Gear box for speed reducer

Abstract

The gear box for the speed reducer comprises an upper box body, a lower box body, an inner box body, a heat dissipation box and a liquid storage box, the inner box body is arranged in the lower box body, a liquid inlet is formed in the bottom of the lower box body, a liquid outlet is formed in the upper portion of the lower box body, heat dissipation holes are formed in the box wall of the heat dissipation box, and the liquid storage box is arranged in the liquid storage box. A liquid inlet is formed in the heat dissipation box, a heat dissipation pipe arranged in a snake shape is arranged in the heat dissipation box, the liquid outlet is communicated with one end of the heat dissipation pipe, the other end of the heat dissipation pipe is communicated with the liquid storage box, a water inlet pipe is arranged between the liquid storage box and the liquid inlet for communication, and a water pump is arranged on the water inlet pipe. When the gearbox body needs to be cooled, cooling liquid is added into the liquid storage tank, the water pump is started to inject the cooling liquid into the cooling channel along the water inlet pipe, cooling of the interior of the inner box body is achieved, the cooling liquid flows into the cooling pipe along the cooling channel along the liquid outlet, and after cooling, the cooling liquid flows into the liquid storage tank again to circularly cool the gearbox body.

Description

Technical Field

[0001] This utility model relates to the field of gearbox housing technology, and in particular to a gearbox for a speed reducer. Background Technology

[0002] A speed reducer is an important mechanical transmission device, mainly used to reduce speed and increase torque to meet the needs of various mechanical equipment. It mainly consists of a housing, gears, shafts, bearings, and seals. Through gear meshing, it converts the high-speed, low-torque input shaft into the low-speed, high-torque output shaft. It is widely used in manufacturing, transportation, and construction engineering, providing power support for various mechanical equipment. Gearboxes generate high temperatures during operation, but existing gearbox housings are mainly made of cast iron, cast aluminum, or welded steel plates, resulting in poor heat dissipation. Utility Model Content

[0003] The present invention aims to address the shortcomings of the prior art by providing a gearbox for a speed reducer.

[0004] To achieve the above objectives, this utility model adopts the following technical solution: A gearbox for a reducer, comprising: an upper housing, a lower housing, an inner housing, a heat dissipation box, and a liquid storage tank. The upper housing and the lower housing are fixedly connected by bolts. The inner housing is disposed inside the lower housing. The sealed space formed between the inner housing and the lower housing constitutes a cooling channel. A support plate is fixedly disposed between the inner housing and the lower housing. Several water-permeable holes are provided on the support plate. Heat dissipation fins are provided on the outer side of the inner housing. A liquid inlet is provided at the bottom of the lower housing. A liquid outlet is provided at the top of the lower housing. Heat dissipation holes are provided on the wall of the heat dissipation box. A serpentine arrangement of heat dissipation pipes is disposed inside the heat dissipation box. The liquid outlet is connected to one end of the heat dissipation pipes, and the other end of the heat dissipation pipes is connected to the liquid storage tank. A water inlet pipe is provided between the liquid storage tank and the liquid inlet, and a water pump is disposed on the water inlet pipe.

[0005] Furthermore, the top of the liquid storage tank is provided with a liquid replenishment port, and the liquid replenishment port is provided with a cap.

[0006] Furthermore, the bottom of the heat sink is provided with several support bases, which support the bottom of the heat sink pipe.

[0007] Furthermore, a ventilation opening is provided on the side of the heat sink, a fixed bracket is fixedly installed inside the ventilation opening, an axial fan is installed inside the fixed bracket, a mesh cover is installed on the outside of the fixed bracket, and a filter screen is installed on the inside of the fixed bracket.

[0008] Furthermore, an oil pump is installed on the outside of the upper housing, and the oil pump is connected to an oil injector, with the nozzle of the oil injector aligned with the gear meshing point.

[0009] Furthermore, an oil level indicator is installed on the side wall of the lower housing, and an oil drain hole is provided on the side wall of the lower housing, with a magnetic oil plug installed in the oil drain hole.

[0010] Furthermore, a viewing cover is provided on the top of the upper housing, and a vent valve is provided on the viewing cover.

