A water pump impeller press-fitting device and its usage method

Abstract

The present invention discloses a water pump impeller pressing device and its usage method, including a workbench and a plurality of support rods fixed to the top thereof. A suspended plate is fixed to the top of the plurality of support rods. A plurality of threaded plates are fixed to the top of the suspended plate. A threaded ring is threadedly sleeved on the periphery of the plurality of threaded plates. A plurality of support plates are fixed to the top of the suspended plate. A threaded column is fixed to one side of the support plate. A sliding rod is fixed to one end of the threaded column. A rotating disk is threadedly sleeved on the threaded column. A rubber ring is arranged on one side of the rotating disk. In the present invention, the four sliding frames slide on the four insertion rods respectively. The moving directions of the four sliding frames are aligned with the center of the center plate, enabling the center plate to move only vertically up and down. Moreover, when the inclination angles of the four sliding frames change, the height of the center plate also changes, realizing that the center plate can only move vertically up and down, preventing the impeller and the center plate from shifting during the lifting process, and enabling the impeller to be accurately docked with the transmission shaft.

Description

Technical Field

[0001] The present invention relates to the technical field of impeller installation, and particularly relates to a water pump impeller press-fitting device and a using method thereof. Background Art

[0002] After the impeller is produced, it needs to be installed in the pump housing of the water pump. The rotating shaft of the motor extends into the pump housing, and the rotating shaft needs to be inserted into the installation hole in the middle of the impeller. A notch is provided on one side of the installation hole, and the notch is docked with the convex block of the rotating shaft so that the impeller and the impeller rotate synchronously. During installation, first, the impeller press-fitting device lifts the impeller, then places the pump housing directly below the impeller, and the impeller press-fitting device slowly turns the impeller so that the impeller is installed on the transmission shaft.

[0003] In the existing impeller press-fitting device, the impeller is lifted by a steel wire. The steel wire has moving flexibility and cannot position the center of the circle, and cannot position the position of the installation hole of the impeller, resulting in the notch of the installation hole not being able to accurately align with the convex block of the transmission shaft. It is necessary to frequently calibrate the position of the impeller to avoid damage when the notch of the installation hole is docked with the convex block of the transmission shaft, which is not convenient for the installation work of the impeller. Therefore, it is necessary to provide a water pump impeller press-fitting device and a using method thereof. Summary of the Invention

[0004] The purpose of the present invention is to solve the problem in the prior art that when the impeller is lifted, the center of the circle cannot be positioned, the position of the installation hole of the impeller cannot be positioned, resulting in the notch of the installation hole not being able to accurately align with the convex block of the transmission shaft, and it is necessary to frequently calibrate the position of the impeller to avoid damage when the notch of the installation hole is docked with the convex block of the transmission shaft, which is not convenient for the installation work of the impeller, so as to propose a water pump impeller press-fitting device and a using method thereof.

[0005] To achieve the above object, the present invention adopts the following technical solution: A water pump impeller press-fitting device and a using method thereof, including a workbench and a plurality of support rods fixed on its top. A suspension plate is fixed on the top of the plurality of support rods. A plurality of threaded plates are fixed on the top of the suspension plate. Threaded rings are threadedly sleeved on the peripheries of the plurality of threaded plates. A plurality of support plates are fixed on the top of the suspension plate. A threaded column is fixed on one side of the support plate. A sliding rod is fixed at one end of the threaded column. A rotating disk is threadedly sleeved on the threaded column. A rubber ring is arranged on one side of the rotating disk. A sliding frame is movably arranged on the sliding rod. A rotating ring is integrally formed at the bottom of the sliding frame. A pin rod movably penetrates through the middle of the sliding frame. Fixed rings are nested at both ends of the pin rod. A grasping rod is fixed at the bottom of the fixed ring. Grasping claws are fixed on the side of the bottom of the grasping rod. A central rod movably penetrates through the rotating ring. Clamping plates are nested at both ends of the central rod. A central plate is fixed at the bottom of the clamping plate.

[0006] Further preferably, a plurality of side rods are fixed on the outside of the threaded ring, a laser pen is fixed through the middle of the center plate, and four sliding frames, four threaded plates, four latch rods, four center rods, four sliding rods, and four threaded plates surround the periphery of the laser pen.

