Multi-stage gear speed reducer

Abstract

The utility model discloses a multi-stage gear speed reducer which comprises a main body module and a function module, and the function module is used for filtering and cooling lubricating oil in a speed reducer main body. Comprising a shell fixed to one side of a speed reducer body, a pump installed on the speed reducer body, a support fixed to the inner wall of the shell, a threaded base installed on the shell in a threaded connection mode and stretching into the shell, a filtering piece embedded between the support and the threaded base, and partition plates symmetrically fixed to the inner wall of the shell. The heat pipes are fixed between the opposite partition plates in an array mode, the water inlet pipeline is installed at the top end of the shell and communicated with an inner cavity of the shell, the water outlet pipeline is installed at the bottom end of the shell and communicated with the inner cavity of the shell, and the multi-stage gear speed reducer has the advantages of filtering and cooling lubricating oil and being high in practicability.

Description

Technical Field

[0001] The utility model relates to the technical field of speed reducers, and particularly relates to a multi-stage gear speed reducer. Background Technique

[0002] A speed reducer is an independent component composed of gear transmission, worm transmission, and gear-worm transmission enclosed in a rigid housing, and is commonly used as a speed reduction transmission device between a prime mover and a working machine. It plays a role in matching the rotational speed and transmitting torque between the prime mover and the working machine or the actuator, and is widely used in modern machinery.

[0003] The existing gear speed reducers mainly have the following disadvantages during use: the gears in the speed reducer need to be lubricated with lubricating oil to reduce the friction between gears. However, during long-term use, the debris generated by gear wear is easily incorporated into the lubricating oil, causing lubricating oil pollution. And during long-term operation, the temperature of the lubricating oil is prone to being too high, resulting in oxidation and deterioration of the lubricating oil, affecting the service life of the lubricating oil. Therefore, there is room for improvement. Content of the Utility Model

[0004] The utility model aims to solve one of the technical problems existing in the prior art or related technologies.

[0005] For this reason, the technical solution adopted by the utility model is as follows: a multi-stage gear speed reducer, including: a main body module and a functional module, the main body module includes a speed reducer main body and a motor installed on the speed reducer main body and extending into the speed reducer main body.

[0006] The functional module includes a housing fixed on one side of the speed reducer main body, a pump installed on the speed reducer main body, a support fixed on the inner wall of the housing, a threaded seat installed on the housing through threaded connection and extending into the housing, a filter element fitted between the support and the threaded seat, partitions symmetrically fixed on the inner wall of the housing, heat pipes arranged in an array between the opposite partitions, a water inlet pipe installed at the top of the housing and communicating with the inner cavity of the housing, and a water outlet pipe installed at the bottom of the housing and communicating with the inner cavity of the housing.

[0007] A temperature sensor extending into the housing is installed on one side of the housing, and an alarm lamp is installed at the top of the housing.

[0008] The utility model can be further configured in a preferred example as follows: an oil extraction pipe is provided at the inlet of the pump, one end of the oil extraction pipe is communicated with the inlet of the pump, and the other end is communicated with the inner cavity of the speed reducer main body. A connection pipe is provided at the outlet of the pump, one end of the connection pipe is communicated with the outlet of the pump, and the other end is communicated with the support.

[0009] The utility model can be further configured in a preferred example as follows: a return pipe communicating with the inner cavity of the speed reducer main body is provided on one side of the housing.

[0010] In a preferred embodiment of the present utility model, it can be further configured that: an upper ring groove is formed on the support, a lower ring groove is formed on the threaded seat, the top end of the filter element is fitted in the upper ring groove, and the bottom end is fitted in the lower ring groove.

[0011] In a preferred embodiment of the present utility model, it can be further configured that: the filter element includes a metal filter screen and a fiber filter screen arranged outside the metal filter screen.

[0012] In a preferred embodiment of the present utility model, it can be further configured that: the cavity between the opposing partition plates and the inner wall of the housing is a heat dissipation cavity, and both the water inlet pipe and the water outlet pipe are communicated with the heat dissipation cavity.

