear bearing technical field, concretely relates to a modular linear bearing. BACKGROUND

[0002] Linear bearing is a kind of linear motion system, for linear stroke and cylindrical shaft cooperation. Since bearing ball and bearing housing point contact, steel ball rolls with minimum frictional resistance, so linear bearing has small friction, and it is more stable, does not change with bearing speed, can obtain high sensitivity, high precision smooth linear motion. Linear bearing is widely used in precision machine tool, textile machinery, food packaging machinery, printing machinery and other industrial machinery sliding parts. The existing linear bearing is usually designed as close fit to ensure its stability and precision when running. However, this close fit design also brings the problem of difficult disassembly. Once the bearing is installed on the shaft, due to its close fit, disassembly becomes quite difficult. When the bearing needs to be repaired or replaced, special tools or equipment may be needed to disassemble, which undoubtedly increases the time and cost of maintenance, and the internal structure of linear bearing is complex, and the maintenance difficulty is higher. SUMMARY

[0003] In order to solve the above problems, the utility model provides a kind of modular linear bearing:

[0004] A kind of modular linear bearing, including retainer, its characterized in that: the retainer top is equipped with ring groove, the ring groove is equipped with rubber pad, the retainer is equipped with clamping cavity, the retainer is equipped with first clamping hole and second clamping hole on one side of clamping cavity, the clamping cavity is clamped with bearing block, the bearing block includes inner shell and outer shell, the inner shell and outer shell are equipped with connecting assembly, the inner shell and outer shell are connected by connecting assembly, the inner shell and outer shell are equipped with ball assembly;The connecting assembly includes connecting strip at the inner side of inner shell and outer shell near both ends, and limiting strip at the middle of inner shell and outer shell, the connecting strip and limiting strip on the inner shell and the connecting strip and limiting strip on the outer shell are matched and clamped, effectively improve the stability of linear bearing, have higher structural strength and rigidity, can bear larger load, effectively improve the carrying capacity of linear bearing, can keep stable performance under high load, the connection strength between structures is effectively enhanced, improve the running accuracy of linear bearing, facilitate disassembly and maintenance of linear bearing after later use.

[0005] Preferably, the inner shell comprises a clamping assembly, the clamping assembly comprises a clamping column and a limiting column, the clamping column and the limiting column correspond to the first clamping hole and the second clamping hole respectively, the top surface and the bottom surface of the inner shell are provided with grooves, the two sides of the inner shell are provided with clamping interfaces, and the inner shell is provided with an opening near the axis, so that the assembly of the linear bearing is more convenient and stable, and the performance and efficiency of the linear bearing are improved.

[0006] Preferably, the outer shell comprises a protruding block, the protruding block is located on the two sides of the outer shell, the protruding block is clamped with the clamping interface, the outer shell is fixedly connected with a groove body on the outer side, the top surface and the bottom surface of the outer shell are provided with annular protruding parts, and the annular protruding parts are provided with pressing grooves corresponding to the grooves, so that the load capacity and the aligning function of the bearing are improved.

[0007] Preferably, the groove body is clamped with an aligning block, the two side surfaces of the groove body are provided with anti-skid strips, and the anti-skid strips are fixedly connected with the outer shell, so that the aligning performance and the stability of the bearing are enhanced, and the safety and reliability of the overall structure are improved.

[0008] Preferably, the connecting strips and the limiting strips on the inner shell are provided with clamping grooves, and the connecting strips and the limiting strips on the outer shell are provided with clamping blocks corresponding to the clamping grooves.

[0009] Preferably, the ball assembly comprises an annular raceway formed by the connecting strips and the outer shell and the inner shell, and the annular raceway is provided with balls, so that friction is reduced, and the efficiency and the service life of the bearing are improved.

[0010] The utility model has the beneficial effect that:

[0011] 1. Through the design of the retainer, the bearing is more stable during operation, and the overall stability of the bearing is improved; through the design of the bearing block, the linear bearing has higher structural strength and rigidity, and can maintain stable performance under high load.

