Closed speed reducer for tamping machine

Abstract

The invention relates to a closed speed reducer for a tamping machine, which relates to the technical field of speed reducers, and comprises a reduction gearbox, an input shaft, an output shaft, a transmission assembly and a sealing assembly, an input hole and an output hole are formed in the reduction gearbox in a communicating manner; the input shaft is arranged in the input hole in a penetrating mode, and one end of the input shaft is located in the reduction gearbox. The output shaft is arranged in the output hole in a penetrating mode, and one end of the output shaft is located in the reduction gearbox. The transmission assembly is arranged in the reduction gearbox and used for transmitting rotation of the input shaft to the output shaft and driving the output shaft to rotate. The sealing assembly is arranged on the reduction gearbox and used for sealing the input hole and the output hole. The performance of the tamping machine speed reducer can be improved, and the service life can be prolonged.

Description

Technical Field

[0001] The present application relates to the technical field of reducers, and in particular to a closed reducer for a tamping machine. Background Art

[0002] In the field of tamping machinery, the reducer is one of the key components, which can convert the high-speed rotation of the motor into a low-speed and high-torque output suitable for tamping operations.

[0003] The prior art generally adopts an open reducer or a simple closed reducer structure. Since the tamping machine needs to hammer the coal powder into coal cakes when working, there is a lot of dust in its working environment, which can easily enter the reducer and corrode the internal structure of the reducer, thereby affecting the performance and service life of the tamping machine reducer. Summary of the invention

[0004] In order to improve the performance and service life of a tamping machine reducer, the present application provides a closed reducer for a tamping machine.

[0005] The present application provides a closed reducer for a tamping machine, which adopts the following technical solution: A closed reducer for a tamping machine comprises a reduction box, an input shaft, an output shaft, a transmission assembly and a sealing assembly; the reduction box is provided with an input hole and an output hole; the input shaft is passed through the input hole, and one end is located inside the reduction box; the output shaft is passed through the output hole, and one end is located inside the reduction box; the transmission assembly is arranged inside the reduction box, and is used to transmit the rotation of the input shaft to the output shaft and drive the output shaft to rotate; the sealing assembly is arranged on the reduction box, and is used to seal the input hole and the output hole.

[0006] By adopting the above technical solution, when in use, the transmission assembly is used to transmit the rotation of the input shaft to the output shaft, and the output shaft is driven to rotate. The sealing assembly is used to seal the input hole and the output hole, so that the reducer is in a closed space, thereby preventing dust from entering the reducer and preventing the internal structure of the reducer from being corroded, thereby achieving the purpose of improving the performance and service life of the tamping machine reducer.

[0007] Optionally, the reduction gearbox is provided with a first sealing groove and a second sealing groove, wherein the first sealing groove is coaxially arranged with the input hole, and the first sealing groove is communicated with the input hole; the second sealing groove is coaxially arranged with the output hole, and the second sealing groove is communicated with the output hole; the sealing assembly includes a first sealing ring and a second sealing ring; the first sealing ring is fixedly arranged in the first sealing groove; the second sealing ring is fixedly arranged in the second sealing groove.

[0008] By adopting the above technical solution, the first sealing ring is fixedly arranged between the input hole and the input shaft by using the first sealing groove, thereby sealing the input hole, and the second sealing ring is fixedly arranged between the output hole and the output shaft by using the second sealing groove, thereby sealing the output hole.

[0009] Optionally, the transmission assembly includes a worm, a transmission shaft and a worm wheel; the worm is coaxially fixed on the input shaft; the transmission shaft is disposed inside the reduction gearbox and is rotationally connected to the reduction gearbox; the worm wheel is coaxially fixed on the transmission shaft, and the worm wheel is meshed with the worm; and the transmission shaft is connected to the output shaft.

[0010] By adopting the above technical solution, the worm and turbine are used to rotate, so that the rotation of the input shaft is transmitted to the transmission shaft, and the transmission shaft is driven to rotate; the high speed and small torque of the input shaft are converted into the low speed and large torque of the transmission shaft by the turbine and worm, so that it can meet the requirements of the tamping machine.

[0011] Optionally, the transmission assembly further includes a first bevel gear and a second bevel gear; the first bevel gear is coaxially fixed on the transmission shaft; the second bevel gear is coaxially fixed on the output shaft, and the second bevel gear is meshed with the first bevel gear.

[0012] By adopting the above technical solution, the first bevel gear and the second bevel gear are used to transmit the rotation of the transmission shaft to the output shaft, and the output shaft is driven to rotate; the bevel gear transmission can change the direction of the output shaft, thereby improving the adaptability of the reducer.

