Control device and control method for realizing cold test cyclic utilization of engine

Abstract

The invention discloses a control device for realizing cyclic utilization of an engine in a cold test, belongs to the technical field of engine test, and solves the problems of relatively large test deviation and low test efficiency caused by influence on electronic components due to over-high temperature in an electric appliance cabinet during test. The control device comprises an electric appliance cabinet and a rotating device, a cabinet door is rotationally arranged on the electric appliance cabinet, the electric appliance cabinet is rotationally installed above the rotating device, a supporting plate is arranged in the electric appliance cabinet, a heat exchange box is arranged on the supporting plate, a heat exchange pipe is arranged in the heat exchange box, and a heat exchange pipe is arranged in the heat exchange box. A cooling pipe is arranged below the supporting plate, and the two ends of the cooling pipe penetrate through the supporting plate and communicate with the two ends of the heat exchange pipe in a one-to-one correspondence mode. According to the control device for realizing cyclic utilization of the cold test of the engine, the accuracy of the test of the engine is improved. The invention further discloses a control method, and the test efficiency is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of engine testing, and more particularly to a control device and a control method for realizing cyclic utilization of cold testing of an engine. Background Art

[0002] The engine cold test is a method used to detect the assembly quality of internal combustion engines. When the cold test technology is used to detect the engine book, the engine does not need fuel to run, nor does it need cooling water for cooling. The engine under test enters the test bench, and the engine's air intake and exhaust ports are clamped by cylinders or hydraulic cylinders. At the same time, it is connected to the equipment through a special oil pressure adapter, and the engine's flywheel or adapter is automatically clamped by a gripper or other clamping mechanism. The servo motor of the test bench drives the engine to rotate at different speeds. At the same time, the test system collects data from the engine's air intake, exhaust port, torque sensor of the clamping mechanism, and pressure sensor of the main oil channel outlet through a data acquisition card. The side view data obtained is analyzed by the test bench special software, and then the analysis results are compared with the limit values ​​set by the test bench to determine whether the engine has been assembled correctly.

[0003] During the test, since most of the electronic components are placed in the electrical cabinet where the temperature is high, the electronic components are affected by the high temperature, resulting in deviations in the measurement results. In severe cases, the electronic components may be damaged, reducing the test efficiency. Summary of the invention

[0004] The technical problem to be solved by the present invention is to address the above-mentioned deficiencies in the prior art. One purpose of the present invention is to provide a control device for realizing the recycling of engine cold test, thereby effectively reducing the temperature in the electrical cabinet and improving the accuracy of engine test.

[0005] The second purpose of the present invention is to provide a method for realizing the recycling of engine cold test, effectively protecting electronic components and improving test efficiency.

[0006] The above-mentioned purpose one is not achieved. The present invention provides a control device for realizing the recycling of engine cold test, including an electrical cabinet and a rotating device. The electrical cabinet is rotatably provided with a cabinet door, and the electrical cabinet is rotatably installed above the rotating device. A support plate is provided in the electrical cabinet, and a heat exchange box is provided on the support plate. A heat exchange tube is provided in the heat exchange box, and a cooling tube is provided below the support plate, and both ends of the cooling tube pass through the support plate and are connected to the two ends of the heat exchange tube in a one-to-one correspondence. A cooling device is provided on one side of the heat exchange box, and the cooling device includes a water cooler and a water pump. The water cooler and the water pump are both installed on the support plate, and the water outlet of the water cooler is connected to the water inlet of the water pump, and the water outlet of the water pump and the water inlet of the water cooler are both connected to the heat exchange box. A temperature sensor is provided on the inner wall of the electrical cabinet, and the temperature sensor is installed below the support plate. The water cooler and the water pump are both electrically connected to the temperature sensor through a controller, and an integrated circuit socket is provided in the electrical cabinet.

[0007] As a further improvement, the cooling pipe is S-shaped.

[0008] Furthermore, the cooling tube is provided with a plurality of heat sinks, and the heat sinks are in a spiral structure.

[0009] Furthermore, a ventilation hole is provided on the top of the electrical cabinet, an exhaust fan is provided at the bottom of the ventilation hole, a dust cover is provided on the top of the ventilation hole, and a plurality of exhaust slots are provided on the dust cover.

[0010] Furthermore, a transparent window is provided on the cabinet door.

[0011] Furthermore, the electrical cabinet and the cabinet door are both provided with shutters, the shutters corresponding to the cabinet door are located below the transparent window, there are two shutters corresponding to the electrical cabinet, and the two shutters corresponding to the electrical cabinet are respectively installed in the middle of both sides of the electrical cabinet.

