Outer circulation type speed reducer lubricating system

Abstract

According to the outer circulation type speed reducer lubricating system, a speed reducer comprises a protection box and a speed reducer on the upper side in the protection box, an oil inlet and a first oil outlet are formed in the speed reducer, an oil storage cavity is formed in the position, located below the speed reducer, in the protection box, and a second oil outlet is formed in the lower side of the oil storage cavity; one side of the oil filling pump is communicated with the oil tank, the oil filling pump is communicated with the oil inlet through an oil inlet pipe, the second oil outlet is communicated with the oil tank through an oil outlet pipe, and lubricating oil outer circulation operation of the oil filling pump, the oil inlet pipe, the oil inlet, the first oil outlet, the oil storage cavity, the second oil outlet, the oil outlet pipe and the oil tank is completed. Lubricating oil can be fully cooled in the oil storage cavity, the oil tank ensures that only part of the lubricating oil always participates in circulating work, it is further ensured that the lubricating oil can well complete heat dissipation, finally, the lubricating oil input into the speed reducer has the low temperature, the service life of the speed reducer is ensured, and the service life of the speed reducer is prolonged. And long-time operation can be realized.

Description

Technical Field

[0001] The utility model relates to the technical field of speed reducers, in particular to an external circulation speed reducer lubrication system. Background Art

[0002] Reducers are commonly used transmission devices in the mechanical field, generally including various reduction methods such as planetary, cycloid and gear types. In order to ensure the precision and reliability of the internal transmission structure of the reducer, lubricating oil is usually injected inside to ensure its smooth operation. However, this method of directly adding lubricating oil into the reducer will cause the lubricating oil to expand due to overheating after working for a certain period of time, and may even damage the transmission structure.

[0003] The application document with application number CN200920236240.6 in the patent library discloses a vertical cycloid pinwheel reducer with a lubricating oil external circulation structure, in which the oil inlet pipe for external circulation is connected to the top of the casing, and the oil outlet pipe is directly connected to the bottom of the casing. That is, when the external circulation device is working, the lubricating oil inside the casing is directly pumped to the oil pump through the oil outlet pipe, and directly transported to the casing through the oil inlet pipe. All the lubricating oil participates in the circulation operation, so that when the reducer overheats due to long-term operation, it cannot be effectively cooled, and the overheated lubricating oil will still affect the normal operation of the reducer. Utility Model Content

[0004] In order to solve the technical problems existing in the above-mentioned background technology, the utility model provides an external circulation reducer lubrication system.

[0005] The technical solution of this utility model is as follows:

[0006] An external circulation reducer lubrication system comprises a reducer and an external circulation device, wherein the reducer can complete the reception of high-speed input power and the reduction output operation, and the external circulation device can circulate oil for the reducer to ensure that the lubricating oil can fully dissipate heat, thereby ensuring that the reducer can operate for a long time.

[0007] As one of the core technical concepts of the utility model, the reducer includes a protective box and a reducer on the upper side thereof, the reducer is provided with an oil inlet and a first oil outlet, an oil storage chamber is provided at a position below the reducer inside the protective box, and a second oil outlet is provided at the lower side of the oil storage chamber; and as another core technical concept of the utility model, the external circulation device includes an oil tank and an oil injection pump connected to the oil tank on one side thereof, the oil injection pump is connected to the oil inlet through an oil inlet pipe, and the second oil outlet is connected to the oil tank through an oil outlet pipe. On the basis of the above structure, the oil injection pump is connected to the oil inlet through the oil injection pipe. The lubricating oil in the oil tank can be injected into the reducer, and the lubricating oil leaked from the oil outlet of the reducer can be pre-collected in the oil storage chamber and transported back to the oil tank through the oil inlet pipe to complete the external circulation of the lubricating oil. The setting of the oil storage chamber allows the lubricating oil leaked from the reducer to be fully cooled, and the setting of the oil tank ensures that only a part of the lubricating oil inside it is always involved in the circulation work, further ensuring that the lubricating oil can complete the heat dissipation well, and finally making the lubricating oil input into the reducer have a lower temperature, ensuring the service life of the reducer and enabling it to run for a long time.

