A water pump testing fixture and apparatus

Abstract

The utility model relates to water pump test technical field, concretely relates to a water pump test fixture and equipment, including jig bottom plate, placing seat, vibration test mechanism, water supply mechanism and drainage mechanism, the jig bottom plate front end is equipped with the placing seat, opens the cavity of placing on the placing seat, vibration test mechanism is located placing seat side portion, water supply mechanism and drainage mechanism are side by side and are located on the jig bottom plate rear end, the butt joint end of water supply mechanism and drainage mechanism all has the elastic seal ware for sealing connection the water inlet, drain outlet of the water pump under test through mounting plate connection, set up the elastic seal ware on the butt joint end of water supply / drainage mechanism, when vibration test, through water supply / drainage mechanism and the elastic seal ware cooperation, make the water inlet of water pump under test always be in sealed connection state, avoid the loosening due to the vibration of water pump under test, test water leakage situation appears, improved test efficiency and quality.

Description

Technical Field

[0001] This utility model relates to the field of water pump testing technology, specifically to a water pump testing fixture and equipment. Background Technology

[0002] Currently, water pumps are mechanical devices mainly used to transport liquids. Before being sold, water pumps must undergo performance tests in various aspects by the quality inspection department to ensure their service life and safety performance after leaving the factory. The performance parameters of a water pump include multiple items such as current, voltage, power, speed, waveform, flow rate, pressure, vibration test, and leakage test. However, the existing testing equipment used to test the various performance parameters of water pumps uses a test fixture that directly connects the water supply pipe to the water pump inlet and outlet during testing. The connection end is sealed with a sealing ring. In actual testing, the water supply pipe is relatively easy to gradually loosen due to vibration, causing the test liquid to leak and thus affecting the test. This has certain limitations in practical applications. Therefore, the applicant hereby proposes a water pump testing fixture and equipment to solve the above-mentioned technical problems. Utility Model Content

[0003] To address the shortcomings of existing technologies, this utility model provides a water pump testing fixture and equipment.

[0004] The technical solution of this utility model is as follows: This utility model provides a water pump testing fixture, including a fixture base plate, a placement seat, a vibration testing mechanism, a water supply mechanism, and a drainage mechanism; the fixture base plate is provided with a placement seat at the front end, the placement seat has a placement cavity, the vibration testing mechanism is located on the side of the placement seat, the water supply mechanism and the drainage mechanism are arranged side by side on the rear end of the fixture base plate, and the docking ends of the water supply mechanism and the drainage mechanism are connected by an elastic sealer for sealing the water inlet and outlet of the water pump under test through a mounting plate.

[0005] Furthermore, the elastic seal includes a connecting pipe, a mounting ring, a conical seal, equal-height screws, and a spring; the connecting pipe is disposed through the mounting plate, and a mounting ring is provided at the front end of the connecting pipe. A conical seal is provided inside the mounting ring. Multiple guide holes and threaded holes are respectively opened around the connecting pipe on the mounting plate and the mounting ring. Multiple equal-height screws are disposed between the mounting plate and the mounting ring around the connecting pipe. The nut ends of the multiple equal-height screws are all slidably engaged with the corresponding guide holes, and the screw ends of the multiple equal-height screws are all threadedly connected to the corresponding threaded holes.

[0006] Furthermore, the water supply mechanism includes a mounting bracket, a slide rail, a front slider, a rear slider, a pressure sensor, and a sliding drive component; the mounting bracket is longitudinally disposed on one side of the fixture base plate, the slide rail is disposed on the mounting bracket along its length direction, the front slider and the rear slider are slidably disposed on the front end and rear end of the slide rail, respectively, the pressure sensor is disposed between the front slider and the rear slider, the sliding drive component is disposed at the rear end of the mounting bracket and its output end is connected to the rear slider in a transmission connection, and the front slider is fixedly connected to the mounting plate.

[0007] Furthermore, the water supply mechanism also includes a tee pipe and a digital pressure sensor; the rear end of the connecting pipe is connected to the tee pipe, and the test end of the tee pipe is connected to the digital pressure sensor.

[0008] Furthermore, the vibration testing mechanism includes a bracket, a positioning drive, an extension plate, a guide rod assembly, a probe assembly, a fixing block, and a vibration sensor. The bracket is located on the side of the placement seat, the positioning drive is located on the bracket, and the output end of the positioning drive is connected to one end of the horizontally arranged extension plate. The other end of the extension plate is movably connected to the top of the vertically arranged guide rod assembly and the probe assembly. The bottom ends of the guide rod assembly and the probe assembly are movably connected to the top of the fixing block, and the fixing block is equipped with a vibration sensor.

