Engine oil cooling test device for engine pedestal

Abstract

The invention discloses an engine oil cooling test device for an engine bench, and relates to the technical field of engine bench tests, the engine oil cooling test device comprises a base, a detection device, an oil inlet device and a sampling device are arranged above the base, and an engine and a cooling box are started; engine oil enters the liquid conveying cylinder through the electric push rod, the liquid conveying cylinder and the check valve, at the moment, the engine oil enters the oil inlet pipe and the engine for testing, detection when the engine oil of different flows enters the engine can be achieved through different oil holes, and circulation of the engine oil of different flows may affect the heat dissipation effect; detection is beneficial to determining the appropriate engine oil flow so as to guarantee the heat dissipation requirement of an engine, when different oil holes are used, engine oil possibly remains in the oil holes, and at the moment, the engine oil can drip into the collecting groove and is collected through the collecting groove, and waste is avoided.

Description

Technical Field

[0001] The invention relates to the technical field of engine bench test, in particular to an engine bench oil cooling test device. Background Art

[0002] Engine oil plays a role in lubrication, cooling, shock absorption and buffering in the engine. For example, during the operation of the engine, engine oil can reduce the friction between the components and prevent wear; at the same time, engine oil can also absorb some heat and help the engine dissipate heat.

[0003] The patent with the patent announcement number CN215004275U relates to the field of engine bench test technology. The patent discloses an engine bench oil cooling test device, which relates to the field of engine bench oil cooling test technology, including a body and a fixed block, and also includes a cooling box installed above the body, and a water inlet is reserved on the outer wall of the cooling box, a first water outlet is reserved on the right side of the outer wall of the cooling box, and a valve is installed on the outer wall of the first water outlet, a second water outlet is reserved on the outer wall of the body, and a water tank is installed on the right side of the outer wall of the body, and a third water outlet is reserved on the outer wall of the water tank, a first motor is arranged inside the water tank, and a spiral rod is installed on the outer wall of the first motor, and a bearing is installed on the left side of the outer wall of the spiral rod, a second motor is installed above the water tank, and an oil outlet pipe is installed in the middle position of the second motor. The patent has a large contact area for cooling the oil, which increases the cooling speed and working efficiency of the oil.

[0004] In the above patent, the contact area of ​​the cooling oil is large, which increases the cooling speed and working efficiency of the oil. However, the current measuring equipment has the following problems: oils of different flow rates have different flow characteristics in the cooling system, which will affect the cooling efficiency of the oil. If the cooling of the oil at different flow rates cannot be detected, it is difficult to accurately evaluate the performance of the cooling system, which may cause the engine to overheat or overcool during actual operation. Summary of the invention

[0005] In view of the deficiencies in the prior art, the present invention provides an engine bench oil cooling test device, which solves the problems raised in the above-mentioned background technology.

[0006] To achieve the above objectives, the present invention is implemented through the following technical solutions: an engine bench oil cooling test device, including a base, a detection device, an oil inlet device and a sampling device are arranged above the base; wherein the detection device includes an oil tank, a hollow cylinder, an electric push rod, an infusion cylinder, a check valve, an engine, a cooling box, an oil inlet pipe, a collecting tank, a circulating oil pipe and a cooling shell, the oil tank is fixedly mounted on the top of the base, the hollow cylinder is fixedly mounted on the output port of the oil tank, the fixed end of the electric push rod is fixedly mounted on the inner wall of the base, one side of the infusion cylinder is slidably mounted on the inner wall of the hollow cylinder, the other side of the infusion cylinder is fixedly mounted on the output end of the electric push rod, and the check valve is arranged At the top of the infusion cylinder, the engine is arranged on the top of the base, the cooling box is arranged on the top of the base, the oil inlet pipe is arranged on the right side of the engine, the movement of the infusion cylinder drives the check valve to move, and the upward movement of the check valve will open the output port of the oil tank, so that the engine oil enters the infusion cylinder, and the engine oil enters the connecting hole of the hollow cylinder through the oil hole. When the oil hole moves to overlap with the hollow cylinder, the engine oil enters the oil inlet pipe at this time, and the engine oil enters the engine for testing. The collecting tank is arranged on the top of the base, the circulating oil pipe is arranged inside the base, and the cooling shell is arranged on the outer wall of the circulating oil pipe. The engine oil flows inside the circulating oil pipe, and the cooling water flows in the cooling shell outside the circulating oil pipe, and the two exchange heat.

