Oil supply structure of hydraulic coupler

Abstract

The utility model belongs to the technical field of hydraulic couplers, and particularly discloses a hydraulic coupler oil supply structure which comprises a hydraulic coupler body and an oil tank, the oil inlet end and the oil outlet end of the hydraulic coupler body are provided with an oil inlet pipe and an oil return pipe respectively, and the oil inlet pipe and the oil return pipe are connected with the oil inlet end and the oil outlet end of the oil tank through flanges respectively. The oil inlet pipe and the oil return pipe are respectively provided with a main oil pump and a plate heat exchanger, and the oil inlet pipe and the oil return pipe are respectively provided with a valve. The problems that in an existing hydraulic coupler oil way, due to the fact that the operation condition of an oil pump cannot be observed, a main oil pump of a hydraulic coupler often breaks down due to pressure, the workload is large in the troubleshooting and overhauling process, and the overhauling time is long are solved. According to the utility model, the main oil pump of the hydraulic coupler is externally designed, so that an inspector can directly observe the actual operation condition of the oil pump, potential problems can be found in time, the workload and time for troubleshooting and repairing can be reduced, and the reliability and maintainability of equipment are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of hydraulic couplers, in particular to an oil supply structure of a hydraulic coupler. Background Art

[0002] The gas blower is based on the principle of speed conversion to pressure. The gas blower consists of a fixed outer shell and a rotor with an impeller mounted on the shaft. The gas enters the center of the working impeller through the suction pipe. The high-speed rotating impeller generates centrifugal force, causing the gas to enter the volute and diffuse. The kinetic energy of the gas is converted into static pressure energy. The gas pressure increases and is output through the outlet of the gas blower. In order to adjust the speed of the gas blower, a hydraulic coupler is installed between the three-phase asynchronous motor and the gas blower. Under the condition that the input speed of the motor remains unchanged, it can drive the scoop tube with an electric actuator to change the liquid filling amount of its working chamber (between the pump wheel and the turbine) so as to adjust its output speed steplessly. The speed regulation process is gentle and smooth, the output speed is stable, and the power transmission is reliable.

[0003] Its working process: the oil pump of the hydraulic coupling is driven by the motor to suck the oil from the oil tank into the pump body, and the oil is pushed into the pump wheel of the hydraulic coupling. The pump wheel rotates and generates liquid flow. The liquid flows through the shell of the hydraulic coupling and is directed to the turbine. The turbine is impacted by the liquid flow and generates a reaction force, thereby rotating the output shaft. Through hydraulic transmission, the power is transmitted to the gas fan connected to the output end of the hydraulic coupling, so as to adjust and control the speed of the gas fan. Finally, the oil in the hydraulic coupling flows back to the oil tank through the reflux design in the hydraulic coupling.

[0004] However, during the operation, the main oil pump often has pressure failures. Since the main oil pump of the hydraulic coupling is a built-in design, the inspection personnel cannot visually observe the actual operation of the oil pump during daily inspections, resulting in the main oil pump of the hydraulic coupling not being discovered in time when it fails, thereby increasing the workload and maintenance time during troubleshooting and maintenance. Utility Model Content

[0005] The utility model aims to provide an oil supply structure for a hydraulic coupling to solve the problems in the existing hydraulic coupling oil circuit that the main oil pump of the hydraulic coupling often has pressure failures, the workload is large, and the maintenance time is long during the troubleshooting and maintenance process because the operation of the oil pump cannot be observed.

[0006] In order to achieve the above-mentioned purpose, the basic scheme provided by the utility model is: a hydraulic coupling oil supply structure, including a hydraulic coupling body and an oil tank, the oil inlet end and the oil outlet end of the hydraulic coupling body are respectively provided with an oil inlet pipe and an oil return pipe, the oil inlet pipe and the oil return pipe are respectively flange-connected to the oil inlet end and the oil outlet end of the oil tank, the oil inlet pipe and the oil return pipe are respectively provided with a main oil pump and a plate heat exchanger, and the oil inlet pipe and the oil return pipe are both provided with valves.

[0007] The working principle of the utility model is that when the speed of the gas fan needs to be adjusted, the valves on the oil inlet pipe and the oil return pipe are first opened, and then the main oil pump is started. At the same time, the hydraulic coupling body and the plate heat exchanger are started. The main oil pump sends the oil in the oil tank to the pump wheel of the hydraulic coupling body through the oil inlet pipe. The pump wheel rotates and generates liquid flow, which is guided to the turbine of the hydraulic coupling body. The turbine is impacted by the liquid flow, thereby rotating the output shaft, and the power is transmitted to the gas fan connected to the output shaft of the hydraulic coupling body, so as to adjust the speed of the gas fan. Finally, the oil in the hydraulic coupling body flows into the plate heat exchanger through the oil return pipe for cooling, and then flows back to the oil tank for recycling.

[0008] The beneficial effects of the utility model are as follows: the main oil pump of the hydraulic coupling body is designed to be external. Firstly, the inspection personnel can directly observe the actual operation of the oil pump, which helps to discover potential problems in time. Secondly, the external design may make maintenance and repair work more convenient because the oil pump can be more easily accessed and operated, which can reduce the workload and time of troubleshooting and repair, and improve the reliability and maintainability of the equipment.

[0009] Option 2, which is the preferred option of the basic option, is that the oil inlet pipe is connected to a spare pipe, on which a spare oil pump is provided, and gate valves are provided on the spare pipe and the oil inlet pipe near the oil inlet and outlet ends of the spare oil pump and the oil inlet and outlet ends of the main oil pump; a spare oil pump is provided on the oil inlet pipe to facilitate replacement when the main oil pump fails.

