CN210282020U

CN210282020U - Fastening device for machining centrifugal pump shell

Info

Publication number: CN210282020U
Application number: CN201921039700.6U
Authority: CN
Inventors: 滕止戈
Original assignee: Fristam Pumps Taicang Co ltd
Current assignee: Fristam Pumps Taicang Co ltd
Priority date: 2019-07-05
Filing date: 2019-07-05
Publication date: 2020-04-10
Anticipated expiration: 2029-07-05

Abstract

The utility model belongs to the field of centrifugal pump processing devices, in particular to a fastening device for processing a centrifugal pump shell, aiming at the problems that the prior fixing to the shell is not stable, the shell is easy to generate deviation and the product quality is low, the following proposal is provided, which comprises a base, wherein an installation cavity is arranged on the base, the top inner wall of the installation cavity is fixedly connected with a motor, the output shaft of the motor is fixedly connected with a rotating shaft, the bottom of the rotating shaft is rotationally connected with the bottom inner wall of the installation cavity, a movable plate is connected with the rotating shaft by screw threads, and both sides of the movable plate are fixedly connected with connecting rods, the utility model has reasonable structure, the power for driving the movable plate to move by the motor can clamp and fix two arc-shaped clamping plates to the shell body, the operation is convenient, and the fixing mode is more fastened compared, the displacement of the shell body during processing can be effectively prevented, so that the product quality is influenced.

Description

Fastening device for machining centrifugal pump shell

Technical Field

The utility model relates to a centrifugal pump processingequipment technical field especially relates to a fastener is used in centrifugal pump casing processing.

Background

The centrifugal pump is operated by utilizing the rotation of an impeller to make water generate centrifugal motion, before the water pump is started, a pump shell and a water suction pipe are filled with water, then a motor is started, a pump shaft drives the impeller and the water to perform high-speed rotation motion, the water generates centrifugal motion, is thrown to the outer edge of the impeller and flows into a water pressure pipeline of the water pump through a flow channel of a volute-shaped pump shell.

At present, when a centrifugal pump shell is processed and used, the shell needs to be fixed, but the existing fixing to the shell is not stable generally, the shell is easy to deviate, and the product quality is low, so that a fastening device for processing the centrifugal pump shell is provided, and the fastening device is used for solving the problems.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the problem that the fixing of the shell is not stable generally, the shell is easy to deviate, the low product quality is caused, and the fastening device for processing the centrifugal pump shell is provided.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

a fastening device for processing a centrifugal pump shell comprises a base, wherein an installation cavity is arranged on the base, a motor is fixedly connected to the inner wall of the top of the installation cavity, a rotating shaft is fixedly connected to the output shaft of the motor, the bottom of the rotating shaft is rotatably connected with the inner wall of the bottom of the installation cavity, a moving plate is in threaded connection with the rotating shaft, connecting rods are fixedly connected to the two sides of the moving plate, a screw nut is fixedly connected to the end, away from each other, of each connecting rod, two ball screws are symmetrically and rotatably connected to the inner wall of the bottom of the installation cavity, the rotating shaft is located between the two ball screws, the screw nut is in threaded connection with the ball screws, a rotating rod is fixedly connected to the top of each ball screw, the top end of the rotating rod penetrates through the inner wall of the top of the installation cavity and, the top of the base is symmetrically and slidably connected with two sliding plates, one side of each sliding plate is fixedly connected with a rack, the gear is meshed with the racks, the top of the base is fixedly clamped with a shell body which is positioned between the two racks, one side of the two racks close to each other is fixedly connected with a push plate, the bottom of the pushing plate is connected with the top of the base in a sliding way, the sides of the two pushing plates close to each other are fixedly connected with arc-shaped clamping plates, and one side of the two arc-shaped clamping plates, which is close to each other, is tightly attached to the outer side of the shell body, and the moving plate is driven by a motor to move, can make two arc splint press from both sides the casing body tight fixedly, the simple operation, traditional fixed mode is more fastened in the fixed mode comparison, can prevent effectively that the casing body from taking place the displacement man-hour to influence product quality.

Preferably, two limiting plates of installation cavity interior symmetry fixedly connected with, two limiting plates are located two screw nut's both sides respectively, and the spacing groove has all been seted up to one side that two limiting plates are close to each other, and the equal fixedly connected with slide bar in one side that two screw nut kept away from each other, the one end of slide bar extend to the spacing inslot and with one side inner wall sliding connection of spacing groove, set up the limiting plate, slide in the spacing groove through the slide bar, can prevent that screw nut from rotating along with ball, cause working error.