[0007] Further preferably, a sliding groove is provided in the middle of the sliding frame, and the sliding rod and the latch rod have the same diameter and are inserted into the sliding groove of the sliding frame.

[0008] Further preferably, the diameter of the sliding rod is smaller than the diameter of the threaded column, the two latch rods are respectively clamped on both sides of the sliding frame, and the two threaded columns are respectively clamped on both sides of the sliding frame.

[0009] Further preferably, the central plate is located directly below the suspended plate, the two clamping plates are respectively clamped on both sides of the sliding frame, and the two rubber rings clamp both sides of the sliding frame.

[0010] Further preferably, the edge of the rubber ring is arc-shaped, the inner edge of the top of the threaded ring is kept inclined, and the inner edge of the threaded ring is against the four sliding frames.

[0011] Further preferably, a plurality of grooves are provided on the periphery of the rotating disk, the inner diameter of the rubber ring is larger than the diameter of the threaded column, and four curved threaded plates are surrounded to form a threaded cylinder which is sleeved in the middle of the threaded ring.

[0012] Further preferably, the support plates are grouped into two, with a total of four groups surrounding the top of the suspended plate, and there are gaps between the four threaded plates, and the sliding frame is located in the gaps between the threaded plates.

[0013] Further preferably, four notches are opened in the suspended plate, and the four notches surround and are located directly below the threaded ring. The sliding frame passes through the notches of the suspended plate and remains tilted.

[0014] A method for using a water pump impeller press-fitting device, the method specifically comprising the following steps:

[0015] Step 1: Assemble the water pump motor, bearings, and pump casing together. Insert the drive shaft of the water pump motor through the bearings into the pump casing.

[0016] Step 2: Place the impeller on the workbench with the laser pointer pointing to the center of the impeller. Move the side lever to rotate the threaded ring and move it downward. Pull the center plate downward and separate the four gripping levers so that the gripping claws hook onto the edge of the impeller.

[0017] Step 3: Lift the center plate upwards, use multiple gripping claws to lift the impeller, place the pump casing and water pump motor on the workbench, and then move the side rods to rotate the threaded ring and move it upwards. The threaded ring presses against the four sliding frames to prevent the impeller and center plate from moving downwards.

[0018] Step 4: Place the water pump motor and the pump housing on the workbench 1, and align the laser with the center of the transmission shaft in the middle of the pump housing.

[0019] Step 5: Slowly turn the side rod to make the threaded ring rotate and move downward. The inclination angles of the four sliding frames change, and the center plate and the impeller slowly move downward. The impeller enters the pump housing, and the mounting hole in the middle of the impeller is sleeved on the transmission shaft. Finally, use bolts to fix the impeller on the transmission shaft.

[0020] The beneficial effects of the present invention are as follows: The pin rod passes through the chute in the middle of the sliding frame so that it can slide, and two rotating disks clamp one sliding frame to prevent the sliding frame from tilting during the sliding process. The four sliding frames slide in the same way, and the bottom plates of the four sliding frames are simultaneously connected to the center plate. The four sliding frames restrict each other's sliding directions and slide on the pin rod, causing the center plate to only move vertically up and down and always remain horizontal during the up and down movement, realizing the vertical up and down movement of the center plate, preventing the impeller and the center plate from shifting during the lifting process, and accurately docking the impeller with the transmission shaft; The grasping rod surrounds the periphery of the center plate, and the eight clamping rods simultaneously retract inward to lift the impeller, which can automatically position the center of the impeller, make the center of the impeller located directly below the center plate, and quickly install the impeller on the transmission shaft, making it very convenient to use. Description of the Drawings

[0021] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0022] Figure 2 It is a schematic diagram of the structure of the suspended plate of the present invention;

[0023] Figure 3 It is a schematic diagram of the structure of the threaded plate of the present invention;

[0024] Figure 4 It is a schematic diagram of the structure of the support plate of the present invention;

[0025] Figure 5 It is a schematic diagram of the structure of a part of the present invention;

[0026] Figure 6 It is a schematic diagram of the structure of the center plate of the present invention;

[0027] Figure 7 It is a schematic diagram of the structure of the sliding frame of the present invention.