[0012] Furthermore, the electrical cabinet is provided with exhaust fans, there are four exhaust fans in total, and the four exhaust fans are symmetrically installed in pairs on both sides of the electrical cabinet.

[0013] Furthermore, the rotating device includes a base, a rotating shaft, two support rods, and two telescopic rods. The rotating shaft is rotatably installed on the base, and the top of the rotating shaft is connected to the bottom of the electrical cabinet. One end of the two support rods and the telescopic rods is provided with a universal wheel. The two support rods and the telescopic rods are installed at the bottom of the electrical cabinet. The two support rods and the telescopic rods are arranged at intervals, and the interval angle between adjacent support rods and telescopic rods is 90°.

[0014] Furthermore, the telescopic rod includes a fixed rod and a movable rod, the fixed rod is installed at the bottom of the electrical cabinet, one end of the movable rod is movably inserted in the fixed rod, the universal wheel is installed at the other end of the movable rod, one end of the movable rod is provided with a spring, the other end of the spring is connected to the fixed rod, the base is provided with an arc-shaped limiting groove, and the universal wheel is movably installed in the limiting groove.

[0015] To achieve the above-mentioned second objective, the present invention provides a control method for a control device, the method is as follows:

[0016] The temperature sensor detects the temperature of the electrical cabinet in real time and feeds the signal back to the controller;

[0017] When the temperature reaches the preset value, the controller controls the water cooler and the water pump to operate. At this time, the cooling water with a higher temperature in the cooling pipe flows to the cooling water with a lower temperature in the heat exchange pipe, and the water pump continuously transports the cooling water cooled by the water cooler to the heat exchange box, thereby reducing the temperature of the cooling water in the cooling pipe.

[0018] When the temperature drops below a preset value, the controller controls the water pump water cooler and the water pump to stop running.

[0019] Beneficial Effects

[0020] Compared with the prior art, the present invention has the following advantages:

[0021] 1. A control device and a control method for realizing the recycling of cold testing of an engine of the present invention utilize the characteristic that water with high temperature flows to water with low temperature to realize circulating cooling, transfer the heat under the support plate in the electrical cabinet to the top of the support plate, and then transfer the heat to the outside, ensuring that the temperature in the electrical cabinet 1 is at a normal temperature, thereby protecting the electronic components from being damaged by high temperature and ensuring the accuracy and efficiency of the test.

[0022] 2. The present invention provides a control device and a control method for realizing the recycling of cold test of an engine. When the back space of an electrical cabinet is small, it is inconvenient to repair and maintain the control device in the electrical cabinet. At this time, the control device in the electrical cabinet can be rotated to the front through a rotating device installed at the bottom of the electrical cabinet, which is convenient for maintenance personnel to repair and maintain it, and effectively reduces the space required for installing the electrical cabinet. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a schematic diagram of the main structure of the present invention;

[0024] Figure 2 It is a side view structural schematic diagram of the present invention;

[0025] Figure 3 It is a schematic diagram of the cross-sectional structure of the base in the present invention;

[0026] Figure 4 It is a schematic diagram of the cross-sectional structure of the telescopic rod in the present invention.

[0027] Among them: 1-electrical cabinet, 2-cooling pipe, 4-heat exchange pipe, 5-heat exchange box, 6-exhaust fan, 7-dust cover, 8-heat sink, 9-cabinet door, 10-transparent window, 11-louver, 12-exhaust fan, 13-support plate, 14-exhaust slot, 15-temperature sensor, 16-base, 17-rotating shaft, 18-support rod, 19-telescopic rod, 20-universal wheel, 21-limiting slot, 22-spring, 23-integrated circuit socket, 24-dust curtain, 31-water cooler, 32-water pump, 191-fixed rod, 192-movable rod. DETAILED DESCRIPTION

[0028] The present invention will be further described below with reference to the specific embodiments in the accompanying drawings.

