Oil injection device for wear-resistant oil-retaining bearing

Abstract

The utility model discloses an oil injection device for a wear-resistant oil bearing, which belongs to the technical field of bearing processing and comprises a bottom plate, a barrel is slidably connected above the bottom plate, an oil conveying mechanism is arranged in the barrel, and a limiting shell is arranged at one end of the oil conveying mechanism; according to the bearing oiling device, the oiling assembly is arranged, when oiling operation is conducted on a bearing, the remaining amount of lubricating oil in the cylinder is reduced, under the action of the communicating pipe, the lubricating oil stored in the transparent box enters the cylinder, the lubricating oil can be conveniently added into the cylinder in time, and the oiling effect of the bearing is guaranteed; the threaded cylinder is rotationally taken down from the threaded column, then the pressing ring is away from the top cover, then the top cover is taken down from the transparent box, then lubricating oil is injected into the transparent box, the injected lubricating oil is injected into the cylinder body through the communicating pipe, it is guaranteed that the lubricating oil in the cylinder body is sufficient, and then the oil injection operation of the bearing can be guaranteed.

Description

Technical Field

[0001] This utility model belongs to the field of bearing processing technology, and specifically relates to an oil injection device for wear-resistant oil-impregnated bearings. Background Technology

[0002] Bearings are an important component in modern mechanical equipment. Their main function is to support rotating mechanical parts, reduce the coefficient of friction during their movement, and ensure their rotational accuracy.

[0003] Chinese Patent Application No. 202122758482.5 discloses an oil injection device for wear-resistant oil-impregnated bearings, including a base, a cylindrical body fixed to the top of the base, a piston ring inserted into the inner cavity of the cylindrical body, a conduit penetrating the surface of the piston ring and sealingly connecting the conduit and the piston ring, the top of the conduit connecting to a limiting shell, and a placement plate fixed to the inner cavity of the limiting shell, the surface of the placement plate having multiple identical holes in a ring shape. This invention utilizes a bearing placed within the limiting shell cavity, then applying pressure, causing the bearing to be pressurized and the limiting shell to be compressed, thereby squeezing lubricating oil into the limiting shell and then injecting it into the bearing through the holes. This achieves rapid oil injection, significantly improving efficiency, while avoiding lubricating oil overflow that would cause waste and pollution. It is practical and suitable for widespread promotion and use.

[0004] The aforementioned patent uses lubricating oil inside the cylinder to lubricate the bearing. However, during use, it is difficult for operators to judge the remaining amount of lubricating oil inside the cylinder, making it difficult to add lubricating oil to the cylinder in a timely manner, which affects the lubrication efficiency of the bearing. In addition, placing the bearing on the placement plate for lubrication is fixed inside the limiting shell, which affects the handling of the bearing. Utility Model Content

[0005] To address the problems mentioned in the background section, this invention provides an oil injection device for wear-resistant oil-impregnated bearings, which is convenient for adding oil and easy to handle and place.

[0006] To achieve the above objectives, the present invention provides the following technical solution: an oil injection device for wear-resistant oil-impregnated bearings, comprising a base plate, a cylinder slidably connected above the base plate, an oil delivery mechanism provided inside the cylinder, a limiting shell provided at one end of the oil delivery mechanism, a placement plate slidably connected inside the limiting shell, a pushing and fixing mechanism provided above the base plate on one side of the cylinder, an oil injection assembly provided on one side of the cylinder, and a lifting assembly provided between the limiting shell and the placement plate.

[0007] Preferably, the oil injection assembly includes a connecting pipe, a transparent box, a top cover, and a clamping component. A transparent box is provided on one side of the cylinder, a connecting pipe is fixedly connected between the cylinder and the transparent box, a top cover is provided above the transparent box, and a clamping component is provided between the transparent box and the top cover.

[0008] Preferably, the clamping component includes a clamping ring, a threaded cylinder, a side block, and a threaded post. Side blocks are fixedly connected to both sides of the transparent box, a threaded post is fixedly connected to the top of the side blocks, a threaded cylinder is threadedly connected to the outer periphery of the threaded post, and a clamping ring is fixedly connected to the outer side wall of the threaded cylinder.

[0009] Preferably, the oil injection assembly further includes a sealing gasket and a sealing groove. The sealing gasket is fixedly connected to the side of the top cover near the transparent box, and a sealing groove is provided inside the transparent box at the position corresponding to the sealing gasket.

