Clamping tool for water pump testing and testing system

Abstract

The utility model provides a clamping tool for water pump testing and a water pump testing system, and the clamping tool for water pump testing comprises a limiting end which comprises a lifting platform and a water pump supporting platform, and a sliding groove is formed in the top of the lifting platform; a sliding block matched with the sliding groove is arranged at the bottom of the water pump supporting table. The positioning end comprises a positioner, the positioner is rotationally connected with two positioning rods, the tail ends of the positioning rods are sleeved with lifting water pipes, and pressing blocks sleeved with water inlets / outlets of the water pumps are fixed to the sides, close to the water pumps, of the lifting water pipes. According to the technical scheme, the to-be-tested water pump is placed on the water pump supporting table, the water inlet / outlet of the to-be-tested water pump corresponds to the lifting water pipe at the tail end of the positioning rod, and in the lifting process of the lifting water pipe, the rubber pressing block at the tail end of the lifting water pipe tightly presses the water inlet / outlet of the to-be-tested water pump; and after the test is completed, the lifting water pipe is separated from the to-be-tested water pump by lifting of the positioner, so that the to-be-tested water pump is quickly replaced.

Description

Technical Field

[0001] The utility model relates to the technical field of water pump testing, in particular to a clamping tooling and a testing system for water pump testing. Background Art

[0002] After the existing water pumps (such as canned motor pumps) are manufactured, performance tests are required to check whether their performance meets the standards; thus, in the process of replacing water pumps on the testing tooling, due to the large number of water pumps and the replacement being mostly carried out manually, the replacement efficiency is generally relatively low.

[0003] The quick connectors currently used in the water pump testing process also have certain deficiencies. The commonly used quick connectors are usually provided with manual sealing structures, and the positions where the water pumps are placed are also different, so that manual operation becomes a time-consuming but inevitable replacement method. Therefore, a clamping tooling for water pumps that can greatly improve the replacement efficiency is needed. Summary of the Utility Model

[0004] The utility model provides a clamping tooling and a testing system for water pump testing, aiming to improve the replacement efficiency of the water pump to be tested.

[0005] In a first aspect, an embodiment of the utility model provides a clamping tooling for water pump testing, including:

[0006] A limiting end, including a lifting platform and a water pump support platform. A chute is provided at the top of the lifting platform; a slider matching the chute is provided at the bottom of the water pump support platform;

[0007] A positioning end, including a positioner. The positioner is rotatably connected with two positioning rods. A lifting water pipe is sleeved at the end of the positioning rod. A pressing block for sleeving the water inlet / outlet of the water pump is fixed on the side of the lifting water pipe close to the water pump.

[0008] Optionally, the pressing block includes a threaded port pressing block and / or a flange surface pressing block.

[0009] Optionally, a through hole for connecting a differential pressure gauge is provided on the side of the lifting water pipe.

[0010] Optionally, the lifting platform includes a hand-operated screw jack.

[0011] Optionally, the water pump support platform is provided with a depression corresponding to the water pump to be tested, and the water pump to be tested is electrically connected to an external control unit.

[0012] Optionally, the positioner is a rotary positioning disk, the rotary positioning disk is rotatably connected with the positioning rod, and the positioning rod is connected to an external control unit.

[0013] In a second aspect, an embodiment of the present utility model provides a water pump testing system. By applying the clamping tooling for water pump testing provided in the first aspect, a hose is connected to the side of the lifting water pipe away from the water pump, and the hose is connected to the inlet / outlet end of the water storage tank.

[0014] Optionally, a flow meter is provided at the inlet end of the water storage tank.

[0015] For the clamping tooling for water pump testing and the water pump testing system provided by the embodiment of the present utility model, the clamping tooling for water pump testing places the water pump to be tested on the water pump support platform, so that the inlet / outlet of the water pump to be tested corresponds to the lifting water pipe at the end of the positioning rod. During the lifting process of the lifting water pipe, the rubber pressing block at its end presses tightly against the inlet / outlet of the water pump to be tested, and after the test is completed, the positioning device is used to lift the lifting water pipe to separate it from the water pump to be tested, realizing the rapid replacement of the water pump to be tested. Description of the Drawings

[0016] Figure 1 It is the structural schematic diagram of a clamping tooling for water pump testing provided by the embodiment of the present utility model;

[0017] Figure 2 It is the schematic diagram of the rotary positioning disk in the clamping tooling for water pump testing provided by the embodiment of the present utility model. Detailed Embodiments

[0018] The present utility model will be further described in detail below with reference to the drawings and embodiments. It can be understood that the specific embodiments described herein are only used to explain the present utility model, rather than limiting the present utility model. In addition, it should be noted that for the sake of description, only parts related to the present utility model are shown in the drawings, rather than all the structures.

