Submersible pump impeller testing equipment

Abstract

The invention relates to the technical field of impeller detection, in particular to submersible pump impeller testing equipment which comprises a testing box, moving blocks are slidably installed on the two sides of the middle of the testing box through electric sliding blocks, and correspondingly-arranged electric push rods are rotatably installed on the sides, close to each other, of the moving blocks on the two sides through motors. And conversion plates are fixedly installed at the ends, away from the moving blocks, of the electric push rods, a plurality of sets of end sleeves which are arranged in the annular direction are jointly installed between the conversion plates on the two sides, and the part between each set of end sleeves is used for placing the impeller when the impeller is tested. The impeller is made to simulate the rotation conditions under different water pressures in the actual use process, the knocking rod drives the contact blocks to knock the two side faces of the impeller when sliding outwards, so that the knocking force test on the outer portion of the impeller is achieved, the impeller is driven to rotate when the end sleeve rotates, and therefore the impeller is made to conduct strength test in a rotating mode.

Description

Technical Field

[0001] The invention relates to the technical field of impeller detection, in particular to a submersible pump impeller testing device. Background Art

[0002] Submersible pump is an important equipment for deep well water extraction. When in use, the whole unit submerges into the water and is mostly used to extract groundwater to the surface for domestic water and mine rescue. Submersible pumps can be divided into four types according to the sealing form of the motor: dry type, semi-dry type, oil-filled type and wet type. Among them, the impeller is one of the most important structures in the submersible pump.

[0003] The prior art discloses a Chinese patent with application number CN202322592953.9, which is a tooling fixture for impeller testing. It discloses a base plate, a first motor, a turntable, a connecting piece, an impeller workpiece and a clamping nut. The turntable can be conveniently fixed to the base plate, and impellers of various sizes can be connected and rotated for testing, thereby reducing the wear on the impeller. By setting a fixing frame, an adjusting piece, an electric push rod and a microwave sensor, it can be further adapted to the testing of impellers with different outer diameters, thereby improving practicality.

[0004] The above device can meet the needs of fixing impellers with different outer diameters during testing, but the impeller in the submersible pump with large flow rate is a double-suction stainless steel structure. The above device cannot perform uniform and comprehensive strength testing on the outside of the impeller, and cannot perform wear detection on the edge of the impeller. In addition, the existing detection device cannot simulate the impact of different water pressures and the impact of mud and sand on the impeller test data during actual use. Summary of the invention

[0005] The object of the present invention is to provide a submersible pump impeller testing device to solve the problems raised in the above background technology.

[0006] The purpose of the present invention can be achieved through the following technical solutions:

[0007] A submersible pump impeller test device comprises a test box, wherein moving blocks are slidably installed on both sides of the middle of the test box through electric sliders, and corresponding electric push rods are installed on the sides of the moving blocks close to each other through motor rotation, and a conversion plate is fixedly installed on the end of the electric push rod away from the moving block, and multiple groups of annularly arranged end sleeves are installed between the conversion plates on both sides, and each group of end sleeves is used for placing the impeller during testing, a support frame is arranged on one side of the inner cavity of the test box, and a cross plate is fixedly installed on the lower end surface of the support frame, and multiple equal intervals are arranged on the side of the cross plate close to the impeller. An external plate, a column frame is fixedly installed on the side of the external plate away from the cross plate, a middle groove connected with the inner cavity of the column frame is opened in the middle of the cross plate, a pushing plate is slidably installed in the middle groove, an active wedge block is fixedly installed at one end of the pushing plate, knocking rods are slidably installed on both sides of the column frame, corresponding driven wedge blocks are installed on the close sides of the knocking rods on both sides, a contact block is fixedly installed on the end of the knocking rod away from the driven wedge block, a pressure sensor is provided in the middle of the contact block, a grinding roller corresponding to the column frame is provided on the front side of the support frame, and a compression cylinder is provided on the rear side of the grinding roller.

[0008] Furthermore, a cylinder is installed between the support frame and the test box, a spring is provided on the outside of the knocking rod, a rectangular groove is provided on the lower end surface of the external plate, an upright block fixedly connected to the push plate is provided in the rectangular groove, a fixed block fixedly connected to the external plate is provided on one side of the upright block, a spring is connected between the fixed block and the upright block, an adjusting groove is provided on the upper end surface of the external plate, and an adjusting rod fixedly connected to the push plate is provided in the adjusting groove.

