CN223933290U

CN223933290U - Petrochemical centrifugal pump grinding device

Info

Publication number: CN223933290U
Application number: CN202520631837.XU
Authority: CN
Inventors: 曲鹏; 许金鹏; 宋世龙
Original assignee: DANAI PUMPS CO LTD
Current assignee: DANAI PUMPS CO LTD
Priority date: 2025-04-07
Filing date: 2025-04-07
Publication date: 2026-02-24
Anticipated expiration: 2035-04-07

Abstract

This utility model relates to the petrochemical field, and more particularly to a grinding device for centrifugal pumps in the petrochemical industry. It includes a grinding table, a housing at the lower end of the grinding table, and support legs at the lower end of the housing. A rotating assembly for adjusting the horizontal angle of the centrifugal pump housing is located inside the housing. A turntable is located within the rotating assembly, and a groove is formed at the upper end of the turntable. A clamping assembly for fixing the centrifugal pump housing is located within the groove. A lifting assembly is located at the upper end of the grinding table, and an electric push rod is located at the lifting end of the lifting assembly. A grinding machine is located at the telescopic end of the electric push rod, and the grinding machine moves vertically via the lifting assembly. This utility model not only avoids the uneven grinding defects that occur when grinding manually, but also adapts to centrifugal pump housings of different sizes, improving the versatility and practicality of the device. Furthermore, the cooperation between the electric push rod and the lifting assembly enables precise vertical movement of the grinding machine, effectively improving the grinding quality and production efficiency of the centrifugal pump housing.

Description

Petrochemical centrifugal pump grinding device

Technical Field

The utility model relates to the field of petrochemical industry, in particular to a petrochemical industry centrifugal pump polishing device.

Background

In the field of petrochemical industry, a centrifugal pump is a common fluid conveying device, after a shell of the centrifugal pump is manufactured, burrs, unevenness or other defects generally exist on the surface of the shell, polishing treatment is needed, so that the surface quality and the dimensional accuracy of the shell are ensured, and the overall performance and the service life of the centrifugal pump are improved.

However, the traditional centrifugal pump shell polishing mode mainly relies on manual operation, and the manual polishing tool is used for polishing the centrifugal pump shell, so that a plurality of defects exist in the manual polishing mode, firstly, uniformity of manual polishing is difficult to ensure, uneven polishing of the surface of the centrifugal pump shell is easily caused due to the difference of factors such as strength, angle and speed of the manual operation, appearance and quality of products are affected, secondly, efficiency of manual polishing is low, a large amount of time and labor cost are required for manual polishing of the centrifugal pump shell for mass production, and the requirement of mass production cannot be met.

Therefore, to the above-mentioned traditional manual work centrifugal pump shell mode of polishing because of being difficult to guarantee homogeneity and inefficiency, can't satisfy the condition of the demand of mass production, can design a petrochemical centrifugal pump grinding device, not only avoided the manual work to hold the uneven defect of polishing that appears when polishing, simultaneously, still saved the manpower, and then can effectively promote centrifugal pump shell's quality of polishing and production efficiency.

Disclosure of utility model

In order to solve the problem that the traditional manual polishing centrifugal pump shell mode cannot meet the requirement of mass production due to difficulty in guaranteeing uniformity and low efficiency.

The petrochemical centrifugal pump polishing device comprises a polishing table, wherein the lower end of the polishing table is provided with a box body, the lower end of the box body is provided with supporting legs, a rotating assembly for adjusting the horizontal angle of a centrifugal pump shell is arranged in the box body, a turntable is arranged in the rotating assembly, the upper end of the turntable is provided with a groove, a clamping assembly for fixing the centrifugal pump shell is arranged in the groove, the upper end of the polishing table is provided with a lifting assembly, the lifting end of the lifting assembly is internally provided with an electric push rod, the telescopic end of the electric push rod is provided with a polishing machine, and the polishing machine vertically moves through the lifting assembly.

Preferably, the rotating assembly comprises a first rotating motor, the bottom of the box body is provided with a first rotating motor, an output shaft of the first rotating motor is connected with a transmission shaft, the bottom of the box body is provided with a first bearing seat, a supporting shaft is rotationally connected with the first bearing seat, the upper end of the supporting shaft is connected with the lower end of the turntable, and a transmission structure is arranged between the transmission shaft and the supporting shaft.

Preferably, the transmission structure comprises a drive bevel gear, the outer wall of the transmission shaft is fixedly connected with the drive bevel gear, the outer wall of the rotation shaft is fixedly connected with a driven bevel gear, and the drive bevel gear is meshed with the driven bevel gear.

