Double-flange linear bearing

Abstract

The utility model relates to the technical field of linear bearings, in particular to a double-flange linear bearing which comprises a linear bearing body, the front end and the rear end of the linear bearing body are sleeved with a first bearing sleeve and a second bearing sleeve respectively, and the ends, away from each other, of the first bearing sleeve and the second bearing sleeve are fixedly connected with assembly flanges. A connecting block is fixedly connected to the rear end of the first bearing sleeve, inserting blocks are fixedly connected to the left end and the right end of the back face of the connecting block, and a connecting sleeve is fixedly connected to the position, corresponding to the connecting block, of the front end of the second bearing sleeve. By means of the design, the assembling flange can be rapidly installed, the linear bearing body can be conveniently debugged, meanwhile, lubricating oil can be accurately added into the bearing ball, operation is easy, the debugging effect of the linear bearing body is guaranteed, and waste of the lubricating oil can be avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of linear bearings, and particularly relates to a double-flange linear bearing. Background Art

[0002] Linear bearings are common components in mechanical equipment and are used in conjunction with cylindrical shafts for linear travel. Linear bearings have small friction, are relatively stable, do not change with the bearing speed, and can obtain smooth linear motion with high sensitivity and precision. Generally, linear bearings cannot be directly connected to workpieces and need to be connected to components through flanges.

[0003] Currently, the connection part between the linear bearing and the flange is fixed by welding. In some cases, the linear bearing is installed in a bearing sleeve with a flange on the bearing sleeve, and the bearing sleeve and the linear bearing are in interference fit. However, both of these methods are not convenient for installation and disassembly and are not convenient for debugging the linear bearing.

[0004] Therefore, it is urgent to design a double-flange linear bearing to solve the above defects, which is particularly important. Summary of the Utility Model

[0005] In view of the deficiencies of the prior art, the utility model designs a double-flange linear bearing, which aims to solve the technical problems that it is not convenient to install and disassemble between the linear bearing and the flange and not convenient to debug the linear bearing in the prior art.

[0006] To achieve the above object, the utility model provides the following technical solutions:

[0007] A double-flange linear bearing includes a linear bearing body. First and second bearing sleeves are respectively sleeved on the front and rear ends of the linear bearing body. Assembly flanges are fixedly connected to the ends of the first and second bearing sleeves away from each other. A connecting block is fixedly connected to the rear end of the first bearing sleeve. Plug-in blocks are fixedly connected to the left and right ends of the back surface of the connecting block. A connecting sleeve is fixedly connected to the position corresponding to the connecting block at the front end of the second bearing sleeve. A locking mechanism is installed inside the connecting sleeve. An activity ring is rotatably connected to the front end inside the linear bearing body. A grease nipple is threadedly connected to the outside of the activity ring. A grease injection mechanism is installed inside the activity ring and behind the grease nipple.

[0008] As a preferred solution of the utility model, multiple positioning posts are fixedly connected to the rear end of the first bearing sleeve, and the multiple positioning posts are equally spaced at the rear end of the first bearing sleeve. Multiple positioning insertion holes are provided at the positions corresponding to the multiple positioning posts at the front end of the second bearing sleeve.

[0009] As a preferred solution of the present utility model, the locking mechanism includes two groups of clamping blocks slidably connected inside the connecting sleeve. A first spring is fixedly connected between the two groups of clamping blocks. An extrusion block is movably installed inside the rear end of the connecting sleeve and between the two groups of clamping blocks. The rear end of the connecting sleeve is threadedly connected with an operating screw, and the front end of the operating screw is rotatably connected to the back surface of the extrusion block.

[0010] As a preferred solution of the present utility model, card slots adapted to the clamping blocks are respectively opened inside the two groups of plugging blocks. A guide rail is fixedly connected to the top end inside the connecting sleeve. The bottom ends of the two groups of clamping blocks are respectively connected to the guide rail through sliders.

[0011] As a preferred solution of the present utility model, a clamping ball is movably installed at the top end inside the fuel filling nozzle. The bottom end of the clamping ball is fixedly connected to the inside of the fuel filling nozzle through a second spring.

[0012] As a preferred solution of the present utility model, the fuel filling mechanism includes a moving groove opened at the top end of the moving ring. A positioning joint is slidably connected inside the moving groove. The front end of the positioning joint is fixedly connected to the inside of the moving ring through a third spring. An oil guiding hole is opened inside the positioning joint.

[0013] As a preferred solution of the present utility model, a plurality of oil guiding channels are opened at the front end inside the linear bearing body, and abutting grooves adapted to the positioning joint are respectively opened at the front ends of the plurality of oil guiding channels.