[0009] Furthermore, a driving plate is placed above the external plate, and a plurality of traction grooves are provided on the driving plate. The traction grooves are located outside the corresponding regulating rods and are sleeved thereon. A motor is fixedly installed in the middle of the horizontal plate, and an extrusion wheel is fixedly installed at the output end of the motor. A contact plate fixedly connected to the driving plate is provided on one side of the extrusion wheel.

[0010] Furthermore, a storage box is fixedly installed on the front side of the support frame, side panels are fixedly installed on both sides of the storage box, a middle rod is installed between the two side panels for joint rotation via an electric slider, a plurality of groups of rectangular bars are fixedly installed on the middle rod, the inner wall of the grinding roller is sleeved on the outside of the middle rod and the rectangular bars, and springs sleeved on the middle rod are provided on both sides of the grinding roller.

[0011] Furthermore, a bracket is fixedly installed in the middle of the upper end surface of the storage box, a cross bar is fixedly installed in the middle of the bracket, a flip plate is rotatably installed on the outside of the cross bar, a spring is fixedly installed on one side of the bracket and the spring is connected to the flip plate at one end away from the bracket, a rotating rod is rotatably installed on the other side of the bracket, a cam is fixedly installed in the middle of the rotating rod, a middle plate fixedly connected to the bracket is provided above the cam, a pushing rod is slidably installed in the middle of the middle plate, and the lower part of the pushing rod is arc-shaped and is always in contact with the cam.

[0012] Furthermore, pulleys are fixedly installed on one side of the rotating rod and one side of the middle rod, and the pulleys are driven by belts. A conveying pipe is provided between the compression cylinder and the storage box, and a discharge pipe facing the impeller is provided at the lower part of the compression cylinder. A piston rod is slidably installed inside the compression cylinder, and a synchronization plate is fixedly installed between the multiple piston rods. A top component sliding in the flip plate is fixedly installed on the upper end surface of the synchronization plate.

[0013] Furthermore, a control plate is rotatably installed on one side of the conversion plate through an electric slider, a slide groove corresponding to the end sleeve is opened on the conversion plate, a slide is slidably installed in the slide groove, the slide is connected to the corresponding end sleeve through a motor rotation, and a clamp for fixing the impeller is provided on the inner wall of the end sleeve.

[0014] Furthermore, an arc groove is circumferentially provided on the regulating plate, a built-in rod is slidably installed in the arc groove, a push-pull plate is hinged between the built-in rod and the corresponding sliding member, and a bidirectional telescopic rod is installed between the conversion plates on both sides.

[0015] Furthermore, two symmetrically arranged hydraulic rods are provided on the side of the inner cavity of the test box away from the support frame, a rectangular plate is fixedly installed between the two hydraulic rods, multiple groups of sliding rods are slidably installed on the rectangular plate, a cleaning plate corresponding to the impeller is fixedly installed at one end of the sliding rod, and a brush is provided on the inner wall of the cleaning plate.

[0016] Furthermore, displacement grooves are provided on both sides of the upper end surface of the test box, and a screw is provided in the displacement groove. A side plate that slides with the displacement groove is rotatably installed outside the screw, and a lifting frame is slidably installed on the side plate through an electric slider. A wiping plate is fixedly installed between the lifting frames, and the lower part of the wiping plate is provided with a sponge.

[0017] Beneficial effects of the present invention:

[0018] 1. The present invention can fix multiple groups of impellers by bringing multiple groups of end sleeves close to each other. At the same time, the motor is turned on to drive the electric push rods on both sides to rotate, and the multiple groups of impellers between the conversion plates on both sides can be switched. At the same time, after the multiple impellers are tested, they are quickly disassembled. The electric slider is turned on to drive the two conversion plates to slide in the test box, thereby meeting the requirements of the impeller being tested under different water pressure environments in the test box, so that the impeller simulates the rotation of the impeller under different water pressures during actual use.

[0019] 2. The present invention drives the active wedge block to squeeze the driven wedge blocks on both sides through the sliding of the push plate, and the driven wedge blocks on both sides push the two knocking rods respectively. When the knocking rods slide outward, they drive the contact blocks to knock on the two sides of the impeller, thereby realizing the knocking force test on the outside of the impeller. By setting the pressure sensor in the middle of the contact block, the intensity of the knocking on the impeller can also be monitored. At the same time, the motor is turned on to drive the end sleeves of each group to rotate, and the rotation of the end sleeves drives the impeller to rotate, so that the impeller is rotated to perform strength test, and finally the circumferential knocking test of the impeller is realized. Moreover, by driving the impeller to slide toward the knocking rods by each group of end sleeves, it is also possible to realize the circumferential knocking of the impeller and the radial knocking test of the impeller at the same time, so that it meets the comprehensiveness and uniformity of the knocking force test on both sides of the impeller. By setting the grinding roller and cooperating with the rotation of the impeller, the grinding roller can also perform the wear resistance test on the outer edge of the impeller when the strength knocking test is performed on the outside of the impeller.

