Oil injection device for maintenance of a speed reducer

Abstract

The utility model discloses an oil injection device for maintenance of speed reducer is applied to the field of maintenance of speed reducer, including the bottom plate, the top of bottom plate is provided with the oil injection mechanism, the utility model discloses through the movement of sliding cylinder and make trapezoidal groove move, move the joint, the steel ball is under the action of joint groove and slides into trapezoidal groove and joint groove and separates the joint, and the mode of taking down the joint and replacing can reach the purpose of convenient replacement joint, reduces the work load, improves the efficiency of replacement, through the rotation protection shell, can adjust the pre -tightening of first spring, guarantee stability, the utility model through when oil injection, oil promotes the movement of blocking plate, makes blocking plate and fixed pipe inner wall and separates, carries out normal oil injection, after oil injection, oil pressure disappears, and blocking plate is under the action of second spring and is close to the inner wall of fixed pipe, and it is blocked, prevents the mode of oil outflow, can reach the purpose of anti -dripping, avoided the waste of oil, guaranteed the clean of working environment.

Description

Technical Field

[0001] This utility model relates to the field of speed reducer maintenance, and in particular to an oil injection device for speed reducer maintenance. Background Technology

[0002] A speed reducer is an independent component consisting of gear transmission, worm transmission, or gear-worm transmission enclosed in a rigid housing. It is commonly used as a speed reduction transmission device between the prime mover and the working machine. As the core equipment of an industrial transmission system, regular oil changes are crucial to ensuring the speed reducer's operational stability and extending its service life. When changing the oil, an oil injection device is needed to inject the oil into the speed reducer.

[0003] A search of Chinese patents revealed publication number CN211315060U, entitled "A Filling Device for Worm Gear Reducers that Reduces Oil Waste," which relates to the technical field of oil filling devices. This device solves the problem of existing oil filling devices easily causing excessive oil to overflow into the reducer, resulting in oil waste, and the inconvenience of pouring out the excess oil. The filling device for worm gear reducers includes a filling funnel; a connecting pipe is fixedly connected to one end of the bottom of the funnel. The device uses a sealing rubber ring to seal the filling port, ensuring that excess oil remains inside the funnel, preventing leakage. The excess oil remaining in the funnel is then drawn out of the reducer by siphoning and compression of an air bladder, improving the device's flexibility and efficiency.

[0004] Existing oil filling devices are inconvenient for changing connectors. Generally, the oil filling device connects to the reducer's filling port through a connector, but the connector size is fixed. When filling with oil filling ports of different sizes, the connector needs to be changed. The connector is usually connected to the oil filling pipe by a thread, which is troublesome to change, increases workload, reduces replacement efficiency, and does not have an anti-drip function. Generally, after filling, there will be residual oil in the oil filling pipe. When the connector is loosened from the oil filling port, the oil in the oil filling pipe will flow out from the oil filling head, causing waste and polluting the working environment. In order to solve the above problems, we propose an oil filling device for reducer maintenance. Utility Model Content

[0005] The purpose of this invention is to provide an oil injection device for the maintenance of a speed reducer, which has the advantages of easy replacement of connectors and anti-drip function.

[0006] The above-mentioned technical objective of this utility model is achieved through the following technical solution: an oil injection device for maintenance of a speed reducer, comprising a base plate, an oil injection mechanism provided on the top of the base plate, a fixed pipe connected to the output end of the oil injection mechanism, a connector slidably sleeved on the inner wall of the fixed pipe, an adjusting thread provided on the surface of the fixed pipe, a protective shell threadedly connected to the surface of the adjusting thread, a sliding cylinder slidably sleeved on the surface of the fixed pipe, and the sliding cylinder slidably sleeved with the inner wall of the protective shell, a first spring provided between the sliding cylinder and the inner wall of the protective shell, four trapezoidal grooves provided on the inner wall of the sliding cylinder, four steel balls provided on the inner wall of the fixed ring, and a snap-fit ​​groove provided on the surface of the connector, and the snap-fit ​​groove snaps with the steel balls.

[0007] By adopting the above technical solution, the trapezoidal groove is moved by moving the sliding cylinder, and the moving joint is moved. The steel ball slides into the trapezoidal groove under the action of the snap-fit ​​groove and disengages from the snap-fit ​​groove, so that the joint can be removed and replaced. This method can facilitate the replacement of the joint, reduce the workload, and improve the replacement efficiency. By rotating the protective shell, the preload of the first spring can be adjusted to ensure stability.

