CN112405142A

CN112405142A - Forming equipment is used in processing of centrifugal pump case

Info

Publication number: CN112405142A
Application number: CN202011297371.2A
Authority: CN
Inventors: 林鹏; 胡东; 唐川林; 王舒; 王霞光
Original assignee: Hunan University of Humanities Science and Technology
Current assignee: Hunan University of Humanities Science and Technology
Priority date: 2020-11-18
Filing date: 2020-11-18
Publication date: 2021-02-26

Abstract

The invention discloses a forming device for machining a pump shell of a centrifugal pump, and relates to the technical field of centrifugal pump machining. The external grinding device comprises a grinding track, a sliding block, a connecting column, a vertical rod, a second sliding ring and a grinding machine, and a plurality of rack rods are respectively meshed with a plurality of pinion gears. According to the invention, through the arrangement of the cutter and the knife grinder, when the centrifugal pump shell is machined by the boring grinder, the pump shell is simultaneously bored and ground, so that the machining efficiency of the pump shell machining is improved, the improvement of the surface smoothness of the inner surface of the pump shell is facilitated, the probability of cavitation of the pump shell is reduced, through the arrangement of the external grinding device, the grinding device rotates around the grinding track, the omnibearing grinding of the pump shell is realized, the machining efficiency is improved, through the arrangement of the transmission device and the fixing device, the anti-slip pads can clamp pump shells of different sizes, the anti-slip pads are not easy to slip off, and the.

Description

Forming equipment is used in processing of centrifugal pump case

Technical Field

The invention belongs to the technical field of centrifugal pump processing, and particularly relates to forming equipment for processing a pump shell of a centrifugal pump.

Background

A pump is a machine that delivers or pressurizes a fluid. The pump is mainly used to transport water, oil, acid-base liquid, emulsion, suspoemulsion and liquid metal, etc. and also can transport liquid, gas mixture and liquid containing suspended solid matter.

The forming equipment for processing the pump shell of the centrifugal pump in the prior art has the defects of uneven inner and outer surfaces after processing, heavy and uneasy movement of the device, low processing efficiency and the like, and provides the forming equipment for processing the pump shell of the centrifugal pump.

Disclosure of Invention

The invention aims to provide forming equipment for processing a pump shell of a centrifugal pump, which solves the problems that the existing forming equipment is not provided with a buffering protection device, cannot well fix a stable testing device and is not provided with a damping structure.

In order to solve the technical problems, the invention is realized by the following technical scheme:

the invention relates to a forming device for processing a pump shell of a centrifugal pump, which comprises a base, a sliding device, a boring hole polishing device, an external polishing device, a transmission device and a fixing device, wherein the base comprises a bearing plate, the sliding device comprises a sliding rod and a bearing seat, the lower surface of the bearing seat is welded with the upper surface of the bearing plate, the boring hole polishing device comprises an air pump, a push rod, a boring hole polisher, connecting rods and first sliding rings, the lower surface of the air pump is connected with the upper surface of the bearing plate, one end of the push rod is connected with one side surface of the air pump, the two connecting rods are respectively welded with the outer surfaces of the two first sliding rings, the two first sliding rings are respectively in sliding fit with the two sliding rods, the external polishing device comprises a polishing rail, a sliding block, a connecting post, a vertical rod, a second, one side surfaces of the two sliding blocks are respectively welded with the other ends of the two connecting columns, one side surface of each vertical rod is provided with a slide way, the two sliding blocks are respectively in sliding fit with the two slide ways, the lower surfaces of the two vertical rods are respectively welded with the outer surfaces of the two second sliding rings, the two second sliding rings are respectively in sliding fit with the two sliding rods, the transmission device comprises a positive and negative motor, a stress plate, a driving gear, a driven gear, a fixed rod and an auxiliary gear, the outer surface of the stress plate is welded with the upper surface of the bearing seat, the positive and negative motor is provided with a rotating shaft, the driving gear is rotationally matched with the rotating shaft, a plurality of driven gears are all meshed with the driving gear, a plurality of auxiliary gears are respectively connected with a plurality of driven gears through a plurality of fixed rods, the fixing device comprises rack rods, sliding rings and first, and the rack rods are respectively in sliding fit with the sliding rings, one end of each first support column is welded with the outer surfaces of the sliding rings, and the other end of each first support column is welded with one side surface of the stress plate.