[0007] According to the above technical solution, a connecting hole is provided on the side of the hollow cylinder close to the oil inlet pipe, an oil hole is provided on the side of the infusion cylinder close to the oil inlet pipe, the engine is connected to the oil inlet pipe, the circulating oil pipe is connected to the engine, and the cooling shell is connected to the cooling box. After passing through the engine, the engine oil enters the circulating oil pipe for heat exchange. At this time, the coolant is input from the cooling box into the cooling shell.

[0008] According to the above technical solution, the oil inlet device includes a fixed frame, a rotating motor and an elastic telescopic rod. The fixed frame is fixedly installed on the top of the oil tank, the fixed end of the rotating motor is fixedly installed on the top of the fixed frame, and the elastic telescopic rod is fixedly installed on the output end of the rotating motor. The fixed end of the elastic telescopic rod is driven to rotate by the rotation of the output end of the rotating motor.

[0009] According to the above technical solution, the oil inlet device also includes a stirring rod and a stirring plate. The stirring rod is fixedly mounted on the movable end of the elastic telescopic rod, and the stirring plate is fixedly mounted on the movable end of the elastic telescopic rod. The movable end of the elastic telescopic rod rotates to drive the stirring rod to rotate. When the check valve moves upward, it contacts the stirring plate to cause the movable end of the elastic telescopic rod to contract, thereby causing the stirring plate to move upward.

[0010] According to the above technical scheme, the oil inlet device also includes an oil inlet, a filter element, a connecting frame, an insert rod, a No. 1 spring, a fixed plate and a rotating rod, the oil inlet is arranged at the input port of the oil tank, the filter element is arranged on the inner wall of the oil inlet, the connecting frame is fixedly installed on the top of the oil tank, a docking groove is opened on the side of the filter element close to the connecting frame, the insert rod is slidably installed on the inner wall of the connecting frame, the No. 1 spring is arranged between the insert rod and the connecting frame, and the insert rod is driven to reset by the arranged No. 1 spring, the fixed plate is fixedly installed on the left side of the oil tank, the rotating rod is rotatably installed on the inner wall of the fixed plate, the rotating rod is transmission-connected to the output end of the rotating motor through a No. 1 belt, and the top of the insert rod is arranged as an inclined surface. When the filter element needs to be replaced, the filter element can be taken out by moving the insert rod out of the docking groove. When the filter element is installed, the insert rod moves outward through the contact between the outer wall of the filter element and the inclined surface of the insert rod. When the docking groove and the insert rod are on the same horizontal line, the insert rod is inserted into the docking groove, and the installation of the filter element is completed.

[0011] According to the above technical solution, the sampling device includes a brake block, a conduit and a fixed rod. The brake block is fixedly installed at the bottom of the rotating rod. One side of the conduit is fixedly passed through the inner and outer walls of the base. The other side of the conduit is arranged inside the circulating oil pipe. The fixed rod is fixedly installed on the top of the base. A one-way valve is arranged between the conduit and the circulating oil pipe, and the brake block is driven to rotate by the rotation of the rotating rod.

[0012] According to the above technical solution, the sampling device also includes a sliding cylinder and a No. 2 spring. One side of the sliding cylinder is slidably installed on the outer wall of the catheter, and the other side of the sliding cylinder is slidably installed on the circumferential surface of the fixed rod. The No. 2 spring is arranged between the sliding cylinder and the base. The sliding cylinder is driven to reset by the arranged No. 2 spring, and the volume of the inner cavity of the catheter is reduced by the downward movement of the sliding cylinder. When the No. 2 spring drives the sliding cylinder to reset, the engine oil is sucked in, so that the subsequent engine oil enters the catheter.

[0013] According to the above technical solution, the sampling device also includes a one-way valve, an arc block and a collecting tube. The one-way valve is arranged on the inner wall of the sliding cylinder, the arc block is fixedly installed on the top of the sliding cylinder, and the collecting tube is arranged on the top of the base. The conduit is filled with air, and the volume of the inner cavity of the conduit is reduced by the downward movement of the sliding cylinder. Under the action of the one-way valve that only allows oil to flow out but not in, the oil flows out until it enters the collecting tube.

