Hydraulic pump mechanical energy recovery device

Abstract

The utility model relates to the technical field of hydraulic pump tests, in particular to a mechanical energy recovery device for a hydraulic pump, which comprises a pump test bed, and a test pump, a double-shaft motor and an energy recovery motor are fixedly mounted at the top of the pump test bed. The two output ends of the double-shaft motor are fixedly connected with the input end of the test pump and the input end of the energy recovery motor through couplings respectively, the output end of the test pump is connected with a safety control module through a pipeline, the safety control module comprises a plug-in mounting unit and an overflow valve, and the safety control module is connected with a loading control module through a pipeline. The energy recovery motor is connected with the test pump through the double-output-shaft motor, so that most of high-pressure flow of the test pump is converted into mechanical energy through the loading energy recovery motor, the mechanical energy is transmitted to the test pump through the double-output-shaft motor, energy recovery is formed, and the energy-saving effect is achieved.

Description

Technical Field

[0001] This utility model relates to the field of hydraulic pump testing technology, specifically a hydraulic pump mechanical energy recovery device. Background Technology

[0002] Hydraulic pump testing is a series of experiments designed to evaluate the performance of hydraulic pumps and ensure their safe and reliable operation. The main purpose of hydraulic pump testing is to measure parameters such as flow rate, pressure, efficiency, and speed, which are crucial for the design and optimization of hydraulic systems.

[0003] Currently, in existing hydraulic pump testing processes, high pressure is typically applied through overflow, and its energy is dissipated as heat through the overflow, resulting in energy loss. To address this, we propose a hydraulic pump mechanical energy recovery device. Summary of the Invention

[0004] The purpose of this utility model is to provide a hydraulic pump mechanical energy recovery device, which has the advantage of energy recovery and reuse, and solves the problem that in the existing hydraulic pump test process, high pressure is usually applied through overflow, and its energy is dissipated to the outside through overflow, resulting in energy loss.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a hydraulic pump mechanical energy recovery device, comprising a pump test bench, on the top of which a test pump, a dual-shaft motor, and an energy recovery motor are fixedly mounted. The two output ends of the dual-shaft motor are respectively fixedly connected to the input ends of the test pump and the energy recovery motor via couplings. The output end of the test pump is connected to a safety control module via a pipeline. The safety control module includes a cartridge unit and an overflow valve. The safety control module is connected to a loading control module via a pipeline. The loading control module includes a pressure sensor, an electromagnetic directional valve, and a proportional overflow valve. The output end of the loading control module is connected to an energy recovery module via a pipeline. The energy recovery module includes two electromagnetic directional valves, and the output ends of both electromagnetic directional valves are connected to the energy recovery motor via pipelines.

[0006] Preferably, a filter is connected between the output end of the safety control module and the input end of the electromagnetic reversing valve via a pipeline.

[0007] Preferably, the input end of the cartridge unit is connected to the output end of the relief valve via a pipe, and the input end of the relief valve is connected to the output end of the test pump via a pipe. Simultaneously, the output end of the cartridge unit is connected to the safety control module via a pipe. The system includes a pressure sensor, an electromagnetic directional valve, and a proportional relief valve.

[0008] Preferably, the input end of the pressure sensor is connected to the output end of the safety control module via a pipe, the electromagnetic directional valve and the proportional relief valve are connected via a pipe, the input end of the electromagnetic directional valve is connected to the output end of the safety control module via a pipe, and the output end of the proportional relief valve is connected to the energy recovery module via a pipe.

[0009] Preferably, the pipeline connecting the electromagnetic reversing valve and the pressure sensor is provided with a return oil tank T11 contact.

[0010] Preferably, a replenishing oil P contact is provided on the pipeline connecting the two electromagnetic directional valves, and a return oil tank T41 contact is provided on the pipeline connecting the output end of the two electromagnetic directional valves and the energy recovery motor.

[0011] Preferably, the inlet end of the test pump is provided with an oil tank suction contact.

