Lubricating mechanism of screw compressor

Abstract

The utility model discloses a lubricating mechanism of a screw compressor, which comprises a screw compressor body, the outer wall of the top of the screw compressor body is fixedly connected with two oil tanks, the interiors of the oil tanks are movably connected with push plates, the tops of the push plates are fixedly connected with springs, and the springs are fixed with the inner walls of the tops of the oil tanks. An oil inlet is formed in the top of the screw compressor body, a connecting block is fixedly connected between the two oil tanks, a sliding groove is formed in the connecting block, a connecting rod is movably connected to the top of the connecting block, a check block is fixedly connected to the bottom end of the connecting rod, and the check block blocks the oil inlet. According to the screw compressor, a worker can conveniently and rapidly add lubricating oil into the screw compressor body, meanwhile, the baffle can stably block the oil inlet through the fixing assembly, and a large amount of lubricating oil can be prevented from entering the top position of the connecting block through the first sealing ring.

Description

Technical Field

[0001] The utility model relates to the technical field of compressors, in particular to a lubrication mechanism of a screw compressor. Background Art

[0002] Screw compressors are widely used in refrigeration, air conditioning, chemical processes and other fields due to their simple structure, few wearing parts, low exhaust temperature and good gas flow regulation.

[0003] After long-term use, the internal twin screws of the screw compressor will wear out. In order to reduce the wear, they need to be lubricated. The existing lubrication method is to open the refueling hole first, and then use tools to squeeze the lubricating oil into the interior. This method requires tools, which makes refueling inconvenient. Utility Model Content

[0004] The purpose of the utility model is to solve the shortcomings in the prior art and to propose a lubricating mechanism for a screw compressor.

[0005] In order to achieve the above purpose, the present invention adopts the following technical solutions:

[0006] A lubrication mechanism for a screw compressor comprises a screw compressor body, wherein the top outer wall of the screw compressor body is fixedly connected to two oil tanks, a push plate is movably connected inside the oil tank, the top of the push plate is fixedly connected to a spring, and the spring is fixed to the top inner wall of the oil tank, an oil inlet is provided at the top of the screw compressor body, a connecting block is fixedly connected between the two oil tanks, a sliding groove is provided inside the connecting block, a connecting rod is movably connected to the top of the connecting block, a stopper is fixedly connected to the bottom end of the connecting rod, and the stopper blocks the oil inlet, a second sealing ring is fixedly connected to the bottom of the stopper, a notch is provided on the side of the oil tank, and the second sealing ring blocks the notch, a knob is fixedly connected to the top of the connecting rod, and a fixing component for limiting the rotation of the knob is provided on one side outer wall of the oil tank.

[0007] As a further solution of the present invention, the fixing assembly includes a baffle, which is fixed to the inner wall of one side of the oil tank by bolts. The baffle is in contact with the knob. A threaded rod is inserted into the inside of the baffle. Threaded holes are provided at both ends of the knob, and the threaded rod is threadedly connected to the corresponding threaded holes.

[0008] As a further solution of the present invention, a fuel filling port is provided on one side of the two fuel tanks, and an oil inlet pipe is connected and fixed in the fuel filling port.

[0009] As a further solution of the present invention, a reverse flow valve is installed inside the oil inlet pipe.

[0010] As a further solution of the present invention, a slope is provided on the bottom end of the stopper.

[0011] As a further solution of the present invention, a first sealing ring is fixedly connected to the outer side of the top of the stop block, and the first sealing ring is in contact with the inner wall of the connecting block.

[0012] As a further solution of the present invention, an air port is provided on the top of the oil tank.

[0013] As a further solution of the present invention, the connecting block covers the oil inlet.

[0014] The beneficial effects of the utility model are:

[0015] 1. The coordinated use of the stopper and the push plate allows workers to quickly add lubricating oil to the interior of the screw compressor. The operation is simple and does not require tools, which improves the convenience of the device.

[0016] 2. The threaded rod and the baffle are used in conjunction to fix the position of the knob, thereby keeping the position of the baffle blocking the oil inlet stable, thereby improving the use effect of the device.

