Automatic lubricating device of screw air compressor

Abstract

The utility model relates to the technical field of screw air compressors, in particular to an automatic lubricating device of a screw air compressor, which comprises an oil tank and a mounting rack, an outer bracket is welded outside the mounting rack, an inner bracket is slidably connected to the inner side of the outer bracket, and a hoop for fixing the oil tank is fixed on the outer side of the inner bracket through screws. A fixing pipe is fixed to the bottom of the oil tank through screws, a branch pipe is fixed to the bottom of the fixing pipe through screws, and a ball block for lubricating the screw air compressor is fixed to the bottom of the branch pipe through screws. When adjustment of the ball in the ball shell is finished, a transmission rod on an outer bracket is rotated, then the transmission rod drives a threaded lead screw to rotate, a driving block axially moves outside the threaded lead screw, then the driving block drives a driving rod on one side to move, then the driving rod drives an arc plate to move, and a rubber pad in the arc plate makes contact with the surface of the ball. And therefore, the ball can be conveniently fixed, and deviation of the ball is avoided.

Description

Technical Field

[0001] This utility model relates to the field of screw air compressor technology, and specifically to an automatic lubrication device for screw air compressors. Background Technology

[0002] A screw air compressor is a type of air compressor that compresses air by rotating a screw. It is mainly used to compress atmospheric air into high-pressure gas to supply various equipment and applications that require compressed air, such as pneumatic tools, pneumatic valves, and pneumatic control systems.

[0003] Patent No. 202420367207.1 discloses an automatic lubrication device for a screw air compressor. The device rotates the position between the limiting ball and the limiting shell as needed to keep the oil tank perpendicular to the horizontal plane, thereby allowing the oil to be lubricated under the action of gravity.

[0004] However, in the existing automatic lubrication devices for screw air compressors, the position between the rotating limit ball and the limit shell is used to ensure smooth delivery of lubricating oil. However, screw air compressors vibrate during operation. Since the lubrication device is fixed to the screw air compressor, the vibration of the screw air compressor is transmitted to the lubrication device. The limit ball and the limit shell will vibrate with it, causing the limit ball and the limit shell to shift, preventing the lubricating oil from being delivered smoothly and affecting the lubrication efficiency of the screw air compressor. Therefore, an automatic lubrication device for screw air compressors is proposed. Utility Model Content

[0005] To address the problems in the background art, this utility model provides an automatic lubrication device for a screw air compressor.

[0006] The technical solution adopted by this utility model to solve its technical problem is an automatic lubrication device for a screw air compressor, including an oil tank and a mounting bracket. An outer bracket is welded to the outside of the mounting bracket, and an inner bracket is slidably connected to the inside of the outer bracket. A clamp for fixing the oil tank is screwed to the outside of the inner bracket. A fixing pipe is screwed to the bottom of the oil tank, and a branch pipe is screwed to the bottom of the fixing pipe. A ball block for lubricating the screw air compressor is screwed to the bottom of the branch pipe. A cylinder is screwed to the inside of the mounting bracket, and a cotton swab is screwed to the bottom of the cylinder. A ball shell connected to the ball block is screwed to the top of the cylinder. A through hole for discharging lubricating oil is opened on the surface of the ball block. A valve for controlling the lubricating oil is screwed to the outside of the fixing pipe. A drive rod is slidably connected to the surface of the outer bracket, and an arc plate for fixing the ball block is welded to the outside of the drive rod. An adjustment component for moving the drive rod is provided inside the outer bracket. A fixing component for fixing the inner bracket is provided inside the inner bracket. A rubber pad for contacting the ball block is adhered to the inside of the arc plate.

[0007] By adopting the above technical solution, when adding lubricating oil to the screw air compressor, the mounting bracket is fixed on the screw air compressor so that the cotton swab at the bottom of the cylinder contacts the position of the screw air compressor where lubricating oil needs to be added. Then, the valve on the fixed pipe is opened so that the oil in the oil tank flows into the ball below the branch pipe through the fixed pipe. Then, multiple through holes on the ball transport the lubricating oil through the ball shell to the cylinder. The cylinder then transports the lubricating oil to the cotton swab, thus facilitating the addition of lubricating oil to the screw air compressor.

[0008] When the branch pipe delivers lubricating oil into the ball, the ball is rotated. Since the branch pipe is a corrugated pipe, when the ball rotates, the through hole of the ball is oriented towards the inside of the ball shell, so that the lubricating oil can be delivered smoothly. After the ball is adjusted, the adjustment component in the outer bracket drives the arc plate to move, so that the rubber pad in the arc plate contacts the surface of the ball, thereby making it easier to fix the ball and prevent the ball from shifting due to the vibration of the screw air compressor.

