Water pump testboard

Abstract

The utility model provides a water pump testboard, relates to the technical field of pump body testing devices, and solves the technical problems that manpower resources are wasted and the efficiency is low due to excessive manual participation in the prior art. The water pump testboard comprises a main body support, a water tank, a first linear module, a second linear module, a detection assembly and a control system, a motor assembly is arranged at the driving end of the first linear module, the second linear module is arranged at the driving end of the first linear module, the second linear module is located above the water tank, and the detection assembly is located above the water tank. A one-way valve is arranged at the driving end of the second linear module, the second linear module can drive the one-way valve to be connected with the motor assembly to form a pump unit, the first linear module can drive the pump unit to extend below the water surface in the water tank or be away from the water tank, and a water return pipe is connected between the one-way valve and the water tank. The water pump detection device is used for water pump detection, part of human participation is replaced by linear module driving, and the problems of human resource waste and low efficiency are avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of pump body testing devices, in particular to a water pump testing bench. Background Art

[0002] Screw pumps need to undergo performance tests before leaving the factory to test whether the coordination between the stator and the rotor can achieve the expected flow rate. The current operating method is that workers install the screw pump into a pump unit assembly and then manually place it in a water tank for testing. During the test, workers also need to manually adjust the water outlet pressure and motor speed, and use a stopwatch and a measuring cup to record the test time and flow rate. The recorded data is also manually input. Too much manual participation wastes human resources and is inefficient. In addition, the pump unit assembly is heavy, and the handling process is not only labor-intensive but also prone to falling. Utility Model Content

[0003] The purpose of the utility model is to provide a water pump test bench, which reduces manual participation and solves the technical problems of excessive manual participation, waste of human resources and low efficiency in the prior art. The preferred technical solution among the many technical solutions provided by the utility model can produce many technical effects as described below.

[0004] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0005] The water pump test bench provided by the utility model comprises:

[0006] Main frame;

[0007] A water tank, the water tank being arranged at the lower part of the main body support;

[0008] A first linear module, wherein the first linear module is disposed on the main support, and a motor assembly is disposed on a driving end of the first linear module;

[0009] A second linear module, the second linear module is arranged on the driving end of the first linear module, the second linear module is located above the water tank, a one-way valve is arranged on the driving end of the second linear module, the second linear module can drive the one-way valve to connect with the motor assembly to form a pump unit, the first linear module can drive the pump unit to extend below the water surface in the water tank or away from the water tank, and a return pipe is connected between the one-way valve and the water tank;

[0010] A detection component, wherein the detection component is arranged on the water return pipe;

[0011] And a control system, the motor component and the detection component are both connected to the control system.

[0012] Preferably, the first linear module includes a first linear driving member, a first mounting plate, a second mounting plate and a first guide portion, one end of the first linear driving member is connected to the main body bracket, and the other end is provided with the first mounting plate, the first mounting plate and the second mounting plate are connected through the first guide portion, the second mounting plate is located below the first mounting plate, and the motor assembly is provided on the second mounting plate.

[0013] Preferably, the second linear module includes a second linear driving member and a third mounting plate, the second linear driving member is arranged on the first mounting plate, the driving end of the second linear driving member is connected to the third mounting plate, the third mounting plate is slidably connected to the first guide portion, the third mounting plate is located between the first mounting plate and the second mounting plate, and the one-way valve is arranged on the third mounting plate.

[0014] Preferably, it also includes a positioning cylinder arranged on the first mounting plate, a positioning plate is arranged on the main body bracket, a positioning hole is arranged on the positioning plate, the cylinder rod of the positioning cylinder can extend into the positioning hole, and the telescopic direction of the positioning cylinder is perpendicular to the driving direction of the first linear drive component.

[0015] Preferably, it further comprises a second guide portion which is arranged on the main support and in the same direction as the first linear drive member, and the first mounting plate is slidably arranged on the second guide portion.

[0016] Preferably, the motor assembly includes a motor, a long tube, a steel connection, a stator and a rotor, the long tube is arranged on the second mounting plate, the motor is arranged at the bottom end of the long tube, the steel connection is arranged in the long tube and one end is connected to the motor, the other end of the steel connection is arranged with the rotor, the stator is connected to the long tube, the rotor is located in the stator, and the second linear module drives the one-way valve to press against the end of the stator away from the long tube.

[0017] Preferably, a side hole is provided on the side wall of the long tube at one end of the steel connection connected to the rotor, and a wrench can be inserted into the side hole and act on the outer hexagon of the steel connection.

