Liquid pump load table

Abstract

The utility model discloses a liquid pump load table which comprises a profile frame, a first supporting plate and a second supporting plate are fixedly arranged between a first cross beam and a second cross beam on the lower portion of the profile frame, the first supporting plate is close to one side of the profile frame, and the second supporting plate is close to the other side of the profile frame. An oil tank is fixed to the upper end of the first supporting plate. A return valve is arranged on the peripheral surface close to the top of the oil tank, and a starting valve is correspondingly arranged on the peripheral surface close to the bottom; a liquid pump is fixedly supported at the upper end part of the second supporting plate, a rotating shaft on one side of the liquid pump is connected with a motor shaft of a liquid pump driving motor, the liquid pump driving motor is controlled by a liquid pump driving motor controller, and the liquid pump driving motor is fixedly arranged at the upper end part of the second supporting plate; a liquid pump inlet connector of the liquid pump is connected with the starting valve through a first liquid pipeline, and an outlet connector of the liquid pump is connected into the backflow valve through a second liquid pipeline. A flow meter is arranged on the second liquid pipeline; and a damper is arranged on the liquid pipeline between the flow meter and the return valve.

Description

TECHNICAL FIELD

[0001] The utility model relates to device test technical field, specifically, relate to a liquid pump load platform. BACKGROUND

[0002] The liquid pump load platform is the important demonstration equipment of all kinds of liquid pump drive controller debugging parameter and demonstration function, and is also the indispensable important detection equipment of the test link before the liquid pump drive controller product leaves factory. In addition to the function test such as starting and stopping, variable speed and variable flow of liquid pump by liquid pump drive controller during the process of liquid pump drive controller debugging parameter, the output parameter of liquid pump drive motor and flowmeter also needs to be tracked measurement, data acquisition, data processing and analysis. This needs to design a professional liquid pump load platform for debugging the output signal parameter of liquid pump drive controller and testing the function of liquid pump drive controller, so as to complete the pre-delivery test work of different batches and models of liquid pump drive controller. SUMMARY

[0003] The present specification provides a kind of liquid pump load platform to overcome at least one technical problem existing in the related art.

[0004] According to the embodiment of the present specification, a kind of liquid pump load platform is provided, comprising:

[0005] The first support plate and the second support plate are fixed between the first crossbeam and the second crossbeam of the profile rack lower part, the first support plate is close to one side of the profile rack, and the second support plate is close to the other side of the profile rack;The upper end of the first support plate is fixedly supported with an oil tank, a reflux valve is arranged on the circumferential surface close to the top of the oil tank, and a starting valve is correspondingly arranged on the circumferential surface close to the bottom of the oil tank;

[0006] The upper end of the second support plate is fixedly supported with a liquid pump, the rotating shaft of one side of the liquid pump is connected with the motor shaft of liquid pump drive motor, the liquid pump drive motor is controlled by liquid pump drive motor controller, and the liquid pump drive motor is fixedly arranged on the upper end of the second support plate;

[0007] The inlet end of the liquid pump is fixed with the liquid pump inlet interface, the liquid pump inlet interface is connected with the starting valve through first liquid pipeline;The outlet end of the liquid pump is fixed with liquid pump outlet interface, and the liquid pump outlet interface is connected with the reflux valve through second liquid pipeline;Flow meter is arranged on the second liquid pipeline, and the flow meter is used for the flow of liquid flowing out of the liquid pump;The liquid pipeline portion between the flow meter and the reflux valve on the second liquid pipeline is provided with a damper, and the damper is used to reduce the flow rate of liquid flowing out of the liquid pump.

[0008] In some optional embodiments, a liquid pump outlet clamp is further fixed at the outlet end of the liquid pump, and is used to fix the connection between the liquid pump outlet interface and the outlet end of the liquid pump; a liquid pump inlet clamp is further fixed at the inlet end of the liquid pump, and is used to fix the connection between the liquid pump inlet interface and the inlet end of the liquid pump.

[0009] In some optional embodiments, a first universal wheel is fixed at the lower end of the profile rack near one end of the first cross beam, and a second universal wheel is fixed at the lower end of the profile rack near the other end of the first cross beam; a third universal wheel is fixed at the lower end of the profile rack near one end of the second cross beam, and a fourth universal wheel is fixed at the lower end of the profile rack near the other end of the second cross beam; the first, second, third and fourth universal wheels are used to move the profile rack.