[0012] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0013] This invention connects an energy recovery motor to a test pump using a dual-output shaft motor. This allows most of the high-pressure flow from the test pump to be converted into mechanical energy via the energy recovery motor. The mechanical energy is then transmitted to the test pump through the dual-output shaft motor, thus achieving energy recovery and energy saving. Attached Figure Description

[0014] Figure 1 This is a hydraulic schematic diagram of the present invention.

[0015] In the diagram: 1. Pump test bench; 2. Test pump; 3. Dual-shaft motor; 4. Energy recovery motor; 5. Safety control module; 6. Cartridge unit; 7. Relief valve; 8. Loading control module; 9. Pressure sensor; 10. Solenoid directional valve; 11. Proportional relief valve; 12. Energy recovery module; 13. Solenoid directional valve; 14. Filter; 15. Return oil tank T11 contact; 16. Oil replenishment P contact; 17. Return oil tank T41 contact; 18. Oil tank suction contact. Detailed Implementation

[0016] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0017] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0018] Please see Figure 1 As shown, this utility model provides a technical solution: a hydraulic pump mechanical energy recovery device, including a pump test bench 1. A test pump 2, a dual-shaft motor 3, and an energy recovery motor 4 are fixedly mounted on the top of the test bench 1. The two output ends of the dual-shaft motor 3 are fixedly connected to the input ends of the test pump 2 and the energy recovery motor 4 respectively via couplings. The inlet end of the test pump 2 is provided with an oil tank suction contact 18. The output end of the test pump 2 is connected to a safety control module 5 via a pipeline. The safety control module 5 includes a cartridge unit 6 and an overflow valve 7. The input end of the cartridge unit 6 is connected to the output end of the overflow valve 7 via a pipeline, and the input end of the overflow valve 7 is connected to the output end of the test pump 2 via a pipeline. Simultaneously, the output end of the cartridge unit 6 is connected to the safety control module 5 via a pipeline. A pressure sensor 9 is connected to an electromagnetic directional valve 10 and a proportional overflow valve 11. A return oil tank T11 contact 15 is provided on the pipeline connecting the electromagnetic directional valve 10 and the pressure sensor 9. The safety control module 5 is connected to a load control system via a pipeline. Module 8, the load control module 8, includes a pressure sensor 9, an electromagnetic directional valve 10, and a proportional relief valve 11. The input end of the pressure sensor 9 is connected to the output end of the safety control module 5 via a pipeline. The electromagnetic directional valve 10 and the proportional relief valve 11 are connected via a pipeline. The input end of the electromagnetic directional valve 10 is connected to the output end of the safety control module 5 via a pipeline. The output end of the proportional relief valve 11 is connected to the energy recovery module 12 via a pipeline. The output end of the load control module 8 is connected to the energy recovery module 12 via a pipeline. The energy recovery module 12 includes two electromagnetic directional valves 13. The output ends of both electromagnetic directional valves 13 are connected to the energy recovery motor 4 via pipelines. A replenishment P contact 16 is provided on the pipeline connecting the two electromagnetic directional valves 13. A return oil tank T41 contact 17 is provided on the pipeline connecting the output ends of the two electromagnetic directional valves 13 and the energy recovery motor 4. A filter 14 is connected between the output end of the safety control module 5 and the input end of the electromagnetic directional valve 10 via a pipeline.

[0019] This technical solution: By setting the safety control module 5, the high-pressure flow discharged by the test pump 2 can be ensured to operate stably. By setting the load control module 8, the maximum ratio of high-pressure flow entering the energy recovery module 12 can be controlled within the normal pressure setting range. By setting the energy recovery module 12, the high-pressure flow can be sent to the energy recovery motor 4, which in turn drives the energy recovery motor 4 to rotate, so that the high-pressure flow is converted into mechanical energy. The mechanical energy is transmitted to the test pump 2 through the dual-output shaft motor, thereby forming energy recovery and achieving the effect of energy saving.

[0020] Working principle: The high-pressure flow discharged from the test pump 2 is converted into mechanical energy by the loading motor. The mechanical energy is transmitted to the test pump 2 through the dual-output shaft motor, thus achieving energy recovery and energy saving.