[0029] See also Figure 1-4A control device for realizing the recycling of cold test of an engine comprises an electrical cabinet 1 and a rotating device. A cabinet door 9 is rotatably provided on the electrical cabinet 1. The electrical cabinet 1 is rotatably installed above the rotating device. A support plate 13 is provided inside the electrical cabinet 1. The support plate 13 divides the space inside the electrical cabinet 1 into an upper part and a lower part. The electronic components used for engine testing in the electrical cabinet are all installed below the support plate 13. A heat exchange box 5 is provided on the support plate 13. A heat exchange tube 4 is provided inside the heat exchange box 5. A cooling tube 2 is provided below the support plate 13. Both ends of the cooling tube 2 penetrate the support plate 13 and are connected to both ends of the heat exchange tube 4 in a one-to-one correspondence. There is cooling water in the heat exchange box 5, the cooling tube 2 and the heat exchange tube 4. A cooling device is provided on one side of the heat exchange box 5. The cooling device includes a water cooler 31 and a water pump 32, which are both mounted on the support plate 13, the water outlet of the water cooler 31 is connected to the water inlet of the water pump 32, and the water outlet of the water pump 31 and the water inlet of the water cooler 31 are both connected to the heat exchange box 5, a temperature sensor 15 is provided on the inner wall of the electrical cabinet 1, and the temperature sensor 15 is installed below the support plate 3, the water cooler 31 and the water pump 32 are both electrically connected to the temperature sensor 15 through a controller, an integrated circuit socket 23 is provided in the electrical cabinet 1, and the external circuit is connected to the electronic component circuit in the electrical cabinet 1 through the integrated circuit socket 23 on the electrical cabinet 1, and when the electrical cabinet 1 needs to be rotated, only the integrated circuit socket 23 needs to be turned. 3 is unplugged to disconnect the external circuit from the electrical cabinet 1, so as to avoid interference with the external circuit when the electrical cabinet 1 is rotated; preferably, the control device is installed on the back of the electrical cabinet 1, and the electronic components are installed on the front of the electrical cabinet 1; when the temperature sensor 15 detects that the temperature in the electrical cabinet 1 reaches the preset value, the cooling pipe 2 installed in the electrical cabinet 1 is in contact with the air, so that the temperature in the electrical cabinet 1 is transferred to the cooling water in the cooling pipe 2, so that the temperature of the cooling water in the cooling pipe 2 is increased, and the increased temperature of the cooling water in the cooling pipe 2 causes it to expand, and its density becomes lower, and there is a tendency to rise, while the cooling water in the heat exchange pipe 4 located above the cooling pipe 2 has a lower temperature and a higher density, and there is a tendency to fall. , so that the cooling water with a higher temperature in the cooling pipe 2 flows to the cooling water with a lower temperature in the heat exchange pipe 4, thereby bringing heat to the heat exchange box 5. At the same time, the temperature sensor 15 feeds back the signal to the controller, and the controller controls the water cooler 31 and the water pump 32 to start running. The water pump 32 transports the cooling water in the heat exchange box 5 to the water cooler 31 for cooling, and transports the cooled cooling water back to the heat exchange box 5, thereby transferring the heat generated by the electronic components installed at the bottom of the support plate 13 to the top of the support plate 13. The cooling is carried out in this cycle to ensure that the temperature in the electrical cabinet 1 is at a normal temperature, thereby protecting the electronic components from being damaged by high temperature and ensuring the accuracy and efficiency of its test.

[0030] In this embodiment, the cooling pipe 2 is S-shaped. The cooling pipe 2 absorbs heat in the electrical cabinet 1 by contacting the air in the electrical cabinet 1. The S-shaped cooling pipe 2 can increase the contact area between the cooling pipe 2 and the air in the limited space of the electrical cabinet 1, thereby improving the heat absorption capacity of the cooling pipe 2.

[0031] In this embodiment, a plurality of heat sinks 8 are provided on the cooling tube 2, and the heat sinks 8 are in a spiral structure. The heat sinks 8 can absorb the heat in the electrical cabinet 1, and then transfer the heat away through the cooling tube 2. The spiral structure of the heat sink 8 effectively improves its heat absorption capacity.

[0032] In this embodiment, a ventilation hole is provided on the top of the electrical cabinet 1, and an exhaust fan 6 is provided at the bottom of the ventilation hole. The heat generated by the operation of the water pump 32 and the heat transferred to the top of the support plate 13 through the heat exchange tube 4 and the water cooler 31 are discharged to the outside through the exhaust fan 6; a dust cover 7 is provided on the top of the ventilation hole, and a plurality of exhaust grooves 14 are provided on the dust cover 7 to prevent external dust from entering the electrical cabinet 1 through the ventilation hole on the top of the electrical cabinet 1 during idleness and affecting the operation of the cooling device 3.

[0033] In this embodiment, a transparent window 10 is provided on the cabinet door 9 , so that the staff can observe the electronic components inside the electrical cabinet 1 and their working status through the transparent window 10 .

[0034] In this embodiment, shutters 11 are provided on the electrical cabinet 1 and the cabinet door 9. The shutters 11 corresponding to the cabinet door 9 are located below the transparent window 10. There are two shutters 11 corresponding to the electrical cabinet 1, and the two shutters 11 corresponding to the electrical cabinet 1 are respectively installed in the middle of both sides of the electrical cabinet 1; the shutters 11 installed on both sides of the electrical cabinet 1 are symmetrical about the central axis of the electrical cabinet 1, and the two shutters 11 are located below the support plate 13, which facilitates the air flow inside the electrical cabinet 1 and further improves the heat dissipation effect.

