Gearbox lubricating oil circulation equipment and gearbox testing system

Abstract

This invention provides a gear reducer lubricating oil circulation device and a gear reducer testing system, relating to the field of gear reducer technology. The gear reducer lubricating oil circulation device includes: a first oil storage chamber for storing lubricating oil discharged from the gear reducer; an oil conveying device for extracting lubricating oil from the first oil storage chamber; a cooling device for cooling the lubricating oil extracted from the first oil storage chamber; a second oil storage chamber for storing cooled lubricating oil; and an oil delivery device for extracting lubricating oil from the second oil storage chamber. The gear reducer lubricating oil circulation device not only cools and dissipates heat from the gears inside the gear reducer but also enables the recycling of lubricating oil.

Description

Technical Field

[0001] This invention relates to the field of speed reducer technology, and more particularly to speed reducer lubricating oil circulation equipment and speed reducer testing system. Background Technology

[0002] Rotary speed reducers are widely used in construction machinery such as excavators, rotary drilling rigs, and cranes. Rotary speed reducers can withstand radial loads and are a key component for enabling the rotational movement of construction machinery.

[0003] Before leaving the factory, rotary speed reducers need to undergo a load test using a speed reducer testing system. During the load test, as the test progresses, the gears inside the speed reducer will generate a large amount of heat. If the gear temperature is too high, the performance of the speed reducer will be affected, and the test results may be inaccurate.

[0004] However, the existing speed reducer testing system does not have a cooling function and cannot cool the gears inside the speed reducer. Summary of the Invention

[0005] The purpose of this invention is to overcome the defects of the prior art and to provide a speed reducer lubricating oil circulation device and a speed reducer testing system, so as to solve the problem that the speed reducer testing system in the prior art cannot cool down the internal gears of the speed reducer.

[0006] To solve the above problems, the present invention provides: a gearbox lubricating oil circulation device, comprising:

[0007] The first oil reservoir is used to store the lubricating oil discharged from the reducer;

[0008] An oil delivery device is used to extract lubricating oil from the first oil storage chamber;

[0009] A cooling device is used to cool the lubricating oil drawn from the first oil storage chamber;

[0010] The second oil reservoir is used to store cooled lubricating oil.

[0011] An oil delivery device is used to extract lubricating oil from the second oil storage chamber.

[0012] As a further improvement to the above technical solution, a first liquid level detection module for detecting the liquid level is provided in the first oil storage chamber; wherein,

[0013] When the liquid level in the first oil storage chamber exceeds a first preset value, the oil delivery device is activated;

[0014] When the liquid level in the first oil storage chamber is lower than the first preset value, the oil delivery device stops.

[0015] As a further improvement to the above technical solution, a second liquid level detection module for detecting the liquid level is provided in the second oil storage chamber; wherein,

[0016] When the liquid level in the second oil storage chamber exceeds the second preset upper limit value, the lubricating oil drawn by the oil delivery device is delivered to the first oil storage chamber.

[0017] When the liquid level in the second oil storage chamber is lower than the second preset lower limit, the oil delivery device stops.

[0018] When the liquid level in the second oil storage chamber is between the second preset upper limit value and the second preset lower limit value, the lubricating oil drawn by the oil delivery device is delivered to the reducer.

[0019] As a further improvement to the above technical solution, the oil outlet end of the oil delivery device is provided with a reversing valve, wherein the reversing valve includes an inlet, a first outlet, and a second outlet.

[0020] The liquid inlet is connected to the second oil storage chamber, the first liquid outlet is connected to the first oil storage chamber, and the second liquid outlet is connected to the oil inlet port of the reducer.

[0021] As a further improvement to the above technical solution, both the first oil storage chamber and the second oil storage chamber are equipped with a temperature measurement module for measuring oil temperature; wherein,

[0022] The operating status of the cooling device is adjusted according to the oil temperature in the first oil storage chamber;

[0023] The operating status of the oil delivery device is adjusted according to the oil temperature in the second oil storage chamber.