[0013] In a preferred embodiment of the present utility model, it can be further configured that: a plurality of baffle plates are arranged in an array on the inner wall of the heat pipe, and the adjacent baffle plates are centrosymmetric, forming an S-shaped flow channel in the heat pipe.

[0014] By adopting the above technical solutions, the beneficial effects achieved by the present utility model are as follows:

[0015] 1. In the present utility model, a housing is installed on one side of the reducer main body, and a pump is installed on the reducer main body. The inlet of the pump is communicated with the inner cavity of the reducer main body through an oil extraction pipe, and the outlet is communicated with the housing. At the same time, a support is fixed on the inner wall of the housing, and a threaded seat opposite to the support is installed by threaded connection. A filter element is arranged to be fitted between the two. When the reducer is running, the pump is started to pump the lubricating oil in the reducer main body into the filter element. The filter element filters impurities and the like in the lubricating oil, and the filtered lubricating oil is then sent back into the reducer main body, which can effectively reduce the metal particle impurities in the lubricating oil and improve the lubrication effect of the lubricating oil. In addition, the threaded seat is connected by threads, which is convenient for installation and disassembly. When it is necessary to clean or replace the filter element, only need to unscrew the threaded seat to remove the filter element, which is convenient to use.

[0016] 2. In the present utility model, partition plates are symmetrically fixed on the inner wall of the housing, and a plurality of heat pipes are fixedly arranged in an array between the opposing partition plates. At the same time, the cavity between the opposing partition plates and the inner wall of the housing is set as a heat dissipation cavity, and a water inlet pipe and a water outlet pipe are arranged to be communicated with the heat dissipation cavity. After the lubricating oil is filtered, it flows into the heat pipe. When the lubricating oil flows in the heat pipe, heat exchange is carried out with the cooling water outside through the heat pipe, so as to cool the lubricating oil and prevent the lubricating oil from having too high a temperature and reducing its service life. In addition, a temperature sensor extending into the housing is installed on one side of the housing, and the temperature sensor is used to monitor the oil temperature of the lubricating oil in real time, and when the oil temperature of the lubricating oil is too high, a warning light is used to remind the user, further increasing the practical performance. Description of the Drawings

[0017] Figure 1Schematic structural diagram of the present utility model;

[0018] Figure 2 Schematic structural diagram of another perspective of the present utility model;

[0019] Figure 3 Schematic functional module structure diagram of the present utility model;

[0020] Figure 4 Schematic cross-sectional view of the functional module of the present utility model

[0021] Figure 5 Schematic diagram of the heat pipe structure and its cross-sectional structure of the present utility model;

[0022] Figure 6 Schematic diagram of the filter element structure and its cross-sectional structure of the present utility model.

[0023] Reference numerals:

[0024] 100, main body module; 110, main body of the speed reducer; 120, motor;

[0025] 200, functional module; 210, housing; 211, return pipe; 212, temperature sensor; 213, alarm lamp; 220, pump; 221, oil pumping pipe; 222, connecting pipe; 230, support; 240, threaded seat; 250, filter element; 251, metal filter screen; 252, fiber filter screen; 260, partition board; 270, heat pipe; 271, baffle plate; 280, water inlet pipe; 290, water outlet pipe. Detailed implementation manners

[0026] To make the objectives, technical solutions and advantages of the present utility model clearer and more understandable, the present utility model will be further described in detail below in conjunction with the specific implementation manners and with reference to the accompanying drawings. It should be noted that, without conflict, the embodiments of the present utility model and the features in the embodiments may be combined with each other.

[0027] Some embodiments of the present utility model will be described below in conjunction with the accompanying drawings, Embodiment 1

[0028] Combined with Figure 1-6 As shown, this embodiment provides a multi-stage gear speed reducer, including: a main body module 100 and a functional module 200.

