A water pump blade run-out qualification detection device

Abstract

The utility model relates to water pump technical field especially a water pump vane jounce qualified detection device, including the support plate who sets up vertically and has the through -hole, the support plate first side rotationally connected with the support ring of axis horizontal setting, a plurality of positioning pins are fixedly connected to the support ring circumference side, the positioning pin axis horizontal setting and position with assembly hole correspond, a plurality of pressing plates are installed to the support plate first side, the pressing plate can produce the clamping force of the ear part to the second side direction. The device is through the rotation installation support ring and a plurality of positioning pins in the support plate first side, and after positioning with the positioning pin is completed, only need to rotate the support ring to make the ear part to be clamped in the inside of the pressing plate and carry out clamping or far from the pressing plate and carry out the dismounting, make pump main casing can realize the positioning installation quickly, avoided the cumbersome operation of frequent plug -in and plug -out positioning pin in traditional detection device.

Description

Technical Field

[0001] This utility model relates to the field of water pump technology, and in particular to a water pump blade runout qualification detection device. Background Technology

[0002] Before leaving the factory, the impeller runout of the water pump assembly must be tested to prevent products with quality defects from leaving the factory.

[0003] For pump assembly impeller testing, the product is usually fixed on the testing platform, and a dial indicator with a magnetic base is used. After the dial indicator is calibrated, the pulley is rotated and the dial indicator runout value is observed.

[0004] The applicant previously developed a device for detecting the blade runout value of a water pump assembly impeller, publication (announcement) number: CN105782070A. Although the device can detect the impeller of the water pump assembly, it requires frequent insertion and removal of positioning pins to fix the water pump housing each time it is used, which is quite troublesome for workers to operate. Utility Model Content

[0005] The purpose of this invention is to address the shortcomings of existing technologies, which, although capable of detecting the impeller of a water pump assembly, require frequent insertion and removal of locating pins to secure the pump housing each time, making operation cumbersome for workers. Therefore, this invention proposes a water pump impeller runout qualification detection device.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A water pump blade runout qualification detection device includes a vertically arranged support plate with a through hole. The support plate has a positioning pin on the first side that can position the pump main housing and a dial indicator on the second side that can detect the runout of the pump blade tip. The pump main housing has a plurality of ears on its periphery, and the ears have assembly holes for the positioning pin to be inserted.

[0008] The first side of the support plate is rotatably connected to a support ring with a horizontally arranged axis. Several positioning pins are fixed to the periphery of the support ring. The positioning pins have a horizontally arranged axis and their positions correspond to the assembly holes. Several pressure plates are installed on the first side of the support plate. The pressure plates can generate a clamping force on the ear pointing to the second side.

[0009] The pressure plate includes a horizontal plate portion assembled with a support plate, a vertical plate portion fixed to the end of the horizontal plate portion, a chamfer on one side of the vertical plate portion, the ear portion abutting the inner side of the vertical plate portion away from the support plate, and the end face of the pump main housing abutting the support ring.

[0010] The horizontal plate is slidably connected to the support plate, and the sliding direction is parallel to the axis of the support ring. A tension spring is connected between the vertical plate and the support plate.

[0011] And / or, a positioning block is fixed to the first side of the support plate, the positioning block being able to limit the rotation angle of the support ring.

[0012] A support frame is fixedly installed on the second side of the support plate, and the dial indicator is installed on the support frame.

[0013] The support frame is fixedly equipped with a rotary motor. The power output shaft of the rotary motor is coaxially arranged with the water pump blades. The power output shaft of the rotary motor is equipped with a support column that is rotatably connected to the support frame. The support column is slidably connected with a plug rod. A thrust spring is installed between the first end of the plug rod and the support column. A top plate is installed at the second end of the plug rod. During operation, the top plate coaxially abuts against the end face of the water pump blades.

[0014] The top plate has several limiting protrusions on the side near the end face of the water pump blade.

[0015] The present invention proposes a water pump blade runout qualification testing device, which has the following advantages: the device rotates and installs a support ring and multiple positioning pins on the first side of the support plate. After positioning with the positioning pins, it is only necessary to rotate the support ring to clamp the ear inside the pressure plate or remove it from the pressure plate, so that the pump main housing can be quickly positioned and installed, avoiding the cumbersome operation of frequently inserting and removing positioning pins in traditional testing devices. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the three-dimensional structure of the pump main casing;

[0017] Figure 2 This is a schematic diagram of the positioning support plate structure during the inspection of the pump main casing of this utility model. Figure 1 ;

[0018] Figure 3 This is a schematic diagram of the positioning support plate structure during the inspection of the pump main casing of this utility model. Figure 2 ;

[0019] Figure 4 This is a schematic diagram of the structure of the present invention. Figure 1 ;

[0020] Figure 5 This is a schematic diagram showing the positional relationship between the support ring and the positioning block of this utility model.