[0013] Optionally, a bearing assembly is provided on the reduction gearbox, and the bearing assembly includes a first bearing, a second bearing and a third bearing; two of the first bearing, the second bearing and the third bearing are each provided; the two first bearings are both coaxially arranged with the input shaft, the inner ring of the first bearing is fixedly connected to the input shaft, and the outer ring of the first bearing is fixedly connected to the reduction gearbox; the two second bearings are both coaxially arranged with the output shaft, the inner ring of the second bearing is fixedly connected to the output shaft, and the outer ring of the second bearing is fixedly connected to the reduction gearbox; the two third bearings are both coaxially arranged with the transmission shaft, the inner ring of the third bearing is fixedly connected to the transmission shaft, and the outer ring of the third bearing is fixedly connected to the reduction gearbox.

[0014] By adopting the above technical solution and utilizing the first bearing, the second bearing and the third bearing, the friction between the input shaft, the output shaft and the transmission shaft and the reduction box is greatly reduced, thereby improving the transmission performance and service life of the reduction box.

[0015] Optionally, an oil storage tank is provided at the bottom of the reduction gear box, and lubricating oil is preset in the oil storage tank; a lubrication assembly is provided on the reduction gear box, and the lubrication assembly includes an oil pipe and a controller; one end of the oil pipe is connected to the bottom of the oil storage tank, and the other end is located at the top of the worm wheel, the worm, the first bevel gear and the second bevel gear; an oil pump is installed on the oil pipe; a first oil injection hole and a second oil injection hole are connected on the oil pipe; the first oil injection hole is located at the top of the worm wheel and the worm; the second oil injection hole is located at the top of the connection between the first bevel gear and the second bevel gear; the controller is fixedly arranged on the reduction gear box, the controller is electrically connected to the oil pump, and the controller is used to control the working state of the oil pump.

[0016] By adopting the above technical solution, the oil pump is controlled by a controller to make the oil pump work intermittently, and the lubricating oil in the oil storage tank is transported to the first oil spray hole and the second oil spray hole through the oil delivery pipe and sprayed onto the worm wheel, the worm, the first bevel gear and the second bevel gear, so as to lubricate the worm wheel, the worm, the first bevel gear and the second bevel gear, thereby improving the transmission performance and service life of the reducer, and solving the problem that the closed reducer cannot be directly coated with lubricating oil.

[0017] Optionally, the lubrication assembly further includes an oil filling pipe, which is passed through the reduction gearbox and communicated with the oil storage tank; a valve is installed on the oil filling pipe.

[0018] By adopting the above technical solution, when the lubricating oil in the oil storage tank is exhausted, the operator opens the valve and adds lubricating oil into the oil storage tank through the oil filling pipe, which is simple to operate and convenient to use.

[0019] Optionally, the reduction gearbox is provided with an observation window for observing the liquid level in the oil storage tank, and the observation window is made of a transparent material.

[0020] By adopting the above technical solution, the operator can observe the amount of lubricating oil in the oil storage tank through the observation window, so as to add lubricating oil in time.

[0021] In summary, the present application includes at least one of the following beneficial technical effects: By setting a sealing component, the input hole and the output hole are sealed, so that the reducer is in a closed space, thereby preventing dust from entering the reducer and preventing the internal structure of the reducer from being corroded, thereby achieving the purpose of improving the performance and service life of the tamping machine reducer; By setting the bearing assembly and utilizing the first bearing, the second bearing and the third bearing, the friction between the input shaft, the output shaft and the transmission shaft and the reduction box is greatly reduced, thereby improving the transmission performance and service life of the reducer; By setting a lubrication component and using a controller to control the oil pump, the oil pump is made to work intermittently, and the lubricating oil in the oil storage tank is transported to the first oil spray hole and the second oil spray hole through the oil delivery pipe and sprayed onto the worm wheel, worm, first bevel gear and second bevel gear, so as to lubricate the worm wheel, worm, first bevel gear and second bevel gear, thereby improving the transmission performance and service life of the reducer and solving the problem that the closed reducer cannot be directly coated with lubricating oil. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the structure of an embodiment of the present application; Figure 2 This is a cross-sectional view of an embodiment of the present application for showing a first sealing ring; Figure 3 This is a cross-sectional view of an embodiment of the present application for showing the second sealing ring; Figure 4 This is a cross-sectional view of an embodiment of the present application for showing a lubrication component.