[0017] 3. The first sealing ring in the present invention can make the top of the stopper block contact the inner wall of the connecting block more closely, preventing a large amount of lubricating oil from entering the top position of the connecting block and affecting the use of the device, thereby improving the sealing effect of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the three-dimensional structure of a lubrication mechanism of a screw compressor proposed in the present invention;

[0019] Figure 2 This is a schematic cross-sectional view of the oil tank of a lubrication mechanism of a screw compressor proposed in the present invention;

[0020] Figure 3 This is a schematic diagram of the enlarged structure of a stopper of a lubrication mechanism of a screw compressor proposed by the utility model.

[0021] In the figure: 1. Oil tank; 2. Reverse flow valve; 3. Oil inlet pipe; 4. Screw compressor body; 5. Connecting block; 6. Baffle; 7. Knob; 8. Threaded rod; 9. Spring; 10. Push plate; 11. Notch; 12. First sealing ring; 13. Connecting rod; 14. Oil inlet; 15. Baffle; 16. Slide; 17. Second sealing ring; 18. Inclined surface; 19. Air port. DETAILED DESCRIPTION

[0022] It should be noted that the terms "first", "second", etc. in the description and claims of this application and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence, so that the embodiments of this application described here, based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making creative work should fall within the scope of protection of this application.

[0023] Reference Figure 1-Figure 3 , a lubrication mechanism of a screw compressor, including a screw compressor body 4, the top outer wall of the screw compressor body 4 is fixed with two oil tanks 1 by bolts, the inside of the oil tank 1 is slidably connected with a push plate 10, the top of the push plate 10 is welded with a spring 9, the lubricating oil in the oil tank 1 gradually increases, at this time the push plate 10 moves upward along the oil tank 1, the spring 9 gradually contracts, and the spring 9 is fixed to the top inner wall of the oil tank 1, the top of the screw compressor body 4 is provided with an oil inlet 14, the oil inlet 14 is located above the twin screws inside the screw compressor body 4, a connecting block 5 is fixed between the two oil tanks 1 by bolts, a slide groove 16 is provided inside the connecting block 5, the top of the connecting block 5 is rotatably connected with a connecting rod 13, the bottom end of the connecting rod 13 is welded with The stopper 15 is provided, and the stopper 15 blocks the oil inlet 14. A second sealing ring 17 is bonded to the bottom of the stopper 15. A notch 11 is provided on the side of the oil tank 1, and the second sealing ring 17 blocks the notch 11. A knob 7 is welded to the top of the connecting rod 13. A fixing component for limiting the rotation of the knob 7 is provided on the outer wall of one side of the oil tank 1. The fixing component is separated from the knob 7, and the knob 7 is pulled upward to drive the connecting rod 13 to move the stopper 15 upward and move the stopper 15 out of the oil inlet 14. At the same time, the second sealing ring 17 moves out of the notch 11. At this time, the spring 9 rebounds and extends, so that the push plate 10 pushes the lubricating oil in the oil tank 1 through the notch 11 and the oil inlet 14 into the screw compressor body 4 in turn, so that the twin screws inside the screw compressor body 4 are lubricated.

[0024] In the present invention, it should be noted that the fixing assembly includes a baffle 6, which is fixed to the inner wall of one side of the oil tank 1 by bolts. The baffle 6 is in contact with the knob 7. A threaded rod 8 is inserted into the interior of the baffle 6. Threaded holes are provided at both ends of the knob 7, and the threaded rod 8 is threadedly connected to its corresponding threaded hole. The threaded rod 8 is used in conjunction with the baffle 6 to fix the position of the knob 7, thereby keeping the position of the baffle 6 blocking the oil inlet 14 stable. A refueling port is provided on one side of the two oil tanks 1. The refueling port is connected and fixed with an oil inlet pipe 3. External lubricating oil enters the interior of the oil tank 1 through the oil inlet pipe 3. A reverse valve 2 is installed inside the oil inlet pipe 3 to prevent the lubricating oil in the oil inlet pipe 3 from flowing back. A slope 18 is provided at the bottom end of the block 15. The slope 18 can enable the block 15 to stably block the oil inlet 14. A first sealing ring 12 is bonded to the outside of the top of the block 15, and the first sealing ring 12 is in contact with the inner wall of the connecting block 5. The first sealing ring 12 can make the top of the block 15 contact the inner wall of the connecting block 5 more closely, preventing a large amount of lubricating oil from entering the top position of the connecting block 5 and affecting the use of the device. An air port 19 is provided on the top of the oil tank 1 to release the gas in the oil tank 1, and the connecting block 5 covers the oil inlet 14.

