CN216199530U - Cooling mechanism for hydraulic oil in hydraulic system - Google Patents

Abstract

The utility model discloses a cooling mechanism of hydraulic oil in a hydraulic system, which comprises an oil tank body, a radiator, a filtering assembly, an air cooling assembly and a water cooling assembly, wherein the radiator comprises a first transfer bin, a second transfer bin and a heat dissipation cylinder, the filtering assembly comprises a filtering bin and a filter screen, the air cooling assembly comprises a mounting plate, a rotary drum and a rotary motor, and the water cooling assembly comprises a water tank, a pumping motor, a reciprocating screw rod, a piston plate and a heat dissipation pipe. So that the hydraulic oil flowing in the hydraulic system is relatively clean.

Description

A cooling mechanism for hydraulic oil in a hydraulic system

technical field

The utility model relates to the technical field of auxiliary equipment of hydraulic systems, in particular to a cooling mechanism for hydraulic oil in a hydraulic system.

Background technique

The hydraulic system uses the oil tank as a transfer station. The oil tank is filled with hydraulic oil, which provides power to the hydraulic system through the flow of hydraulic oil. The hydraulic oil is the "blood" in the hydraulic system, and its quality directly affects whether the entire hydraulic system can be normal or not. run.

When the working environment temperature of the hydraulic system is high and the working intensity of the hydraulic system is high, the temperature of the hydraulic oil will increase. The mechanical efficiency of the hydraulic system is reduced. In addition, under the action of high temperature and high pressure, the hydraulic oil is easy to react with moisture, air, copper, iron and other media to generate impurities such as oxides. The impurities will wear all moving parts and cause the machine to malfunction. .

Although there are some devices for cooling the hydraulic oil in the hydraulic system in the prior art, for example, the Chinese patent with the patent application number: CN201620484018.8 discloses a cooling device for the hydraulic system, which drives the cooling water through a chiller with a pump. The cooling of hydraulic oil is carried out by flowing; Patent Publication No.: CN201720014497.1 discloses a cooling device for a hydraulic system, which performs air-cooled heat exchange cooling through a vortex cooler.

The above two patents respectively use water cooling and air cooling to cool the hydraulic oil, the cooling method is single, and the cooling effect is not good.

Utility model content

In order to solve the above problems, the present invention provides a cooling mechanism for hydraulic oil in a hydraulic system, which is achieved by the following technical solutions.

A cooling mechanism for hydraulic oil in a hydraulic system includes an oil tank body, an oil outlet pipe is fixedly connected to the lower right side of the oil tank body, the oil outlet pipe is connected with an oil inlet of the hydraulic system, and an inlet pipe is fixedly connected to the top of the oil tank body. Oil pipes, also including radiators, filter components, air-cooled components and water-cooled components;

The radiator includes a first transfer bin, a second transfer bin and a heat sink; the first transfer bin and the second transfer bin are arranged at intervals up and down, and the top of the first transfer bin is connected to the oil outlet of the hydraulic system through an oil return pipe , the bottom of the second transfer bin is fixed with a communicating pipe, the upper and lower ends of the cooling cylinder are symmetrically fixed with flow tubes, and the heads of the upper and lower flow tubes are respectively connected with the first transfer bin and the second transfer bin, and the heat dissipation One set of cylinders is arranged on the left and right sides of the first transfer bin and the second transfer bin;

The filter assembly is arranged between the communication pipe and the oil inlet pipe.

Further, the filter assembly includes a filter chamber and a filter screen, the top plate of the filter chamber is connected with the bottom of the communication pipe, the bottom plate of the filter chamber is connected with the top of the oil inlet pipe, and the filter screen is fixed on the upper right corner of the filter chamber. Between the lower left corner and the lower left corner of the filter bin, a waste cleaning pipe is fixedly connected, and the head of the waste cleaning pipe is threadedly connected with a cover body.