[0028] In the figure: workbench 1, support rod 2, suspended plate 3, threaded plate 4, threaded ring 5, side rod 6, support plate 7, threaded column 8, sliding rod 9, rotating disk 10, rubber ring 11, sliding frame 12, rotating ring 13, pin rod 14, fixed ring 15, grasping rod 16, grasping claw 17, central rod 18, clamping plate 19, central plate 20, laser pointer 21. Embodiment

[0029] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments.

[0030] Refer to Figure 1-7 , a water pump impeller pressing device and its use method, including a workbench 1 and a plurality of support rods 2 fixed to the top thereof. A suspended plate 3 is fixed to the top of the plurality of support rods 2. A plurality of threaded plates 4 are fixed to the top of the suspended plate 3. A threaded ring 5 is threadedly sleeved on the periphery of the plurality of threaded plates 4. A plurality of support plates 7 are fixed to the top of the suspended plate 3. A threaded column 8 is fixed to one side of the support plate 7. A sliding rod 9 is fixed to one end of the threaded column 8. A rotating disk 10 is threadedly sleeved on the threaded column 8. A rubber ring 11 is provided on one side of the rotating disk 10. A sliding frame 12 is movably provided on the sliding rod 9. A rotating ring 13 is integrally formed at the bottom of the sliding frame 12. A pin rod 14 movably penetrates through the middle of the sliding frame 12. Fixed rings 15 are nested at both ends of the pin rod 14. A grasping rod 16 is fixed to the bottom of the fixed ring 15. A grasping claw 17 is fixed to the side of the bottom of the grasping rod 16. A central rod 18 movably penetrates through the rotating ring 13. Clamping plates 19 are nested at both ends of the central rod 18. A central plate 20 is fixed to the bottom of the clamping plate 19.

[0031] Preferably, a plurality of side rods 6 are fixed to the outer side of the threaded ring 5. A laser pointer 21 is fixedly penetrated through the middle of the central plate 20. Four sliding frames 12, four threaded plates 4, four pin rods 14, four central rods 18, four sliding rods 9, and four threaded plates 4 surround the periphery of the laser pointer 21. A sliding groove is provided in the middle of the sliding frame 12. The sliding rod 9 and the pin rod 14 have the same diameter and are inserted into the sliding groove of the sliding frame 12. The diameter of the sliding rod 9 is smaller than the diameter of the threaded column 8. The two pin rods 14 are respectively clamped on both sides of the sliding frame 12. The two threaded columns 8 are respectively clamped on both sides of the sliding frame 12;

[0032] During specific implementation, the four sliding frames 12 slide on the four plug pins 14 respectively. The moving directions of the four sliding frames 12 are aligned with the center of the central plate 20, enabling the central plate 20 to move only vertically up and down. Moreover, the inclination angles of the four sliding frames 12 change, causing the height of the central plate 20 to also change, realizing that the central plate 20 can only move vertically up and down, preventing the impeller and the central plate 20 from shifting during the lifting and lowering process, and enabling accurate docking of the impeller with the transmission shaft.

[0033] Preferably, the central plate 20 is located directly below the suspended plate 3. The two clamping plates 19 clamp on both sides of the sliding frame 12 respectively, and the two rubber rings 11 clamp on both sides of the sliding frame 12. The gripping rod 16 surrounds the periphery of the central plate 20, and the eight clamping rods 18 simultaneously move inward to lift the impeller, which can automatically position the center of the impeller, making the center of the impeller located directly below the central plate.

[0034] Preferably, the edge of the rubber ring 11 is arc-shaped, and the inner edge at the top of the threaded ring 5 is inclined. The inner edge of the threaded ring 5 abuts against the four sliding frames 12. The rotating disk 10 can rotate on the threaded column 8, making the side of the rubber ring 11 closely adhere to the sliding frame 12. The frictional force between the rubber ring 11 and the sliding frame 12 offsets the gravity of the impeller, causing the impeller and components such as the central plate 20 to move slowly downward. Moreover, the normal pressure of the rubber ring 11 on the sliding frame 12 is adjustable, thereby the frictional force between the sliding frame 12 and the rubber ring 11 can be adjusted, and the descending rate of the impeller can be changed.