[0010] In some optional embodiments, the liquid pump driving motor is a direct drive servo motor; the motor shaft of the liquid pump driving motor is located at the same horizontal position as the rotating shaft of the liquid pump.

[0011] In some optional embodiments, the liquid pump driving motor is fixed at the upper end of the second support plate through a motor base, and is fixed in the arc-shaped groove of the motor base through a motor clamp; the first and second motor mounting plates are fixedly connected to the bottom of the motor base; the first and second motor mounting plates are fixedly connected to the second support plate through threads;

[0012] The motor base, the first motor mounting plate and the second motor mounting plate are made of stainless steel.

[0013] In some optional embodiments, the first support plate, the liquid pump outlet interface, the damper and the liquid pump inlet interface are made of aluminum alloy.

[0014] In some optional embodiments, a plurality of fixed plates are fixed at the lower side of the oil tank, the lower end surface of each fixed plate is flush with the lower end surface of the oil tank, and each fixed plate is provided with a through screw hole for fixing the oil tank and the first support plate through screws.

[0015] In some optional embodiments, the liquid pump driving motor and the liquid pump are located at the same horizontal plane.

[0016] In some optional embodiments, the upper part of the profile frame is provided with a third cross beam and a fourth cross beam; wherein,

[0017] The third cross beam is located on the same side as the first cross beam, and the fourth cross beam is located on the same side as the second cross beam; a fifth cross beam is further fixedly arranged between the first cross beam and the third cross beam, one end of the fifth cross beam is fixedly connected with the first stand column of the profile frame, the other end of the fifth cross beam is fixedly connected with the second stand column of the profile frame, and the first stand column and the second stand column are located on the same side of the profile frame;

[0018] A sixth cross beam is further fixedly arranged between the second cross beam and the fourth cross beam, one end of the sixth cross beam is fixedly connected with the third stand column of the profile frame, the other end of the sixth cross beam is fixedly connected with the fourth stand column of the profile frame, and the third stand column and the fourth stand column are located on the other side of the profile frame.

[0019] In some optional embodiments, the first cross beam and the fifth cross beam are fixedly connected with a fifth stand column and a sixth stand column; wherein, the fifth stand column is close to one end of the first cross beam, and the sixth stand column is close to the other end of the first cross beam;

[0020] The second cross beam and the sixth cross beam are fixedly connected with a seventh stand column and an eighth stand column; wherein, the seventh stand column is close to one end of the second cross beam, and the eighth stand column is close to the other end of the second cross beam.

[0021] The beneficial effects of the embodiments of the present application are as follows: in the technical scheme of the present application, the oil tank, the first liquid pipeline connected with the starting valve fixed on the oil tank, the second liquid pipeline connected with the backflow valve fixed on the oil tank, the liquid pump between the first liquid pipeline and the second liquid pipeline constitute a liquid circulation loop. Among them, the liquid pump is connected with a liquid pump driving motor, the liquid pump driving motor is connected with a liquid pump driving motor controller, and the liquid pump driving motor serves as a control motion generator and an initial signal generator, drives the liquid pump to move according to the required control signal, and feeds back the motion state, ensures the motion accuracy and measurement feedback accuracy of the liquid pump load platform. The liquid pump driving motor controller controls the rotation of the liquid pump driving motor. In this way, the output parameters of the liquid pump driving motor and the flow meter can be tracked, measured, data collected, processed and analyzed, so as to ensure that the liquid pump driving controller can accurately control the working state of the liquid pump, including start-stop, speed change and flow change. These operations can help technicians evaluate the amplitude-frequency characteristics and phase-frequency characteristics between the liquid pump driving motor and the liquid pump, as well as their working efficiency. In addition, through the monitoring of these parameters, it can also be verified whether the function of the liquid pump driving controller meets the expected requirements, and potential problems can be found and solved in time. BRIEF DESCRIPTION OF DRAWINGS

[0022] In order to more clearly illustrate the technical solutions in the embodiments of the present specification or the related art, the drawings needed to be used in the embodiments or related art description will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the present specification, and for those skilled in the art, other drawings can also be obtained without creative labor on the basis of these drawings.

