Intelligent temperature control self-lubricating speed reducer and using method thereof

Abstract

The invention discloses an intelligent temperature control self-lubricating speed reducer, and relates to the technical field of speed reducers, the intelligent temperature control self-lubricating speed reducer comprises a speed reducer body, an oil storage cavity is formed in the top of the body, a heat dissipation bin is arranged on the left side of the body, a working cavity is formed in the middle of the body, and a multi-stage planetary gear speed reduction module is arranged in the working cavity; an oil filling hole with a sealing cover and an overflow sensor are arranged at the top of the oil storage cavity, two parallel oil inlet paths and an oil return path are arranged between the oil storage cavity and the working cavity, a temperature sensor and a magnetostriction liquid level meter are arranged in the working cavity, an oil quality sensor and a vortex separator are arranged on the oil return path, and the oil quality sensor is connected with the vortex separator. The overflow sensor, the temperature sensor, the magnetostriction liquid level meter, the oil quality sensor and the vortex separator are all in signal connection with a processor, the two oil inlet ways are switched for oil inlet according to the lubricating oil temperature, monitored by the temperature sensor, in the working cavity, and the speed reducer has the advantages that the lubricating effect of the speed reducer is improved, and the service life of the speed reducer is prolonged.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of speed reducer, in particular to an intelligent temperature control self-lubricating speed reducer. BACKGROUND

[0002] As a key component in modern mechanical transmission systems, multi-stage planetary gear reducer, with its efficient and compact structure design, realizes precise output of large torque and low speed through the meshing of multi-stage planetary gears, effectively improving the stability and durability of the transmission system.

[0003] Lubrication, as an indispensable part of the operation of multi-stage planetary gear reducer, plays a crucial role. It not only effectively reduces friction and wear between gears, prolongs the service life of equipment, but also protects the gear surface by forming an oil film, preventing overheating and noise caused by direct contact. Good lubrication conditions can also optimize the efficiency of gear transmission, ensuring the smoothness and accuracy of power transmission.

[0004] The traditional lubrication system of the speed reducer has the following problems:

[0005] 1. Insufficient heat dissipation: oil temperature is easy to exceed the limit under high-speed heavy-load working conditions, resulting in reduced lubricating oil viscosity and accelerated gear wear; 2. Single oil circuit: only relying on gravity or oil pump for oil supply, oil flowability is poor at low temperature and heat dissipation efficiency is low at high temperature; 3. Pollution out of control: metal particles accumulate and accelerate component failure, and manual oil quality detection is lagging; 4. Lack of intelligence: liquid level / oil temperature / oil quality rely on manual monitoring and cannot respond to abnormalities in real time.

[0006] Therefore, it is necessary to design an intelligent temperature control self-lubricating speed reducer to improve the lubrication effect of the speed reducer. SUMMARY

[0007] The present application aims to provide an intelligent temperature control self-lubricating speed reducer to solve the problems raised in the background.

[0008] In order to solve the above technical problems, the present application provides the following technical scheme: an intelligent temperature control self-lubricating speed reducer, comprising a speed reducer body, the top of the body is provided with an oil storage cavity, the left side of the body is provided with a heat dissipation bin, the middle part of the body is provided with a working cavity, the working cavity is provided with a multi-stage planetary gear reduction module, the top of the oil storage cavity is provided with an oil filling hole with a sealing cover and an overflow sensor, two parallel oil inlet channels and an oil return channel are provided between the oil storage cavity and the working cavity, a temperature sensor and a magnetostrictive liquid level meter are provided in the working cavity, an oil quality sensor and a vortex separator are provided on the oil return channel, the overflow sensor, the temperature sensor, the magnetostrictive liquid level meter, the oil quality sensor and the vortex separator are all signal connected with a processor, and the oil temperature of the lubricating oil in the working cavity monitored by the temperature sensor is used to switch the oil inlet of the two oil inlet channels.