[0008] The present invention is further configured such that: a fixing frame is bolted to the inner wall of the fixing tube, a guide rod is slidably sleeved on the inner wall of the fixing frame, a blocking plate is bolted to one end of the guide rod, and a second spring is sleeved on the surface of the guide rod, and the second spring is located between the blocking plate and the fixing frame.

[0009] By adopting the above technical solution, during oil filling, the oil pushes the plug plate to move, causing the plug plate to detach from the inner wall of the fixed pipe for normal oil filling. After oil filling, the oil pressure disappears, and the plug plate, under the action of the second spring, sticks tightly to the inner wall of the fixed pipe, blocking it and preventing the oil from flowing out. This method can achieve the purpose of preventing dripping, avoiding oil waste, and ensuring a clean working environment.

[0010] The present invention is further configured such that: the oil injection mechanism includes an oil tank, the oil tank is connected to the top of the base plate, an oil pump is bolted to the top of the oil tank, the input end of the oil pump is connected to an oil suction pipe, the output end of the oil pump is connected to an oil injection pipe, and the other end of the oil injection pipe is connected to one end of a fixed pipe.

[0011] By adopting the above technical solution and setting up an oil injection mechanism, oil injection is facilitated.

[0012] The present invention is further configured such that a protective shell is bolted to the top of the oil tank, and the oil pump is located inside the protective shell.

[0013] By adopting the above technical solution, a protective shell is installed to protect the oil pump.

[0014] The present invention is further configured such that: a first sealing ring is provided between the connector and the inner wall of the fixing tube, and a second sealing ring is embedded in the surface of the blocking plate, and the surface of the second sealing ring is in close contact with the inner wall of the fixing tube.

[0015] By adopting the above technical solution, oil leakage is prevented and sealing is improved by setting a first sealing ring and a second sealing ring.

[0016] The present invention is further configured such that a fixing ring is threaded onto the surface of the fixing tube.

[0017] By adopting the above technical solution, the protective shell is fixed by setting a fixing ring, thereby improving stability.

[0018] The present invention is further configured such that casters are bolted to the four corners of the bottom of the base plate.

[0019] By adopting the above technical solution and setting omnidirectional wheels, the device can be easily moved.

[0020] The present invention is further configured such that a push handle is bolted to the top of the base plate.

[0021] By adopting the above technical solution and setting a push handle, the device can be easily moved.

[0022] In summary, this utility model has the following beneficial effects: 1. This utility model moves the trapezoidal groove by moving the sliding cylinder, and the moving joint, the steel ball slides into the trapezoidal groove under the action of the snap-fit ​​groove and disengages from the snap-fit ​​groove, so that the joint can be removed and replaced. This method can facilitate the replacement of the joint, reduce the workload, and improve the replacement efficiency. By rotating the protective shell, the preload of the first spring can be adjusted to ensure stability. 2. This utility model achieves the purpose of preventing oil dripping by using oil to push the plug plate to move during oil filling, causing the plug plate to detach from the inner wall of the fixed pipe for normal oil filling. After oil filling, the oil pressure disappears, and the plug plate, under the action of the second spring, sticks tightly to the inner wall of the fixed pipe, blocking it and preventing oil from flowing out. This avoids oil waste and ensures a clean working environment. Attached Figure Description

[0023] Figure 1 This is a three-dimensional structural view of the present invention; Figure 2 This is a partial three-dimensional cross-sectional view of the structure of this utility model; Figure 3 This is a partial three-dimensional cross-sectional view of the structure of this utility model; Figure 4 This is a partial three-dimensional cross-sectional view of the structure of this utility model; Figure 5 This is a utility model Figure 2Enlarged view of the structure at point A in the middle.

[0024] Reference numerals: 1. Base plate; 2. Oil injection mechanism; 3. Fixing pipe; 4. Connector; 5. Adjusting thread; 6. Protective shell; 7. Slide cylinder; 8. First spring; 9. Trapezoidal groove; 10. Steel ball; 11. Snap-fit ​​groove; 12. Fixing frame; 13. Guide rod; 14. Blocking plate; 15. Second spring; 16. Oil tank; 17. Oil pump; 18. Oil suction pipe; 19. Oil injection pipe; 20. Protective shell; 21. First sealing ring; 22. Second sealing ring; 23. Fixing ring; 24. Caster wheel; 25. Push handle. Detailed Implementation

[0025] The present invention will be further described in detail below with reference to the accompanying drawings.