Preferably, the base still includes base body, bumper shock absorber, universal wheel, drive arrangement and spring, two bumper shock absorber lower surfaces all with base body upper surface connection, two universal wheel upper surfaces respectively with two bumper shock absorber upper surface connections, drive arrangement upper surface and base body lower surface connection, it is a plurality of spring lower surface all with base body upper surface connection, it is a plurality of spring upper surface all with loading board lower surface connection, wherein, the spring has ten to twelve, and the effect of spring is to carry out the shock attenuation when removing, prevents that the device from causing the damage, extension device life.

Preferably, slider still includes first fixed block and second fixed block, two first fixed block lower surfaces and two second fixed block lower surfaces all with base body upper surface welding, two first fixed block side surfaces and two second fixed block side surfaces all are equipped with the mounting hole, and two slide bars are connected with a plurality of mounting holes respectively, and the slide bar makes bore hole grinding device and outside grinding device can follow the slide bar and slide.

Preferably, the bore hole polisher further comprises a bore hole polisher body, a fixing column, a cutter, a knife grinder and a round shaft, the other end of the push rod is connected with one side surface of the bore hole polisher body, the other ends of the two connecting rods are respectively connected with two side surfaces of the bore hole polisher body, the lower surface of the fixing column is connected with the upper surface of the bore hole polisher body, one end of the round shaft is connected with the outer surface of the fixing column, one end of the cutter and one end of the knife grinder are in rotating fit with the round shaft, the cutter and the knife grinder work simultaneously, polishing efficiency is higher, surface smoothness of the inner surface of the pump shell is improved.

Preferably, the polisher further comprises a polishing motor, a movable gear, a driving motor, a circular plate, a gear box and a polishing wheel, the inner surface of the polishing track is provided with a rack, the movable gear is meshed with the rack, the driving motor is provided with a rotating shaft, the movable gear is in rotating fit with the rotating shaft, the input end of the gear box is connected with the polishing motor, the output end of the gear box is connected with the polishing wheel, one side surface of the circular plate is connected with the rotating shaft, the other side surface of the circular plate is connected with one side surface of the gear box, and the polisher can rotate around the polishing track to polish the outside of the pump.

Preferably, the transmission device further comprises a limiting block, a plurality of limiting rods and a plurality of wheel shafts, the inner surfaces of the wheel shafts are respectively connected with the outer surfaces of the fixing rods, one ends of the limiting rods are respectively welded with the outer surfaces of the wheel shafts, the other ends of the limiting rods are respectively connected with the outer surfaces of the limiting blocks, and the transmission device enables the rack rods to stretch out and draw back so as to clamp pump cases with different sizes.

Preferably, fixing device still includes second support column, fixed plate, spacing post, slipmat and limiting plate, and is a plurality of second support column one end respectively with a plurality of slip ring outer surface welding, a plurality of the second support column other end all with limiting plate side surface welding, a plurality of rack bar one end is connected with a plurality of fixed plate side surface respectively, and is a plurality of the slipmat passes through a plurality of spacing post connections with a plurality of fixed plates, and wherein, fixing device has four, and fixing device's effect is fixed the pump casing, prevents to take place the skew when adding man-hour pump casing.

The invention has the following beneficial effects:

1. according to the invention, the cutter and the knife grinder are arranged, so that when the boring grinder is used for machining the centrifugal pump shell, the pump shell is simultaneously bored and ground, the machining efficiency of the pump shell machining is improved, the improvement of the surface smoothness of the inner surface of the pump shell is facilitated, and the probability of cavitation erosion of the pump shell is reduced.