[0024] As a further improvement to the above technical solution, when the oil temperature in the first oil storage chamber exceeds the first set temperature value, the oil delivery device is controlled to increase its operating power.

[0025] When the oil temperature in the second oil storage chamber exceeds the second set temperature value, the cooling device is controlled to increase its operating power.

[0026] As a further improvement to the above technical solution, the cooling device includes an air cooler or a water cooler.

[0027] As a further improvement to the above technical solution, both the first oil storage chamber and the second oil storage chamber are equipped with a filter device, which is used to filter impurities in the oil.

[0028] As a further improvement to the above technical solution, the filtration device includes an oil filter.

[0029] The present invention also provides: a speed reducer testing system, including the speed reducer lubricating oil circulation device as described above.

[0030] The beneficial effects of the present invention are as follows: The present invention proposes a speed reducer lubricating oil circulation device, which includes a first oil storage chamber, an oil conveying device, a cooling device, a second oil storage chamber, and an oil delivery device.

[0031] During the load test of the speed reducer, the heated lubricating oil inside the speed reducer can be discharged into the first oil reservoir. The lubricating oil is then transported to a cooling device for cooling using an oil delivery device. The cooled lubricating oil flows into the second oil reservoir and can then re-enter the speed reducer through the oil delivery device. When the cooled lubricating oil enters the speed reducer, the pressure causes the heated lubricating oil inside the speed reducer to be discharged back into the first oil reservoir, thus achieving lubricating oil circulation.

[0032] In addition to cooling the gears inside the speed reducer, the gearbox lubricating oil circulation equipment can also recycle the lubricating oil. Attached Figure Description

[0033] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of the present invention and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0034] Figure 1 A first shaftside view of a gear reducer lubricating oil circulation device is shown;

[0035] Figure 2 A second isometric view of a gearbox lubricating oil circulation device is shown;

[0036] Figure 3 A front view of a gear reducer lubricating oil circulation device is shown;

[0037] Figure 4 It shows Figure 3 Sectional view along the middle AA direction;

[0038] Figure 5 A top view of a gear reducer lubricating oil circulation device is shown;

[0039] Figure 6 A rear view of a gearbox lubricating oil circulation device is shown;

[0040] Figure 7 It shows Figure 3 Left view of the lubricating oil circulation equipment for the medium speed reducer;

[0041] Figure 8 It shows Figure 3 Right view of the lubricating oil circulation equipment for the medium speed reducer.

[0042] Explanation of key component symbols:

[0043] 1-First oil storage chamber; 2-Oil delivery device; 3-Cooling device; 4-Second oil storage chamber; 5-Oil delivery device; 6-Oil tank; 7-Baffle plate; 8-Base; 9-Inlet valve; 10-First outlet valve; 11-First liquid level and thermometer; 12-Pressure measurement component; 13-Air filter; 14-First liquid level detection module; 15-Second outlet valve; 16-Second liquid level and thermometer; 17-Second liquid level detection module; 18-Flow regulating device; 19-Reversing valve; 20-Check valve; 21-Pressure regulating valve; 22-High pressure ball valve; 23-First pressure measuring interface; 24-Power module; 25-First suction oil filter; 26-Return oil filter; 27-Second suction oil filter; 28-Second pressure measuring interface; 29-Magnet. Detailed Implementation

[0044] Embodiments of the present invention are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0045] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0046] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this invention, "a plurality of" means two or more, unless otherwise explicitly specified.

[0047] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0048] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "over," and "on top" of the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0049] Example 1

[0050] Please see Figure 1 , Figure 2 , Figure 3 and Figure 4 In this embodiment, a gearbox lubricating oil circulation device is proposed. For ease of description, the gearbox lubricating oil circulation device will be simply referred to as the circulation device below. It should be noted that the circulation device proposed in this embodiment is applicable to various types of gearboxes that require cooling during loading tests.

