Hydraulic pump performance detection device

Abstract

The utility model discloses a hydraulic pump performance detection device, which relates to the technical field of hydraulic pump production and comprises a test board, a test motor fixed on the top of the bottom wall of the test board through a connecting part, a feeding piece arranged on the top of the bottom wall of the test board, a test pump arranged on the inner side of the feeding piece and an oil tank fixed on the top of the bottom wall of the test board. The top of the bottom wall of the testing table is provided with a testing piece, the top of the bottom wall of the testing table is provided with a pressing plate, the distance between the two clamping plates is changed while the testing motor and the testing pump are connected through the feeding piece, and then the testing pump is clamped.

Description

Technical Field

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

[0002] Hydraulic pump performance testing devices play a crucial role. They accurately measure the flow characteristics of hydraulic pumps, determining whether their flow output meets standards under different operating conditions, thus assessing the pump's fluid supply capacity. By detecting pressure parameters, they can determine the pump's pressure tolerance and pressure fluctuations, ensuring system pressure stability. Furthermore, they can evaluate pump efficiency, providing a basis for energy-saving analysis. This device can simulate various real-world operating environments, identifying potential faults in advance, which helps optimize hydraulic pump design and manufacturing processes, improve product quality and reliability, and ensure the efficient and safe operation of the entire hydraulic system.

[0003] Current hydraulic pump performance testing equipment typically relies on manual tools to fix the pump to be tested onto a test bench, and then connect it sequentially to the motor, oil source, and other equipment. This significantly reduces testing efficiency. In batch testing, the lengthy installation and disassembly process prolongs the testing cycle and slows down production. Furthermore, it can easily damage equipment; improper connections can lead to forced assembly, damaging component interfaces, increasing maintenance costs, and interfering with testing accuracy. Loose or misaligned connections can cause leaks, vibrations, and noise, resulting in inaccurate flow and pressure parameters and misjudgments of pump performance. Utility Model Content

[0004] The purpose of this invention is to provide a hydraulic pump performance testing device that can solve the technical problems of inconvenience in quickly fixing and testing hydraulic pumps and low testing efficiency in the prior art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a hydraulic pump performance testing device, comprising a test bench, a test motor fixed to the top of the bottom wall of the test bench via a connecting component, a feeding component provided on the top of the bottom wall of the test bench, a test pump provided inside the feeding component, an oil tank fixed to the top of the bottom wall of the test bench, a test piece provided on the top of the bottom wall of the test bench, and a pressure plate provided on the top of the bottom wall of the test bench; the feeding component is assembled to clamp the test pump and move the test pump; the test piece is assembled to test the pressurization performance of the test pump.

[0006] Furthermore, the output end of the test motor is detachably connected to a coupling, and an oil tank is fixed to the top of the bottom wall of the test bench. An oil inlet is installed through one side of the oil tank, and an oil outlet is installed through the other side of the oil tank, with the oil outlet located at the bottom of the oil inlet.

[0007] Furthermore, the feeding component includes a feeding motor, which is fixed to the top of the bottom wall of the test bench. The feeding motor is located on one side of the test motor. A threaded rod is fixed to the output end of the feeding motor. Two limiting rods are fixed to the top of the bottom wall of the test bench. A meshing plate is installed on the outer side of the threaded rod through a thread. The meshing plate is slidably engaged with the outer side of the two limiting rods. A base is fixed to the top of the meshing plate. Two slots are opened on the top of the base. Two clamping plates are slidably engaged with the inner side of the slots.

[0008] Furthermore, the feeding component also includes two guide plates, which are fixed to the top of the bottom wall of the test bench and located at the bottom of the base. Guide rods are fixed to the bottom of both clamps. The guide rods are configured as square rod segments and spherical segments. The square rod segments are fixedly connected to the clamps, and the spherical segments are slidably engaged with the inside of the guide plates.

[0009] Furthermore, the test pump is placed on top of the base, and the test pump is located on one side of the two clamps that are close to each other.

[0010] Furthermore, the test piece includes a bracket and a hydraulic cylinder. The bracket is fixedly installed on the top of the bottom wall of the test bench and is located on one side of the test pump. A pressure sensor is fixed inside the top of the bracket. The hydraulic cylinder is fixedly installed on the top of the bottom wall of the test bench. The top of the output end of the hydraulic cylinder is in contact with the bottom of the top wall of the bracket and is located inside the bracket. The pressure sensor is located directly above the output end of the hydraulic cylinder.