2. According to the invention, the external polishing device is arranged to rotate around the polishing track through the polishing machine, so that the pump shell is polished in all directions, and the processing efficiency is improved.

3. The anti-slip device comprises a transmission device, a fixing device and a non-slip mat, wherein the transmission device is arranged on the anti-slip mat, and the fixing device is arranged on the anti-slip mat.

Of course, it is not necessary for any product in which the invention is practiced to achieve all of the above-described advantages at the same time.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without creative efforts.

FIG. 1 is a schematic view of the overall structure of a molding apparatus for machining a pump casing of a centrifugal pump according to the present invention;

FIG. 2 is an isometric view of a centrifugal pump casing forming apparatus of the present invention;

FIG. 3 is a schematic structural view of a boring and polishing device according to the present invention;

FIG. 4 is a schematic view of the external grinding apparatus of the present invention;

FIG. 5 is a schematic view of the sander of the present invention;

FIG. 6 is a schematic view of the transmission and the fixing device of the present invention;

fig. 7 is a schematic view of the transmission between gears of the transmission of the present invention.

In the drawings, the components represented by the respective reference numerals are listed below:

100. a base; 110. a shock absorber; 120. a universal wheel; 130. a drive device; 140. a spring; 150. a carrier plate; 200. a sliding device; 210. a first fixed block; 220. a second fixed block; 230. a slide bar; 240. a bearing seat; 300. a boring and polishing device; 310. an air pump; 320. a push rod; 330. boring and grinding machine; 331. fixing a column; 332. a cutter; 333. sharpening the knife; 334. a circular shaft; 340. a connecting rod; 350. a first slip ring; 400. an external polishing device; 410. polishing the track; 420. a slider; 430. connecting columns; 440. a vertical rod; 450. a second slip ring; 460. a sander; 461. polishing the motor; 462. a movable gear; 463. a drive motor; 464. a circular plate; 465. a gear case; 466. grinding a grinding wheel; 500. a transmission device; 510. a positive and negative motor; 520. a stress plate; 530. a driving gear; 540. a driven gear; 550. fixing the rod; 560. a pinion gear; 570. a limiting block; 580. a limiting rod; 590. a wheel axle; 600. a fixing device; 610. a rack bar; 620. a third slip ring; 630. a first support column; 640. a second support column; 650. a fixing plate; 660. a limiting column; 670. a non-slip mat; 680. and a limiting plate.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In the description of the present invention, it is to be understood that the terms "upper", "middle", "outer", "inner", "lower", "around", and the like, indicate orientations or positional relationships, are used merely to facilitate the description of the present invention and to simplify the description, and do not indicate or imply that the referenced components or elements must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be taken as limiting the present invention.

The first embodiment is as follows:

referring to fig. 1-7, the present invention is a forming apparatus for processing a pump casing of a centrifugal pump, including a base 100, a sliding device 200, a boring polishing device 300, an external polishing device 400, a transmission device 500, and a fixing device 600, wherein the base 100 includes a carrier plate 150, the sliding device 200 includes a sliding rod 230 and a carrier seat 240, a lower surface of the carrier seat 240 is welded to an upper surface of the carrier plate 150, the boring polishing device 300 includes an air pump 310, a push rod 320, a boring polisher 330, a connecting rod 340, and a first sliding ring 350, a lower surface of the air pump 310 is connected to an upper surface of the carrier plate 150, one end of the push rod 320 is connected to a side surface of the air pump 310, the two connecting rods 340 are respectively welded to outer surfaces of the two first sliding rings 350, the two first sliding rings 350 are respectively slidably fitted to the two sliding rods 230, the external polishing device 400 includes a polishing rail 410, a sliding, one end of each connecting column 430 is welded with the outer surface of the polishing track 410, one side surface of each sliding block 420 is welded with the other end of each connecting column 430, one side surface of each vertical rod 440 is provided with a slideway, each sliding block 420 is in sliding fit with the slideways, the lower surfaces of the two vertical rods 440 are welded with the outer surfaces of the two second sliding rings 450 respectively, each second sliding ring 450 is in sliding fit with the corresponding sliding rod 230 respectively, the transmission device 500 comprises a positive and negative motor 510, a stress plate 520, a driving gear 530, a driven gear 540, a fixed rod 550 and a pinion 560, the outer surface of the stress plate 520 is welded with the upper surface of the bearing seat 240, the positive and negative motor 510 is provided with a rotating shaft, the driving gear 530 is in rotating fit with the rotating shaft, the driven gears 540 are engaged with the driving gear 530, the pinion 560 is connected with the driven gears 540 through the fixed rods 550 respectively, the fixing device 600 comprises a rack, the rack rods 610 are respectively meshed with the pinion gears 560, the rack rods 610 are respectively in sliding fit with the third sliding rings (620), one ends of the first support columns 630 are respectively welded to the outer surfaces of the third sliding rings (620), and the other ends of the first support columns 630 are respectively welded to one side surface of the stress plate 520.

Further, the base 100 further comprises a base body, the shock absorbers 110, the universal wheels 120, the driving device 130 and the springs 140, the lower surfaces of the two shock absorbers 110 are connected with the upper surface of the base body, the upper surfaces of the two universal wheels 120 are respectively connected with the upper surfaces of the two shock absorbers 110, the upper surface of the driving device 130 is connected with the lower surface of the base body, the lower surfaces of the springs 140 are connected with the upper surface of the base body, the upper surfaces of the springs 140 are connected with the lower surface of the bearing plate 150, wherein the springs 140 are ten to twelve, the springs 140 are used for absorbing shock when moving, the device is prevented from being damaged, and the service life of the device is prolonged.

Further, the sliding device 200 further includes a first fixing block 210 and a second fixing block 220, lower surfaces of the two first fixing blocks 210 and lower surfaces of the two second fixing blocks 220 are welded to the upper surface of the base body, one side surface of the two first fixing blocks 210 and one side surface of the two second fixing blocks 220 are respectively provided with a mounting hole, the two sliding rods 230 are respectively connected with the mounting holes, and the sliding rods 230 enable the bore hole polishing device 300 and the external polishing device 400 to slide along the sliding rods 230.

Further, the boring sander 330 further comprises a boring sander body, a fixing column 331, a cutter 332, a sharpening blade 333 and a round shaft 334, the other end of the push rod 320 is connected with one side surface of the boring sander body, the other ends of the two connecting rods 340 are respectively connected with two side surfaces of the boring sander body, the lower surface of the fixing column 331 is connected with the upper surface of the boring sander body, one end of the round shaft 334 is connected with the outer surface of the fixing column 331, one end of the cutter 332 and one end of the sharpening blade 333 are both in rotating fit with the round shaft 334, the cutter 332 and the sharpening blade 333 work simultaneously, so that the sanding efficiency is higher, the surface smoothness of the inner surface of the.

Further, the polishing machine 460 further includes a polishing motor 461, a movable gear 462, a driving motor 463, a circular plate 464, a gear box 465 and a polishing wheel 466, a rack is provided on the inner surface of the polishing rail 410, the movable gear 462 is engaged with the rack, the driving motor 463 is provided with a rotating shaft, the movable gear 462 is in rotating fit with the rotating shaft, the input end of the gear box 465 is connected with the polishing motor 461, the output end of the gear box 465 is connected with the polishing wheel 466, one side surface of the circular plate 464 is connected with the rotating shaft, the other side surface of the circular plate 464 is connected with one side surface of the gear box 465, and the polishing machine 460 can rotate around the.

