Hydraulic pump with protective structure

Abstract

The utility model discloses a hydraulic pump with a protective structure, which comprises a hydraulic pump, a cooling mechanism is mounted at an oil outlet pipe on the surface of the hydraulic pump, and a detection mechanism is arranged on the surface of the cooling mechanism; the cooling mechanism comprises a connecting pipe, a cooling pipeline is fixedly embedded in the inner wall of the connecting pipe, a connecting piece is fixed to the surface of the connecting pipe, a water tank is fixed to the top of the connecting piece, a water pump is fixed to the surface of the water tank, a semiconductor chilling plate is fixed to the surface of the water tank, and a first cooling fin is fixed to the surface of the semiconductor chilling plate. Second cooling fins are fixed to the surface of the connecting pipe, and a connector is arranged on one side of the connecting pipe. The detection mechanism comprises a mounting shell which is fixed to the surface of the water tank. According to the hydraulic pump, cooling water can be cooled, the cooling effect on hydraulic oil can be improved, and the problem that due to the fact that the cooling effect on an existing hydraulic pump is poor, the hydraulic pump is prone to being damaged by backflow hydraulic oil is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of hydraulic pumps, in particular to a hydraulic pump with a protective structure. Background Art

[0002] The hydraulic pump is the power element of the hydraulic system. It is driven by an engine or an electric motor, sucking oil from the hydraulic oil tank, forming pressure oil and discharging it to the actuator. When the hydraulic pump is working, it forms pressure on the oil, thereby increasing the internal energy of the oil. When working, it will cause the oil temperature to rise. When the oil flows back into the hydraulic pump, the temperature will also rise, which can easily cause damage to the hydraulic pump. Therefore, the hydraulic pump needs to be protected to prevent the oil temperature of the hydraulic pump from rising.

[0003] A Chinese patent with publication number CN213511157U was searched and found to have a hydraulic pump with a protective structure.

[0004] The utility model comprises a hydraulic pump body, an oil outlet of the hydraulic pump body is connected with an oil outlet pipe, an oil inlet of the hydraulic pump body is connected with an oil inlet pipe, a plurality of heat conducting plates are fixedly connected at equal distances on the inner wall of the oil outlet pipe, the inner diameter of the heat conducting plates is smaller than the inner diameter of the oil outlet pipe, a housing fixedly connected to the hydraulic pump body is arranged outside the oil outlet pipe, a water storage cavity is formed by the gap between the housing and the oil outlet pipe, a water tank is fixedly connected to the hydraulic pump body, a water pump is fixedly connected to the water tank, a water outlet end of the water pump is connected with a water inlet pipe, the water inlet pipe is connected with the water storage cavity, the lower end of the water storage cavity is connected with the water tank through the water outlet pipe, and the water inlet end of the water pump is connected with the water tank through the conducting pipe. The utility model has the function of preventing the oil temperature of the hydraulic pump from being too high and protecting the hydraulic pump.

[0005] However, this patent still has the following problems: the device cools the oil outlet pipe by injecting cooling water in the water tank into the shell, but since the water tank in the device cannot achieve a cooling effect, after the hydraulic pump has been used for a long time, the cooling water in the shell will continuously absorb heat and flow back into the water tank, thereby causing the overall temperature of the cooling water inside the water tank to rise, thereby reducing the cooling effect of the device, and the refluxed hydraulic oil will still cause the hydraulic pump to heat up, resulting in a poor protective effect. Utility Model Content

[0006] The purpose of the utility model is to provide a hydraulic pump with a protective structure, which can cool the cooling water and improve the cooling effect on the hydraulic oil, thereby solving the problem that the hydraulic pump is easily damaged by the refluxed hydraulic oil due to the poor cooling effect on the current hydraulic pump.