[0009] According to the above technical solution, the two oil inlet paths include oil inlet path one and oil inlet path two. Oil inlet path one includes several siphon tubes arranged in a straight line. Each siphon tube is an inverted U-shaped structure and a solenoid valve is provided at the top bend. The siphon tube connects the oil storage chamber and the working chamber. A first filter installed at an angle is provided at the oil storage chamber inlet of the siphon tube.

[0010] According to the above technical solution, the second oil inlet includes an oil pump and a radiator connected in sequence. The oil pump and the radiator are located in a heat dissipation chamber. The input end of the oil pump is connected to the oil storage chamber through a pipe. The output end of the oil pump is connected to the input end of the radiator. The output end of the radiator is connected to the working chamber. The radiator includes a copper tube with heat dissipation fins.

[0011] According to the above technical solution, a primary filter is provided on the oil pump input pipe, and a secondary filter is provided on the oil pump output pipe to the radiator. The primary filter is a cyclone filter, and the secondary filter is a glass fiber filter element.

[0012] According to the above technical solution, the first filter, the primary filter and the secondary filter are all equipped with drain valves at the bottom.

[0013] According to the above technical solution, the oil return circuit includes an oil return pipe connecting the working chamber and the oil storage chamber. The oil quality sensor and the vortex separator are connected sequentially on the oil return pipe along the lubricating oil flow direction. The oil quality sensor is used to detect the viscosity, acid value and water content of the lubricating oil.

[0014] According to the above technical solution, the heat dissipation chamber is equipped with a fan unit that supplies air to the radiator. Several heat dissipation holes are generated on both sides of the heat dissipation chamber wall adjacent to the fan unit. The several heat dissipation holes are arranged in an array. A heat insulation plate is provided between the heat dissipation chamber and the working chamber.

[0015] According to the above technical solution, the processor is preset with a normal liquid level value Y1 and a liquid level warning value Y2 in the working chamber. When the oil temperature is ≤60℃ and the liquid level is Y2±1mm, the first oil inlet is activated to replenish oil to the liquid level Y1. When the oil temperature is >60℃, the second oil inlet is activated to replenish oil to the liquid level Y1.

[0016] According to the above technical solution, the method of using the intelligent temperature-controlled self-lubricating reducer is as follows: The processor is preset with viscosity warning value N1, actual viscosity value N2, acid value warning value D1, actual acid value D2, water content warning value H1, and actual water content value H2. The processor detects and processes the lubricating oil in the return oil circuit according to the judgment order of actual viscosity value N2, actual acid value D2, and actual water content value H2.

[0017] The method includes S1: when N2 < N1, the lubricating oil viscosity is determined to be normal; when N2 ≥ N1, the lubricating oil viscosity is determined to be abnormal, the vortex separator is started to purify the lubricating oil and then it is re-monitored until N2 < N1.

[0018] S2: After S1 is detected as normal, if D2≤D1, the acid value of the lubricating oil is determined to be within the standard; if D2>D1, the acid value of the lubricating oil is determined to be within the standard, triggering an oil change alarm.

[0019] S3: After S2 is detected normally, if H2≤H1, it is determined that the water content of the lubricating oil is not excessive; if H2>H1, it is determined that the water content of the lubricating oil is excessive, and centrifugal dehydration is performed through a vortex separator until H2≤H1.

[0020] Compared with the prior art, the beneficial effects achieved by the present invention are: the present invention improves the oil supply effect of the reducer by setting up a dual oil inlet circuit and controlling the state switching oil supply circuit of the reducer.

[0021] By setting up a multi-stage filtration device, the impact of particles on the operation of the speed reducer is reduced, and the lubrication effect on the speed reducer is improved.

