Automatic test board for submersible pump

Abstract

The invention discloses an automatic test bench for a submersible pump, and relates to the technical field of submersible pump testing, and the automatic test bench comprises a workbench, and also comprises a water pumping mechanism which is installed at the top of the workbench and carries water through a detection pump; the pressure applying mechanism is mounted at the top of the worktable, is connected with the water pumping mechanism, and is used for applying pressure to the water to different degrees to detect the flow of the water under the pressure condition; the pipeline pressure applying mechanism is mounted at the top of the workbench and used for applying pressure to the water pumping pipeline to detect the flow of water under the pressure condition; according to the invention, the influence of rolling of a pipeline by external vehicles and people on the submersible pump during water pumping operation is simulated, the performance of the submersible pump in an extremely narrow channel and a completely closed channel is detected, pressure is applied to a water inlet position in different degrees in the water pumping process, and the water flow after pressure application is obtained; and calculating the pumping performance of the pressurized submersible pump and the pressure bearing capacity of the water outlet end and the water inlet end of the submersible pump.

Description

Technical Field

[0001] The present invention relates to the technical field of submersible pump testing, in particular to an automatic testing platform for submersible pumps. Background Art

[0002] Submersible pumps are essential equipment for pumping water from deep wells. The entire unit submerges underwater to extract groundwater to the surface. This water is used for domestic water, mine rescue operations, industrial cooling, farmland irrigation, seawater lifting, ship loading, and fountain landscapes.

[0003] Submersible pumps are affected by bidirectional water pressure during use. The water pressure at the water inlet and outlet ends will cause the submersible pump to overload. Therefore, the submersible pump will be improved during the research and development stage to make it meet the requirements of overload operation. Therefore, it is necessary to conduct pressure testing on it. In addition, submersible pumps are easily affected by external factors during use. For example, a vehicle running over a water pipe causes a sudden increase in pumping pressure. The submersible pump also needs to be tested for external pressure problems to ensure that the submersible pump meets the use standards. Summary of the Invention

[0004] The present invention provides an automatic test bench for submersible pumps to solve the above-mentioned deficiencies in the prior art.

[0005] In order to achieve the above object, the present invention adopts the following technical solutions:

[0006] A submersible pump automated test bench, comprising a workbench and:

[0007] The water pumping mechanism is installed on the top of the workbench and uses a detection pump to transport water;

[0008] The pressure mechanism is installed on the top of the workbench and connected to the pumping mechanism to apply different degrees of pressure to the water to detect the water flow rate under pressure;

[0009] The pipeline pressure mechanism is installed on the top of the workbench and is used to pressurize the pumping pipeline to detect the water flow under pressure;

[0010] A driving mechanism is installed on the top of the workbench and is connected to the pressure-applying mechanism and the pipeline pressure-applying mechanism, and is used to drive the pressure-applying mechanism and the pipeline pressure-applying mechanism to operate;

[0011] The detection mechanism is installed on the pumping mechanism and is used to obtain movement data of the pressure mechanism.

[0012] Furthermore, the pumping mechanism includes water tank 1 and water tank 2 fixed on the top of the workbench, the bottom inner wall of water tank 1 is fixed with pump 1 to be tested, the water outlet end of pump 1 to be tested is fixed with an outlet pipe, the outlet pipe seal passes through water tank 1 and is connected with water tank 2, one side of water tank 2 is connected with pump 2 to be tested, the water outlet end of pump 2 to be tested is fixed with a water inlet pipe, and the other end of the water inlet pipe is connected with water tank 1.