[0018] Preferably, it also includes an electric regulating valve arranged on the return pipe, and the electric regulating valve is connected to the control system.

[0019] Preferably, the detection component comprises an electronic flow meter and a pressure sensor, and the electronic flow meter and the pressure sensor are both arranged on the return pipe between the electric regulating valve and the one-way valve.

[0020] Preferably, the control system includes an information acquisition module, a controller and a computer, the pressure sensor, the electronic flow meter, the controller and the computer are all connected to the information acquisition module, and the controller is connected to the motor.

[0021] This application adopts the above technical solution, which has at least the following beneficial effects:

[0022] The water pump test bench includes a main support, a water tank, a first linear module, a second linear module, a detection component and a control system. The water tank is arranged at the lower part of the main support; the first linear module is arranged on the main support, and a motor component is arranged on the driving end of the first linear module; the second linear module is arranged on the driving end of the first linear module, the second linear module is located above the water tank, a one-way valve is arranged on the driving end of the second linear module, the second linear module can drive the one-way valve to connect with the motor component to form a pump unit, the first linear module can drive the pump unit to extend below the water surface in the water tank or away from the water tank, and a return pipe is connected between the one-way valve and the water tank; the detection component is arranged on the return pipe; the motor component and the detection component are both connected to the control system. The second linear module drives the one-way valve to be connected to the motor assembly to form a pump unit. This step does not require manual installation and disassembly, saving manpower. The first linear module drives the second linear module thereon to move, so that the pump unit is immersed in water or removed from water as a whole. In this way, there is no need for manual transportation of the pump unit to be immersed in water or removed, further reducing human participation and further avoiding the problems of waste of human resources and inefficiency.

[0023] It should be understood that the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0025] Figure 1 It is a schematic diagram of the overall structure of the water pump test bench provided by the embodiment of the utility model;

[0026] Figure 2 It is a partial structural schematic diagram of a water pump test bench provided by an embodiment of the utility model;

[0027] Figure 3 yes Figure 2A schematic diagram of the enlarged structure of the local A in the middle;

[0028] Figure 4 yes Figure 2 A schematic diagram of the enlarged structure of the local B in the middle;

[0029] Figure 5 It is a schematic diagram of the structure of a motor assembly provided in an embodiment of the utility model.

[0030] In the figure, 1, main bracket; 2, water tank; 3, first linear module; 4, second linear module; 5, detection component; 6, control system; 7, motor component; 8, one-way valve; 9, return pipe; 10, first linear drive; 11, first mounting plate; 12, second mounting plate; 13, first guide part; 14, second linear drive; 15, third mounting plate; 16, positioning cylinder; 17, positioning plate; 18, positioning hole; 19, second guide part; 20, motor; 21, long tube; 22, steel connection; 23, stator; 24, rotor; 25, side hole; 26, electric regulating valve; 27, electronic flow meter; 28, pressure sensor; 29, information acquisition module; 30, controller; 31, computer. DETAILED DESCRIPTION

[0031] In order to make the purpose, technical solution and advantages of the utility model clearer, the technical solution of the utility model will be described in detail below. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other implementation methods obtained by ordinary technicians in this field without creative work belong to the scope of protection of the utility model.

[0032] The specific embodiment of the utility model provides a water pump test bench, combined with the attached Figure 1 As shown, it mainly includes a main frame 1, a water tank 2, a first linear module 3, a second linear module 4, a detection component 5 and a control system 6.

[0033] The water tank 2 is arranged at the lower part of the main support 1 and is a tool for testing the test water. During the test, the pump unit extends below the water in the water tank 2 to perform the test.

[0034] The first linear module 3 is arranged on the main support 1, and a motor assembly 7 is arranged on the driving end of the first linear module 3, and the first linear module 3 can linearly drive the motor assembly 7 to move;

[0035] The second linear module 4 is arranged on the driving end of the first linear module 3. The second linear module 4 is located above the water tank 2. The first linear module 3 can drive the second linear module 4 to move toward the water tank 2 or away from the water tank 2 as a whole. A one-way valve 8 is arranged on the driving end of the second linear module 4. The second linear module 4 can drive the one-way valve 8 to connect with the motor assembly 7 to form a pump unit. In this way, the second linear module 4 and the pump unit can be driven by the first linear module 3 to move as a whole, and the pump unit can be extended as a whole below the water surface in the water tank 2 or away from the water tank 2. A return pipe 9 is connected between the one-way valve 8 and the water tank 2, so that the water pumped out by the pump unit during the test flows back into the water tank 2;

[0036] The detection component 5 is arranged on the water return pipe 9, and is used to detect the water flow in the water return pipe and send the detection data to the control system 6;

[0037] The motor assembly 7 and the detection assembly 5 are both connected to the control system 6 . The control system 6 can receive data information sent by the detection assembly 5 on the one hand, and control the operation of the motor assembly 7 on the other hand.

