Speed reducer with inner lubricating structure

Abstract

The speed reducer with the inner lubricating structure comprises a motor and a transmission case, and further comprises an oil pump, a first oil pipe and a flowing box, the motor, the transmission case and the oil pump are connected through a linkage assembly and used for driving the oil pump and the transmission case to operate, and an input port of the oil pump communicates with the transmission case through the first oil pipe; an output port of the oil pump communicates with the flowing box through the filtering assembly, the flowing box is arranged at the top in the transmission box, and a plurality of oil spraying holes are formed in the bottom of the flowing box and used for spraying lubricating oil. The oil pump is additionally arranged, the motor of the speed reducer drives the oil pump to operate in parallel through the linkage assembly, lubricating oil in the transmission box is pumped through the oil pump and conveyed into the flowing box arranged on the upper portion in the transmission box, then the lubricating oil is sprayed to the transmission structure from the oil spraying hole of the flowing box, and therefore the lubricating oil is evenly scattered on the transmission structure; and lubrication of each part is ensured.

Description

Technical Field

[0001] The present application relates to the technical field of reducers, and in particular to a reducer with an internal lubrication structure. Background Art

[0002] A reducer is an independent component consisting of a gear transmission, a worm transmission, or a gear-worm transmission enclosed in a rigid housing. It is often used as a reduction transmission device between the prime mover and the working machine. It matches the speed and transmits torque between the prime mover and the working machine or the actuator. It is widely used in modern machinery. As the application of reducers becomes more and more extensive, the demand for a reducer gearbox lubrication device that automatically injects lubricating oil is increasing.

[0003] A transmission structure composed of gear transmission, worm transmission and gear-worm transmission is arranged in the transmission box of the reducer. The transmission structure needs lubrication to ensure transmission efficiency and extend service life. The transmission box of the existing reducer is lubricated by the lubricating oil stored in its box. There is no design of actively spraying the lubricating oil on the transmission structure, which results in the transmission structure needing to be operated and then the lubricating oil flows on the transmission structure, so uneven lubrication of various components occurs. Summary of the invention

[0004] The purpose of the present application is to provide a reducer with an internal lubrication structure in order to solve the above-mentioned problem. An oil pump is added, and the oil pump is driven to operate in parallel by the motor of the reducer. The lubricating oil in the transmission box is extracted by the oil pump and sent to a flow box arranged above the transmission box, and then sprayed from the flow box to the transmission structure, so that the lubricating oil is evenly sprinkled on the transmission structure to ensure the lubrication of each component.

[0005] This application achieves the above objectives through the following technical solutions:

[0006] A reducer with an internal lubrication structure includes a motor and a transmission case, and also includes an oil pump, a first oil pipe, and a flow box. The motor, the transmission case, and the oil pump are connected through a linkage component to drive the oil pump and the transmission case to operate. The input port of the oil pump is connected to the transmission case through the first oil pipe, and the output port of the oil pump is connected to the flow box through a filter component. The flow box is arranged at the top of the transmission case, and a plurality of oil spray holes are provided at the bottom of the flow box for spraying lubricating oil.

[0007] Preferably, the linkage assembly includes a housing, a transmission shaft, a driven bevel gear and a driving bevel gear. The motor and the transmission box are fixedly connected through the housing. The output shaft of the motor is connected to the input shaft of the transmission box through the transmission shaft, and the transmission shaft passes through the housing. The driving bevel gear is arranged on the transmission shaft. The input shaft of the oil pump is connected to the driven bevel gear, and the driven bevel gear is meshed with the driving bevel gear.

[0008] Preferably, the filtering assembly includes a second oil pipe, a sealing box, a third oil pipe and a lubricating oil filter element. The first end of the second oil pipe is connected to the output port of the oil pump. The second end of the second oil pipe is provided with at least one pipe opening, and the pipe opening is connected to the bottom of the non-central area of ​​the sealing box. The sealing box has a receiving groove for a matching lubricating oil filter element. The first end of the third oil pipe passes through the bottom central area of ​​the receiving groove, and the end is detachably connected to the lubricating oil filter element. The second end of the third oil pipe is connected to the flow box.

[0009] Preferably, the portion of the third oil pipe passing through the receiving groove is provided with an external thread adapted to the internal thread of the lubricating oil filter element.

[0010] Preferably, the second end of the second oil pipe is provided with two pipe openings, and both are in communication with the bottom of the non-central area of ​​the receiving groove.

[0011] Compared with the prior art, the present application adopts an additional oil pump, and the motor of the reducer drives the oil pump in parallel through a linkage assembly. The lubricating oil in the transmission box is extracted by the oil pump and sent to a flow box arranged above the transmission box, and then sprayed out from the oil spray hole of the flow box to the transmission structure, so that the lubricating oil is evenly sprinkled on the transmission structure to ensure the lubrication of each component. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] The accompanying drawings are used to provide a further understanding of the present application and constitute a part of the specification. Together with the following specific embodiments, they are used to explain the present application but do not constitute a limitation to the present application. In the accompanying drawings:

[0013] Figure 1 It is a schematic diagram of the structure of this application;

[0014] Figure 2 It is a schematic diagram of the receiving tank structure of the present application;

[0015] Figure 3 It is a schematic diagram of the flow box structure of the present application;

[0016] Figure 4 It is a schematic diagram of the fuel injection hole structure of the present application.