[0008] As a preferred embodiment, in order to reduce the space occupied by the overall layout of the reducer lubrication system (the above-mentioned external circulation reducer lubrication system) and enable the lubricating oil in the oil storage chamber to flow back to the oil tank better in cooperation with the oil filling pump, a bracket is also provided on the lower side of the protective box, and the external circulation device is located inside the bracket.

[0009] In the external circulation reducer lubrication system as described above, in order to facilitate real-time observation of the lubricating oil capacity and status in the oil storage chamber to determine whether the lubricating oil needs to be supplemented or replaced, a first observation port is opened on the side wall of the protective box, and the height of the first observation port is not lower than the setting height of the oil storage chamber.

[0010] As a preferred embodiment, in order to prevent external impurities from affecting the lubricating oil inside the protective box through the first observation port, a first transparent plate is detachably provided on the first observation port.

[0011] As described above, in order to prevent the oil inlet end of the oil inlet pipe from being disconnected from the oil inlet port due to excessive oil pressure and to facilitate real-time observation of the connection status of the oil inlet pipe and the oil inlet port, a second observation port is opened on the upper side of the protective box corresponding to the connection position between the oil inlet pipe and the oil inlet port.

[0012] As a preferred embodiment, in order to prevent external impurities from affecting the lubricating oil inside the protective box through the second observation port, a second transparent plate is detachably provided on the second observation port.

[0013] As described above, an external circulation reducer lubrication system, in terms of the structure of the reducer, includes a housing and an input shaft and an output shaft arranged on opposite sides thereof, a reduction mechanism drivingly connected to the input shaft and the output shaft is arranged inside the housing, and in order to ensure the lubrication effect of the circulating lubricating oil on the internal reduction mechanism, the oil inlet and the first oil outlet are respectively opened on one side of the housing close to the input shaft and the output shaft.

[0014] In order to further reduce the space occupied by the reducer lubrication system and improve its reduction transmission accuracy, the reduction mode of the reduction mechanism is a multi-stage planetary type.

[0015] In the external circulation reducer lubrication system as described above, in order to facilitate real-time observation of the oil inlet amount of the oil inlet pipe and prevent the operation of the reducer from being affected by the oil supply, a flow indicator is also connected to the oil inlet pipe.

[0016] The beneficial effects of the utility model are as follows: the utility model is an external circulation reducer lubrication system, the lubricating oil in the oil tank can be injected into the reducer through the oil injection pump, and the lubricating oil leaked from the oil outlet of the reducer can be pre-accepted into the oil storage chamber, and transported back to the oil tank through the oil inlet pipe, completing the external circulation operation of the lubricating oil, the setting of the oil storage chamber allows the lubricating oil leaked from the reducer to be fully cooled, and the setting of the oil tank ensures that only a part of the lubricating oil inside it is always involved in the circulation work, further ensuring that the lubricating oil can complete the heat dissipation well, and finally making the lubricating oil input into the reducer have a lower temperature, ensuring the service life of the reducer, and enabling it to operate for a long time. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] By reading the detailed description of the preferred embodiment below, the scheme and advantages of the present application will become clear to those skilled in the art. The accompanying drawings are only used to illustrate the preferred embodiment and are not considered to be limiting of the present invention.

[0018] In the attached picture:

[0019] Figure 1 It is a structural schematic diagram of the reducer lubrication system in the embodiment;

[0020] Figure 2 It is a structural schematic diagram of the internal and external circulation device in the embodiment;

[0021] The components represented by the reference numerals in the figure are:

[0022] 1. Protection box; 11. First observation port; 2. Speed ​​reducer; 3. External circulation device; 31. Oil tank; 32. Motor; 33. Pump; 34. Oil inlet pipe; 35. Oil outlet pipe; 36. Flow indicator. DETAILED DESCRIPTION

[0023] Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings.