Further, the air-cooling assembly includes a mounting plate, a rotating drum and a rotating motor; the mounting plate is fixedly connected between the first transfer bin and the second transfer bin, the rotating drum is rotatably connected in the mounting plate, and the rotating drum is There are four rectangular arrays on the mounting plate, a fan blade group is fixed in each drum, and the rotating motor drives each drum to rotate.

Further, a driven gear ring is fixed on the left outer ring of the rotating drum, a first hood is fixed on the right side of the mounting plate, the rotating motor is fixed in the first hood, and the rotating motor is fixed in the first hood. There is a first output shaft horizontally to the left, the first output shaft is rotatably connected to the center of the mounting plate, the head of the first output shaft is fixed with a driving gear, and each driven gear ring meshes with it on the outside of the driving gear .

Further, the water cooling assembly includes a water tank, a pumping motor, a reciprocating screw rod, a piston plate and a heat dissipation pipe; the water tank is symmetrically arranged on the left and right sides of the radiator, and a second hood is fixed on the top of the water tank. The pumping motor is fixed in the second hood, the pumping motor is provided with a second vertical downward output shaft, the second output shaft is rotatably connected to the top plate of the water tank, and the bottom of the reciprocating screw rod is connected to the water tank. The bottom plate is rotatably connected, the top of the reciprocating screw rod is connected with the second output shaft through a coupling, the piston plate is sealed and slidably connected in the water tank, the center of the piston plate is fixed with a reciprocating threaded sleeve, and the reciprocating screw rod is engaged in In the reciprocating threaded sleeve, guide rods are fixedly connected to the inner walls of the left and right side plates of the water tank, the piston plate is slidably connected with the guide rods, the heat dissipation pipe is arranged in the heat dissipation cylinder, and the upper and lower ends of the heat dissipation pipe are fixedly connected with circulation pipes. The heads of the two circulation pipes are connected above and below the side plates of the corresponding water tanks.

Further, heat dissipation fins are uniformly fixed on the circulation pipe along its length direction.

Further, the heat dissipation pipes, the circulation pipes, the heat dissipation fins and the heat dissipation cylinders are all made of red copper.

Further, the heat dissipation pipe is helical.

The beneficial effect of the utility model is that the heat exchange between the hydraulic oil and the external environment is carried out through the radiator, and the air flow speed at the position of the heat exchanger is accelerated through the air-cooled component, that is, the air-cooled cooling is performed through the air-cooled component, and the water-cooled component is used for cooling. Water cooling and the cooperation of various cooling methods can make the cooling effect of the hydraulic oil better, and a filter assembly is also provided, through which the impurities in the hydraulic oil can be filtered, so that the hydraulic oil flowing in the hydraulic system is relatively clean.

Description of drawings

In order to illustrate the technical solutions of the present invention more clearly, the following will briefly introduce the accompanying drawings used in the description of the specific implementation manner. Obviously, the accompanying drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, other drawings can also be obtained from these drawings without creative effort.

Fig. 1: the schematic diagram of the cooling mechanism of hydraulic oil in a kind of hydraulic system of the present utility model;

Fig. 2: the schematic diagram of the filter assembly of the present invention;

Figure 3: The combined schematic diagram of the radiator, the air-cooled component and the water-cooled component of the present invention;

Figure 4: Schematic diagram of the air-cooled assembly of the present invention;

Fig. 5: The installation schematic diagram of the rotating electrical machine of the utility model;

Figure 6: Internal schematic diagram of the water tank of the present invention;

Figure 7: The internal schematic diagram of the cooling cylinder of the present invention.

The reference numbers are as follows:

1- Fuel tank body, 11- Oil outlet pipe, 12- Oil inlet pipe, 21- First transfer bin, 22- Second transfer bin, 23- Radiator cylinder, 24- Oil return pipe, 25- Connecting pipe, 26- Flow pipe, 3 -Filter assembly, 31-Filter bin, 32-Filter screen, 33-Waste removal pipe, 34-Cover body, 4-Air cooling assembly, 41-Installation plate, 42-Rotating drum, 43-Rotating motor, 44-Fan blade Group, 45- driven gear ring, 46- first hood, 47- first output shaft, 48- driving gear, 51- water tank, 52- pumping motor, 53- reciprocating screw, 54- piston plate, 55 - Cooling pipe, 56- Second hood, 57- Second output shaft, 58- Coupling, 59- Reciprocating threaded sleeve, 510- Guide rod, 511- Circulation pipe, 512- Cooling fin.