[0051] The circulation equipment includes:

[0052] The first oil storage chamber 1 is used to store the lubricating oil discharged from the reducer;

[0053] Oil delivery device 2 is used to extract lubricating oil from the first oil storage chamber 1;

[0054] Cooling device 3 is used to cool the lubricating oil drawn from the first oil storage chamber 1;

[0055] The second oil storage chamber 4 is used to store cooled lubricating oil;

[0056] The oil delivery device 5 is used to extract lubricating oil from the second oil storage chamber 4.

[0057] Furthermore, the circulation equipment also includes a control module, which can be a microprocessor or a single-chip microcomputer. The control module can control the corresponding electrical devices and electronic components. The oil conveying device 2, cooling device 3, and oil delivery device 5 can all be electrically connected to the control module.

[0058] In this embodiment, the first oil storage chamber 1 and the second oil storage chamber 4 can be disposed inside an oil tank 6. A partition 7 can be provided inside the oil tank 6, with the first oil storage chamber 1 and the second oil storage chamber 4 positioned on opposite sides of the partition 7. A base 8 can be provided below the oil tank 6, and the oil tank 6 is mounted on the base 8. Rollers can be provided on the base 8 to facilitate the handling and movement of the circulation equipment.

[0059] It should be noted that since the first oil storage chamber 1 and the second oil storage chamber 4 are located inside the oil tank 6, in this embodiment, the first oil storage chamber 1 and the second oil storage chamber 4 are not shown in any of the drawings except for the sectional view and the perspective view.

[0060] In this embodiment, the first oil storage chamber 1 is located inside the oil tank 6.

[0061] like Figure 1 and Figure 5 As shown, the oil tank 6 can be equipped with an inlet valve 9 and a first outlet valve 10. The inlet valve 9 is located in the upper half of the oil tank 6, and the first outlet valve 10 is located in the lower half of the oil tank 6. Both the inlet valve 9 and the first outlet valve 10 are connected to the first oil storage chamber 1. The inlet valve 9 can be connected to the oil outlet port of the reducer. When the inlet valve 9 is opened, the oil in the reducer can flow into the first oil storage chamber 1; when the first outlet valve 10 is opened, the oil in the first oil storage chamber 1 can be discharged.

[0062] The inlet valve 9 and the first outlet valve 10 can be valves with opening and closing functions, such as ball valves.

[0063] A first liquid level and temperature gauge 11 can be installed on the oil tank 6. The first liquid level and temperature gauge 11 is used to measure the liquid level and temperature in the first oil storage chamber 1. By installing the first hydraulic liquid temperature gauge, users can easily and intuitively observe the liquid level and temperature of the lubricating oil in the first oil storage chamber 1.

[0064] The oil tank 6 can also be equipped with a pressure detection module, which is used to detect the pressure in the first oil storage chamber 1.

[0065] During operation, the air pressure in the first oil storage chamber 1 changes as oil flows in and out. If the air pressure in the first oil storage chamber 1 is too high or too low, it will affect the flow of lubricating oil. Therefore, by installing an air pressure detection module, users can easily observe the air pressure in the first oil storage chamber 1. Once abnormal air pressure is detected, users can promptly adjust the operating status of the circulation equipment.

[0066] In this embodiment, the air pressure detection module can be a pressure sensor. To ensure the balance of air pressure inside the first oil storage chamber 1, an opening can be provided on the top of the oil tank 6, and the opening is connected to the first oil storage chamber 1.

[0067] An air filter 13 can be installed inside the opening to prevent dust and other particles from entering the first oil reservoir 1, thereby ensuring the cleanliness of the lubricating oil. The air filter 13 can be detachably connected to the opening, for example, by means of a threaded connection, which facilitates the maintenance, cleaning, and replacement of the air filter 13. Before the circulation device is operated, the air filter 13 can be removed to facilitate the pre-addition of a certain amount of lubricating oil into the first oil reservoir 1.

[0068] In other embodiments, the air pressure detection module may employ an air pressure sensor or the like. The air pressure sensor may be electrically connected to the control module, which may also be electrically connected to an alarm module, such as a sound alarm or / and a light alarm. When the detected air pressure is outside a preset range, the control module will control the alarm module to sound an alarm.