[0020] 3. In the present invention, when the push plate drives the active wedge block to cancel the squeezing of the driven wedge block, the two knocking rods approach each other under the action of the spring, and as the push plate squeezes the driven wedge block through the active wedge block again, the two contact blocks knock on the impeller again. The above operation is repeated to perform a reciprocating knocking operation on the impeller, thereby making the data more accurate when detecting the strength of the impeller.

[0021] 4. The present invention intermittently pushes the flip plate by sliding the push rod up and down. When the flip plate is pushed, it rotates along the outside of the cross bar. When the flip plate rotates, the top component drives the synchronous plate to synchronously press down multiple piston rods. The piston rods press down to inject the mud in the compression cylinder into the side groove on the impeller, thereby simulating the mud infusion of the impeller into the impeller during actual work.

[0022] 5. The present invention opens and pushes the hydraulic rod forward to make the cleaning plate contact with the tested impeller group, and then starts the motor to make the end sleeve of the corresponding group drive the impeller group to rotate in a circular direction, so that the brush on the cleaning plate can scrub and clean the mud and sand in the groove at the edge of the impeller, and cooperate with the rotation of the impeller to make the water in the test box flush the groove, and under the setting of the spring, the brush can also scrub the impeller in an impact manner. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings required for use in the embodiments or the prior art description are briefly introduced below. Obviously, for those skilled in the art, other drawings can be obtained based on these drawings without creative work.

[0024] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0025] Figure 2 It is a schematic diagram of the overall top view structure of the present invention;

[0026] Figure 3 It is a schematic diagram of the structure between the hydraulic rod and the cleaning plate of the present invention;

[0027] Figure 4 It is a schematic diagram of the inner cavity structure of the test box of the present invention;

[0028] Figure 5 It is a schematic diagram of the structure between multiple groups of impellers and conversion plates of the present invention;

[0029] Figure 6 It is a schematic diagram of the structure between two conversion plates of the present invention;

[0030] Figure 7 It is a schematic diagram of the upper structure of the support frame of the present invention;

[0031] Figure 8 It is a schematic diagram of the upper structure of the horizontal plate of the present invention;

[0032] Fig. 9 It is a schematic diagram of the lower structure of the horizontal plate of the present invention;

[0033] Fig.10 It is a schematic diagram of the top-sectional structure between the external plate and the column frame of the present invention;

[0034] Fig.11 It is a schematic diagram of the external structure of the storage box of the present invention;

[0035] Fig.12 The present invention Fig.11 Schematic diagram of the enlarged structure of part A.

[0036] The reference numerals in the figures are as follows:

[0037] 1. Test box; 20. Moving block; 21. Electric push rod; 22. Conversion plate; 23. Slide; 24. End sleeve; 25. Control plate; 26. Arc groove; 27. Built-in rod; 28. Push-pull plate; 30. Support frame; 31. Horizontal plate; 32. External plate; 321. Column frame; 322. Middle groove; 323. Push plate; 324. Active wedge block; 325. Knocking rod; 326. Driven wedge block; 327. Contact block; 33. Rectangular groove; 330. Vertical block; 331. Fixed block; 34. Control groove; 341. Control rod; 35. Drive plate; 351, traction groove; 36, motor; 361, extrusion wheel; 362, contact plate; 41, storage box; 42, side plate; 43, middle rod; 44, rectangular bar; 45, grinding roller; 46, bracket; 461, middle plate; 462, push rod; 47, flip plate; 48, rotating rod; 481, cam; 49, compression cylinder; 491, piston rod; 492, synchronous plate; 493, top component; 51, hydraulic rod; 52, rectangular plate; 53, sliding rod; 54, cleaning plate; 55, displacement groove; 56, side plate; 57, lifting frame; 58, wiping plate. DETAILED DESCRIPTION

[0038] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0039] A submersible pump impeller testing device is used to detect devices used in water conservancy projects, specifically to perform strength tests on impellers in submersible pumps, and to accurately record the pressure of the test through a pressure sensor, while simulating different water depths to test the resistance and wear resistance of the impeller.

