A test bench for water pumps

Abstract

The invention discloses a test bench for a water pump, which relates to the technical field of water pump testing, and comprises a support frame, a brine preparation mechanism is arranged on the top of the support frame, a feeding mechanism is arranged on the top of the brine preparation mechanism, a reduction mechanism is arranged on one side of the support frame, and a grinding mechanism is arranged on the bottom of the reduction mechanism. The test bench for the water pump can prepare the liquid required for the test through the brine preparation mechanism by virtue of the characteristics of sodium chloride being saturated with water and being able to continue to dissolve after being heated, so as to provide blocking conditions for the pump, dissolve and clear the blockage in the pump through the heating function of the reduction mechanism 5, and crystallize and reduce the sodium chloride component in the brine through the evaporation reduction scraping function of the reduction mechanism and the grinding mechanism, so as to realize the recycling of resources, facilitate cleaning and realize the recycling of the test pump, thereby greatly improving the practicability of the device, effectively reducing the loss of resources, and further reducing the testing cost.

Description

Technical Field

[0001] The invention relates to the technical field of water pump testing, and in particular to a test bench for a water pump. Background Art

[0002] The water pump test is a device used to test the performance of water pumps of various types and specifications, such as flow, head, power and efficiency. It is mainly composed of a test bench, a motor, a measurement and control instrument, a fuel tank, pipelines, etc. The operation process includes starting the motor, adjusting the working state of the water pump, and obtaining and recording performance data through the measurement and control instrument. It is very important to test whether the water pump is blocked when pumping sewage. If the water pump is prone to blockage when pumping sewage containing large particles, it may not work properly in actual use. Generally, the corresponding working environment is simulated, and liquid containing impurities is injected into the water pump for actual measurement, and its operating performance is observed to determine whether it will be blocked.

[0003] The existing technology has the following defects: First, the lower port of the water pipe where the foreign matter is placed faces the lower port of the foreign matter discharge bucket, so the impurities cannot be fully integrated with the water and are pumped away, resulting in inaccurate test results. Second, in actual use, in addition to pumping sewage from calm water surfaces, the water pump can also pump sewage in a centrifugal state. Therefore, the existing technology lacks a test bench that can test the impurity extraction ability of the water pump in a centrifugal state.

[0004] Chinese patent CN116696754B discloses a test bench for water pump production and its use method, including a water storage barrel and an impurity injection piece, the impurity injection piece is connected to the water storage barrel, the water storage barrel is provided with a rotating toggle piece for toggling the water in the water storage barrel; the water storage barrel is connected to a water outlet pipe, the outlet end of the water outlet pipe can be connected to a water pump; the water pump production test bench also includes a water pump blockage detection piece for detecting whether the water pump is blocked. The rotating toggle piece of the device can mix the impurities, thereby simulating the real sewage discharge scene and improving the accuracy and precision of the sewage discharge capacity detection of the water pump. In addition, during the detection, the rotating toggle piece can be rotated continuously to make the sewage in a centrifugal state, thereby detecting the sewage discharge capacity of the water pump for the sewage in the centrifugal state.

[0005] Although the above-mentioned Chinese patent has achieved the goal of mixing impurities, thereby simulating the actual sewage discharge scene and improving the accuracy and precision of the sewage discharge capacity detection of the water pump. In addition, during the detection, the rotary toggle can be rotated continuously to make the sewage in a centrifugal state, thereby detecting the sewage discharge capacity of the water pump for the sewage in the centrifugal state; however, the device cannot restore the raw materials required for sewage simulation, and thus a large amount of raw materials are consumed in a large number of testing operations, resulting in resource loss and inconvenience in cleaning. In addition, when testing the extreme sewage discharge capacity of the pump, the pump will be blocked inside, and the above-mentioned equipment cannot clear the blocked pump and subsequently use it.

[0006] Therefore, it is necessary to invent a test bench for a water pump to solve the above problems. Summary of the invention

[0007] The object of the present invention is to provide a test bench for a water pump to solve the problems of large waste of resources and inability to clear blockages proposed in the above-mentioned background technology.

[0008] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a test bench for a water pump, comprising a support frame, a pump assembly seat is installed on the top of the support frame, a brine preparation mechanism is arranged on the top of the support frame, a feeding mechanism is arranged on the top of the brine preparation mechanism, a reduction mechanism is arranged on one side of the support frame, and a grinding mechanism is arranged on the bottom of the reduction mechanism; the brine preparation mechanism comprises a preparation tank arranged on the top of the support frame, a water outlet flange pipe is penetrated and connected to the outer side of the preparation tank, a stirring motor is installed on the top of the preparation tank, and a density detector is penetrated and connected to the outer wall of the preparation tank; the reduction mechanism comprises an evaporation box arranged on one side of the support frame, a heating outer box is arranged on the outer side of the evaporation box, and a water inlet flange pipe is penetrated and connected to the top of the evaporation box Two groups of electric heating devices are installed on one side of the heating outer box, and the two groups of electric heating devices are symmetrically distributed on one side of the heating outer box. A water pump is installed on the top of the evaporator box, and a water outlet pipe is installed on one side of the water pump. One end of the water outlet pipe is provided with a three-way pipe joint, one side of the three-way pipe joint is provided with a first water injection pipe, and the other side of the three-way pipe joint is provided with a second water injection pipe; the reduction mechanism also includes an inner wall scraper cylinder arranged on the top of the evaporator box, an inner wall output rod is arranged at the bottom of the inner wall scraper cylinder, an annular scraper blade is movably connected inside the evaporator box, a bottom wall scraper cylinder is installed on one side of the evaporator box, a bottom wall output rod is installed on one side of the bottom wall scraper cylinder, and one end of the bottom wall output rod is fixedly connected with a strip scraper blade.