[0019] In the existing water pump testing process, it is usually necessary to connect the water pump to be tested with the testing equipment and further tighten it through a manual sealing step, which will increase the installation time of the water pump and affect the testing efficiency. Therefore, a clamping tooling for water pump is needed to improve the replacement efficiency of the water pump.

[0020] Embodiment 1

[0021] In view of the above deficiencies, the present utility model proposes a clamping tooling for water pump testing, as Figure 1 shown, including:

[0022] The limiting end includes a lifting platform 8 and a water pump support platform 7. A chute is provided at the top of the lifting platform 8; a slider matching the chute is provided at the bottom of the water pump support platform 7. Before use, the water pump needs to be placed on the support platform and the corresponding position with the lifting water pipe 6 adjusted. Then the slider is fixed, and when testing water pumps of the same type subsequently, the positioning link can be simplified. It should be added here that the lifting platform 8 can adopt a hand-cranked screw lift, or a threaded lifting rod and a driving motor structure, with the aim of finely adjusting the height of the lifting platform 8, so as to finely adjust the corresponding position between the water inlet and outlet of the water pump and the lifting water pipe 6.

[0023] Moreover, the water pump support platform 7 is provided with a depression corresponding to the water pump 11 to be tested, and the water pump 11 to be tested is electrically connected to an external control unit 9. The external control unit 9 includes a controller 91 and a variable-frequency power supply 92. The controller 91 is used to adjust the working mode of the water pump 11 to be tested to meet the test requirements, and the variable-frequency power supply 92 is used to supply power to the water pump 11 to be tested and the driving motor.

[0024] The positioning end includes a positioner 3. Two positioning rods 5 are rotatably connected to the positioner 3. The ends of the positioning rods 5 are sleeved with a lifting water pipe 6. A pressing block for sleeving the water inlet / outlet of the water pump is fixed on the lifting water pipe 6 near the water pump side, preferably a rubber pressing block. Specifically, these two positioning rods 5 are rotatably connected to the support rod of the positioner 3. One of the positioning rods 5 is connected to the lifting water pipe 6 at the water inlet of the water pump 11 to be tested, and the connection method includes but is not limited to sleeving; the other positioning rod 5 is connected to the lifting water pipe 6 at the water outlet of the water pump 11 to be tested; the rubber pressing blocks respectively fixed on the above two lifting water pipes 6 can adopt a threaded port and / or a flange surface structure, which mainly depends on the type of the water pump 11 to be tested.

[0025] As Figure 2 shown, in a preferred embodiment, the positioner 3 is a rotary positioning disc 31. The rotary positioning disc 31 is rotatably connected to the positioning rod 5, and the positioning rod 5 is connected to the external control unit 9. The external control unit 9 can electrically drive the positioning rod 5 through a motor, or pneumatically drive the positioning rod 5 through a cylinder.

[0026] A clamping tool for water pump testing provided by an embodiment of the present utility model places the water pump to be tested on the water pump support platform, makes the water inlet / outlet of the water pump to be tested correspond to the lifting water pipe at the end of the positioning rod. During the lifting process of the lifting water pipe, the rubber pressing block at its end presses the water inlet / outlet of the water pump to be tested, and after the test is completed, the lifting water pipe is lifted by the positioner to be separated from the water pump to be tested, realizing the rapid replacement of the water pump to be tested.

[0027] Embodiment Two

[0028] Based on Embodiment 1, the embodiment of the present utility model further illustrates the working process of the clamping tooling for pump testing as follows:

[0029] First, place the pump 11 to be tested on the pump support platform 7, and fix the pump support platform 7 by using the structure of the slider and the chute. Adjust the fine-tuning lifting platform 8 to make the inlet / outlet of the pump 11 to be tested and the lifting water pipe 6 in a position where they can be comfortably connected; and carry out the subsequent testing work on the pumps 11 of the same type at this position until it is necessary to test other types of pumps, then replace the pump support platform 7 by adjusting the height of the lifting platform 8, and repeat the above steps.