[0007] To achieve the above object, the utility model provides the following technical solution: a hydraulic pump with a protective structure, comprising a hydraulic pump, a cooling mechanism is installed at the oil outlet pipe on the surface of the hydraulic pump, and a detection mechanism is arranged on the surface of the cooling mechanism;

[0008] The cooling mechanism comprises a connecting pipe, a cooling pipeline is embedded and fixed on the inner wall of the connecting pipe, a connecting piece is fixed on the surface of the connecting pipe, a water tank is fixed on the top of the connecting piece, a water pump is fixed on the surface of the water tank, a semiconductor cooling sheet is fixed on the surface of the water tank, a first heat sink is fixed on the surface of the semiconductor cooling sheet, a second heat sink is fixed on the surface of the connecting pipe, and a connector is provided on one side of the connecting pipe;

[0009] The detection mechanism comprises a mounting shell, the mounting shell is fixed to the surface of the water tank, a memory alloy wire is fixed to the surface of the mounting shell, a detection head is fixed to the surface of the memory alloy wire, and a pressure sensor is fixed to the inner wall of the mounting shell.

[0010] As a preferred embodiment of the hydraulic pump with a protective structure of the utility model, the cooling pipeline is arranged in a spiral structure.

[0011] As a preferred embodiment of the hydraulic pump with a protective structure of the utility model, the connecting pipe, cooling pipeline, water tank and mounting shell are all made of copper-aluminum alloy.

[0012] As a preferred embodiment of the hydraulic pump with a protective structure of the utility model, the connecting pipe and the connecting head as well as the oil outlet pipe on the surface of the hydraulic pump are all detachably connected via threads.

[0013] As a preferred embodiment of the hydraulic pump with a protective structure of the utility model, a support frame is slidably connected to the bottom of the connecting piece, and the surface of the support frame is detachably connected to the surface of the hydraulic pump.

[0014] As a preferred embodiment of the hydraulic pump with a protective structure of the utility model, an observation window is embedded and fixed on the surface of the water tank, and the observation window is made of transparent material.

[0015] As a preferred embodiment of the hydraulic pump with a protective structure of the utility model, a controller is fixed on the surface of the water tank.

[0016] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0017] 1. The utility model is provided with a cooling mechanism. When the hydraulic pump is working, the hydraulic oil flows into the inside of the connecting pipe through the oil outlet pipe, and then flows into the external pipeline connected to the surface of the connector through the connecting pipe. When the hydraulic pump is working, the water pump will be in a working state, so that the cooling water inside the water tank can flow into the inside of the cooling pipeline through the water supply pipe, so that the cooling pipeline can cool the connecting pipe, so that the connecting pipe can take away part of the temperature of the hydraulic oil, thereby achieving a cooling effect. The setting of the connecting pipe enables the hydraulic oil to obtain a cooling effect for a longer time. The cooling water entering the cooling pipeline will flow into the return pipe, and then flow back to the inside of the water tank through the return pipe, thereby completing the cooling water circulation. When the detection mechanism detects that the surface temperature of the water tank has increased, the semiconductor refrigeration plate will be in a working state, thereby cooling the water tank, so that the cooling water inside the water tank can obtain a cooling effect. At the same time, the first heat sink can disperse the heat generated by the semiconductor refrigeration plate when it is working, thereby improving the cooling efficiency, and the second heat sink on the surface of the connecting pipe can also disperse the heat on the surface of the connecting pipe, so that the hydraulic oil can obtain a better cooling effect.

[0018] 2. The utility model can detect the surface temperature of the water tank by setting a detection mechanism. The water tank can transfer heat to the installation shell, and the installation shell can transfer its own heat to the memory alloy wire. When the memory alloy wire is heated, it will gradually stretch and reset, so that the detection head on the surface of the memory alloy wire can move toward the pressure sensor. When the pressure sensor detects contact with the surface of the detection head, it will be able to transmit a signal to start the semiconductor refrigeration plate. Through this design, the consumption of electric power resources can be reduced, and the semiconductor refrigeration plate does not need to be in the on state all the time. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model;

[0020] Figure 2 It is a three-dimensional structural schematic diagram of another viewing angle of the utility model;

[0021] Figure 3 It is a partial structural schematic diagram of the utility model;

[0022] Figure 4 It is a schematic cross-sectional structure diagram of the cooling mechanism in the utility model;

[0023] Figure 5 It is a schematic diagram of the cross-sectional structure of the detection mechanism in the utility model.