[0017] The following are the descriptions of the reference numerals:

[0018] 1. Motor; 2. Transmission box; 3. Housing; 4. Transmission shaft; 5. Oil pump; 6. Driven bevel gear; 7. Driving bevel gear; 8. First oil pipe; 9. Second oil pipe; 10. Sealing box; 11. Receiving groove; 12. Third oil pipe; 13. Flow box; 14. Oil injection hole; 15. Lubricating oil filter element; 16. External thread. DETAILED DESCRIPTION

[0019] The technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all of the embodiments.

[0020] In the description of this application, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside" and the like indicate directions or positional relationships based on the attached Figure 1 , and is only for the convenience of describing the present application and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present application.

[0021] like Figure 1-4 As shown, a reducer with an internal lubrication structure includes a motor 1 and a transmission box 2, and also includes an oil pump 5, a first oil pipe 8, and a flow box 13. The motor 1 is connected to the transmission box 2 and the oil pump 5 through a linkage component to drive the oil pump 5 and the transmission box 2 to operate. The input port of the oil pump 5 is connected to the transmission box 2 through the first oil pipe 8, and the output port of the oil pump 5 is connected to the flow box 13 through a filter component. The flow box 13 is arranged at the top of the transmission box 2, and a plurality of oil spray holes 14 are provided at the bottom of the flow box 13 for spraying lubricating oil.

[0022] Specifically, the motor 1 is connected to the transmission box 2 and the oil pump 5 through a linkage component to drive the oil pump 5 and the transmission box 2 to operate. The motor 1 drives the transmission box 2 to operate and simultaneously drives the oil pump 5 to operate through the linkage component, so that the oil pump 5 extracts the lubricating oil at the bottom of the transmission box 2 through the first oil pipe 8, and the oil pump 5 allows the lubricating oil to flow into the flow box 13 through the filtering component, and then sprays the lubricating oil from the spray hole 14 onto the transmission structure in the transmission box 2; a plurality of spray holes 14 are provided at the bottom of the flow box 13 for spraying the lubricating oil, and the plurality of spray holes 14 allow the lubricating oil to be sprayed over a large area, so that the lubricating oil is evenly scattered on the transmission structure.

[0023] Preferably, the linkage assembly includes a housing 3, a transmission shaft 4, a driven bevel gear 6 and a driving bevel gear 7. The motor 1 and the transmission box 2 are fixedly connected through the housing 3. The output shaft of the motor 1 is connected to the input shaft of the transmission box 2 through the transmission shaft 4, and the transmission shaft 4 passes through the housing 3. The driving bevel gear 7 is provided on the transmission shaft 4. The input shaft of the oil pump 5 is connected to the driven bevel gear 6, and the driven bevel gear 6 is meshed with the driving bevel gear 7.

[0024] Specifically, the motor 1 and the transmission box 2 are fixedly connected by a shell 3 for connecting the motor 1 and the transmission box 2; the output shaft of the motor 1 is connected to the input shaft of the transmission box 2 through the transmission shaft 4 so that the power of the motor 1 is transmitted to the transmission box 2 through the transmission shaft 4; and the transmission shaft 4 passes through the shell 3, and the shell 3 is also a hollow structure, so that the transmission shaft 4, the driven bevel gear 6 and the driving bevel gear 7 are located therein, so that the shell 3 can also protect the transmission shaft 4, the driven bevel gear 6 and the driving bevel gear 7.

[0025] Preferably, the filtering assembly includes a second oil pipe 9, a sealing box 10, a third oil pipe 12 and a lubricating oil filter element 15. The first end of the second oil pipe 9 is connected to the output port of the oil pump 5. The second end of the second oil pipe 9 is provided with at least one pipe opening, and the pipe opening is connected to the bottom of the non-central area of ​​the sealing box 10. The sealing box 10 has a receiving groove 11 for a matching lubricating oil filter element 15. The first end of the third oil pipe 12 passes through the bottom central area of ​​the receiving groove 11, and the end is detachably connected to the lubricating oil filter element 15. The second end of the third oil pipe 12 is connected to the flow box 13.

[0026] Specifically, the first end of the second oil pipe 9 is connected to the output port of the oil pump 5, and the lubricating liquid extracted by the oil pump 5 is sent to the second oil pipe 9; the second end of the second oil pipe 9 is provided with at least one pipe opening, and the pipe opening is connected to the bottom of the non-central area of ​​the sealing box 10, and the lubricating liquid pumped by the oil pump 5 is sent to the receiving groove 11 on the sealing box 10 through the second oil pipe 9; the sealing box 10 has a receiving groove 11 for a matching lubricating oil filter element 15, and the first end of the third oil pipe 12 passes through the bottom central area of ​​the receiving groove 11, and the end is detachably connected to the lubricating oil filter element 15, the lubricating liquid flows from the second oil pipe 9 to the receiving groove 11, and then enters the lubricating oil filter element 15, and the lubricating liquid is filtered by the lubricating oil filter element 15 and then flows to the third oil pipe 12; the second end of the third oil pipe 12 is connected to the flow box 13, and then the filtered lubricating liquid enters the flow box 13 from the third oil pipe 12; the lubricating oil filter element 15 is a prior art, as shown in the patent document with publication number CN201482281U.