[0012] 2. Through the design of the inner shell and the outer shell, the retainer can be conveniently connected, the stability of the connection is ensured, the connection strength between the inner shell and the outer shell is enhanced, the assembly of the bearing is more convenient, and the operation precision of the linear bearing is greatly improved; through the design of the connecting assembly and the ball assembly, the connection between the inner shell and the outer shell is more stable, the load capacity of the bearing is improved, and the assembly and disassembly of the bearing block are facilitated. BRIEF DESCRIPTION OF DRAWINGS

[0013] Figure 1 It is a structural schematic view of the utility model;

[0014] Figure 2 It is an explosion view of the utility model;

[0015] Figure 3 is Figure 2 enlarged view of A in the middle;

[0016] Figure 4 is Figure 2 enlarged view of B in the middle;

[0017] Figure 5 is a structural schematic view of the bearing block of the utility model;

[0018] Figure 6 is a left view of the bearing block of the utility model;

[0019] Figure 7 is a structural schematic view of the inner shell of the utility model;

[0020] Figure 8 is a front view of the outer shell of the utility model;

[0021] Figure 9 is a rear view of the outer shell of the utility model.

[0022] Reference signs: 1, retainer; 101, rubber pad; 102, clamping cavity; 103, first clamping hole; 104, second clamping hole; 105, ring groove; 2, bearing block; 3, inner shell; 301, clamping assembly; 311, clamping column; 312, limiting column; 302, groove; 303, clamping port; 304, opening; 4, outer shell; 401, protruding block; 402, groove body; 421, aligning block; 403, anti-skid strip; 404, pressing groove; 405, annular protruding part; 5, connecting assembly; 501, connecting strip; 502, limiting strip; 503, clamping groove; 504, clamping block; 6, ball assembly; 601, ball; 602, annular raceway. DETAILED DESCRIPTION

[0023] The utility model is further explained below in combination with the drawings. Figures 1-9 The utility model is further explained below in combination with the drawings.

[0024] As Figures 1-3As shown: a kind of modular linear bearing of the embodiment, including retainer 1, it is characterized in that: the top of the retainer 1 is equipped with ring groove 105, the ring groove 105 is equipped with rubber pad 101, the retainer 1 is equipped with clamping cavity 102, the retainer 1 is equipped with first clamping hole 103 and second clamping hole 104 near clamping cavity 102, the clamping cavity 102 is clamped with bearing block 2, the bearing block 2 includes inner shell 3 and outer shell 4, connecting assembly 5 is equipped between the inner shell 3 and the outer shell 4, the inner shell 3 and the outer shell 4 are connected by connecting assembly 5, ball assembly 6 is equipped in the inner shell 3 and the outer shell 4;The connecting assembly 5 includes the connecting strip 501 of being equipped with the inner side of inner shell 3 and outer shell 4 near two ends and the limiting strip 502 of being equipped with the middle part of inner shell 3 and outer shell 4, the connecting strip 501 and the limiting strip 502 on the inner shell 3 are matched with the connecting strip 501 and the limiting strip 502 on the outer shell 4 and are clamped.

[0025] As Figures 3-6 shown: the inner shell 3 includes clamping assembly 301, the clamping assembly 301 includes clamping column 311 and limiting column 312, the clamping column 311 is located in the middle part of the top surface and bottom surface of inner shell 3, the limiting column 312 is located at the top near the right end and the bottom near the left end, the clamping column 311 and the limiting column 312 correspond to the first clamping hole 103 and the second clamping hole 104 respectively, the top surface and the bottom surface of the inner shell 3 are provided with recess 302, the recess 302 on the top surface is located at the top of the inner shell 3 near the right end, the recess 302 on the bottom surface is located at the bottom of the inner shell 3 near the left end, the two sides of the inner shell 3 are respectively provided with two clamping interfaces 303, the inner shell 3 is provided with opening 304 near the axis surface, the opening 304 is in the shape of half annular raceway 602.

[0026] As Figure 5 , Figures 8-9 shown: the outer shell 4 includes convex block 401, the convex block 401 is located on the two sides of the outer shell 4, the convex block 401 is clamped with the clamping interface 303, the outer side of the outer shell 4 is fixedly connected with groove 402, the groove 402 is clamped with aligning block 421, the two side surfaces of the groove 402 are provided with anti-skid strip 403, the anti-skid strip 403 is fixedly connected with the outer shell 4, the top surface and the bottom surface of the outer shell 4 are provided with annular convex part 405, the annular convex part 405 is provided with pressing groove 404 corresponding to the recess 302.

[0027] As Figures 5-8 shown: the connecting strip 501 and the limiting strip 502 on the inner shell 3 are provided with clamping groove 503, the connecting strip 501 and the limiting strip 502 on the outer shell 4 are provided with clamping block 504 corresponding to the clamping groove 503.

