Reduction gearbox lubricating oil circuit detection device

Abstract

The utility model provides a reduction gearbox lubricating oil circuit detection device, which belongs to the technical field of reduction gearboxes and comprises a reduction gearbox body, a lubricating oil pump is communicated on the reduction gearbox body through an oil pipe, an outlet end of the lubricating oil pump is communicated with the reduction gearbox body through an oil pipe, and a low liquid level detection switch is arranged on the reduction gearbox body. And a liquid level observation window is arranged on the side wall of the reduction gearbox body. According to the utility model, the low liquid level detection switch is arranged on the reduction gearbox body, so that the liquid level of lubricating oil in the reduction gearbox can be detected in real time, and mechanical damages such as tooth surface abrasion and bearing damage caused by insufficient lubrication due to insufficient oil quantity are avoided; the liquid level observation window is arranged on the side wall of the reduction gearbox body, so that the current liquid level in the reduction gearbox can be better observed, and a worker can conveniently fill lubricating oil in time; and the low liquid level detection switch and the liquid level observation window are matched for use, so that normal operation of the reduction gearbox is further ensured, the service life of the reduction gearbox is prolonged, and the safety of the reduction gearbox during operation is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of reduction gear boxes, in particular to a reduction gear box lubricating oil circuit detection device. Background Art

[0002] With the rapid development of the automotive industry, the demand for tires is increasing. To meet this demand, tire companies are expanding their operations, with equipment running continuously in three shifts. Under these conditions, the bearings and gears of large gearboxes often suffer from inadequate lubrication, leading to tooth wear and bearing damage, seriously shortening the gearbox's service life. In severe cases, this can even cause equipment to shut down, necessitating inspection and repair. However, gearbox disassembly and repair is time-consuming, and experienced maintenance personnel are scarce. This creates a shortage of maintenance personnel, and prolonged downtime can impact a company's overall production.

[0003] The utility model patent with announcement number CN208089925U discloses a superfine vertical mill reducer protection system, which first extracts oil from the lower part of the reducer body through an oil pump, filters it through a filter, and then cools it through a cooler before entering the oil distributor, which distributes the oil to the various lubrication points on the reducer body. The pressure sensor, flow sensor and first temperature sensor set in front of the oil distributor can detect the pressure, flow and temperature of the lubricating oil in the oil pipe, solving the problem of damage to the reducer body due to poor lubrication and excessive vibration, reducing the downtime loss caused by failure of the reducer body, reducing maintenance costs and improving economic benefits. However, the above protection system does not have an oil quantity detection device. When the oil quantity in the reducer is insufficient, the reducer will still experience tooth surface wear, bearing damage, and even abnormal equipment shutdown due to inadequate lubrication. Therefore, it is necessary to design a reducer lubrication oil circuit detection device that can detect the oil quantity. Utility Model Content

[0004] The purpose of this application is to provide a reduction gearbox lubrication oil circuit detection device, aiming to solve the technical problems of existing reduction gearboxes such as tooth surface wear, bearing damage, and even abnormal equipment shutdown caused by insufficient lubrication.

[0005] An embodiment of the present application provides a gearbox lubricating oil circuit detection device, including a gearbox body, a lubricating oil pump connected to the gearbox body through an oil pipe, the outlet end of the lubricating oil pump is connected to the gearbox body through the oil pipe, a low liquid level detection switch is provided on the gearbox body, and a liquid level observation window is provided on the side wall of the gearbox body.

[0006] In one embodiment, a filter is provided on the reduction gearbox body, and an outlet end of the filter is connected to the lubricating oil pump through an oil pipe.

[0007] In one embodiment, a heat exchanger is connected between the outlet end of the lubricating oil pump and the reduction gearbox body through an oil pipe.

[0008] In one embodiment, cooling water is provided on the outside of the heat exchanger, the cooling water and the heat exchanger form a circulation passage, and a solenoid valve is provided at the outlet of the cooling water.

[0009] In one embodiment, an oil pressure gauge and an oil temperature gauge are sequentially connected between the outlet end of the heat exchanger and the reduction gearbox body through an oil pipe.

[0010] In one embodiment, a pressure sensor, a temperature sensor and a flow sensor are sequentially connected between the outlet end of the oil temperature gauge and the reduction gearbox body through an oil pipe.