[0009] Furthermore, it also includes a blocking assembly; the blocking assembly includes a fixed frame, a blocking drive component, a blocking arm, a lever seat, and a connecting plate; the fixed frame is disposed on one side of the placement seat, the blocking drive component is disposed on the fixed frame, the output end of the blocking drive component is rotatably connected to the blocking arm, the lever seat is disposed inside the output end of the blocking drive component, one end of the connecting plate is rotatably disposed on the lever seat, and the other end of the connecting plate is connected to the blocking arm.

[0010] Furthermore, it also includes a clamping assembly; the clamping assembly includes a clamping frame, a quick-release clamp, and a clamping rod; the clamping frame is mounted on the blocking assembly, the quick-release clamp is movably connected to the clamping frame, and the clamping end of the quick-release clamp is vertically provided with a clamping rod.

[0011] Furthermore, it also includes a first monitoring component located at the rear end of the vibration testing mechanism and a second monitoring component located at the front end of the barrier component; the first monitoring component includes a camera bracket located at the rear end of the vibration testing mechanism and a camera located on the camera bracket.

[0012] Furthermore, the placement base also has a baffle plate; the baffle plate is located at the front end of the placement base, the baffle plate has a U-shaped notch, and the inner side of the baffle plate has a rotation groove. This utility model provides a water pump testing device, including a body, a water chiller, a water supply / air blowing dual-purpose pipeline system, and the aforementioned testing fixture; the testing fixture is mounted on the body; the body and the water chiller are connected via the water supply / air blowing dual-purpose pipeline system, and the water supply port and water outlet of the water supply / air blowing dual-purpose pipeline system are respectively connected to the T-connector of the water supply mechanism and the drainage mechanism.

[0013] The beneficial effects achieved by this utility model are as follows: The present invention provides a water pump testing fixture and equipment, which is equipped with an elastic seal on the docking end of the water supply / drainage mechanism. During vibration testing, the water supply / drainage mechanism and the elastic seal work together to keep the inlet / outlet of the water pump under test in a sealed connection state, avoiding loosening and leakage of test water due to the vibration of the water pump under test, thereby improving testing efficiency and quality. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of the testing fixture in this utility model.

[0015] Figure 2 This is a schematic diagram of the test state of the test fixture in this utility model.

[0016] Figure 3 This is a three-dimensional schematic diagram of the water supply system.

[0017] Figure 4 This is a three-dimensional schematic diagram of the vibration testing mechanism.

[0018] Figure 5 This is a three-dimensional schematic diagram of the barrier component.

[0019] Figure 6 This is a three-dimensional schematic diagram of the first monitoring component.

[0020] Figure 7 This is a three-dimensional assembly diagram of the mounting base and the water pump to be tested.

[0021] Figure 8 This is a cross-sectional view of the structure of the elastic seal.

[0022] Figure 9 This is a 3D schematic diagram of the testing equipment.

[0023] Figure 10 This is a three-dimensional schematic diagram of the control system. Detailed Implementation

[0024] To facilitate understanding of this utility model by those skilled in the art, the specific embodiments of this utility model are clearly described below with reference to the accompanying drawings. Obviously, the specific embodiments described are merely preferred embodiments of this utility model, and not all embodiments.