[0040] like Figure 1-Figure 12 As shown, a submersible pump impeller testing device comprises a test box 1, wherein moving blocks 20 are slidably installed on both sides of the middle of the test box 1 through electric sliders, and corresponding electric push rods 21 are installed on the sides of the moving blocks 20 that are close to each other through motor rotation, and a conversion plate 22 is fixedly installed on the end of the electric push rod 21 away from the moving block 20, and multiple groups of circumferentially arranged end sleeves 24 are installed between the conversion plates 22 on both sides, and the space between each group of end sleeves 24 is used for placing the impeller during testing, and a support frame 30 is arranged on one side of the inner cavity of the test box 1.

[0041] By bringing the multiple groups of end sleeves 24 close to each other, the multiple groups of impellers can be fixed. At the same time, the motor is turned on to drive the electric push rods 21 on both sides to rotate, and the multiple groups of impellers between the conversion plates 22 on both sides can be switched. At the same time, after the multiple impellers are tested, they can be quickly disassembled. The electric slider is turned on to drive the two conversion plates 22 to slide in the test box 1, thereby meeting the requirements of the impeller being tested under different water pressure environments in the test box 1, so that the impeller can simulate the rotation of the impeller under different water pressures during actual use.

[0042] A transverse plate 31 is fixedly installed on the lower end surface of the support frame 30, and a plurality of external plates 32 are evenly spaced on the side of the transverse plate 31 close to the impeller, and a column frame 321 is fixedly installed on the side of the external plate 32 away from the transverse plate 31. A middle groove 322 connected to the inner cavity of the column frame 321 is opened in the middle of the transverse plate 31, and a push plate 323 is slidably installed in the middle groove 322, and an active wedge block 324 is fixedly installed on one end of the push plate 323, and knocking rods 325 are slidably installed on both sides of the column frame 321, and corresponding driven wedge blocks 326 are installed on the close sides of the knocking rods 325 on both sides, and a contact block 327 is fixedly installed on the end of the knocking rod 325 away from the driven wedge block 326, and a pressure sensor is provided in the middle of the contact block 327, and a grinding roller 45 corresponding to the column frame 321 is provided on the front side of the support frame 30, and a compression cylinder 49 is provided on the rear side of the grinding roller 45.

[0043] A plurality of external plates 32 are provided on the transverse plate 31, and the sliding of the push plate 323 drives the active wedge block 324 to squeeze the driven wedge blocks 326 on both sides, and the driven wedge blocks 326 on both sides push the two knocking rods 325 respectively, and the knocking rods 325 drive the contact blocks 327 to knock on the two sides of the impeller when sliding outward, thereby realizing the knocking force test on the outside of the impeller, and the pressure sensor is set in the middle of the contact block 327, The intensity of the knocking on the impeller can also be monitored, and at the same time, the motor is turned on to drive the end sleeve 24 of each group to rotate, and the rotation of the end sleeve 24 drives the impeller to rotate, so that the strength test of the impeller is carried out in a rotating manner, and finally the circumferential knocking test of the impeller is realized, and each group The end sleeve 24 drives the impeller to slide toward the knocking rod 325, and can also realize the radial knocking test on the impeller while knocking circumferentially, so that it can meet the comprehensiveness and uniformity of the knocking force test on both sides of the impeller. Compared with other existing technologies, the present invention drives the impeller to rotate through the end sleeve 24, and each group of end sleeves 24 slides in the slide groove, so that the impeller can be knocked circumferentially and radially at the same time, thereby making the surface of the impeller evenly and comprehensively tested for strength, and through the setting of the grinding roller 45, in conjunction with the rotation of the impeller, when the strength knocking test is performed on the outside of the impeller, the grinding roller 45 can perform a wear resistance test on the outer edge of the impeller, further enhancing the diversity of impeller testing.

[0044] A cylinder is installed between the support frame 30 and the test box 1, a spring is sleeved on the outside of the knocking rod 325, a rectangular groove 33 is opened on the lower end surface of the external plate 32, a vertical block 330 fixedly connected to the push plate 323 is arranged in the rectangular groove 33, a fixed block 331 fixedly connected to the external plate 32 is arranged on one side of the vertical block 330, a spring is connected between the fixed block 331 and the vertical block 330, a regulating groove 34 is opened on the upper end surface of the external plate 32, a regulating rod 341 fixedly connected to the push plate 323 is arranged in the regulating groove 34.