[0011] In one embodiment, the outlet end of the flow sensor is divided into several branches through an oil pipe, and the outlet end of each branch is connected to the reduction gearbox body.

[0012] In one embodiment, each branch line is provided with an oil sight glass.

[0013] In one embodiment, the reduction gearbox body is provided with a plurality of input shafts and output shafts, and each of the input shafts and the output shafts is provided with a shaft end temperature sensor.

[0014] The utility model provides a reduction gearbox lubricating oil circuit detection device. Compared with the prior art, the utility model has the following advantages: by arranging a low liquid level detection switch on the reduction gearbox body, the liquid level of the lubricating oil in the reduction gearbox can be detected in real time; when the liquid level is lower than the low liquid level detection switch, the low liquid level detection switch outputs a low liquid level alarm signal, and the device stops after receiving the low liquid level alarm signal, and stops the rotation of the reduction gearbox and the input shaft, output shaft and other transmission components thereon. At this time, only lubricating oil needs to be added, and the device can be restarted after the lubricating oil level is higher than the low liquid level detection switch, thereby avoiding mechanical damage such as tooth surface wear and bearing damage caused by insufficient lubrication due to insufficient oil, extending the service life of transmission components such as reduction gears and bearings, reducing the workload of maintenance personnel in inspecting the reduction gearbox, and reducing maintenance costs; by arranging a liquid level observation window on the side wall of the reduction gearbox body, the current liquid level in the reduction gearbox can be better observed, which is convenient for staff to add lubricating oil in time and convenient for maintenance personnel to inspect; the low liquid level detection switch and the liquid level observation window are used in conjunction with each other to further ensure the normal operation of the reduction gearbox, extend the service life of the reduction gearbox, and improve the safety of the reduction gearbox during operation. The utility model has a simple structure and is easy to operate. It can detect the lubrication status of the reduction gearbox in real time. When the lubrication status is abnormal, it can promptly alarm and shut down the machine for maintenance, thereby extending the service life of the reduction gearbox, improving the safety of the reduction gearbox during operation, and has high practicality. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following briefly introduces the drawings required for use in the embodiments or descriptions of the prior art. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0016] Figure 1 This is a schematic structural diagram of a reduction gearbox lubrication oil circuit detection device provided in one embodiment of the present application;

[0017] Figure 2 for Figure 1 The enlarged structural diagram of the heat exchanger of the reduction gearbox lubricating oil circuit detection device is shown.

[0018] Explanation of symbols in the figure:

[0019] 1. Low liquid level detection switch; 2. Liquid level observation window; 3. Shaft end temperature sensor; 4. Gearbox body; 5. Oil sight glass; 6. Lubricating oil pump; 7. Heat exchanger; 8. Oil pressure gauge; 9. Oil temperature gauge; 10. Flow sensor; 11. Temperature sensor; 12. Pressure sensor; 13. Cooling water; 14. Solenoid valve; 15. Filter; 16. Oil pipe; 17. Branch line. DETAILED DESCRIPTION

[0020] In order to make the technical problems, technical solutions and beneficial effects to be solved by this application more clearly understood, this application is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain this application and are not intended to limit this application.

[0021] It should be noted that when an element is referred to as being "fixed" or "disposed" on another element, it can be directly on the other element or indirectly on the other element. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or indirectly connected to the other element.

[0022] It should be understood that the terms "length," "width," "up," "down," "front," "back," "left," "right," "vertical," "horizontal," "top," "bottom," "inside," "outside," and the like, indicating positions or relationships, are based on the positions or relationships shown in the accompanying drawings and are used solely for the purpose of facilitating and simplifying the description of this application. They should not be construed as indicating or implying that the devices or elements referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limiting this application. Furthermore, the terms "first," "second," "third," and the like are used solely for distinguishing descriptions and should not be construed as indicating or implying relative importance.

[0023] See also Figure 1 , is a schematic diagram of the structure of a reduction gearbox lubricating oil circuit detection device provided in one embodiment of the present application. For ease of explanation, only the parts related to this embodiment are shown, which are detailed as follows:

[0024] In one embodiment, a gearbox lubricating oil circuit detection device includes a gearbox body 4, which is connected to a lubricating oil pump 6 through an oil pipe 16. The outlet end of the lubricating oil pump 6 is connected to the gearbox body 4 through the oil pipe 16. A low liquid level detection switch 1 is provided on the gearbox body 4, and a liquid level observation window 2 is provided on the side wall of the gearbox body 4.