[0023] Figure 1 The overall structure schematic diagram of the liquid pump load platform provided in an embodiment of the present specification is shown in the figure.

[0024] Figure 2 The top view of the liquid pump load platform provided in the present specification is shown in the figure. Figure 1

[0025] Figure 3 The main structure schematic diagram of the profile rack of the liquid pump load platform provided in the present specification is shown in the figure. Figure 1

[0026] Figure 4 The component structure schematic diagram of the oil tank of the liquid pump load platform provided in the present specification is shown in the figure. Figure 1

[0027] Figure 5 The component structure schematic diagram of the liquid pump assembly of the liquid pump load platform provided in the present specification is shown in the figure. Figure 1

[0028] In the figure, 1 represents a profile rack, 2 represents a first support plate, 3 represents a universal wheel, 4 represents an oil tank, 5 represents a backflow valve, 6 represents a starting valve, 7 represents a liquid pump driving motor, 8 represents a liquid pump, 9 represents a liquid pump outlet clamp, 10 represents a liquid pump outlet interface, 11 represents a flow meter, 12 represents a damper, 13 represents a liquid pump inlet interface, 14 represents a liquid pump inlet clamp, 15 represents a motor base, 16 represents a motor clamp, 17 represents a motor mounting plate, 18 represents a liquid pump driving motor controller, 19 represents a first cross beam, 20 represents a second cross beam, 21 represents a second support plate, 22 represents a fixed plate, 23 represents a flow meter meter head, 24 represents a third cross beam, 25 represents a fourth cross beam, 26 represents a fifth cross beam, 27 represents a first vertical column, 28 represents a second vertical column, 29 represents a sixth cross beam, 30 represents a third vertical column, 31 represents a fourth vertical column, 32 represents a first liquid pipeline, 33 represents a second liquid pipeline, 34 represents a second motor mounting plate, 35 represents a fifth vertical column, 36 represents a sixth vertical column, 37 represents a seventh vertical column, and 38 represents an eighth vertical column. DETAILED DESCRIPTION

[0029] ​​​​The technical solutions in the embodiments of this specification will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0030] It should be noted that the terms "comprising" and "having," and any variations thereof, in the embodiments and drawings of this specification are intended to cover non-exclusive inclusion. For example, a process, method, system, product, or device that includes a series of steps or units is not limited to the steps or units listed, but may optionally include steps or units not listed, or may optionally include other steps or units inherent to these processes, methods, products, or devices.

[0031] The following is based on Figures 1 to 5 The structure of the liquid pump load platform provided by this utility model is described.

[0032] like Figure 1 As shown, Figure 1 This is a schematic diagram of the overall structure of a liquid pump load platform according to an embodiment of this specification. The liquid pump load platform includes a profile frame 1. A first support plate 2 and a second support plate 21 are fixedly disposed between a first crossbeam 19 and a second crossbeam 20 at the lower part of the profile frame 1. The first support plate 2 is located on one side of the profile frame 1, and the second support plate 21 is located on the other side of the profile frame 1. An oil tank 4 is fixedly supported at the upper end of the first support plate 2. A return valve 5 is disposed on the circumferential surface of the oil tank 4 near the top, and a start valve 6 is disposed on the circumferential surface of the oil tank 4 near the bottom. A liquid pump 8 is fixedly supported at the upper end of the second support plate 21. The rotating shaft on one side of the liquid pump 8 is connected to the motor shaft of the liquid pump drive motor 7. The liquid pump drive motor 7 is controlled by the liquid pump drive motor controller 18. The liquid pump drive motor 7 is fixedly installed at the upper end of the second support plate 21. The liquid pump inlet interface 13 of the liquid pump 8 is connected to the start valve 6 through the first liquid pipe 32. The liquid pump outlet interface 10 of the liquid pump 8 is connected to the return valve 5 through the second liquid pipe 33. A flow meter 11 is installed on the second liquid pipe 33. The flow meter 11 is used to measure the flow rate of the liquid flowing out of the liquid pump 8. A damper 12 is installed on the liquid pipe section of the second liquid pipe 33 between the flow meter 11 and the return valve 5. The damper 12 is used to reduce the flow rate of the liquid flowing out of the liquid pump 8, so that the liquid returns to the oil tank 4 more smoothly, reducing the fluctuations and impacts in the liquid flow process, thereby making the operation of the entire system more stable and smooth.