[0014] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0015] 1. In the present utility model, through the combined design of the first bearing sleeve, the second bearing sleeve, the assembly flange, the connecting block, the plugging block, the connecting sleeve and the locking mechanism, when debugging the linear bearing body, first sleeved the first bearing sleeve and the second bearing sleeve on the front and rear ends of the linear bearing body respectively, then inserted the positioning post into the positioning jack, and then closed the first bearing sleeve and the second bearing sleeve to ensure that the first bearing sleeve and the second bearing sleeve can be correctly connected. After completely closing the first bearing sleeve and the second bearing sleeve, lock the plugging block inside the connecting sleeve through the locking mechanism to fix between the first bearing sleeve and the second bearing sleeve, and then quickly install the assembly flange, so as to debug the linear bearing body.

[0016] 2. In the present utility model, through the cooperative design of the linear bearing body, the movable ring, the oil filling nozzle and the oil filling mechanism, before debugging the linear bearing body, in order to ensure the lubrication effect inside the linear bearing body, the movable ring is rotated through the oil filling nozzle, and under the action of the third spring, the positioning joint will be clamped into the abutting groove at the front end of the oil guiding channel. When the positioning joint is clamped in, an obvious sense of jerk will be felt. At this time, lubricating oil is added through the oil filling nozzle, so that the lubricating oil can be accurately added into the interior of the load-bearing balls. After the addition is completed, the movable ring is rotated to adjust the position until the load-bearing balls at all positions are filled with lubricating oil. This not only has a simple operation to ensure the effect during the debugging of the linear bearing body, but also can accurately add lubricating oil to avoid waste. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is a schematic diagram of the overall structure of the present utility model;

[0018] Figure 2 is a schematic diagram of the split structure of the first bearing sleeve and the second bearing sleeve of the present utility model;

[0019] Figure 3 is Figure 2 an enlarged view of part A in

[0020] Figure 4 is a cross-sectional view of the internal structure of the linear bearing body of the present utility model;

[0021] Figure 5 is Figure 4 an enlarged view of part B in

[0022] In the figure: 1. Linear bearing body; 2. First bearing sleeve; 201. Positioning column; 202. Positioning socket; 3. Second bearing sleeve; 4. Assembly flange; 5. Connecting block; 6. Plug-in block; 7. Connecting sleeve; 8. Locking mechanism; 801. Block; 802. First spring; 803. Extrusion block; 804. Operating screw; 805. Card slot; 806. Guide rail; 807. Slide block; 9. Movable ring; 10. Oil filling nozzle; 1001. Ball; 1002. Second spring; 11. Oil filling mechanism; 1101. Movable slot; 1102. Positioning joint; 1103. Third spring; 1104. Oil guiding hole; 1105. Oil guiding channel; 1106. Abutting groove. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0023] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the embodiments of the present utility model. 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 work shall fall within the protection scope of the present utility model.

[0024] Embodiment:

[0025] Please refer to Figures 1-5 , the present utility model provides a technical solution:

[0026] A double-flange linear bearing, comprising a linear bearing body 1. The front and rear ends of the linear bearing body 1 are respectively sleeved with a first bearing sleeve 2 and a second bearing sleeve 3. One end of the first bearing sleeve 2 and the second bearing sleeve 3 away from each other are fixedly connected with an assembly flange 4. The rear end of the first bearing sleeve 2 is fixedly connected with a connecting block 5. The left and right ends of the back surface of the connecting block 5 are fixedly connected with plug-in blocks 6. A connecting sleeve 7 is fixedly connected at a position corresponding to the front end of the second bearing sleeve 3 and the connecting block 5. A locking mechanism 8 is installed inside the connecting sleeve 7. The front end inside the linear bearing body 1 is rotatably connected with a movable ring 9. The outer side of the movable ring 9 is threadedly connected with an oil filling nozzle 10. An oil filling mechanism 11 is installed inside the movable ring 9 and at the rear end of the oil filling nozzle 10.

[0027] First, a plurality of positioning posts 201 are fixedly connected to the rear end of the first bearing sleeve 2, and the plurality of positioning posts 201 are equidistantly distributed at the rear end of the first bearing sleeve 2. A plurality of positioning insertion holes 202 are opened at positions corresponding to the plurality of positioning posts 201 at the front end of the second bearing sleeve 3. When debugging the linear bearing body 1, first sleeve the first bearing sleeve 2 and the second bearing sleeve 3 on the front and rear ends of the linear bearing body 1 respectively, then align the positioning posts 201 with the positioning insertion holes 202 and insert them, and then close the first bearing sleeve 2 and the second bearing sleeve 3 to ensure that the first bearing sleeve 2 and the second bearing sleeve 3 can be correctly connected.