[0025] By arranging a low liquid level detection switch 1 on the reduction gear box body 4, the liquid level of the lubricating oil in the reduction gear box can be detected in real time. When the liquid level is lower than the low liquid level detection switch 1, the low liquid level detection switch 1 outputs a low liquid level alarm signal. The equipment stops after receiving the low liquid level alarm signal, and stops the reduction gear box and the input shaft, output shaft and other transmission components thereon from rotating. At this time, only lubricating oil needs to be added. After the lubricating oil level is higher than the low liquid level detection switch 1, it can be started again, avoiding mechanical damage such as tooth surface wear and bearing damage caused by insufficient lubrication due to insufficient oil, extending the service life of the reduction gear box gears and bearings and other transmission components, reducing the workload of maintenance personnel in inspecting the reduction gear box, and reducing maintenance costs.

[0026] By setting a liquid level observation window 2 on the side wall of the reduction gear box body 4, the current liquid level in the reduction gear box can be better observed, which is convenient for staff to add lubricating oil in time and convenient for maintenance personnel to check; the low liquid level detection switch 1 and the liquid level observation window 2 are used together to further ensure the normal operation of the reduction gear box, extend the service life of the reduction gear box, and improve the safety of the reduction gear box during operation.

[0027] For details, please refer to Figure 1 The gearbox body 4 is primarily used for transmission speed conversion and serves as an internal transmission shaft and lubricant storage device. It is equipped with several input and output shafts, which achieve transmission speed conversion through the input and output shafts. The lubricating oil pump 6 mainly transports lubricating oil to the various friction parts of the mechanical equipment to reduce friction between them, thereby reducing wear and extending the service life of the mechanical equipment.

[0028] In one embodiment, see Figure 1 The reduction gearbox body 4 is provided with a filter 15, and the outlet end of the filter 15 is connected to the lubricating oil pump 6 through an oil pipe 16. The filter 15 is mainly used to filter the lubricating oil and filter out impurities such as metal powder and particles generated by wear of mechanical components such as bearings and gears.

[0029] In one embodiment, see Figure 1 The outlet end of the lubricating oil pump 6 is connected to the reduction gear box body 4 through an oil pipe 16. The heat exchanger 7 is mainly used to transfer heat and reduce the oil temperature of the lubricating oil.

[0030] In one embodiment, see Figure 1-Figure 2 Cooling water 13 is provided outside the heat exchanger 7, forming a circulation path with the heat exchanger 7. A solenoid valve 14 is provided at the outlet of the cooling water 13. The heat exchanger 7 lowers the temperature of the lubricating oil by circulating the cooling water 13. The solenoid valve 14 is used to control the flow of the cooling water 13. When the lubricating oil temperature is high, the cooling water 13 is controlled by the solenoid valve 14 to enter the heat exchanger 7, achieving heat exchange and thus lowering the temperature of the lubricating oil.

[0031] In one embodiment, see Figure 1 An oil pressure gauge 8 and an oil temperature gauge 9 are connected in sequence between the outlet of the heat exchanger 7 and the gearbox body 4 via an oil pipe 16. The oil pressure gauge 8 measures the pressure of the lubricating oil and displays the pressure data in real time; the oil temperature gauge 9 measures the temperature of the lubricating oil and displays the temperature data in real time. The pressure and temperature data allow operators to determine the working condition of the lubricating oil circuit.

[0032] In one embodiment, see Figure 1 The outlet end of the oil temperature gauge 9 is connected to the reducer body 4 in sequence through the oil pipe 16 with a pressure sensor 12, a temperature sensor 11 and a flow sensor 10. The main function of the flow sensor 10 is to measure the flow of the lubricating oil in the lubricating oil circuit and transmit the flow data to the control system, thereby realizing automatic control such as automatic alarm and automatic shutdown. The main function of the temperature sensor 11 is to measure the temperature of the lubricating oil in the lubricating oil circuit and transmit the temperature data to the control system. When the temperature data is abnormal for a long time, the control system starts the solenoid valve 14 to control the cooling water 13 to enter the heat exchanger 7 to cool the lubricating oil, thereby realizing automatic control such as automatic alarm and automatic shutdown. The pressure sensor 12 is mainly used to measure the pressure of the lubricating oil in the lubricating oil circuit and transmit the pressure data to the control system, thereby realizing automatic control such as automatic alarm and automatic shutdown.