[0069] During operation of the circulation equipment, lubricating oil is input and output into and out of the first oil storage chamber 1, resulting in dynamic changes in the lubricating oil level within the chamber. If the liquid level in the first oil storage chamber 1 is too low, it may cause cavitation in the oil delivery device 2. Therefore, it is necessary to reasonably control the liquid level in the first oil storage chamber 1. In this article, "liquid level" refers to the level of the oil (lubricating oil).

[0070] In this embodiment, a first liquid level detection module 14 for detecting liquid level may be provided in the first oil storage chamber 1, and the first liquid level detection module 14 may be electrically connected to the control module. The first liquid level detection module 14 may be a liquid level sensor.

[0071] When the liquid level in the first oil storage chamber 1 exceeds the first preset value, the oil delivery device 2 starts; when the liquid level in the first oil storage chamber 1 falls below the first preset value, the oil delivery device 2 stops. The first preset value needs to be set reasonably according to actual conditions; generally, it should be sufficient to ensure that the oil delivery device 2 does not experience cavitation.

[0072] It should be noted that before the circulation device is operated, a certain amount of lubricating oil must be pre-stored in the first oil storage chamber 1 to ensure that the oil delivery device 2 can operate normally.

[0073] In this embodiment, the oil delivery device 2 may include an oil delivery pump, which can be connected to the first oil storage chamber 1 and the cooling device 3 via components such as flanges, pipe joints, and delivery pipes. The oil delivery pump can be mounted on the base 8.

[0074] It should be noted that the lubricating oil in the cooling device 3 also flows into the second oil storage chamber 4 through the power provided by the oil delivery device 2. This means that the oil delivery device 2 provides the power to make the lubricating oil in the first oil storage chamber 1 flow into the cooling device 3 and the second oil storage chamber 4.

[0075] After the oil delivery device 2 is started, the lubricating oil in the first oil storage chamber 1 will be pumped to the cooling device 3 for cooling.

[0076] In this embodiment, the cooling device 3 may be an air cooler or a water cooler, etc. The cooling device 3 may include a heat exchange tube, wherein the inlet of the heat exchange tube is connected to the first oil storage chamber 1, and the outlet of the heat exchange tube is connected to the second oil storage chamber 4.

[0077] After being cooled by the cooling device 3, the lubricating oil flows from the outlet of the heat exchange tube into the second oil storage chamber 4.

[0078] In this embodiment, the second oil storage chamber 4 is located inside the oil tank 6.

[0079] like Figure 2 and Figure 5 As shown, a second oil outlet valve 15 may be installed on the oil tank 6. The second oil outlet valve 15 is located in the lower half of the oil tank 6 and is connected to the second oil storage chamber 4. Opening the second oil outlet valve 15 allows the oil in the second oil storage chamber 4 to be discharged.

[0080] The second oil outlet valve 15 can be a ball valve or other valve with opening and closing functions.

[0081] like Figure 1 As shown, a second liquid level and temperature gauge 16 can be installed on the oil tank 6. The second liquid level and temperature gauge 16 is used to measure the liquid level and temperature in the second oil storage chamber 4. By installing the second hydraulic temperature gauge, users can easily and intuitively observe the liquid level and temperature of the lubricating oil in the second oil storage chamber 4.

[0082] When assembling the circulating equipment and the reducer, the oil outlet end of the oil outlet device can be directly connected to the oil inlet port of the reducer. In this way, the lubricating oil drawn by the oil outlet device can flow directly into the reducer, thereby achieving cooling of the reducer and circulation of lubricating oil.

[0083] During the operation of the circulation equipment, there is both input and output of lubricating oil in the second oil storage chamber 4, which causes the lubricating oil in the second oil storage chamber 4 to be in a dynamic state. If the oil outlet end of the oil outlet device is directly connected to the oil inlet port of the reducer, the following problems may occur during the oil extraction process:

[0084] If the liquid level in the second oil reservoir 4 is too high, the lubricating oil in the second oil reservoir 4 may flow back into the cooling device 3; if the liquid level in the second oil reservoir 4 is too low, the oil delivery device 5 may experience cavitation. Therefore, it is necessary to properly control the liquid level in the second oil reservoir 4.