[0009] Preferably, the brine preparation mechanism also includes a drainage valve pipe that passes through and is connected to the outside of the preparation tank, a water outlet valve is installed on the outside of the water outlet flange pipe, a stirring shaft is installed at the bottom of the stirring motor, a plurality of groups of stirring blades are fixedly connected to the outside of the stirring shaft, the plurality of groups of stirring blades are linearly distributed on the outside of the stirring shaft, and a waterproof bearing is installed at the bottom of the stirring shaft.

[0010] Preferably, the feeding mechanism comprises a feed hopper arranged at the top of the preparation tank, a feed discharge pipe is arranged at the bottom of the feed hopper, an opening and closing hopper cover is movably connected to the top of the feed hopper, and an opening and closing rotating shaft is installed on one side of the opening and closing hopper cover.

[0011] Preferably, the feeding mechanism also includes a guide shaft arranged inside the discharge pipe, the outer wall of the guide shaft is fixedly connected with a spiral blade, the inner wall of the opening and closing bucket cover is fixedly connected with a load-bearing bearing rod, a feeding motor is installed on the top of the preparation tank, one end of the feeding motor output shaft is fixedly connected with a driving bevel gear, the bottom end of the opening and closing rotating shaft is fixedly connected with a driven bevel gear, and the outer wall of the opening and closing rotating shaft is fixedly connected with a conical protective cap.

[0012] Preferably, the reduction mechanism also includes a water inlet valve arranged on the outside of the water inlet flange pipe, an oil storage chamber is arranged inside the heating outer box, a plurality of groups of heat-conducting copper rods are arranged inside the oil storage chamber, the plurality of groups of heat-conducting copper rods are distributed in a rectangular shape inside the oil storage chamber, transverse connecting rods are arranged at both ends of the heat-conducting copper rods, two groups of the heat-conducting copper rods are fixedly connected by the transverse connecting rods, a plurality of groups of heat-exchange fins are installed on the outside of the heat-conducting copper rods, the plurality of groups of heat-exchange fins are distributed linearly on the outside of the heat-conducting copper rods, and a condensation outlet pipe is connected through the top of the evaporator box.

[0013] Preferably, the reduction mechanism also includes a cross connecting plate arranged on the top of the annular scraper blade, the annular scraper blade is fixedly connected to the inner wall output rod via the cross connecting plate, the top of the inner wall scraper cylinder is threadedly connected with multiple groups of assembly bolts, and the multiple groups of assembly bolts are distributed in a rectangular shape on the top of the inner wall scraper cylinder.

[0014] Preferably, the reduction mechanism also includes a material guiding inclined tube arranged on one side of the evaporator box, a sealing material blocking plate is movably inserted on one side of the material guiding inclined tube, a non-slip pull ring is fixedly connected to one side of the sealing material blocking plate, two groups of fastening bolts are threadedly connected to one side of the sealing material blocking plate, the two groups of fastening bolts are symmetrically distributed on one side of the sealing material blocking plate, two groups of fastening threaded holes are opened on one side of the material guiding inclined tube, and the two groups of fastening threaded holes are symmetrically distributed on one side of the material guiding inclined tube.

[0015] Preferably, the restoration mechanism also includes two groups of support plates arranged on the top of the pump assembly seat, the two groups of support plates are symmetrically distributed on the top of the pump assembly seat, one side of the water inlet flange pipe is threadedly connected with multiple groups of flange bolts, and the multiple groups of flange bolts are annularly distributed on one side of the water inlet flange pipe, the connecting end of the water inlet flange pipe is movably connected with a driving turbine fan inside, the top of the driving turbine fan is fixedly connected with a rotating shaft, the outer wall of the water inlet flange pipe is fixedly connected with a rotating bearing, the internal movably connected with multiple groups of bearing balls of the rotating bearing, the multiple groups of bearing balls are annularly distributed inside the rotating bearing, the top of the rotating bearing is fixedly connected with a limited base, the top of the rotating shaft is fixedly connected with a movable block, and the outer wall of the movable block is fixedly connected with a rotating pointer.

[0016] Preferably, the grinding mechanism includes a grinding box arranged at the bottom of the evaporation box, a grinding jar is installed inside the grinding box, a supporting base is arranged at the bottom of the grinding jar, a feeding trough is opened on the outer wall of the grinding jar, a grinding drum is movably connected inside the grinding jar, a plurality of groups of grinding rollers are installed on the outer side of the grinding drum, the plurality of groups of grinding rollers are distributed in a ring shape on the outer side of the grinding drum, two groups of structural shafts are fixedly connected at both ends of the grinding drum, the two groups of structural shafts are symmetrically distributed at both ends of the grinding drum, a supporting bearing is installed on the outer side of the structural shaft, a grinding motor is installed on one side of the grinding box, a plurality of groups of connecting bolts are threadedly connected to one end of the output shaft of the grinding motor, and the plurality of groups of connecting bolts are distributed in a ring shape at one end of the output shaft of the grinding motor.

[0017] Preferably, the grinding mechanism further comprises a screening plate arranged at the bottom of the grinding tank, a material storage pipe is connected through the bottom of the grinding box, and a collection drawer is movably connected to one side of the material storage pipe.