[0025] Working principle: When it is necessary to add lubricating oil to the screw compressor body 4, first let the external lubricating oil enter the oil tank 1 through the oil inlet pipe 3, so that the lubricating oil in the oil tank 1 gradually increases. At this time, the push plate 10 moves upward along the oil tank 1, and the spring 9 contracts. When it is necessary to add lubricating oil to the screw compressor body 4, turn the threaded rod 8 to move it out of the threaded hole, then turn the knob 7 to separate it from the baffle 6, pull the knob 7 upward, so that the connecting rod 13 drives the stopper 15 to move upward, and move the stopper 15 out of the oil inlet 14, and the second sealing ring 17 moves out of the slot 11. At this time, the spring 9 rebounds and stretches, so that the push plate 10 pushes the lubricating oil in the oil tank 1 through the slot 11 and the oil inlet 14 into the screw compressor body 4, so that the twin screws inside the screw compressor body 4 are lubricated.

[0026] The present invention has been described through the above embodiments. Those skilled in the art will understand that the present invention is not limited to the above embodiments, and more modifications can be made according to the teachings of the present invention. These modifications all fall within the scope of protection required by the present invention. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A lubricating mechanism for a screw compressor, comprising a screw compressor body (4), characterized in that: The top outer wall of the screw compressor body (4) is fixedly connected to two oil tanks (1), the interior of the oil tank (1) is movably connected to a push plate (10), the top of the push plate (10) is fixedly connected to a spring (9), and the spring (9) is fixed to the top inner wall of the oil tank (1), the top of the screw compressor body (4) is provided with an oil inlet (14), a connecting block (5) is fixedly connected between the two oil tanks (1), the interior of the connecting block (5) is provided with a slide groove (16), and the connecting block (5) is provided with a sliding groove (16). A connecting rod (13) is movably connected to the top, a block (15) is fixedly connected to the bottom end of the connecting rod (13), and the block (15) blocks the oil inlet (14), a second sealing ring (17) is fixedly connected to the bottom of the block (15), a notch (11) is provided on the side of the oil tank (1), and the second sealing ring (17) blocks the notch (11), a knob (7) is fixedly connected to the top end of the connecting rod (13), and a fixing component for limiting the rotation of the knob (7) is provided on one side outer wall of the oil tank (1).

2. The lubrication mechanism of a screw compressor according to claim 1, characterized in that: The fixing assembly comprises a baffle (6), which is fixed to an inner wall of one side of the oil tank (1) by means of bolts. The baffle (6) contacts a knob (7). A threaded rod (8) is inserted into the interior of the baffle (6). Both ends of the knob (7) are provided with threaded holes, and the threaded rod (8) is threadedly connected to the corresponding threaded holes.

3. The lubrication mechanism of a screw compressor according to claim 1, characterized in that: A refueling port is provided on one side of each of the two oil tanks (1), and an oil inlet pipe (3) is connected and fixed in the refueling port.

4. The lubrication mechanism of a screw compressor according to claim 3, characterized in that: A reverse flow valve (2) is installed inside the oil inlet pipe (3).

5. The lubrication mechanism of a screw compressor according to claim 1, characterized in that: The bottom end of the stopper (15) is provided with an inclined surface (18).

6. The lubrication mechanism of a screw compressor according to claim 1, characterized in that: A first sealing ring (12) is fixedly connected to the outer side of the top of the stop block (15), and the first sealing ring (12) is in contact with the inner wall of the connecting block (5).

7. The lubrication mechanism of a screw compressor according to claim 1, characterized in that: An air port (19) is provided on the top of the oil tank (1).

8. The lubrication mechanism of a screw compressor according to claim 1, characterized in that: The connecting block (5) covers the oil inlet (14).

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