A device for cooling oil temperature

Abstract

The utility model discloses a device for cooling oil temperature, comprising a gear box, an oil outlet pipe and an oil return pipe connected to the side of the gear box, a heater connected to the other end of the oil outlet pipe, a cold heat exchanger connected to the other end of the oil return pipe, a driving pump installed on the oil outlet pipe, a connecting pipe connected between the cold heat exchanger and the heater, and a cooler. The utility model can effectively cool the oil in the gear box to keep the oil temperature within a certain range.

Description

Technical Field

[0001] The utility model relates to the technical field of cooling equipment, and more specifically to a device for cooling oil temperature. Background Art

[0002] When some mechanical equipment that relies on lubricating oil for lubrication and cooling works under rated conditions, the oil temperature rises too high due to the lack of self-cooling. When the lubricating oil heats up, the friction factor and wear of the equipment will increase, and the lubrication effect will also be reduced. In this case, the equipment is often forced to shut down and cool down before it can be restarted. Utility Model Content

[0003] The purpose of the utility model is to overcome the above-mentioned deficiencies of the prior art and provide a device for cooling oil temperature.

[0004] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0005] The utility model discloses a device for cooling oil temperature, comprising a gear box, an oil outlet pipe and an oil return pipe are connected to the side of the gear box, the other end of the oil outlet pipe is connected to a heater, the other end of the oil return pipe is connected to a cold heat exchanger, a driving pump is installed on the oil outlet pipe, a connecting pipe is connected between the cold heat exchanger and the heater, and also comprises a cooler, a hot cylinder and a cold cylinder are respectively arranged on two sides of the cooler, an end of the hot cylinder away from the cooler is connected to a connecting pipe one, the other end of the connecting pipe one is connected to the side of the cooler, an end of the cold cylinder away from the cooler is connected to a connecting pipe two, the other end of the connecting pipe two is connected to the side of the cooler, the connecting pipe one and the connecting pipe two are respectively arranged through the heater and the cold heat exchanger, a heat recovery device is installed on the connecting pipe one, a crankshaft is rotatably arranged in the cooler, a hot push piston and a cold push piston are connected to the crankshaft driving, the hot push piston is located in the hot cylinder, and the cold push piston is located in the cold cylinder.

[0006] Furthermore, the driving pump is a shaft head pump.

[0007] Furthermore, an oil filter is provided on the oil return pipe.

[0008] Furthermore, the crankshaft is drivingly connected to a generator.

[0009] Furthermore, a speed increaser is provided between the crankshaft and the generator.

[0010] The beneficial effect of the utility model is that the heater and the cold heat exchanger are directly driven by thermal energy to absorb the heat of the oil, and then the heat is discharged to the outside through the cooler, so that the oil is effectively cooled, so that the oil temperature in the gear box is maintained within the required range. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1This is a schematic diagram of the structure of a detection device for producing a large circular knitting machine needle cylinder in this embodiment;

[0012] Figure 2 The working state of this embodiment is shown as follows: Figure 1 ;

[0013] Figure 3 The working state of this embodiment is shown as follows: Figure 2 ;

[0014] Figure 4 The working state of this embodiment is shown as follows: Figure 3 ;

[0015] Figure 5 The working state of this embodiment is shown as follows: Figure 4 .

[0016] Figure numerals: 1. gearbox; 2. oil outlet; 3. oil return port; 4. oil outlet pipe; 5. oil return pipe; 6. drive pump; 7. heater; 8. cold heat exchanger; 9. connecting pipe; 10. cooler; 11. hot cylinder; 12. connecting pipe one; 13. heat recovery device; 14. cold cylinder; 15. connecting pipe two; 16. cold recovery device; 17. oil filter; 18. speed increaser; 19. generator; 20. crankshaft; 21. hot push piston; 22. cold push piston. DETAILED DESCRIPTION