[0013] Furthermore, the pressure mechanism includes a limit frame fixed to the inner wall of the second water tank, a piston plate is provided on the top of the limit frame, and the piston plate is sleeved inside the second water tank;

[0014] Two support plates 1 are fixed on the top of the water tank 2, and a wire pulley shaft 1 is rotatably connected between the two support plates 1; two support plates 2 are fixed on one side of the water tank 2, and a wire pulley shaft 2 is rotatably connected between the two support plates 2;

[0015] The top of the workbench is rotatably connected to a plurality of screws, the bottom end of the screw is fixed with a gear 2 on the outside, the external thread of the screw is provided with a movable plate 1, the inside of the movable plate 1 is provided with a guide rod 1, the guide rod 1 is fixed to the top of the workbench, and the tops of the plurality of movable plates 1 are fixed with pull wires, the other end of the pull wires is fixed with a counterweight block, and the pull wires are provided on the pulleys of the pulley shaft 1 and the pulley shaft 2.

[0016] Furthermore, the pressure mechanism also includes a rack located on one side of gear 2, which meshes with multiple gears 2 during movement. A movable plate 2 is fixed to one side of the rack, and a reciprocating screw 1 is sleeved inside the movable plate 2. A bevel gear 1 is fixed to one end of the reciprocating screw 1. A guide rod 2 is fixed between the support plates 3, and the movable plate 2 is sleeved on the outside of the guide rod 2. The top of the workbench is rotatably connected to a rotating shaft, and a bevel gear 2 is fixed to the outside of the bottom end of the rotating shaft. The bevel gear 2 meshes with the bevel gear 1, and a one-way gear 1 is installed on the top of the rotating shaft.

[0017] Furthermore, the pipeline pressure mechanism includes a reciprocating screw rod 2 rotatably connected to the top of the workbench, a one-way gear 2 is installed on the top of the reciprocating screw rod 2, the external threaded sleeve of the reciprocating screw rod 2 is provided with a pressure plate, the pressure plate is located at the top of the water outlet pipe, the internal sleeve of the pressure plate is provided with a guide rod 3, the guide rod 3 is fixed to the top of the workbench, and a support plate is fixed on the top of the workbench, and the support plate is located below the water outlet pipe and the pressure plate.

[0018] Furthermore, the driving mechanism includes a motor fixed on the top of the workbench, and a gear 1 is fixed to one end of the output shaft of the motor. One side of the gear 1 is engaged with the one-way gear 1, and the other side of the gear 1 is engaged with the one-way gear 2.

[0019] Furthermore, the detection mechanism includes a fixing plate fixed on the top of the second water tank, and a laser detector is fixed inside the fixing plate.

[0020] Furthermore, a controller is fixed on one side of the workbench, and the controller is electrically connected to the motor, the laser detector, the first pump to be tested, and the second pump to be tested.

[0021] Compared with the existing technology, the beneficial effects of the present invention are:

[0022] 1. The present invention applies pressure to the water inlet position to different degrees during the pumping process by installing a pressure-applying mechanism, obtains the water flow after pressure application, and calculates the pumping performance of the submersible pump after pressure and the pressure bearing capacity of the water outlet and water inlet of the submersible pump.

[0023] 2. The present invention applies pressure to the pipeline from the outside by installing a pipeline pressure mechanism, simulating the impact of external vehicles and people rolling on the pipeline on the submersible pump during pumping operation, and testing the performance of the submersible pump in extremely narrow channels and completely closed channels. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 This is a schematic diagram of the driving mechanism structure of a submersible pump automated test bench proposed by the present invention.

[0025] Figure 2 This is a schematic structural diagram of the pipeline pressure-applying mechanism of a submersible pump automated test bench proposed by the present invention.

[0026] Figure 3 This is a schematic diagram of the top structure of a submersible pump automation test bench proposed by the present invention.

[0027] Figure 4 This is a schematic cross-sectional view of the automated test bench for submersible pumps proposed in the present invention.

[0028] Figure 5 This is a structural schematic diagram of the pressure-applying mechanism of a submersible pump automated test bench proposed by the present invention.