Preferably, the clamping assembly comprises a second bearing seat, a second bearing seat is arranged on the inner wall of one side of the groove, a bidirectional threaded rod is connected in the second bearing seat in a rotating mode, a knob is arranged at the tail end of the bidirectional threaded rod, a movable seat is arranged on the outer wall of the bidirectional threaded rod, and an arc-shaped clamping plate is arranged at one end of the movable seat, facing the centrifugal pump shell.

Preferably, a guide rod is fixedly connected in the groove, and the outer wall of the guide rod is in sliding connection with the movable seat.

Preferably, the lifting assembly comprises a support plate, the upper end of the polishing table is provided with a support plate and a third bearing seat, a screw rod is rotationally connected to the third bearing seat, a second rotating motor is arranged at the upper end of the support plate, an output shaft of the second rotating motor is connected with the upper end of the screw rod, a lifting seat is connected with the outer wall of the screw rod in a threaded manner, and an electric push rod is arranged in the lifting seat.

Preferably, the vertical part of the support plate is provided with a sliding rail, one end of the movable seat is provided with a sliding block matched with the sliding rail, and the sliding block is in sliding connection with the sliding rail.

Compared with the traditional manual polishing mode, the centrifugal pump shell can freely rotate in the polishing process through the built-in rotating assembly, polishing uniformity is guaranteed, uneven polishing defects caused by manual handheld polishing are avoided, meanwhile, the clamping assembly can adapt to centrifugal pump shells of different sizes, universality and practicability of the device are improved, in addition, the electric push rod is matched with the lifting assembly, accurate movement of the polishing machine in the vertical direction is achieved, the centrifugal pump shell polishing device is very suitable for fine polishing operation, and polishing quality and production efficiency of the centrifugal pump shell can be effectively improved.

Drawings

FIG. 1 shows a schematic view of a first perspective construction of a petrochemical centrifugal pump polishing device of the present utility model;

FIG. 2 shows a schematic view of a second perspective construction of the petrochemical centrifugal pump polishing device of the present utility model;

FIG. 3 shows a schematic perspective view of a rotational assembly of the petrochemical centrifugal pump polishing device of the present utility model;

FIG. 4 shows a schematic perspective view of a clamping assembly of the petrochemical centrifugal pump polishing device of the present utility model;

Fig. 5 shows a schematic perspective view of a lifting assembly of the petrochemical centrifugal pump polishing device according to the utility model.

The reference numerals are 1, a polishing table, 2, a box body, 3, a support leg, 4, a rotary table, 5, a groove, 6, an electric push rod, 7, a polishing machine, 8, a first rotating motor, 9, a first bearing seat, 10, a supporting shaft, 11, a transmission shaft, 12, a driving bevel gear, 13, a driven bevel gear, 14, a guide rod, 15, a support plate, 16, a third bearing seat, 17, a screw rod, 18, a lifting seat, 19, a sliding block, 20, a sliding rail, 21, a second bearing seat, 22, a bidirectional threaded rod, 23, a knob, 24, a moving seat, 25, an arc clamping plate, 26 and a second rotating motor.

Detailed Description

The utility model is further described below with reference to the drawings and examples.

Referring to fig. 1-5, the petrochemical centrifugal pump polishing device comprises a polishing table 1, wherein the lower end of the polishing table 1 is provided with a box body 2, the lower end of the box body 2 is provided with a supporting leg 3, a rotating component for adjusting the horizontal angle of a centrifugal pump shell is arranged in the box body 2, a turntable 4 is arranged in the rotating component, the upper end of the turntable 4 is provided with a groove 5, a clamping component for fixing the centrifugal pump shell is arranged in the groove 5, the upper end of the polishing table 1 is provided with a lifting component, the lifting end of the lifting component is internally provided with an electric push rod 6, the telescopic end of the electric push rod 6 is provided with a polishing machine 7, the polishing machine 7 vertically moves through the lifting component, the polishing table 1 serves as a working platform of the whole device, the design is firm and stable, vibration and strength generated in the polishing process can be borne, the rotating component is arranged in the box body 2, the design allows the centrifugal pump shell to freely rotate in the polishing process, the clamping component is arranged in the groove 5 of the turntable 4 to adapt to centrifugal pump shells of different sizes and shapes, the electric push rod 6 accurately controls the electric push rod 6 to realize accurate and precise square operation of the electric push rod 6, the electric push rod 6 can accurately move to the electric push rod 6 at the high-speed and high-precision grinding machine, and high-precision grinding speed can be realized, and the electric push rod can accurately move to the electric push rod 7 can be used for polishing machine, and the grinding machine can accurately move to the grinding machine.