[0017] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0018] As attached Figure 1As shown, a device for cooling oil temperature includes a gear box 1, an oil outlet 2 and an oil return port 3 are opened on one side of the gear box 1, an oil outlet pipe 4 and an oil return pipe 5 are connected to the oil outlet 2 and the oil return port 3 respectively, the other end of the oil outlet pipe 4 is connected to a heater 7, the other end of the oil return pipe 5 is connected to a cold heat exchanger 8, a driving pump 6 is installed on the oil outlet pipe 4, a connecting pipe 9 is connected between the cold heat exchanger 8 and the heater 7, and a cooler 10 is also included. The cooler 10 is a cubic structure, and two relatively vertical sides of the cooler 10 are respectively provided with a hot cylinder 11 and a cold air cylinder 12. Cylinder 14, so that the hot cylinder 11 and the cold cylinder 14 are perpendicular to each other, the end of the hot cylinder 11 away from the cooler 10 is connected to the connecting pipe 12, and the other end of the connecting pipe 12 is connected to the side of the cooler 10, the end of the cold cylinder 14 away from the cooler 10 is connected to the connecting pipe 2 15, and the other end of the connecting pipe 2 15 is connected to the side of the cooler 10, the side where the connecting pipe 12 is connected to the cooler 10 is the same side as the side where the connecting pipe 2 15 is connected to the cooler 10, and the connected side is not the side where the hot cylinder 11 and the cold cylinder 14 are installed. The connecting pipe 12 and the connecting pipe 2 15 are respectively arranged to pass through the heater 7 and the cold heat exchanger 8. A heat recovery device 13 is installed on the connecting pipe 12. The heat recovery device 13 is located between the heater 7 and the cooler 10. The cold recovery device 16 is located between the cold heat exchanger 8 and the cooler 10. A crankshaft 20 is rotatably arranged in the cooler 10. The crankshaft 20 is arranged perpendicular to the hot cylinder 11 and the cold cylinder 14. A hot push piston 21 and a cold push piston 22 are connected to the crankshaft 20 through a connecting rod drive. The hot push piston 21 is located in the hot cylinder 11, and the cold push piston 22 is located in the cold cylinder 14.

[0019] After the oil in the gear box 1 is pumped out by the driving pump 6, it first flows through the heater 7, where the oil heat is absorbed by the heater 7. The oil then flows through the cold heat exchanger 8 for a second cooling, and then returns to the gear box 1 after cooling.

[0020] like Figure 2 , Figure 3 As shown, the cavity in the hot cylinder 11 located on the side of the hot push piston 21 away from the crankshaft 20 is the hot cavity, and the cavity in the cold cylinder 14 located on the side of the cold push piston 22 away from the cooler 10 is the cold cavity. The hot push piston 21 and the cold push piston 22 move into the hot cylinder 11 and the cold cylinder 14 respectively, and the volumes of the hot cavity and the cold cavity are reduced at the same time. When part of the gas in the cold cavity passes through the cold recovery device 16, it is heated to the intermediate temperature by the filler therein, and then enters the cooler 10. The gas in the hot cavity passes through the heat recovery device 13, and is cooled to the intermediate temperature by the filler in the heat recovery device 13, and then enters the cooler 10. In this process, since the volumes of the cold cavity and the hot cavity are reduced at the same time, the average temperature and pressure of the gas inside the entire machine do not change much, and the gas absorbs heat in the cold heat exchanger 8, producing a cooling effect.

[0021] like Figure 3 , Figure 4 As shown, the cold push piston 22 continues to move into the cold cylinder 14, and the hot push piston 21 moves toward the cooler 10, the hot cavity increases, and the cold cavity decreases. The gas remaining in the cold cavity is roughly the same as the above. Part of the gas in the cooler 10 is pushed into the heat recovery device 13 by the hot push piston 21, and enters the hot cavity after being heated to a high temperature by the filler in the heat recovery device 13. In this process, since the volume of the cold cavity decreases and the volume of the hot cavity increases, the working fluid gradually moves from the low temperature zone to the high temperature zone, the average temperature of the gas inside increases, the pressure increases, and the working fluid absorbs heat through the heater 7 and the cold heat exchanger 8 to achieve cooling of the oil.

[0022] like Figure 4 , Figure 5 As shown, the hot push piston 21 and the cold push piston 22 move toward the cooler 10, and the volumes of the cold cavity and the hot cavity increase at the same time. Part of the gas in the cooler 10 is cooled by the filler through the cold recovery device 16 and then enters the cold cavity. Part of the gas in the cooler 10 is heated to a temperature close to the temperature in the hot cavity when passing through the heat recovery device 13 and then enters the hot cavity. In this process, the internal average temperature does not change much, so the pressure does not change much, there is a small amount of compression, and correspondingly, heat is discharged in the cooler 10.