Detailed ways

The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the implementations. example. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the protection scope of the present invention.

As shown in Figures 1-7, a cooling mechanism for hydraulic oil in a hydraulic system includes an oil tank body 1. An oil outlet pipe 11 is fixedly connected to the lower right side of the oil tank main body 1, and the oil outlet pipe 11 is connected to the oil inlet of the hydraulic system. The top of the oil tank body 1 is fixed with an oil inlet pipe 12, and also includes a radiator, a filter assembly 3, an air cooling assembly 4 and a water cooling assembly;

The radiator includes a first transfer bin 21, a second transfer bin 22 and a heat sink 23; the first transfer bin 21 and the second transfer bin 22 are arranged at intervals up and down, and the top of the first transfer bin 21 is connected to the outlet of the hydraulic system through the oil return pipe 24. The oil port is connected, the bottom of the second transfer bin 22 is fixed with a communication pipe 25, the upper and lower ends of the radiating cylinder 23 are symmetrically fixed with flow pipes 26, and the heads of the upper and lower flow pipes 26 are respectively connected with the first transfer bin 21 and the first transfer bin 21. The second transfer bins 22 are connected, and a set of cooling cylinders 23 are provided on the left and right sides of the first transfer bin 21 and the second transfer bin 22;

The filter assembly 3 is provided between the communication pipe 25 and the oil inlet pipe 12 .

Preferably, the filter assembly 3 includes a filter chamber 31 and a filter screen 32 , the top plate of the filter chamber 31 is connected to the bottom of the communication pipe 25 , the bottom plate of the filter chamber 31 is connected to the top of the oil inlet pipe 12 , and the filter screen 32 is fixed on the filter chamber 31 . Between the upper right corner and the lower left corner of the filter box 31, a waste cleaning pipe 33 is fixedly connected to the lower left side of the filter chamber 31, and a cover body 34 is threadedly connected to the head of the waste cleaning pipe 33.

Preferably, the air-cooling assembly 4 includes a mounting plate 41 , a drum 42 and a rotating motor 43 ; the mounting plate 41 is fixedly connected between the first transfer bin 21 and the second transfer bin 22 , and the drum 42 is rotatably connected in the mounting plate 41 There are four rotating cylinders 42 in a rectangular array on the mounting plate 41 , each rotating cylinder 42 is fixed with a fan blade group 44 , and the rotating motor 43 drives each rotating cylinder 42 to rotate.

Preferably, the driven gear ring 45 is fixedly connected to the left outer ring of the rotating drum 42 , the first hood 46 is fixedly connected to the right side of the mounting plate 41 , the rotating motor 43 is fixedly connected in the first hood 46 , and the rotating motor 43 is provided with a first output shaft 47 horizontally to the left, the first output shaft 47 is rotatably connected to the center of the mounting plate 41, the head of the first output shaft 47 is fixed with a driving gear 48, and each driven gear ring 45 is in the driving position. The outer side of the gear 48 meshes therewith.

Preferably, the water cooling assembly includes a water tank 51, a pumping motor 52, a reciprocating screw 53, a piston plate 54 and a heat dissipation pipe 55; the water tank 51 is symmetrically arranged on the left and right sides of the radiator, and the top of the water tank 51 is fixed with a second hood 56. The pumping motor 52 is fixed in the second hood 56. The pumping motor 52 is provided with a second output shaft 57 that is vertically downward. The second output shaft 57 is rotatably connected to the top plate of the water tank 51. The reciprocating screw rod The bottom of 53 is rotatably connected with the bottom plate of the water tank 51, the top of the reciprocating screw 53 is connected with the second output shaft 57 through the coupling 58, the piston plate 54 is sealed and slidably connected in the water tank 51, and the center of the piston plate 54 is fixed with a reciprocating The threaded sleeve 59, the reciprocating screw rod 53 is engaged in the reciprocating threaded sleeve 59, the inner walls of the left and right side plates of the water tank 51 are fixedly connected with a guide rod 510, the piston plate 54 is slidably connected with the guide rod 510, and the heat dissipation pipe 55 is arranged in the heat dissipation cylinder 23, The upper and lower ends of the heat dissipation pipe 55 are fixedly connected with circulation pipes 511 , and the heads of the upper and lower circulation pipes 511 are connected to the upper and lower sides of the corresponding side plates of the water tank 51 .