[0025] like Figure 1-10 As shown, the present invention provides a water pump testing fixture for testing the performance parameters of a water pump under test. It includes a fixture base plate 1 for positioning and installation, a placement seat 2 for positioning and placing the water pump under test, a vibration testing mechanism 3 for testing the vibration frequency of the water pump under test, a water supply mechanism 4 for supplying test water to the inlet of the water pump under test, and a drainage mechanism 5 for discharging test water from the outlet of the water pump under test. The fixture base plate 1 has a placement seat 2 at its front end, and a placement cavity 21 for positioning and placing the water pump under test is provided on the placement seat 2. The vibration testing mechanism 3 is located on the side of the placement seat 2. The water supply mechanism 4 and the drainage mechanism 5 are arranged side-by-side on the rear end of the fixture base plate 1. The mating ends of the water supply mechanism 4 and the drainage mechanism 5 are each connected to an elastic seal 7 for sealing the inlet and outlet of the water pump under test via a mounting plate 6. The water supply mechanism 4 includes a mounting bracket 41, a slide rail 42, a front slider 43, a rear slider 44, a pressure sensor 45, and a sliding drive component 46. The mounting bracket 41 is longitudinally arranged on one side of the fixture base plate 1. The slide rail 42 is arranged on the mounting bracket 41 along its length. The front slider 43 and the rear slider 44 are slidably arranged on the front end and rear end of the slide rail 42, respectively. The pressure sensor 45 is arranged between the front slider 43 and the rear slider 44. The sliding drive component 46 is arranged at the rear end of the mounting bracket 41 and its output end is connected to the rear slider 44. The front slider 43 is fixedly connected to the mounting plate 6. In this embodiment, the sliding drive component 46 is preferably an adjustable stroke cylinder. The elastic seal 7 includes a connecting pipe 71, a mounting ring 72, a conical seal 73, equal-height screws 74, and a spring 75. The connecting pipe 71 is installed through the mounting plate 6, and the front end of the connecting pipe 71 is provided with a mounting ring 72. The conical seal 73 is detachably installed inside the mounting ring 72. The mounting plate 6 and the mounting ring 72 are respectively provided with a plurality of one-to-one corresponding guide holes 61 and threaded holes 721 around the connecting pipe 71. A plurality of equal-height screws 74 are arranged around the connecting pipe 71 between the mounting plate 6 and the mounting ring 72. The nut ends of the plurality of equal-height screws 74 are all slidably engaged with the corresponding guide holes 61, and the screw ends of the plurality of equal-height screws 74 are all threadedly connected with the corresponding threaded holes 721. During vibration testing, the spring, the conical seal, and the water supply / drainage mechanism work together to keep the inlet / outlet of the water pump under test in a sealed connection state at all times, avoiding loosening and leakage of test water due to vibration of the water pump under test.

[0026] The water supply mechanism 4 also includes a three-way pipe 47 and a digital pressure sensor 48; the rear end of the connecting pipe 71 is connected to the three-way pipe 47, and the test end of the three-way pipe 47 is connected to the digital pressure sensor 48; used to test the pressure data of the test water in the pipeline.

[0027] The drainage mechanism 5 and the water supply mechanism 4 have the same structure, and the similarities will not be repeated here. The difference is that the installation positions are different. The vibration testing mechanism 3 includes a bracket 31, a positioning drive 32, an extension plate 33, a guide rod assembly 34, a probe assembly 35, a fixing block 36, and a vibration sensor 37. The bracket 31 is mounted on the base plate 1 of the fixture and located on the side of the placement seat 2. The positioning drive 32 is mounted on the bracket 31. The output end of the positioning drive 32 is connected to one end of the horizontally arranged extension plate 33. The other end of the extension plate 33 is movably connected to the top of the vertically arranged guide rod assembly 34 and the top of the probe assembly 35. The bottom ends of the guide rod assembly 34 and the probe assembly 35 are movably connected to the top of the fixing block 36. The fixing block 36 is equipped with a vibration sensor 37. In this embodiment, the vibration sensor 36 is preferably a PCB accelerometer. In this embodiment, the positioning drive 32 is preferably a cylinder. The bottom end of the fixing block 36 directly abuts against the outer surface of the water pump under test. During the test, the vibration frequency of the water pump under test is captured and detected by the probe assembly 35 and the vibration sensor 37. By obtaining the magnitude of the vibration frequency of the water pump under test, qualified or unqualified products can be screened out.

[0028] The vibration sensor 37 includes a Y-axis sensor 371 and a Z-axis sensor 372; it detects and collects vibration test data in two directions.

[0029] The water pump testing fixture provided by this utility model further includes a blocking component 8 for counteracting the thrust of the drainage mechanism 5 and preventing the outlet of the water pump under test from breaking. The blocking component 8 includes a fixed frame 81, a blocking drive component 82, a blocking arm 83, a lever seat 84, and a connecting plate 85. The fixed frame 81 is located on the base plate 1 of the fixture and is situated on one side of the placement seat 2. The blocking drive component 82 is mounted on the fixed frame 81, and the output end of the blocking drive component 82 is rotatably connected to the blocking arm 83. The lever seat 84 is located on the blocking drive component. Inside the output end of component 82, a connecting plate 85 is rotatably mounted on the lever seat 84. The other end of the connecting plate 85 is connected to the blocking arm 83. In this embodiment, the blocking drive component 82 is preferably a cylinder. Through the cooperation of the lever seat 84, the connecting plate 85 and the blocking drive component 82, the blocking arm 83 abuts against the rear end of the outlet of the water pump under test, providing a backward force to the rear end of the outlet of the water pump under test to counteract the forward force generated when the drainage mechanism 5 is docked, thus preventing the outlet of the water pump under test from breaking or collapsing.