[0014] The present invention provides an engine bench oil cooling test device, which has the following beneficial effects: (1) The invention starts the engine and the cooling box by setting up a detection device. After the engine oil is input into the oil tank, the engine oil enters the infusion tube through the electric push rod, the infusion tube, and the check valve. The engine oil enters the connecting hole of the hollow tube through the oil hole. When the oil hole moves to overlap with the hollow tube, the engine oil enters the oil inlet pipe. The engine oil enters the engine for testing. The different oil holes can be used to detect the oil entering the engine at different flow rates. The circulation of oil at different flow rates may affect the heat dissipation effect. The detection helps to determine the appropriate oil flow rate to ensure the heat dissipation requirements of the engine. When using different oil holes, there may be oil remaining in the oil holes. At this time, the oil will drip into the collection tank and be collected by the collection tank to avoid waste.

[0015] (2) The invention, through the setting of the oil inlet device, when the engine oil is input, the engine oil will be filtered by the filter element and then enter the oil inlet. When the filter element needs to be replaced, the filter element can be taken out by the plug-in rod. When the filter element is installed, the filter element is installed by the outer wall of the filter element, the plug-in rod, and the No. 1 spring. In the engine oil test, the state of the filter element may affect the test results. The rapid installation and removal of the filter element can ensure that the state of the filter element is consistent during each test, thereby improving the accuracy and reliability of the test results. After the engine oil enters the fuel tank, during the process of adding the engine oil, Bubbles may be generated in the oil, which will affect the flow characteristics of the oil and thus the accuracy of the oil measurement. By rotating the motor and the elastic telescopic rod to rotate the stirring rod, the bubbles can be caused to rise to the liquid surface and burst, thereby eliminating the bubbles. The agitator plate is moved upward by the check valve. The movement of the agitator plate causes the precipitated oil to be stirred to the working range of the stirring rod. The oil will precipitate if it is left stationary in the oil tank for a long time. The precipitated part of the oil may deteriorate. Stirring upward can mix this part of the oil with the upper layer of oil to keep the overall performance of the oil stable.

[0016] (3) The invention reduces the volume of the inner cavity of the conduit through the setting of the sampling device through the rotating rod, brake block, arc block, sliding cylinder and No. 2 spring. The engine oil flows outward under the action of a one-way valve that only allows oil to flow out until it enters the collection pipe. The conduit is connected to the circulating oil pipe. When the sliding cylinder moves downward, the air is discharged. When the No. 2 spring drives the sliding cylinder to reset, the engine oil is sucked in, so that the subsequent engine oil enters the conduit. During the test, periodic sampling can ensure that the conditions of each test are the same, thereby improving the accuracy and reliability of the test results. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 It is a schematic diagram of the overall cross-sectional structure of the device of the present invention; Figure 3 For the present invention Figure 2 A schematic diagram of the structure enlargement of part A; Figure 4 This is a schematic diagram of the position structure of the circulating oil pipe and the cooling shell side of the present invention; Figure 5 It is a schematic diagram of the position structure of the filter element and the plug rod of the present invention; Figure 6 This is a schematic diagram of the position structure of the conduit and the circulating oil pipe of the present invention; Figure 7 For the present invention Figure 6 Schematic diagram of the enlarged structure of part B.