[0028] Then, the locking mechanism 8 includes two sets of clamping blocks 801 slidably connected inside the connecting sleeve 7. A first spring 802 is fixedly connected between the two sets of clamping blocks 801. A pressing block 803 is movably installed inside the rear end of the connecting sleeve 7 and between the two sets of clamping blocks 801. The rear end of the connecting sleeve 7 is threadedly connected with an operating screw 804, and the front end of the operating screw 804 is rotatably connected with the back surface of the pressing block 803. A clamping groove 805 adapted to the clamping block 801 is opened inside each of the two plug-in blocks 6. A guide rail 806 is fixedly connected to the top inside the connecting sleeve 7. The bottom of each of the two sets of clamping blocks 801 is connected to the guide rail 806 through a slider 807. After completely closing the first bearing sleeve 2 and the second bearing sleeve 3, the plug-in block 6 is inserted into the inside of the connecting sleeve 7, and then the operating screw 804 is rotated inwardly of the connecting sleeve 7, so that the pressing block 803 is squeezed between the two sets of clamping blocks 801. The two sets of clamping blocks 801 stably slide on the guide rail 806 under the connection of the slider 807 until the two sets of clamping blocks 801 are clamped into the clamping groove 805 inside the plug-in block 6, thereby fixing between the first bearing sleeve 2 and the second bearing sleeve 3 by locking the plug-in block 6 inside the connecting sleeve 7, and further quickly installing the assembly flange 4 to facilitate the debugging of the linear bearing body 1.

[0029] Secondly, a clamping ball 1001 is movably installed at the top inside the fuel filler nozzle 10. The bottom end of the clamping ball 1001 is fixedly connected to the inside of the fuel filler nozzle 10 through a second spring 1002. Before debugging the linear bearing body 1, to ensure the lubrication effect inside the linear bearing body 1, lubricating oil is added through the fuel filler nozzle 10. When the fuel filler nozzle 10 is not in use, the second spring 1002 presses against the clamping ball 1001 to seal the top of the fuel filler nozzle 10 and prevent impurities from entering. When adding lubricating oil, after squeezing in the lubricating oil, it will push the clamping ball 1001, thereby guiding the lubricating oil in.

[0030] Finally, the fuel filling mechanism 11 includes a movable groove 1101 opened at the top of the movable ring 9. A positioning joint 1102 is slidably connected inside the movable groove 1101. The front end of the positioning joint 1102 is fixedly connected to the inside of the movable ring 9 through a third spring 1103. An oil guiding hole 1104 is opened inside the positioning joint 1102. Multiple oil guiding channels 1105 are opened at the front end inside the linear bearing body 1, and abutting grooves 1106 adapted to the positioning joint 1102 are opened at the front ends of the multiple oil guiding channels 1105. Since the distribution positions of the bearing balls inside the linear bearing body 1 are different, when adding lubricating oil to the bearing balls at different positions, the movable ring 9 is rotated through the fuel filler nozzle 10. Under the action of the third spring 1103, the positioning joint 1102 will be clamped into the abutting groove 1106 at the front end of the oil guiding channel 1105. When the positioning joint 1102 is clamped in, an obvious sense of jerk will be felt. At this time, lubricating oil is added through the fuel filler nozzle 10, so as to accurately add the lubricating oil into the bearing balls. After the addition is completed, the movable ring 9 is rotated to adjust the position until lubricating oil is added to all the bearing balls at all positions. This not only has a simple operation and ensures the effect during the debugging of the linear bearing body 1, but also can accurately add lubricating oil to avoid waste.