[0018] Technical effects and advantages of the present invention:

[0019] 1. In the test process of the present invention, the test salt water is injected into the evaporation box through the connection between the water inlet flange pipe and the pump outlet pipe, and the electrical energy is converted into thermal energy through two sets of internal resistors of the electric heating equipment, and the oil body in the heating outer box is heated through multiple sets of heat-conducting copper rods, so that the salt water in the evaporation box can be evaporated and reduced, and the inner wall scraping cylinder and the bottom wall scraping cylinder drive the annular scraping blade and the strip scraping blade to scrape off the sodium chloride crystals adhering to the inner wall along the inner wall of the evaporation box, thereby realizing the reduction of the sewage raw materials required for the anti-blocking test simulation, reducing the loss of resources, and reducing the test cost;

[0020] 2. During the test of the present invention, when the performance of the pump reaches its limit, the brine heated in the evaporation box is injected into the water outlet flange pipe and the water inlet flange pipe through the water outlet pipe, the first water injection pipe and the second water injection pipe respectively by the water pump, so that the sodium chloride at the blocked position of the pump can be melted, thereby achieving unblocking of the pump and subsequent use of the pump;

[0021] 3. Before the test, the present invention drives the active bevel gear to rotate through the feeding motor, and drives the spiral blades on the guide shaft to rotate on the load-bearing bearing rod through the engagement of the driven bevel gear and the active bevel gear, so that the sodium chloride particles can be injected into the stirring mechanism, and the stirring motor drives multiple groups of stirring blades on the stirring shaft to rotate on the waterproof bearing, so that the sodium chloride particles and water can be fully integrated. When the salt water is saturated, the sodium chloride will not continue to dissolve. The continuous addition of particles will be mixed in the saturated salt water to meet the sewage requirements for the test. This preparation method is highly efficient and convenient for users to prepare operations;

[0022] 4. After sodium chloride is reduced, the present invention drives the strip-shaped scraper blade through the bottom wall scraper cylinder to push the reduced solid sodium chloride into the grinding tank through the guide inclined tube, and drives the multiple groups of grinding rollers on the grinding drum to rotate on the support bearings through the grinding motor, so that the reduced sodium chloride can be ground. After grinding, it is stored in the collection drawer in the storage tube, so as to facilitate the reuse of subsequent users;

[0023] 5. When the pump is blocked, the present invention drives the turbine fan in the water inlet flange pipe to rotate the rotating pointer on the movable block driven by the flow of water in the pipe to check whether the pump is blocked. When the inside of the pump is completely blocked, the brine in the water inlet flange pipe will stop flowing, so that the driving turbine fan cannot drive the rotating pointer to rotate, thereby facilitating the user to check the blockage situation. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for use in the embodiments are briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without creative work.

[0025] Figure 1 The figure is a schematic diagram of the overall structure of a test bench for a water pump according to the present invention.

[0026] Figure 2 The figure is a schematic diagram of the top structure of a test bench for a water pump according to the present invention.

[0027] Figure 3 The present invention is a schematic structural diagram of a brine preparation mechanism for a test bench for a water pump.

[0028] Figure 4 The present invention is a schematic structural diagram of a feeding mechanism of a test bench for a water pump.

[0029] Figure 5 The present invention is a schematic diagram of the explosion structure of a reduction mechanism of a test bench for a water pump.

[0030] Figure 6 The present invention is a schematic diagram of the internal structure of a reduction mechanism of a test bench for a water pump.

[0031] Figure 7 The present invention is a schematic diagram of the structure of a reduction mechanism heating assembly of a test bench for a water pump.

[0032] Figure 8 The present invention is a schematic structural diagram of a reduction mechanism blockage detection component of a test bench for a water pump.

[0033] Fig. 9The present invention is a schematic diagram of the exploded structure of a grinding mechanism of a test bench for a water pump.

[0034] Fig.10 The figure is a schematic diagram of the internal structure of a grinding mechanism of a test bench for a water pump according to the present invention.

[0035] In the figure: 1. Support frame; 2. Pump assembly seat; 3. Brine preparation mechanism; 301. Preparation tank; 302. Drainage valve pipe; 303. Water outlet flange pipe; 304. Water outlet valve; 305. Stirring motor; 306. Stirring shaft; 307. Stirring blade; 308. Waterproof bearing; 309. Density detector; 4. Feeding mechanism; 401. Feed hopper; 402. Discharge pipe; 403. Opening and closing hopper cover; 404. Opening and closing rotating shaft; 405. Material guide shaft; 406. Spiral blade; 407. Load-bearing shaft Support rod; 408, feeding motor; 409, driving bevel gear; 410, driven bevel gear; 411, cone-shaped protective cap; 5, reduction mechanism; 501, evaporation box; 502, heating outer box; 503, water inlet flange pipe; 504, water inlet valve; 505, oil storage chamber; 506, electric heating equipment; 507, heat-conducting copper rod; 508, horizontal connecting rod; 509, heat exchange fin; 510, condensation outlet pipe; 511, water pump; 512, water outlet pipe; 513, three-way pipe joint; 514, First water injection pipe; 515, second water injection pipe; 516, inner wall scraper cylinder; 517, inner wall output rod; 518, annular scraper blade; 519, cross connecting plate; 520, assembly bolt; 521, bottom wall scraper cylinder; 522, bottom wall output rod; 523, strip scraper blade; 524, guide inclined pipe; 525, sealing material blocking plate; 526, anti-slip pull ring; 527, fastening bolt; 528, fastening threaded hole; 529, support plate; 530, flange bolt; 531, driving vortex Wheel fan; 532, rotating shaft; 533, rotating bearing; 534, bearing ball; 535, limiting base; 536, movable block; 537, rotating pointer; 6, grinding mechanism; 601, grinding box; 602, grinding tank; 603, supporting base; 604, feeding trough; 605, grinding drum; 606, grinding roller; 607, structural shaft; 608, supporting bearing; 609, grinding motor; 610, connecting bolt; 611, screening plate; 612, storage tube; 613, collecting drawer. DETAILED DESCRIPTION

[0036] In order to make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the technical solution 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. Therefore, the following detailed description of the embodiments of the present invention provided in the drawings is not intended to limit the scope of the claimed invention, but merely represents selected embodiments of the present invention. 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.