[0033] In the above scheme, the main function of the liquid pump drive motor controller 18 is to control the rotation of the liquid pump drive motor 7, so as to realize the test of the functions such as start-stop, speed change and flow change of the liquid pump 8. In this way, the function test of the liquid pump drive controller of different batches and models before leaving the factory can be completed. In addition, it also serves as a control motion generator and an initial signal generator, drives the liquid pump 8 to move according to the required control signal, and feeds back the motion state, so as to ensure that the motion accuracy of the liquid pump load table and the measurement feedback accuracy reach a high level.

[0034] The liquid pump load table introduced in the foregoing can be logically divided into three parts: a base assembly, an oil tank assembly and a liquid pump assembly. The base assembly is used to fix the oil tank assembly and the liquid pump assembly, and also refers to the installation and movement base of the entire liquid pump load table. The oil tank assembly includes an oil tank, a return valve and a starting valve arranged on the oil tank, and the main function of the liquid pump assembly is to drive the liquid pump to work according to the control signal, and to ensure that the output flow of the liquid pump can be accurately measured and adjusted, and at the same time, the liquid return is more stable through the action of the damper.

[0035] In the technical scheme of the present application, the oil tank, the first liquid pipeline connected with the starting valve fixed on the oil tank, the second liquid pipeline connected with the return valve fixed on the oil tank, the liquid pump, and the liquid pump connected between the first liquid pipeline and the second liquid pipeline constitute a liquid circulation loop. The liquid pump is connected with a liquid pump drive motor, the liquid pump drive motor is connected with a liquid pump drive motor controller, the function of the liquid pump drive motor is to serve as a control motion generator and an initial signal generator, drive the liquid pump to move according to the required control signal, and feed back the motion state, so as to ensure the motion accuracy of the liquid pump load table and the measurement feedback accuracy. The liquid pump drive motor controller controls the rotation of the liquid pump drive motor. In this way, the output parameters of the liquid pump drive motor and the flowmeter can be tracked, measured, data collected, processed and analyzed, so as to ensure that the liquid pump drive controller can accurately control the working state of the liquid pump, including start-stop, speed change and flow change. These operations can help technicians to evaluate the amplitude-frequency characteristic and phase-frequency characteristic between the liquid pump drive motor and the liquid pump, as well as their working efficiency. In addition, through the monitoring of these parameters, it can also verify whether the function of the liquid pump drive controller meets the expected requirements, and timely find and solve potential problems.

[0036] In order to ensure stable connection between relevant components, prevent loosening or leakage caused by vibration during work, a liquid pump outlet clamp 9 can be fixed at the outlet end of the liquid pump 8, which is used to fix the connection between the liquid pump outlet interface 10 and the outlet end of the liquid pump 8; and a liquid pump inlet clamp 14 is fixed at the inlet end of the liquid pump 8, which is used to fix the connection between the liquid pump inlet interface 13 and the inlet end of the liquid pump 8. Through such arrangement, the connection between the liquid pump outlet interface or inlet interface and the liquid pump can be ensured to be stable, preventing leakage or loosening during liquid flow, thereby ensuring the stability of the liquid pump assembly output and the sealing of the system.

[0037] In some cases, it is necessary to move the position of the liquid pump load table, so as Figure 3 As shown, a first universal wheel 3 can be fixed at one end of the first cross beam 19 below the profile rack 1, and a second universal wheel can be fixed at the other end of the first cross beam 19 below the profile rack 1. Correspondingly, a third universal wheel can be fixed at one end of the second cross beam 20 below the profile rack 1, and a fourth universal wheel can be fixed at the other end of the second cross beam 20 below the profile rack 1; the first, second, third and fourth universal wheels are used to move the profile rack 1.

[0038] In this scheme, the universal wheel is part of the base assembly, which mainly functions to make the entire liquid pump load table have good mobility and flexibility, facilitating single or double person carrying and transportation, which helps to improve the applicability of the equipment in different scenarios, such as more convenient adjustment of position when debugging parameters, pre-shipment testing, etc.

