Large vertical water pump motor backrest wheel mounting tool

Abstract

The utility model discloses a large vertical water pump motor backrest wheel mounting tool which comprises a bottom plate, the top of the bottom plate is rotationally connected with a first gear, the top of the bottom plate is rotationally connected with a lead screw located on one side of the first gear, the lead screw is sleeved with a second gear, the second gear is fixedly connected with the lead screw, and the first gear is connected with the second gear in a meshed mode. When the first gear rotates, the second gear drives the lead screw to rotate. Belongs to the technical field of vertical water pumps. According to the large vertical water pump motor backrest wheel mounting tool, the end face of the top plate is attached to the end face of a backrest wheel, the motor is started to rotate forwards, the positioning block is driven to center the backrest wheel, the concentricity of the backrest wheel and a motor shaft is ensured, the backrest wheel is heated through oxygen cutting, and the backrest wheel is jacked up until the backrest wheel is mounted in place after being heated in place. Installation is simple, convenient and fast, the safety guarantee of workers is improved, and the blank in the prior art is filled.

Description

Technical Field

[0001] The utility model relates to the technical field of vertical water pumps, and more particularly to a tool for assembling a backrest wheel of a large vertical water pump motor. Background Art

[0002] It is more convenient to install the backrest wheel of the horizontal water pump motor. The backrest wheel can be hoisted on the top using a crane or hoist. The backrest wheel of the vertical water pump motor is at the bottom. For small water pumps, the backrest wheel can be installed by hand. For large vertical water pump motors:

[0003] First, because the backrest wheel itself is relatively heavy, personnel cannot lift the backrest wheel. They need to use a crane to hoist the motor, make a large support, then lay the backrest wheel flat, and slowly put the motor on it. Personnel need to drill to the bottom of the motor to fine-tune the backrest wheel, then heat the backrest wheel, and use the motor's own weight to press it down to put on the backrest wheel. This method has a major safety hazard.

[0004] The second is to place the motor horizontally and use a crane or lifting device to reinstall the backrest wheel. This is difficult to flip and can easily cause damage to the motor.

[0005] The third is to place the motor on the support, weld the hanging points around the inside, adjust the backrest wheel by using the hoist to pull it obliquely, then heat the backrest wheel, and after heating, push the backrest wheel up from the bottom with a jack. Due to the small internal space, the construction is more difficult, and the oblique pulling method of the hoist does not necessarily ensure that the end face of the backrest wheel is perpendicular to the motor shaft.

[0006] In order to increase construction convenience and avoid safety risks to personnel and equipment, a professional tool is urgently needed to realize the installation of large motor backrest wheels. Utility Model Content

[0007] The purpose of this utility model is to provide a large vertical water pump motor backrest wheel assembly tool to solve the problems raised in the above background technology:

[0008] The back wheels of some existing large vertical water pump motors pose a major safety hazard during installation, are difficult to install, and can easily damage the motor.

[0009] In order to achieve the above purpose, the present invention provides the following technical solutions:

[0010] A large vertical water pump motor backrest wheel assembly tool includes a base plate, the top of the base plate is rotatably connected to the first gear, the top of the base plate and one side of the first gear is rotatably connected to the screw rod, the outside of the screw rod is sleeved with a second gear, the second gear is fixedly connected to the screw rod, the first gear is meshed with the second gear, and when the first gear rotates, the screw rod is driven to rotate through the second gear, the outside of the screw rod and above the second gear is sleeved with a first sleeve, the first sleeve is threadedly connected to the screw rod, the top of the first sleeve is fixedly connected to the top plate, a centering mechanism is provided above the top plate, and a transmission mechanism is provided below the top plate, and a control switch is installed on the outside of the base plate to control the start and stop and forward and reverse rotation of the motor, and power the electrical equipment through AC power or an external battery.