[0024] In the figure: 1. hydraulic pump; 2. cooling mechanism; 201. connecting pipe; 202. cooling pipeline; 203. connecting piece; 204. water tank; 205. water pump; 206. semiconductor refrigeration plate; 207. first heat sink; 208. second heat sink; 209. observation window; 210. support frame; 211. connector; 212. controller; 3. detection mechanism; 301. mounting shell; 302. memory alloy wire; 303. detection head; 304. pressure sensor. DETAILED DESCRIPTION

[0025] See also Figure 1-5 A hydraulic pump with a protective structure comprises a hydraulic pump 1, a cooling mechanism 2 is installed at an oil outlet pipe on the surface of the hydraulic pump 1, and a detection mechanism 3 is arranged on the surface of the cooling mechanism 2;

[0026] The cooling mechanism 2 is used to cool down the hydraulic oil discharged by the hydraulic pump 1 , and the detection mechanism 3 is used to detect the surface temperature of the water tank 204 .

[0027] The cooling mechanism 2 includes a connecting pipe 201, a cooling pipeline 202 is embedded and fixed on the inner wall of the connecting pipe 201, a connecting piece 203 is fixed on the surface of the connecting pipe 201, a water tank 204 is fixed on the top of the connecting piece 203, a water pump 205 is fixed on the surface of the water tank 204, a water pumping end of the water pump 205 is connected to the water tank 204, a water outlet end of the water pump 205 is connected to a water adding pipe, the water adding pipe runs through the connecting pipe 201 and is connected to the cooling pipeline 202, a return pipe is connected to the surface of the cooling pipeline 202, the return pipe runs through the connecting pipe 201 and is connected to the water tank 204, a semiconductor cooling sheet 206 is fixed on the surface of the water tank 204, a first heat sink 207 is fixed on the surface of the semiconductor cooling sheet 206, a second heat sink 208 is fixed on the surface of the connecting pipe 201, and a connector 211 is provided on one side of the connecting pipe 201;

[0028] When the hydraulic pump 1 is working, the hydraulic oil flows into the connecting pipe 201 through the oil outlet pipe, and then flows into the external pipe connected to the surface of the connector 211 through the connecting pipe 201. When the hydraulic pump 1 is working, the water pump 205 will be in a working state, so that the cooling water in the water tank 204 can flow into the cooling pipeline 202 through the water supply pipe, so that the cooling pipeline 202 can cool the connecting pipe 201, so that the connecting pipe 201 can take away part of the temperature of the hydraulic oil, thereby achieving a cooling effect. The setting of the connecting pipe 201 enables the hydraulic oil to obtain a longer cooling effect and enter the cooling pipeline 202. The cooling water will flow into the return pipe and then flow back to the water tank 204 through the return pipe to complete the cooling water circulation. When the detection mechanism 3 detects that the surface temperature of the water tank 204 has increased, the semiconductor refrigeration sheet 206 will be in working state to cool the water tank 204 so that the cooling water inside the water tank 204 can be cooled. At the same time, the first heat sink 207 can disperse the heat generated by the semiconductor refrigeration sheet 206 when it is working, thereby improving the cooling efficiency. The second heat sink 208 on the surface of the connecting pipe 201 can also disperse the heat on the surface of the connecting pipe 201, so that the hydraulic oil can obtain a better cooling effect.

[0029] The detection mechanism 3 includes a mounting shell 301, the mounting shell 301 is fixed to the surface of the water tank 204, a memory alloy wire 302 is fixed to the surface of the mounting shell 301, a detection head 303 is fixed to the surface of the memory alloy wire 302, and a pressure sensor 304 is fixed to the inner wall of the mounting shell 301;

[0030] The water tank 204 can transfer heat to the installation shell 301, and the installation shell 301 can transfer its own heat to the memory alloy wire 302. When the memory alloy wire 302 is heated, it will gradually stretch and reset, so that the detection head 303 on the surface of the memory alloy wire 302 can move toward the pressure sensor 304. When the pressure sensor 304 detects contact with the surface of the detection head 303, it will be able to transmit a signal to start the semiconductor cooling plate 206. Through this design, the consumption of electricity resources can be reduced, and the semiconductor cooling plate 206 does not need to be in the on state all the time.

[0031] Furthermore, the cooling pipeline 202 is arranged in a spiral structure;

[0032] The cooling pipeline 202 is configured in a spiral shape, so that the residence time of the coolant in the cooling pipeline 202 can be increased, thereby improving the cooling effect of the cooling pipeline 202 on the connecting pipe 201 .