[0085] Therefore, it is necessary to monitor and control the liquid level in the second oil storage chamber 4 in real time.

[0086] In this embodiment, a second liquid level detection module 17 for detecting the liquid level may be provided in the second oil storage chamber 4. The second liquid level detection module 17 may be electrically connected to the control module. The second liquid level detection module 17 may be a liquid level sensor.

[0087] In this embodiment, the second liquid level detection module 17 can be detachably connected to the oil tank 6, for example, the two can be connected by a threaded connection. Before the circulation device is operated, the second liquid level detection module 17 can be removed, thereby facilitating the pre-addition of a certain amount of lubricating oil into the second oil storage chamber 4. Afterwards, the second liquid level detection module 17 needs to be reinstalled on the oil tank 6.

[0088] During operation, the circulation equipment detects the liquid level in the second oil storage chamber 4 through the second liquid level detection module 17. When the liquid level in the second oil storage chamber 4 exceeds the second preset upper limit, the lubricating oil drawn from the second oil storage chamber 4 by the oil delivery device 5 is delivered to the first oil storage chamber 1; when the liquid level in the second oil storage chamber 4 is lower than the second preset lower limit, the oil delivery device 5 stops; when the liquid level in the second oil storage chamber 4 is between the second preset upper limit and the second preset lower limit, the lubricating oil drawn from the second oil storage chamber 4 by the oil delivery device 5 is delivered to the reducer.

[0089] The second preset upper limit value is greater than the second preset lower limit value. Both the second preset upper limit value and the second preset lower limit value need to be set reasonably according to the actual situation. Generally, it is sufficient to ensure that the lubricating oil does not flow back to the cooling device 3 and that the oil delivery device 5 does not experience cavitation.

[0090] It should be noted that before the circulation device is operated, a certain amount of lubricating oil must be pre-stored in the second oil storage chamber 4 to ensure the normal operation of the oil delivery device 5.

[0091] To allow lubricating oil in the second oil storage chamber 4 to flow into the first oil storage chamber 1 or the reducer, a fluid flow regulating device 18 can be installed on the circulation equipment. The fluid flow regulating device 18 can be located at the oil outlet of the oil delivery device 5. The fluid flow regulating device 18 can be connected to the oil outlet of the oil delivery device 5 via components such as an oil pipe.

[0092] In this embodiment, the fluid flow regulating device 18 can control the flow direction of the lubricating oil.

[0093] The fluid flow regulating device 18 may include a reversing valve 19, wherein the reversing valve 19 may be an electromagnetic reversing valve, and the electromagnetic reversing valve may be electrically connected to the control module.

[0094] The reversing valve 19 includes an inlet, a first outlet, and a second outlet. The inlet is connected to the second oil storage chamber 4, the first outlet is connected to the first oil storage chamber 1, and the second outlet is connected to the oil inlet port of the reducer.

[0095] When the liquid level in the second oil storage chamber 4 exceeds the second preset upper limit value, the inlet of the reversing valve 19 is connected to the first outlet, thereby causing the oil delivery device 5 to deliver lubricating oil to the first oil storage chamber 1; when the liquid level in the second oil storage chamber 4 is between the second preset upper limit value and the second preset lower limit value, the inlet of the reversing valve 19 is connected to the second outlet, thereby causing the oil delivery device 5 to deliver lubricating oil to the reducer.

[0096] In this embodiment, the fluid flow regulating device 18 may further include a one-way valve 20, a pressure regulating valve 21, and a high-pressure ball valve 22.

[0097] One-way valve 20 is connected to the inlet of directional valve 19 to prevent oil backflow; pressure regulating valve 21 is connected to directional valve 19 to regulate the pressure of the oil output from directional valve 19; high-pressure ball valve 22 is connected to the second outlet to open or close the oil circuit between directional valve 19 and reducer.