[0038] The water pump test bench described above drives the one-way valve 8 to connect with the motor assembly 7 through the second linear module 4 to form a pump unit. The staff is no longer required to perform the complicated operation of installing the one-way valve 8 on the motor assembly 7 before the test and then removing the one-way valve 8 after the test, thereby reducing manual intervention and saving time. Secondly, the first linear module 3 is used to drive the pump unit as a whole to be immersed in water for testing, and the pump unit is lifted up after the test. This aspect can also reduce manual intervention and save labor.

[0039] In a specific embodiment of the present application, Figure 1 and attached Figure 2 As shown, the first linear module 3 may include a first linear drive member 10, a first mounting plate 11, a second mounting plate 12 and a first guide portion 13. One end of the first linear drive member 10 is connected to the main bracket 1, and the other end is provided with the first mounting plate 11. The first linear drive member 10 is the main linear drive structure. The first linear drive member 10 may adopt a linear drive mechanism such as a linear motor, a cylinder, or an oil cylinder; the first mounting plate 11 and the second mounting plate 12 are connected by the first guide portion 13. The first mounting plate 11 and the second mounting plate 12 are horizontally arranged with each other, the first guide portion 13 is vertically connected before the first mounting plate 11 and the second mounting plate 12, and the first guide portion 13 is vertically arranged, the water tank 2 is located below the second mounting plate 12, the second mounting plate 12 is located below the first mounting plate 11, and the motor assembly 7 is arranged on the second mounting plate 12.

[0040] Specifically, the number of the first guide portions 13 can be two or more to ensure a strong connection strength between the first mounting plate 11 and the second mounting plate 12, and to ensure that the second mounting plate 12 can stably set the motor assembly 7. In the present application, the number of the first guide portions 13 is two, and they are respectively arranged on both sides of the motor assembly 7.

[0041] In another specific embodiment of the present application, Figure 1 and attached Figure 2 As shown, the second linear module 4 includes a second linear driver 14 and a third mounting plate 15. The second linear driver 14 is the main linear driving structure. The second linear driver 14 can adopt a linear driving mechanism such as a linear motor, a cylinder, or an oil cylinder. The second linear driver 14 is arranged on the first mounting plate 11, and the second linear driver 14 is fixedly installed through the first mounting plate 11. The driving end of the second linear driver 14 is connected to the third mounting plate 15. The third mounting plate 15 is slidably connected to the first guide portion 13. The first guide portion 13 can be a guide rod. The third mounting plate 15 and the first guide portion 13 can be connected by a sliding sleeve. The sliding sleeve can be slidably arranged on the guide rod, and the sliding sleeve is connected to the third mounting plate 15. Since the number of the first guide portions 13 in the present application can be two or more, the number and position of the sliding sleeve are also set accordingly. The third mounting plate 15 is located between the first mounting plate 11 and the second mounting plate 12, and the one-way valve 8 is arranged on the third mounting plate 15. In this way, the second linear drive member 14 can drive the third mounting plate 15 and carry the one-way valve 8 to move toward and abut the motor assembly 7 .

[0042] In another specific embodiment of the present application, Figure 2 and attached Figure 4 As shown, it also includes a positioning cylinder 16 arranged on the first mounting plate 11. Specifically, the first mounting plate 11 is located at the upper end surface of the positioning cylinder 16. A positioning plate 17 is arranged on the main bracket 1. A positioning hole 18 is arranged on the positioning plate 17. The cylinder rod of the positioning cylinder 16 can extend into the positioning hole 18. The telescopic direction of the positioning cylinder 16 is perpendicular to the driving direction of the first linear drive member 10. Specifically, this positioning plate 17 is arranged close to the top of the main bracket 1, so that when the first linear module 3 lifts the pump unit to the highest point, this positioning cylinder 16 can be used for positioning.

[0043] In another specific embodiment of the present application, Figure 1 and attached Figure 2 As shown, it also includes a second guide portion 19 arranged on the main bracket 1 and in the same direction as the first linear drive member 10. The first mounting plate 11 can be slidably arranged on the second guide portion 19. The second guide portion 19 can be a guide rod, and the first mounting plate 11 is guided and limited by the guide rod. The first mounting plate 11 and the guide rod are connected by a sliding sleeve.