[0022] By setting up a return oil circuit, the lubricating oil can be recycled. By installing an oil quality sensor and a vortex separator on the return oil circuit, the quality of the lubricating oil can be monitored and processed to ensure the lubricating effect of the lubricating oil on the reducer. Attached Figure Description

[0023] The accompanying drawings are provided to further illustrate the invention and form part of the specification. They are used in conjunction with embodiments of the invention to explain the invention and do not constitute a limitation thereof. In the drawings:

[0024] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0025] Figure 2 This is a cross-sectional schematic diagram of the overall structure of the present invention;

[0026] Figure 3 This is a schematic diagram of the second structure of the oil circuit of the present invention;

[0027] Figure 4 This is a schematic diagram of the oil circuit structure of the present invention;

[0028] Figure 5 This is a logic block diagram of the oil return detection method of the present invention;

[0029] In the diagram: 1. Main body; 2. Oil storage chamber; 3. Heat dissipation chamber; 4. Oil filling hole; 5. Siphon pipe; 6. Solenoid valve; 7. Oil pump; 8. Radiator; 9. Copper pipe; 10. Heat dissipation fins; 11. Fan unit; 12. First filter; 13. Primary filter; 14. Secondary filter; 15. Oil quality sensor; 16. Vortex separator; 17. Heat dissipation hole. Detailed Implementation

[0030] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0031] Please see Figures 1-5 The present invention provides a technical solution: an intelligent temperature-controlled self-lubricating reducer, comprising a multi-stage planetary gear reducer body 1, an oil storage chamber 2 on the top of the body 1, a heat dissipation chamber 3 on the left side of the body 1, and a working chamber in the middle of the body 1. The working chamber is provided with a multi-stage planetary gear reducer module. The multi-stage planetary gear reducer module is existing technology. The multi-stage planetary gear reducer module is connected to the input shaft and output shaft of the body 1. The input shaft of the body 1 is transmitted to the output shaft of the body 1 through the multi-stage planetary gear reducer module, and the output shaft performs the output operation.

[0032] The top of the oil storage chamber 2 is provided with an oil filling hole 4 with a sealing cap. The oil filling hole 4 is connected to the oil storage chamber 2, and lubricating oil is injected into the oil storage chamber 2 through the oil filling hole 4. An overflow sensor is also installed on the top of the oil storage chamber 2, and the overflow sensor signal is connected to a processor.

[0033] A heat insulation plate is installed between the heat dissipation chamber 3 and the working chamber. The heat insulation plate thermally isolates the heat dissipation chamber 3 and the working chamber to prevent the heat generated in the working chamber from being transferred to the heat dissipation chamber 3 and affecting the heat dissipation effect of the heat dissipation chamber 3.

[0034] Two oil inlet passages and one oil return passage are provided between the oil storage chamber 2 and the working chamber to realize the closed-loop circulation of lubricating oil between the oil storage chamber 2 and the working chamber.

[0035] Among them, there are two oil inlet paths, including oil inlet path one and oil inlet path two; oil inlet path one includes several straight siphon pipes 5, which are set between the oil storage chamber 2 and the working chamber and connect the oil storage chamber 2 and the working chamber; the siphon pipe 5 has a U-shaped structure and can realize non-powered fluid transportation by using liquid level difference and atmospheric pressure, and is used for lubricating oil transportation from the oil storage chamber 2 to the inner cavity of the body 1.

[0036] The siphon tube 5 is installed upside down, and a solenoid valve 6 is installed at the top bend of the siphon tube 5. The solenoid valve 6 is used to control the on and off of the delivery of lubricating oil by the siphon tube 5.

[0037] The second oil inlet circuit includes an oil pump 7, a radiator 8, and pipes connected to both. The oil pump 7 and the radiator 8 are both located in the heat dissipation chamber 3. The input end of the oil pump 7 is connected to the oil storage chamber 2 through a pipe, and the output end of the oil pump 7 is connected to the input end of the radiator 8 through a pipe. The output end of the radiator 8 is connected to the working chamber through a pipe.

[0038] The radiator 8 includes a copper pipe 9. The input end of the oil pump 7 is connected to the input end of the copper pipe 9, and the output end of the copper pipe 9 is connected to the working chamber.

[0039] The copper tube 9 is nested with several upper heat dissipation fins 10, which are made of aluminum, thereby increasing the heat dissipation area of ​​the copper tube 9.