[0011] The second gear is engaged with the first and second gears and the third gear is engaged with the first and second gears and the third gear is engaged with the first and second gears and the third gear is engaged with the first and second gears and the third gear is engaged with the first and second gears and the third gear is engaged with the first and second gears and the third gear is engaged with the first and second gears and the third gear is engaged with the first and second gears and the third gear is engaged with the first and second gears and the third gear is engaged with the first and second gears and the third gear is engaged with the

[0012] Preferably, the transmission mechanism includes a mounting frame, the mounting frame is fixedly connected to the base plate, the top of the mounting frame is fixedly connected to the motor, the output end of the motor is fixedly connected to the fourth gear, the fourth gear is meshed with the first gear, the bottom of the second rack is fixedly connected to a fixing rod, the outer sleeve of the fixing rod is provided with a second sleeve, the second sleeve is slidably connected to the fixing rod, the bottom of the second sleeve is fixedly connected to a connecting plate, the outer side of the connecting plate is fixedly connected to a movable plate, the interior of the movable plate is provided with a sliding groove, the interior of the sliding groove is slidably connected to a slider, and the slider is fixedly connected to the first gear. When the first gear rotates, the first gear drives the slider to perform a circular motion, so that the slider squeezes the inner wall of the sliding groove, thereby driving the movable plate and the connecting plate to move.

[0013] Preferably, the bottom of the top plate is fixedly connected to a third sleeve, the interior of the third sleeve is slidably connected to a sliding rod, the sliding rod is fixedly connected to the bottom plate, and two groups of sliding rods and third sleeves are provided. These two groups of sliding rods and third sleeves are symmetrically arranged with the screw rod and the first sleeve around the center of the first gear.

[0014] Preferably, the corresponding two side edges of the first rack and the third rack are provided with a first limiting groove, the interior of the first limiting groove is slidably connected to a first limiting plate, the first limiting plate is fixedly connected to the top plate, and the first rack and the third rack are limited by the first limiting plate and the first limiting groove.

[0015] Preferably, second limiting grooves are provided on the corresponding two side edges of the connecting plate, a second limiting plate is slidably connected inside the second limiting groove, the second limiting plate is fixedly connected to the bottom plate, and the connecting plate is limited by the second limiting plate and the second limiting groove.

[0016] Preferably, the movable plate and the slide groove are both arc-shaped structures. When the center of the movable plate coincides with the center of the first gear, the rotation of the first gear will not drive the slider to squeeze the inner wall of the slide groove.

[0017] Preferably, the top plate is an annular structure, and a circular hole is provided at the center of the top plate of the annular structure, which is adapted to fit the backrest wheel, making it convenient to place the backrest wheel.

[0018] Preferably, the outer wall of the slider fits with the inner wall of the slide groove, and the slider and the slide groove can fit tightly together without too large a gap. This is mainly to prevent shaking between the movable plate and the slider due to too large a gap, and ensure the stability of the positioning block.

[0019] Compared with the prior art, the beneficial effects of the present invention are:

[0020] 1) When using this large vertical water pump motor backrest wheel assembly tool, fit the end face of the top plate with the end face of the backrest wheel, start the motor to rotate forward, drive the positioning block to center the backrest wheel, ensure the concentricity of the backrest wheel and the motor shaft, use oxygen cutting to heat the backrest wheel, and after it is heated to the right position, lift the backrest wheel until the backrest wheel is assembled into place. It is safe and reliable to use, simple, convenient and quick to install, which improves the safety of workers and fills the gap in the existing technology.

[0021] 2) When this large vertical water pump motor backrest wheel installation tool is in use, initially, the center of the movable plate and the center of the first gear are in a staggered state. After the motor is started, the backrest wheel will be centered through the centering mechanism to ensure the concentricity of the backrest wheel and the motor shaft. As the motor continues to rotate, the center of the movable plate will coincide with the center of the first gear. At this time, the rotation of the first gear will not drive the slider to squeeze the inner wall of the slide groove, and the movable plate will not move, thereby lifting the backrest wheel after centering, making the entire operation process coherent and smooth, which is conducive to improving the installation efficiency of the backrest wheel. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0023] Figure 2 This is a schematic diagram of the structure of the motor of the present utility model;

[0024] Figure 3 This is a schematic structural diagram of the screw rod of the present utility model;

[0025] Figure 4 This is a structural diagram of the positioning block of the utility model;

[0026] Figure 5 It is a structural schematic diagram of the movable plate of the utility model;

[0027] Figure 6 This is a schematic structural diagram of the second rack of the present invention;

[0028] Figure 7 This is a schematic structural diagram of the first rack of the present invention.