[0037] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "vertical", "horizontal", "inner", "outer", etc. indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, or the positions or positional relationships in which the invented product is usually placed when in use. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific position, be constructed and operated in a specific position, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", "third", etc. are only used to distinguish the description, and cannot be understood as indicating or implying relative importance.

[0038] In addition, the terms "horizontal", "vertical" and the like do not mean that the components are required to be absolutely horizontal or suspended, but can be slightly tilted. For example, "horizontal" only means that its direction is more horizontal than "vertical", and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0039] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" 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 direct connection, or an indirect connection through an intermediate medium, or it can be the internal communication of two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0040] The present invention provides Figure 1-10A test bench for a water pump shown in the figure comprises a support frame 1, wherein the support frame 1 can provide support for the upper components, a pump assembly seat 2 is installed on the top of the support frame 1, wherein the pump assembly seat 2 is the pump assembly component to be tested, a brine preparation mechanism 3 is arranged on the top of the support frame 1, a feeding mechanism 4 is arranged on the top of the brine preparation mechanism 3, a reduction mechanism 5 is arranged on one side of the support frame 1, and a grinding mechanism 6 is arranged on the bottom of the reduction mechanism 5; the brine preparation mechanism 3 comprises a preparation tank 301 arranged on the top of the support frame 1, wherein the preparation tank 301 is a sewage preparation unit required for the test, and the ... The outer side of the tank 301 is connected with a water outlet flange pipe 303, wherein the water outlet flange pipe 303 can be connected to the water inlet end of the pump, a stirring motor 305 is installed on the top of the preparation tank 301, wherein the stirring motor 305 provides power for the stirring function of the mechanism, and a density detector 309 is connected with the outer wall of the preparation tank 301, wherein the density detector 309 can detect the density of the brine in the preparation tank 301, so as to facilitate the user to know the saturation state of the brine; the reduction mechanism 5 includes an evaporation box 501 arranged on one side of the support frame 1, wherein the evaporation box 501 is the brine in the brine Sodium chloride reduction unit, a heating outer box 502 is arranged on the outside of the evaporation box 501, wherein the heating outer box 502 is a heating unit, a water inlet flange pipe 503 is connected through the top of the evaporation box 501, wherein the water inlet flange pipe 503 can be connected to the water outlet end of the pump machine, so as to conveniently discharge the brine during the test, two groups of electric heating devices 506 are installed on one side of the heating outer box 502, and the two groups of electric heating devices 506 are symmetrically distributed on one side of the heating outer box 502, wherein the internal resistors of the two groups of electric heating devices 506 can convert electrical energy into thermal energy to realize the heating function of the mechanism, and the evaporation box 50 1 is provided with a water pump 511 on the top, wherein the water pump 511 can inject the heated salt water into the water inlet and outlet of the pump through the water outlet pipe 512, so as to clear the blockage through high temperature, a water outlet pipe 512 is provided on one side of the water pump 511, a three-way pipe joint 513 is provided on one end of the water outlet pipe 512, a first water injection pipe 514 is provided on one side of the three-way pipe joint 513, and a second water injection pipe 515 is provided on the other side of the three-way pipe joint 513, wherein the three-way pipe joint 513 can connect the water outlet pipe 512 with the first water injection pipe 514 and the second water injection pipe 515;The reduction mechanism 5 further includes an inner wall scraper cylinder 516 disposed at the top of the evaporation box 501, an inner wall output rod 517 is disposed at the bottom of the inner wall scraper cylinder 516, and an annular scraper blade 518 is movably connected to the inside of the evaporation box 501. When the inner wall scraper cylinder 516 is energized, the annular scraper blade 518 can be pushed by the inner wall output rod 517 to move up and down along the inner wall of the evaporation box 501, so that the sodium chloride raw material adhering to the inner wall can be scraped off. A bottom wall scraper cylinder 521 is installed on the side, and a bottom wall output rod 522 is installed on one side of the bottom wall scraper cylinder 521. One end of the bottom wall output rod 522 is fixedly connected to a strip scraper blade 523. When the bottom wall scraper cylinder 521 is powered on, the strip scraper blade 523 can be pushed to move back and forth along the bottom wall of the evaporation box 501 through the bottom wall output rod 522, so that the sodium chloride raw material adhering to the bottom wall can be scraped off, and the reduced sodium chloride can be pushed into the grinding unit below. ;

[0041] The salt water preparation mechanism 3 also includes a drainage valve tube 302 that penetrates and is connected to the outside of the preparation tank 301, a water outlet valve 304 is installed on the outside of the water outlet flange tube 303, a stirring shaft 306 is installed at the bottom of the stirring motor 305, and a plurality of stirring blades 307 are fixedly connected to the outside of the stirring shaft 306. The plurality of stirring blades 307 are linearly distributed on the outside of the stirring shaft 306, and a waterproof bearing 308 is installed at the bottom of the stirring shaft 306. The use of the drainage valve tube 302 facilitates the user to connect with the external water source pipeline and replenish water resources for the preparation tank 301. The use of the water outlet valve 304 facilitates the user to control the discharge of the water outlet flange tube 303. The plurality of stirring blades 307 on the stirring shaft 306 can rotate rapidly when the stirring motor 305 is powered on, so that the sodium chloride raw material and water can be fully stirred and fused, thereby improving the preparation efficiency. The use of the waterproof bearing 308 can provide stable support for the stirring shaft 306 without affecting its rotation.