[0026] Example 1: Reference Figure 1 , Figure 2 and Figure 4 A lubrication device for maintaining a speed reducer includes a base plate 1, an lubrication mechanism 2 on the top of the base plate 1, a fixed pipe 3 connected to the output end of the lubrication mechanism 2, a connector 4 slidably sleeved on the inner wall of the fixed pipe 3, an adjusting thread 5 on the surface of the fixed pipe 3, a protective shell 6 threadedly connected to the surface of the adjusting thread 5, a slide cylinder 7 slidably sleeved on the surface of the fixed pipe 3, and the slide cylinder 7 slidably sleeved with the inner wall of the protective shell 6, a first spring 8 between the slide cylinder 7 and the inner wall of the protective shell 6, and four trapezoidal grooves on the inner wall of the slide cylinder 7. 9. The inner wall of the fixing ring 23 is provided with four steel balls 10. The surface of the connector 4 is provided with a snap-fit ​​groove 11, and the snap-fit ​​groove 11 snaps with the steel balls 10. By moving the sliding cylinder 7, the trapezoidal groove 9 is moved, and the connector 4 is moved. The steel balls 10 slide into the trapezoidal groove 9 under the action of the snap-fit ​​groove 11 and disengage from the snap-fit ​​groove 11, so that the connector 4 can be removed and replaced. This method can facilitate the replacement of the connector 4, reduce the workload, and improve the replacement efficiency. By rotating the protective shell 6, the preload of the first spring 8 can be adjusted to ensure stability.

[0027] refer to Figure 1 and Figure 3 The oil injection mechanism 2 includes an oil tank 16, which is connected to the top of the base plate 1. An oil pump 17 is bolted to the top of the oil tank 16. The input end of the oil pump 17 is connected to an oil suction pipe 18, and the output end of the oil pump 17 is connected to an oil injection pipe 19. The other end of the oil injection pipe 19 is connected to one end of the fixed pipe 3. By setting the oil injection mechanism 2, oil injection is convenient.

[0028] refer to Figure 1 and Figure 3 A protective shell 20 is bolted to the top of the oil tank 16, and the oil pump 17 is located inside the protective shell 20. The oil pump 17 is protected by the protective shell 20.

[0029] refer to Figure 2 The surface of the fixed tube 3 is threaded with a fixing ring 23. By setting the fixing ring 23, the protective shell 6 is fixed, thereby improving stability.

[0030] Example 2: Reference Figure 2 and Figure 5 A fixing bracket 12 is bolted to the inner wall of the fixing pipe 3. A guide rod 13 is slidably sleeved on the inner wall of the fixing bracket 12. A blocking plate 14 is bolted to one end of the guide rod 13. A second spring 15 is sleeved on the surface of the guide rod 13 and is located between the blocking plate 14 and the fixing bracket 12. When oil is injected, the oil pushes the blocking plate 14 to move, causing the blocking plate 14 to separate from the inner wall of the fixing pipe 3 for normal oil injection. After oil injection, the oil pressure disappears, and the blocking plate 14, under the action of the second spring 15, adheres tightly to the inner wall of the fixing pipe 3, blocking it and preventing the oil from flowing out. This method can achieve the purpose of preventing dripping, avoiding the waste of oil, and ensuring the cleanliness of the working environment.

[0031] refer to Figure 2 and Figure 5 A first sealing ring 21 is provided between the inner wall of the connector 4 and the fixed pipe 3, and a second sealing ring 22 is embedded in the surface of the plug plate 14. The surface of the second sealing ring 22 is in close contact with the inner wall of the fixed pipe 3. By providing the first sealing ring 21 and the second sealing ring 22, oil leakage is prevented and the sealing performance is improved.

[0032] refer to Figure 1 The bottom of the base plate 1 is equipped with casters 24 at all four corners, which facilitates the movement of the device.

[0033] refer to Figure 1 A push handle 25 is bolted to the top of the base plate 1, which facilitates the movement of the device.