[0030] After that, move the two positioning rods 5 connected to the positioner 3 to make the rubber pressing block at the end of the lifting water pipe 6 closely connected to the inlet / outlet of the pump 11 to be tested. At this time, it is necessary to confirm whether the threaded port or flange surface adopted by the rubber pressing block matches the pump 11 to be tested; and confirm whether the lifting water pipe 6 is connected to the inlet end and the outlet end of the water storage tank 10 through a hose, and confirm whether the connection is well sealed; a pressure relief valve 1 is provided at the top of the water storage tank 10 to prevent excessive pressure inside the tank.

[0031] After that, start the pump through the external control unit 9, set a flow meter 2 at the inlet end of the water storage tank 10 for flow monitoring, and measure the pressure difference on both sides of the pump 11 to be tested by a differential pressure gauge 4 connected through a through hole on the side of the lifting water pipe 6;

[0032] After the test is completed, control the positioner 3 to make the positioning rod 5 drive the lifting water pipe 6 away from the pump to be tested. The control method includes but is not limited to using a pneumatic method.

[0033] Embodiment 3

[0034] The embodiment of the present utility model provides a pump testing system, which includes the clamping tooling for pump testing provided in the foregoing embodiment. In addition, a hose is connected to the side of the lifting water pipe 6 away from the pump, and the hose is connected to the outlet / inlet end of the water storage tank 10, and the connection with the water storage tank 10 needs to be tightened to prevent liquid (water) leakage. A flow meter 2 is provided at the inlet end of the water storage tank 10, and a differential pressure gauge 4 connected through a through hole on the side of the lifting water pipe 6 measures the pressure difference on both sides of the pump 11 to be tested.

[0035] This pump testing system has the same technical effects as the design structure with the clamping tooling for pump testing, and will not be elaborated here.

[0036] In the present utility model, some orientation words are defined. Without contrary explanations, the orientation words such as "up", "down", "left", "right", "inside", and "outside" are used for convenience of understanding, and thus do not constitute a limitation to the protection scope of the present utility model.

[0037] In the present utility model, unless otherwise clearly defined and limited, the first feature being "above" or "below" the second feature may include the direct contact between the first and second features, or may include the situation where the first and second features are not in direct contact but in contact through additional features therebetween. Moreover, the first feature being "above", "over" and "on top of" the second feature includes that the first feature is directly above and obliquely above the second feature, or merely indicates that the horizontal height of the first feature is higher than that of the second feature. The first feature being "under", "beneath" and "underneath" the second feature includes that the first feature is directly below and obliquely below the second feature, or merely indicates that the horizontal height of the first feature is lower than that of the second feature.

[0038] In the description of the present utility model, unless otherwise clearly defined and limited, the terms "connected", "connected to" and "fixed" shall be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or integrated; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and may be the internal communication between two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations.

Claims

1. A clamping tool for testing a water pump, characterized in that: include: The limiting end includes a lifting platform and a water pump support platform, wherein a slide groove is provided on the top of the lifting platform; and a sliding block matching the slide groove is provided on the bottom of the water pump support platform; The positioning end includes a positioner, which is rotatably connected to two positioning rods. The ends of the positioning rods are sleeved with lifting pipes. The lifting pipes are fixed with a pressure block sleeved with the water inlet / outlet of the water pump on the side near the water pump.

2. The water pump testing fixture according to claim 1, characterized in that: The pressing block includes a threaded pressing block and / or a flange surface pressing block.

3. The water pump testing fixture according to claim 1, characterized in that: A through hole for connecting a differential pressure gauge is provided on the side of the lifting water pipe.

4. The water pump testing fixture according to claim 1, characterized in that: The lifting platform comprises a hand-cranked screw lift.

5. The water pump testing fixture according to claim 1, characterized in that: The water pump support platform is provided with a recess corresponding to the water pump to be tested, and the water pump to be tested is electrically connected to an external control unit.

6. The water pump testing fixture according to claim 5, characterized in that: The positioner is a rotating positioning disk, the rotating positioning disk is rotatably connected to the positioning rod, and the positioning rod is connected to an external control unit.

7. A water pump testing system, comprising the water pump testing fixture according to any one of claims 1 to 6, characterized in that: The lifting water pipe is connected with a hose on the side away from the water pump, and the hose is connected to the water outlet / inlet end of the water storage tank.

8. The water pump testing system according to claim 7, characterized in that: A flow meter is provided at the water inlet end of the water storage tank.

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