[0042] The feeding mechanism 4 includes a feed hopper 401 arranged on the top of the preparation tank 301, a discharge pipe 402 is arranged at the bottom of the feed hopper 401, an opening and closing hopper cover 403 is movably connected to the top of the feed hopper 401, and an opening and closing shaft 404 is installed on one side of the opening and closing hopper cover 403. The conical setting of the feed hopper 401 is convenient for the delivery of sodium chloride raw materials and avoids spilling. The opening and closing hopper cover 403 can be opened and closed by the opening and closing shaft 404, so as to facilitate the user's feeding, and at the same time, the opening of the feed hopper 401 can be covered to prevent dust and impurities from entering the preparation unit.

[0043] The feeding mechanism 4 also includes a guide shaft 405 arranged inside the feeding tube 402, the outer wall of the guide shaft 405 is fixedly connected with a spiral blade 406, the inner wall of the opening and closing bucket cover 403 is fixedly connected with a load-bearing bearing rod 407, a feeding motor 408 is installed on the top of the preparation tank 301, one end of the output shaft of the feeding motor 408 is fixedly connected with a driving bevel gear 409, the bottom end of the opening and closing rotating shaft 404 is fixedly connected with a driven bevel gear 410, and the outer wall of the opening and closing rotating shaft 404 is fixedly connected with a conical protective cap 411, wherein When powered on, the feeding motor 408 can drive the active bevel gear 409 to rotate through the output shaft, and the driven bevel gear 410 at the bottom end of the guide shaft 405 is engaged with the active bevel gear 409, thereby driving the spiral blade 406 on the guide shaft 405 to rotate on the load-bearing bearing rod 407, thereby guiding the raw materials and improving the feeding efficiency. The use of the conical protective cap 411 can block the raw materials falling from above, preventing the raw materials from entering the tooth grooves of the driven bevel gear 410 and the active bevel gear 409 to affect the transmission.

[0044] The reduction mechanism 5 also includes a water inlet valve 504 arranged on the outside of the water inlet flange pipe 503, an oil storage chamber 505 is arranged inside the heating outer box 502, and multiple groups of heat-conducting copper rods 507 are arranged inside the oil storage chamber 505, and the multiple groups of heat-conducting copper rods 507 are distributed in a rectangular shape inside the oil storage chamber 505, and transverse connecting rods 508 are arranged at both ends of the heat-conducting copper rods 507. The two groups of heat-conducting copper rods 507 are fixedly connected by the transverse connecting rods 508. Multiple groups of heat exchange fins 509 are installed on the outside of the heat-conducting copper rods 507, and the multiple groups of heat exchange fins 509 are linearly distributed on the outside of the heat-conducting copper rods 507. The evaporation box 501 A condensation outlet pipe 510 is connected through the top, wherein the use of the water inlet valve 504 is convenient for the user to control the discharge of the water inlet flange pipe 503, wherein the oil storage chamber 505 can store the oil body, because the boiling point of oil is higher than that of water, thereby improving the heating evaporation effect, wherein the multiple groups of heat-conducting copper rods 507 are connected by a transverse connecting rod 508, and the use of multiple groups of heat exchange fins 509 greatly improves the transfer effect of the heat energy generated by the electric heating equipment 506, wherein the use of the condensation outlet pipe 510 can be connected to the condensation unit, so that the water vapor generated by evaporation can be condensed and recycled.

[0045] The reduction mechanism 5 also includes a cross connecting plate 519 arranged on the top of the annular scraper blade 518, and the annular scraper blade 518 is fixedly connected to the inner wall output rod 517 through the cross connecting plate 519. The top of the inner wall scraper cylinder 516 is threadedly connected with multiple groups of assembly bolts 520, and the multiple groups of assembly bolts 520 are distributed in a rectangular shape on the top of the inner wall scraper cylinder 516. The use of the cross connecting plate 519 greatly improves the structural stability of the annular scraper blade 518, and prevents it from tilting and falling off to affect subsequent scraping and use. The use of multiple groups of assembly bolts 520 can be threadedly connected to the threaded hole at the top of the evaporator box 501, thereby facilitating the user to install, inspect and disassemble the inner wall scraper cylinder 516.

[0046] The reduction mechanism 5 also includes a material guiding inclined tube 524 arranged on one side of the evaporation box 501, and a sealing material blocking plug plate 525 is movably inserted on one side of the material guiding inclined tube 524, and a non-slip pull ring 526 is fixedly connected to one side of the sealing material blocking plug plate 525, and two groups of fastening bolts 527 are threadedly connected to one side of the sealing material blocking plug plate 525, and the two groups of fastening bolts 527 are symmetrically distributed on one side of the sealing material blocking plug plate 525. Two groups of fastening threaded holes 528 are opened on one side of the material guiding inclined tube 524, and the two groups of fastening threaded holes 528 are symmetrically distributed on one side of the material guiding inclined tube 524, wherein the oblique setting of the material guiding inclined tube 524 facilitates the reduced raw materials to enter the grinding unit below, wherein the use of the sealing material blocking plug plate 525 can be achieved by threaded connection of the two groups of fastening bolts 527 and the two groups of fastening threaded holes 528 to achieve installation and block the feeding end of the material guiding inclined tube 524, so as to facilitate the subsequent user to control the discharge of the reduced sodium chloride raw materials.