[0045] A spring is provided on the outside of the knocking rod 325. When the push plate 323 drives the active wedge block 324 to cancel the squeezing of the driven wedge block 326, the two knocking rods 325 approach each other under the action of the spring. As the push plate 323 squeezes the driven wedge block 326 through the active wedge block 324 again, the two contact blocks 327 knock on the impeller again. The above operation can be repeated to perform a reciprocating knocking operation on the impeller, thereby making the data more accurate when detecting the strength of the impeller.

[0046] A driving plate 35 is placed above the outer plate 32. A plurality of traction grooves 351 are provided on the driving plate 35. The traction grooves 351 are located outside the corresponding regulating rods 341 and are sleeved thereon. A motor 36 is fixedly installed in the middle of the horizontal plate 31. An extrusion wheel 361 is fixedly installed at the output end of the motor 36. A contact plate 362 fixedly connected to the driving plate 35 is provided on one side of the extrusion wheel 361.

[0047] By turning on the motor 36, the motor 36 intermittently pushes the contact plate 362 through the extrusion wheel 361. When the contact plate 362 is pushed, the regulating rod 341 is squeezed through the traction groove 351 on the driving plate 35. After the regulating rod 341 is squeezed, the sliding of the push plate 323 is controlled, and finally the contact block 327 is controlled to perform a strength knock test on the outside of the impeller.

[0048] A storage box 41 is fixedly installed on the front side of the support frame 30, and side panels 42 are fixedly installed on both sides of the storage box 41. A middle rod 43 is installed between the two side panels 42 for joint rotation via an electric slider, and multiple groups of rectangular bars 44 are fixedly installed on the middle rod 43. The inner wall of the grinding roller 45 is sleeved on the outside of the middle rod 43 and the rectangular bars 44, and springs sleeved on the middle rod 43 are provided on both sides of the grinding roller 45.

[0049] The storage box 41 can be used to store the mud and sand, and the mud and sand can impact the side wall of the impeller to simulate the jamming of the impeller by the mud and sand in actual use, thereby detecting the rotation of the impeller.

[0050] A bracket 46 is fixedly installed in the middle of the upper end surface of the storage box 41, a cross bar is fixedly installed in the middle of the bracket 46, a flip plate 47 is rotatably installed on the outside of the cross bar, a spring is fixedly installed on one side of the bracket 46 and the end of the spring away from the bracket 46 is connected to the flip plate 47, a rotating rod 48 is rotatably installed on the other side of the bracket 46, a cam 481 is fixedly installed in the middle of the rotating rod 48, a middle plate 461 fixedly connected to the bracket 46 is provided above the cam 481, a push rod 462 is slidably installed in the middle of the middle plate 461, and the lower part of the push rod 462 is arc-shaped and is always in contact with the cam 481.

[0051] The push rod 462 slides up and down to intermittently push the flip plate 47. When the flip plate 47 is pushed, it rotates along the outside of the cross bar. When the flip plate 47 rotates, the top component 493 drives the synchronous plate 492 to synchronously press down multiple piston rods 491. The piston rod 491 is pressed down to inject the mud in the compression cylinder 49 into the side groove on the impeller, thereby simulating the mud infusion of the impeller into the mud in the impeller during actual work.

[0052] Pulleys are fixedly installed on one side of the rotating rod 48 and one side of the middle rod 43, and the pulleys are driven by belts. A conveying pipe is provided between the compression cylinder 49 and the storage box 41. A discharge pipe facing the impeller is provided at the lower part of the compression cylinder 49. A piston rod 491 is slidably installed inside the compression cylinder 49, and a synchronous plate 492 is fixedly installed between the multiple piston rods 491. A top component 493 sliding in the flip plate 47 is fixedly installed on the upper end surface of the synchronous plate 492.

[0053] The conveying pipe can be used to transfer the mud and sand stored in the storage box 41 to the compression cylinder 49, and as the piston rod 491 is pressed down in the compression cylinder 49, the mud and sand in the compression cylinder 49 impacts the groove on the edge of the impeller through the discharge pipe.

[0054] A regulating plate 25 is rotatably installed on one side of the conversion plate 22 through an electric slider. A sliding groove corresponding to the end sleeve 24 is opened on the conversion plate 22. A sliding member 23 is slidably installed in the sliding groove. The sliding member 23 is connected to the corresponding end sleeve 24 through a motor rotation. The inner wall of the end sleeve 24 is provided with a clamp for fixing the impeller.