[0029] Explanation of the numbers in the figure: 1. bottom plate; 2. first gear; 3. screw rod; 4. second gear; 5. first sleeve; 6. top plate; 7. centering mechanism; 701. first rack; 702. second rack; 703. third gear; 704. third rack; 705. positioning block; 8. transmission mechanism; 801. mounting bracket; 802. motor; 803. fourth gear; 804. fixing rod; 805. second sleeve; 806. connecting plate; 807. movable plate; 808. slide groove; 809. slider; 9. third sleeve; 10. slide rod; 11. first limiting groove; 12. first limiting plate; 13. second limiting groove; 14. second limiting plate. DETAILED DESCRIPTION

[0030] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0031] See also Figures 1 to 7 , a large-scale vertical water pump motor backrest wheel assembly tool, including a base plate 1, the top of the base plate 1 is rotatably connected to the first gear 2, the top of the base plate 1 and on one side of the first gear 2 is rotatably connected to the screw rod 3, the outside of the screw rod 3 is sleeved with a second gear 4, the second gear 4 is fixedly connected to the screw rod 3, the first gear 2 and the second gear 4 are meshed together, when the first gear 2 rotates, it will drive the screw rod 3 to rotate through the second gear 4, the outside of the screw rod 3 and above the second gear 4 is sleeved with a first sleeve 5, the first sleeve 5 is threadedly connected to the screw rod 3, the top of the first sleeve 5 is fixedly connected to the top of the top plate 6, a centering mechanism 7 is provided above the top plate 6, and a transmission mechanism 8 is provided below the top plate 6. A control switch is installed on the outside of the base plate 1 to control the start, stop and forward and reverse rotation of the motor 802, and the electrical equipment can be powered by AC power or an external battery.

[0032] Furthermore, the centering mechanism 7 includes a first rack 701, the first rack 701 is slidably connected to the top plate 6, the top of the first rack 701 is slidably connected to the second rack 702, the outside of the top plate 6 and the corresponding two side edges of the second rack 702 are rotatably connected to the third gear 703, the two third gears 703 are meshed with the second rack 702, the top of the second rack 702 is slidably connected to the third rack 704, one of the third gears 703 is meshed with the first rack 701, and the other third gear 703 is meshed with the third rack 704, the outside of the first rack 701, the second rack 702 and the third rack 704 The ends away from the third gear 703 are fixedly connected with a positioning block 705, and the first rack 701, the second rack 702 and the third rack 704 are distributed up and down, and the second rack 702 is located in the middle position between the first rack 701 and the third rack 704. When the second rack 702 moves, the second rack 702 will drive the third gear 703 to rotate, and the third gear 703 will drive the first rack 701 and the third rack 704 to move, and finally drive the three symmetrically distributed positioning blocks 705 to move at the same time, so that the three positioning blocks 705 approach or move away from each other. As the positioning blocks 705 slowly approach the back wheel, automatic centering of the back wheel is achieved.

[0033] Furthermore, the transmission mechanism 8 includes a mounting frame 801, which is fixedly connected to the base plate 1. The top of the mounting frame 801 is fixedly connected to a motor 802. The output end of the motor 802 is fixedly connected to a fourth gear 803. The fourth gear 803 is meshed with the first gear 2. The bottom of the second rack 702 is fixedly connected to a fixed rod 804. The outer surface of the fixed rod 804 is provided with a second sleeve 805. The second sleeve 805 is slidably connected to the fixed rod 804. The bottom of the second sleeve 805 is fixedly connected to a connecting plate 806. The outside of the connecting plate 806 is fixedly connected to the movable plate 807, and the inside of the movable plate 807 is provided with a slide groove 808. The inside of the slide groove 808 is slidably connected to the slider 809. The slider 809 is fixedly connected to the first gear 2. When the first gear 2 rotates, the first gear 2 will drive the slider 809 to move in a circular motion, so that the slider 809 squeezes the inner wall of the slide groove 808, thereby driving the movable plate 807 and the connecting plate 806 to move, and the connecting plate 806 then drives the second rack 702 to move through the fixed rod 804 and the second sleeve 805.