[0021] Figure 6 This is a schematic diagram of the structure of the present invention. Figure 2 ;

[0022] Figure 7This is a schematic diagram showing the relationship between the elastic structure of the pressure plate and the position of the ear part in this utility model.

[0023] In the diagram: 1. Pump main housing; 2. Ear; 3. Assembly hole; 4. Pump blade; 5. Pressure plate; 6. Horizontal plate; 7. Vertical plate; 8. Chamfer; 10. Support ring; 11. Positioning pin; 12. Support plate; 13. Through hole; 14. Top plate; 15. Insert rod; 16. Support column; 17. Rotary motor; 18. Dial indicator; 19. Support frame; 20. Tension spring; 21. Positioning block. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0025] Reference Figures 1-7 A water pump blade runout qualification detection device includes a vertically arranged support plate 12 with a through hole 13. The support plate 12 has a positioning pin 11 on the first side that can position the pump main housing 1, and a dial indicator 18 on the second side that can detect the runout of the pump blade 4. The pump main housing 1 has a plurality of ears 2 around its periphery, and the ears 2 have assembly holes 3 for the positioning pins 11 to be inserted. The support plate 12 is rotatably connected to a support ring 10 with a horizontal axis. The support ring 10 is fixed to a plurality of positioning pins 11 around its periphery. The positioning pins 11 have a horizontal axis and their positions correspond to the assembly holes 3. The support plate 12 is equipped with a plurality of pressure plates 5, which can generate a clamping force on the ears 2 pointing to the second side.

[0026] In use, the operator first aligns the assembly hole 3 of the pump main housing 1 with the corresponding positioning pin 11 on the support ring 10 and inserts it along the direction of the positioning pin 11, so that the pump main housing 1 can be accurately positioned in front of the support ring 10. After the pump main housing 1 is fully assembled, its end face abuts against the support ring 10, thereby limiting the axial position of the pump main housing 1. At the same time, the support ring 10 and the pump main housing 1 are rotated, so that the ear 2 on the periphery of the pump main housing 1 rotates to the inside of the pressure plate 5. The pressure plate 5 applies a clamping force to the second side, so that the ear 2 is stably pressed between the support ring 10 and the support plate 12, thereby achieving reliable fixation of the pump main housing 1. After installation, the pump blade 4 is located on the second side of the support plate 12, and the probe of the dial indicator 18 contacts the end of the pump blade 4. When the pump blade 4 is rotated, the dial indicator 18 can display the runout of the blade end in real time. The operator can judge whether the runout of the pump blade 4 is within the qualified range by reading the value.

[0027] This device rotatably mounts a support ring 10 and multiple positioning pins 11 on the first side of the support plate 12. After positioning with the positioning pins, simply rotating the support ring 10 allows the ear 2 to be clamped inside the pressure plate 5 or disassembled away from the pressure plate, enabling the pump main housing 1 to be quickly positioned and installed, avoiding the cumbersome operation of frequently inserting and removing positioning pins in traditional testing devices.

[0028] The pressure plate 5 includes a horizontal plate portion 6 assembled with the support plate 12. A vertical plate portion 7 is fixedly connected to the end of the horizontal plate portion 6. One side of the vertical plate portion 7 has a chamfer 8. The side of the ear portion 2 away from the support plate 12 abuts against the inner side of the vertical plate portion 7. The end face of the pump main housing 1 abuts against the support ring 10. The chamfer 8 on one side of the vertical plate portion 7 plays a guiding role in the initial stage of assembly, making it easier for the ear portion to cut into the inner side of the vertical plate portion.

[0029] refer to Figure 7 The horizontal plate 6 is slidably connected to the support plate 12, and the sliding direction is parallel to the axis of the support ring 10. A tension spring 20 is connected between the vertical plate 7 and the support plate 12. The ear is elastically clamped between the vertical plate 7 and the support ring 10 by the tension spring 20.

[0030] And / or, a positioning block 21 is fixedly connected to the first side of the support plate 12, and the positioning block 21 can limit the rotation angle of the support ring 10. The positioning block 21 fixed on the support plate 12 is used to limit the maximum rotation angle of the support ring 10 to prevent excessive rotation from causing assembly inconvenience or damage.

[0031] A support frame 19 is fixedly installed on the second side of the support plate 12, and a dial indicator 18 is installed on the support frame 19. For example, the dial indicator is locked to the support frame 19 by tightening bolts.

[0032] A rotary motor 17 is fixedly mounted on a support frame 19. The power output shaft of the rotary motor 17 is coaxially aligned with the pump blade 4. A support column 16, rotatably connected to the support frame 19, is mounted on the power output shaft of the rotary motor 17. A plug rod 15 is slidably connected to the support column 16. A thrust spring is installed between the first end of the plug rod 15 and the support column 16. A top plate 14 is installed on the second end of the plug rod 15. During operation, the top plate 14 coaxially abuts against the end face of the pump blade 4. After the pump main housing 1 is positioned and clamped, the rotary motor 17 starts. Its power output shaft remains coaxial with the pump blade 4, allowing it to rotate the pump blade 4 using friction. This eliminates the need for manual rotation of the pump blade 4 by the operator.