[0023] like Figure 5 , Figure 2 As shown, the cold push piston 22 continues to move toward the cooler 10, while the hot push piston 21 moves into the hot cylinder 11, the cold cavity increases to the maximum, while the hot cavity decreases. Part of the gas in the hot cavity releases heat to the filler when passing through the heat recovery device 13, the temperature decreases, and enters the cooler 10. At the same time, part of the gas in the cooler 10 is cooled by the filler when passing through the cold recovery device 16 and enters the cold cavity. In this process, the working fluid gradually moves from the high temperature zone to the low temperature zone, the average temperature of the internal gas decreases, and the pressure decreases. In this process, the heater 7 and the cold heat exchanger 8 will continue to absorb heat to reduce the temperature of the oil.

[0024] The overall structure constitutes a VM refrigerator, which uses the heat energy of lubricating oil as energy and relies on the thermal expansion and contraction principle of the working fluid therein to drive the hot push piston 21, the cold push piston 22, and the crankshaft 20 to move.

[0025] Furthermore, the driving pump 6 is a shaft head pump, and the driving pump 6 operates with the shaft of the gear box 1 as a power source.

[0026] Furthermore, an oil filter 17 is provided on the oil return pipe 5 , and impurities such as iron slag in the oil are filtered out by the oil filter 17 , and the filtered oil is returned to the gear box 1 for continued use.

[0027] Furthermore, the crankshaft 20 is connected to the generator 19, and a speed increaser 18 is provided between the crankshaft 20 and the generator 19. The speed increaser 18 and the crankshaft 20 are connected via a coupling, and the speed increaser 18 and the generator 19 are connected via a coupling. The heat energy in the oil is converted into kinetic energy for the rotation of the crankshaft 20, and the kinetic energy drives the generator 19 to generate electricity, and the generated electricity can be stored to power the sensors of some monitoring equipment.

[0028] The above is only a preferred embodiment of the present invention. The protection scope of the present invention is not limited to the above embodiments. All technical solutions under the concept of the present invention belong to the protection scope of the present invention. It should be pointed out that for ordinary technicians in this technical field, some improvements and modifications without departing from the principle of the present invention should also be regarded as the protection scope of the present invention.

Claims

1. A device for cooling oil temperature, characterized in that: The gearbox (1) comprises a gearbox (1), wherein an oil outlet pipe (4) and an oil return pipe (5) are connected to the side of the gearbox (1), the other end of the oil outlet pipe (4) is connected to a heater (7), the other end of the oil return pipe (5) is connected to a cold heat exchanger (8), a driving pump (6) is installed on the oil outlet pipe (4), a connecting pipe (9) is connected between the cold heat exchanger (8) and the heater (7), and a cooler (10) is also included, wherein a hot cylinder (11) and a cold cylinder (14) are respectively arranged on two sides of the cooler (10), the end of the hot cylinder (11) away from the cooler (10) is connected to a connecting pipe (12), and the other end of the connecting pipe (12) is connected to the cooler (10). The cold cylinder (14) is connected to the side of the cooler (10); one end of the cold cylinder (14) away from the cooler (10) is connected to a connecting pipe (15); the other end of the connecting pipe (15) is connected to the side of the cooler (10); the connecting pipe (12) and the connecting pipe (15) are respectively arranged to pass through the heater (7) and the cold heat exchanger (8); a heat recovery device (13) is installed on the connecting pipe (12); a crankshaft (20) is rotatably arranged in the cooler (10); the crankshaft (20) is drivingly connected to a hot push piston (21) and a cold push piston (22); the hot push piston (21) is located in the hot cylinder (11), and the cold push piston (22) is located in the cold cylinder (14).

2. The device for cooling oil temperature according to claim 1, characterized in that: The driving pump (6) is a shaft head pump.

3. The device for cooling oil temperature according to claim 1, characterized in that: The oil return pipe (5) is provided with an oil filter (17).

4. The device for cooling oil temperature according to claim 1, characterized in that: The crankshaft (20) is drivingly connected to a generator (19).

5. The device for cooling oil temperature according to claim 4, characterized in that: A speed increaser (18) is provided between the crankshaft (20) and the generator (19).

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