[0009] Specifically, the adjustment assembly includes a transmission rod, a threaded screw, and a drive block. The threaded screw is rotatably connected inside the outer bracket, and the drive block is threadedly connected to the outside of the threaded screw. The drive block is welded to the end of the drive rod.

[0010] By adopting the above technical solution, when the position of the arc plate needs to be adjusted, the threaded screw in the outer bracket drives the drive block to rotate, and the slider welded to the outside of the drive block slides in the symmetrically opened grooves in the outer bracket, so that the drive block moves axially outside the threaded screw. Then the drive block drives the drive rod on one side to move, and then the drive rod drives the arc plate to move, thereby facilitating the adjustment of the position of the arc plate.

[0011] Specifically, the outer bracket has a transmission rod rotatably connected to its outer top end, which drives the threaded screw to rotate.

[0012] By adopting the above technical solution, when the threaded screw needs to be rotated, it is moved to the transmission rod on the outer bracket, and then the transmission rod drives the threaded screw to rotate.

[0013] Specifically, the fixing component includes a spring, a limiting block, and a limiting hole. The inner bracket has a spring welded inside, and the spring end has a limiting block welded to it.

[0014] By adopting the above technical solution, when the height of the oil tank needs to be adjusted, the limiting block on the outer bracket is pressed, then the limiting block presses the spring on one side, and then the limiting block enters the inner bracket. Then the inner bracket is pulled to slide inside the outer bracket, and then the inner bracket drives the oil tank in the clamp to move, thereby facilitating the adjustment of the height of the oil tank.

[0015] Specifically, the outer bracket surface is provided with a limiting hole for fixing the limiting block.

[0016] By adopting the above technical solution, after the inner bracket is adjusted, the spring drives the limiting block into the limiting hole opened on the outer bracket, and the limiting hole fixes the limiting block.

[0017] The beneficial effects of this utility model are:

[0018] (1) The automatic lubrication device for a screw air compressor described in this utility model, when the ball is adjusted in the ball shell, rotates the transmission rod on the outer bracket, and then the transmission rod drives the threaded screw to rotate, so that the drive block moves axially outside the threaded screw. Then the drive block drives the drive rod on one side to move, and then the drive rod drives the arc plate to move, so that the rubber pad in the arc plate contacts the surface of the ball, thereby making it easier to fix the ball and prevent the ball from shifting.

[0019] (2) The automatic lubrication device for a screw air compressor described in this utility model, when the height of the oil tank needs to be adjusted, presses the limiting block in the limiting hole on the surface of the outer bracket, then the limiting block presses the spring on one side, then the limiting block enters the inner bracket, then pulls the inner bracket to slide in the outer bracket, then the inner bracket drives the oil tank in the clamp to move, and then the spring drives the limiting block to enter another set of limiting holes opened on the outer bracket to fix the inner bracket, thereby facilitating the adjustment of the height of the oil tank. Attached Figure Description

[0020] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0021] Figure 1 This is a schematic diagram of the overall structure of an automatic lubrication device for a screw air compressor according to the present invention.

[0022] Figure 2 This is a schematic diagram of the internal structure of the outer bracket of an automatic lubrication device for a screw air compressor according to the present invention;

[0023] Figure 3 This is a schematic diagram of the inner side structure of the outer bracket of an automatic lubrication device for a screw air compressor according to the present invention;

[0024] Figure 4 This is a schematic diagram of the surface structure of the ball block in an automatic lubrication device for a screw air compressor according to the present invention.

[0025] In the diagram: 1. Oil tank; 2. Inner bracket; 3. Clamp; 4. Fixing pipe; 5. Outer bracket; 6. Drive rod; 7. Limiting block; 8. Limiting hole; 9. Ball block; 10. Ball shell; 11. Cotton swab; 12. Valve; 13. Branch pipe; 14. Arc plate; 15. Mounting bracket; 16. Threaded screw; 17. Drive block; 18. Spring; 19. Transmission rod; 20. Rubber pad; 21. Cylinder; 22. Fixing assembly; 23. Through hole; 24. Adjusting assembly. Detailed Implementation