[0021] It is important to note that the constructions and arrangements of this application shown in several different exemplary embodiments are merely illustrative. Although only a few embodiments are described in detail in this disclosure, those who consult this disclosure will readily understand that many modifications are possible (e.g., changes in the size, dimensions, structure, shape and proportion of various elements, as well as parameter values ​​(e.g., temperature, pressure, etc.), mounting arrangements, use of materials, color, orientation, etc.) without substantially departing from the novel teachings and advantages of the subject matter described in this application). For example, an element shown as integrally formed may be composed of multiple parts or elements, the position of elements may be inverted or otherwise altered, and the nature or number or position of discrete elements may be changed or altered. Therefore, all such modifications are intended to be included within the scope of this utility model. The order or sequence of any process or method steps may be changed or reordered according to alternative embodiments. In the claims, any "device plus function" clause is intended to cover the structure described herein that performs the function, and not only structural equivalents but also equivalent structures. Without departing from the scope of this invention, other substitutions, modifications, alterations, and omissions may be made in the design, operation, and arrangement of the exemplary embodiments. Therefore, this invention is not limited to the specific embodiments, but extends to various modifications that still fall within the scope of the appended claims.

[0022] Furthermore, in order to provide a concise description of exemplary embodiments, not all features of actual embodiments (i.e., those features that are not relevant to the best mode of carrying out the present invention as currently considered, or those features that are not relevant to implementing the present invention) may be omitted.

[0023] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit the scope of protection of this utility model. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of this utility model without departing from the essence and scope of the technical solutions of this utility model.

Claims

1. A hydraulic pump mechanical energy recovery device comprising a pump test bench, characterized in that: The top of the pump test bench is fixedly provided with a test pump, a double-shaft motor and an energy recovery motor, two output ends of the double-shaft motor are fixedly connected with the input ends of the test pump and the energy recovery motor through shaft couplings respectively, the output end of the test pump is connected with a safety control module through a pipeline, the safety control module comprises a plug-in unit and an overflow valve, the safety control module is connected with a loading control module through a pipeline, the loading control module comprises a pressure sensor, an electromagnetic reversing valve and a proportional overflow valve, the output end of the loading control module is connected with an energy recovery module through a pipeline, and the energy recovery module comprises two electromagnetic reversing valves.

2. The hydraulic pump mechanical energy recovery device of claim 1, wherein: A filter is connected between the output end of the safety control module and the input end of the electromagnetic reversing valve through a pipeline.

3. The hydraulic pump mechanical energy recovery device of claim 1, wherein: The input end of the plug-in unit is connected with the output end of the overflow valve through a pipeline, the input end of the overflow valve is connected with the output end of the test pump through a pipeline, meanwhile, the output end of the plug-in unit is connected with the safety control module through a pipeline, and the pressure sensor is connected with the electromagnetic reversing valve and the proportional overflow valve.

4. The hydraulic pump mechanical energy recovery device of claim 1, wherein: The input end of the pressure sensor is connected with the output end of the safety control module through a pipeline, the electromagnetic reversing valve and the proportional overflow valve are communicated through a pipeline, the input end of the electromagnetic reversing valve is connected with the output end of the safety control module through a pipeline, and the output end of the proportional overflow valve is connected with the energy recovery module through a pipeline.

5. The hydraulic pump mechanical energy recovery device of claim 1, wherein: An oil return tank T11 joint is arranged on the pipeline connected with the electromagnetic reversing valve and the pressure sensor.

6. The hydraulic pump mechanical energy recovery device of claim 1, wherein: An oil supplement P joint is arranged on the pipeline connected with the two electromagnetic reversing valves, and an oil return tank T41 joint is arranged on the pipeline connected with the output ends of the two electromagnetic reversing valves and the energy recovery motor.

7. The hydraulic pump mechanical energy recovery device of claim 1, wherein: The liquid inlet end of the test pump is provided with an oil tank oil suction joint.

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