Referring to fig. 1 and 3, in this embodiment, the rotating assembly includes a first rotating electric machine 8, a first rotating electric machine 8 is disposed at the bottom of the box 2, a transmission shaft 11 is connected to an output shaft of the first rotating electric machine 8, a first bearing seat 9 is disposed at the bottom of the box 2, a supporting shaft 10 is rotatably connected to the first bearing seat 9, an upper end of the supporting shaft 10 is connected to a lower end of the turntable 4, a transmission structure is disposed between the transmission shaft 11 and the supporting shaft 10, the transmission structure includes a driving bevel gear 12, an outer wall of the transmission shaft 11 is fixedly connected with the driving bevel gear 12, an outer wall of the rotation shaft is fixedly connected with a driven bevel gear 13, the driving bevel gear 12 is engaged with the driven bevel gear 13, the first rotating electric machine 8 is mounted at the bottom of the box 2, as a power source of the rotating assembly, the transmission shaft 11 is directly connected with an output shaft of the first rotating electric machine 8, the first bearing seat 9 is mounted at the bottom of the box 2, a stable support is provided for the supporting shaft 10, the upper end of the supporting shaft 10 is firmly connected to a lower end of the turntable 4, and is used as a supporting point of the turntable 4 for rotating, when the first rotating electric machine 8 is in high-efficient and the turntable 12 is in high-driving and high-noise driving bevel gear 12 is driven by the turntable 12, and the turntable 13 is in high-efficient rotation, and has a high-driving bevel gear 12, and high-driving efficiency and high-driving bevel gear 13 is in driving efficiency and high-driving bevel gear 13.

Referring to fig. 1,4 and 5, in this embodiment, the clamping assembly includes a second bearing seat 21, a second bearing seat 21 is disposed on an inner wall of one side of the groove 5, a bidirectional threaded rod 22 is rotationally connected to the second bearing seat 21, a knob 23 is disposed at an end of the bidirectional threaded rod 22, a movable seat 24 is disposed on an outer wall of the bidirectional threaded rod 22, an arc clamping plate 25 is disposed at an end of the movable seat 24 facing the centrifugal pump housing, a guide rod 14 is fixedly connected in the groove 5, an outer wall of the guide rod 14 is slidably connected with the movable seat 24, the lifting assembly includes a support plate 15, a support plate 15 and a third bearing seat 16 are disposed at an upper end of the polishing table 1, a screw 17 is rotationally connected to the third bearing seat 16, a second rotary motor 26 is disposed at an upper end of the support plate 15, an output shaft of the second rotary motor 26 is connected to an upper end of the screw 17, a lifting seat 18 is threadably connected to an outer wall of the screw 17, an electric push rod 6 is arranged in the lifting seat 18, a sliding rail 20 is arranged at the vertical part of the support plate 15, a sliding block 19 matched with the sliding rail 20 is arranged at one end of the moving seat 24, the sliding block 19 is in sliding connection with the sliding rail 20, a second bearing seat 21 is arranged on one side inner wall of the groove 5 of the rotary table 4 and provides stable support and rotation center for the bidirectional threaded rod 22, a precise bearing hole is designed to ensure that the bidirectional threaded rod 22 keeps stable and precise in the rotation process, a positive and negative thread is designed on the outer wall of the bidirectional threaded rod 22 and is used for driving the two moving seats 24 to move in opposite directions at the same time, a knob 23 is arranged at the tail end of the bidirectional threaded rod 22 and is used for manually rotating the bidirectional threaded rod 22, an arc clamping plate 25 is arranged at one end of the moving seat 24 facing the centrifugal pump shell and is used for clamping and fixing the centrifugal pump shell, an elastic pad is designed in the arc clamping plate 25 and the clamping force is increased, the centrifugal pump shell is protected from damage, guide rod 14 fixed connection is in recess 5, provide stable direction and support for movable seat 24, no. two rotating electrical machines 26 are installed in the upper end of extension board 15, provide power for screw rod 17, the outer wall design of screw rod 17 has the screw thread for drive elevating seat 18 reciprocates, slide rail 20 fixed connection is in the perpendicular portion of extension board 15, slider 19 installs in the one end of elevating seat 18, with slide rail 20 adaptation and sliding connection, this design has strengthened elevating seat 18 stability in the lift process, prevent that it from taking place to rock or deviate from the track.

In the operation process, firstly, the centrifugal pump shell is placed on the turntable 4, then the knob 23 is rotated to drive the bidirectional threaded rod 22 to rotate, the action drives the movable seat 24 to slide along the guide rod 14 until the arc clamping plate 25 tightly clamps and fixes the centrifugal pump shell, then, the second rotating motor 26, the grinding machine 7 and the electric push rod 6 are started, the second rotating motor 26 rotates through the driving screw 17, the lifting plate is enabled to move in the vertical direction by utilizing the interaction force among threads, and meanwhile, the electric push rod 6 drives the grinding machine 7 to displace, so that the grinding machine 7 can accurately grind the centrifugal pump shell;

if the horizontal angle of the centrifugal pump casing needs to be adjusted, only the first rotating motor 8 is started, once the first rotating motor 8 is started, the transmission shaft 11 is driven to start rotating, the transmission shaft 11 further drives the driving bevel gear 12 to rotate, and the driven bevel gear 13 also rotates along with the driving bevel gear 12 due to the accurate meshing relationship with the driven bevel gear 13, so that the supporting shaft 10 and the turntable 4 are driven to rotate together, and finally the adjustment of the horizontal angle of the centrifugal pump casing is realized.