[0098] Furthermore, a first pressure measuring interface 23 may be provided on the pressure regulating valve 21.

[0099] To allow users to quickly and intuitively understand the oil pressure value inside the pressure regulating valve 21, a pressure measuring component 12 can be installed on the oil tank 6. This pressure measuring component 12 includes a first pressure gauge. A first pressure measuring port 23 is connected to the first pressure gauge via a pressure measuring cable. When the equipment is in operation, the oil pressure at the first pressure measuring port 23 is transmitted to the first pressure gauge via the pressure measuring cable, thus allowing users to easily obtain the oil pressure value inside the pressure regulating valve 21.

[0100] In addition, a first hydraulic sensor may be installed on the pressure regulating valve 21. Both the first hydraulic sensor and the pressure regulating valve 21 can be electrically connected to the control module. When the pressure value measured by the first hydraulic sensor deviates from the set oil pressure value, the control module can control the pressure regulating valve 21 to restore the output oil pressure to the set oil pressure value. The set oil pressure value can be a point value or a range value.

[0101] Because it is equipped with a pressure regulating valve 21 and a first pressure measuring interface 23, the fluid flow regulating device 18 also has the function of regulating and controlling the output oil pressure.

[0102] In this embodiment, the components of the fluid flow regulating device 18 can be integrated on a mounting base, which can be fixed to the top surface of the oil tank 6 by means of bolts or the like.

[0103] The flow and circulation of lubricating oil inside the reducer need to be achieved through the oil delivery device 5.

[0104] In this embodiment, the oil delivery device 5 may include an oil delivery pump. The oil inlet and outlet of the oil delivery pump can be connected to corresponding structures and devices through components such as oil delivery pipes, pipe joints, and flanges. The oil inlet of the oil delivery pump is connected to the second oil storage chamber 4, and the oil outlet of the oil delivery pump is connected to the one-way valve 20.

[0105] The type of oil pump can be selected as needed. In this embodiment, a screw pump can be used.

[0106] In order to control the amount of oil delivered by the oil delivery device 5, the oil delivery pump can be controlled by a variable frequency motor.

[0107] like Figure 6 As shown, a power module 24 can be installed on the base 8. The power module 24 can supply power to electrical appliances including the oil conveying device 2, the cooling device 3, and the oil delivery device 5.

[0108] In this embodiment, the power supply module 24 may include an electrical control box, a frequency converter, and a control panel, etc. The frequency converter controls the speed of the variable frequency motor by changing the frequency and amplitude of the power supply, thereby achieving the purpose of regulating flow rate, etc. The frequency converter may be electrically connected to the control module.

[0109] In addition to the oil delivery device 5, the oil conveying device 2 and the cooling device 3 can also use variable frequency motors as power sources. It should be noted that the oil delivery device 5, the oil conveying device 2, and the cooling device 3 each have an independent variable frequency motor.

[0110] In this embodiment, in order to detect and adjust the cooling effect of the circulation device on the reducer, a temperature measurement module can be installed in both the first oil storage chamber 1 and the second oil storage chamber 4 to measure the oil temperature inside each chamber. The temperature measurement module can be a temperature sensor, which can be electrically connected to the control module.

[0111] Because it is equipped with a temperature measurement module, the circulation equipment can adjust the operating status of the cooling device 3 according to the oil temperature in the first oil storage chamber 1, and adjust the operating status of the oil delivery device 5 according to the oil temperature in the second oil storage chamber 4.

[0112] The oil temperature in the first oil reservoir 1 is positively correlated with the oil temperature in the reducer. When the oil temperature in the first oil reservoir 1 exceeds the first set temperature value, it indicates that the temperature inside the reducer is too high. At this time, the oil supply device 5 can be controlled by the control module to increase its operating power to increase the output oil volume. When the oil temperature in the second oil reservoir 4 exceeds the second set temperature value, it indicates that the cooling effect is not good. At this time, the cooling device 3 can be controlled by the control module to increase its operating power to improve the cooling effect.