[0029] In the figure: 1. Workbench; 2. Pumping mechanism; 21. Water tank 1; 22. Pump 1 to be tested; 23. Water outlet pipe; 24. Water tank 2; 25. Pump 2 to be tested; 26. Water inlet pipe; 3. Pressure mechanism; 31. Support plate 1; 32. Reel shaft 1; 33. Support plate 2; 34. Reel shaft 2; 35. Screw 1; 36. Gear 2; 37. Guide rod 1; 38. Moving plate 1; 39. Pull wire; 310. Counterweight; 311. Support plate 3; 312. Reciprocating screw 1; 313. Bevel gear 1; 314. Guide rod 2; 315. Moving plate 2; 316. Rack; 318. Bevel gear 2; 319. One-way gear 1; 4. Pipeline pressure mechanism; 41. Guide rod 3; 42. Reciprocating screw 1; 43. One-way gear 2; 44. Pressure plate; 45. Support plate; 5. Driving mechanism; 51. Motor; 52. Gear 1; 6. Detection mechanism; 61. Fixed plate; 62. Laser detector. DETAILED DESCRIPTION

[0030] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0031] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like to indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0032] In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the said features. In the description of the present invention, the meaning of "multiple" is two or more, unless otherwise clearly and specifically defined. In addition, the terms "installed", "connected" and "connected" should be understood in a broad sense. For example, it 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 it can be indirectly connected through an intermediate medium, or it can be a communication between the two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to the specific circumstances.

[0033] Example: Refer to Figure 1-Figure 5 : A submersible pump automated test bench, comprising a workbench 1, and further comprising:

[0034] The water pumping mechanism 2 is installed on the top of the workbench 1 and uses a detection pump to transport water;

[0035] The pumping mechanism 2 includes a water tank 1 21 and a water tank 2 24 fixed on the top of the workbench 1. A pump 1 to be tested 22 is fixed to the bottom inner wall of the water tank 1 21. An outlet pipe 23 is fixed to the water outlet end of the pump 1 to be tested 22. The outlet pipe 23 seals and passes through the water tank 1 21 and is connected to the water tank 2 24. One side of the water tank 2 24 is connected to the pump 2 to be tested 25. An inlet pipe 26 is fixed to the water outlet end of the pump 2 to be tested 25. The other end of the inlet pipe 26 is connected to the water tank 1 21.

[0036] The pressure mechanism 3 is installed on the top of the workbench 1 and is connected to the pumping mechanism 2 to apply different levels of pressure to the water to detect the water flow rate under pressure;

[0037] The pressure mechanism 3 includes a limit frame 320 fixed to the inner wall of the second water tank 24, and a piston plate 321 is provided on the top of the limit frame 320. The piston plate 321 is sleeved inside the second water tank 24;

[0038] Two support plates 1 31 are fixed on the top of the water tank 24, and a wire pulley shaft 1 32 is rotatably connected between the two support plates 1 31. Two support plates 2 33 are fixed on one side of the water tank 24, and a wire pulley shaft 2 34 is rotatably connected between the two support plates 2 33.

[0039] The top of the workbench 1 is rotatably connected to a plurality of screw rods 35, a gear 2 36 is fixed to the outside of the bottom end of the screw rod 35, a movable plate 1 38 is sleeved on the external thread of the screw rod 35, a guide rod 1 37 is sleeved on the inside of the movable plate 1 38, and the guide rod 1 37 is fixed to the top of the workbench 1, and a pull wire 39 is fixed to the top of the plurality of movable plates 1 38, a counterweight 310 is fixed to the other end of the pull wire 39, and the pull wire 39 is sleeved on the pulleys of the reel shaft 1 32 and the reel shaft 2 34;

[0040] The pressure mechanism 3 also includes a rack 316 located on one side of the second gear 36. The rack 316 meshes with multiple second gears 36 during movement. A movable plate 2 315 is fixed to one side of the rack 316. A reciprocating screw 1 312 is sleeved inside the movable plate 2 315. A bevel gear 1 313 is fixed to one end of the reciprocating screw 1 312. A guide rod 2 314 is fixed between the support plates 311. The movable plate 2 315 is sleeved on the outside of the guide rod 2 314. The top of the workbench 1 is rotatably connected to a rotating shaft 317. A bevel gear 2 318 is fixed to the outside of the bottom end of the rotating shaft 317. The bevel gear 2 318 meshes with the bevel gear 1 313. A one-way gear 1 319 is installed on the top of the rotating shaft 317.

