Pump valve motor comprehensive test device

Abstract

The utility model discloses a comprehensive test device for a pump valve motor, which comprises a test bench, a hydraulic device and a control cabinet, and the top end of the test bench is provided with a pump test assembly, a hydraulic motor test assembly and a multi-way valve test assembly. A first hydraulic interface, a second hydraulic interface and a third hydraulic interface which are used for outputting hydraulic oil to the pump test assembly, the hydraulic motor test assembly and the multi-way valve test assembly are respectively arranged on the front surface of the test bed, and connecting pipes are respectively arranged in the first hydraulic interface, the second hydraulic interface and the third hydraulic interface in a penetrating manner. By utilizing the design of the hydraulic device, the test bed, the pump test assembly, the hydraulic motor test assembly and the multi-way valve test assembly, various hydraulic elements such as a pump, a motor and a valve can be simultaneously tested in a short time through various test devices at the top end of the test bed, so that the use of a plurality of platforms is reduced, and the cost is reduced. Independent detection of a plurality of devices is integrated.

Description

Technical Field

[0001] The utility model relates to the technical field of test benches, in particular to a comprehensive test device for pumps, valves and motors. Background Art

[0002] Hydraulic pumps, multi-way valves, and hydraulic motors are the power components of the hydraulic system of the tunnel boring machine. Their performance has a great impact on the overall performance of the tunnel boring machine. During the repair and assembly stage of the tunnel boring machine, as well as the rework stage of the hydraulic pumps, hydraulic motors, and multi-way valves (hereinafter referred to as pumps, valves, and motors), the pumps, valves, and motors need to undergo rigorous individual performance tests and system matching tests.

[0003] When analyzing the repair process of existing hydraulic components, the workshop can only test one pump, valve or motor. When testing different objects, different test platforms need to be replaced, which is not convenient to use. Therefore, a comprehensive test bench for pumps, valves and motors is designed. This test bench can meet the testing needs of various performance indicators of pumps, valves and motors, realizing a test platform that can meet the multi-purpose testing of pumps, valves and motors. Utility Model Content

[0004] The purpose of the utility model is to provide a comprehensive test device for pumps, valves and motors to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a comprehensive test device for pumps, valves and motors, comprising:

[0006] A test bench, the top of which is provided with a pump test assembly, a hydraulic motor test assembly and a multi-way valve test assembly for experimental testing;

[0007] A hydraulic device, the hydraulic device being arranged inside the test bench;

[0008] A control cabinet is arranged on one side of the test bench.

[0009] Preferably, the front of the test bench is respectively provided with a first hydraulic interface, a second hydraulic interface and a third hydraulic interface for outputting hydraulic oil to the pump test assembly, the hydraulic motor test assembly and the multi-way valve test assembly, and connecting pipes are respectively inserted into the interiors of the first hydraulic interface, the second hydraulic interface and the third hydraulic interface.

[0010] Preferably, the pump test assembly includes an electric motor and a test pump, the outer wall of the rotating shaft of the electric motor is provided with a second coupling, and the outer wall of the rotating shaft of the test pump is provided with a first coupling.

[0011] Preferably, a first torque and speed sensor is provided between the motor and the tested pump, and the rotating shafts at both ends of the first torque and speed sensor are respectively sleeved inside the second coupling and the first coupling.

[0012] Preferably, the hydraulic motor test assembly includes a loading motor, a tested high-speed motor and a tested low-speed motor, a reducer is provided at one end of the loading motor, and a second torque-speed sensor and a third torque-speed sensor are provided at one side of the reducer.

[0013] Preferably, the outer wall of the rotating shaft on the side opposite to the loading motor and the reducer is provided with a third coupling, the outer wall of the rotating shaft on the side opposite to the second torque and speed sensor and the reducer is provided with a fourth coupling, the outer wall of the rotating shaft on the side opposite to the third torque and speed sensor and the reducer is provided with a sixth coupling, the outer wall of the rotating shaft on the side opposite to the tested high-speed motor and the second torque and speed sensor is provided with a fifth coupling, and the outer wall of the rotating shaft on the side opposite to the tested low-speed motor and the third torque and speed sensor is provided with a seventh coupling.

[0014] Preferably, the multi-way valve test assembly includes a test valve and a hydraulic pump, a force sensor is arranged between the test valve and the hydraulic pump, an eighth coupling is provided on the outer wall of the rotating shaft on the opposite side of the force sensor and the test valve, and a ninth coupling is provided on the outer wall of the rotating shaft on the opposite side of the force sensor and the hydraulic pump.

[0015] The technical effects and advantages of this utility model are:

[0016] The utility model utilizes the design of hydraulic devices, test benches, pump test components, hydraulic motor test components and multi-way valve test components. At the top of the test bench, various test devices can be used to simultaneously test multiple hydraulic components such as pumps, motors and valves in a short period of time, reducing the use of multiple platforms and integrating the independent detection of multiple devices. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall three-dimensional structure of the utility model.