[0018] In the figure: 1. base; 2. oil tank; 3. hollow cylinder; 4. electric push rod; 5. infusion cylinder; 6. check valve; 7. engine; 8. cooling box; 9. oil inlet pipe; 10. collecting tank; 11. circulating oil pipe; 12. cooling shell; 20. fixed frame; 21. rotating motor; 22. elastic telescopic rod; 23. stirring rod; 24. stirring plate; 25. oil inlet; 26. filter element; 27. connecting frame; 28. plug-in rod; 29. ​​No. 1 spring; 210. fixed plate; 211. rotating rod; 31. brake block; 32. guide tube; 33. fixed rod; 34. sliding cylinder; 35. No. 2 spring; 36. check valve; 37. arc block; 38. collecting pipe. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0020] See also Figure 1-Figure 7An embodiment of the present invention is: an engine bench oil cooling test device, comprising a base 1, a detection device is arranged above the base 1, the detection device comprises an oil tank 2, a hollow cylinder 3, an electric push rod 4, an infusion cylinder 5, a check valve 6, an engine 7, a cooling box 8, an oil inlet pipe 9, a collecting tank 10, a circulating oil pipe 11 and a cooling shell 12, the oil tank 2 is fixedly mounted on the top of the base 1, the hollow cylinder 3 is fixedly mounted on the output port of the oil tank 2, the fixed end of the electric push rod 4 is fixedly mounted on the inner wall of the base 1, one side of the infusion cylinder 5 is slidably mounted on the inner wall of the hollow cylinder 3, the other side of the infusion cylinder 5 is fixedly mounted on the output end of the electric push rod 4, the check valve 6 is arranged on the top of the infusion cylinder 5, and the detection device comprises an oil tank 2, a hollow cylinder 3, an electric push rod 4, an infusion cylinder 5, a check valve 6, an engine 7, a cooling box 8, an oil inlet pipe 9, a collecting tank 10, a circulating oil pipe 11 and a cooling shell 12, the oil tank 2 is fixedly mounted on the top of the base 1, the hollow cylinder 3 is fixedly mounted on the output port of the oil tank 2, the fixed end of the electric push rod 4 is fixedly mounted on the inner wall of the base 1, the infusion cylinder 5 is slidably mounted on the inner wall of the hollow cylinder 3, the other side of the infusion cylinder 5 is fixedly mounted on the output end of the electric push rod 4, the check valve 6 is arranged on the top of the infusion cylinder 5, and the detection device comprises an oil tank 2, a hollow cylinder 3, an electric push rod 4, an infusion cylinder 5, a check valve 6, an engine 7, a cooling box 8, an oil inlet pipe 9, a collecting tank The engine 7 is arranged on the top of the base 1, and different oil holes can be used to detect when different flow rates of oil enter the engine 7. Oil circulation with different flow rates may affect the heat dissipation effect. The detection helps to determine the appropriate oil flow rate to ensure the heat dissipation requirements of the engine 7. The cooling box 8 is arranged on the top of the base 1, the oil inlet pipe 9 is arranged on the right side of the engine 7, and the collecting tank 10 is arranged on the top of the base 1. When using different oil holes, there may be oil remaining in the oil holes. At this time, the oil will drip into the collecting tank 10 and be collected by the collecting tank 10 to avoid waste. The circulating oil pipe 11 is arranged inside the base 1, and the cooling shell 12 is arranged on the outer wall of the circulating oil pipe 11.

[0021] A connecting hole is provided on one side of the hollow cylinder 3 near the oil inlet pipe 9, an oil hole is provided on one side of the infusion cylinder 5 near the oil inlet pipe 9, the engine 7 is connected to the oil inlet pipe 9, the circulating oil pipe 11 is connected to the engine 7, and the cooling shell 12 is connected to the cooling box 8, and the two perform heat exchange. When the engine oil temperature is high, the cooling water plays a cooling role, thereby realizing heat exchange of the engine oil.

[0022] When the present embodiment is working, the engine 7 and the cooling box 8 are started, and the engine oil is input into the oil tank 2. At this time, the output end of the electric push rod 4 moves upward to drive the infusion tube 5 to move upward. The movement of the infusion tube 5 drives the check valve 6 to move. The upward movement of the check valve 6 opens the output port of the oil tank 2, allowing the engine oil to enter the infusion tube 5. The engine oil enters the connecting hole of the hollow cylinder 3 through the oil hole. When the oil hole moves to overlap with the hollow cylinder 3, the engine oil enters the oil inlet pipe 9. The engine oil enters the engine 7 for testing. The detection of engine oil entering the engine 7 with different flow rates can be achieved through different oil holes. The circulation of engine oil with different flow rates may affect the heat dissipation. The detection is helpful to determine the appropriate oil flow rate to ensure the heat dissipation demand of the engine 7. When using different oil holes, there may be oil remaining in the oil holes. At this time, the oil will drip into the collecting tank 10 and be collected by the collecting tank 10 to avoid waste. After passing through the engine 7, the oil enters the circulating oil pipe 11 for heat exchange. At this time, the coolant is input from the cooling box 8 to the cooling shell 12. The oil flows inside the circulating oil pipe 11, and the cooling water flows outside the circulating oil pipe 11 in the cooling shell 12. The two exchange heat. When the oil temperature is high, the cooling water plays a cooling role, thereby realizing heat exchange of the oil.