[0026] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0027] To add lubricating oil to a screw air compressor, as one embodiment of this utility model, such as... Figures 1 to 4 As shown, the automatic lubrication device for a screw air compressor according to this utility model includes an oil tank 1 and a mounting bracket 15. An outer bracket 5 is welded to the outside of the mounting bracket 15, and an inner bracket 2 is slidably connected to the inner side of the outer bracket 5. A clamp 3 for fixing the oil tank 1 is screwed to the outside of the inner bracket 2. A fixing pipe 4 is screwed to the bottom of the oil tank 1, and a branch pipe 13 is screwed to the bottom of the fixing pipe 4. A ball block 9 for lubricating the screw air compressor is screwed to the bottom of the branch pipe 13. A cylinder 21 is screwed to the inside of the mounting bracket 15, and cotton is screwed to the bottom of the cylinder 21. Rod 11, the top of the cylinder 21 is screwed to a spherical shell 10 connected to the ball block 9, the surface of the ball block 9 is provided with a through hole 23 for discharging lubricating oil, the fixed tube 4 is screwed to a valve 12 for controlling the lubricating oil, the surface of the outer bracket 5 is slidably connected to a drive rod 6, and an arc plate 14 for fixing the ball block 9 is welded to the outside of the drive rod 6, the outer bracket 5 is provided with an adjustment component 24 for moving the drive rod 6, the inner bracket 2 is provided with a fixing component 22 for fixing the inner bracket 2, and a rubber pad 20 that contacts the ball block 9 is glued to the inner side of the arc plate 14.

[0028] When adding lubricating oil to the screw air compressor, fix the mounting bracket 15 on the screw air compressor so that the cotton swab 11 at the bottom of the cylinder 21 contacts the part of the screw air compressor where lubricating oil needs to be added. Then open the valve 12 on the fixed pipe 4 so that the oil in the oil tank 1 flows into the ball below the branch pipe 13 through the fixed pipe 4. Then, the multiple through holes 23 on the ball deliver the lubricating oil through the ball shell 10 to the cylinder 21. Then, the cylinder 21 delivers the lubricating oil to the cotton swab 11, which makes it easy to add lubricating oil to the screw air compressor.

[0029] When the branch pipe 13 delivers lubricating oil into the ball, the ball rotates. Since the branch pipe 13 is a corrugated pipe, when the ball rotates, the through hole 23 of the ball faces the inside of the ball shell 10, so that the lubricating oil can be delivered smoothly. After the ball is adjusted, the adjustment component 24 in the outer bracket 5 drives the arc plate 14 to move, so that the rubber pad 20 in the arc plate 14 contacts the surface of the ball, thereby making it easier to fix the ball and avoid the ball from shifting due to the vibration of the screw air compressor.

[0030] To adjust the position of the arc plate 14, for example, such as Figure 1 , Figure 2As shown, the present invention also includes the following: the adjustment component 24 includes a transmission rod 19, a threaded screw 16 and a drive block 17. The threaded screw 16 is rotatably connected inside the outer bracket 5, and the drive block 17 is threadedly connected to the outside of the threaded screw 16. The drive block 17 is welded to the end of the drive rod 6.

[0031] When the position of the arc plate 14 needs to be adjusted, the threaded screw 16 inside the outer bracket 5 drives the drive block 17 to rotate. The slider welded to the outside of the drive block 17 slides in the symmetrically opened grooves inside the outer bracket 5, so that the drive block 17 moves axially outside the threaded screw 16. Then the drive block 17 drives the drive rod 6 on one side to move, and then the drive rod 6 drives the arc plate 14 to move, thus facilitating the adjustment of the position of the arc plate 14.

[0032] To drive the lead screw 16 to rotate, for example, such as Figure 2 As shown, the present invention also includes a transmission rod 19 that drives the threaded screw 16 to rotate, which is rotatably connected to the top of the outer bracket 5.

[0033] When in use, to drive the threaded screw 16 to rotate, the transmission rod 19 on the outer bracket 5 is moved, and then the transmission rod 19 drives the threaded screw 16 to rotate.

[0034] To adjust the height of oil tank 1, for example, as follows: Figure 2 As shown, the present invention also includes the fixing component 22, which includes a spring 18, a limiting block 7 and a limiting hole 8. The inner bracket 2 has the spring 18 welded inside, and the limiting block 7 is welded to the end of the spring 18.

[0035] When adjusting the height of the oil tank 1, press the limiting block 7 on the outer bracket 5. Then the limiting block 7 presses the spring 18 on one side, and then the limiting block 7 enters the inner bracket 2. Then the inner bracket 2 is pulled to slide inside the outer bracket 5. Then the inner bracket 2 drives the oil tank 1 in the clamp 3 to move, thereby facilitating the adjustment of the height of the oil tank 1.

[0036] To fix the limiting block 7, for example, as follows: Figure 2 As shown, the present invention also includes a limiting hole 8 on the surface of the outer bracket 5 for fixing the limiting block 7.

