Pump shaft polishing device

Abstract

The invention relates to the field of pump production devices, in particular to a pump shaft polishing device which comprises a bottom plate, a sliding plate is arranged above the bottom plate, a sliding rod and a threaded rod are further arranged above the bottom plate, the threaded rod is driven by a positioning motor to rotate, the threaded rod penetrates through the sliding plate and is in threaded connection with the sliding plate, and the sliding rod penetrates through the sliding plate and is in sliding connection with the sliding plate. A rotating disc rotationally connected with the sliding plate is arranged on the sliding plate, the rotating disc is driven by a rotating motor to rotate, a positioning hole penetrating through the rotating disc is formed in the rotating disc, a plurality of fixing devices are evenly fixed to the position, on the peripheral side of the positioning hole, of the rotating disc, and each fixing device comprises a supporting shaft fixed to the rotating disc; the supporting shaft is provided with pressing rods rotationally connected with the supporting shaft, pressing blocks are fixed to the tail ends of the pressing rods, a plurality of threaded columns are further fixed to the rotating disc, a pressing plate is further arranged on one side of the rotating disc, and the threaded columns penetrate through the pressing plate and are in sliding connection with the pressing plate. The device can meet the polishing requirements of pump shafts with variable shaft diameters.

Description

Technical Field

[0001] The invention relates to the field of pump production devices, and in particular to a pump shaft grinding device. Background Art

[0002] A centrifugal pump is a pump that transports liquids by the centrifugal force generated by the rotation of the impeller. The basic structure of a centrifugal pump consists of six parts, namely the impeller, pump body, pump shaft, bearing, sealing ring, and stuffing box. The function of the pump shaft is to connect the motor with the coupling and transmit the torque of the motor to the impeller, so it is the main component for transmitting mechanical energy. Patent application number: CN202220642983.9 discloses a pump shaft smoothing device based on a centrifugal pump. The workbench comprises a workbench, the bottom of which is connected to a support frame, a sliding groove and a transmission groove are arranged inside the workbench, a sliding seat A and a sliding seat B are installed inside the sliding groove, one side of the sliding seat A is connected to a shaft seat, a centrifugal pump shaft is arranged inside the shaft seat, one side of the sliding seat B is connected to a coupling, a motor seat A is installed on one side of the sliding seat B, a rotating motor is installed on the top of the motor seat A, a fixing block is arranged on the outer wall of the rotating motor, a spring is arranged at one end of the sliding seat B, a transmission seat is installed inside the transmission groove, a mold box is installed on the top of the transmission seat, a mold is installed inside the mold box, when grinding work is performed, the rotating motor drives the centrifugal pump shaft to rotate through the coupling, and comprehensive and smooth grinding is performed, but since the pump shaft is generally not a regular cylindrical shape, some pump shafts have different shaft diameters on their surfaces, and this type of grinding device cannot meet the grinding needs of pump shafts with different shaft diameters on their surfaces because the distance between the mold and the pump shaft axis cannot be adjusted.

[0003] The present invention is proposed in view of the deficiencies in the prior art. Summary of the invention

[0004] The purpose of the present invention is to overcome the above-mentioned shortcomings of the prior art and provide a pump shaft grinding device.

[0005] The present invention can be implemented by the following technical solutions:

[0006] The invention discloses a pump shaft grinding device, comprising a base plate, a slide plate is arranged above the base plate, a sliding rod and a screw are also arranged above the base plate, the screw is driven to rotate by a positioning motor, the screw passes through the slide plate and is threadedly connected to the slide plate, the sliding rod passes through the slide plate and is slidably connected to the slide plate, a turntable rotatably connected to the slide plate is arranged on the slide plate, the turntable is driven to rotate by a rotating motor, a positioning hole penetrating the turntable is arranged on the turntable, a plurality of fixing devices are evenly fixed on the turntable on the periphery of the positioning hole, the fixing device comprises a supporting shaft fixed to the turntable, a pressure rod rotatably connected to the supporting shaft is arranged on the support shaft, a pressure block is fixed to the end of the pressure rod, a plurality of threaded columns are also fixed on the turntable, a pressure plate is also arranged on one side of the turntable, the threaded column passes through the pressure plate and is slidably connected to the pressure plate, a nut threadedly connected to the threaded column is arranged on the threaded column, and a positioning plate is also arranged above the base plate The camming wheel is annularly fixed to the bottom surface of the camming wheel, and the camming wheel is vertically arranged on the camming wheel hub, and the camming wheel is vertically arranged on the bottom surface of the camming wheel hub. Insert one end of the pump shaft to be polished into the positioning hole, push the pressure plate to move, the pressure plate squeezes each pressure rod, and the pressure block at the end of the pressure rod squeezes the pump shaft to fix the pump shaft, then turn the nut, the nut squeezes the pressure plate and fixes the pressure plate, after the pump shaft is fixed, drive the screw to rotate through the positioning motor, and the pump shaft moves toward the roller and the polishing belt, when the pump shaft passes between the roller and the polishing belt, due to the action of the positioning spring, the positioning spring pushes the positioning tube to realize the contact between the roller and the pump shaft surface, and the positioning shaft and the toothed disk on the limit shaft engage with each other, the polishing belt contacts the pump shaft surface, and the polishing belt is driven to move by the driving motor, and when the pump shaft moves, the turntable is driven to rotate by the rotating motor, and the pump shaft rotates with the turntable, so that the polishing belt can be in contact with the pump shaft surface to perform polishing operation on the pump shaft, and when the shaft diameter of the pump shaft surface changes, due to the action of the roller, the positioning spring and the toothed disk, the polishing belt is always close to the pump shaft surface, so that the pump shaft surface can be polished, and the pump shaft polishing requirements with changing shaft diameter can be met.

[0007] Preferably, a circular rack is fixed on the turntable, a gear is fixed on the output end of the rotating motor, and the gear is meshed with the rack.

[0008] Preferably, a vertical plate is fixed to the bottom plate, a limit block is arranged above the bottom plate, a plurality of limit rods are fixed to the limit block, the limit rods pass through the vertical plate and are slidably connected to the vertical plate, a limit spring is fixed between the limit block and the vertical plate, a tension shaft is fixed to the limit block, a tension roller is arranged on the tension shaft, and the grinding belt also passes around the tension roller. The limit spring pulls the tension roller to tighten the grinding belt, so that the surface of the pump shaft can be polished after the grinding belt is tightened.

[0009] Compared with the prior art, the present invention has the following advantages:

[0010] The device can realize grinding of the pump shaft surface and can meet the grinding requirements of pump shafts with varying shaft diameters. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] The specific embodiments of the present invention are further described in detail below with reference to the accompanying drawings, wherein:

[0012] Figure 1 It is a structural schematic diagram of the present invention;

[0013] Figure 2 It is another structural schematic diagram of the present invention from another angle;

[0014] Figure 3 for Figure 1 Enlarged view of point A in the middle;

[0015] In the figure: 1, bottom plate; 2, slide plate; 3, slide bar; 4, screw rod; 5, positioning motor; 6, turntable; 7, positioning hole; 8, rack; 9, gear; 10, rotating motor; 11, support shaft; 12, pressure rod; 13, pressure block; 14, threaded column; 15, nut; 16, pressure plate; 17, positioning shaft; 18, limit shaft; 19, limit plate; 20, grinding shaft; 21, grinding roller; 22, Drive shaft; 23, drive roller; 24, drive motor; 25, limit block; 26, vertical plate; 27, limit rod; 28, limit spring; 29, tension shaft; 30, tension roller; 31, grinding belt; 32, toothed disc; 33, positioning plate; 34, positioning column; 35, roller; 36, positioning rod; 37, positioning tube; 38, fixed block; 39, positioning block; 40, push rod; 41, positioning spring; DETAILED DESCRIPTION

[0016] The embodiments of the present invention are described in detail below with reference to the accompanying drawings:

[0017] Embodiment 1:

[0018] like Figures 1 to 3As shown, this embodiment discloses a pump shaft grinding device, comprising a base plate 1, a slide plate 2 is arranged above the base plate 1, a slide bar 3 and a screw 4 are also arranged above the base plate 1, the screw 4 is driven to rotate by a positioning motor 5, the screw 4 passes through the slide plate 2 and is threadedly connected to the slide plate 2, the slide bar 3 passes through the slide plate 2 and is slidably connected to the slide plate 2, a turntable 6 is arranged on the slide plate 2 and is rotatably connected to the slide plate 2, the turntable 6 is driven to rotate by a rotating motor 10, a positioning hole 7 penetrating the turntable 6 is arranged on the turntable 6, and the turntable 6 on the side of the positioning hole 7 is A plurality of fixing devices are evenly fixed, and the fixing devices include a support shaft 11 fixed on the turntable 6, a pressure rod 12 rotatably connected to the support shaft 11 is provided on the support shaft 11, and a pressure block 13 is fixed to the end of the pressure rod 12. A plurality of threaded columns 14 are also fixed on the turntable 6, and a pressure plate 16 is also provided on one side of the turntable 6. The threaded column 14 passes through the pressure plate 16 and is slidably connected to the pressure plate 16. The threaded column 14 is provided with a nut 15 threadedly connected to the threaded column 14. A positioning shaft 17 and a limit shaft 18 are also provided above the bottom plate 1. A toothed disc 32 is fixed on both the positioning shaft 17 and the limiting shaft 18, and the two toothed discs 32 are meshed with each other. A limiting plate 19 is fixed on the limiting shaft 18, and a grinding shaft 20 is fixed at the end of the limiting plate 19. A grinding roller 21 is arranged on the grinding shaft 20. A driving shaft 22 is also arranged above the bottom plate 1, and a driving roller 23 is fixed on the driving shaft 22. The driving shaft 22 is driven to rotate by a driving motor 24, and the driving roller 23 is connected to the grinding roller 21 through a grinding belt 31. A positioning plate 33 is also fixed on the positioning shaft 17, and a positioning plate 33 is arranged at the end of the positioning plate 33. A positioning column 34 is provided, a roller 35 is provided on the positioning column 34, a positioning rod 36 is also fixed on the positioning plate 33, a positioning tube 37 rotatably connected to the positioning rod 36 is provided on the positioning rod 36, a push rod 40 is fixed on the positioning tube 37, a fixing block 38 is also fixed on the bottom plate 1, a positioning block 39 rotatably connected to the fixing block 38 is provided on the fixing block 38, the push rod 40 passes through the positioning block 39 and is slidably connected to the positioning block 39, and a compressed positioning spring 41 is also fixed between the positioning block 39 and the positioning tube 37.Insert one end of the pump shaft to be polished into the positioning hole 7, push the pressure plate 16 to move, the pressure plate 16 squeezes each pressure rod 12, the pressure block 13 at the end of the pressure rod 12 squeezes the pump shaft and fixes the pump shaft, then rotate the nut 15, the nut 15 squeezes the pressure plate 16 and fixes the pressure plate 16. After the pump shaft is fixed, drive the screw 4 to rotate through the positioning motor 5, and the pump shaft moves toward the roller 35 and the polishing belt 31. When the pump shaft passes between the roller 35 and the polishing belt 31, due to the action of the positioning spring 41, the positioning spring 41 pushes the positioning tube 37 to make the roller 35 contact with the surface of the pump shaft, and the positioning spring 41 is used to push ... The positioning shaft 17 and the toothed disc 32 on the limiting shaft 18 are meshed with each other, and the grinding belt 31 is in contact with the surface of the pump shaft. The grinding belt 31 is driven to move by the driving motor 24, and when the pump shaft moves, the turntable 6 is driven to rotate by the rotating motor 10, and the pump shaft rotates with the turntable 6, so that the grinding belt 31 can be in contact with the surface of the pump shaft to grind the pump shaft, and when the shaft diameter of the pump shaft changes, due to the action of the roller 35, the positioning spring 41 and the toothed disc 32, the grinding belt 31 is always in close contact with the surface of the pump shaft, so that the surface of the pump shaft can be polished, and the grinding requirements of the pump shaft with changing shaft diameter can be met.