[0023] Description of reference numerals: 1. Speed ​​reducer; 11. Input hole; 12. Output hole; 13. First sealing groove; 14. Second sealing groove; 15. Oil storage tank; 16. Observation window; 2. Input shaft; 3. Output shaft; 4. Transmission assembly; 41. Worm; 42. Transmission shaft; 43. Worm wheel; 44. First bevel gear; 45. Second bevel gear; 5. Sealing assembly; 51. First sealing ring; 52. Second sealing ring; 6. Bearing assembly; 61. First bearing; 62. Second bearing; 63. Third bearing; 7. Lubrication assembly; 71. Oil delivery pipe; 711. Oil pump; 712. First oil spray hole; 713. Second oil spray hole; 72. Controller; 73. Oil filling pipe; 731. Valve. DETAILED DESCRIPTION

[0024] The following is combined with Figure 1-4 This application is described in further detail.

[0025] The present application embodiment discloses a closed reducer for a tamping machine. Figures 1 to 4 The closed reducer for the tamping machine includes a reduction box 1, an input shaft 2, an output shaft 3 and a transmission assembly 4.

[0026] Reference Figure 2 and Figure 3The two opposite side walls of the reduction box 1 are connected to each other with an input hole 11 and an output hole 12. The input shaft 2 is inserted into the input hole 11, with one end located inside the reduction box 1 and the other end extending outside the reduction box 1. The output shaft 3 is inserted into the output hole 12, with one end located inside the reduction box 1 and the other end extending outside the reduction box 1.

[0027] The transmission assembly 4 is arranged inside the reduction box 1, and the transmission assembly 4 includes a worm 41, a transmission shaft 42, a worm wheel 43, a first bevel gear 44 and a second bevel gear 45. The worm 41 is coaxially fixed on the input shaft 2. The transmission shaft 42 is arranged inside the reduction box 1 and is rotatably connected to the reduction box 1. The axial direction of the transmission shaft 42 is perpendicular to the axial direction of the input shaft 2 and the axial direction of the output shaft 3. The worm wheel 43 is coaxially fixed on the transmission shaft 42, and the worm wheel 43 is meshed with the worm 41. The first bevel gear 44 is coaxially fixed on the transmission shaft 42. The second bevel gear 45 is coaxially fixed on the output shaft 3, and the second bevel gear 45 is meshed with the first bevel gear 44.

[0028] Reference Figure 2 and Figure 3 The reduction box 1 is provided with a bearing assembly 6, which includes a first bearing 61, a second bearing 62 and a third bearing 63. Two first bearings 61, two second bearings 62 and two third bearings 63 are provided. The two first bearings 61 are both embedded in the reduction box 1, the inner ring of the first bearing 61 is coaxially fixedly connected to the input shaft 2, and the outer ring of the first bearing 61 is fixedly connected to the reduction box 1. The two second bearings 62 are both embedded in the reduction box 1, the inner ring of the second bearing 62 is coaxially fixedly connected to the output shaft 3, and the outer ring of the second bearing 62 is fixedly connected to the reduction box 1.

[0029] Both third bearings 63 are coaxially arranged with the transmission shaft 42, one of the third bearings 63 is embedded in the reduction gearbox 1, the inner ring of the third bearing 63 is fixedly connected to the transmission shaft 42, and the outer ring of the third bearing 63 is fixedly connected to the reduction gearbox 1, and the other third bearing 63 is embedded in the support plate for supporting the output shaft 3, the inner ring of the third bearing 63 is fixedly connected to the transmission shaft 42, and the outer ring of the third bearing 63 is fixedly connected to the support plate.

[0030] The reduction box 1 is provided with a first sealing groove 13, which is coaxially arranged with the input hole 11 and communicated with the input hole 11. The reduction box 1 is provided with a sealing assembly 5, which includes a first sealing ring 51, which is interference-arranged in the first sealing groove 13, the inner ring of which is tightly fitted with the input shaft 2, and the first sealing ring 51 is located on a side of the first bearing 61 away from the interior of the reduction box 1.

[0031] The reduction box 1 is provided with a second sealing groove 14, which is coaxially arranged with the output hole 12 and communicated with the output hole 12. The sealing assembly 5 also includes a second sealing ring 52, which is interference-arranged in the second sealing groove 14, the inner ring of which is tightly fitted with the output shaft 3, and the second sealing ring 52 is located on the side of the second bearing 62 away from the interior of the reduction box 1.