[0037] When in use, after the inner bracket 2 is adjusted, the spring 18 drives the limiting block 7 into the limiting hole 8 opened on the outer bracket 5, and the limiting hole 8 fixes the limiting block 7.

[0038] In use, the mounting bracket 15 is first fixed to the screw air compressor, so that the cotton swab 11 at the bottom of the cylinder 21 contacts the position of the screw air compressor where lubricating oil needs to be added. Then, the valve 12 on the fixed pipe 4 is opened, so that the oil in the oil tank 1 flows into the ball below the branch pipe 13 through the fixed pipe 4. The branch pipe 13 is a bellows. The ball is rotated so that the through hole 23 on the ball faces the inside of the ball shell 10, so that the lubricating oil can be delivered smoothly. After the ball is adjusted, the transmission rod 19 on the outer bracket 5 is rotated. Then, the transmission rod 19 drives the threaded screw 16 to rotate. Both the transmission rod 19 and the threaded screw 16 are installed in the bearing seat of the outer bracket 5 through deep groove ball bearings. The bearing seat is welded to the inner wall of the outer bracket 5. The slider welded to the outside of the drive block 17 slides in the symmetrically opened grooves inside the outer bracket 5, so that the drive block 17 is on the outer shaft of the threaded screw 16. The cylinder 21 moves the lubricating oil to the cotton swab 11, making it easy to add lubricating oil to the screw air compressor. When the height of the oil tank 1 needs to be adjusted, the limiting block 7 in the limiting hole 8 on the surface of the outer bracket 5 is pressed, and then the limiting block 7 presses the spring 18 on one side. Then the limiting block 7 enters the inner bracket 2, and then the inner bracket 2 is pulled to slide in the outer bracket 5. Then the inner bracket 2 moves the oil tank 1 in the clamp 3. Then the spring 18 drives the limiting block 7 into another set of limiting holes 8 opened on the outer bracket 5 to fix the inner bracket 2, thus making it easy to adjust the height of the oil tank 1.

[0039] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The descriptions of the above embodiments and specifications are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of protection claimed by this utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. An automatic lubrication device for a screw air compressor, characterized in that, The system includes an oil tank (1) and a mounting bracket (15). An outer bracket (5) is welded to the outside of the mounting bracket (15). An inner bracket (2) is slidably connected to the inner side of the outer bracket (5). A clamp (3) for fixing the oil tank (1) is screwed onto the outer side of the inner bracket (2). A fixing pipe (4) is screwed to the bottom of the oil tank (1). A branch pipe (13) is screwed to the bottom of the fixing pipe (4). A ball block (9) for lubricating the screw air compressor is screwed to the bottom of the branch pipe (13). A cylinder (21) is screwed to the inside of the mounting bracket (15). A cotton swab (11) is screwed to the bottom of the cylinder (21). A screw is screwed to the top of the cylinder (21). A spherical shell (10) is fixed to the ball block (9) and connected to it. The surface of the ball block (9) has a through hole (23) for discharging lubricating oil. A valve (12) for controlling lubricating oil is fixed to the outside of the fixing tube (4) by screws. A drive rod (6) is slidably connected to the surface of the outer bracket (5). An arc plate (14) for fixing the ball block (9) is welded to the outside of the drive rod (6). An adjustment component (24) for moving the drive rod (6) is provided inside the outer bracket (5). A fixing component (22) for fixing the inner bracket (2) is provided inside the inner bracket (2). A rubber pad (20) for contacting the ball block (9) is bonded to the inside of the arc plate (14).

2. The automatic lubrication device for a screw air compressor according to claim 1, characterized in that, The adjustment assembly (24) includes a transmission rod (19), a threaded screw (16) and a drive block (17). The threaded screw (16) is rotatably connected inside the outer bracket (5), and the drive block (17) is threadedly connected to the outside of the threaded screw (16). The drive block (17) is welded to the end of the drive rod (6).

3. The automatic lubrication device for a screw air compressor according to claim 2, characterized in that, The outer bracket (5) is rotatably connected to a transmission rod (19) that drives the threaded screw (16) to rotate.

4. The automatic lubrication device for a screw air compressor according to claim 1, characterized in that, The fixing component (22) includes a spring (18), a limiting block (7) and a limiting hole (8). The inner bracket (2) has a spring (18) welded inside, and a limiting block (7) is welded to the end of the spring (18).

5. An automatic lubrication device for a screw air compressor according to claim 4, characterized in that, The outer bracket (5) has a limiting hole (8) on its surface to fix the limiting block (7).

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