[0028] As Figure 5 andFigures 7-8 As shown: the ball assembly 6 includes annular raceway 602, the annular raceway 602 is formed by connecting strip 501 and outer shell 4, inner shell 3, the annular raceway 602 is equipped with ball 601.

[0029] The utility model uses when: when needing to disassemble linear bearing, the clamping column 311 and the limiting column 312 of the top and bottom of the inner shell 3 on the bearing block 2 are taken out from the first clamping hole 103 and the second clamping hole 104 on the retainer 1, the bearing block 2 can be separated from the retainer, and the damaged bearing block 2 can be replaced, when disassembling and maintaining the bearing block 2, the ball 601 can be lubricated from the clamping interface on the inner shell 3 and the opening 304 after the bearing block 2 is taken out, the outer shell 4 can be separated from the inner shell 3 after the convex block 401 on the outer shell 4 is removed from the clamping interface 303, the recess 302 on the inner shell 3 and the pressing groove 404 on the outer shell 4 are more convenient to disassemble, the ball 601 in the ball assembly 6 can be replaced after the inner shell 3 and the outer shell 4 are disassembled, the adjusting block 421 in the groove body 402 is removed from the groove body 402.

[0030] Obviously, the above embodiments of the utility model are only for illustration, and are not limited to the embodiments of the utility model. For ordinary skilled in the art, other different forms of changes or variations can be made on the basis of the above description. All the embodiments do not need to be exhausted. The obvious changes or variations extended from the essential spirit of the utility model still belong to the protection scope of the utility model.

Claims

1. A modular linear bearing, comprising a cage (1), characterized in that: The top of the retainer (1) is provided with an annular groove (105), and a rubber pad (101) is provided on the annular groove (105). The retainer (1) is provided with a snap-fit ​​cavity (102). The retainer (1) is provided with a first snap-fit ​​hole (103) and a second snap-fit ​​hole (104) on the side near the snap-fit ​​cavity (102). A bearing block (2) is snapped into the snap-fit ​​cavity (102). The bearing block (2) includes an inner shell (3) and an outer shell (4). A connecting component (5) is provided between the inner shell (3) and the outer shell (4). The inner shell (3) and the outer shell (4) are connected by the connecting component (5). A ball bearing assembly (6) is provided in the inner shell (3) and the outer shell (4). The connecting component (5) includes a connecting strip (501) located near both ends of the inner shell (3) and the outer shell (4), and a limiting strip (502) located in the middle of the inner shell (3) and the outer shell (4). The connecting strip (501) and the limiting strip (502) on the inner shell (3) are matched and snapped together with the connecting strip (501) and the limiting strip (502) on the outer shell (4).

2. A modular linear bearing according to claim 1, characterized in that: The inner housing (3) includes a snap-fit ​​assembly (301), which includes a snap-fit ​​post (311) and a limiting post (312). The snap-fit ​​post (311) and the limiting post (312) correspond to the first snap-fit ​​hole (103) and the second snap-fit ​​hole (104) respectively. The top and bottom surfaces of the inner housing (3) are provided with grooves (302). The two sides of the inner housing (3) are provided with snap-fit ​​interfaces (303). The near-axial surface of the inner housing (3) is provided with an opening (304).

3. A modular linear bearing according to claim 1, characterized in that: The outer shell (4) includes a protrusion (401) located on both sides of the outer shell (4). The protrusion (401) is engaged with the card interface (303). A groove (402) is fixedly connected to the outer side of the outer shell (4). The top and bottom surfaces of the outer shell (4) are provided with annular protrusions (405). The annular protrusions (405) are provided with pressing grooves (404) corresponding to the grooves (302).

4. A modular linear bearing according to claim 3, characterized in that: A self-aligning block (421) is snapped into the groove (402), and anti-slip strips (403) are provided on both sides of the groove (402). The anti-slip strips (403) are fixedly connected to the outer shell (4).

5. A modular linear bearing according to claim 1, characterized in that: The connecting strip (501) and limiting strip (502) on the inner shell (3) are provided with snap-fit ​​grooves (503), and the connecting strip (501) and limiting strip (502) on the outer shell (4) are provided with snap-fit ​​blocks (504) that snap-fit ​​with the snap-fit ​​grooves (503).

6. A modular linear bearing according to claim 1, characterized in that: The ball assembly (6) includes an annular raceway (602), which is formed by a connecting strip (501), an outer shell (4), and an inner shell (3). Balls (601) are provided on the annular raceway (602).

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