[0039] In actual scenarios, the liquid pump drive motor 7 can adopt a direct drive servo motor; and by adjusting, the motor shaft of the liquid pump drive motor and the rotating shaft of the liquid pump 8 are located at the same horizontal position. In this scheme, using a direct drive servo motor can improve the accuracy of the system, because such a motor can directly drive the liquid pump without additional transmission devices, thereby reducing the error sources in the mechanical structure. In addition, during the installation stage, static balance adjustment and calibration can also be performed on the liquid pump so that the liquid pump drive motor and the liquid pump rotating shaft are at the same horizontal position, which enhances the stability and accuracy of the system by optimizing the mechanical structure, and reduces the influence of unbalanced torque on the system, thereby further improving the accuracy of the system from the structure of the mechanism.

[0040] Considering that the liquid pump driving motor 7 will generate vibration during operation, the vibration will on the one hand cause the liquid in the liquid pipeline to flow unstably, which may affect the data acquisition quality of monitoring equipment such as the flow meter, and on the other hand accelerate the wear of the liquid pump and related components (such as the connecting piece), shorten the service life. Therefore, in the optional scheme, the liquid pump driving motor 7 can be fixed on the upper end of the second support plate 21 through the motor base 15. Specifically, the motor base 15 can be first fixed on the upper end of the second support plate 21, and then the liquid pump driving motor 7 is fixed on the motor base 15, as shown in Figure 5 The first motor mounting plate 17 and the second motor mounting plate 34 are fixedly connected on the two sides of the bottom of the motor base 15. The first motor mounting plate 17 and the second motor mounting plate 34 are fixedly connected with the second support plate 21 through threads, that is, the first motor mounting plate 17 and the second motor mounting plate 34 are provided with through thread holes, and the second support plate 21 is also provided with thread holes at the corresponding positions, and the first motor mounting plate 17 and the second motor mounting plate 34 are fixed on the second support plate 21 through screws, so as to fix the motor base 15 with the second support plate 21, and also help to ensure the stability of the liquid pump load table and the overall structural rigidity. In practice, the motor base 15, the first motor mounting plate 17 and the second motor mounting plate 34 are made of stainless steel, so as to improve the stability of the liquid pump load table and the overall structural rigidity.

[0041] In the optional scheme, the first support plate 2, the liquid pump outlet interface 10, the damper 12 and the liquid pump inlet interface 13 can be made of aluminum alloy. The aluminum alloy has good machining performance, high strength and relatively low residual stress after machining, which helps to reduce the overall weight of the liquid pump load table, while ensuring the stability and rigidity of the structure.

[0042] Considering that the oil tank 4 will displace or sway during the operation of the liquid pump load table, which will affect the stability of the whole system. At the same time, if the position of the oil tank 4 changes, it may cause the liquid flow path to change, thereby affecting the normal work of the liquid pump 8, such as causing unstable flow, and long-term movement and sway may also generate additional stress on the connecting pipeline and other components, increasing the risk of damage. Therefore, the oil tank 4 needs to be fixed. In the technical scheme of the present application, as shown in Figure 4As shown, several fixed plates 22 can be fixed below the side of the oil tank 4, the lower end surface of each fixed plate is flush with the lower end surface of the oil tank 4, each fixed plate is provided with a through threaded hole, and a threaded hole is provided at the corresponding position of the first support plate 2, the fixed plate and the first support plate 2 are fixedly connected through screws, thereby achieving the purpose of fixing the oil tank 4 on the first support plate 2, so that the liquid pump load table does not produce relative displacement or shaking during operation. In practice, the accuracy requirement of the relative position of the oil tank assembly and the first support plate 2 can be realized by maintaining high flatness and perpendicularity processing and assembly requirements.

[0043] Since the motor seat 15 is fixed on the motor mounting plate 17 and fixed with the profile rack 1, the liquid pump drive motor controller 18 is also fixed on the profile rack 1, and can be adjusted to keep the liquid pump drive motor 7, the liquid pump 8 and the related components on the same horizontal plane, thereby improving the accuracy and stability of the system.

[0044] In the technical scheme of the present application, the profile rack 1 is used to fix the oil tank assembly and the liquid pump assembly, and is also the installation and movement base of the entire liquid pump load table. The structure of the profile rack 1 will be described below.