[0033] In one embodiment, see Figure 1 The outlet end of the flow sensor 10 is divided into several branches 17 through the oil pipe 16, and the outlet end of each branch 17 is connected to the reduction box body 4. Each branch 17 is connected to each friction part in the reduction box body 4.

[0034] In one embodiment, see Figure 1 Each branch 17 is provided with an oil sight glass 5 for observing the return oil quantity and oil quality in each branch 17 .

[0035] In one embodiment, see Figure 1 , shaft end temperature sensors 3 are provided on both the input shaft and the output shaft to detect the temperature of the transmission bearings and shaft ends of the reduction gearbox at all levels. When the temperature reaches the alarm temperature, the shaft end temperature sensor 3 outputs a temperature alarm signal. After receiving the temperature alarm signal, the equipment stops and stops the rotation of the reduction gearbox and the input shaft, output shaft and other transmission parts. At this time, the staff needs to check whether the temperature of the transmission bearings and shaft ends at all levels is abnormal. If abnormal, the equipment needs to be repaired.

[0036] In one embodiment, see Figure 1-Figure 2 The reduction gearbox lubricating oil circuit detection device also includes a control system, which is electrically connected to the low liquid level detection switch 1, the shaft end temperature sensor 3, the pressure sensor 12, the temperature sensor 11, the flow sensor 10, and the solenoid valve 14.

[0037] The following combination Figure 1-Figure 2 The working process of the reduction gearbox lubricating oil circuit detection device of the present application is described as follows:

[0038] Before the gearbox is started, the lubricating oil pump 6 operates first, pumping the lubricating oil from the gearbox body 4. The oil then filters through the filter 15 and enters the oil pipe 16. From there, the oil flows into the various branches 17 and is ultimately distributed to the various friction points within the gearbox body 4. This ensures that the lubricating oil fully lubricates the transmission gears, bearings, and other mechanical components within the gearbox body 4, effectively lubricating the friction points and preventing damage to the mechanical parts caused by insufficient lubrication before the gearbox is started. As the lubricating oil is distributed to the various friction points through the various branches 17, the oil sight glass 5 is used to monitor the return oil volume and oil quality within each branch 17. While the gearbox is operating, the lubricating oil pump 6 operates continuously, providing real-time lubrication to the various friction points within the gearbox body 4.

[0039] During the flow of lubricating oil, the pressure sensor 12, temperature sensor 11 and flow sensor 10 monitor the pressure, temperature and flow of the lubricating oil in real time and transmit them to the control system. When all three are in normal state, the input shaft and output shaft on the reduction gearbox body 4 can rotate; when the flow data and pressure data detected by the flow sensor 10 and the pressure sensor 12 are abnormal, the control system controls the equipment to shut down for maintenance and inspection, and realizes automatic control such as automatic alarm and automatic shutdown; when the temperature data detected by the temperature sensor 11 is abnormal for a long time, the control system starts the solenoid valve 14 to control the cooling water 13 to enter the heat exchanger 7 to cool the lubricating oil, and realizes automatic control such as automatic alarm and automatic shutdown.

[0040] During the operation of the reduction gearbox, the low liquid level detection switch 1 detects the level of the lubricating oil in the reduction gearbox in real time. When the level is lower than the low liquid level detection switch 1, the low liquid level detection switch 1 outputs a low liquid level alarm signal and transmits it to the control system. The control system controls the equipment to shut down and stops the reduction gearbox and its transmission components. At this time, only lubricating oil needs to be added. When the lubricating oil level is higher than the low liquid level detection switch 1, the machine can be restarted. In addition, the staff can also observe the current level of the lubricating oil in the reduction gearbox through the liquid level observation window 2, which facilitates timely addition of lubricating oil.

[0041] Similarly, during the operation of the reducer, the shaft end temperature sensor 3 detects the temperature of the transmission bearings and shaft ends of each level of the reducer in real time. When the temperature reaches the alarm temperature, the shaft end temperature sensor 3 outputs a temperature alarm signal and transmits it to the control system. The control system controls the equipment to shut down and stops the reducer and the transmission components thereon from rotating. At this time, the staff needs to check whether the temperature of the transmission bearings and shaft ends of each level is abnormal. If abnormal, the equipment needs to be repaired.