[0034] Furthermore, a third sleeve 9 is fixedly connected to the bottom of the top plate 6, and a sliding rod 10 is slidably connected inside the third sleeve 9. The sliding rod 10 is fixedly connected to the bottom plate 1, and two groups of sliding rods 10 and third sleeves 9 are provided. These two groups of sliding rods 10 and third sleeves 9 are symmetrically arranged with the screw rod 3 and the first sleeve 5 with the center of the first gear 2. The top plate 6 is limited by the third sleeve 9 and the sliding rod 10, and when the screw rod 3 rotates, the top plate 6 can be driven to move up and down through the first sleeve 5.

[0035] Furthermore, the corresponding two side edges of the first rack 701 and the third rack 704 are provided with a first limiting groove 11, and the first limiting plate 12 is slidably connected inside the first limiting groove 11. The first limiting plate 12 is fixedly connected to the top plate 6. The first rack 701 and the third rack 704 are limited by the first limiting plate 12 and the first limiting groove 11 to ensure the stability of the first rack 701 and the third rack 704 during movement.

[0036] Furthermore, second limiting grooves 13 are provided on the corresponding two side edges of the connecting plate 806, and a second limiting plate 14 is slidably connected inside the second limiting groove 13. The second limiting plate 14 is fixedly connected to the base plate 1, and the connecting plate 806 is limited by the second limiting plate 14 and the second limiting groove 13, so that the connecting plate 806 can move smoothly.

[0037] Furthermore, the movable plate 807 and the slide groove 808 are both arc-shaped structures. When the center of the movable plate 807 coincides with the center of the first gear 2, the rotation of the first gear 2 will not drive the slider 809 to squeeze the inner wall of the slide groove 808. At this time, the movable plate 807 does not move. In the initial state, the center of the movable plate 807 and the center of the first gear 2 are in a staggered state.

[0038] Furthermore, the top plate 6 is an annular structure, and a circular hole is provided at the center of the top plate 6 of the annular structure, which is compatible with the backrest wheel and is convenient for placing the backrest wheel.

[0039] Furthermore, the outer wall of the slider 809 fits with the inner wall of the slide groove 808, and the slider 809 and the slide groove 808 can fit tightly together without a large gap. This is mainly to prevent shaking between the movable plate 807 and the slider 809 due to a large gap, and ultimately ensure the stability of the positioning block 705.

[0040] The utility model uses the following steps: When using the large vertical water pump motor backrest wheel repair tool, fit the end face of the top plate 6 with the end face of the backrest wheel, start the motor 802 to rotate forward, the motor 802 drives the first gear 2 to rotate, the first gear 2 drives the slider 809 to do a circular motion, so that the slider 809 squeezes the inner wall of the slide groove 808, thereby driving the movable plate 807 and the connecting plate 806 to move in the direction close to the screw rod 3, and the connecting plate 806 drives the second rack 702 to move through the fixed rod 804 and the second sleeve 805. At this time, the second rack 702 drives the positioning block 705 to approach the backrest wheel, and at the same time, the second rack 702 drives the third gear 703 to rotate, and the third gear 703 drives the first rack 701 and the third rack 704 to move. At this time, the first rack 701 and the third rack 704 It will also bring the positioning block 705 closer to the back wheel, and finally the three positioning blocks 705 move at the same time until the positioning block 705 fits with the back wheel to achieve centering of the back wheel and ensure the concentricity of the back wheel and the motor shaft. At this time, the movable plate 807 moves to a position where its center coincides with the center of the first gear 2. After shutting down the motor 802, the back wheel is heated with oxygen cutting. After heating is in place, the motor 802 is started again to rotate forward. At this time, the first gear 2 mainly drives the screw rod 3 to rotate through the second gear 4, and the screw rod 3 drives the top plate 6 to move upward through the first sleeve 5, thereby lifting the back wheel until the back wheel is put back in place. Finally, the start motor 802 is controlled to reverse. The tool is safe and reliable to use and simple, convenient and quick to install, which improves the safety of the staff and fills the gap in the existing technology.