Preferably, heat dissipation fins 512 are uniformly fixed on the circulation pipe 511 along the length direction thereof.

Preferably, the heat dissipation pipe 55 , the circulation pipe 511 , the heat dissipation fins 512 and the heat dissipation cylinder 23 are all made of red copper.

Preferably, the heat dissipation pipe 55 is helical.

A specific embodiment of the present utility model is:

The oil tank body 1 acts as the transfer center of the hydraulic oil. When the hydraulic system is working, the hydraulic oil inside it enters the radiator through the oil outlet and the oil return pipe 24, and enters the filter assembly 3 through the communication pipe 25, and then enters the oil inlet pipe 12. In the oil tank body 1, the hydraulic oil in the oil tank body 1 is continuously used by the hydraulic system through the oil outlet pipe 11.

The radiator enables the hydraulic pressure to exchange heat with the external environment, thereby exchanging heat and cooling the hydraulic oil. At the same time, the hydraulic oil is cooled by the cooperation of the air-cooled component 4 and the water-cooled component. So that the hydraulic oil has a good cooling effect.

The high-temperature hydraulic oil in the return pipe enters the first transfer bin 21, then the upper flow pipe 26 enters the radiator 23, and then enters the second transfer bin 22 from the lower flow pipe 26. When the hydraulic oil flows in the radiator 23, The hydraulic oil exchanges heat with the external environment through the cylinder wall of the cooling cylinder 23, thereby cooling it down.

When the rotating motor 43 is working, it drives the first output shaft 47 and the driving gear 48 to rotate, and the driving gear 48 drives the driven gear rings 45 meshed with it to rotate synchronously, and then each rotating drum 42 and the fan blade group 44 in it rotate, thereby making The air flow speed at the position of the heat pipe 55 is accelerated, the effect of heat dissipation is improved, and the cooling of the hydraulic oil is accelerated.

Cooling water is contained in the water tank 51. When the pumping motor 52 works, the second output shaft 57 is driven to rotate. The second output shaft 57 drives the reciprocating screw rod 53 to rotate through the coupling 58. Since the piston plate 54 is limited by the guide rod 510 , and the piston plate 54 is engaged with the reciprocating screw rod 53 through the reciprocating screw sleeve 59. When the reciprocating screw rod 53 rotates, the piston plate 54 reciprocates up and down, so that the cooling water circulates between the water tank 51, the circulation pipe 511 and the heat dissipation pipe 55. flow.

The cooling water flowing in the circulation pipe 511 absorbs the heat in the hydraulic oil, thereby cooling and cooling the hydraulic oil. Endothermic effect.

The preferred embodiments of the present invention disclosed above are only used to help illustrate the present invention. The preferred embodiments do not exhaustively describe all the details, nor do they limit the invention to specific embodiments only. Obviously, many modifications and variations are possible in light of the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principle and practical application of the present invention, so that those skilled in the art can well understand and utilize the present invention. The present invention is limited only by the claims and their full scope and equivalents.