[0044] The number of guide rods can be two groups, which are respectively arranged on the frames on both sides of the main frame 1, so that the first mounting plate 11 is more stable. The number of guide rods in each group can also be two or more as needed.

[0045] In another specific embodiment of the present application, Figure 5 As shown, the motor assembly 7 includes a motor 20, a long tube 21, a steel connection 22, a stator 23 and a rotor 24, wherein the motor 20, the long tube 21 and the steel connection 22 are common components of the screw pump of this model to be tested, the long tube 21 is arranged on the second mounting plate 12 to play a fixing role, the motor 20 is arranged at the bottom end of the long tube 21, the steel connection 22 is arranged in the long tube 21 and one end is connected to the motor 20, the other end of the steel connection 22 is provided with a rotor 24, the stator 23 is connected to the long tube 21, and the rotor 24 is located in the stator 23, and the second linear module 4 drives the one-way valve 8 to press against the end of the stator 23 away from the long tube 21; the one-way valve 8 is also a common component of the screw pump of this model. Before testing, the motor 20, the long tube 21 and the steel connection 22 are installed on the second mounting plate 12, and the one-way valve 8 is set on the third mounting plate 15. These components do not need to be disassembled before testing this batch of screw pumps, because the actual test is actually to test whether the water output of the stator 23 and the rotor 24 is normal.

[0046] In another specific embodiment of the present application, a side hole 25 is provided on the side wall of the long tube 21 at one end of the steel connection 22 connected to the rotor 24, and a wrench can be inserted from the side hole 25 and act on the outer hexagon of the steel connection 22. By providing this side hole 25, when the rotor 24 and the steel connection 22 are disassembled after the test is completed, the steel connection 22 can be directly fixed by a wrench, and the rotor 24 can be screwed to remove it, while in the prior art, the long tube 21 must be disassembled to separate the rotor 24 and the steel connection 22. The design of this side hole 25 can reduce the steps of disassembly and assembly, reduce labor intensity, and improve test efficiency.

[0047] In another specific embodiment of the present application, Figure 1 As shown, it also includes an electric regulating valve 26 arranged on the return pipe 9 , the electric regulating valve 26 is connected to the control system 6 , and the electric regulating valve 26 is used to adjust the pressure of the water outlet of the one-way valve 8 .

[0048] Specifically, the detection component 5 includes an electronic flow meter 27 and a pressure sensor 28, both of which are arranged on the return pipe 9 between the electric regulating valve 26 and the one-way valve 8, and the pressure sensor 28 is arranged close to the one-way valve 8, for collecting the water flow pressure at the outlet of the one-way valve 8 and sending it to the control system 6.

[0049] Specifically, the control system 6 includes an information acquisition module 29, a controller 30 and a computer 31. The pressure sensor 28, the electronic flow meter 27, the controller 30 and the computer 31 are all connected to the information acquisition module 29, and the controller 30 is connected to the motor 20. The information acquisition module 29 can collect data information detected by the pressure sensor 28 and the electronic flow meter 27, and feed it back to the computer 31.

[0050] The working principle of the water pump test bench provided in this application is as follows:

[0051] 1. Pre-install the motor 20, long pipe 21, steel connection 22 and one-way valve 8 of the model to be tested.

[0052] 2. Install the rotor 24 onto the steel connection 22, and then put the stator 23 onto the rotor 24 to complete the assembly.

[0053] 3. Press the down button of the second linear drive member 14 , and the one-way valve 8 is pressed against the stator 23 by the pushing action of the second linear drive member 14 , and the stator 23 is pressed against the long tube 21 at the same time;

[0054] Then, the downward button of the first linear drive member 10 is pressed to lower the pump unit below the liquid level of the water tank.

[0055] 4. Open the preset control program in the computer 31, input the model and serial number of the test stator 23 and rotor 24, start the motor 20 to start the test.

[0056] 4.1 After the program sets the speed requirement, the computer 31 sends a lower-level control signal to the controller 30 according to the preset speed data, and controls the speed of the motor 20 through the controller 30; after operation, the pressure sensor 28 feeds back the pressure information to the computer 31 in real time, and controls the opening of the electric regulating valve 26 to adjust the pressure at the outlet of the one-way valve 8 according to the pressure signal fed back by the pressure sensor 28; when the value measured by the pressure sensor 28 is consistent with the value set by the program, the electric regulating valve 26 is stopped from being adjusted. The computer 31 waits for the flow data fed back by the electronic flow meter to stabilize, and then starts to record the flow, motor speed, outlet pressure of the one-way valve, motor voltage and motor current and other values.