[0041] The above shows and describes the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are merely preferred examples of the present invention and are not intended to limit the present invention. Various changes and improvements may be made to the present invention without departing from the spirit and scope of the present invention, and such changes and improvements fall within the scope of the present invention. The scope of protection claimed in the present invention is defined by the appended claims and their equivalents.

Claims

1. A large vertical water pump motor backrest wheel assembly tool, comprising a base plate (1), characterized in that: The top of the bottom plate (1) is rotatably connected to a first gear (2); the top of the bottom plate (1) and located on one side of the first gear (2) is rotatably connected to a screw rod (3); a second gear (4) is sleeved on the outside of the screw rod (3); the second gear (4) is fixedly connected to the screw rod (3); the first gear (2) and the second gear (4) are meshingly connected; a first sleeve (5) is sleeved on the outside of the screw rod (3) and located above the second gear (4); the first sleeve (5) is threadedly connected to the screw rod (3); the top of the first sleeve (5) is fixedly connected to a top plate (6); a centering mechanism (7) is provided above the top plate (6); and a transmission mechanism (8) is provided below the top plate (6).

2. The large vertical water pump motor backrest wheel installation tool according to claim 1 is characterized by: The centering mechanism (7) comprises a first rack (701), the first rack (701) is slidably connected to the top plate (6), the top of the first rack (701) is slidably connected to the second rack (702), the outside of the top plate (6) and located on the corresponding two sides of the second rack (702) are rotatably connected to third gears (703), the two third gears (703) are meshed with the second rack (702), the top of the second rack (702) is slidably connected to the third rack (704), one of the third gears (703) is meshed with the first rack (701), and the other third gear (703) is meshed with the third rack (704), and the ends of the outside of the first rack (701), the second rack (702) and the third rack (704) away from the third gear (703) are fixedly connected to positioning blocks (705).

3. The large vertical water pump motor backrest wheel installation tool according to claim 2 is characterized by: The transmission mechanism (8) comprises a mounting frame (801), the mounting frame (801) is fixedly connected to the bottom plate (1), a motor (802) is fixedly connected to the top of the mounting frame (801), a fourth gear (803) is fixedly connected to the output end of the motor (802), the fourth gear (803) is meshingly connected to the first gear (2), a fixing rod (804) is fixedly connected to the bottom of the second rack (702), and an outer sleeve of the fixing rod (804) is provided. A second sleeve (805) is provided, wherein the second sleeve (805) is slidably connected to the fixed rod (804), a connecting plate (806) is fixedly connected to the bottom of the second sleeve (805), a movable plate (807) is fixedly connected to the outside of the connecting plate (806), a sliding groove (808) is provided inside the movable plate (807), a sliding block (809) is slidably connected inside the sliding groove (808), and the sliding block (809) is fixedly connected to the first gear (2).

4. The large vertical water pump motor backrest wheel installation tool according to claim 1 is characterized by: The bottom of the top plate (6) is fixedly connected to a third sleeve (9), the interior of the third sleeve (9) is slidably connected to a sliding rod (10), and the sliding rod (10) is fixedly connected to the bottom plate (1).

5. The large vertical water pump motor backrest wheel installation tool according to claim 2, characterized in that: The first rack (701) and the third rack (704) are provided with first limiting grooves (11) on their corresponding two side edges, the first limiting groove (11) is slidably connected with a first limiting plate (12) inside, and the first limiting plate (12) is fixedly connected to the top plate (6).

6. The large vertical water pump motor backrest wheel installation tool according to claim 3 is characterized by: The corresponding two side edges of the connecting plate (806) are each provided with a second limiting groove (13), the interior of the second limiting groove (13) is slidably connected to a second limiting plate (14), and the second limiting plate (14) is fixedly connected to the bottom plate (1).

7. The large vertical water pump motor backrest wheel installation tool according to claim 3 is characterized by: The movable plate (807) and the slide groove (808) are both arc-shaped structures.

8. The large vertical water pump motor backrest wheel installation tool according to claim 1, characterized in that: The top plate (6) is an annular structure.

9. The large vertical water pump motor backrest wheel installation tool according to claim 3, characterized in that: The outer wall of the sliding block (809) is in contact with the inner wall of the sliding groove (808).

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