[0019] A circular rack 8 is fixed on the turntable 6 , a gear 9 is fixed on the output end of the rotating motor 10 , and the gear 9 is meshed with the rack 8 .

[0020] Embodiment 2:

[0021] This embodiment discloses a pump shaft grinding device. On the basis of the structure and principle of the embodiment 1, a vertical plate 26 is further fixed on the bottom plate 1 of this embodiment, and a limit block 25 is further arranged above the bottom plate 1. A plurality of limit rods 27 are fixed on the limit block 25. The limit rods 27 pass through the vertical plate 26 and are slidably connected with the vertical plate 26. A limit spring 28 is further fixed between the limit block 25 and the vertical plate 26. A tensioning shaft 29 is further fixed on the limit block 25. A tensioning roller 30 is arranged on the tensioning shaft 29, and a grinding belt 31 also passes around the tensioning roller 30. The limit spring 28 pulls the tensioning roller 30 to tighten the grinding belt 31, so that the pump shaft surface can be polished after the grinding belt 31 is tightened.

[0022] The above are only preferred embodiments of the present invention. It should be pointed out that for ordinary technicians in this technical field, various changes, modifications, substitutions and variations can be made to these embodiments without departing from the technical principles of the present invention. These changes, modifications, substitutions and variations should also be regarded as the scope of protection of the present invention.

Claims

1. A pump shaft grinding device, comprising a base plate, characterized in that: The top of the base is provided with a slide plate, and the top of the base is also provided with a sliding rod and a screw, and the screw is driven to rotate by a positioning motor, and the screw passes through the slide plate and is threadedly connected to the slide plate, and the sliding rod passes through the slide plate and is slidably connected to the slide plate, and a turntable connected to the rotation of the slide plate is provided on the slide plate, and the turntable is driven to rotate by the rotating motor, and a positioning hole that passes through the turntable is provided on the turntable, and a plurality of fixing devices are evenly fixed on the turntable around the positioning hole, and the fixing device includes a support shaft fixed to the turntable, a pressure rod rotatably connected to the support shaft is provided on the support shaft, and a pressure block is fixed to the end of the pressure rod, and a plurality of threaded columns are also fixed on the turntable, and a pressure plate is also provided on one side of the turntable, and the threaded column passes through the pressure plate and is slidably connected to the pressure plate, and a nut threadedly connected to the threaded column is provided on the threaded column, and a positioning shaft and a limit shaft are also provided above the base plate, and the positioning The cam is provided with a toothed plate, and the two toothed plates are meshed with each other. The limit plate is fixed on the limit plate, and a grinding shaft is fixed on the limit plate. A grinding roller is arranged on the grinding shaft. A driving shaft is also arranged above the base plate, and the driving shaft is driven to rotate by a driving motor. The driving roller is connected to the grinding roller through a grinding belt. A positioning plate is also fixed on the positioning shaft, a positioning column is provided at the end of the positioning plate, and a roller is arranged on the positioning column. A positioning rod is also fixed on the positioning plate, and a positioning tube rotatably connected with the positioning rod is provided on the positioning rod. A push rod is fixed on the positioning tube, and a fixed block is also fixed on the base plate, and a positioning block rotatably connected with the fixed block is provided on the fixed block. The push rod passes through the positioning block and is slidably connected to the positioning block, and a compressed positioning spring is also fixed between the positioning block and the positioning tube.

2. The pump shaft grinding device according to claim 1, characterized in that: A circular rack is fixed on the rotating disk, a gear is fixed on the output end of the rotating motor, and the gear is meshed with the rack.

3. The pump shaft grinding device according to claim 1, characterized in that: A vertical plate is also fixed to the bottom plate, a limit block is also arranged above the bottom plate, a plurality of limit rods are fixed to the limit block, the limit rods pass through the vertical plate and are slidably connected to the vertical plate, a limit spring is also fixed between the limit block and the vertical plate, a tensioning shaft is also fixed to the limit block, a tensioning roller is arranged on the tensioning shaft, and the grinding belt also passes around the tensioning roller.

Images