[0035] In this embodiment, the electrical cabinet 1 is provided with exhaust fans 12, and there are four exhaust fans 12 in total. The four exhaust fans 12 are symmetrically installed in pairs on both sides of the electrical cabinet 1. The two exhaust fans 12 installed on each side of the electrical cabinet 1 are respectively located at both ends of the shutter 11, and the two exhaust fans 12 installed on the top of the shutter 11 are both located above the support plate 13. The air supply of the four exhaust fans 12 is further improved.

[0036] In this embodiment, the rotating device includes a base 16, a rotating shaft 17, two support rods 18, and two telescopic rods 19. The rotating shaft 17 is rotatably installed on the base 16, and the top of the rotating shaft 17 is connected to the bottom of the electrical cabinet 1. One end of the two support rods 18 and the telescopic rod 19 is provided with a universal wheel 20, and multiple universal wheels 20 are all located on the base 16 to support the electrical cabinet 1; the two support rods 18 and the telescopic rod 19 are all installed at the bottom of the electrical cabinet 1, and the two support rods 18 and the telescopic rods 19 are arranged at intervals, and the interval angle between adjacent support rods 18 and telescopic rods 19 is 90°; the electrical cabinet 1 is rotatably installed on the base 16 through the rotating shaft 17. When it is necessary to repair and maintain the control device in the electrical cabinet 1, the electrical cabinet 1 is rotated to rotate the control device originally located at the back to the front, and the wide space is convenient for repair and maintenance.

[0037] Preferably, a dustproof curtain 24 is installed at the bottom of the outer wall of the electrical cabinet 1, and the cross-section of the base 16 is an isosceles trapezoid. The bottom of the dustproof curtain 24 overlaps the inclined side wall of the base 16 to form a good dust isolation effect, which can effectively prevent external dust or debris from falling on the base 16 and hindering the rotation of the electrical cabinet 1.

[0038] In this embodiment, the telescopic rod 19 includes a fixed rod 191 and a movable rod 192. The fixed rod 191 is installed at the bottom of the electrical cabinet 1. One end of the movable rod 192 is movably inserted into the fixed rod 191. The universal wheel 20 is installed at the other end of the movable rod 192. A spring 22 is provided at one end of the movable rod 192. The other end of the spring 22 is connected to the fixed rod 191. An arc-shaped limiting groove 21 is provided on the base 16. The maximum depth of the arc-shaped groove 21 is less than the radius of the outward wheel 20. The universal wheel 20 is movably installed in the limiting groove 21. When the electronic components in the electrical cabinet 1 are located at the front, The universal wheel 20 on one telescopic rod 19 is located in the arc groove 21. When the electrical cabinet 1 is pushed to rotate by external force, the universal wheel 20 located in the arc groove 21 rolls, and the corresponding telescopic rod 19 contracts, and the universal wheel 20 is separated from the arc groove 21; when the electrical cabinet 1 rotates 180°, the universal wheel 20 on the other telescopic rod 19 is located in the arc groove 21, and the control device in the electrical cabinet 1 rotates to the front. At this time, without the action of external force, the electrical cabinet 1 will not continue to rotate; the rotation of the electrical cabinet 1 is limited by the cooperation of the arc groove 21, the telescopic rod 19 and the universal wheel 20.

[0039] A control method for a control device, the method is as follows:

[0040] The temperature sensor 15 detects the temperature of the electrical cabinet 1 in real time and feeds the signal back to the controller;

[0041] When the temperature reaches the preset value, the controller controls the water cooler 31 and the water pump 32 to operate. At this time, the cooling water with a higher temperature in the cooling pipe 2 flows to the cooling water with a lower temperature in the heat exchange pipe 4, and the water pump 32 continuously transports the cooling water cooled by the water cooler 31 to the heat exchange box 5, thereby reducing the temperature of the cooling water in the cooling pipe 2.

[0042] When the temperature drops below a preset value, the controller controls the water pump water cooler 31 and the water pump 32 to stop running; preferably, the preset value is 35°C.

[0043] The above is only a preferred embodiment of the present invention. It should be pointed out that for those skilled in the art, several modifications and improvements can be made without departing from the structure of the present invention, which will not affect the effect of the implementation of the present invention and the practicality of the patent.