[0045] As shown in the schematic diagram of the main structure of the profile rack of the liquid pump load table provided in the present application, in the profile rack 1, the profile rack 1 is provided with a plurality of fixed plates 22, and the fixed plates 22 are fixed on the lower side of the profile rack 1. Figure 3 As shown, Figure 3 As shown, Figure 1 As shown in the schematic diagram of the main structure of the profile rack of the liquid pump load table provided in the present application, in the profile rack 1, the profile rack 1 is provided with a plurality of fixed plates 22, and the fixed plates 22 are fixed on the lower side of the profile rack 1. Figure 3In the specific embodiment, the upper portion of the profile frame 1 is provided with a third cross beam 24 and a fourth cross beam 25; the third cross beam 24 is located on the same side as the first cross beam 19, and the fourth cross beam 25 is located on the same side as the second cross beam 20; a fifth cross beam 26 is further fixedly arranged between the first cross beam 19 and the third cross beam 24, one end of the fifth cross beam 26 is fixedly connected with a first vertical column 27 of the profile frame 1, the other end of the fifth cross beam 26 is fixedly connected with a second vertical column 28 of the profile frame 1, the first vertical column 27 and the second vertical column 28 are located on the same side of the profile frame 1; a sixth cross beam 29 is further fixedly arranged between the second cross beam 20 and the fourth cross beam 25, one end of the sixth cross beam 29 is fixedly connected with a third vertical column 30 of the profile frame 1, the other end of the sixth cross beam 29 is fixedly connected with a fourth vertical column 31 of the profile frame 1, the third vertical column 30 and the fourth vertical column 31 are located on the other side of the profile frame 1. The first cross beam 19 and the fifth cross beam 26 are fixedly connected with a fifth vertical column 35 and a sixth vertical column 36; one end of the fifth vertical column 35 is close to the first cross beam 19, and the other end of the sixth vertical column 36 is close to the first cross beam 19; the second cross beam 20 and the sixth cross beam 29 are fixedly connected with a seventh vertical column 37 and an eighth vertical column 38; one end of the seventh vertical column 37 is close to the second cross beam 20, and the other end of the eighth vertical column 38 is close to the second cross beam 20. Through the design of the above scheme, the stability of the liquid pump load table in work and the overall structural rigidity can be ensured, and the good disassembly and assembly of the structure can also be better realized.

[0046] Those skilled in the art can understand that the drawings are only schematic diagrams of an embodiment, and the modules or flows in the drawings are not necessarily necessary for implementing the present application.

[0047] Those skilled in the art can understand that the modules in the device in the embodiment can be distributed in the device in the embodiment according to the embodiment description, or can be located in one or more devices different from the present embodiment. The modules in the above embodiment can be combined into one module, or can be further split into multiple sub-modules.

[0048] Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present application, and not to limit them; although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that they can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacement for part of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present application.

Claims

1. A liquid pump load stand characterized by, The utility model relates to a profile frame (1), first crossbeam (19) and second crossbeam (20) between lower part of profile frame (1) fixedly arranged with first support plate (2) and second support plate (21), first support plate (2) is close to one side of profile frame (1), second support plate (21) is close to the other side of profile frame (1), the upper end of first support plate (2) is fixedly supported with oil tank (4), oil tank (4) is close to the circumferential surface on top and is provided with backflow valve (5), oil tank (4) is close to the circumferential surface on bottom and is provided with starting valve (6) correspondingly, The upper end of second support plate (21) is fixedly supported with liquid pump (8), the rotating shaft of one side of liquid pump (8) is connected with motor shaft of liquid pump drive motor (7), liquid pump drive motor (7) is controlled by liquid pump drive motor controller (18), liquid pump drive motor (7) is fixedly arranged on the upper end of second support plate (21), The inlet end of liquid pump (8) is fixed with liquid pump inlet interface (13), liquid pump inlet interface (13) is connected with starting valve (6) through first liquid pipeline (32) at first liquid pipeline (32), the outlet end of liquid pump (8) is fixed with liquid pump outlet interface (10), liquid pump outlet interface (10) is connected with backflow valve (5) through second liquid pipeline (33), flowmeter (11) is arranged on second liquid pipeline (33), flowmeter (11) is used for the flow of liquid flowing out of liquid pump (8), the liquid pipeline portion of second liquid pipeline (33) between flowmeter (11) and backflow valve (5) is provided with damper (12), damper (12) is used for reducing the flow rate of liquid flowing out of liquid pump (8). Liquid pump outlet clamp (9) is further fixed on the outlet end of liquid pump (8), liquid pump outlet clamp (9) is used for fixing the connecting place of liquid pump outlet interface (10) and the outlet end of liquid pump (8), liquid pump inlet clamp (14) is further fixed on the inlet end of liquid pump (8), liquid pump inlet clamp (14) is used for fixing the connecting place of liquid pump inlet interface (13) and the inlet end of liquid pump (8).