[0023] See also Figure 1-Figure 7 On the basis of the above embodiment, in another embodiment of the present invention, an oil inlet device and a sampling device are arranged above the base 1, and the oil inlet device includes a fixed frame 20, a rotating motor 21 and an elastic telescopic rod 22. The fixed frame 20 is fixedly mounted on the top of the oil tank 2, the fixed end of the rotating motor 21 is fixedly mounted on the top of the fixed frame 20, and the elastic telescopic rod 22 is fixedly mounted on the output end of the rotating motor 21. The fixed end of the elastic telescopic rod 22 is driven to rotate by the rotation of the output end of the rotating motor 21.

[0024] The oil inlet device also includes a stirring rod 23 and a stirring plate 24. The stirring rod 23 is fixedly mounted on the movable end of the elastic telescopic rod 22. The stirring rod 23 can cause bubbles to rise to the liquid surface and burst, thereby eliminating the bubbles. The stirring plate 24 is fixedly mounted on the movable end of the elastic telescopic rod 22. The stirring plate 24 moves so that the precipitated oil is stirred to the working range of the stirring rod 23. The oil will precipitate if it is left stationary in the oil tank for a long time, and the precipitated part of the oil may deteriorate. Stirring upwards can mix this part of the oil with the upper layer of oil to keep the overall performance of the oil stable.

[0025] The oil inlet device also includes an oil inlet 25, a filter element 26, a connecting frame 27, an insert rod 28, a No. 1 spring 29, a fixing plate 210 and a rotating rod 211. The oil inlet 25 is arranged at the input port of the oil tank 2, the filter element 26 is arranged on the inner wall of the oil inlet 25, the connecting frame 27 is fixedly installed on the top of the oil tank 2, a docking groove is opened on the side of the filter element 26 close to the connecting frame 27, the insert rod 28 is slidably installed on the inner wall of the connecting frame 27, and the No. 1 spring 29 is arranged between the insert rod 28 and the connecting frame 27. The No. 1 spring 29 drives the block rod 28 to reset, the fixed plate 210 is fixedly installed on the left side of the oil tank 2, the rotating rod 211 is rotatably installed on the inner wall of the fixed plate 210, the rotating rod 211 is connected to the output end of the rotating motor 21 through the No. 1 belt, and the top of the block rod 28 is set as an inclined surface. In the engine oil test, the state of the filter element 26 may affect the test results. Quick installation and removal of the filter element 26 can ensure that the state of the filter element 26 is consistent during each test, thereby improving the accuracy and reliability of the test results.

[0026] The sampling device includes a brake block 31, a conduit 32 and a fixed rod 33. The brake block 31 is fixedly installed at the bottom of the rotating rod 211. One side of the conduit 32 is fixedly passed through the inner and outer walls of the base 1. The other side of the conduit 32 is arranged inside the circulating oil pipe 11. The fixed rod 33 is fixedly installed on the top of the base 1. A one-way valve 1 is arranged between the conduit 32 and the circulating oil pipe 11. The conduit 32 is connected to the circulating oil pipe 11. Under the action of the one-way valve 1 that only allows oil to flow out but not in, the engine oil flows out until it enters the collecting pipe 38.

[0027] The sampling device also includes a sliding cylinder 34 and a No. 2 spring 35. One side of the sliding cylinder 34 is slidably installed on the outer wall of the conduit 32, and the other side of the sliding cylinder 34 is slidably installed on the circumferential surface of the fixed rod 33. The No. 2 spring 35 is arranged between the sliding cylinder 34 and the base 1. The sliding cylinder 34 is reset by the arranged No. 2 spring 35. When the No. 2 spring 35 drives the sliding cylinder 34 to reset, the engine oil is sucked in, so that the subsequent engine oil enters the conduit 32.