[0024] Example

[0025] This embodiment provides an external circulation reducer lubrication system, see Figure 1 , including a reducer and an external circulation device 3, wherein the reducer can complete the reception of high-speed input power and the reduction output operation, and the external circulation device 3 can circulate oil for the reducer 2 to ensure that the lubricating oil can fully dissipate heat, thereby ensuring that the reducer can operate for a long time. The structure of the reducer lubrication system (the above-mentioned external circulation reducer lubrication system) is described in detail below.

[0026] In this embodiment, as one of the core technical concepts of the utility model, the reducer includes a protective box 1 and a reducer 2 on the upper side thereof, the reducer 2 is provided with an oil inlet and a first oil outlet, an oil storage chamber is provided inside the protective box 1 below the reducer 2, and a second oil outlet is provided on the lower side of the oil storage chamber.

[0027] Specifically, the protective box 1 is a sealed shell-like structure of a rectangular parallelepiped (or cube) as a whole, and the reducer 2 includes a columnar shell and an input shaft and an output shaft arranged on opposite sides (two ends of the shell) thereof. The oil inlet and the first oil outlet are opened on the shell and connected to the interior of the shell. A reduction mechanism is also provided inside the shell, which is transmission-connected to the input shaft and the output shaft. The two ends of the shell are respectively fixed to the inner side walls of the protective box 1 on both sides opposite to each other. The input shaft and the output shaft extend out of the protective box 1, and an oil storage chamber is formed at the lower part of the protective box 1. The external circulation device 3 is configured to input the lubricating oil from the oil inlet into the interior of the shell of the reducer 2, and then discharge it from the oil outlet of the shell of the reducer 2 to the oil storage chamber, and receive the lubricating oil through the second oil outlet at the lower end of the oil storage chamber, and re-transport it to the interior of the shell to complete the circulation operation of the lubricating oil.

[0028] In order to ensure the lubrication effect of the circulating lubricating oil on the internal reduction mechanism, as a preferred implementation in this embodiment, the oil inlet and the first oil outlet are respectively opened on one side of the outer ring of the housing close to the input shaft and the output shaft.

[0029] In order to further reduce the space occupied by the reducer lubrication system and improve its reduction transmission accuracy, the reduction mode of the reduction mechanism is a multi-stage planetary type.

[0030] As a further preference, in order to facilitate real-time observation of the lubricating oil capacity and status in the oil storage chamber to determine whether the lubricating oil needs to be supplemented or replaced, a first observation port 11 is opened on the side wall of the protective box 1, and the height of the first observation port 11 is not lower than the setting height of the oil storage chamber.

[0031] More preferably, in order to prevent external impurities from affecting the lubricating oil inside the protective box 1 through the first observation port 11 , a first transparent plate is detachably provided on the first observation port 11 .

[0032] In this embodiment, combined with Figure 2 As another core technical concept of the present invention, the external circulation device 3 includes an oil tank 31 and an oil injection pump connected to the oil tank 31 on one side thereof, wherein the oil injection pump includes a motor 32 located on the upper side of the oil tank 31 and a pump 33 drivingly connected to the motor 32 on one side of the motor 32, wherein the pump 33 of the oil injection pump is connected to the oil inlet through an oil inlet pipe 34, and the second oil outlet is connected to the oil tank 31 through an oil outlet pipe 35. On the basis of the above structure, the motor 32 of the oil injection pump can drive the pump 33 to operate, and then the lubricating oil in the oil tank 31 can be injected into the reducer 2 through the oil inlet pipe 34, and the lubricating oil leaked from the oil outlet of the reducer 2 can be pre-accepted into the oil storage chamber and transported back to the oil tank 31 through the oil inlet pipe 34, thereby completing the external circulation operation of the lubricating oil.