[0042] In summary, the present invention provides a reduction gearbox lubricating oil circuit detection device. By arranging a low liquid level detection switch on the reduction gearbox body, the liquid level of the lubricating oil in the reduction gearbox can be detected in real time. When the liquid level is lower than the low liquid level detection switch, the low liquid level detection switch outputs a low liquid level alarm signal. After receiving the low liquid level alarm signal, the device stops and stops the reduction gearbox and the input shaft, output shaft and other transmission components thereon from rotating. At this time, only lubricating oil needs to be added. After the lubricating oil level is higher than the low liquid level detection switch, it can be restarted, thereby avoiding mechanical damage such as tooth surface wear and bearing damage caused by insufficient lubrication due to insufficient oil, extending the service life of transmission components such as reduction gears and bearings, reducing the workload of maintenance personnel in inspecting the reduction gearbox, and reducing maintenance costs. By arranging a liquid level observation window on the side wall of the reduction gearbox body, the current liquid level in the reduction gearbox can be better observed, which is convenient for staff to add lubricating oil in time and convenient for maintenance personnel to inspect. The low liquid level detection switch and the liquid level observation window are used in conjunction with each other to further ensure the normal operation of the reduction gearbox, extend the service life of the reduction gearbox, and improve the safety of the reduction gearbox during operation. The utility model has a simple structure and is easy to operate. It can detect the lubrication status of the reduction gear box in real time. When the lubrication status is abnormal, it can promptly alarm and shut down for maintenance, thereby extending the service life of the reduction gear box and improving the safety of the reduction gear box during operation. It is highly practical and can be widely used in the field of reduction gear box technology.

[0043] The above-described embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them. Although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. These modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the various embodiments of the present application, and should all be included in the scope of protection of the present application.

Claims

1. A reduction gearbox lubricating oil circuit detection device, comprising a reduction gearbox body (4), wherein the reduction gearbox body (4) is connected to a lubricating oil pump (6) via an oil pipe (16), and an outlet end of the lubricating oil pump (6) is connected to the reduction gearbox body (4) via the oil pipe (16), characterized in that: A low liquid level detection switch (1) is provided on the reduction box body (4), and a liquid level observation window (2) is provided on the side wall of the reduction box body (4).

2. The reduction gearbox lubricating oil circuit detection device according to claim 1, characterized in that: The reduction box body (4) is provided with a filter (15), and the outlet end of the filter (15) is connected to the lubricating oil pump (6) through an oil pipe (16).

3. The reduction gearbox lubricating oil circuit detection device according to claim 1, characterized in that: A heat exchanger (7) is connected between the outlet end of the lubricating oil pump (6) and the reduction box body (4) via an oil pipe (16).

4. The reduction gearbox lubricating oil circuit detection device according to claim 3, characterized in that: Cooling water (13) is provided on the outside of the heat exchanger (7), the cooling water (13) and the heat exchanger (7) form a circulation passage, and a solenoid valve (14) is provided at the outlet end of the cooling water (13).

5. The reduction gearbox lubricating oil circuit detection device according to claim 3, characterized in that: An oil pressure gauge (8) and an oil temperature gauge (9) are sequentially connected between the outlet end of the heat exchanger (7) and the reduction box body (4) via an oil pipe (16).

6. The reduction gearbox lubricating oil circuit detection device according to claim 5, characterized in that: A pressure sensor (12), a temperature sensor (11) and a flow sensor (10) are sequentially connected between the outlet end of the oil temperature gauge (9) and the reduction box body (4) via an oil pipe (16).

7. The reduction gearbox lubricating oil circuit detection device according to claim 6, characterized in that: The outlet end of the flow sensor (10) is divided into a plurality of branches (17) through an oil pipe (16), and the outlet end of each branch (17) is communicated with the reduction box body (4).

8. The reduction gearbox lubricating oil circuit detection device according to claim 7, characterized in that: Each branch (17) is provided with an oil sight glass (5).

9. The reduction gearbox lubricating oil circuit detection device according to claim 1, characterized in that: The reduction box body (4) is provided with a plurality of input shafts and output shafts, and the input shafts and the output shafts are both provided with shaft end temperature sensors (3).

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