[0034] Brief description of the usage process: Connect connector 4 to the oil inlet on the reducer, then turn on the oil pump 17. The oil pump 17 delivers oil to the oil inlet pipe 19 through the oil suction pipe 18, then into the fixed pipe 3 from the oil inlet pipe 19, and finally into the reducer through connector 4. After the oil filling is completed, loosen connector 4 from the oil inlet. Move the sliding cylinder 7. The movement of the sliding cylinder 7 drives the trapezoidal groove 9 to move, aligning the trapezoidal groove 9 with the steel ball 10. Then move connector 4 outward. The movement of connector 4 drives the snap-fit ​​groove 11 to move. The snap-fit ​​groove 11 moves, causing the steel ball 10 to slide into the trapezoidal groove 9 and disengage from the snap-fit ​​groove 11. Remove connector 4, install the new connector 4 into the fixed cylinder, and loosen the sliding cylinder 7. Under the action of the first spring 8, the sliding cylinder 7 drives the trapezoidal groove 9 to reset. The groove 9 resets and pushes the steel ball 10 to engage with the snap-fit ​​groove 11, fixing the connector 4 and completing the replacement, thus facilitating the replacement of the connector 4. By loosening the fixing ring 23 and rotating the protective shell 6, the protective shell 6 moves, changing the elastic force of the first spring 8, which can adjust the preload of the first spring 8. During oil filling, the oil pump 17 delivers oil, and the oil has a certain pressure. When the oil pressure is greater than the elastic force of the second spring 15, the oil will push the plug plate 14 to move, opening the plug plate 14 for normal oil filling. After the oil filling is completed, the oil pump 17 stops working, the oil pressure disappears, and the second spring 15 pushes the plug plate 14 to press tightly against the inner wall of the fixing pipe 3, sealing it and preventing the oil from flowing out, thus achieving the purpose of preventing dripping.

[0035] It should be noted that parts have a lifespan and can be replaced during regular maintenance when they no longer meet performance requirements. Deterioration in performance due to prolonged use of parts is not a design defect of this application.

[0036] This specific embodiment is merely an explanation of the present utility model and is not intended to limit the present utility model. After reading this specification, those skilled in the art can make modifications to this embodiment without contributing any inventive step, but as long as they are within the scope of the claims of the present utility model, they are protected by patent law.

Claims

1. A lubrication device for maintenance of a speed reducer, comprising a base plate (1), characterized in that, The top of the base plate (1) is provided with an oil injection mechanism (2), the output end of the oil injection mechanism (2) is connected to a fixed pipe (3), the inner wall of the fixed pipe (3) is slidably sleeved with a connector (4), the surface of the fixed pipe (3) is provided with an adjustment thread (5), the surface of the adjustment thread (5) is threadedly connected with a protective shell (6), the surface of the fixed pipe (3) is slidably sleeved with a slide cylinder (7), and the slide cylinder (7) is slidably sleeved with the inner wall of the protective shell (6), a first spring (8) is provided between the slide cylinder (7) and the inner wall of the protective shell (6), the inner wall of the slide cylinder (7) is provided with four trapezoidal grooves (9), the inner wall of the fixed ring (23) is provided with four steel balls (10), the surface of the connector (4) is provided with a snap-fit ​​groove (11), and the snap-fit ​​groove (11) is snap-fitted with the steel balls (10).

2. The oil injection device for maintaining a speed reducer according to claim 1, characterized in that, The inner wall of the fixed tube (3) is bolted with a fixed frame (12), and the inner wall of the fixed frame (12) is slidably sleeved with a guide rod (13). One end of the guide rod (13) is bolted with a blocking plate (14), and a second spring (15) is sleeved on the surface of the guide rod (13), and the second spring (15) is located between the blocking plate (14) and the fixed frame (12).

3. The oil injection device for maintaining a speed reducer according to claim 1, characterized in that, The oil injection mechanism (2) includes an oil tank (16), which is connected to the top of the base plate (1). An oil pump (17) is bolted to the top of the oil tank (16). The input end of the oil pump (17) is connected to an oil suction pipe (18), and the output end of the oil pump (17) is connected to an oil injection pipe (19). The other end of the oil injection pipe (19) is connected to one end of a fixed pipe (3).

4. The oil injection device for maintaining a speed reducer according to claim 3, characterized in that, The top of the oil tank (16) is bolted with a protective shell (20), and the oil pump (17) is located inside the protective shell (20).

5. The oil injection device for maintaining a speed reducer according to claim 2, characterized in that, A first sealing ring (21) is provided between the inner wall of the connector (4) and the fixing tube (3), and a second sealing ring (22) is embedded in the surface of the blocking plate (14), and the surface of the second sealing ring (22) is in close contact with the inner wall of the fixing tube (3).

6. The oil injection device for maintaining a speed reducer according to claim 1, characterized in that, The surface of the fixed tube (3) is threaded with a fixing ring (23).

7. The oil injection device for maintaining a speed reducer according to claim 1, characterized in that, The bottom of the base plate (1) is fitted with casters (24) at all four corners.

8. The oil injection device for maintaining a speed reducer according to claim 1, characterized in that, A push handle (25) is bolted to the top of the base plate (1).

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