[0041] The pressure mechanism applies different degrees of pressure to the water inlet during the pumping process, obtains the water flow after pressure application, and calculates the pumping performance of the submersible pump after pressure and the pressure bearing capacity of the water outlet of the submersible pump.

[0042] The pipeline pressure mechanism 4 is installed on the top of the workbench 1 and is used to pressurize the water pumping pipeline to detect the water flow under pressure;

[0043] The pipeline pressure mechanism 4 includes a reciprocating screw rod 2 42 rotatably connected to the top of the workbench 1 , a one-way gear 2 43 is installed on the top of the reciprocating screw rod 2 42 , and a pressure plate 44 is provided on the external thread sleeve of the reciprocating screw rod 2 42 . The pressure plate 44 is located on the top of the water outlet pipe 23 , and a guide rod 3 41 is provided inside the pressure plate 44 . The guide rod 3 41 is fixed to the top of the workbench 1 , and a support plate 45 is fixed on the top of the workbench 1 , and the support plate 45 is located below the water outlet pipe 23 and the pressure plate 44 ;

[0044] The pipeline pressure mechanism applies pressure to the pipeline from the outside, simulating the impact of external vehicles and people rolling over the pipeline on the submersible pump during pumping operation, and testing the performance of the submersible pump in extremely narrow channels and completely closed channels.

[0045] A driving mechanism 5 is installed on the top of the workbench 1 and is connected to the pressure-applying mechanism 3 and the pipeline pressure-applying mechanism 4 to drive the pressure-applying mechanism 3 and the pipeline pressure-applying mechanism 4 to operate;

[0046] The driving mechanism 5 includes a motor 51 fixed on the top of the workbench 1, and a gear 52 is fixed to one end of the output shaft of the motor 51. One side of the gear 52 is engaged with the one-way gear 1 319, and the other side of the gear 52 is engaged with the one-way gear 2 43.

[0047] The detection mechanism 6 is installed on the pumping mechanism 2 and is used to obtain movement data of the pressure applying mechanism 3 .

[0048] The detection mechanism 6 includes a fixing plate 61 fixed on the top of the water tank 2 24 , and a laser detector 62 is fixed inside the fixing plate 61 .

[0049] A controller is fixed on one side of the workbench 1 , and the controller is electrically connected to the motor 51 , the laser detector 62 , the first pump to be tested 22 , and the second pump to be tested 25 .

[0050] Working principle:

[0051] The controller starts the motor 51, the laser detector 62 and the pump 22 to be tested. The pump 22 to be tested runs to pump the water in the water tank 21 into the interior of the water tank 24 through the outlet pipe 23. After the water enters the interior of the water tank 24, it pushes the piston plate 321 on the top of the limit frame 320 upward. The laser detector 62 detects the distance and speed of the piston plate 321 moving upward and transmits the data to the controller. The controller determines whether the flow rate of the pump 22 to be tested is stable based on the data. If the piston plate 321 moves upward at a uniform speed, the flow rate is stable, ensuring the normal operation of the pump 22 to be tested. Then the motor 51 is started to drive the gear 52 to reverse. The reversal of the gear 52 satisfies the one-way gear 2. 43 drives the reciprocating screw 2 42 to rotate, and the reciprocating screw 2 42 drives the pressure plate 44 to move downward to squeeze the outlet pipe 23, simulating the effect of the pressure on the outside of the outlet pipe 23 on the pump 1 to be tested 22 during operation. After the outlet pipe 23 is squeezed, the channel through which the water flow passes is narrowed. The obstruction of the water flow will affect the pump 1 to be tested 22 that is pumping water. Then the laser detector 62 detects the moving distance of the piston plate 321, and determines the moving speed according to the moving distance, and determines the size of the water flow of the test pump of this power in the case of a narrow channel. If the pump 1 to be tested 22 is blocked for a long time, it will cause the test pump to overload. The overload operation of the test pump is detected. If the laser detection The device 62 detects that the movement of the piston plate 321 is stagnant, and the controller alarms. If there is no problem in this aspect, the pressure plate 44 moved to the tail of the wire will move up and reset, and the next test will be carried out. Then the motor 51 drives the gear 1 52 to rotate forward. The forward rotation of the gear 1 52 satisfies the direction of the rotation of the one-way gear 1 319 to drive the shaft 317 to rotate. The rotation of the shaft 317 drives the bevel gear 2 318 to rotate. The bevel gear 2 318 drives the bevel gear 1 313 engaged with it to rotate. The bevel gear 1 313 drives the reciprocating screw 1 312 to rotate, so that the moving plate 2 315 drives the rack 316 to move. The rack 316 moves and drives the first gear 2 36 and the screw 35 to rotate, so that the moving plate 2 Plate 1 38 moves up, and the counterweight 310 pulls the pull line 39 downward, and the counterweight 310 falls on the piston plate 321, exerting pressure on the piston plate 321 and the water below. The water transmits the pressure to the pump 1 22 to be tested. After moving to a certain height, the rack 316 engages with the second gear 2 36, causing the second counterweight 310 to move down and fall on the piston plate 321, and then pressurization is achieved. After the second pressure is applied, the third counterweight 310 falls on the piston plate 321, achieving gradual pressurization, and obtaining the movement data of the piston plate 321 after pressurization. After obtaining the movement data, the controller calculates the water flow rate of the pump 1 22 to be tested under different pressures, and obtains the pressure resistance performance of the pump 1 22 to be tested;

[0052] After the test is completed, the pump 1 to be tested 22 is closed, and the pump 2 to be tested 25 is opened to extract the water in the water tank 24 and send it to the water tank 1 21. The water under the pressure of the counterweight 310 will increase the pressure of the pump 1 to be tested 22. At the same time, the motor 51 is started to rotate the reciprocating screw 1 312 to move the movable plate 2 315 to the wire tail of the reciprocating screw 1 312 and then move back, so that the rack 316 is re-engaged with the multiple gears 2 36, so that the movable plate 1 38 moves downward and pulls the pull wire 39 to move the counterweight 310 upward and reset. The multiple counterweights 310 move upward in sequence. During the test process, the laser detector 62 obtains the test data and transmits it to the controller for judgment to detect the impact of different pressures on the pump 2 to be tested 25;

[0053] After the water in water tank 2 24 is pumped into water tank 1 21 , it waits for further testing.

[0054] The above description is only a preferred specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any technician familiar with the technical field, within the technical scope disclosed by the present invention, who makes equivalent replacements or changes based on the technical solution and inventive concept of the present invention, should be covered by the scope of protection of the present invention.

Claims

1. A submersible pump automated test bench, comprising a workbench (1), characterized in that Also includes: A water pumping mechanism (2) is installed on the top of the workbench (1) and uses a detection pump to transport water; A pressure mechanism (3) is installed on the top of the workbench (1) and is connected to the water pumping mechanism (2) to apply pressure to the water to different degrees to detect the flow rate of the water under pressure; A pipeline pressure mechanism (4), which is installed on the top of the workbench (1) and is used to apply pressure to the water pumping pipeline to detect the flow rate of water under pressure; A driving mechanism (5) is installed on the top of the workbench (1) and is connected to the pressure-applying mechanism (3) and the pipeline pressure-applying mechanism (4), and is used to drive the pressure-applying mechanism (3) and the pipeline pressure-applying mechanism (4) to operate; The detection mechanism (6) is installed on the water pumping mechanism (2) and is used to obtain movement data of the pressure applying mechanism (3).

2. The submersible pump automated test bench according to claim 1, characterized in that: The pumping mechanism (2) comprises a water tank 1 (21) and a water tank 2 (24) fixed on the top of the workbench (1); a pump 1 to be tested (22) is fixed to the inner wall of the bottom of the water tank 1 (21); a water outlet pipe (23) is fixed to the water outlet end of the pump 1 to be tested (22); the water outlet pipe (23) is sealed and passes through the water tank 1 (21) and is connected to the water tank 2 (24); one side of the water tank 2 (24) is connected to the pump 2 to be tested (25); a water inlet pipe (26) is fixed to the water outlet end of the pump 2 to be tested (25); the other end of the water inlet pipe (26) is connected to the water tank 1 (21).