[0029] Among them, the main body module 100 includes a main body 110 of the speed reducer and a motor 120 installed on and extending into the main body 110 of the speed reducer. The main body 110 of the speed reducer is used to reduce the power input by the motor 120 to provide a greater torque output, and the motor 120 is used to input power to the main body 110 of the speed reducer.

[0030] The functional module 200 is used to filter and cool the lubricating oil in the reducer main body 110, and includes a housing 210 fixed on one side of the reducer main body 110, a pump 220 installed on the reducer main body 110, a support 230 fixed on the inner wall of the housing 210, a threaded seat 240 installed on the housing 210 through threaded connection and extending into the housing 210, a filter element 250 fitted between the support 230 and the threaded seat 240, partitions 260 symmetrically fixed on the inner wall of the housing 210, heat pipes 270 fixed in an array between the opposite partitions 260, a water inlet pipe 280 installed at the top of the housing 210 and communicating with the inner cavity of the housing 210, and a water outlet pipe 290 installed at the bottom of the housing 210 and communicating with the inner cavity of the housing 210.

[0031] The housing 210 is rectangular and fixed on one side of the reducer main body 110. An oil suction pipe 221 is provided at the inlet of the pump 220. One end of the oil suction pipe 221 is communicated with the inlet of the pump 220, and the other end is communicated with the inner cavity of the reducer main body 110, which is convenient for pumping out the lubricating oil in the inner cavity of the reducer main body 110. A connecting pipe 222 is provided at the outlet of the pump 220. One end of the connecting pipe 222 is communicated with the outlet of the pump 220, and the other end is communicated with the support 230, which is convenient for sending the pumped lubricating oil into the filter element 250.

[0032] An upper ring groove is formed on the support 230, and a lower ring groove is formed on the threaded seat 240. The top end of the filter element 250 is fitted in the upper ring groove, and the bottom end is fitted in the lower ring groove, which ensures the stability of the filter element 250. At the same time, the threaded seat 240 is threadedly connected with the housing 210, which is convenient for the installation and disassembly of the threaded seat 240, that is, convenient for the cleaning and replacement of the filter element 250.

[0033] The filter element 250 is used to filter metal particle impurities in the lubricating oil, and includes a metal filter screen 251 and a fiber filter screen 252 arranged outside the metal filter screen 251. The metal filter screen 251 is used to filter larger metal particles, and the fiber filter screen 252 is used to filter smaller particle impurities, ensuring the sufficiency of filtration.

[0034] The partitions 260 are symmetrically arranged. The cavity between the opposite partitions 260 and the inner wall of the housing 210 is a heat dissipation cavity. Both the water inlet pipe 280 and the water outlet pipe 290 are communicated with the heat dissipation cavity, which is convenient for sending cooling water into the heat dissipation cavity and discharging the cooling water after absorbing heat.

[0035] The heat pipes 270 are fixed on the partitions 260 and extend out of the partitions 260 at both ends for the lubricating oil to pass through. They are made of heat-conducting materials, so that when the lubricating oil passes through, heat exchange can be carried out between the lubricating oil and the cooling water through the heat pipes 270, thereby cooling the lubricating oil and preventing the lubricating oil temperature from being too high.

[0036] Further, a plurality of baffles 271 are arranged in an array on the inner wall of the heat pipe 270. The adjacent baffles 271 are centrosymmetric, forming an S-shaped flow channel in the heat pipe 270, so that the lubricating oil stays in the heat pipe 270 for a longer time, thereby improving the heat exchange efficiency, that is, improving the cooling effect on the lubricating oil.

[0037] A return pipe 211 is arranged on one side of the housing 210 and communicated with the inner cavity of the reducer main body 110, which is convenient for sending the filtered and cooled lubricating oil back to the inner cavity of the reducer main body 110.

[0038] A temperature sensor 212 extending into the housing 210 is installed on one side of the housing 210 for real-time monitoring of the temperature of the cooled lubricating oil. An alarm lamp 213 is installed at the top of the housing 210. When the temperature of the cooled lubricating oil is still at a relatively high temperature, the alarm lamp 213 is activated to alarm the user and remind the user to stop the machine for inspection.