2. The liquid pump load table of claim 1, wherein, The lower side of profile frame (1) is fixedly provided with first universal wheel (3) near one end of first crossbeam (19), the lower side of profile frame (1) is fixedly provided with second universal wheel near the other end of first crossbeam (19), the lower side of profile frame (1) is fixedly provided with third universal wheel near one end of second crossbeam (20), the lower side of profile frame (1) is fixedly provided with fourth universal wheel near the other end of second crossbeam (20), first universal wheel, second universal wheel, third universal wheel and fourth universal wheel are used for moving profile frame (1).

3. The liquid pump load table of claim 1, wherein, Direct drive servo motor is adopted for liquid pump drive motor (7), the motor shaft of liquid pump drive motor is located in the same horizontal position with the rotating shaft of liquid pump (8).

4. The liquid pump load table of claim 1, wherein, ​ 5. The liquid pump load table of claim 1, wherein, The liquid pump driving motor (7) is fixedly arranged at the upper end of the second support plate (21) through a motor base (15), and the liquid pump driving motor (7) is fixed in the arc-shaped groove of the motor base (15) through a motor clamp (16); the two side bottoms of the motor base (15) are fixedly connected with a first motor mounting plate (17) and a second motor mounting plate (34); the first motor mounting plate (17) and the second motor mounting plate (34) are fixedly connected with the second support plate (21) through threads. The motor base (15), the first motor mounting plate (17) and the second motor mounting plate (34) are made of stainless steel.

6. The liquid pump load table of claim 1, wherein, The first support plate (2), the liquid pump outlet interface (10), the damper (12) and the liquid pump inlet interface (13) are made of aluminum alloy.

7. The liquid pump load table of claim 1, wherein, A plurality of fixed plates (22) are fixedly arranged below the side of the oil tank (4), the lower end surface of each fixed plate in the plurality of fixed plates is flush with the lower end surface of the oil tank (4), each fixed plate in the plurality of fixed plates is provided with a through threaded hole, and the through threaded hole is used for fixing the oil tank (4) and the first support plate (2) through screws.

8. The liquid pump load table of claim 1, wherein, The liquid pump driving motor (7) and the liquid pump (8) are located on the same horizontal plane.

9. The liquid pump load table of claim 1, wherein, The upper part of the profile frame (1) is provided with a third cross beam (24) and a fourth cross beam (25); wherein, The third cross beam (24) is located on the same side as the first cross beam (19), and the fourth cross beam (25) is located on the same side as the second cross beam (20); a fifth cross beam (26) is further fixedly arranged between the first cross beam (19) and the third cross beam (24), one end of the fifth cross beam (26) is fixedly connected with a first vertical column (27) of the profile frame (1), the other end of the fifth cross beam (26) is fixedly connected with a second vertical column (28) of the profile frame (1), and the first vertical column (27) and the second vertical column (28) are located on the same side of the profile frame (1); A sixth cross beam (29) is further fixedly arranged between the second cross beam (20) and the fourth cross beam (25), one end of the sixth cross beam (29) is fixedly connected with a third vertical column (30) of the profile frame (1), and the other end of the sixth cross beam (29) is fixedly connected with a fourth vertical column (31) of the profile frame (1), and the third vertical column (30) and the fourth vertical column (31) are located on the other side of the profile frame (1).

10. The liquid pump load table of claim 9, wherein, The fifth vertical column (35) is close to one end of the first cross beam (19), and the sixth vertical column (36) is close to the other end of the first cross beam (19). The seventh stand column (37) is close to one end of the second cross beam (20), and the eighth stand column (38) is close to the other end of the second cross beam (20).

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