[0011] The beneficial effects of this utility model are as follows: When it is necessary to cool down the gearbox housing, coolant is added to the storage tank, and the water pump is started to inject the coolant into the cooling channel along the inlet pipe, thereby cooling the inside of the housing. The coolant flows into the heat dissipation pipe along the outlet of the cooling channel, and after heat dissipation, it flows back into the storage tank, thereby achieving cyclic cooling of the gearbox. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the structure of this utility model;

[0013] Figure 2 for Figure 1 Sectional view of section AA;

[0014] Figure 3 for Figure 2 Sectional view of section BB;

[0015] In the diagram: 1-Upper housing; 2-Lower housing; 3-Inner housing; 4-Heat dissipation box; 5-Liquid reservoir; 6-Cooling channel; 7-Support plate; 8-Heat dissipation fins; 9-Liquid inlet; 10-Liquid outlet; 11-Heat dissipation hole; 12-Heat dissipation pipe; 13-Water inlet pipe; 14-Water pump; 15-Liquid replenishment port; 16-Cap; 17-Support base; 18-Fixing frame; 19-Axial fan; 20-Mesh cover; 21-Filter screen; 22-Oil pump; 23-Oil injector; 24-Oil level indicator; 25-Magnetic oil plug; 26-Inspection cap; 27-Ventilation valve;

[0016] The accompanying drawings in this utility model are all schematic diagrams and their sizes do not represent actual dimensions.

[0017] The following will describe in detail the embodiments of this utility model with reference to the accompanying drawings. Detailed Implementation

[0018] The present invention will be further described below with reference to the accompanying drawings and embodiments:

[0019] like Figures 1-3As shown, a gearbox for a speed reducer includes: an upper housing 1, a lower housing 2, an inner housing 3, a heat dissipation box 4, and a liquid storage tank 5. The upper housing 1 and the lower housing 2 are fixedly connected by bolts. The inner housing 3 is disposed inside the lower housing 2. The sealed space formed between the inner housing 3 and the lower housing 2 forms a cooling channel 6. A support plate 7 is fixedly disposed between the inner housing 3 and the lower housing 2. The support plate 7 has several water-permeable holes. The outer side of the inner housing 3 is provided with... The lower housing 2 is equipped with heat dissipation fins 8. A liquid inlet 9 is provided at the bottom of the lower housing 2, and a liquid outlet 10 is provided at the top of the lower housing 2. Heat dissipation holes 11 are provided on the walls of the heat dissipation box 4. A serpentine arrangement of heat dissipation pipes 12 is provided inside the heat dissipation box 4. The liquid outlet 10 is connected to one end of the heat dissipation pipe 12, and the other end of the heat dissipation pipe 12 is connected to the liquid storage tank 5. A water inlet pipe 13 is provided between the liquid storage tank 5 and the liquid inlet 9, and a water pump 14 is provided on the water inlet pipe 13.

[0020] Specifically, the upper housing 1 and the lower housing 2 are connected by bolts. The parting surface is usually located on the plane of the axis, which facilitates assembly and maintenance. A gear reduction device is installed inside the housing. When the gearbox housing needs to be cooled, the water pump 14 is started to inject the coolant in the storage tank 5 into the cooling channel 6 through the inlet 9 via the inlet pipe 13. After cooling the oil pool inside the inner housing 3, the coolant flows into the heat dissipation pipe 12 along the outlet 10 of the cooling channel 6. After being ventilated and cooled through the heat dissipation holes 11, it flows back into the storage tank 5 to circulate and cool the gearbox.

[0021] The liquid storage tank 5 has a liquid replenishment port 15 on its top, and a cover 16 is provided on the liquid replenishment port 15. Coolant is added to the liquid storage tank 5 through the liquid replenishment port 15 by opening the cover 16.

[0022] The bottom of the heat sink 4 is provided with several support seats 17, which support the bottom of the heat sink 12.

[0023] A ventilation opening is provided on the side of the heat sink 4. A mounting bracket 18 is fixedly installed inside the ventilation opening. An axial fan 19 is installed inside the mounting bracket 18. A mesh cover 20 is installed on the outside of the mounting bracket 18, and a filter screen 21 is installed on the inside of the mounting bracket 18. The axial fan 19 is turned on to provide forced cooling for the heat pipe 12.

[0024] An oil pump 22 is installed on the outside of the upper housing 1. The oil pump 22 is connected to an oil injector 23, and the nozzle of the oil injector 23 is aligned with the gear meshing point to ensure that the gears are adequately lubricated during operation.