[0035] Preferably, four notches are opened in the suspended plate 3, and the four notches surround directly below the threaded ring 5. The sliding frame 12 passes through the notches of the suspended plate 3 and remains inclined. Two support plates 7 are provided in a group, and there are four groups in total surrounding the top of the suspended plate 3. There are gaps between the four threaded plates 4, and the sliding frame 12 is located in the gaps of the threaded plates 4. Multiple grooves are provided on the periphery of the rotating disk 10. The inner diameter of the rubber ring 11 is larger than the diameter of the threaded column 8. The four threaded plates 4 with arcs surround to form a threaded barrel sleeved in the middle of the threaded ring 5, and the threaded ring 5 rotates on the periphery of the four threaded plates 4.

[0036] During specific implementation, the threaded ring 5 can move up and down through the thread. The threaded ring 5 can abut against the four sliding frames 12 to form a support point, and the sliding rod 9 abuts against the sliding frame 12 to form another support point. The two support points prevent the inclination angle of the sliding frame 12 from changing. One end of the four sliding frames 12 is connected to the central plate 20, causing the four sliding frames 12 to be unable to slide and change the inclination angle, resulting in the central plate 20 being unable to move up and down. The height of the central plate 20 can be positioned through the threaded ring 5.

[0037] A usage method of a water pump impeller pressing device, which specifically includes the following steps:

[0038] Step 1: Assemble the water pump motor, bearings, and pump casing together. Insert the drive shaft of the water pump motor through the bearings into the pump casing.

[0039] Step 2: Place the impeller on the workbench 1, with the laser pointer 21 locating the center of the impeller. Move the side rod 6 to rotate the threaded ring 5 and move it downward. Pull the center plate 20 downward and separate the four gripping rods 16, so that the gripping claws 17 are hooked on the edge of the impeller.

[0040] Turn on the laser pen 21 and let it emit laser light vertically downward on the workbench 1. The laser pen 21 passes through the middle of the impeller to determine whether the impeller is in the middle of the workbench 1. When the center plate 20 moves upward, the eight gripping rods 16 are synchronously retracted to locate the center of the impeller, and the gripping claws 17 hook the edge of the impeller. At this time, the center of the impeller is directly below the center plate 20.

[0041] Step 3: Lift the center plate 20 upwards, use the multiple gripping claws 17 to lift the impeller, place the pump casing and the water pump motor on the workbench 1, and then move the side rods 6 to rotate the threaded ring 5 and move it upwards. The threaded ring 5 presses against the four sliding frames 12 to prevent the impeller and the center plate 20 from moving downwards.

[0042] The threaded ring 5 abuts against the sides of the four sliding frames 12 to prevent the tilt angles of the four sliding frames 12 from changing. At the same time, the four sliding frames 12 cannot be extended or retracted, and the height of the center plate 20 can be positioned;

[0043] Step 4: Place the water pump motor and pump casing on workbench 1, and align the laser with the center of the drive shaft in the middle of the pump casing;

[0044] The laser passes through the mounting hole in the middle of the impeller, and then the pump housing is moved to adjust the position of the drive shaft so that the notch of the mounting hole aligns with the bump of the drive shaft;

[0045] Step 5. Slowly turn the side rod 6 to rotate the threaded ring 5 and move it downward. The inclination angle of the four sliding frames 12 changes. The center plate 20 and the impeller slowly move downward. Insert the impeller into the pump casing. Put the mounting hole in the middle of the impeller on the drive shaft. Finally, use bolts to fix the impeller on the drive shaft.

[0046] The threaded ring 5 moves downward and creates a moving gap with the sliding frame 12. The inclination angle of the sliding frame 12 changes, and the sliding frame 12 can slide on the sliding rod 9, causing the height of the center plate 20 to drop. The gravity of structures such as the impeller and the center plate 20 is offset by the friction between the sliding frame 12 and the rubber ring 11, causing the impeller to slowly move downward. The random sliding frame 12 is then pressed against the inner side of the sliding frame 12 again. Through two-step deceleration, the mounting hole of the impeller is accurately docked with the drive shaft.

[0047] The above are only the preferred specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution and inventive concept of the present invention, making equivalent substitutions or changes should be covered within the protection scope of the present invention.