[0031] In this embodiment, the implementation scenario is specifically as follows: When debugging the linear bearing body 1, first sleeved the first bearing sleeve 2 and the second bearing sleeve 3 on the front and rear ends of the linear bearing body 1 respectively. Then align the positioning post 201 with the positioning jack 202 and insert it. Next, close the first bearing sleeve 2 and the second bearing sleeve 3 to ensure that the first bearing sleeve 2 and the second bearing sleeve 3 can be correctly connected. After completely closing the first bearing sleeve 2 and the second bearing sleeve 3, insert the plug block 6 into the inside of the connecting sleeve 7. Then rotate the operating screw 804 towards the inner side of the connecting sleeve 7, so that the extrusion block 803 is squeezed into the space between the two clamping blocks 801. The two clamping blocks 801 slide stably on the guide rail 806 under the connection of the slider 807 until the two clamping blocks 801 are clamped into the clamping groove 805 inside the plug block 6. Thus, by locking the plug block 6 inside the connecting sleeve 7, the first bearing sleeve 2 and the second bearing sleeve 3 are fixed, and then the assembly flange 4 can be quickly installed. Before debugging the linear bearing body 1, to ensure the lubrication effect inside the linear bearing body 1, rotate the movable ring 9 through the oil filling nozzle 10. Under the action of the third spring 1103, the positioning joint 1102 will be clamped into the abutting groove 1106 at the front end of the oil guiding channel 1105. When the positioning joint 1102 is clamped, an obvious sense of jerk will be felt. At this time, add lubricating oil through the oil filling nozzle 10, so as to accurately add the lubricating oil into the inside of the load-bearing balls. After the addition is completed, rotate the movable ring 9 to adjust the position until the load-bearing balls at all positions are filled with lubricating oil. The whole operation process is simple and convenient. Compared with the existing double-flange linear bearing, the present utility model can quickly install the assembly flange 4 through the design, which is convenient for debugging the linear bearing body 1. At the same time, it can accurately add the lubricating oil into the inside of the load-bearing balls, not only with simple operation to ensure the effect during the debugging of the linear bearing body 1, but also can avoid the waste of lubricating oil.

[0032] Although the embodiments of the present utility model 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 utility model. The scope of the present utility model is defined by the appended claims and their equivalents.

Claims

1. A double-flange linear bearing, comprising a linear bearing body (1), characterized in that: At the front and rear ends of the linear bearing body (1), a first bearing sleeve (2) and a second bearing sleeve (3) are respectively sleeved. At the ends of the first bearing sleeve (2) and the second bearing sleeve (3) that are far away from each other, an assembly flange (4) is fixedly connected. At the rear end of the first bearing sleeve (2), a connecting block (5) is fixedly connected. At the left and right ends of the back surface of the connecting block (5), a plug-in block (6) is fixedly connected. At the position corresponding to the connecting block (5) at the front end of the second bearing sleeve (3), a connecting sleeve (7) is fixedly connected. A locking mechanism (8) is installed inside the connecting sleeve (7). At the front end inside the linear bearing body (1), a movable ring (9) is rotatably connected. A grease nipple (10) is threadedly connected to the outside of the movable ring (9). Inside the movable ring (9) and at the rear end of the grease nipple (10), a greasing mechanism (11) is installed.

2. The double-flange linear bearing according to claim 1, wherein: At the rear end of the first bearing sleeve (2), a plurality of positioning posts (201) are fixedly connected, and the plurality of positioning posts (201) are evenly distributed at the rear end of the first bearing sleeve (2). At the position corresponding to the plurality of positioning posts (201) at the front end of the second bearing sleeve (3), a plurality of positioning sockets (202) are opened.

3. A double-flange linear bearing according to claim 1, characterized in that: The locking mechanism (8) includes two clamping blocks (801) slidably connected inside the connecting sleeve (7). A first spring (802) is fixedly connected between the two clamping blocks (801). At the rear end inside the connecting sleeve (7) and between the two clamping blocks (801), a pressing block (803) is movably installed. A operating screw (804) is threadedly connected to the rear end of the connecting sleeve (7), and the front end of the operating screw (804) is rotatably connected to the back surface of the pressing block (803).

4. A double-flange linear bearing according to claim 3, characterized in that: Inside the two plug-in blocks (6), a clamping groove (805) adapted to the clamping block (801) is opened. At the top end inside the connecting sleeve (7), a guide rail (806) is fixedly connected. The bottoms of the two clamping blocks (801) are connected to the guide rail (806) through sliders (807).

5. A double-flange linear bearing according to claim 1, characterized in that: At the top end inside the grease nipple (10), a clamping ball (1001) is movably installed. The bottom end of the clamping ball (1001) is fixedly connected to the inside of the grease nipple (10) through a second spring (1002).

6. A double-flange linear bearing according to claim 1, characterized in that: The greasing mechanism (11) includes a movable groove (1101) opened at the top end of the movable ring (9). A positioning joint (1102) is slidably connected inside the movable groove (1101). The front end of the positioning joint (1102) is fixedly connected to the inside of the movable ring (9) through a third spring (1103). An oil guide hole (1104) is opened inside the positioning joint (1102).

7. A double-flange linear bearing according to claim 6, characterized in that: At the front end inside the linear bearing body (1), a plurality of oil guide channels (1105) are opened, and at the front ends of the plurality of oil guide channels (1105), an abutting groove (1106) adapted to the positioning joint (1102) is opened.

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