[0011] Furthermore, two support plates are fixed to the top of the bottom wall of the test platform, and the two support plates are located on the side of the test pump away from the test motor. Telescopic rods are fixed to the inner side of the two support plates, and pressure plates are fixed to the output ends of the two telescopic rods. Two connecting flanges are fixed to the inner side of the pressure plates, and flow meters are fixed to the inner side of the two connecting flanges. Two sealing rings are fixed to the side of the pressure plate near the test pump.

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

[0013] 1. This utility model, by installing a feeding component, changes the distance between the two clamping plates while connecting the test motor and the test pump, thereby clamping the test pump. Compared with the prior art, this makes the installation and disassembly process of the test pump simpler, saves installation and disassembly time, and improves the overall efficiency of the test.

[0014] 2. This utility model incorporates a hydraulic cylinder and a pressure sensor. The hydraulic cylinder simulates actual working conditions, visually demonstrating whether the power output of the hydraulic pump can effectively drive the load. The pressure sensor accurately measures pressure and obtains pressure change curves, facilitating the evaluation of the hydraulic pump's performance and ensuring its stable and efficient operation under rated pressure and other parameters.

[0015] 3. This utility model is equipped with a flow meter and a connecting flange. The flow meter can accurately measure the flow rate of liquid entering and exiting the hydraulic pump, helping to determine parameters such as flow loss and efficiency. The connecting flange provides a stable and reliable connection method, facilitating the installation and disassembly of the test equipment. At the same time, the rubber ring ensures sealing, making the test data more accurate. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the three-dimensional structure of the present invention. Figure 1 ;

[0017] Figure 2 This is a schematic diagram of the three-dimensional structure of the present invention. Figure 2 ;

[0018] Figure 3 This is a three-dimensional structural diagram of the feeding component of this utility model;

[0019] Figure 4 This is a schematic cross-sectional view of the feeding component of this utility model.

[0020] In the diagram: 1. Test bench; 2. Test motor; 3. Test pump; 4. Coupling; 5. Bracket; 6. Pressure plate; 7. Oil tank; 71. Oil inlet; 72. Oil outlet; 8. Feeding component; 81. Feeding motor; 82. Threaded rod; 83. Limiting rod; 84. Engaging plate; 85. Guide rod; 86. Guide plate; 87. Clamping plate; 88. Base; 89. Slot; 9. Hydraulic cylinder; 10. Support plate; 11. Telescopic rod; 12. Sealing ring. Detailed Implementation

[0021] 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.

[0022] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "front end," "rear end," "both ends," "one end," and "the other end," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0023] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," "connected," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0024] Please see Figures 1-4 A hydraulic pump performance testing device includes a test bench 1. A test motor 2 is fixed to the top of the bottom wall of the test bench 1 via a connecting component. A feeding component 8 is provided on the top of the bottom wall of the test bench 1, and a test pump 3 is provided inside the feeding component 8. An oil tank 7 is fixed to the top of the bottom wall of the test bench 1. A test piece is provided on the top of the bottom wall of the test bench 1. A pressure plate 6 is provided on the top of the bottom wall of the test bench 1. The feeding component 8 is assembled to clamp and move the test pump 3. The test piece is assembled to test the pressurization performance of the test pump 3. A coupling 4 is detachably connected to the output end of the test motor 2. An oil tank 7 is fixed to the top of the bottom wall of the test bench 1. An oil inlet 71 is installed through one side of the oil tank 7, and an oil outlet 72 is installed through one side of the oil tank 7, with the oil outlet 72 located at the bottom of the oil inlet 71. The operator uses a pipeline to allow external air to pass through. The oil source is fixedly connected to the oil inlet 71 of the oil tank 7, and then the oil outlet 72 of the oil tank 7 is fixedly connected to one of the connecting flanges on the inner side of the support plate 10. Then the other connecting flange on the inner side of the support plate 10 is fixedly connected to the oil inlet end of the hydraulic cylinder 9. The inside of the oil tank 7 is filled with oil for subsequent testing of the test pump 3. The test pump 3 is placed on the top of the base 88 and is located on the side of the two clamping plates 87 that are close to each other. The test piece includes the bracket 5 and the hydraulic cylinder 9. The bracket 5 is fixedly installed on the top of the bottom wall of the test bench 1 and is located on one side of the test pump 3. A pressure sensor is fixed inside the top of the bracket 5. The hydraulic cylinder 9 is fixedly installed on the top of the bottom wall of the test bench 1. The top of the output end of the hydraulic cylinder 9 is in contact with the bottom of the top wall of the bracket 5 and the hydraulic cylinder 9 is located inside the bracket 5. The pressure sensor is located directly above the output end of the hydraulic cylinder 9.