[0018] Figure 2 This is a schematic diagram of the three-dimensional structure of the hydraulic pump test assembly of the utility model.

[0019] Figure 3 This is a schematic diagram of the three-dimensional structure of the hydraulic motor test assembly of the utility model.

[0020] Figure 4 This is a schematic diagram of the three-dimensional structure of the multi-way valve test assembly of the utility model.

[0021] In the figure: 1. test bench; 2. hydraulic device; 3. control cabinet; 4. first hydraulic interface; 5. second hydraulic interface; 6. third hydraulic interface; 7. pump test assembly; 71. test pump; 72. first coupling; 73. first torque and speed sensor; 74. second coupling; 75. electric motor; 8. hydraulic motor test assembly; 81. loading motor; 82. third coupling; 83. reducer; 84. fourth coupling; 85. second torque and speed sensor; 86. fifth coupling; 87. test high-speed motor; 88. sixth coupling; 89. third torque and speed sensor; 810. seventh coupling; 811. test low-speed motor; 9. multi-way valve test assembly; 91. test valve; 92. eighth coupling; 93. force sensor; 94. ninth coupling; 95. hydraulic pump. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0023] The utility model provides Figure 1-4 A pump, valve and motor comprehensive test device shown includes:

[0024] Test bench 1, the top of which is provided with a pump test assembly 7, a hydraulic motor test assembly 8 and a multi-way valve test assembly 9 for experimental testing;

[0025] A hydraulic device 2, the hydraulic device 2 is arranged inside the test bench 1;

[0026] The control cabinet 3 is arranged on one side of the test bench 1 .

[0027] Specifically, the front of the test bench 1 is respectively provided with a first hydraulic interface 4, a second hydraulic interface 5 and a third hydraulic interface 6 for outputting hydraulic oil to the pump test assembly 7, the hydraulic motor test assembly 8 and the multi-way valve test assembly 9, and connecting pipes are respectively inserted into the interiors of the first hydraulic interface 4, the second hydraulic interface 5 and the third hydraulic interface 6.

[0028] Furthermore, the control cabinet 3 is electrically connected to the hydraulic device 2, the first torque and speed sensor 73, the electric motor 75, the second torque and speed sensor 85, the third torque and speed sensor 89, the tested low-speed motor 811, the tested high-speed motor 87, the force sensor 93 and the hydraulic pump 95 through electric wires to control the start and stop and collect data. The hydraulic device 2 is connected to the tested pump 71, the loading motor 81 and the tested valve 91 through the connecting pipes inside the first hydraulic interface 4, the second hydraulic interface 5 and the third hydraulic interface 6, respectively, so as to output and supply the hydraulic oil.

[0029] Specifically, the pump test assembly 7 includes an electric motor 75 and a test pump 71. The outer wall of the rotating shaft of the electric motor 75 is sleeved with a second coupling 74, and the outer wall of the rotating shaft of the test pump 71 is sleeved with a first coupling 72. A first torque and speed sensor 73 is arranged between the electric motor 75 and the test pump 71. The rotating shafts at both ends of the first torque and speed sensor 73 are respectively sleeved inside the second coupling 74 and the first coupling 72.

[0030] Furthermore, during the hydraulic pump test, the first hydraulic interface 4 is connected to the inlet and outlet of the test pump 71 through a connecting pipe, and the pump test can be carried out. During the test, the test pump 71 is connected to the first torque and speed sensor 73 and the 160KW variable frequency motor 75 through the first coupling 72 and the second coupling 74 respectively. The motor 75 drives the test pump 71 to complete the test at different speeds.

[0031] Specifically, the hydraulic motor test assembly 8 includes a loading motor 81, a tested high-speed motor 87 and a tested low-speed motor 811. A reducer 83 is provided at one end of the loading motor 81, and a second torque and speed sensor 85 and a third torque and speed sensor 89 are provided on one side of the reducer 83. The outer wall of the rotating shaft on the side opposite to the loading motor 81 and the reducer 83 is provided with a third coupling 82, the outer wall of the rotating shaft on the side opposite to the second torque and speed sensor 85 and the reducer 83 is provided with a fourth coupling 84, the outer wall of the rotating shaft on the side opposite to the third torque and speed sensor 89 and the reducer 83 is provided with a sixth coupling 88, the outer wall of the rotating shaft on the side opposite to the test high-speed motor 87 and the second torque and speed sensor 85 is provided with a fifth coupling 86, and the outer wall of the rotating shaft on the side opposite to the test low-speed motor 811 and the third torque and speed sensor 89 is provided with a seventh coupling 810.