[0055] By setting the clamp on the inner wall of the end sleeve 24, the round rods at both ends of the impeller group can be clamped and fixed, and the end sleeve 24 of each group can be driven to rotate by turning on the motor, so as to drive the impeller to rotate, thereby realizing the test of the surface strength and edge wear resistance of the impeller, and the conversion plate 22 can be driven to slide up and down in the test box 1 by turning on the electric slider, and a certain amount of water is pre-injected into the test box 1, and the rotation of the impeller under different water pressures can be detected, so that the test of the impeller is more real and comprehensive.

[0056] An arc groove 26 is formed in an annular direction on the regulating plate 25, and an internal rod 27 is slidably installed in the arc groove 26. A push-pull plate 28 is hinged between the internal rod 27 and the corresponding slide 23, and a bidirectional telescopic rod is installed between the conversion plates 22 on both sides.

[0057] Two symmetrically arranged hydraulic rods 51 are provided on the side of the inner cavity of the test box 1 away from the support frame 30, and a rectangular plate 52 is fixedly installed between the two hydraulic rods 51. A plurality of groups of sliding rods 53 are slidably installed on the rectangular plate 52. A cleaning plate 54 corresponding to the impeller is fixedly installed at one end of the sliding rod 53, and a brush is provided on the inner wall of the cleaning plate 54.

[0058] The cleaning plate 54 is brought into contact with the tested impeller group by opening and pushing forward the hydraulic rod 51, and then the motor is turned on to make the end sleeve 24 of the corresponding group drive the impeller group to rotate in a circular direction, so that the brush on the cleaning plate 54 scrubs the mud and sand in the groove at the edge of the impeller, and cooperates with the rotation of the impeller to flush the groove with water in the test box 1, and under the setting of the spring, the brush can also impact-scrub the impeller, further strengthening the cleaning of the mud and sand inside the impeller.

[0059] Displacement grooves 55 are provided on both sides of the upper end surface of the test box 1. A screw is provided in the displacement groove 55. A side plate 56 that slides with the displacement groove 55 is rotatably installed outside the screw. A lifting frame 57 is slidably installed on the side plate 56 through an electric slider. A wiping plate 58 is fixedly installed between the lifting frames 57, and the lower part of the wiping plate 58 is provided with a sponge.

[0060] The side plate 56 slides in the displacement groove 55 to move the wiping plate 58 to the middle of the test box 1. Then the electric slider opens to make the wiping plate 58 contact the impeller that has been cleaned and moved to the upper part of the test box 1, thereby completing the wiping and draining of the outer edge of the impeller.

[0061] When the present invention is in use, the arrangement of the inner wall clamp of the end sleeve 24 can clamp and fix the round rods at both ends of the impeller group, and the motor is turned on to drive the end sleeve 24 of each group to rotate, so as to drive the impeller to rotate. The close proximity between multiple groups of end sleeves 24 can fix multiple groups of impellers. At the same time, the motor is turned on to drive the electric push rods 21 on both sides to rotate, and can also make the multiple groups of impellers between the conversion plates 22 on both sides to perform the position-changing operation. At the same time, after the multiple impellers are tested, they are quickly disassembled. The electric slider is turned on to drive the two conversion plates 22 to slide in the test box 1, so as to meet the impeller test under different water pressure environments in the test box 1, so that the impeller simulates the rotation of the impeller under different water pressures during actual use.

[0062] The sliding of the push plate 323 drives the active wedge block 324 to squeeze the driven wedge blocks 326 on both sides. The driven wedge blocks 326 on both sides push the two knocking rods 325 respectively. When the knocking rods 325 slide outward, they drive the contact block 327 to knock on the two sides of the impeller, thereby realizing the knocking force test on the outside of the impeller. By setting the pressure sensor in the middle of the contact block 327, the intensity of the knocking on the impeller can also be monitored. At the same time, the motor is turned on to drive the end sleeve 24 of each group to rotate. When the end sleeve 24 rotates, it drives the impeller to rotate, so that the impeller rotates to perform strength test, and finally realizes the circumferential knocking test of the impeller, and drives the impeller through each group of end sleeves 24. The wheel slides toward the knocking rod 325, and can also realize the circumferential knocking of the impeller and the radial knocking test of the impeller at the same time, so that it can meet the comprehensiveness and uniformity of the knocking force test on both sides of the impeller. Compared with other existing technologies, the present invention drives the impeller to rotate through the end sleeve 24, and each group of end sleeves 24 slides in the slide groove, so that the impeller can be knocked circumferentially and radially at the same time, so that the surface of the impeller can be evenly and comprehensively tested for strength, and through the setting of the grinding roller 45, in conjunction with the rotation of the impeller, when the strength knocking test is performed on the outside of the impeller, the grinding roller 45 can perform a wear resistance test on the outer edge of the impeller, further enhancing the diversity of the impeller test;

