Vertical centrifugal pump long shaft machining anti-vibration device

Abstract

The utility model discloses a vertical centrifugal pump long shaft machining anti-vibration device which comprises a bottom plate, clamping assemblies used for clamping the two sides of a long shaft machining part are installed on the bottom plate in a sliding mode, the distance can be adjusted according to the head end and the tail end of a long shaft, the long shaft can be supported, the clamping assemblies can be clamped on the two sides of the machining end of the long shaft, and therefore the long shaft can be machined conveniently. According to the long shaft grooving device, the stability of a long shaft is improved during grooving, then the machining precision of the long shaft is guaranteed, vibration is avoided, and through the arranged box body, a first lead screw, a first motor and a supporting base, one connecting ring in a clamping assembly can move, and then through cooperation of the other connecting ring connected with a connecting assembly, the machining efficiency is improved. And the long shaft can be prevented from deviating while the machining position of the long shaft can be adjusted, so that the clamping assembly is kept in a clamping state all the time.

Description

TECHNICAL FIELD

[0001] The utility model relates to pump body part machining technical field, and the specific field is a vertical centrifugal pump long shaft machining anti-vibration device. BACKGROUND

[0002] The multistage vertical centrifugal pump is generally composed of a shell, a first transmission shaft and a plurality of impellers, and the plurality of impellers are all installed on the first transmission shaft, therefore, the first transmission shaft of the multistage vertical centrifugal pump is relatively long in overall length.

[0003] Through the search, the application number for a vertical centrifugal pump long shaft machining anti-vibration device is 202410662657.8, wherein the long shaft is clamped by four sets of limiting wheels, the long shaft is supported and fixed, the bending deformation of the long shaft during machining is prevented, and the vibration of the long shaft is prevented to reduce the machining accuracy;

[0004] However, the slot machining of the machining cutter on the long shaft is a continuous process, a plurality of slots need to be machined on the same surface, the position adjustment of the long shaft is not convenient when cutting slots at different positions, and the position adjustment process is ensured without deviation, and after the long shaft is clamped at the machining end, the end of the long shaft is in a suspended state, causing the end of the long shaft to vibrate during slot cutting, which also affects the slot cutting accuracy, therefore, a vertical centrifugal pump long shaft machining anti-vibration device is provided. UTILITY MODEL CONTENTS

[0005] The utility model aims at providing a vertical centrifugal pump long shaft machining anti-vibration device to solve the problems in the above background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical scheme: a vertical centrifugal pump long shaft machining anti-vibration device, including the bottom plate, the bottom plate is slidably installed with the clamping assembly for clamping the both sides of the long shaft machining part, and the spacing can be adjusted according to the first and last ends of the long shaft, for supporting the long shaft.

[0007] The clamping assembly includes two connecting rings, the connecting ring is provided with a chamber distributed in a ring shape, the chamber is provided with a pneumatic clamping block, and a buffer spring is arranged between the chamber and the pneumatic clamping block, and the outer part of the connecting ring is provided with a pneumatic connector corresponding to the chamber.

[0008] Preferably, the bottom of one of the connecting rings is provided with a support seat, the support seat is slidably arranged in the box installed on the bottom plate, a first lead screw is screwed on the support seat, a first motor is installed on the outside of the box to drive the rotation of the first lead screw, and a connecting assembly is installed on the support seat to move the other connecting ring.

[0009] Preferably, the connecting assembly comprises a support block mounted at the bottom of another connecting ring, a support plate mounted on the support seat, the support block being slidingly arranged on the support plate, a second motor mounted on the support seat, and a second screw rod mounted at the extending end of the second motor and screwed with the support block.

[0010] Preferably, the second screw rod and the first screw rod are longitudinally arranged and parallel to each other in the box.

[0011] Compared with the prior art, the device has the advantages that: the clamping assembly can be clamped on both sides of the machining end of the long shaft, so that the stability of the long shaft is increased when the groove is cut, and the machining precision is ensured, and the vibration is avoided; the movement of one connecting ring in the clamping assembly is realized through the box, the first screw rod, the first motor and the support seat, and the cooperation of the other connecting ring connected through the connecting assembly is realized, so that the machining position of the long shaft can be adjusted, the long shaft can be prevented from deviating, the clamping assembly can always be kept in the clamping state, and the position of the other connecting ring can be adjusted through the connecting assembly, so that the end of the long shaft is clamped, and the vibration phenomenon of the end is further avoided. BRIEF DESCRIPTION OF DRAWINGS

[0012] Fig. 1 It is a schematic view of the overall structure of the device;

[0013] Fig. 2 It is a sectional view of the overall structure of the device;

[0014] Fig. 3 It is a schematic view of the internal structure of the connecting ring.

[0015] In the figure: 1-bottom plate, 2-clamping assembly, 21-connecting ring, 22-chamber, 23-pneumatic clamping block, 24-buffer spring, 25-pneumatic connector, 3-support seat, 4-box, 5-first screw rod, 6-first motor, 7-support block, 8-support plate, 9-second motor, 10-second screw rod, 11-connecting assembly. DETAILED DESCRIPTION

[0016] The technical solutions in the embodiments of the device will be clearly and completely described below with reference to the drawings in the embodiments of the device. Obviously, the described embodiments are only part of the embodiments of the device, rather than all the embodiments. Based on the embodiments in the device, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the device.