Claims

1. A control device for realizing the recycling of engine cold test, characterized in that: The invention comprises an electrical cabinet (1) and a rotating device, wherein a cabinet door (9) is rotatably provided on the electrical cabinet (1), and the electrical cabinet (1) is rotatably mounted above the rotating device. A support plate (13) is provided inside the electrical cabinet (1), and a heat exchange box (5) is provided on the support plate (13). A heat exchange tube (4) is provided inside the heat exchange box (5), and a cooling tube (2) is provided below the support plate (13), and both ends of the cooling tube (2) pass through the support plate (13) and are connected to both ends of the heat exchange tube (4) in a one-to-one correspondence. A cooling device is provided on one side of the heat exchange box (5), and the cooling device comprises a water cooler (31) and a water pump. (32), the water cooler (31) and the water pump (32) are both mounted on the support plate (13), the water outlet of the water cooler (31) is connected to the water inlet of the water pump (32), and the water outlet of the water pump (31) and the water inlet of the water cooler (31) are both connected to the heat exchange box (5), a temperature sensor (15) is provided on the inner wall of the electrical cabinet (1), and the temperature sensor (15) is mounted below the support plate (13), the water cooler (31) and the water pump (32) are both electrically connected to the temperature sensor (15) through a controller, and an integrated circuit socket (23) is provided in the electrical cabinet (1).

2. A control device for realizing engine cold test recycling according to claim 1, characterized in that: The cooling pipe (2) is S-shaped.

3. A control device for realizing the cycle utilization of engine cold test according to claim 2, characterized in that: The cooling tube (2) is provided with a plurality of heat sinks (8), and the heat sinks (8) are in a spiral structure.

4. A control device for realizing the cycle utilization of engine cold test according to claim 1, characterized in that: A ventilation hole is provided on the top of the electrical cabinet (1), an exhaust fan (6) is provided at the bottom of the ventilation hole, a dust cover (7) is provided on the top of the ventilation hole, and a plurality of exhaust slots (14) are provided on the dust cover (7).

5. A control device for realizing the cycle utilization of engine cold test according to claim 1, characterized in that: The cabinet door (9) is provided with a transparent window (10).

6. A control device for realizing engine cold test recycling according to claim 5, characterized in that: The electrical cabinet (1) and the cabinet door (9) are both provided with shutters (11); the shutters (11) corresponding to the cabinet door (9) are located below the transparent window (10); there are two shutters (11) corresponding to the electrical cabinet (1), and the two shutters (11) corresponding to the electrical cabinet (1) are respectively installed in the middle of both sides of the electrical cabinet (1).

7. A control device for realizing engine cold test recycling according to claim 1, characterized in that: The electrical cabinet (1) is provided with an exhaust fan (12), there are four exhaust fans (12) in total, and the four exhaust fans (12) are symmetrically installed in pairs on both sides of the electrical cabinet (1).

8. A control device for realizing engine cold test recycling according to claim 1, characterized in that: The rotating device comprises a base (16), a rotating shaft (17), two support rods (18), and two telescopic rods (19); the rotating shaft (17) is rotatably mounted on the base (16); the top of the rotating shaft (17) is connected to the bottom of the electrical cabinet (1); one end of the two support rods (18) and the telescopic rod (19) is provided with a universal wheel (20); the two support rods (18) and the telescopic rod (19) are mounted on the bottom of the electrical cabinet (1); the two support rods (18) and the telescopic rod (19) are arranged at intervals, and the interval angle between adjacent support rods (18) and telescopic rods (19) is 90°.

9. A control device for realizing engine cold test recycling according to claim 1, characterized in that: The telescopic rod (19) comprises a fixed rod (191) and a movable rod (192); the fixed rod (191) is installed at the bottom of the electrical cabinet (1); one end of the movable rod (192) is movably inserted into the fixed rod (191); the universal wheel (20) is installed at the other end of the movable rod (192); one end of the movable rod (192) is provided with a spring (22); the other end of the spring (22) is connected to the fixed rod (191); an arc-shaped limiting groove (21) is provided on the base (16); and the universal wheel (20) is movably installed in the limiting groove (21).

10. A control method of the control device according to claim 1, characterized in that: The method is as follows: The temperature sensor (15) detects the temperature of the electrical cabinet (1) in real time and feeds back the signal to the controller; When the temperature reaches a preset value, the controller controls the water cooler (31) and the water pump (32) to operate. At this time, the cooling water with a higher temperature in the cooling pipe (2) flows to the cooling water with a lower temperature in the heat exchange pipe (4), and the water pump (32) continuously transports the cooling water cooled by the water cooler (31) to the heat exchange box (5), thereby reducing the temperature of the cooling water in the cooling pipe (2); When the temperature drops below a preset value, the controller controls the water pump water cooler (31) and the water pump (32) to stop running.

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