Preferably, two telescopic links are symmetrically and fixedly connected to the inner wall of the bottom of the installation cavity, the tops of the two telescopic links are respectively and fixedly connected with the bottom of the movable plate, the telescopic links are arranged, the movable plates and the inner wall of the bottom of the installation cavity can be prevented from being attached to each other, and a buffering effect can be started.

Preferably, the inboard fixedly connected with rubber pad of arc splint, the thickness of rubber pad is two to three centimetres, sets up the rubber pad, can make the arc splint more closely laminate casing body, makes fixed fastening more, also can prevent the scratch casing body simultaneously.

Preferably, the bottom of base symmetry fixedly connected with two landing legs, the height of landing leg is between one meter to one meter two, sets up the landing leg, can have certain height with the base, convenient operation.

The utility model discloses in, a fastener is used in processing of centrifugal pump casing, owing to set up the motor, can make the movable plate remove, the movable plate removes and to make lead screw nut remove, and then can make ball rotate, ball rotates and to make gear revolve, can make the rack remove like this, rack removal can drive the slurcam removal, the slurcam removal can make two arc splint remove to the direction that is close to each other, and then can fix the casing body, prevent that the casing body from taking place the displacement man-hour, thereby influence product quality.

Due to the fact that the limiting plate is arranged, the sliding rod slides in the limiting groove, the screw nut can be prevented from rotating along with the ball screw, and working errors are avoided.

The utility model discloses rational in infrastructure, drive the power that the movable plate removed through the motor, can make two arc splint press from both sides the casing body tight fixedly, the simple operation, traditional fixed mode is compared to the fixed mode and more fastens, can prevent effectively that the casing body from taking place the displacement man-hour to influence product quality.

Drawings

Fig. 1 is a schematic front view of a fastening device for machining a centrifugal pump casing according to the present invention;

fig. 2 is a schematic main sectional structural view of a fastening device for machining a centrifugal pump casing according to the present invention;

fig. 3 is a schematic view of a local overlooking structure of the fastening device for machining a centrifugal pump casing according to the present invention.

In the figure: the device comprises a base 1, a mounting chamber 2, a motor 3, a rotating shaft 4, a moving plate 5, a connecting rod 6, a screw nut 7, a ball screw 8, a rotating rod 9, a sliding plate 10, a rack 11, a gear 12, a pushing plate 13, an arc clamping plate 14, a shell body 15, a limiting plate 16, a limiting groove 17, a sliding rod 18, a telescopic rod 19, a rubber pad 20 and a supporting leg 21.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.

Example one

Referring to fig. 1-3, a fastening device for processing a centrifugal pump shell comprises a base 1, a mounting cavity 2 is arranged on the base 1, a motor 3 is fixedly connected to the inner wall of the top of the mounting cavity 2, a rotating shaft 4 is fixedly connected to the output shaft of the motor 3, the bottom of the rotating shaft 4 is rotatably connected to the inner wall of the bottom of the mounting cavity 2, a moving plate 5 is connected to the rotating shaft 4 through a thread, connecting rods 6 are fixedly connected to both sides of the moving plate 5, screw nuts 7 are fixedly connected to the ends of the two connecting rods 6 away from each other, two ball screws 8 are symmetrically and rotatably connected to the inner wall of the bottom of the mounting cavity 2, the rotating shaft 4 is positioned between the two ball screws 8, the screw nuts 7 are in threaded connection with the ball screws 8, a rotating rod 9 is fixedly connected to the top of the ball screws 8, and the top, the fixed cover in top of bull stick 9 is equipped with gear 12, base 1's top symmetry sliding connection has two sliding plates 10, one side fixedly connected with rack 11 of sliding plate 10, gear 12 meshes with rack 11 mutually, base 1's top fixing clip is equipped with casing body 15, casing body 15 is located between two rack 11, the equal fixedly connected with slurcam 13 in one side that two rack 11 are close to each other, the bottom of slurcam 13 and base 1's top sliding connection, the equal fixedly connected with arc splint 14 in one side that two slurcam 13 are close to each other, and the outside that one side that two arc splint 14 are close to each other is closely laminated with casing body 15.

The utility model discloses in, two limiting plates 16 of symmetry fixedly connected with in the installation cavity 2, two limiting plates 16 are located two lead screw nut 7's both sides respectively, and spacing groove 17 has all been seted up to one side that two limiting plates 16 are close to each other, and the equal fixedly connected with slide bar 18 in one side that two lead screw nut 7 kept away from each other, slide bar 18's one end extend to in the spacing groove 17 and with one side inner wall sliding connection of spacing groove 17.