[0039] The working principle and usage process of the present utility model are as follows: When the reducer main body 110 is running, the pump 220 is started to pump out the lubricating oil in the reducer main body 110 through the oil extraction pipe 221 and send it into the filter element 250 through the connection pipe 222. The lubricating oil enters the filter element 250, and the metal particles and impurities in the lubricating oil are filtered by the metal filter screen 251 and the fiber filter screen 252 to ensure the cleanliness of the lubricating oil. The filtered lubricating oil enters the heat pipe 270. At this time, the cooling water is sent through the water inlet pipe 280. The lubricating oil flows in the heat pipe 270 and exchanges heat with the cooling water through the heat pipe 270, thereby cooling the lubricating oil. The cooled lubricating oil is sent back into the reducer main body 110 through the return pipe 211 to form a cycle. In addition, the temperature sensor 212 monitors the temperature of the cooled lubricating oil. When the temperature of the cooled lubricating oil is still at a relatively high temperature, the alarm lamp 213 is started to alarm the user and remind the user to stop the machine to cool the lubricating oil of the reducer main body 110.

[0040] Although the embodiments of the present utility model have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and purposes of the present utility model. The scope of the present utility model is defined by the claims and their equivalents.

Claims

1. A multi-stage gear reducer, comprising: A main body module (100) and a functional module (200), characterized in that the main body module (100) comprises a reducer body (110) and a motor (120) mounted on the reducer body (110) and extending into the reducer body (110); The functional module (200) comprises a housing (210) fixed on one side of a reducer body (110), a pump (220) mounted on the reducer body (110), a support (230) fixed on the inner wall of the housing (210), a threaded seat (240) mounted on the housing (210) through a threaded connection and extending into the housing (210), a filter (250) embedded between the support (230) and the threaded seat (240), a partition (260) symmetrically fixed on the inner wall of the housing (210), a heat pipe (270) fixed in an array between opposite partitions (260), a water inlet pipe (280) mounted on the top end of the housing (210) and communicating with the inner cavity of the housing (210), and a water outlet pipe (290) mounted on the bottom end of the housing (210) and communicating with the inner cavity of the housing (210); A temperature sensor (212) extending into the shell (210) is installed on one side of the shell (210), and an alarm light (213) is installed on the top of the shell (210).

2. A multi-stage gear reducer according to claim 1, characterized in that: The inlet of the pump (220) is provided with an oil extraction pipeline (221), one end of which is connected to the inlet of the pump (220) and the other end of which is connected to the inner cavity of the reducer body (110); the outlet of the pump (220) is provided with a connecting pipeline (222), one end of which is connected to the outlet of the pump (220) and the other end of which is connected to the support (230).

3. A multi-stage gear reducer according to claim 1, characterized in that: A return pipe (211) is provided on one side of the housing (210) and is in communication with the inner cavity of the reducer body (110).

4. A multi-stage gear reducer according to claim 1, characterized in that: An upper annular groove is formed on the support (230), a lower annular groove is formed on the threaded seat (240), and the top end of the filter element (250) is embedded in the upper annular groove, and the bottom end is embedded in the lower annular groove.

5. The multi-stage gear reducer according to claim 1, characterized in that: The filter element (250) comprises a metal filter screen (251) and a fiber filter screen (252) arranged outside the metal filter screen (251).

6. A multi-stage gear reducer according to claim 5, characterized in that: The cavity between the relative partition plate (260) and the inner wall of the shell (210) is a heat dissipation cavity, and the water inlet pipe (280) and the water outlet pipe (290) are both in communication with the heat dissipation cavity.

7. The multi-stage gear reducer according to claim 1, characterized in that: A plurality of baffles (271) are arranged in an array on the inner wall of the heat pipe (270), and adjacent baffles (271) are centrally symmetrical, forming an S-shaped flow channel in the heat pipe (270).

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