[0040] A fan unit 12 is provided on one side of the radiator 8. The fan unit 12 is embedded in the wall of the heat dissipation chamber 3. The fan unit is a conventional technology. The fan unit 12 provides air cooling for the radiator 8, thereby improving the heat dissipation effect.

[0041] Several heat dissipation holes 17 are started on the walls of the heat dissipation chambers 3 on both sides adjacent to the wall of the fan unit 11. The heat dissipation holes 17 are arranged in an array to cooperate with the fan unit 11 to allow air to circulate in the heat dissipation chamber 3.

[0042] A filter screen (not shown in the figure) is fixedly connected to one side of the outer wall of the heat dissipation chamber 3 corresponding to the fan unit 11 and the heat dissipation hole 17. This filter screen is used to intercept dust in the outside air and reduce the amount of dust entering the heat dissipation chamber 3, which would affect the heat dissipation effect on the lubricating oil.

[0043] A first filter 12 is embedded at the inlet of the siphon tube 5 connected to the oil storage chamber 2. The first filter 12 is a basket filter used to intercept large-diameter particles (diameter greater than 80 micrometers) in the lubricating oil to prevent the siphon tube 5 from becoming clogged.

[0044] The first filter 12 is installed at an angle of 45° and is located below the level of the lubricating oil in the oil storage chamber 2, so as to perform self-cleaning by gravity.

[0045] A primary filter 13 is fixedly connected to the pipe on one side of the input end of the oil pump 7, and a secondary filter 14 is installed on the pipe connecting the oil pump 7 to the radiator 8.

[0046] The primary filter 13 is a cyclone filter used to filter metal particles larger than 50 microns, thereby protecting the impeller of the oil pump 7.

[0047] The secondary filter 14 uses a glass fiber filter element to filter metal particles larger than 10 microns; the first filter 12, the primary filter 13 and the secondary filter 14 are all equipped with drain valves at the bottom, which can support slag discharge without stopping the machine.

[0048] A temperature sensor is installed inside the working chamber. The temperature sensor is a PT100 platinum resistance contact sensor, which is used to monitor the oil temperature change of the lubricating oil in the working chamber in real time. The temperature sensor is connected to the processor signal.

[0049] When the lubricating oil temperature in the working chamber is below 60℃, oil inlet circuit one is activated; when the lubricating oil temperature in the working chamber is not below 60℃, oil inlet circuit two is activated.

[0050] A magnetostrictive level gauge is installed in the working chamber. The magnetostrictive level gauge is vertically installed in the working chamber to monitor the oil level of the lubricating oil in the working chamber in real time.

[0051] The oil return circuit includes an oil return pipe, which connects the working chamber and the oil storage chamber 2. An oil quality sensor 15 and a vortex separator 16 are sequentially arranged on the oil return pipe along the transmission direction of the lubricating oil. Both the oil quality sensor 15 and the vortex separator 16 are connected to the processor signal.

[0052] The oil quality sensor 15 is used to monitor the viscosity, acid value and water content of the lubricating oil, and is connected to a processor; the vortex separator 16 is used to centrifuge and filter the returned lubricating oil to remove metal particles present in the lubricating oil.

[0053] In this embodiment, during the initial oil filling, the sealing cap on the oil filling hole 4 is opened and oil is filled into the oil storage chamber 2 until the overflow sensor triggers an alarm, at which point the processor automatically shuts down the oil filling equipment.

[0054] The lubricating oil is automatically filled into the oil tank of the main body 1 through the siphon pipe 5, and the liquid level is monitored by the magnetostrictive level gauge.

[0055] The processor presets the normal liquid level value in the inner cavity of body 1, denoted as Y1; and the liquid level warning value, denoted as Y2.

[0056] When the lubricating oil temperature in the working chamber is not greater than 60°, and the magnetostrictive level gauge detects that the lubricating oil level is within ±1mm of Y2, oil is added to the working chamber through the oil circuit until the level returns to the normal value Y1.

[0057] When the lubricating oil temperature in the working chamber exceeds 60°C, oil is replenished through oil circuit two to restore the lubricating oil level in the working chamber to the normal value Y1.