Further, the transmission device 500 further comprises a limiting block 570, a limiting rod 580 and a wheel shaft 590, the inner surfaces of the wheel shafts 590 are respectively connected with the outer surfaces of the fixing rods 550, one ends of the limiting rods 580 are respectively welded with the outer surfaces of the wheel shafts 590, the other ends of the limiting rods 580 are respectively connected with the outer surfaces of the limiting blocks 570, and the transmission device 500 enables the rack rods 610 to stretch and retract so as to clamp pump cases of different sizes.

Further, fixing device 600 still includes second support column 640, fixed plate 650, spacing post 660, slipmat 670 and limiting plate 680, a plurality of second support column 640 one end respectively with a plurality of third slip ring (620) outer surface weld, a plurality of second support column 640 other ends all with a limiting plate 680 side surface weld, a plurality of rack bar 610 one end respectively with a plurality of fixed plate 650 side surface connections, a plurality of slipmats 670 are connected through a plurality of spacing posts 660 with a plurality of fixed plate 650, wherein, fixing device 600 has four, fixing device 600's effect is fixed the pump casing, prevent to take place the skew when adding man-hour pump casing.

Example two:

referring to fig. 1-7, according to the invention, by arranging the cutter 332 and the knife sharpener 333, when the boring sander 330 machines a centrifugal pump casing, the pump casing is simultaneously bored and sanded, so that the machining efficiency of the pump casing is improved, the smoothness of the surface of the inner surface of the pump casing is improved, and the probability of cavitation of the pump casing is reduced.

In the description herein, references to the description of "one embodiment," "an example," "a specific example" or the like are intended to mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The preferred embodiments of the invention disclosed above are intended to be illustrative only. The preferred embodiments are not intended to be exhaustive or to limit the invention to the precise embodiments disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and the practical application, to thereby enable others skilled in the art to best utilize the invention. The invention is limited only by the claims and their full scope and equivalents.

Claims

1. The utility model provides a centrifugal pump shell is former for processing, includes base (100), slider (200), bore hole grinding device (300), outside grinding device (400), transmission (500) and fixing device (600), its characterized in that: the base (100) comprises a bearing plate (150), the sliding device (200) comprises a sliding rod (230) and a bearing seat (240), the lower surface of the bearing seat (240) is welded with the upper surface of the bearing plate (150), the boring hole polishing device (300) comprises an air pump (310), a push rod (320), a boring hole polishing machine (330), a connecting rod (340) and first sliding rings (350), the lower surface of the air pump (310) is connected with the upper surface of the bearing plate (150), one end of the push rod (320) is connected with one side surface of the air pump (310), the two connecting rods (340) are respectively welded with the outer surfaces of the two first sliding rings (350), the two first sliding rings (350) are respectively in sliding fit with the two sliding rods (230), the external polishing device (400) comprises a polishing track (410), a sliding block (420), a connecting column (430), a vertical rod (440), a second sliding ring (450) and a polishing machine (460), two spliced pole (430) one end all with the surface weld of track (410) of polishing, two sliding blocks (420) side surface respectively with two spliced pole (430) other end welding, two montant (440) side surface all is equipped with the slide, two sliding blocks (420) respectively with two slide sliding fit, two montant (440) lower surfaces respectively with two second slip ring (450) surface weld, two second slip ring (450) respectively with two slide bars (230) sliding fit, transmission (500) include positive and negative motor (510), atress board (520), driving gear (530), driven gear (540), dead lever (550) and pinion (560), atress board (520) surface and the upper surface weld of bearing seat (240), positive and negative motor (510) are equipped with the axis of rotation, driving gear (530) and axis of rotation normal running fit, a plurality of driven gear (540) all meshes with driving gear (530), and is a plurality of pinion (560) are connected through a plurality of dead levers (550) with a plurality of driven gear (540) respectively, fixing device (600) include rack bar (610), slip ring (620) and first support column (630), and are a plurality of rack bar (610) mesh with a plurality of pinion (560) respectively, and are a plurality of rack bar (610) respectively with a plurality of slip ring (620) sliding fit, a plurality of first support column (630) one end welds with a plurality of slip ring (620) surface respectively, a plurality of first support column (630) other end all with atress board (520) one side surface weld.