[0010] Preferably, the lifting assembly includes a lifting rod, a moving block, a fixing member, and a moving groove. Moving blocks are fixedly connected to both sides of the placement plate. A moving groove is provided on the inner side wall of the limiting shell at the position corresponding to the moving block. Lifting rods are fixedly connected to both ends of the upper part of the placement plate. A fixing member is provided between the limiting shell and the lifting rod.

[0011] Preferably, the fixing component includes a fixing screw, a fixing nut, a bottom plate, and a top plate. One end of the lifting rod is fixedly connected to the top plate, the bottom plate is fixedly connected to the outer side wall of the limiting shell, the fixing screw is fixedly connected above the bottom plate, a round hole is provided on the top plate at the position corresponding to the fixing screw, and a fixing nut is threaded onto the outer side wall of the fixing screw.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] 1. This utility model is equipped with an oil injection component. When the lubricating oil level in the bearing decreases during the lubrication operation, the lubricating oil stored inside the transparent box enters the cylinder through the connecting pipe. This facilitates timely replenishment of lubricating oil into the cylinder, ensuring the lubrication effect of the bearing. When the lubricating oil level in the transparent box is low, the threaded cylinder is removed by rotating it off the threaded column. The clamping ring then moves away from the top cover. The top cover is then removed from the transparent box, and lubricating oil is injected into the transparent box. The injected lubricating oil is then injected into the cylinder through the connecting pipe, ensuring sufficient lubricating oil inside the cylinder, thereby ensuring the lubrication operation of the bearing.

[0014] 2. This utility model is equipped with a lifting assembly. After the bearing is oiled, the fixing nut is removed by rotating the fixing screw, and then the top plate is moved up away from the bottom support plate. The upward movement of the top plate drives the lifting rod to move up, which in turn drives the placement plate to move up. The upward movement of the placement plate drives the oiled bearing to move up and the moving block to move up inside the moving groove. When the moving block moves and fits against the side wall of the moving groove, the moving block is blocked and stops moving, which can prevent the placement plate from moving further. Then the oiled bearing can be removed from the placement plate, making it convenient for the operator to pick up the placed bearing. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of this utility model;

[0016] Figure 2 This is a cross-sectional view of the connection between the limiting shell and the cylinder of this utility model;

[0017] Figure 3 This utility model Figure 2 Enlarged view of point A in the middle;

[0018] Figure 4 This utility model Figure 2 Enlarged view of point B in the middle;

[0019] Figure 5 This is a cross-sectional view of the transparent box of this utility model;

[0020] Figure 6 This utility model Figure 5 Enlarged view of point C in the middle.

[0021] In the diagram: 1. Pushing and fixing mechanism; 2. Limiting shell; 3. Base plate; 4. Cylinder; 5. Placement plate; 6. Lifting assembly; 61. Lifting rod; 62. Moving block; 63. Fixing component; 631. Fixing screw; 632. Fixing nut; 633. Bottom support plate; 634. Top plate; 64. Moving groove; 7. Oil conveying mechanism; 8. Oil injection assembly; 81. Connecting pipe; 82. Transparent box; 83. Top cover; 84. Sealing gasket; 85. Pressing component; 851. Pressing ring; 852. Threaded cylinder; 853. Side block; 854. Threaded column; 86. Sealing groove. Detailed Implementation

[0022] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0023] Example 1

[0024] Please see Figure 1-6 The present invention provides the following technical solution: an oil injection device for wear-resistant oil-impregnated bearings, including a base plate 3, a cylinder 4 slidably connected above the base plate 3, an oil delivery mechanism 7 inside the cylinder 4, a limiting shell 2 at one end of the oil delivery mechanism 7, a placement plate 5 slidably connected inside the limiting shell 2, a pushing and fixing mechanism 1 located on one side of the cylinder 4 above the base plate 3, an oil injection component 8 located on one side of the cylinder 4, and a lifting component 6 located between the limiting shell 2 and the placement plate 5.

[0025] Specifically, the oil filling assembly 8 includes a connecting pipe 81, a transparent box 82, a top cover 83, and a clamping component 85. A transparent box 82 is located on one side of the cylinder 4, and a connecting pipe 81 is fixedly connected between the cylinder 4 and the transparent box 82. A top cover 83 is located above the transparent box 82, and a clamping component 85 is located between the transparent box 82 and the top cover 83.