[0030] It also includes a clamping assembly 9 for assisting in positioning the outlet of the water pump under test to dock with the drainage mechanism 5; the clamping assembly 9 includes a clamping frame 91, a quick clamp 92 and a clamping rod 93; the clamping frame 91 is mounted on the blocking assembly 8, the quick clamp 92 is movably connected to the clamping frame 91, and the clamping end of the quick clamp 92 is vertically provided with a clamping rod 93; downward pressure is applied to the outlet of the water pump under test to adjust its position, so as to prevent the failure of docking with the drainage mechanism.

[0031] It also includes a first monitoring component 10 located at the rear end of the vibration testing mechanism 3 on the base plate 1 of the fixture and a second monitoring component 11 located at the front end of the barrier component 8 on the base plate 1 of the fixture; the first monitoring component 10 includes a camera bracket 101 located at the rear end of the vibration testing mechanism 3 on the base plate 1 of the fixture and a camera 102 located on the camera bracket 101; used to monitor whether there is any leakage of test water at the inlet and outlet.

[0032] The second monitoring component 11 and the first monitoring component 10 have the same structure, and the similarities will not be repeated here. The difference lies in their installation positions.

[0033] The placement seat 2 also has a baffle plate 22 for offsetting the impact force of the water supply mechanism docking; the baffle plate 22 is located on the base plate 1 of the fixture at the front end of the placement seat 2, the baffle plate 22 has a U-shaped notch for avoiding the protrusion of the water pump to be tested, and the inner side of the baffle plate 22 is provided with a rotating groove 22A for facilitating the rotation and positioning of the water pump to be tested. It also includes a control system for controlling the working status of the test fixture (vibration testing mechanism 3, water supply mechanism 4, drainage mechanism 5, barrier component 8, first monitoring component 10, and second monitoring component 11); the control system includes a power supply system 201 for power supply, an industrial control host 202 for control and issuing commands, a display 203 for displaying detailed test data, a button panel 204 for controlling various functions of the fixture, and a vibration spectrum analyzer 205 for analyzing the vibration frequency of the water pump under test; the industrial control host 202 is electrically connected to the power supply system 201, the display 203, the button panel 204, the vibration spectrum analyzer 205, and the test fixture (vibration testing mechanism 3, water supply mechanism 4, drainage mechanism 5, barrier component 8, first monitoring component 10, and second monitoring component 11); realizing the automated control function of the fixture.

[0034] This utility model also provides a water pump testing device, including a body 100, a water chiller 20 for providing test water, a water supply / air blowing dual-purpose pipeline system 30 for transporting test water and supplying it to a test fixture, and the aforementioned test fixture; the test fixture is mounted on the body 100; the body 100 and the water chiller 20 are connected by the water supply / air blowing dual-purpose pipeline system 30, and the water supply port 301 and the water outlet 302 of the water supply / air blowing dual-purpose pipeline system 30 are respectively connected to the T-connector 47 in the water supply mechanism 4 and the drainage mechanism 5. Specifically, the water supply mechanism 4 and the drainage mechanism 5 in the test fixture are respectively connected to the water supply port 301 and the water outlet 302 of the water supply / air blowing dual-purpose pipeline system 30 through the T-connector 47.

[0035] The specific structure of the test fixture is as described in the above embodiments. Since this water pump test equipment adopts all the technical solutions of all the above embodiments, it has at least all the beneficial effects brought about by the technical solutions of the above embodiments, which will not be elaborated here.

[0036] The embodiments of this utility model described above do not constitute a limitation on the scope of protection of this utility model. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the scope of protection of the claims of this utility model.

Claims

1. A water pump testing fixture, characterized in that: It includes a fixture base plate (1), a placement seat (2), a vibration testing mechanism (3), a water supply mechanism (4), and a drainage mechanism (5); the fixture base plate (1) is provided with a placement seat (2) at the front end, and a placement cavity (21) is opened on the placement seat (2). The vibration testing mechanism (3) is located on the side of the placement seat (2). The water supply mechanism (4) and the drainage mechanism (5) are arranged side by side on the rear end of the fixture base plate (1). The docking ends of the water supply mechanism (4) and the drainage mechanism (5) are connected to an elastic seal (7) for sealing the water inlet and outlet of the water pump under test through a mounting plate (6).