2. The molding apparatus for processing a pump casing of a centrifugal pump according to claim 1, wherein: base (100) still include base body, bumper shock absorber (110), universal wheel (120), drive arrangement (130) and spring (140), two bumper shock absorber (110) lower surfaces all with base body upper surface connection, two universal wheel (120) upper surfaces respectively with two bumper shock absorbers (110) upper surface connection, drive arrangement (130) upper surface and base body lower surface connection, it is a plurality of spring (140) lower surface all with base body upper surface connection, it is a plurality of spring (140) upper surface all with loading board (150) lower surface connection.

3. The molding apparatus for processing a pump casing of a centrifugal pump according to claim 1, wherein: the sliding device (200) further comprises first fixing blocks (210) and second fixing blocks (220), the lower surfaces of the two first fixing blocks (210) and the lower surfaces of the two second fixing blocks (220) are welded to the upper surface of the base body, mounting holes are formed in one side surface of each of the two first fixing blocks (210) and one side surface of each of the two second fixing blocks (220), and the two sliding rods (230) are connected with the mounting holes respectively.

4. The molding apparatus for processing a pump casing of a centrifugal pump according to claim 1, wherein: the boring polisher (330) further comprises a boring polisher body, a fixing column (331), a cutter (332), a sharpening blade (333) and a circular shaft (334), the other end of the push rod (320) is connected with one side surface of the boring polisher body, the other ends of the two connecting rods (340) are respectively connected with two side surfaces of the boring polisher body, the lower surface of the fixing column (331) is connected with the upper surface of the boring polisher body, one end of the circular shaft (334) is connected with the outer surface of the fixing column (331), and one end of the cutter (332) and one end of the sharpening blade (333) are matched with the circular shaft (334) in a rotating mode.

5. The molding apparatus for processing a pump casing of a centrifugal pump according to claim 1, wherein: the polisher (460) further comprises a polishing motor (461), a movable gear (462), a driving motor (463), a circular plate (464), a gear box (465) and a polishing grinding wheel (466), wherein a rack is arranged on the inner surface of the polishing track (410), the movable gear (462) is meshed with the rack, the driving motor (463) is provided with a rotating shaft, the movable gear (462) is in rotating fit with the rotating shaft, the input end of the gear box (465) is connected with the polishing motor (461), the output end of the gear box (465) is connected with the polishing grinding wheel (466), one side surface of the circular plate (464) is connected with the rotating shaft, and the other side surface of the circular plate (464) is connected with one side surface of the gear box (465.

6. The molding apparatus for processing a pump casing of a centrifugal pump according to claim 1, wherein: the transmission device (500) further comprises a limiting block (570), a plurality of limiting rods (580) and wheel shafts (590), the inner surfaces of the wheel shafts (590) are respectively connected with the outer surfaces of the fixing rods (550), one ends of the limiting rods (580) are respectively welded with the outer surfaces of the wheel shafts (590), and the other ends of the limiting rods (580) are respectively connected with the outer surfaces of the limiting block (570).

7. The molding apparatus for processing a pump casing of a centrifugal pump according to claim 1, wherein: fixing device (600) still includes second support column (640), fixed plate (650), spacing post (660), slipmat (670) and limiting plate (680), and is a plurality of second support column (640) one end respectively with a plurality of slip ring (620) outer surface welding, a plurality of the second support column (640) other end all with limiting plate (680) a side surface welding, a plurality of rack bar (610) one end is connected with a plurality of fixed plate (650) a side surface respectively, and is a plurality of slipmat (670) is connected through a plurality of spacing posts (660) with a plurality of fixed plate (650).