[0027] Preferably, the portion of the third oil pipe 12 passing through the receiving groove 11 is provided with an external thread 16 adapted to the internal thread of the lubricating oil filter element 15 , so that the lubricating oil filter element 15 and the third oil pipe 12 can be connected or disassembled.

[0028] Preferably, two pipe openings are provided at the second end of the second oil pipe 9, and both are connected to the bottom of the non-central area of ​​the receiving groove 11. The two pipe openings of the second oil pipe 9 discharge the lubricating oil to the receiving groove 11 at the same time, so that the lubricating oil quickly enters the lubricating oil filter element 15 for filtration.

[0029] In the above structure, the motor 1 drives the transmission shaft 4 to rotate. After the transmission shaft 4 rotates, it synchronously drives the active bevel gear 7 to rotate and the transmission box 2 to operate. After the active bevel gear 7 rotates, it engages and drives the driven bevel gear 6 to rotate. After the driven bevel gear 6 rotates, the oil pump 5 operates. Then the oil pump 5 extracts the lubricating oil at the bottom of the transmission box 2 through the first oil pipe 8, and the oil pump 5 sends it to the receiving groove 11 through the second oil pipe 9. Then the lubricating oil is filtered by the lubricating oil filter element 15 and then enters the third oil pipe 12. The lubricating oil flows from the third oil pipe 12 to the flow box 13, and then is sprayed from the oil spray hole 14 into the transmission box 2, so that it is evenly sprinkled on the transmission structure in the transmission box 2 to lubricate the transmission structure. At the same time, it can filter the lubricating oil to prevent impurities from wearing the transmission structure, thereby increasing the life of the transmission structure of the transmission box 2.

[0030] The above shows and describes the basic principles, main features and advantages of the present application. Those skilled in the art should understand that the present application is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principles of the present application. Without departing from the spirit and scope of the present application, the present application may have various changes and improvements, which fall within the scope of the present application to be protected. The scope of protection claimed in the present application is defined by the attached claims and their equivalents.

Claims

1. A speed reducer with an internal lubrication structure, comprising a motor (1) and a transmission box (2), characterized in that: The invention also comprises an oil pump (5), a first oil pipe (8), and a flow box (13); the motor (1) is connected to the transmission box (2) and the oil pump (5) via a linkage assembly for driving the oil pump (5) and the transmission box (2) to operate; the input port of the oil pump (5) is connected to the transmission box (2) via the first oil pipe (8); the output port of the oil pump (5) is connected to the flow box (13) via a filter assembly; the flow box (13) is arranged at the top of the transmission box (2); and a plurality of oil spray holes (14) are provided at the bottom of the flow box (13) for spraying lubricating oil.

2. The reducer with internal lubrication structure according to claim 1, characterized in that: The linkage assembly comprises a housing (3), a transmission shaft (4), a driven bevel gear (6) and a driving bevel gear (7); the motor (1) and the transmission box (2) are fixedly connected via the housing (3); the output shaft of the motor (1) is connected to the input shaft of the transmission box (2) via the transmission shaft (4); the transmission shaft (4) passes through the housing (3); the driving bevel gear (7) is arranged on the transmission shaft (4); the input shaft of the oil pump (5) is connected to the driven bevel gear (6), and the driven bevel gear (6) is meshed with the driving bevel gear (7).

3. A reducer with an internal lubrication structure according to claim 1 or 2, characterized in that: The filter assembly comprises a second oil pipe (9), a sealing box (10), a third oil pipe (12) and a lubricating oil filter element (15); the first end of the second oil pipe (9) is connected to the output port of the oil pump (5); the second end of the second oil pipe (9) is provided with at least one pipe opening, and the pipe opening is connected to the bottom of the non-central area of ​​the sealing box (10); the sealing box (10) has a receiving groove (11) adapted to the lubricating oil filter element (15); the first end of the third oil pipe (12) passes through the central area of ​​the bottom of the receiving groove (11), and the end is detachably connected to the lubricating oil filter element (15); the second end of the third oil pipe (12) is connected to the flow box (13).

4. The reducer with internal lubrication structure according to claim 3, characterized in that: The portion of the third oil pipe (12) that passes through the receiving groove (11) is provided with an external thread (16) that matches the internal thread of the lubricating oil filter element (15).

5. The reducer with internal lubrication structure according to claim 3, characterized in that: The second end of the second oil pipe (9) is provided with two pipe openings, both of which are in communication with the bottom of the non-central area of ​​the receiving groove (11).

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