Claims (8)

1. A cooling mechanism for hydraulic oil in a hydraulic system, comprising an oil tank body, an oil outlet pipe is fixedly connected to the lower right side of the oil tank body, the oil outlet pipe is connected with the oil inlet of the hydraulic system, and the top of the oil tank body is fixedly connected There is an oil inlet pipe, which is characterized in that: it also includes a radiator, a filter assembly, an air-cooled assembly and a water-cooled assembly; The radiator includes a first transfer bin, a second transfer bin and a heat sink; the first transfer bin and the second transfer bin are arranged at intervals up and down, and the top of the first transfer bin is connected to the oil outlet of the hydraulic system through an oil return pipe , the bottom of the second transfer bin is fixed with a communicating pipe, the upper and lower ends of the cooling cylinder are symmetrically fixed with flow tubes, and the heads of the upper and lower flow tubes are respectively connected with the first transfer bin and the second transfer bin, and the heat dissipation One set of cylinders is arranged on the left and right sides of the first transfer bin and the second transfer bin; The filter assembly is arranged between the communication pipe and the oil inlet pipe. 2 . The cooling mechanism for hydraulic oil in a hydraulic system according to claim 1 , wherein the filter assembly comprises a filter chamber and a filter screen, the top plate of the filter chamber is connected to the bottom of the communication pipe, and the filter chamber is 2. 3 . The bottom plate of the filter box is connected with the top of the oil inlet pipe, the filter screen is fixed between the upper right corner and the lower left corner of the filter box, and the lower left side of the filter box is fixed with a waste removal pipe, and the head of the waste removal pipe is threadedly connected Covered. 3 . The cooling mechanism for hydraulic oil in a hydraulic system according to claim 2 , wherein the air cooling assembly comprises a mounting plate, a rotating drum and a rotating motor; the mounting plate is fixedly connected to the first transfer bin. 4 . and the second transfer bin, the rotating drum is rotatably connected in the mounting plate, there are four rotating drums in a rectangular array on the mounting plate, a fan blade group is fixed in each rotating drum, and the rotating motor drives each rotating drum turn. 4 . The cooling mechanism for hydraulic oil in a hydraulic system according to claim 3 , wherein a driven gear ring is fixed on the left outer ring of the rotating drum, and a driven gear ring is fixed on the right side of the mounting plate. 5 . There is a first hood, the rotating motor is fixed in the first hood, the rotating motor is provided with a first output shaft horizontally to the left, the first output shaft is rotatably connected to the center of the mounting plate, and the first output shaft The head of the drive gear is fixedly connected with a drive gear, and each driven gear ring meshes with the drive gear on the outside thereof. 5 . The cooling mechanism for hydraulic oil in a hydraulic system according to claim 4 , wherein the water cooling assembly comprises a water tank, a pumping motor, a reciprocating screw, a piston plate and a heat dissipation pipe; The left and right sides of the water tank are symmetrically arranged, the top of the water tank is fixed with a second cover, the pumping motor is fixed in the second cover, and the pumping motor is provided with a second vertical downward output shaft. The second output shaft is rotatably connected to the top plate of the water tank, the bottom of the reciprocating screw is rotatably connected to the bottom plate of the water tank, the top of the reciprocating screw is connected to the second output shaft through a coupling, and the piston plate is sealed and slidably connected to In the water tank, the center of the piston plate is fixed with a reciprocating thread sleeve, the reciprocating screw rod is engaged in the reciprocating thread sleeve, the inner walls of the left and right side plates of the water tank are fixed with guide rods, the piston plate is slidably connected with the guide rod, the The heat dissipation pipe is arranged in the heat dissipation cylinder, the upper and lower ends of the heat dissipation pipe are fixed with circulation pipes, and the heads of the upper and lower circulation pipes are connected with the upper and lower sides of the side plates of the corresponding water tank. 6 . The cooling mechanism for hydraulic oil in a hydraulic system according to claim 5 , wherein radiating fins are uniformly fixed on the circulation pipe along its length direction. 7 . 7 . The cooling mechanism for hydraulic oil in a hydraulic system according to claim 6 , wherein the radiating pipe, the circulating pipe, the radiating fins and the radiating cylinder are all made of red copper. 8 . 8 . The cooling mechanism for hydraulic oil in a hydraulic system according to claim 5 , wherein the cooling pipe is helical. 9 .

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