[0032] Furthermore, a fourth hydraulic interface is provided on the back of the test bench 1. When testing the hydraulic motor, the second hydraulic interface 5 is connected to the inlet and outlet of the loading motor 81, and the fourth hydraulic interface is connected to the inlet and outlet of the tested high-speed motor 87 and the tested low-speed motor 811, so that the motor test can be carried out. According to the output torque of the tested high-speed motor 87 and the tested low-speed motor 811, the high-torque tested high-speed motor 87 and the low-torque tested low-speed motor 811 are connected to the reducer 83 and the loading motor 81 respectively through multiple third couplings 82, fourth couplings 84, sixth couplings 88, fifth couplings 86 and seventh couplings 810, and two second torque and speed sensors 85 and third torque and speed sensors 89 of 20000N·m and 2000N·m are used for detection to improve the measurement accuracy.

[0033] Specifically, the multi-way valve test assembly 9 includes a test valve 91 and a hydraulic pump 95. A force sensor 93 is arranged between the test valve 91 and the hydraulic pump 95. An eighth coupling 92 is provided on the outer wall of the rotating shaft on the opposite side of the force sensor 93 and the test valve 91. A ninth coupling 94 is provided on the outer wall of the rotating shaft on the opposite side of the force sensor 93 and the hydraulic pump 95.

[0034] Furthermore, a fifth hydraulic interface is provided at the position of the multi-way valve test assembly 9 on the back of the test bench 1. The fifth hydraulic interface is connected to the hydraulic pump 95 through a connecting pipe. When testing the multi-way valve, the third hydraulic interface 6 is connected to the inlet and outlet of the test valve 91 through the connecting pipe to carry out the multi-way valve test. During the test, the hydraulic device 2 provides a pressurized oil flow through the hydraulic pump 95 to control the hydraulic power to apply a load to the test valve 91. The test valve 91 is connected to the force sensor 93 through the eighth coupling 92 and the ninth coupling 94. The hydraulic device 2 controls and monitors the test valve 91 according to the set test parameters and load feedback information.

[0035] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent replacements for some of the technical features therein. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A comprehensive test device for pumps, valves and motors, characterized in that: include: A test bench (1), wherein a pump test assembly (7), a hydraulic motor test assembly (8), and a multi-way valve test assembly (9) for experimental testing are provided at the top of the test bench (1); A hydraulic device (2), the hydraulic device (2) being arranged inside the test bench (1); A control cabinet (3), the control cabinet (3) being arranged on one side of the test bench (1); The hydraulic motor test assembly (8) includes a loading motor (81), a tested high-speed motor (87), and a tested low-speed motor (811), wherein a reducer (83) is provided at one end of the loading motor (81), and a second torque and speed sensor (85) and a third torque and speed sensor (89) are provided at one side of the reducer (83); A third coupling (82) is provided on the outer wall of the rotating shaft on the side opposite to the loading motor (81) and the reducer (83); a fourth coupling (84) is provided on the outer wall of the rotating shaft on the side opposite to the second torque and speed sensor (85) and the reducer (83); a sixth coupling (88) is provided on the outer wall of the rotating shaft on the side opposite to the third torque and speed sensor (89) and the reducer (83); a fifth coupling (86) is provided on the outer wall of the rotating shaft on the side opposite to the tested high-speed motor (87) and the second torque and speed sensor (85); and a seventh coupling (810) is provided on the outer wall of the rotating shaft on the side opposite to the tested low-speed motor (811) and the third torque and speed sensor (89); The multi-way valve test assembly (9) comprises a test valve (91) and a hydraulic pump (95), a force sensor (93) is provided between the test valve (91) and the hydraulic pump (95), an eighth coupling (92) is provided on the outer wall of the rotating shaft on the side opposite to the force sensor (93) and the test valve (91), and a ninth coupling (94) is provided on the outer wall of the rotating shaft on the side opposite to the force sensor (93) and the hydraulic pump (95).

2. A pump, valve and motor comprehensive test device according to claim 1, characterized in that: The front of the test bench (1) is provided with a first hydraulic interface (4), a second hydraulic interface (5) and a third hydraulic interface (6) for outputting hydraulic oil to the pump test assembly (7), the hydraulic motor test assembly (8) and the multi-way valve test assembly (9), respectively. Connecting pipes are respectively inserted into the interiors of the first hydraulic interface (4), the second hydraulic interface (5) and the third hydraulic interface (6).

3. A pump, valve and motor comprehensive testing device according to claim 1, characterized in that: The pump test assembly (7) comprises an electric motor (75) and a tested pump (71), wherein the outer wall of the rotating shaft of the electric motor (75) is provided with a second coupling (74), and the outer wall of the rotating shaft of the tested pump (71) is provided with a first coupling (72).

4. A pump, valve and motor comprehensive testing device according to claim 3, characterized in that: A first torque and speed sensor (73) is provided between the motor (75) and the test pump (71), and the rotating shafts at both ends of the first torque and speed sensor (73) are respectively sleeved inside the second coupling (74) and the first coupling (72).

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