2. The water pump testing fixture according to claim 1, characterized in that: The elastic seal (7) includes a connecting pipe (71), a mounting ring (72), a conical seal (73), equal-height screws (74), and a spring (75). The connecting pipe (71) is installed through the mounting plate (6). The front end of the connecting pipe (71) is provided with a mounting ring (72). The mounting ring (72) is provided with a conical seal (73). The mounting plate (6) and the mounting ring (72) are respectively provided with a plurality of one-to-one corresponding guide holes (61) and threaded holes (721) around the connecting pipe (71). A plurality of equal-height screws (74) are arranged around the connecting pipe (71) between the mounting plate (6) and the mounting ring (72). The nut ends of the plurality of equal-height screws (74) are all slidably engaged with the corresponding guide holes (61), and the screw ends of the plurality of equal-height screws (74) are all threadedly connected to the corresponding threaded holes (721).

3. The water pump testing fixture according to claim 2, characterized in that: The water supply mechanism (4) includes a mounting bracket (41), a slide rail (42), a front slider (43), a rear slider (44), a pressure sensor (45), and a sliding drive (46). The mounting bracket (41) is longitudinally arranged on one side of the fixture base plate (1). The slide rail (42) is arranged on the mounting bracket (41) along its length direction. The front slider (43) and the rear slider (44) are slidably arranged on the front end and the rear end of the slide rail (42), respectively. The pressure sensor (45) is arranged between the front slider (43) and the rear slider (44). The sliding drive (46) is arranged at the rear end of the mounting bracket (41) and its output end is connected to the rear slider (44) in a transmission connection. The front slider (43) is fixedly connected to the mounting plate (6).

4. A water pump testing fixture according to claim 3, characterized in that: The water supply mechanism (4) also includes a three-way pipe (47) and a digital pressure sensor (48); the rear end of the connecting pipe (71) is connected to the three-way pipe (47), and the test end of the three-way pipe (47) is connected to the digital pressure sensor (48).

5. A water pump testing fixture according to claim 1, characterized in that: The vibration testing mechanism (3) includes a bracket (31), a positioning drive (32), an extension plate (33), a guide rod group (34), a probe group (35), a fixing block (36), and a vibration sensor (37). The bracket (31) is located on the side of the placement seat (2). The positioning drive (32) is located on the bracket (31). The output end of the positioning drive (32) is connected to one end of the horizontally arranged extension plate (33). The other end of the extension plate (33) is movably connected to the top of the vertically arranged guide rod group (34) and the top of the probe group (35). The bottom ends of the guide rod group (34) and the probe group (35) are movably connected to the top of the fixing block (36). The fixing block (36) is equipped with a vibration sensor (37).

6. A water pump testing fixture according to claim 1, characterized in that: It also includes a blocking assembly (8); the blocking assembly (8) includes a fixed frame (81), a blocking drive (82), a blocking arm (83), a lever seat (84), and a connecting plate (85); the fixed frame (81) is located on one side of the placement seat (2), the blocking drive (82) is located on the fixed frame (81), the output end of the blocking drive (82) is rotatably connected to the blocking arm (83), the lever seat (84) is located inside the output end of the blocking drive (82), one end of the connecting plate (85) is rotatably provided on the lever seat (84), and the other end of the connecting plate (85) is connected to the blocking arm (83).

7. A water pump testing fixture according to claim 1, characterized in that: It also includes a clamping assembly (9); the clamping assembly (9) includes a clamping frame (91), a quick clamp (92) and a clamping rod (93); the clamping frame (91) is mounted on the blocking assembly (8), the quick clamp (92) is movably connected to the clamping frame (91), and the clamping end of the quick clamp (92) is vertically provided with a clamping rod (93).

8. A water pump testing fixture according to claim 6, characterized in that: It also includes a first monitoring component (10) located at the rear end of the vibration testing mechanism (3) and a second monitoring component (11) located at the front end of the barrier component (8); the first monitoring component (10) includes a camera bracket (101) located at the rear end of the vibration testing mechanism (3) and a camera (102) located on the camera bracket (101).

9. A water pump testing fixture according to any one of claims 1-8, characterized in that: The placement seat (2) also has a barrier plate (22); the barrier plate (22) is located at the front end of the placement seat (2), the barrier plate (22) has a U-shaped notch, and the inner side of the barrier plate (22) is provided with a rotating groove (22A).

10. A water pump testing device, characterized in that: The device includes a body (100), a water chiller (20), a water supply / air blowing dual-purpose piping system (30), and a test fixture as described in any one of claims 1-9; the test fixture is mounted on the body (100); the body (100) and the water chiller (20) are connected by the water supply / air blowing dual-purpose piping system (30), and the water supply port (301) and the water outlet (302) of the water supply / air blowing dual-purpose piping system (30) are respectively connected to the T-connector (47) in the water supply mechanism (4) and the drainage mechanism (5).

Images