[0063] When the push plate 323 drives the active wedge block 324 to cancel the squeezing of the driven wedge block 326, the two knocking rods 325 approach each other under the action of the spring, and as the push plate 323 squeezes the driven wedge block 326 through the active wedge block 324 again, the two contact blocks 327 knock on the impeller again, and the above operation is repeated to perform a reciprocating knocking operation on the impeller, so as to make the data more accurate when detecting the strength of the impeller, the motor 36 is turned on, and the motor 36 intermittently pushes the contact plate 362 through the squeezing wheel 361. When the contact plate 362 is pushed, it squeezes the regulating rod 341 through the traction groove 351 on the driving plate 35. After the regulating rod 341 is squeezed, the sliding of the push plate 323 is controlled, and finally the contact block 327 is controlled to perform a strength knocking test on the outside of the impeller;

[0064] The storage box 41 is provided to store mud and sand. The side wall of the impeller is impacted by mud and sand to simulate the jamming of the impeller inside by mud and sand during actual use, thereby detecting the rotation of the impeller. The push rod 462 slides up and down to intermittently push the flip plate 47. When the flip plate 47 is pushed, it rotates along the outside of the cross bar. When the flip plate 47 rotates, the top component 493 drives the synchronous plate 492 to synchronously press down multiple piston rods 491. The piston rod 491 is pressed down to inject the mud and sand in the compression cylinder 49 into the side groove on the impeller, thereby simulating the mud and sand infusion of the impeller in actual work. The electric slider is opened to drive the conversion plate 22 to slide up and down in the test box 1. A certain amount of water is pre-injected into the test box 1. The rotation of the impeller under different water pressures can also be detected, making the test of the impeller more realistic and comprehensive.

[0065] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments, and the above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, and these changes and improvements all fall within the scope of the present invention to be protected.

Claims

1. A submersible pump impeller testing device, comprising a test box (1), characterized in that: The test box (1) has moving blocks (20) slidably mounted on both sides of the middle part through electric sliders, and the moving blocks (20) on both sides are both mounted with corresponding electric push rods (21) on the sides thereof which are close to each other through motor rotation, and the ends of the electric push rods (21) which are away from the moving blocks (20) are fixedly mounted with conversion plates (22), and multiple groups of annularly arranged end sleeves (24) are mounted between the conversion plates (22) on both sides, and the space between each group of end sleeves (24) is used for placing the impeller during the impeller test. A support frame (30) is provided on one side of the inner cavity of the test box (1), a horizontal plate (31) is fixedly installed on the lower end surface of the support frame (30), a plurality of external plates (32) are evenly spaced on the side of the horizontal plate (31) close to the impeller, a column frame (321) is fixedly installed on the side of the external plate (32) away from the horizontal plate (31), a middle groove (322) communicating with the inner cavity of the column frame (321) is opened in the middle of the horizontal plate (31), and a push plate (323) is slidably installed in the middle groove (322); An active wedge block (324) is fixedly mounted on one end of the push plate (323), knocking rods (325) are slidably mounted on both sides of the column frame (321), and corresponding driven wedge blocks (326) are mounted on the sides of the knocking rods (325) close to each other, and a contact block (327) is fixedly mounted on one end of the knocking rod (325) away from the driven wedge block (326), and a pressure sensor is arranged in the middle of the contact block (327), and a grinding roller (45) corresponding to the column frame (321) is arranged on the front side of the support frame (30), and a compression cylinder (49) is arranged on the rear side of the grinding roller (45).

2. A submersible pump impeller testing device according to claim 1, characterized in that: A cylinder is installed between the support frame (30) and the test box (1); a spring is sleeved on the outside of the knocking rod (325); a rectangular groove (33) is provided on the lower end surface of the external plate (32); a vertical block (330) fixedly connected to the push plate (323) is provided in the rectangular groove (33); a fixed block (331) fixedly connected to the external plate (32) is provided on one side of the vertical block (330); a spring is connected between the fixed block (331) and the vertical block (330); a regulating groove (34) is provided on the upper end surface of the external plate (32); a regulating rod (341) fixedly connected to the push plate (323) is provided in the regulating groove (34).