[0033] Specifically, a sliding rod 15 is internally connected to the support column 16. A thrust spring is provided between the first end of the rod 15 and the support column 16. When the top plate 14 abuts against the end face of the pump blade 4, the thrust spring generates an elastic effect, ensuring a stable and flexible contact between the top plate 14 and the pump blade 4. The center of the top plate 14 is coaxial with the center of the pump blade 4, so that when the motor rotates, the top plate 14 can drive the pump blade 4 to rotate synchronously through friction. During the rotation, the dial indicator 18 probe is always in contact with the end of the pump blade 4, displaying the runout of the blade end in real time, which is used to judge the balance accuracy of the pump blade 4 and whether the runout is qualified.

[0034] The top plate 14 has several limiting protrusions on the side near the end face of the pump blade 4, which increase the friction with the pump blade 4 through small protrusions.

[0035] This device detects the runout of the pump blades 4 through the coordinated action of components such as the support plate 12, support ring 10, positioning pin 11, pressure plate 5, rotary motor 17, and top plate 14. In use, the pump main housing 1 is fitted onto the positioning pin 11 through the assembly hole 3 and initially positioned against the support ring 10. Then, rotating the support ring 10 allows the ear portion 2 to enter the inner side of the pressure plate 5. Utilizing the elasticity of the vertical plate 7 and the tension spring 20, the ear portion 2 is stably clamped between the support ring 10 and the support plate 12, achieving rapid and stable fixation. During detection, the rotary motor 17 drives the top plate 14 to rotate. The top plate 14 makes flexible contact with the pump blades 4 through the thrust spring and, with the help of the friction of the limiting protrusion, drives the blades 4 to rotate. The dial indicator 18 measures the runout at the blade tip in real time, thus achieving automated detection.

[0036] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any technical solution, concept, or design obtained by those skilled in the art by making equivalent substitutions or changes based on the technical solution and utility model concept disclosed in the present utility model should be included within the protection scope of the present utility model.

Claims

1. A water pump blade runout qualification detection device, comprising a vertically arranged support plate (12) with a through hole (13), wherein the support plate (12) has a positioning pin (11) on the first side for positioning the pump main housing (1) and a dial indicator (18) on the second side for detecting the runout of the end of the water pump blade (4), wherein the pump main housing (1) has a plurality of ears (2) on its periphery, and the ears (2) have an assembly hole (3) for the positioning pin (11) to be inserted; characterized in that The first side of the support plate (12) is rotatably connected to a support ring (10) with its axis horizontally arranged. Several positioning pins (11) are fixed around the support ring (10). The positioning pins (11) have their axes horizontally arranged and their positions correspond to the assembly holes (3). Several pressure plates (5) are installed on the first side of the support plate (12). The pressure plates (5) can generate a clamping force on the ear (2) pointing to the second side.

2. The water pump blade run-out qualification detection device according to claim 1, characterized in that, The pressure plate (5) includes a horizontal plate portion (6) assembled with the support plate (12), and a vertical plate portion (7) is fixedly connected to the end of the horizontal plate portion (6). One side of the vertical plate portion (7) has a chamfer (8). The side of the ear portion (2) away from the support plate (12) abuts against the inner side of the vertical plate portion (7), and the end face of the pump main housing (1) abuts against the support ring (10).

3. The water pump blade run-out qualification detection device of claim 2, wherein, The horizontal plate (6) is slidably connected to the support plate (12) and the sliding direction is parallel to the axis of the support ring (10). A tension spring (20) is connected between the vertical plate (7) and the support plate (12). And / or, a positioning block (21) is fixedly connected to the first side of the support plate (12), the positioning block (21) being able to limit the rotation angle of the support ring (10).

4. The water pump blade run-out qualification detection device according to any one of claims 1-3, characterized in that, A support frame (19) is fixedly installed on the second side of the support plate (12), and the dial indicator (18) is installed on the support frame (19).

5. The water pump blade run-out qualification detection device of claim 4, wherein, The support frame (19) is fixedly equipped with a rotary motor (17). The power output shaft of the rotary motor (17) is coaxially arranged with the water pump blade (4). The power output shaft of the rotary motor (17) is equipped with a support column (16) that is rotatably connected to the support frame (19). The support column (16) is slidably connected with a plug rod (15). A thrust spring is installed between the first end of the plug rod (15) and the support column (16). A top plate (14) is installed at the second end of the plug rod (15). During operation, the top plate (14) coaxially abuts against the end face of the water pump blade (4).

6. The water pump blade run-out qualification detection device of claim 5, wherein, The top plate (14) has several limiting protrusions on the side near the end face of the pump blade (4).

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