[0025] In this embodiment, the operator starts the test motor 2. The output of the test motor 2 drives the test pump 3 through the coupling 4. The test pump 3 draws oil from the inside of the oil tank 7 through the oil outlet 72 of the oil tank 7. The drawn oil passes through one of the connecting flanges, and then the test pump 3 pressurizes the oil and pumps it into the inside of the hydraulic cylinder 9 through the other connecting flange. The flow meter inside the connecting flange monitors the drawn oil in real time. The output of the hydraulic cylinder 9 applies pressure to the bracket 5. The pressure sensor inside the bracket 5 tests the pressure. The flow meter and the pressure sensor transmit the data to an external processor for processing, so that the operator can analyze it.

[0026] Specifically, the feeding component 8 includes a feeding motor 81, which is fixed to the top of the bottom wall of the test bench 1. The feeding motor 81 is located on one side of the test motor 2. A threaded rod 82 is fixed to the output end of the feeding motor 81. Two limiting rods 83 are fixed to the top of the bottom wall of the test bench 1. A meshing plate 84 is threadedly installed on the outer side of the threaded rod 82. The meshing plate 84 is slidably engaged with the outer side of the two limiting rods 83. A base 88 is fixed to the top of the meshing plate 84. Two slots 89 are opened on the top of the base 88. Two clamping plates 87 are slidably engaged with the inner side of the slots 89. The feeding component 8 also includes two guide plates 86, which are fixed to the top of the bottom wall of the test bench 1 and located at the bottom of the base 88. Guide rods 85 are fixed to the bottom of the two clamping plates 87. The guide rods 85 are configured as square rod segments and spherical segments. The square rod segments are fixedly connected to the clamping plates 87, and the spherical segments are slidably engaged with the inner side of the guide plates 86.

[0027] In this embodiment, the operator places the test pump 3 on top of the base 88, then controls the feeding motor to rotate forward. The output end of the feeding motor drives the threaded rod 82 to rotate forward. The threaded rod 82 drives the meshing plate 84 to move towards the side closer to the test motor 2 through the meshing action. Two limiting rods 83 prevent the meshing plate 84 from shaking during the movement. The meshing plate 84 drives the base 88 to move towards the side closer to the test motor 2. The base 88 drives the clamping plate 87 and the test pump 3 to move towards the side closer to the test motor 2. The clamping plate 87 drives the guide rod 8 5. Move towards the side closer to the test motor 2. The spherical section of the guide rod 85 moves along the inner side of the guide plate 86 towards the side closer to the test motor 2. Under the reaction force of the guide plate 86, the guide rod 85 drives the two clamping plates 87 to move towards the side closer to the meshing plate 84, thereby clamping and fixing the test pump 3. When the two clamping plates 87 are in contact with the test pump 3, the output end of the test pump 3 moves into the inner side of the coupling 4. The operator uses a screwdriver to tighten the bolts of the coupling 4, thereby fixing the test pump 3 to the test motor 2 and providing power to the test pump 3.

[0028] Specifically, two support plates 10 are fixed to the top of the bottom wall of the test bench 1, and the two support plates 10 are located on the side of the test pump 3 away from the test motor 2. Telescopic rods 11 are fixed to the inner side of the two support plates 10, and pressure plates 6 are fixed to the output ends of the two telescopic rods 11. Two connecting flanges are fixed to the inner side of the pressure plate 6, and flow meters are fixed to the inner side of the two connecting flanges. Two sealing rings 12 are fixed to the side of the pressure plate 6 near the test pump 3.

[0029] In this embodiment, the operator controls the extension of the two telescopic rods 11. The output ends of the two telescopic rods 11 drive the support plate 10 to move closer to the test pump 3, so that the two connecting flanges fit with the input and output ends of the test pump 3. The two sealing rings 12 can ensure the sealing of the connection.