Through above-mentioned step, this scheme compares in traditional manual mode of polishing, through built-in rotating assembly, centrifugal pump shell can freely rotate at the in-process of polishing, the homogeneity of polishing has been ensured, uneven defect of polishing that appears when having avoided artifical handheld polishing, simultaneously, clamping assembly can adapt to the centrifugal pump shell of equidimension, the commonality and the practicality of device have been promoted, in addition, electric putter 6 and lifting assembly's cooperation, the accurate removal of polisher 7 in the vertical direction has been realized, fine polishing operation very is fit for, can effectively promote centrifugal pump shell's quality of polishing and production efficiency, traditional manual mode of polishing centrifugal pump shell is because of being difficult to guarantee homogeneity and inefficiency, unable problem of satisfying the demand of mass production.

The embodiments of the present utility model have been described in detail with reference to the drawings, but the present utility model is not limited to the above embodiments, and various changes can be made within the knowledge of those skilled in the art without departing from the spirit of the present utility model.

Claims

1. The petrochemical centrifugal pump polishing device comprises a polishing table (1), wherein a box body (2) is arranged at the lower end of the polishing table (1), supporting legs (3) are arranged at the lower end of the box body (2), and the petrochemical centrifugal pump polishing device is characterized in that a rotating assembly for adjusting the horizontal angle of a centrifugal pump shell is arranged in the box body (2), a rotary table (4) is arranged in the rotating assembly, a groove (5) is formed in the upper end of the rotary table (4), a clamping assembly for fixing the centrifugal pump shell is arranged in the groove (5), a lifting assembly is arranged at the upper end of the polishing table (1), an electric push rod (6) is arranged in the lifting end of the lifting assembly, a polishing machine (7) is arranged at the telescopic end of the electric push rod (6), and the polishing machine (7) moves vertically through the lifting assembly.

2. The petrochemical centrifugal pump polishing device according to claim 1, wherein the rotating assembly comprises a first rotating motor (8), the bottom of the box body (2) is provided with the first rotating motor (8), an output shaft of the first rotating motor (8) is connected with a transmission shaft (11), the bottom of the box body (2) is provided with a first bearing seat (9), a supporting shaft (10) is rotationally connected with the first bearing seat (9), the upper end of the supporting shaft (10) is connected with the lower end of the rotary table (4), and a transmission structure is arranged between the transmission shaft (11) and the supporting shaft (10).

3. The petrochemical centrifugal pump polishing device according to claim 2, wherein the transmission structure comprises a drive bevel gear (12), the drive bevel gear (12) is fixedly connected to the outer wall of the transmission shaft (11), a driven bevel gear (13) is fixedly connected to the outer wall of the rotation shaft, and the drive bevel gear (12) is in meshed connection with the driven bevel gear (13).

4. The petrochemical centrifugal pump polishing device according to claim 3, wherein the clamping assembly comprises a second bearing seat (21), the second bearing seat (21) is arranged on the inner wall of one side of the groove (5), a bidirectional threaded rod (22) is connected with the second bearing seat (21) in a rotating mode, a knob (23) is arranged at the tail end of the bidirectional threaded rod (22), a movable seat (24) is arranged on the outer wall of the bidirectional threaded rod (22), and an arc-shaped clamping plate (25) is arranged at one end, facing the centrifugal pump shell, of the movable seat (24).

5. The petrochemical centrifugal pump polishing device according to claim 4, wherein a guide rod (14) is fixedly connected in the groove (5), and the outer wall of the guide rod (14) is in sliding connection with the movable seat (24).

6. The petrochemical centrifugal pump polishing device according to claim 5, wherein the lifting assembly comprises a support plate (15), the support plate (15) and a third bearing seat (16) are arranged at the upper end of the polishing table (1), a screw rod (17) is connected in the third bearing seat (16) in a rotating mode, a second rotating motor (26) is arranged at the upper end of the support plate (15), an output shaft of the second rotating motor (26) is connected with the upper end of the screw rod (17), a lifting seat (18) is connected with the outer wall of the screw rod (17) through threads, and an electric push rod (6) is arranged in the lifting seat (18).

7. The petrochemical centrifugal pump polishing device according to claim 6, wherein a sliding rail (20) is arranged at the vertical part of the support plate (15), a sliding block (19) matched with the sliding rail (20) is arranged at one end of the movable seat (24), and the sliding block (19) is in sliding connection with the sliding rail (20).