[0010] Option three is the preferred option of the basic option. A return oil filter is provided on the return oil pipe. The return oil filter is provided on the return oil pipe to prevent metal particles and pollutants generated by wear of components in the system from flowing back into the oil tank, making it easier to filter impurities.

[0011] Option 4, which is the preferred option of the basic option, is provided with a pressure gauge on the oil return pipe; a pressure gauge is provided on the oil return pipe to facilitate observation of the degree of blockage of the oil filter screen; when the pressure gauge value is too high, it is known that the screen is blocked.

[0012] Option 5, which is the preferred option of the basic option, is provided with a corrugated compensator on the oil inlet pipe; the corrugated compensator is provided on the oil inlet pipe to facilitate pipeline buffering.

[0013] Option six, which is the preferred option of the basic option, is that a glass tube sight glass is connected to the flange on the oil return pipe; a glass tube sight glass is arranged on the oil return pipe to facilitate observation of the condition of the oil in the pipeline. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a flow chart of a hydraulic coupling oil supply structure of the utility model; DETAILED DESCRIPTION

[0015] The utility model is further described in detail below through specific implementation methods:

[0016] The figure marks in the drawings of the specification include: 1. hydraulic coupling body; 101. oil inlet pipe; 102. oil return pipe; 103. return oil filter; 104. pressure gauge; 105. bellows compensator; 106. glass tube sight glass; 107. spare pipe; 108. gate; 2. oil tank; 3. main oil pump; 4. plate heat exchanger; 5. valve; 6. spare oil pump; 7. base.

[0017] like Figure 1 As shown: a hydraulic coupling oil supply structure, including a hydraulic coupling body 1 and an oil tank 2, the oil inlet end and the oil outlet end of the hydraulic coupling body 1 are respectively flange-connected with an oil inlet pipe 101 and an oil return pipe 102, the oil inlet pipe 101 and the oil return pipe 102 are respectively flange-connected with the oil inlet end and the oil outlet end of the oil tank 2, the oil inlet pipe 101 and the oil return pipe 102 are respectively provided with a main oil pump 3 and a plate heat exchanger 4, the oil inlet pipe 101 is connected with a spare pipe 107, and the spare pipe A backup oil pump 6 is provided on 107, and gate valves 108 are provided on the backup pipe 107 and the oil inlet pipe 101 near the oil inlet and outlet ends of the backup oil pump 6 and the oil inlet and outlet ends of the main oil pump 3. Valves 5 are provided on the oil inlet pipe 101 and the oil return pipe 102, and an oil return filter 103 and a pressure gauge 104 are respectively provided on the oil return pipe 102. A bellows compensator 105 is flange-connected to the oil inlet pipe 101, and a glass tube sight glass 106 is flange-connected to the oil return pipe 102.

[0018] The implementation method of this embodiment is as follows: when the speed of the gas blower needs to be adjusted, first open the valves 5 on the oil inlet pipe 101 and the oil return pipe 102, then start the main oil pump 3, and at the same time start the hydraulic coupling body 1 and the plate heat exchanger 4. The main oil pump 3 sends the oil in the oil tank 2 to the pump wheel of the hydraulic coupling body 1 through the oil inlet pipe 101. The pump wheel rotates and generates liquid flow, which is guided to the turbine of the hydraulic coupling body. The turbine is impacted by the liquid flow, thereby rotating the output shaft, and the power is transmitted to the gas blower connected to the output shaft of the hydraulic coupling body 1, so as to adjust the speed of the gas blower. Finally, the oil in the hydraulic coupling body 1 flows into the plate heat exchanger 4 through the oil return pipe 102 to cool down, and then flows back to the oil tank 2 for recycling.

[0019] The above is only an embodiment of the utility model, and the common knowledge such as the known specific structure and characteristics in the scheme is not described in detail here. It should be pointed out that for those skilled in the art, several deformations and improvements can be made without departing from the structure of the utility model, which should also be regarded as the protection scope of the utility model, and these will not affect the effect of the implementation of the utility model and the practicality of the patent. The scope of protection required by this application shall be based on the content of its claims, and the specific implementation methods and other records in the specification can be used to interpret the content of the claims.

Claims

1. A hydraulic coupling oil supply structure, characterized in that: The invention comprises a hydraulic coupling body (1) and an oil tank (2); the oil inlet end and the oil outlet end of the hydraulic coupling body (1) are respectively provided with an oil inlet pipe (101) and an oil return pipe (102); the oil inlet pipe (101) and the oil return pipe (102) are respectively flange-connected to the oil inlet end and the oil outlet end of the oil tank (2); the oil inlet pipe (101) and the oil return pipe (102) are respectively provided with a main oil pump (3) and a plate heat exchanger (4); and the oil inlet pipe (101) and the oil return pipe (102) are both provided with valves (5).

2. The hydraulic coupling oil supply structure according to claim 1, characterized in that: The oil inlet pipe (101) is connected to a spare pipe (107), a spare oil pump (6) is provided on the spare pipe (107), and gate valves (108) are provided on the spare pipe (107) and the oil inlet pipe (101) near the oil inlet and outlet ends of the spare oil pump (6) and the oil inlet and outlet ends of the main oil pump (3).

3. The hydraulic coupling oil supply structure according to claim 1, characterized in that: The oil return pipe (102) is provided with an oil return filter (103).

4. The hydraulic coupling oil supply structure according to claim 1, characterized in that: The oil return pipe (102) is provided with a pressure gauge (104).

5. The hydraulic coupling oil supply structure according to claim 1, characterized in that: The oil inlet pipe (101) is provided with a corrugated compensator (105).

6. The hydraulic coupling oil supply structure according to claim 1, characterized in that: A glass tube sight glass (106) is connected to the flange of the oil return pipe (102).

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