[0017] Please refer to Figs. 1-3The utility model provides a technical scheme: a vertical centrifugal pump long shaft machining anti -vibration device, including bottom plate 1, the bottom plate 1 is slidably installed for the clamping assembly 2 of the clamping long shaft machining part both sides, and the interval can be adjusted according to the first, last end of long shaft, for the long shaft support,

[0018] The clamping assembly 2 includes two connecting rings 21, the connecting ring 21 is provided with annular distribution's chamber 22, the chamber 22 is provided with pneumatic clamping block 23, and the chamber 22 is provided with buffer spring 24 between pneumatic clamping block 23, the outside of connecting ring 21 is provided with pneumatic connector 25 at the chamber 22, and the chamber 22 is cylinder.

[0019] One of the connecting ring 21's bottom is installed with support seat 3, and the support seat 3 is slidably arranged in the box 4 installed on the bottom plate 1, the first lead screw 5 is screwed on the support seat 3, the first motor 6 of driving the first lead screw 5 rotation is installed on the outside of box 4, the support seat 3 is installed with the connecting assembly 11 of driving another connecting ring 21 movement.

[0020] The connecting assembly 11 includes another connecting ring 21's bottom and is installed with support block 7, the support plate is installed on the support seat 3, the support block 7 is slidably arranged on the support plate 8, the second motor 9 is installed on the support seat 3, the second lead screw 10 is installed on the extension end of second motor 9, and the second lead screw 10 is screwed with support block 7.

[0021] The second lead screw 10 in the box 4 and the first lead screw 5 are longitudinally arranged and parallel to each other.

[0022] The clamping end of multiple pneumatic clamping blocks 23 is matched with the axial end of long shaft and is cross grain.

[0023] Working principle: first, according to the long axis needs the processing of the part, adjust the spacing between the two adjacent connecting ring 21 between the clamping assembly 2, start the first motor 6, the first motor 6 drive first screw 5 rotation, make support seat 3 in the box 4 slide, so as to adjust the spacing between the two connecting ring 21, then put the long axis into the clamping assembly 2, and through the pneumatic connector 25 connected to the air supply system to the chamber 22 inflation, drive pneumatic clamping block 23 clamping long axis, through the buffer spring 24, can slow down the speed of pneumatic clamping block 23 clamping long axis, avoid pneumatic clamping block 23 in the chamber 22 fast inflation case with long axis fast contact collision, then according to the position of the first and last end of the long axis adjustment clamping assembly 2 on the other connecting ring 21 position, through the start of the second motor 9, the second motor 9 drive second screw 10 rotation, make support block 7 on the support plate 8 slide, adjust the position of the connecting ring 21, make it to the first end or the end of the long axis, then through the pneumatic connector 25 connected to the air supply system to the chamber 22 inflation, drive pneumatic clamping block 23 clamping long axis, avoid in the process of processing the first and last end of the long axis appear suspended, so as to avoid the long axis in the process of processing appear tremor, and in the adjustment of processing position, without disassembly adjustment long axis position to avoid processing position deviation, only need to adjust the clamping assembly 2 clamping long axis first and last end of the connecting ring 21 position can be realized.

[0024] Although the embodiments of the present application have been shown and described, it is to be understood that for the purpose of the present application, the changes, modifications, replacements and variations of the embodiments can be made by those skilled in the art without departing from the principles and spirit of the present application, the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A vertical centrifugal pump long shaft machining anti-vibration device, characterized in that: The application relates to a long shaft supporting device, which comprises a bottom plate, a clamping assembly for clamping two sides of a long shaft machining part is slidably arranged on the bottom plate, and the distance between the two sides can be adjusted according to the first end and the last end of the long shaft. The clamping assembly comprises two connecting rings, cavities are arranged in the connecting rings in a ring shape, pneumatic clamping blocks are arranged in the cavities, buffer springs are arranged between the cavities and the pneumatic clamping blocks, and pneumatic joints are arranged on the outer portions of the connecting rings and correspond to the cavities.

2. The vertical centrifugal pump long shaft anti-chattering device according to claim 1, characterized in that: The bottom of one of the connecting rings is provided with a supporting seat, the supporting seat is slidably arranged in a box arranged on the bottom plate, a first screw rod is screwed on the supporting seat, a first motor is arranged on the outer portion of the box and drives the first screw rod to rotate, and a connecting assembly for driving the other connecting ring to move is arranged on the supporting seat.

3. The vertical centrifugal pump long shaft anti-chatter machining device according to claim 2, characterized in that: The connecting assembly comprises a supporting block arranged at the bottom of the other connecting ring, a supporting plate is arranged on the supporting seat, the supporting block is slidably arranged on the supporting plate, a second motor is arranged on the supporting seat, a second screw rod is arranged on the extending end of the second motor, and the second screw rod is screwed with the supporting block.

4. The vertical centrifugal pump long shaft anti-chatter machining device according to claim 3, characterized in that: The second screw rod and the first screw rod are arranged longitudinally and parallel to each other in the box.

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