[0028] The sampling device also includes a one-way valve 36, an arc block 37 and a collecting tube 38. The one-way valve 36 is arranged on the inner wall of the sliding cylinder 34, the arc block 37 is fixedly installed on the top of the sliding cylinder 34, and the collecting tube 38 is arranged on the top of the base 1. During the test, periodic sampling can ensure that the conditions of each test are the same, thereby improving the accuracy and reliability of the test results.

[0029] When the present embodiment is working, when inputting engine oil, the engine oil will enter the oil inlet 25 after being filtered by the filter element 26, so that the filtered engine oil enters the oil tank 2. When it is necessary to replace the filter element 26, the plug-in rod 28 can be moved out of the docking groove, and the filter element 26 can be taken out at this time. When installing the filter element 26, the outer wall of the filter element 26 contacts the inclined surface of the plug-in rod 28, so that the plug-in rod 28 moves outward, and the plug-in rod 28 compresses the No. 1 spring 29 while moving. When the docking groove and the plug-in rod 28 are at the same horizontal line, the No. 1 spring 29 is released and drives the plug-in rod 28 to be inserted into the docking groove. At this time, the installation of the filter element 26 is completed. In the engine oil test, the state of the filter element 26 may affect the test results. Quick installation and removal of the filter element 26 can ensure that the state of the filter element 26 is consistent during each test, thereby improving the accuracy and reliability of the test results. After the engine oil enters the oil tank 2, the filter element 26 is replaced by the filter element 26. The fixed end of the elastic telescopic rod 22 is driven to rotate by the rotation of the output end of the rotating motor 21, that is, the movable end of the elastic telescopic rod 22 is driven to rotate by the rotation of the stirring rod 23. The output end of the rotating motor 21 rotates while the rotating rod 211 is driven to rotate by the No. 1 belt. Bubbles may be generated in the process of adding engine oil. These bubbles will affect the flow characteristics of the engine oil, thereby affecting the accuracy of the engine oil measurement. The stirring rod 23 can cause the bubbles to rise to the liquid surface and burst, thereby eliminating the bubbles. When the check valve 6 moves upward, it contacts the liquid stirring plate 24 to cause the movable end of the elastic telescopic rod 22 to contract, that is, the liquid stirring plate 24 moves upward. The movement of the liquid stirring plate 24 causes the precipitated engine oil to be stirred to the working range of the stirring rod 23. The engine oil will precipitate if it is left in the oil tank for a long time. The precipitated part of the engine oil may deteriorate. The upward stirring can mix this part of the engine oil with the upper layer of engine oil to keep the overall performance of the engine oil stable. The rotation of the rotating rod 211 drives the brake block 31 to rotate. The rotation of the brake block 31 will contact the arc block 37, so that the arc block 37 moves downward and drives the sliding cylinder 34 to move downward. The downward movement of the sliding cylinder 34 will move along the fixed rod 33 and compress the No. 2 spring 35. The conduit 32 is filled with air. The downward movement of the sliding cylinder 34 reduces the volume of the inner cavity of the conduit 32. Under the action of the one-way valve 36 that only flows out but not in, the engine oil flows out until it enters the collecting pipe 38, and is connected to the circulating oil pipe 11 through the conduit 32. When the sliding cylinder 34 moves downward, the air is discharged, and when the No. 2 spring 35 drives the sliding cylinder 34 to reset, the engine oil is sucked in, so that the subsequent engine oil enters the conduit 32 through the one-way valve 1 in the circulating oil pipe 11. In the test, periodic sampling can ensure that the conditions of each test are the same, thereby improving the accuracy and reliability of the test results.