3. A submersible pump impeller testing device according to claim 2, characterized in that: A driving plate (35) is placed above the outer plate (32), and a plurality of traction grooves (351) are provided on the driving plate (35), and the traction grooves (351) are located outside the corresponding regulating rods (341) and sleeved thereon. A motor (36) is fixedly mounted in the middle of the horizontal plate (31), and an extrusion wheel (361) is fixedly mounted at the output end of the motor (36), and a contact plate (362) fixedly connected to the driving plate (35) is provided on one side of the extrusion wheel (361).

4. A submersible pump impeller testing device according to claim 1, characterized in that: A storage box (41) is fixedly installed on the front side of the support frame (30), and side plates (42) are fixedly installed on both sides of the storage box (41). A middle rod (43) is installed between the two side plates (42) for joint rotation via an electric slider, and a plurality of groups of rectangular strips (44) are fixedly installed on the middle rod (43). The inner wall of a grinding roller (45) is sleeved on the outside of the middle rod (43) and the rectangular strips (44), and springs sleeved on the middle rod (43) are provided on both sides of the grinding roller (45).

5. A submersible pump impeller testing device according to claim 4, characterized in that: A bracket (46) is fixedly installed in the middle of the upper end surface of the storage box (41), a cross bar is fixedly installed in the middle of the bracket (46), a flip plate (47) is rotatably installed on the outside of the cross bar, a spring is fixedly installed on one side of the bracket (46), and the end of the spring away from the bracket (46) is connected to the flip plate (47), a rotating rod (48) is rotatably installed on the other side of the bracket (46), a cam (481) is fixedly installed in the middle of the rotating rod (48), a middle plate (461) fixedly connected to the bracket (46) is provided above the cam (481), a push rod (462) is slidably installed in the middle of the middle plate (461), and the lower part of the push rod (462) is arc-shaped and always in contact with the cam (481).

6. A submersible pump impeller testing device according to claim 5, characterized in that: A pulley is fixedly installed on one side of the rotating rod (48) and one side of the middle rod (43), and the pulleys are driven by a belt. A conveying pipe is provided between the compression cylinder (49) and the storage box (41), and a discharge pipe facing the impeller is provided at the lower part of the compression cylinder (49). A piston rod (491) is slidably installed inside the compression cylinder (49), and a synchronization plate (492) is fixedly installed between multiple piston rods (491). A top component (493) sliding inside the flip plate (47) is fixedly installed on the upper end surface of the synchronization plate (492).

7. A submersible pump impeller testing device according to claim 1, characterized in that: A regulating plate (25) is rotatably mounted on one side of the conversion plate (22) via an electric slider; a slide groove corresponding to the end sleeve (24) is provided on the conversion plate (22); a slide member (23) is slidably mounted in the slide groove; the slide member (23) is rotatably connected to the corresponding end sleeve (24) via a motor; and a clamp for fixing the impeller is provided on the inner wall of the end sleeve (24).

8. A submersible pump impeller testing device according to claim 7, characterized in that: The regulating plate (25) is provided with an arc groove (26) in an annular direction, a built-in rod (27) is slidably installed in the arc groove (26), a push-pull plate (28) is hinged between the built-in rod (27) and the corresponding sliding member (23), and a bidirectional telescopic rod is installed between the conversion plates (22) on both sides.

9. A submersible pump impeller testing device according to claim 1, characterized in that: Two symmetrically arranged hydraulic rods (51) are provided on one side of the inner cavity of the test box (1) away from the support frame (30); a rectangular plate (52) is fixedly installed between the two hydraulic rods (51); a plurality of groups of sliding rods (53) are slidably installed on the rectangular plate (52); a cleaning plate (54) corresponding to the impeller is fixedly installed at one end of the sliding rod (53); and a brush is provided on the inner wall of the cleaning plate (54).

10. The submersible pump impeller testing device according to claim 1, characterized in that: The upper end surface of the test box (1) is provided with displacement grooves (55) on both sides, a screw is provided in the displacement groove (55), a side plate (56) is rotatably mounted on the outside of the screw and slides with the displacement groove (55), a lifting frame (57) is slidably mounted on the side plate (56) via an electric slider, a wiping plate (58) is fixedly mounted between the lifting frames (57), and a sponge is provided at the bottom of the wiping plate (58).

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