The utility model discloses in, two telescopic links 19 of symmetry fixedly connected with on the bottom inner wall of installation cavity 2, the top of two telescopic links 19 respectively with the bottom fixed connection of movable plate 5.

In the utility model, the inner side of the arc-shaped clamping plate 14 is fixedly connected with a rubber pad 20, and the thickness of the rubber pad 20 is two to three centimeters.

The utility model discloses in, two landing legs 21 of base 1's bottom symmetry fixedly connected with, landing leg 21 highly be one meter to between one meter two.

Example two

Referring to fig. 1-3, a fastening device for processing a centrifugal pump shell comprises a base 1, a mounting cavity 2 is arranged on the base 1, a motor 3 is welded on the inner wall of the top of the mounting cavity 2, a rotating shaft 4 is welded on the output shaft of the motor 3, the bottom of the rotating shaft 4 is rotatably connected with the inner wall of the bottom of the mounting cavity 2, a moving plate 5 is in threaded connection with the rotating shaft 4, connecting rods 6 are welded on both sides of the moving plate 5, screw nuts 7 are welded on the ends of the two connecting rods 6 away from each other, two ball screws 8 are symmetrically and rotatably connected on the inner wall of the bottom of the mounting cavity 2, the rotating shaft 4 is positioned between the two ball screws 8, the screw nuts 7 are in threaded connection with the ball screws 8, a rotating rod 9 is welded on the top of the ball screws 8, the top end of the rotating rod 9 penetrates through the inner wall of, the top of the base 1 is symmetrically and slidably connected with two sliding plates 10, one side of each sliding plate 10 is welded with a rack 11, a gear 12 is meshed with the rack 11, a shell body 15 is clamped at the top of the base 1, the shell body 15 is positioned between the two racks 11, pushing plates 13 are welded on the sides, close to each other, of the two racks 11, the bottom of each pushing plate 13 is slidably connected with the top of the base 1, arc-shaped clamping plates 14 are welded on the sides, close to each other, of the two pushing plates 13, the outer sides of the shell bodies 15 are tightly attached to each other, the motor 3 drives the moving plate 5 to move, the two arc-shaped clamping plates 14 can clamp and fix the shell bodies 15, the operation is convenient and fast, the fixing mode is more firm compared with the traditional fixing mode, the displacement of the shell bodies 15 during processing can be effectively prevented, and the product quality is influenced, because the motor 3 is arranged, the movable plate 5 can be moved to move the screw nut 7, and further the ball screw 8 can be rotated, the ball screw 8 can be rotated to rotate the gear 12, so that the rack 11 can be moved, the rack 11 can be moved to drive the push plate 13 to move, the push plate 13 can be moved to move the two arc-shaped clamping plates 14 to the directions close to each other, and further the shell body 15 can be fixed, the shell body 15 is prevented from being displaced during processing, thereby influencing the product quality, because the limiting plate 16 is arranged, the screw nut 7 can be prevented from rotating along with the ball screw 8 by the sliding of the sliding rod 18 in the limiting groove 17, and causing working errors, the utility model has reasonable structure, the power for driving the movable plate 5 to move through the motor 3 can enable the two arc-shaped clamping plates 14 to clamp and fix the shell body 15, the simple operation, traditional fixed mode is more fastened in the fixed mode comparison, can prevent effectively that casing body 15 from taking place the displacement when processing to influence product quality.

The utility model discloses in, the symmetrical welding has two limiting plates 16 in the installation cavity 2, two limiting plates 16 are located two lead screw nut 7's both sides respectively, spacing groove 17 has all been seted up to one side that two limiting plates 16 are close to each other, slide bar 18 has all been welded to one side that two lead screw nut 7 kept away from each other, slide bar 18's one end extend to in spacing groove 17 and with one side inner wall sliding connection of spacing groove 17, limiting plate 16 has been set up, slide bar 18 slides in spacing groove 17, can prevent that lead screw nut 7 from rotating along with ball 8, cause the work error.

The utility model discloses in, the symmetrical welding has two telescopic links 19 on the bottom inner wall of installation cavity 2, and the top of two telescopic links 19 welds with the bottom of movable plate 5 respectively, sets up telescopic link 19, can prevent to laminate between the movable plate 5 and between the bottom inner wall of installation cavity 2 to can start the cushioning effect.