3. The submersible pump automated test bench according to claim 2, characterized in that: The pressure mechanism (3) includes a limiting frame (320) fixed to the inner wall of the second water tank (24), a piston plate (321) is provided on the top of the limiting frame (320), and the piston plate (321) is sleeved inside the second water tank (24); Two support plates (31) are fixed on the top of the water tank (24), and a wire wheel shaft (32) is rotatably connected between the two support plates (31). Two support plates (33) are fixed on one side of the water tank (24), and a wire wheel shaft (34) is rotatably connected between the two support plates (33). The top of the workbench (1) is rotatably connected to a plurality of screw rods (35), the bottom end of each screw rod (35) is externally fixed with a gear 2 (36), the external thread of each screw rod (35) is sleeved with a movable plate 1 (38), the interior of each movable plate 1 (38) is sleeved with a guide rod 1 (37), the guide rod 1 (37) is fixed to the top of the workbench (1), the tops of the plurality of movable plates 1 (38) are all fixed with a pull wire (39), the other end of each pull wire (39) is fixed with a counterweight (310), and the pull wire (39) is sleeved on the pulleys of the pulley shaft 1 (32) and the pulley shaft 2 (34).

4. The submersible pump automated test bench according to claim 3, characterized in that: The pressure mechanism (3) further comprises a rack (316) located on one side of the gear 2 (36), wherein the rack (316) is respectively meshed with a plurality of gears 2 (36) during movement, a movable plate 2 (315) is fixed to one side of the rack (316), a reciprocating screw 1 (312) is sleeved inside the movable plate 2 (315), a bevel gear 1 (313) is fixed to one end of the reciprocating screw 1 (312), a guide rod 2 (314) is fixed between the support plates 3 (311), the movable plate 2 (315) is sleeved on the outside of the guide rod 2 (314), the top of the workbench (1) is rotatably connected to a rotating shaft (317), a bevel gear 2 (318) is fixed to the outside of the bottom end of the rotating shaft (317), the bevel gear 2 (318) is meshed with the bevel gear 1 (313), and a one-way gear 1 (319) is installed on the top of the rotating shaft (317).

5. The submersible pump automated test bench according to claim 4, characterized in that: The pipeline pressure mechanism (4) includes a reciprocating screw rod 2 (42) rotatably connected to the top of the workbench (1), a one-way gear 2 (43) is installed on the top of the reciprocating screw rod 2 (42), the external thread of the reciprocating screw rod 2 (42) is provided with a pressure plate (44), the pressure plate (44) is located on the top of the water outlet pipe (23), the interior of the pressure plate (44) is provided with a guide rod 3 (41), the guide rod 3 (41) is fixed to the top of the workbench (1), and a support plate (45) is fixed to the top of the workbench (1), and the support plate (45) is located below the water outlet pipe (23) and the pressure plate (44).

6. The submersible pump automated test bench according to claim 5, characterized in that: The driving mechanism (5) includes a motor (51) fixed on the top of the workbench (1), and a gear 1 (52) is fixed to one end of the output shaft of the motor (51), one side of the gear 1 (52) is meshed with a one-way gear 1 (319), and the other side of the gear 1 (52) is meshed with a one-way gear 2 (43).

7. The submersible pump automated test bench according to claim 6, characterized in that: The detection mechanism (6) comprises a fixing plate (61) fixed on the top of the second water tank (24), and a laser detector (62) is fixed inside the fixing plate (61).

8. The submersible pump automated test bench according to claim 9, characterized in that: A controller is fixed on one side of the workbench (1), and the controller is electrically connected to the motor (51), the laser detector (62), the first pump to be tested (22), and the second pump to be tested (25).

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