[0033] On the basis of the above structure, the setting of the oil storage chamber enables the lubricating oil leaked from the reducer to be fully cooled, and the setting of the oil tank 31 ensures that only a part of the lubricating oil inside it is always involved in the circulation work, further ensuring that the lubricating oil can complete the heat dissipation well, and finally making the lubricating oil input into the reducer 2 have a lower temperature, ensuring the service life of the reducer 2, and enabling it to operate for a long time.

[0034] In order to facilitate real-time observation of the oil intake of the oil inlet pipe 34 and prevent the operation of the reducer 2 from being affected by the oil supply, a flow indicator 36 is also connected to the oil inlet pipe 34 .

[0035] As a preferred embodiment, in order to reduce the space occupied by the overall layout of the reducer lubrication system and enable the lubricating oil in the oil storage chamber to flow back to the oil tank 31 in cooperation with the oil injection pump, a bracket (not shown) is further provided on the lower side of the protection box 1, and the external circulation device 3 is located inside the bracket ( Figure 1 In order to conveniently demonstrate the coordination structure between the external circulation device 3 and the reducer, the external circulation device 3 is moved to the outside of the bracket).

[0036] As a further preference, in order to prevent the oil inlet end of the oil inlet pipe 34 from being disconnected from the oil inlet port due to excessive oil pressure and to facilitate real-time observation of the connection status of the oil inlet pipe 34 and the oil inlet port, a second observation port is opened on the upper side of the protective box 1 corresponding to the connection position between the oil inlet pipe 34 and the oil inlet port.

[0037] More preferably, in order to prevent external impurities from affecting the lubricating oil inside the protective box 1 through the second observation port, a second transparent plate is detachably provided on the second observation port.

Claims

1. An external circulation reducer lubrication system, characterized in that: The reducer comprises a protective box (1) and a reducer (2) on the upper side thereof, the reducer (2) being provided with an oil inlet and a first oil outlet, an oil storage chamber being provided at a position below the reducer (2) inside the protective box (1), and a second oil outlet being provided at the lower side of the oil storage chamber; It also includes an external circulation device (3), the external circulation device (3) including an oil tank (31) and an oil injection pump connected to the oil tank on one side, the oil injection pump is connected to the oil inlet through an oil inlet pipe (34), and the second oil outlet is connected to the oil tank (31) through an oil outlet pipe (35).

2. The external circulation reducer lubrication system according to claim 1, characterized in that: A bracket is also provided on the lower side of the protection box (1), and the external circulation device (3) is located inside the bracket.

3. An external circulation reducer lubrication system according to claim 1 or 2, characterized in that: A first observation port (11) is provided on the side wall of the protection box (1), and the height of the first observation port (11) is not lower than the setting height of the oil storage cavity.

4. The external circulation reducer lubrication system according to claim 3, characterized in that: The first observation port (11) is detachably provided with a first transparent plate.

5. An external circulation reducer lubrication system according to claim 1 or 2, characterized in that: A second observation port is provided on the upper side of the protection box (1) corresponding to the connection position between the oil inlet pipe (34) and the oil inlet port.

6. The external circulation reducer lubrication system according to claim 5, characterized in that: The second observation port is detachably provided with a second transparent plate.

7. An external circulation reducer lubrication system according to claim 1 or 2, characterized in that: The reducer (2) comprises a housing and an input shaft and an output shaft arranged on opposite sides thereof, wherein a reduction mechanism is arranged inside the housing and is transmission-connected to the input shaft and the output shaft; The oil inlet and the first oil outlet are respectively opened on one side of the housing close to the input shaft and the output shaft.

8. The external circulation reducer lubrication system according to claim 7, characterized in that: The speed reduction mode of the speed reduction mechanism is a multi-stage planetary type.

9. The external circulation reducer lubrication system according to claim 1, characterized in that: The oil inlet pipe (34) is also connected to a flow indicator (36).

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