[0058] During operation, when the temperature sensor detects that the lubricating oil temperature in the inner cavity of the main body 1 is >60°, oil circuit one is closed and oil circuit two is activated: oil pump 7 is started to change the oil delivery path for lubricating oil. At the same time, the fan unit 11 automatically adjusts the airflow according to the oil temperature value detected by the temperature sensor and blows air onto the radiator 8 for air cooling, thereby maintaining the cooling efficiency of the lubricating oil.

[0059] During the process of lubricating oil being transported from the inner cavity of the main body 1 back to the oil storage chamber 2 through the return oil pipe, the viscosity of the lubricating oil is monitored by the oil quality sensor 15 to see if any abnormality occurs.

[0060] The processor presets a warning value for the lubricating oil viscosity, denoted as N1; the measured actual viscosity value of the lubricating oil is denoted as N2. When N2 < N1, the lubricating oil viscosity is determined to be normal; when N2 ≥ N1, the lubricating oil viscosity is determined to be abnormal.

[0061] When an abnormality is detected in the lubricating oil, the vortex separator 16 is activated to purify the lubricating oil; if no viscosity abnormality is detected, the acidity of the lubricating oil is further monitored to see if it exceeds the standard.

[0062] The processor presets a warning value for the acid value of the lubricating oil, which is recorded as D1; ​​the actual acid value of the lubricating oil is measured and recorded as D2. When D2≤D1, the acid value of the lubricating oil is determined to be within the standard; when D2>D1, the acid value of the lubricating oil is determined to be within the standard.

[0063] If the level exceeds the limit, an oil change alarm will be triggered; if the level does not exceed the limit, further testing will be conducted to determine if the water content in the lubricating oil is too high.

[0064] The processor presets a warning value for the water content of the lubricating oil, denoted as H1; the measured actual water content of the lubricating oil is denoted as H2. When H2≤H1, the water content of the lubricating oil is determined to be within the standard; when H2>H1, the water content of the lubricating oil is determined to be within the standard.

[0065] If the water level exceeds the limit, centrifugal dewatering is performed using vortex separator 16; if the water level does not exceed the limit, normal operation is maintained.

[0066] The method of using an intelligent temperature-controlled self-lubricating speed reducer is as follows:

[0067] S1: When N2 < N1, the lubricating oil viscosity is determined to be normal; when N2 ≥ N1, the lubricating oil viscosity is determined to be abnormal. The vortex separator 16 is started to purify the lubricating oil and then re-monitor until N2 < N1.

[0068] S2: After S1 is detected normally, if D2≤D1, it is determined that the acid value of the lubricating oil is not excessive; if D2>D1, it is determined that the acid value of the lubricating oil is excessive, triggering an oil change alarm.

[0069] S3: After S2 is detected normally, if H2≤H1, it is determined that the water content of the lubricating oil is not excessive; if H2>H1, it is determined that the water content of the lubricating oil is excessive, and centrifugal dehydration is performed through vortex separator 16 until H2≤H1.

[0070] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0071] Finally, it should be noted that the above descriptions are merely preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. An intelligent temperature-controlled self-lubricating speed reducer, comprising a speed reducer body (1), characterized in that: The main body (1) is provided with an oil storage chamber (2) at the top, a heat dissipation chamber (3) on the left side of the main body (1), a working chamber in the middle of the main body (1), a multi-stage planetary gear reduction module in the working chamber, an oil filling hole (4) with a sealing cap and an overflow sensor at the top of the oil storage chamber (2), two parallel oil inlet paths and one oil return path between the oil storage chamber (2) and the working chamber, a temperature sensor and a magnetostrictive level gauge in the working chamber, an oil quality sensor (15) and a vortex separator (16) in the oil return path, and the overflow sensor, temperature sensor, magnetostrictive level gauge, oil quality sensor (15) and vortex separator (16) are all connected to a processor. The two oil inlet paths are switched to supply oil based on the lubricating oil temperature in the working chamber monitored by the temperature sensor.