[0030] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An engine bench oil cooling test device, comprising a base (1), characterized in that: A detection device, an oil inlet device and a sampling device are arranged above the base (1); The detection device comprises an oil tank (2), a hollow cylinder (3), an electric push rod (4), an infusion cylinder (5), a check valve (6), an engine (7), a cooling box (8), an oil inlet pipe (9), a collecting tank (10), a circulating oil pipe (11) and a cooling shell (12), wherein the oil tank (2) is fixedly mounted on the top of the base (1), the hollow cylinder (3) is fixedly mounted on the output port of the oil tank (2), the fixed end of the electric push rod (4) is fixedly mounted on the inner wall of the base (1), and one side of the infusion cylinder (5) is slidably mounted on the hollow cylinder. (3) inner wall, the other side of the infusion cylinder (5) is fixedly mounted on the output end of the electric push rod (4), the check valve (6) is arranged on the top of the infusion cylinder (5), the engine (7) is arranged on the top of the base (1), the cooling box (8) is arranged on the top of the base (1), the oil inlet pipe (9) is arranged on the right side of the engine (7), the collecting tank (10) is arranged on the top of the base (1), the circulating oil pipe (11) is arranged inside the base (1), and the cooling shell (12) is arranged on the outer wall of the circulating oil pipe (11).

2. The engine bench oil cooling test device according to claim 1, characterized in that: A connecting hole is provided on a side of the hollow cylinder (3) close to the oil inlet pipe (9), an oil hole is provided on a side of the infusion cylinder (5) close to the oil inlet pipe (9), the engine (7) is connected to the oil inlet pipe (9), the circulating oil pipe (11) is connected to the engine (7), and the cooling shell (12) is connected to the cooling box (8).

3. The engine bench oil cooling test device according to claim 2, characterized in that: The oil inlet device comprises a fixing frame (20), a rotating motor (21) and an elastic telescopic rod (22); the fixing frame (20) is fixedly mounted on the top of the oil tank (2); a fixed end of the rotating motor (21) is fixedly mounted on the top of the fixing frame (20); and the elastic telescopic rod (22) is fixedly mounted on the output end of the rotating motor (21).

4. The engine bench oil cooling test device according to claim 3, characterized in that: The oil inlet device further comprises a stirring rod (23) and a liquid stirring plate (24); the stirring rod (23) is fixedly mounted on the movable end of the elastic telescopic rod (22); and the liquid stirring plate (24) is fixedly mounted on the movable end of the elastic telescopic rod (22).

5. The engine bench oil cooling test device according to claim 4, characterized in that: The oil inlet device further comprises an oil inlet (25), a filter element (26), a connecting frame (27), an insert rod (28), a No. 1 spring (29), a fixing plate (210) and a rotating rod (211); the oil inlet (25) is arranged at the input port of the oil tank (2); the filter element (26) is arranged on the inner wall of the oil inlet (25); the connecting frame (27) is fixedly mounted on the top of the oil tank (2); and a side of the filter element (26) close to the connecting frame (27) is provided with a pair of The plug rod (28) is slidably mounted on the inner wall of the connecting frame (27), the first spring (29) is arranged between the plug rod (28) and the connecting frame (27), the fixed plate (210) is fixedly mounted on the left side of the oil tank (2), the rotating rod (211) is rotatably mounted on the inner wall of the fixed plate (210), the rotating rod (211) is transmission-connected to the output end of the rotating motor (21) through a first belt, and the top of the plug rod (28) is arranged as an inclined surface.

6. The engine bench oil cooling test device according to claim 5, characterized in that: The sampling device comprises a brake block (31), a conduit (32) and a fixing rod (33); the brake block (31) is fixedly mounted on the bottom of the rotating rod (211); one side of the conduit (32) is fixedly passed through the inner and outer walls of the base (1); the other side of the conduit (32) is arranged inside the circulating oil pipe (11); the fixing rod (33) is fixedly mounted on the top of the base (1); and a one-way valve is arranged between the conduit (32) and the circulating oil pipe (11).

7. The engine bench oil cooling test device according to claim 6, characterized in that: The sampling device further comprises a sliding cylinder (34) and a second spring (35), one side of the sliding cylinder (34) being slidably mounted on the outer wall of the guide tube (32), and the other side of the sliding cylinder (34) being slidably mounted on the circumferential surface of the fixed rod (33), and the second spring (35) being arranged between the sliding cylinder (34) and the base (1).

8. The engine bench oil cooling test device according to claim 7, characterized in that: The sampling device further comprises a one-way valve (36), an arc block (37) and a collecting tube (38); the one-way valve (36) is arranged on the inner wall of the sliding cylinder (34); the arc block (37) is fixedly mounted on the top of the sliding cylinder (34); and the collecting tube (38) is arranged on the top of the base (1).

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