[0113] When the oil temperature in the first oil storage chamber 1 is below the first set temperature value, the operating power of the oil delivery device 2 can be reduced, thereby reducing the consumption of electrical energy; when the oil temperature in the second oil storage chamber 4 is below the second set temperature value, the operating power of the cooling device 3 can be reduced, thereby reducing energy consumption.

[0114] The circulation equipment can circulate the lubricating oil. When the lubricating oil enters the reducer, it will inevitably carry out impurities such as iron filings from the reducer. As the lubricating oil circulates, the impurities may clog the pipeline and damage the hydraulic components.

[0115] To avoid the above situation, a filter device can be installed in both the first oil storage chamber 1 and the second oil storage chamber 4. The filter device is used to filter impurities in the oil.

[0116] An oil filter can be used as the filtration device.

[0117] like Figure 4 and Figure 7 As shown, a first oil suction filter 25 is installed on the oil supply pipe connected to the oil inlet end of the oil supply device 2 in the first oil storage chamber 1. After the oil supply device 2 is started, the lubricating oil in the first oil storage chamber 1 will flow into the cooling device 3 after being filtered by the first oil suction filter 25. Figure 7 Partial perspective is used in the design.

[0118] like Figure 5As shown, an oil return filter 26 is installed on the oil supply pipe connected to the outlet of the heat exchange tube of the cooling device 3 inside the second oil storage chamber 4. Since the oil return filter 26 is located inside the second oil storage chamber 4, the figure only indicates its installation position. Under the action of the oil supply device 2, the lubricating oil cooled by the cooling device 3 needs to be filtered by the oil return filter 26 as it flows into the second oil storage chamber 4.

[0119] Such as 4 and Figure 8 As shown, a second oil suction filter 27 is installed on the oil supply pipe connected to the oil inlet end of the oil outlet device in the second oil storage chamber 4. After the oil outlet device is started, the lubricating oil in the second oil storage chamber 4 will flow into the check valve 20 and the reversing valve 19 after being filtered by the second oil suction filter 27. Figure 8 Partial perspective is used in the design.

[0120] When impurities flow into the oil pipeline, if there is a buildup, it will inevitably lead to an increase in oil pressure within the pipeline. The extent of impurity buildup can be determined by monitoring the oil pressure within the pipeline.

[0121] In this embodiment, a second pressure measuring interface 28 may be provided on the oil pipeline, and the pressure measuring component 12 may also include a second pressure gauge.

[0122] To allow users to quickly and intuitively obtain the oil pressure value inside the oil pipeline, the second pressure testing port 28 can be connected to a second pressure gauge via a pressure testing cable. When the equipment is in operation, the oil pressure at the second pressure testing port 28 will be transmitted to the second pressure gauge through the pressure testing cable, thus allowing users to easily obtain the oil pressure value inside the oil pipeline and understand the accumulation of impurities.

[0123] For enhanced intelligence, a second hydraulic sensor can be installed on the oil pipeline. This second hydraulic sensor can be electrically connected to the control module, and when the measured oil pressure exceeds a certain value, the control module can activate the alarm module to sound an alarm.

[0124] like Figure 1 As shown, in order to detect the oil pressure of the lubricating oil entering the cooling device 3, a second pressure measuring interface 28 can be installed on the inlet pipe connected to the inlet of the cooling device 3.

[0125] The above is just an example. In actual use, users can install a second pressure testing interface 28 and a second hydraulic sensor on the corresponding oil pipeline as needed.

[0126] In this embodiment, in order to better eliminate the influence of impurities such as iron filings in the oil on hydraulic components such as pipelines, magnets 29 can be provided in both the first oil storage chamber 1 and the second oil storage chamber 4. The magnets 29 can adsorb some of the iron filings in the oil, thereby reducing the burden on the filtration device.

[0127] In circulating equipment, the connections involving infusion pipes, pipe fittings, flanges, etc., can be sealed using sealing rings or other methods to prevent oil leakage.