2. The intelligent temperature-controlled self-lubricating reducer according to claim 1, characterized in that: The two oil inlet paths include oil inlet path one and oil inlet path two. Oil inlet path one includes several straight siphon tubes (5). Each siphon tube (5) is an inverted U-shaped structure and a solenoid valve (6) is provided at the top bend. The siphon tube (5) connects the oil storage chamber (2) and the working chamber. A first filter (12) is installed at an angle at the inlet of the oil storage chamber (2) of the siphon tube (5).

3. The intelligent temperature-controlled self-lubricating reducer according to claim 2, characterized in that: The second oil inlet includes an oil pump (7) and a radiator (8) connected in sequence. The oil pump (7) and the radiator (8) are located in the heat dissipation chamber (3). The input end of the oil pump (7) is connected to the oil storage chamber (2) through a pipe. The output end of the oil pump (7) is connected to the input end of the radiator (8). The output end of the radiator (8) is connected to the working chamber. The radiator (8) includes a copper tube (9) with heat dissipation fins (10).

4. The intelligent temperature-controlled self-lubricating reducer according to claim 3, characterized in that: The oil pump (7) is equipped with a primary filter (13) on the input pipe and a secondary filter (14) on the output pipe of the oil pump (7) to the radiator (8). The primary filter (13) is a cyclone filter and the secondary filter (14) is a glass fiber filter.

5. The intelligent temperature-controlled self-lubricating reducer according to claim 4, characterized in that: The first filter (12), the primary filter (13) and the secondary filter (14) are all equipped with drain valves at the bottom.

6. The intelligent temperature-controlled self-lubricating reducer according to claim 5, characterized in that: The return oil path includes a return oil pipe connecting the working chamber and the oil storage chamber (2). The oil quality sensor (15) and the vortex separator (16) are connected sequentially on the return oil pipe along the lubricating oil flow direction. The oil quality sensor (15) is used to detect the viscosity, acid value and water content of the lubricating oil.

7. The intelligent temperature-controlled self-lubricating reducer according to claim 6, characterized in that: The heat dissipation chamber (3) is equipped with a fan unit (11) that supplies air to the radiator (8). Several heat dissipation holes (17) are generated on both sides of the heat dissipation chamber (3) adjacent to the fan unit (11). The several heat dissipation holes (17) are arranged in an array. A heat insulation plate is provided between the heat dissipation chamber (3) and the working chamber.

8. The intelligent temperature-controlled self-lubricating reducer according to claim 1, characterized in that: The processor is preset with a normal liquid level value Y1 and a liquid level warning value Y2 for the working chamber. When the oil temperature is ≤60℃ and the liquid level is Y2±1mm, the first oil inlet is activated to replenish oil to the liquid level Y1. When the oil temperature is >60℃, the second oil inlet is activated to replenish oil to the liquid level Y1.

9. A method of using an intelligent temperature-controlled self-lubricating reducer, applicable to the intelligent temperature-controlled self-lubricating reducer according to any one of claims 1-8, characterized in that: The processor is preset with viscosity warning value N1, actual viscosity value N2, acid value warning value D1, actual acid value D2, water content warning value H1, and actual water content value H2. The processor detects and processes the lubricating oil in the return oil circuit according to the judgment order of actual viscosity value N2, actual acid value D2, and actual water content value H2. The method includes S1: when N2 < N1, the viscosity of the lubricating oil is determined to be normal; when N2 ≥ N1, the viscosity of the lubricating oil is determined to be abnormal, the vortex separator (16) is started to purify the lubricating oil and then re-monitor until N2 < N1. S2: After S1 is detected as normal, if D2≤D1, the acid value of the lubricating oil is determined to be within the standard; if D2>D1, the acid value of the lubricating oil is determined to be within the standard, triggering an oil change alarm. S3: After S2 is detected normally, if H2≤H1, it is determined that the water content of the lubricating oil is not excessive; if H2>H1, it is determined that the water content of the lubricating oil is excessive, and centrifugation is performed through the vortex separator (16) to remove water until H2≤H1.

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