[0033] Furthermore, the connecting pipe 201, the cooling pipe 202, the water tank 204 and the mounting shell 301 are all made of copper-aluminum alloy;

[0034] The copper-aluminum alloy has good heat conduction and heat dissipation properties, which enables the connecting pipe 201, the cooling pipeline 202, the water tank 204 and the mounting shell 301 to transfer temperature more quickly.

[0035] Furthermore, the connecting pipe 201, the connecting head 211 and the oil outlet pipe on the surface of the hydraulic pump 1 are all detachably connected via threads;

[0036] Through this design, the connecting pipe 201 can be disassembled from the hydraulic pump 1 and the connecting head 211, making it more convenient to clean and maintain the connecting pipe 201.

[0037] Furthermore, a support frame 210 is slidably connected to the bottom of the connecting member 203, and the surface of the support frame 210 is detachably connected to the surface of the hydraulic pump 1;

[0038] The support frame 210 can distribute part of the weight of the connecting pipe 201 to the surface of the hydraulic pump 1 , thereby improving the supporting effect of the connecting pipe 201 .

[0039] Furthermore, an observation window 209 is embedded and fixed on the surface of the water tank 204, and the observation window 209 is made of transparent material;

[0040] The cooling water level inside the water tank 204 can be observed through the observation window 209 .

[0041] Furthermore, a controller 212 is fixed on the surface of the water tank 204, the input end of the controller 212 is electrically connected to the output end of the pressure sensor 304, and the output end of the controller 212 is electrically connected to the input end of the water pump 205 and the semiconductor cooling sheet 206;

[0042] The pressure sensor 304 can transmit the signal to the controller 212 , and the controller 212 can operate the water pump 205 and the semiconductor cooling plate 206 .

[0043] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A hydraulic pump with a protective structure, comprising a hydraulic pump (1), characterized in that: A cooling mechanism (2) is installed at the oil outlet pipe on the surface of the hydraulic pump (1), and a detection mechanism (3) is provided on the surface of the cooling mechanism (2); The cooling mechanism (2) comprises a connecting pipe (201), a cooling pipeline (202) is embedded and fixed on the inner wall of the connecting pipe (201), a connecting piece (203) is fixed on the surface of the connecting pipe (201), a water tank (204) is fixed on the top of the connecting piece (203), a water pump (205) is fixed on the surface of the water tank (204), a semiconductor cooling sheet (206) is fixed on the surface of the water tank (204), a first heat sink (207) is fixed on the surface of the semiconductor cooling sheet (206), a second heat sink (208) is fixed on the surface of the connecting pipe (201), and a connector (211) is provided on one side of the connecting pipe (201); The detection mechanism (3) comprises a mounting shell (301), the mounting shell (301) being fixed to the surface of a water tank (204), a memory alloy wire (302) being fixed to the surface of the mounting shell (301), a detection head (303) being fixed to the surface of the memory alloy wire (302), and a pressure sensor (304) being fixed to the inner wall of the mounting shell (301).

2. The hydraulic pump with a protective structure according to claim 1, characterized in that: The cooling pipeline (202) is arranged in a spiral structure.

3. The hydraulic pump with a protective structure according to claim 1, characterized in that: The connecting pipe (201), the cooling pipeline (202), the water tank (204) and the installation shell (301) are all made of copper-aluminum alloy.

4. The hydraulic pump with a protective structure according to claim 1, characterized in that: The connecting pipe (201), the connecting head (211) and the oil outlet pipe on the surface of the hydraulic pump (1) are all detachably connected via threads.

5. The hydraulic pump with a protective structure according to claim 1, characterized in that: The bottom of the connecting member (203) is slidably connected to a support frame (210), and the surface of the support frame (210) is detachably connected to the surface of the hydraulic pump (1).

6. The hydraulic pump with a protective structure according to claim 1, characterized in that: An observation window (209) is embedded and fixed on the surface of the water tank (204), and the observation window (209) is made of a transparent material.

7. The hydraulic pump with a protective structure according to claim 1, characterized in that: A controller (212) is fixed on the surface of the water tank (204).

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