[0026] By adopting the above technical solution, when the bearing is oiled, the amount of lubricating oil inside the cylinder 4 decreases. Under the action of the connecting pipe 81, the lubricating oil stored inside the transparent box 82 enters the cylinder 4, which facilitates the timely addition of lubricating oil to the cylinder 4 and ensures the oiling effect of the bearing. When the amount of lubricating oil inside the transparent box 82 is low, the clamping operation of the clamping member 85 on the top cover 83 is released, and the top cover 83 is removed from the transparent box 82. Then, lubricating oil is injected into the transparent box 82, and the injected lubricating oil is then injected into the cylinder 4 through the connecting pipe 81.

[0027] Specifically, the clamping component 85 includes a clamping ring 851, a threaded cylinder 852, a side block 853, and a threaded post 854. Side blocks 853 are fixedly connected to both side walls of the transparent box 82. A threaded post 854 is fixedly connected above the side blocks 853. A threaded cylinder 852 is threadedly connected to the outer periphery of the threaded post 854. A clamping ring 851 is fixedly connected to the outer wall of the threaded cylinder 852.

[0028] By adopting the above technical solution, the top cover 83 is placed above the transparent box 82, and then the threaded cylinder 852 is rotated and screwed onto the threaded post 854. The clamping ring 851 rotates and moves down accordingly. When the clamping ring 851 moves and fits against the top of the top cover 83, the rotation of the threaded cylinder 852 is stopped. The clamping ring 851 can be used to clamp and fix the top cover 83, ensuring the stability of the connection between the top cover 83 and the transparent box 82.

[0029] Specifically, the oil filling assembly 8 also includes a sealing gasket 84 and a sealing groove 86. The sealing gasket 84 is fixedly connected to the side of the top cover 83 near the transparent box 82, and the sealing groove 86 is provided inside the transparent box 82 at the position corresponding to the sealing gasket 84.

[0030] By adopting the above technical solution, after the top cover 83 is pressed and fixed to the top of the transparent box 82, the sealing gasket 84 is then snapped into the inside of the sealing groove 86. With the cooperation of the sealing gasket 84 and the sealing groove 86, the sealing performance of the connection between the top cover 83 and the transparent box 82 can be guaranteed.

[0031] In this embodiment, the bearing to be processed is placed on the placement plate 5, and then the bearing is fixed by the pushing and fixing mechanism 1. The limiting shell 2 is pushed down. At this time, under the action of the oil supply mechanism 7, the lubricating oil inside the cylinder 4 enters the limiting shell 2 and is discharged to the bottom of the bearing through the holes on the placement plate 5. Then, it enters the bearing through the gaps in the bearing to complete the oiling operation. When the bearing is oiled, the remaining lubricating oil inside the cylinder 4 decreases. Under the action of the connecting pipe 81, the lubricating oil inside the transparent box 82 flows out. The stored lubricating oil enters the inside of the cylinder 4, making it easy to add lubricating oil to the inside of the cylinder 4 in a timely manner, ensuring the lubrication effect of the bearing. When the lubricating oil in the transparent box 82 is low, the threaded cylinder 852 is removed by rotating it off the threaded column 854, and the clamping ring 851 moves away from the top cover 83. Then the top cover 83 is removed from the transparent box 82, and then lubricating oil is injected into the transparent box 82. The injected lubricating oil is then injected into the inside of the cylinder 4 through the connecting pipe 81, ensuring that the lubricating oil inside the cylinder 4 is sufficient, thereby ensuring the lubrication operation of the bearing.

[0032] Example 2

[0033] The difference between this embodiment and Embodiment 1 is that: the lifting assembly 6 includes a lifting rod 61, a moving block 62, a fixing member 63, and a moving groove 64. Moving blocks 62 are fixedly connected to both side walls of the placement plate 5. A moving groove 64 is provided on the inner side wall of the limiting shell 2 at the position corresponding to the moving block 62. Lifting rods 61 are fixedly connected to both ends of the upper part of the placement plate 5. A fixing member 63 is provided between the limiting shell 2 and the lifting rods 61.