[0047] The reduction mechanism 5 also includes two groups of support plates 529 arranged on the top of the pump assembly seat 2, and the two groups of support plates 529 are symmetrically distributed on the top of the pump assembly seat 2. One side of the water inlet flange pipe 503 is threadedly connected with multiple groups of flange bolts 530, and the multiple groups of flange bolts 530 are annularly distributed on one side of the water inlet flange pipe 503. The connecting end of the water inlet flange pipe 503 is internally movably connected with a driving turbine fan 531, and the top of the driving turbine fan 531 is fixedly connected with a rotating shaft 532. The outer wall of the water inlet flange pipe 503 is fixedly connected with a rotating bearing 533, and the internal movably connected with multiple groups of bearing balls 534 of the rotating bearing 533, and the multiple groups of bearing balls 534 are annularly distributed inside the rotating bearing 533. The top of the rotating bearing 533 is fixedly connected with A limit base 535, a movable block 536 is fixedly connected to the top of the rotating shaft 532, and a rotating pointer 537 is fixedly connected to the outer wall of the movable block 536. The use of two sets of support plates 529 can provide stable support for the bottom ends of the outlet flange pipe 303 and the inlet flange pipe 503. The use of multiple sets of flange bolts 530 facilitates the connection between the outlet flange pipe 303 and the inlet flange pipe 503 and the water inlet and outlet ends of the pump. The use of the driving turbine fan 531 can rotate on the rotating bearing 533 when salt water flows in the pipeline, thereby driving the movable block 536 at the top of the rotating shaft 532 to rotate in the limit base 535, so that the user can know whether the pump is completely blocked by the rotation of the rotating pointer 537 on the movable block 536.

[0048] The grinding mechanism 6 includes a grinding box 601 disposed at the bottom of the evaporation box 501, a grinding jar 602 is installed inside the grinding box 601, a support base 603 is provided at the bottom of the grinding jar 602, a feed trough 604 is provided on the outer wall of the grinding jar 602, a grinding drum 605 is movably connected inside the grinding jar 602, a plurality of groups of grinding rollers 606 are installed on the outer side of the grinding drum 605, and the plurality of groups of grinding rollers 606 are distributed in an annular manner on the outer side of the grinding drum 605, two groups of structural shafts 607 are fixedly connected at both ends of the grinding drum 605, the two groups of structural shafts 607 are symmetrically distributed at both ends of the grinding drum 605, and a support bearing 606 is installed on the outer side of the structural shaft 607. 08. A grinding motor 609 is installed on one side of the grinding box 601. One end of the output shaft of the grinding motor 609 is threadedly connected with multiple groups of connecting bolts 610. The multiple groups of connecting bolts 610 are distributed in a ring shape at one end of the output shaft of the grinding motor 609. A support base 603 is provided to provide support for the grinding tank 602. Multiple groups of grinding rollers 606 on the grinding drum 605 can rotate on the support bearing 608 when the grinding motor 609 is powered on, so that the reduced sodium chloride can be ground and crushed, which is convenient for subsequent recycling. The multiple groups of connecting bolts 610 can be threadedly connected with the threaded holes on the structural shaft 607, thereby ensuring the stable transmission of power.

[0049] The grinding mechanism 6 also includes a screening plate 611 arranged at the bottom of the grinding tank 602. A storage pipe 612 is connected to the bottom of the grinding box 601. A collecting drawer 613 is movably connected to one side of the storage pipe 612. The sieve holes on the screening plate 611 can screen the ground sodium chloride particles to avoid the discharge of large sodium chloride particles that are inconvenient for subsequent testing. The use of the collecting drawer 613 in the storage pipe 612 facilitates the access to the raw materials after grinding and screening, further facilitates the use of the ground raw materials, and improves the production utilization efficiency.