Claims

1. A water pump impeller press-fitting device, comprising a workbench and a plurality of support rods fixed to the top thereof, and a suspension plate is fixed to the tops of the plurality of support rods, characterized in that: The top of the suspended plate is fixed with multiple threaded plates, and the outer threads of the multiple threaded plates are sleeved with threaded rings. The top of the suspended plate is fixed with multiple support plates, and a threaded column is fixed on one side of the support plate. A sliding rod is fixed on one end of the threaded column, and a rotating disk is threadedly sleeved on the threaded column. A rubber ring is provided on one side of the rotating disk. A sliding frame is movably provided on the sliding rod, and a rotating ring is integrally formed at the bottom of the sliding frame. A latch rod is movably passed through the middle of the sliding frame, and fixing rings are nested at both ends of the latch rod. A gripping rod is fixed to the bottom of the fixing ring, and a gripping claw is fixed to the side surface of the bottom of the gripping rod. A center rod is movably passed through the rotating ring, and clamping plates are nested at both ends of the center rod, and the bottom of the clamping plate is fixed with a center plate; the sliding frame, threaded plate, latch rod, center rod, and sliding rod are all provided with Four; multiple side rods are fixed on the outside of the threaded ring, and a laser pen is fixed through the middle of the center plate. Four sliding frames, four threaded plates, four latch rods, four center rods, and four sliding rods surround the periphery of the laser pen; a sliding groove is provided in the middle of the sliding frame, and the diameters of the sliding rod and the latch rod are kept consistent and inserted into the sliding groove of the sliding frame; the diameter of the sliding rod is smaller than the diameter of the threaded column, and the two latch rods are respectively clamped on both sides of the sliding frame, and the two threaded columns are respectively clamped on both sides of the sliding frame; the center plate is located directly below the suspended plate, and the two clamping plates are respectively clamped on both sides of the sliding frame, and the two rubber rings clamp both sides of the sliding frame: the edge of the rubber ring is arc-shaped, the inner edge of the top of the threaded ring remains inclined, and the inner edge of the threaded ring rests on the four sliding frames.

2. The water pump impeller press-fitting device according to claim 1, characterized in that, The outer periphery of the rotating disk is provided with a plurality of grooves. The inner diameter of the rubber ring is larger than the diameter of the threaded column. Four curved threaded plates are surrounded to form a threaded cylinder which is sleeved in the middle of the threaded ring.

3. The water pump impeller press-fitting device according to claim 1, characterized in that, The support plates are grouped into two, and there are four groups in total surrounding the top of the suspended plate. There are gaps between the four threaded plates, and the sliding frames are located in the gaps between the threaded plates.

4. The water pump impeller press-fitting device according to claim 3, characterized in that, The suspended plate is provided with four notches, which surround the bottom of the threaded ring. The sliding frame passes through the notches of the suspended plate and remains tilted.

5. A method of using a water pump impeller press-fitting device, applicable to the water pump impeller press-fitting device described in any one of claims 1-4, characterized in that, The method of use specifically includes the following steps: Step 1: Assemble the water pump motor, bearings, and pump casing together. Insert the drive shaft of the water pump motor through the bearings into the pump casing. Step 2: Place the impeller on the workbench with the laser pointer pointing to the center of the impeller. Move the side lever to rotate the threaded ring and move it downward. Pull the center plate downward and separate the four gripping levers so that the gripping claws hook onto the edge of the impeller. Step 3: Lift the center plate upwards, use multiple gripping claws to lift the impeller, place the pump casing and water pump motor on the workbench, and then move the side rods to rotate the threaded ring and move it upwards. The threaded ring presses against the four sliding frames to prevent the impeller and center plate from moving downwards. Step 4: Place the water pump motor and pump casing on the workbench, and align the laser with the center of the drive shaft in the middle of the pump casing; Step 5: Slowly turn the side rod to rotate the threaded ring and move downward. The inclination angles of the four sliding frames change, and the central plate and the impeller slowly move downward. Insert the impeller into the pump casing, and the mounting hole in the middle of the impeller is sleeved on the transmission shaft. Finally, use bolts to fix the impeller on the transmission shaft.

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