[0034] Specifically, the fixing component 63 includes a fixing screw 631, a fixing nut 632, a bottom support plate 633, and a top plate 634. One end of the lifting rod 61 is fixedly connected to the top plate 634. The bottom support plate 633 is fixedly connected to the outer wall of the limiting shell 2. The fixing screw 631 is fixedly connected to the top of the bottom support plate 633. A round hole is opened on the top plate 634 at the position corresponding to the fixing screw 631. The fixing nut 632 is threadedly connected to the outer wall of the fixing screw 631.

[0035] By adopting the above technical solution, after the placement plate 5 is moved and placed inside the limiting shell 2, the top plate 634 moves accordingly to fit against the bottom support plate 633. Then, the fixing nut 632 is rotated and screwed onto the fixing screw 631, so that it fits against the side wall of the top plate 634. With the cooperation of the fixing screw 631 and the fixing nut 632, the top plate 634 and the bottom support plate 633 can be limited and fixed, thereby ensuring the stability of the placement plate 5.

[0036] In this embodiment, after the bearing is oiled, the fixing nut 632 is removed from the fixing screw 631 by rotating it. Then, the top plate 634 is moved upward, away from the bottom support plate 633. The upward movement of the top plate 634 causes the lifting rod 61 to move upward, which in turn causes the placement plate 5 to move upward. The upward movement of the placement plate 5 causes the oiled bearing to move upward, and the moving block 62 to move upward inside the moving groove 64. When the moving block 62 moves and fits against the side wall of the moving groove 64, the moving block 62 is blocked and stops moving, which can prevent the placement plate 5 from moving further. Then, the oiled bearing is removed from the placement plate 5, making it convenient for the operator to pick up the placed bearing.

[0037] The structure and principle of the pushing and fixing mechanism 1, which consists of a support plate, a top plate, a first electric push rod, a pressure plate, and a guide rod, have been disclosed in Chinese Patent Application No. 202122758482.5, which discloses an oil injection device for wear-resistant oil-impregnated bearings. Its working principle is as follows: a support plate is fixedly connected above the bottom plate 3 and to one side of the cylinder 4; a top plate is fixedly fixed to the top of the support plate; a first electric push rod is fixedly fixed to the bottom of the top plate; a pressure plate is fixedly connected to the tail end of the first electric push rod; and guide rods are fixed to both sides of the top of the pressure plate. Furthermore, the guide rod moves through the top plate, which can limit the lifting trajectory of the pressure plate and improve stability. In use, the bearing is placed on the surface of the placement plate 5, and then the first electric push rod is activated to drive the pressure plate down to press the bearing and continuously apply pressure. At this time, the bearing will exert a certain thrust on the limiting shell 2, so that the lubricating oil inside the cylinder 4 enters the inner cavity of the limiting shell 2 through the oil delivery mechanism 7, and is led out to the bottom of the bearing through the hole on the placement plate 5, and then enters the bearing through the gap of the bearing, thus completing the oil injection in one go.

[0038] The structure and principle of the oil delivery mechanism 7, which consists of a piston ring and a conduit, in this utility model have been disclosed in a wear-resistant oil-impregnated bearing oil injection device disclosed in Chinese patent application number 202122758482.5. Its working principle is as follows: a piston ring is inserted into the inner cavity of the cylinder 4, and a conduit passes through the surface of the piston ring and is sealed and fixedly connected to the piston ring. The top of the conduit is connected to the limiting shell 2. In use, the limiting shell 2 is pushed down by the pushing and fixing mechanism 1, which in turn drives the piston ring to descend. At this time, the lubricating oil is pressurized and enters the conduit, thereby entering the inner cavity of the limiting shell 2.