[0050] Working principle: before the test, the user connects the condensation outlet pipe 510 to the condensation unit, connects the drainage valve pipe 302 to the water source pipe, and then opens the opening and closing bucket cover 403 through the opening and closing rotating shaft 404 and puts a certain amount of fine sodium chloride particles into the feeding hopper 401, and then energizes the feeding motor 408. When the feeding motor 408 is powered on and started, it will drive the active bevel gear 409 to rotate through the output shaft, and the driven bevel gear 410 at the bottom of the guide shaft 405 is engaged with the active bevel gear 409, so that the spiral blade 406 on the guide shaft 405 can be driven to rotate in the bearing The stirring motor 305 rotates on the heavy bearing rod 407, so that the sodium chloride particles can be introduced into the preparation tank 301 from the feed pipe 402, and then a certain amount of water is injected into the preparation tank 301 through the drainage valve pipe 302, so as to complete the loading of the device; then the user energizes the stirring motor 305, and when the stirring motor 305 is powered on, it will drive the multiple groups of stirring blades 307 to rotate on the waterproof bearing 308 through the stirring shaft 306, so that the water and the sodium chloride particles can be fully integrated, and the sodium chloride particles will be dissolved in the water to form salt water. At this time, the user can detect the salt water through the density detector 309. Whether the water is saturated, if it is not saturated, it is necessary to continue to add sodium chloride raw materials. When the salt water is saturated, the user injects a large volume of sodium chloride particles into the preparation tank 301 and stirs it with the salt water to make it evenly distributed. Because the sodium chloride particles cannot continue to dissolve after the salt water is saturated, a suspension is formed and the anti-blocking test requirements can be met, thereby completing the preparation of the device; then the user installs the pump to be tested on the pump assembly seat 2, and connects the water inlet end of the pump to the water outlet flange pipe 303 through the flange bolts 530, and the water outlet end is connected to the water inlet flange pipe 503, and then opens the water outlet valve 30 4 and the water inlet valve 504 and energize the pump. When the pump is powered on, the suspension prepared in the preparation tank 301 will be pumped into the evaporation box 501 through the water outlet flange pipe 303 through the water inlet flange pipe 503. At this time, the flow of the liquid in the water inlet flange pipe 503 will drive the turbine fan 531 to rotate on the rotating bearing 533, and the rotating pointer 537 on the movable block 536 at the top of the rotating shaft 532 will rotate on the limit base 535, so that the clogging condition of the pump can be known according to the rotation condition of the pointer and the clogging detection device, thereby realizing the clogging test of the device;When the pump is completely blocked, the test is completed. The user can know the anti-blocking ability of the pump according to the specific gravity of the discharged liquid and the remaining liquid and the detection result of the blockage detection device. When the pump is completely blocked, the user injects an appropriate amount of water into the evaporation box 501 and energizes the two sets of electric heating devices 506. When the two sets of electric heating devices 506 are energized, their internal resistors convert electrical energy into thermal energy and heat the oil in the oil storage cavity 505 of the heating outer box 502 through multiple sets of connected heat-conducting copper rods 507, so that the liquid in the evaporation box 501 can be fully heated. After heating, the sodium chloride particles in the liquid are The particles will continue to dissolve, thus not blocking the pumping assembly. Then the user energizes the pump 511, which will pump out hot water through the pumping pipe, and distribute the hot water into the outlet flange pipe 303 and the inlet flange pipe 503 through the outlet pipe 512 and the first water injection pipe 514 and the second water injection pipe 515, so that the heat contacts the pump, and the sodium chloride particles blocked in the pump will dissolve in the water after being heated, thereby clearing the blockage of the device; and the water in the evaporation box 501 will continue to be heated and will be vaporized and enter the condensing unit through the condensation outlet pipe 510 for condensation, while the sodium chloride in the brine will stay in the evaporation box 501 to be recrystallized, and then the user will energize the inner wall scraper cylinder 516 and the bottom wall scraper cylinder 521. When the inner wall scraper cylinder 516 and the bottom wall scraper cylinder 521 are energized and started, the inner wall output rod 517 and the bottom wall output rod 522 will push the annular scraper blade 518 and the strip scraper blade 523 to move back and forth along the inner wall of the evaporation box 501, and the crystals adhering to the inner wall will be scraped off, thereby realizing the evaporation reduction of the device; then the user will unscrew the fastening bolts 527 on the sealing baffle plate 525 and remove the guide The material is pulled out from the inclined tube 524, and the crystals are pushed by the strip scraper blade 523 and pass through the guide inclined tube 524 to enter the grinding tank 602. Then, the grinding motor 609 is powered on. When the grinding motor 609 is powered on and started, it drives the multiple grinding rollers 606 on the grinding drum 605 to rotate on the support bearing 608 through the output shaft, so that the crystals can be ground and crushed. After being screened by the screening plate 611, the ground crystals fall into the collection drawer 613 of the storage tube 612 for standby use, which is convenient for subsequent recycling, thereby realizing the resource recycling test function of the device. ;

[0051] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A test bench for a water pump, comprising a support frame (1), characterized in that: A pump assembly seat (2) is installed on the top of the support frame (1), a salt water preparation mechanism (3) is arranged on the top of the support frame (1), a feeding mechanism (4) is arranged on the top of the salt water preparation mechanism (3), a reduction mechanism (5) is arranged on one side of the support frame (1), and a grinding mechanism (6) is arranged at the bottom of the reduction mechanism (5); The salt water preparation mechanism (3) comprises a preparation tank (301) arranged on the top of the support frame (1), a water outlet flange pipe (303) is connected through the outside of the preparation tank (301), a stirring motor (305) is installed on the top of the preparation tank (301), and a density detector (309) is connected through the outer wall of the preparation tank (301); The reduction mechanism (5) comprises an evaporation box (501) arranged on one side of the support frame (1); a heating outer box (502) is arranged on the outer side of the evaporation box (501); a water inlet flange pipe (503) is connected through the top of the evaporation box (501); two groups of electric heating devices (506) are installed on one side of the heating outer box (502); the two groups of electric heating devices (506) are symmetrically distributed on one side of the heating outer box (502); a water pump (511) is installed on the top of the evaporation box (501); a water outlet pipe (512) is installed on one side of the water pump (511); a three-way pipe joint (513) is provided at one end of the water outlet pipe (512); a first water injection pipe (514) is installed on one side of the three-way pipe joint (513); and a second water injection pipe (515) is installed on the other side of the three-way pipe joint (513); The reduction mechanism (5) further comprises an inner wall scraper cylinder (516) disposed at the top of the evaporation box (501), an inner wall output rod (517) being disposed at the bottom of the inner wall scraper cylinder (516), an annular scraper blade (518) being movably connected inside the evaporation box (501), a bottom wall scraper cylinder (521) being mounted on one side of the evaporation box (501), a bottom wall output rod (522) being mounted on one side of the bottom wall scraper cylinder (521), a strip-shaped scraper blade (523) being fixedly connected to one end of the bottom wall output rod (522), and two groups of support plates (529) being disposed on the top of the pump assembly seat (2), the two groups of support plates (529) being symmetrically distributed on the top of the pump assembly seat (2), and a plurality of groups of flange screws being threadedly connected to one side of the water inlet flange pipe (503). bolts (530), multiple groups of flange bolts (530) are distributed in an annular manner on one side of the water inlet flange pipe (503), a driving turbine fan (531) is movably connected inside the connection end of the water inlet flange pipe (503), a rotating shaft (532) is fixedly connected to the top of the driving turbine fan (531), a rotating bearing (533) is fixedly connected to the outer wall of the water inlet flange pipe (503), multiple groups of bearing balls (534) are movably connected inside the rotating bearing (533), multiple groups of bearing balls (534) are distributed in an annular manner inside the rotating bearing (533), the top of the rotating bearing (533) is fixedly connected to a limiting base (535), the top of the rotating shaft (532) is fixedly connected to a movable block (536), and the outer wall of the movable block (536) is fixedly connected to a rotating pointer (537).