[0128] In this embodiment, the circulation device may also include a display panel, wherein the operating parameters of the oil conveying device 2, the cooling device 3, the oil delivery device 5, and the values ​​measured by various sensors and other components can all be displayed on the display panel.

[0129] The reducer can be pre-stored with lubricating oil. Before conducting a load test, the following operations can be performed on the circulating equipment:

[0130] Close the first oil outlet valve 10 and inject a certain amount of lubricating oil into the first oil storage chamber 1, wherein the level of the lubricating oil is not lower than the first preset value;

[0131] Close the second oil outlet valve 15 and inject a certain amount of lubricating oil into the second oil storage chamber 4, wherein the level of the lubricating oil is between the second preset upper limit value and the second preset lower limit value.

[0132] Connect the oil inlet valve 9 to the oil outlet port of the reducer via a pipe;

[0133] Connect the high-pressure ball valve 22 to the oil inlet port of the reducer via a pipeline.

[0134] In this embodiment, a speed reducer test system is also proposed, including a speed reducer loading test platform and the speed reducer lubricating oil circulation equipment mentioned above.

[0135] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0136] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention.

Claims

1. A gearbox lubricating oil circulation device, characterized in that, include: The first oil reservoir is used to store the lubricating oil discharged from the reducer; An oil delivery device is used to extract lubricating oil from the first oil storage chamber; A cooling device is used to cool the lubricating oil drawn from the first oil storage chamber; The second oil reservoir is used to store cooled lubricating oil. An oil delivery device is used to extract lubricating oil from the second oil storage chamber. The oil outlet of the oil delivery device is connected to the oil inlet port of the reducer. The second oil storage chamber is equipped with a second liquid level detection module for detecting the liquid level: when the liquid level in the second oil storage chamber exceeds the second preset upper limit value, the lubricating oil drawn by the oil delivery device is delivered to the first oil storage chamber. When the liquid level in the second oil storage chamber is lower than the second preset lower limit, the oil delivery device stops. When the liquid level in the second oil storage chamber is between the second preset upper limit value and the second preset lower limit value, the lubricating oil drawn by the oil delivery device is delivered to the reducer. Both the first and second oil storage chambers are equipped with temperature measurement modules for measuring oil temperature; wherein, the operating state of the cooling device is adjusted according to the oil temperature in the first oil storage chamber; and the operating state of the oil delivery device is adjusted according to the oil temperature in the second oil storage chamber.

2. The gearbox lubricating oil circulation device according to claim 1, characterized in that, The first oil storage chamber is equipped with a first liquid level detection module for detecting the liquid level; wherein... When the liquid level in the first oil storage chamber exceeds a first preset value, the oil delivery device is activated; When the liquid level in the first oil storage chamber is lower than the first preset value, the oil delivery device stops.

3. The gearbox lubricating oil circulation device according to claim 1, characterized in that, The oil delivery device is equipped with a reversing valve at its oil outlet end, wherein the reversing valve includes an inlet, a first outlet, and a second outlet. The liquid inlet is connected to the second oil storage chamber, the first liquid outlet is connected to the first oil storage chamber, and the second liquid outlet is connected to the oil inlet port of the reducer.

4. The gearbox lubricating oil circulation device according to any one of claims 1-3, characterized in that, When the oil temperature in the first oil storage chamber exceeds the first set temperature value, the oil delivery device is controlled to increase its operating power. When the oil temperature in the second oil storage chamber exceeds the second set temperature value, the cooling device is controlled to increase its operating power.

5. The gearbox lubricating oil circulation device according to any one of claims 1-3, characterized in that, The cooling device includes an air cooler or a water cooler.

6. The gearbox lubricating oil circulation device according to any one of claims 1-3, characterized in that, Both the first oil storage chamber and the second oil storage chamber are equipped with a filter device, which is used to filter impurities in the oil.

7. The gearbox lubricating oil circulation device according to claim 6, characterized in that, The filtration device includes an oil filter.

8. A speed reducer testing system, characterized in that, The gearbox lubricating oil circulation device includes any one of claims 1-7.

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