[0032] Reference Figure 4 An oil storage tank 15 is provided at the bottom of the reduction box 1 , and the oil storage tank 15 is communicated with the interior of the reduction box 1 , and lubricating oil is preset in the oil storage tank 15 .

[0033] The reduction box 1 is provided with a lubrication assembly 7, which includes an oil delivery pipe 71, a controller 72 and an oil filling pipe 73. The oil delivery pipe 71 is located inside the side wall of the reduction box 1, one end of the oil delivery pipe 71 extends to the bottom wall of the reduction box 1, and is connected to the oil storage tank 15, and the connection point is located at the bottom of the oil storage tank 15. The other end of the oil delivery pipe 71 extends to the inside of the reduction box 1 and is located at the top of the worm wheel 43, the worm 41, the first bevel gear 44 and the second bevel gear 45.

[0034] The oil delivery pipe 71 is connected with a first oil injection hole 712 and a second oil injection hole 713; the first oil injection hole 712 is located at the top of the worm wheel 43 and the worm 41; the second oil injection hole 713 is located at the top of the connection between the first bevel gear 44 and the second bevel gear 45. An oil pump 711 is fixedly installed on the oil delivery pipe 71, and the oil pump 711 is used to transport the lubricating oil in the oil storage tank 15 through the oil delivery pipe 71 to the first oil injection hole 712 and the second oil injection hole 713 for spraying.

[0035] The controller 72 is fixedly arranged on the outer wall of the reduction box 1 and is electrically connected to the oil pump 711. The controller 72 is used to control the working state of the oil pump 711 so that the oil pump 711 can deliver lubricating oil regularly.

[0036] The oil filling pipe 73 is passed through the reduction box 1, and the oil filling pipe 73 is connected with the oil storage tank 15. A valve 731 is installed on the oil filling pipe 73, and the valve 731 is used to adjust the connection state of the oil filling pipe 73. An observation window 16 for observing the liquid level in the oil storage tank 15 is provided on the side wall of the reduction box 1, and the observation window 16 is made of a transparent material.

[0037] The implementation principle of a closed reducer for a tamping machine in the embodiment of the present application is: When in use, the input shaft 2 is connected to the drive motor through a coupling, and the drive motor drives the input shaft 2 to rotate, thereby driving the worm 41 to rotate, and the rotation of the worm 41 drives the turbine and the transmission shaft 42 to rotate, thereby converting the high speed and small torque of the motor into the low speed and large torque of the transmission shaft 42, and then the first bevel gear 44 and the second bevel gear 45 are used to transmit the rotation of the transmission shaft 42 to the output shaft 3, and drive the output shaft 3 to rotate. It should be noted that the direction of the output shaft 3 can be arbitrarily changed by using the first bevel gear and the second bevel gear 45, and is not limited to the case where the output shaft 3 and the input shaft 2 are parallel as shown in this example.

[0038] The input hole 11 is sealed by the first sealing ring 51 , and the output hole 12 is sealed by the second sealing ring 52 , so as to prevent external dust from entering the reduction box 1 and corroding the parts in the reduction box 1 .

[0039] By providing the first bearing 61 , the second bearing 62 and the third bearing 63 , the friction between the input shaft 2 , the output shaft 3 and the transmission shaft 42 and the reduction box 1 can be reduced, thereby improving the transmission performance and service life.

[0040] During use, the controller 72 works to control the oil pump 711, so that the oil pump 711 starts at a fixed time. The oil pump 711 is used to transport the lubricating oil in the oil storage tank 15 through the oil delivery pipe 71 to the first oil injection hole 712 and the second oil injection hole 713 for spraying. The lubricating oil sprayed from the first oil injection hole 712 drips on the worm gear 43 and the worm 41, and the lubricating oil sprayed from the second oil injection hole 713 drips on the connection between the first bevel gear 44 and the second bevel gear 45, so as to lubricate the worm gear 43, the worm 41, the first bevel gear 44 and the second bevel gear 45. The sprayed oil will flow downward and flow back into the oil storage tank 15. The amount of lubricating oil in the oil storage tank 15 can be observed through the observation window 16 during operation. If the lubricating oil is exhausted, the valve 731 can be opened to add lubricating oil to the oil storage tank 15 through the oil filling pipe 73.