2. A test bench for a water pump according to claim 1, characterized in that: The salt water preparation mechanism (3) further comprises a drainage valve pipe (302) penetrating and connected to the outside of the preparation tank (301); a water outlet valve (304) is installed on the outside of the water outlet flange pipe (303); a stirring shaft (306) is installed at the bottom of the stirring motor (305); a plurality of groups of stirring blades (307) are fixedly connected to the outside of the stirring shaft (306); the plurality of groups of stirring blades (307) are linearly distributed on the outside of the stirring shaft (306); and a waterproof bearing (308) is installed at the bottom of the stirring shaft (306).

3. A test bench for a water pump according to claim 1, characterized in that: The feeding mechanism (4) comprises a feeding hopper (401) arranged at the top of the preparation tank (301), a feeding pipe (402) is arranged at the bottom of the feeding hopper (401), an opening and closing hopper cover (403) is movably connected to the top of the feeding hopper (401), and an opening and closing rotating shaft (404) is installed on one side of the opening and closing hopper cover (403).

4. A test bench for a water pump according to claim 3, characterized in that: The feeding mechanism (4) further comprises a material guide shaft (405) arranged inside the feeding tube (402), the outer wall of the material guide shaft (405) being fixedly connected with a spiral blade (406), the inner wall of the opening and closing bucket cover (403) being fixedly connected with a load-bearing bearing rod (407), a feeding motor (408) being installed on the top of the preparation tank (301), one end of the output shaft of the feeding motor (408) being fixedly connected with a driving bevel gear (409), the bottom end of the opening and closing rotating shaft (404) being fixedly connected with a driven bevel gear (410), and the outer wall of the opening and closing rotating shaft (404) being fixedly connected with a conical protective cap (411).

5. A test bench for a water pump according to claim 1, characterized in that: The reduction mechanism (5) further comprises a water inlet valve (504) arranged on the outside of the water inlet flange pipe (503); an oil storage chamber (505) is arranged inside the heating outer box (502); a plurality of groups of heat-conducting copper rods (507) are arranged inside the oil storage chamber (505); the plurality of groups of heat-conducting copper rods (507) are distributed in a rectangular shape inside the oil storage chamber (505); transverse connecting rods (508) are arranged at both ends of the heat-conducting copper rods (507); two groups of the heat-conducting copper rods (507) are fixedly connected via the transverse connecting rods (508); a plurality of groups of heat-exchange fins (509) are installed on the outside of the heat-conducting copper rods (507); the plurality of groups of heat-exchange fins (509) are distributed linearly on the outside of the heat-conducting copper rods (507); and a condensation outlet pipe (510) is connected through the top of the evaporation box (501).

6. A test bench for a water pump according to claim 1, characterized in that: The reduction mechanism (5) further comprises a cross connecting plate (519) disposed on the top of the annular scraper blade (518), the annular scraper blade (518) being fixedly connected to the inner wall output rod (517) via the cross connecting plate (519), the top of the inner wall scraper cylinder (516) being threadedly connected with a plurality of groups of assembly bolts (520), the plurality of groups of assembly bolts (520) being distributed in a rectangular shape on the top of the inner wall scraper cylinder (516).

7. A test bench for a water pump according to claim 1, characterized in that: The reduction mechanism (5) further comprises a material guiding inclined tube (524) arranged on one side of the evaporation box (501); a sealing material blocking plug plate (525) is movably inserted on one side of the material guiding inclined tube (524); a non-slip pull ring (526) is fixedly connected to one side of the sealing material blocking plug plate (525); two groups of fastening bolts (527) are threadedly connected to one side of the sealing material blocking plug plate (525); the two groups of fastening bolts (527) are symmetrically distributed on one side of the sealing material blocking plug plate (525); two groups of fastening threaded holes (528) are opened on one side of the material guiding inclined tube (524); the two groups of fastening threaded holes (528) are symmetrically distributed on one side of the material guiding inclined tube (524).

8. A test bench for a water pump according to claim 1, characterized in that: The grinding mechanism (6) comprises a grinding box (601) arranged at the bottom of the evaporation box (501); a grinding jar (602) is installed inside the grinding box (601); a supporting base (603) is arranged at the bottom of the grinding jar (602); a feeding trough (604) is provided on the outer wall of the grinding jar (602); a grinding drum (605) is movably connected inside the grinding jar (602); a plurality of groups of grinding rollers (606) are installed on the outer side of the grinding drum (605); and the plurality of groups of grinding rollers (606) are arranged on the outer side of the grinding drum (605). The grinding roller (605) is arranged in an annular pattern on both sides, two groups of structural shafts (607) are fixedly connected at both ends of the grinding roller (605), and the two groups of structural shafts (607) are symmetrically distributed at both ends of the grinding roller (605). A support bearing (608) is installed on the outer side of the structural shaft (607). A grinding motor (609) is installed on one side of the grinding box (601), and one end of the output shaft of the grinding motor (609) is threadedly connected to a plurality of groups of connecting bolts (610), and the plurality of groups of connecting bolts (610) are arranged in an annular pattern on one end of the output shaft of the grinding motor (609).

9. A test bench for a water pump according to claim 8, characterized in that: The grinding mechanism (6) further comprises a screening plate (611) arranged at the bottom of the grinding tank (602); a material storage pipe (612) is connected through the bottom of the grinding box (601); and a collection drawer (613) is movably connected to one side of the material storage pipe (612).

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