[0025] An oil level indicator 24 is installed on the side wall of the lower housing 2, and an oil drain hole is provided on the side wall of the lower housing 2. A magnetic oil plug 25 is installed in the oil drain hole. The oil drain hole is located at the bottom of the housing for easy replacement of lubricating oil. The magnetic oil plug 25 adsorbs metal wear particles in the lubricating oil, extending the oil's life.

[0026] The top of the upper housing 1 is equipped with a viewing cover 26, and a vent valve 27 is installed on the viewing cover 26. The viewing cover 26 is made of plexiglass or tempered glass and is used to monitor gear meshing and oil level. The vent valve 27 balances the air pressure inside and outside the housing to prevent excessive internal pressure due to temperature rise and oil leakage, or negative pressure that draws in dust. It has built-in filter cotton or molecular sieve to filter moisture and particles in the air.

[0027] The method of using this utility model is as follows: when it is necessary to cool down the gearbox housing, open the cover 16 and add coolant to the storage tank 5 through the replenishment port 15. Start the water pump 14 to inject the coolant in the storage tank 5 into the cooling channel 6 through the inlet port 9 along the water inlet pipe 13. After cooling the oil pool inside the inner housing 3, the coolant flows into the heat dissipation pipe 12 along the outlet port 10 along the cooling channel 6. Turn on the axial fan 19 to force heat dissipation of the heat dissipation pipe 12. After ventilation and heat dissipation through the heat dissipation holes 11, it flows back into the storage tank 5 to circulate and cool the gearbox.

[0028] The present invention has been described above with reference to the accompanying drawings. Obviously, the specific implementation of the present invention is not limited to the above-described manner. Any improvements made using the inventive concept and technical solution of the present invention, or direct application to other situations without modification, are all within the protection scope of the present invention.

Claims

1. A gear box for a speed reducer, characterized by, Include: Upper box (1), lower box (2), inner box (3), heat sink box (4), liquid storage tank (5), the upper box (1) and the lower box (2) are fixedly connected by bolts, the inner box (3) is arranged inside the lower box (2), the sealed space formed between the inner box (3) and the lower box (2) forms a cooling channel (6), the support strip (7) is fixedly arranged between the inner box (3) and the lower box (2), a plurality of water holes are formed in the support strip (7), the outer side of the inner box (3) is provided with a heat dissipation fin (8), the lower box (2) bottom is provided with a liquid inlet (9), the lower box (2) upper portion is provided with a liquid outlet (10), the tank wall of the heat sink box (4) is provided with a heat dissipation hole (11), the heat sink box (4) is provided with a serpentine arranged heat dissipation pipe (12), the liquid outlet (10) and one end of the heat dissipation pipe (12) are communicated, the other end of the heat dissipation pipe (12) and the liquid storage tank (5) are communicated, the water inlet pipe (13) is arranged between the liquid storage tank (5) and the liquid inlet (9), and the water pump (14) is arranged on the water inlet pipe (13).

2. A gearbox for a speed reducer according to claim 1, characterized in that, The liquid storage tank (5) top is provided with a liquid supplementing port (15), and the liquid supplementing port (15) is provided with a cover (16).

3. The gear box for a speed reducer according to claim 1, wherein The heat sink box (4) bottom is provided with a plurality of support seats (17), and the support seats (17) are supported on the heat dissipation pipe (12) bottom.

4. The gear box for a speed reducer according to claim 1, wherein The side of the heat sink box (4) is provided with a ventilation opening, the fixed frame (18) is fixedly installed in the ventilation opening, the axial flow fan (19) is installed in the fixed frame (18), the mesh cover (20) is installed on the outer side of the fixed frame (18), and the filter screen (21) is installed on the inner side of the fixed frame (18).

5. The gear box for a speed reducer according to claim 1, wherein The oil pump (22) is installed outside the upper box (1), the oil pump (22) is connected with the oil nozzle (23), and the nozzle of the oil nozzle (23) is aligned with the gear meshing portion.

6. A gearbox for a speed reducer according to claim 5, wherein The oil mark (24) is arranged on the side wall of the lower box (2), the oil drain hole is arranged on the side wall of the lower box (2), and the magnetic oil plug (25) is arranged in the oil drain hole.

7. A gearbox for a speed reducer according to claim 6, wherein The upper box (1) top is provided with a peep cover (26), and the peep cover (26) is provided with a breather valve (27).

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