[0041] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A closed reducer for a tamping machine, Features: The invention comprises a reduction box (1), an input shaft (2), an output shaft (3), a transmission assembly (4) and a sealing assembly (5); the reduction box (1) is provided with an input hole (11) and an output hole (12) which are connected to each other; the input shaft (2) is inserted into the input hole (11) and one end of the input shaft (2) is located inside the reduction box (1); the output shaft (3) is inserted into the output hole (12) and one end of the output shaft (3) is located inside the reduction box (1); the transmission assembly (4) is arranged inside the reduction box (1) and is used to transmit the rotation of the input shaft (2) to the output shaft (3) and drive the output shaft (3) to rotate; the sealing assembly (5) is arranged on the reduction box (1) and is used to seal the input hole (11) and the output hole (12).

2. The closed reducer for a tamping machine according to claim 1, Features: The reduction gearbox (1) is provided with a first sealing groove (13) and a second sealing groove (14); the first sealing groove (13) is coaxially arranged with the input hole (11), and the first sealing groove (13) is communicated with the input hole (11); the second sealing groove (14) is coaxially arranged with the output hole (12), and the second sealing groove (14) is communicated with the output hole (12); the sealing assembly (5) comprises a first sealing ring (51) and a second sealing ring (52); the first sealing ring (51) is fixedly arranged in the first sealing groove (13); and the second sealing ring (52) is fixedly arranged in the second sealing groove (14).

3. The closed reducer for a tamping machine according to claim 1, Features: The transmission assembly (4) comprises a worm (41), a transmission shaft (42) and a worm wheel (43); the worm (41) is coaxially fixedly arranged on the input shaft (2); the transmission shaft (42) is arranged inside the reduction box (1) and is rotationally connected to the reduction box (1); the worm wheel (43) is coaxially fixedly arranged on the transmission shaft (42), and the worm wheel (43) meshes with the worm (41); and the transmission shaft (42) is connected to the output shaft (3).

4. The enclosed reducer for a tamping machine according to claim 3, Features: The transmission assembly (4) further comprises a first bevel gear (44) and a second bevel gear (45); the first bevel gear (44) is coaxially fixedly arranged on the transmission shaft (42); the second bevel gear (45) is coaxially fixedly arranged on the output shaft (3), and the second bevel gear (45) meshes with the first bevel gear (44).

5. The closed reducer for a tamping machine according to claim 4, Features: The reduction box (1) is provided with a bearing assembly (6), the bearing assembly (6) comprising a first bearing (61), a second bearing (62) and a third bearing (63); two of the first bearing (61), the second bearing (62) and the third bearing (63) are provided; the two first bearings (61) are coaxially arranged with the input shaft (2), the inner ring of the first bearing (61) is fixedly connected to the input shaft (2), and the outer ring of the first bearing (61) is fixedly connected to the reduction box (1); the two second bearings (62) are coaxially arranged with the output shaft (3), the inner ring of the second bearing (62) is fixedly connected to the output shaft (3), and the outer ring of the second bearing (62) is fixedly connected to the reduction box (1); the two third bearings (63) are coaxially arranged with the transmission shaft (42), the inner ring of the third bearing (63) is fixedly connected to the transmission shaft (42), and the outer ring of the third bearing (63) is fixedly connected to the reduction box (1).

6. The enclosed reducer for a tamping machine according to claim 4, Features: The reduction box (1) is provided with an oil storage tank (15) at the bottom, and lubricating oil is preset in the oil storage tank (15); the reduction box (1) is provided with a lubrication assembly (7), and the lubrication assembly (7) comprises an oil delivery pipe (71) and a controller (72); one end of the oil delivery pipe (71) is connected to the bottom of the oil storage tank (15), and the other end is located at the top of the worm wheel (43), the worm (41), the first bevel gear (44) and the second bevel gear (45); an oil pump (711) is installed on the oil delivery pipe (71); A first oil injection hole (712) and a second oil injection hole (713) are connected and opened on the pipe (71); the first oil injection hole (712) is located at the top of the worm wheel (43) and the worm (41); the second oil injection hole (713) is located at the top of the connection between the first bevel gear (44) and the second bevel gear (45); the controller (72) is fixedly arranged on the reduction box (1); the controller (72) is electrically connected to the oil pump (711); and the controller (72) is used to control the working state of the oil pump (711).

7. The closed reducer for a tamping machine according to claim 6, Features: The lubrication assembly (7) further comprises an oil injection pipe (73), wherein the oil injection pipe (73) is passed through the reduction box (1) and is in communication with the oil storage tank (15); a valve (731) is installed on the oil injection pipe (73).

8. The enclosed reducer for a tamping machine according to claim 7, Features: The reduction box (1) is provided with an observation window (16) for observing the liquid level in the oil storage tank (15), and the observation window (16) is made of a transparent material.

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