[0030] Working Principle: Before using this device, check for any issues that might affect its operation. Before use, the operator connects the external oil source to the oil inlet 71 of the oil tank 7 using a pipeline. Then, the operator connects the oil outlet 72 of the oil tank 7 to one of the connecting flanges on the inner side of the support plate 10. The operator then connects the other connecting flange on the inner side of the support plate 10 to the oil inlet of the hydraulic cylinder 9. The oil tank 7 is then filled with oil. The operator places the test pump 3 on top of the base 88 and controls the feeding motor to rotate forward. The base 88 moves the clamping plate 87 and the test pump 3 closer to the test motor 2, simultaneously clamping and fixing the test pump 3. When the two clamping plates 87 are in contact with the test pump 3, the output end of the test pump 3 moves into the inner side of the coupling 4. The operator then tightens the bolts of the coupling 4 using a screwdriver. The test pump 3 is fixedly connected to the test motor 2 to provide power to the test pump 3. Then, the operator controls the two telescopic rods 11 to extend, and the two connecting flanges are attached to the input and output ends of the test pump 3. The operator starts the test motor 2, and the output end of the test motor 2 drives the test pump 3 to work through the coupling 4. The test pump 3 draws the oil from the inside of the oil tank 7 through the oil outlet 72 of the oil tank 7. The drawn oil passes through one of the connecting flanges, and then the test pump 3 pressurizes the oil and pumps it into the inside of the hydraulic cylinder 9 through the other connecting flange. The flow meter inside the connecting flange monitors the drawn oil in real time. The output end of the hydraulic cylinder 9 applies pressure to the bracket 5. The pressure sensor inside the bracket 5 tests the pressure. The flow meter and pressure sensor transmit the data to an external processor for processing so that the operator can analyze it.

[0031] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A hydraulic pump performance testing device, comprising a test bench (1), characterized in that: The test motor (2) is fixed to the top of the bottom wall of the test bench (1) by a connecting component. A feeding component (8) is provided on the top of the bottom wall of the test bench (1). A test pump (3) is provided on the inner side of the feeding component (8). An oil tank (7) is fixed to the top of the bottom wall of the test bench (1). A test piece is provided on the top of the bottom wall of the test bench (1). A pressure plate (6) is provided on the top of the bottom wall of the test bench (1). The feeding component (8) is assembled into a clamping test pump (3) and a moving test pump (3); The test piece was assembled to test the boosting performance of the test pump (3).

2. The hydraulic pump performance testing device according to claim 1, characterized in that: The output end of the test motor (2) is detachably connected to a coupling (4). An oil tank (7) is fixed on the top of the bottom wall of the test bench (1). An oil inlet (71) is installed through one side of the oil tank (7), and an oil outlet (72) is installed through one side of the oil tank (7), with the oil outlet (72) at the bottom of the oil inlet (71).

3. The hydraulic pump performance testing device according to claim 1, characterized in that: The feeding component (8) includes a feeding motor (81), which is fixed to the top of the bottom wall of the test bench (1). The feeding motor (81) is located on one side of the test motor (2). A threaded rod (82) is fixed to the output end of the feeding motor (81). Two limiting rods (83) are fixed to the top of the bottom wall of the test bench (1). A meshing plate (84) is installed on the outside of the threaded rod (82) by thread. The meshing plate (84) is slidably engaged with the outside of the two limiting rods (83). A base (88) is fixed to the top of the meshing plate (84). Two slots (89) are opened on the top of the base (88). Two clamping plates (87) are slidably engaged on the inside of the slots (89).

4. The hydraulic pump performance testing device according to claim 3, characterized in that: The feeding component (8) also includes two guide plates (86), which are fixed to the top of the bottom wall of the test bench (1) and located at the bottom of the base (88). The bottom of the two clamping plates (87) is fixed with guide rods (85), which are configured as square rod segments and spherical segments. The square rod segments are fixedly connected to the clamping plates (87), and the spherical segments are slidably engaged with the inside of the guide plates (86).

5. The hydraulic pump performance testing device according to claim 4, characterized in that: The test pump (3) is placed on top of the base (88) and is located on one side of the two clamps (87) that are close to each other.

6. The hydraulic pump performance testing device according to claim 1, characterized in that: The test piece includes a bracket (5) and a hydraulic cylinder (9). The bracket (5) is fixedly installed on the top of the bottom wall of the test bench (1) and is located on one side of the test pump (3). A pressure sensor is fixed inside the top of the bracket (5). The hydraulic cylinder (9) is fixedly installed on the top of the bottom wall of the test bench (1). The top of the output end of the hydraulic cylinder (9) is in contact with the bottom of the top wall of the bracket (5) and is located inside the bracket (5). The pressure sensor is located directly above the output end of the hydraulic cylinder (9).

7. The hydraulic pump performance testing device according to claim 1, characterized in that: The test bench (1) has two support plates (10) fixed on the top of its bottom wall. The two support plates (10) are located on the side of the test pump (3) away from the test motor (2). The inner sides of the two support plates (10) are fixed with telescopic rods (11). The output ends of the two telescopic rods (11) are fixed with pressure plates (6). The inner side of the pressure plates (6) is fixed with two connecting flanges. The inner side of the two connecting flanges is fixed with flow meters. The side of the pressure plates (6) near the test pump (3) is fixed with two sealing rings (12).

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