[0057] 4.2 After completing a test step in this way, the next test will be automatically performed until all tests are completed. It should be noted that the subsequent tests are all current conventional technical solutions, so no further details will be given.

[0058] 5. After completing the test of this set of stators 23 and rotors 24, press the up buttons of the first linear drive 10 and the second linear drive 14 in turn, and remove the stator 23 and the rotor 24 after the linear drives stop moving upward to complete the test.

[0059] 6. Repeat the above steps to complete the inspection of this batch of products.

[0060] In the present utility model, the terms "one embodiment", "some embodiments", "examples", "specific examples", "some examples", etc. mean that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present utility model. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the described specific features, structures, materials or characteristics can be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art can combine and combine different embodiments or examples described in this specification and the features of different embodiments or examples without contradiction.

[0061] The above is only a specific implementation of the utility model, but the protection scope of the utility model is not limited thereto. Any technician familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed by the utility model, which should be included in the protection scope of the utility model. Therefore, the protection scope of the utility model should be based on the protection scope of the claims.

Claims

1. A water pump test bench, It is characterized in that include: Main frame; A water tank, the water tank being arranged at the lower part of the main body support; A first linear module, wherein the first linear module is disposed on the main support, and a motor assembly is disposed on a driving end of the first linear module; A second linear module, the second linear module is arranged on the driving end of the first linear module, the second linear module is located above the water tank, a one-way valve is arranged on the driving end of the second linear module, the second linear module can drive the one-way valve to connect with the motor assembly to form a pump unit, the first linear module can drive the pump unit to extend below the water surface in the water tank or away from the water tank, and a return pipe is connected between the one-way valve and the water tank; A detection component, wherein the detection component is arranged on the water return pipe; And a control system, the motor component and the detection component are both connected to the control system.

2. The water pump test bench according to claim 1, It is characterized in that The first linear module includes a first linear driving member, a first mounting plate, a second mounting plate and a first guide portion. One end of the first linear driving member is connected to the main body bracket, and the other end is provided with the first mounting plate. The first mounting plate and the second mounting plate are connected through the first guide portion. The second mounting plate is located below the first mounting plate, and the motor assembly is provided on the second mounting plate.

3. The water pump test bench according to claim 2, It is characterized in that The second linear module includes a second linear driving member and a third mounting plate, the second linear driving member is arranged on the first mounting plate, the driving end of the second linear driving member is connected to the third mounting plate, the third mounting plate is slidably connected to the first guide portion, the third mounting plate is located between the first mounting plate and the second mounting plate, and the one-way valve is arranged on the third mounting plate.

4. The water pump test bench according to claim 2 or 3, It is characterized in that It also includes a positioning cylinder arranged on the first mounting plate, a positioning plate is arranged on the main body bracket, a positioning hole is arranged on the positioning plate, the cylinder rod of the positioning cylinder can extend into the positioning hole, and the telescopic direction of the positioning cylinder is perpendicular to the driving direction of the first linear drive member.

5. The water pump test bench according to claim 2 or 3, It is characterized in that It also includes a second guide portion which is arranged on the main support and in the same direction as the first linear drive member, and the first mounting plate is slidably arranged on the second guide portion.

6. The water pump test bench according to claim 2 or 3, It is characterized in that The motor assembly includes a motor, a long tube, a steel connection, a stator and a rotor. The long tube is arranged on the second mounting plate, the motor is arranged at the bottom end of the long tube, the steel connection is arranged in the long tube and one end is connected to the motor, the other end of the steel connection is arranged with the rotor, the stator is connected to the long tube, the rotor is located in the stator, and the second linear module drives the one-way valve to press against the end of the stator away from the long tube.

7. The water pump test bench according to claim 6, It is characterized in that A side hole is arranged on the side wall of the long tube at one end of the steel connection connected to the rotor, and a wrench can be inserted into the side hole and act on the outer hexagon of the steel connection.

8. The water pump test bench according to any one of claims 1 to 3, It is characterized in that It also includes an electric regulating valve arranged on the return water pipe, and the electric regulating valve is connected to the control system.

9. The water pump test bench according to claim 8, It is characterized in that The detection component includes an electronic flow meter and a pressure sensor, and the electronic flow meter and the pressure sensor are both arranged on the return pipe between the electric regulating valve and the one-way valve.

10. The water pump test bench according to claim 9, It is characterized in that The control system includes an information acquisition module, a controller and a computer. The pressure sensor, the electronic flow meter, the controller and the computer are all connected to the information acquisition module, and the controller is connected to the motor.

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