The utility model discloses in, the inboard of arc splint 14 has rubber pad 20 through gluing, and the thickness of rubber pad 20 is two to three centimetres, sets up rubber pad 20, can make arc splint 14 more closely laminate casing body 15, makes fixed fastening more, also can prevent scratch casing body 15 simultaneously.

The utility model discloses in, base 1's bottom symmetric welding has two landing legs 21, and landing leg 21 highly be one meter to one meter between two, sets up landing leg 21, can have certain height with base 1, convenient operation.

In the utility model, when the housing body 15 needs to be fixed, the motor 3 is started at first, the output shaft of the motor 3 drives the rotating shaft 4 to rotate, because the rotating shaft 4 is in threaded connection with the moving plate 5, the rotating shaft 4 rotates to drive the moving plate 5 to descend, the moving plate 5 descends to drive the connecting rod 6 to descend, the connecting rod 6 descends to drive the screw nut 7 to descend, because the screw nut 7 is in threaded connection with the ball screw 8, the ball screw 8 rotates due to the movement of the screw nut 7, the rotating rod 9 rotates due to the rotation of the ball screw 8, the rotating rod 9 rotates due to the rotation of the gear 12, the rack 11 moves due to the rotation of the gear 12, and then the two arc-shaped clamping plates 14 move towards the direction close to each other through the pushing plate 13, so that the housing body 15 can be fixed on the base 1, and the displacement of the housing body 15 can, thereby affecting product quality.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. The fastening device for processing the centrifugal pump shell comprises a base (1) and is characterized in that an installation cavity (2) is arranged on the base (1), a motor (3) is fixedly connected to the inner wall of the top of the installation cavity (2), a rotating shaft (4) is fixedly connected to the output shaft of the motor (3), the bottom of the rotating shaft (4) is rotatably connected with the inner wall of the bottom of the installation cavity (2), a moving plate (5) is connected to the rotating shaft (4) in a threaded manner, connecting rods (6) are fixedly connected to the two sides of the moving plate (5), a screw nut (7) is fixedly connected to one end, away from each other, of the two connecting rods (6), two ball screws (8) are symmetrically rotatably connected to the inner wall of the bottom of the installation cavity (2), the rotating shaft (4) is located between the two ball screws (8), and the screw nut (7) is in threaded connection with the, the top of the ball screw (8) is fixedly connected with a rotating rod (9), the top end of the rotating rod (9) penetrates through the inner wall of the top of the mounting cavity (2) and extends to the top of the base (1), a gear (12) is fixedly sleeved on the top of the rotating rod (9), the top of the base (1) is symmetrically and slidably connected with two sliding plates (10), one side of each sliding plate (10) is fixedly connected with a rack (11), the gear (12) is meshed with the rack (11), the top of the base (1) is fixedly clamped with a shell body (15), the shell body (15) is positioned between the two racks (11), one side, close to each other, of the two racks (11) is fixedly connected with a pushing plate (13), the bottom of the pushing plate (13) is slidably connected with the top of the base (1), one side, close to each other, of the two pushing plates (13) is fixedly connected with an arc-shaped clamping plate (14, and one side of the two arc-shaped clamping plates (14) close to each other is tightly attached to the outer side of the shell body (15).

2. The fastening device for machining the centrifugal pump shell according to claim 1, wherein two limiting plates (16) are symmetrically and fixedly connected in the installation cavity (2), the two limiting plates (16) are respectively located at two sides of the two lead screw nuts (7), limiting grooves (17) are formed in the sides, close to each other, of the two limiting plates (16), sliding rods (18) are fixedly connected to the sides, far away from each other, of the two lead screw nuts (7), and one ends of the sliding rods (18) extend into the limiting grooves (17) and are in sliding connection with the inner wall of one side of the limiting grooves (17).

3. The fastening device for processing the centrifugal pump shell as claimed in claim 1, wherein two telescopic rods (19) are symmetrically and fixedly connected to the inner wall of the bottom of the mounting chamber (2), and the tops of the two telescopic rods (19) are respectively and fixedly connected with the bottom of the moving plate (5).

4. The fastening device for processing the centrifugal pump shell as claimed in claim 1, wherein a rubber pad (20) is fixedly connected to the inner side of the arc-shaped clamping plate (14), and the thickness of the rubber pad (20) is two to three centimeters.

5. The fastening device for machining the centrifugal pump shell according to claim 1, wherein two legs (21) are symmetrically and fixedly connected to the bottom of the base (1), and the height of each leg (21) is one meter to two meters.