[0039] The working principle and usage process of this utility model are as follows: The bearing to be processed is placed on the placement plate 5, and then the bearing is fixed by the pushing and fixing mechanism 1. The limiting shell 2 is pushed down. At this time, under the action of the oil supply mechanism 7, the lubricating oil inside the cylinder 4 enters the limiting shell 2 and is led out to the bottom of the bearing through the hole on the placement plate 5. Then, it enters the bearing through the gap, completing the oiling operation. When the bearing is oiled, the remaining lubricating oil inside the cylinder 4 decreases. Under the action of the connecting pipe 81, the lubricating oil stored in the transparent box 82 enters the cylinder 4, which facilitates the timely addition of lubricating oil to the cylinder 4 and ensures the oiling effect of the bearing. When the remaining lubricating oil inside the transparent box 82 is low, the threaded cylinder 852 is rotated off from the threaded column 854, and the clamping ring 851 moves away from the top cover 8. 3. Next, remove the top cover 83 from the transparent box 82, and then inject lubricating oil into the transparent box 82. The injected lubricating oil is then injected into the cylinder 4 through the connecting pipe 81 to ensure sufficient lubricating oil inside the cylinder 4, thereby ensuring the lubrication operation of the bearing. After the bearing is lubricated, rotate and remove the fixing nut 632 from the fixing screw 631, and then move the top plate 634 up away from the bottom support plate 633. The upward movement of the top plate 634 drives the lifting rod 61 to move up, which in turn drives the placement plate 5 to move up. The upward movement of the placement plate 5 drives the lubricated bearing to move up and the moving block 62 to move up inside the moving groove 64. When the moving block 62 moves and fits against the side wall of the moving groove 64, the moving block 62 is blocked and stops moving, thereby preventing the placement plate 5 from moving further. Then, remove the lubricated bearing from the placement plate 5 for easy access by the operator.

[0040] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An oil injection device for wear-resistant oil-impregnated bearings, comprising a base plate (3), a cylinder (4) slidably connected above the base plate (3), an oil delivery mechanism (7) provided inside the cylinder (4), a limiting shell (2) provided at one end of the oil delivery mechanism (7), a placement plate (5) slidably connected inside the limiting shell (2), and a pushing and fixing mechanism (1) provided on one side of the cylinder (4) above the base plate (3), characterized in that: An oil injection assembly (8) is provided on one side of the cylinder (4), and a lifting assembly (6) is provided between the limiting shell (2) and the placement plate (5).

2. The oil injection device for wear-resistant oil-impregnated bearings according to claim 1, characterized in that: The oil injection assembly (8) includes a connecting pipe (81), a transparent box (82), a top cover (83), and a clamping component (85). A transparent box (82) is provided on one side of the cylinder (4), and a connecting pipe (81) is fixedly connected between the cylinder (4) and the transparent box (82). A top cover (83) is provided above the transparent box (82), and a clamping component (85) is provided between the transparent box (82) and the top cover (83).

3. The oil injection device for wear-resistant oil-impregnated bearings according to claim 2, characterized in that: The clamping component (85) includes a clamping ring (851), a threaded cylinder (852), a side block (853), and a threaded post (854). Side blocks (853) are fixedly connected to both sides of the transparent box (82). A threaded post (854) is fixedly connected to the top of the side block (853). A threaded cylinder (852) is threadedly connected to the outer periphery of the threaded post (854). A clamping ring (851) is fixedly connected to the outer side wall of the threaded cylinder (852).

4. The oil injection device for wear-resistant oil-impregnated bearings according to claim 2, characterized in that: The oil injection assembly (8) also includes a sealing gasket (84) and a sealing groove (86). The sealing gasket (84) is fixedly connected to the side of the top cover (83) near the transparent box (82). The sealing groove (86) is provided inside the transparent box (82) at the position corresponding to the sealing gasket (84).

5. The oil injection device for wear-resistant oil-impregnated bearings according to claim 1, characterized in that: The lifting assembly (6) includes a lifting rod (61), a moving block (62), a fixing member (63), and a moving groove (64). The moving blocks (62) are fixedly connected to both sides of the placement plate (5). The moving groove (64) is opened on the inner side wall of the limiting shell (2) at the position corresponding to the moving blocks (62). The lifting rods (61) are fixedly connected to both ends of the upper part of the placement plate (5). The fixing member (63) is provided between the limiting shell (2) and the lifting rods (61).

6. The oil injection device for wear-resistant oil-impregnated bearings according to claim 5, characterized in that: The fixing component (63) includes a fixing screw (631), a fixing nut (632), a bottom plate (633), and a top plate (634). One end of the lifting rod (61) is fixedly connected to the top plate (634). The bottom plate (633) is fixedly connected to the outer wall of the limiting shell (2). The fixing screw (631) is fixedly connected above the bottom plate (633). A round hole is opened on the top plate (634) at the position corresponding to the fixing screw (631). The fixing nut (632) is threadedly connected to the outer wall of the fixing screw (631).

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