CN219132027U

CN219132027U - Shaft centering device of coupler

Info

Publication number: CN219132027U
Application number: CN202223226291.5U
Authority: CN
Inventors: 钟城; 李东兴; 杨西周; 刘宝军; 吴鄂; 张虎林; 裴莉莉; 宋豪; 顾燕; 刘井坤; 闫伟
Original assignee: Sinopec Oilfield Service Corp; Sinopec Petroleum Engineering and Construction Zhongyuan Corp
Current assignee: Sinopec Oilfield Service Corp; Sinopec Petroleum Engineering and Construction Zhongyuan Corp
Priority date: 2022-12-02
Filing date: 2022-12-02
Publication date: 2023-06-06
Anticipated expiration: 2032-12-02

Abstract

The utility model relates to the technical field of equipment debugging, in particular to a shaft centering device of a coupler. Including the support, the straight portion upper end of support is fixed with a plurality of fixed blocks, runs through a plurality of fixed blocks with the parallel screw rod of straight portion of support, screw rod and fixed block threaded connection, the blind hole has been seted up on the straight portion of support, the axial direction of blind hole is parallel with the straight portion of support, be fixed with the solid fixed ring on with the screw rod, the last annular of having seted up of solid fixed ring, the annular internal rotation is connected with the swivel, the swivel lower extreme is fixed with the stabilizer bar of L shape, the straight portion slip grafting of stabilizer bar is in the blind hole, can dismantle fixedly connected with centering frame on the screw rod. According to the utility model, by arranging the stabilizer bar, under the cooperation of the straight part of the stabilizer bar and the blind hole, the stability of the centering frame in the rotating process can be increased, and the accuracy of a measuring result can be improved.

Description

Shaft centering device of coupler

Technical Field

The utility model relates to the technical field of equipment debugging, in particular to a shaft centering device of a coupler.

Background

The accurate shaft centering is an important step in the working of rotary machines such as a machine pump, a large-sized compressor unit, a turbine unit and the like, and is a key link for guaranteeing quality in the process of installation, inspection and maintenance of the rotary machines. The purpose of shaft alignment is to make the axes of two rotating shafts collinear, i.e. the central lines of the driving shaft and the driven shaft are on the same straight line, so as to ensure the normal operation of the rotating equipment and prolong the service life of the rotating equipment.

The existing shaft centering is mainly carried out by adopting a dial indicator method, and mainly comprises a dial indicator, a meter frame and a magnetic support, wherein the dial indicator is arranged on the meter frame of the magnetic support, the magnetic meter frame is adsorbed on a coupler on a driving shaft during shaft centering, and a contact of the dial indicator is contacted with the surface of the coupler on a driven shaft. The driving shaft is rotated, the driving shaft and the driven shaft are enabled to synchronously rotate, data of the dial indicator rotating along with the driving shaft and at different angles are recorded, the obtained data are calculated, whether the axes of the driving shaft and the driven shaft are collinear or not is judged according to the calculated data, and the magnetic meter frame and the dial indicator have some defects when rotating along with the driving shaft and the driven shaft: when the magnetic meter frame and the dial indicator rotate to 90 degrees, 180 degrees and 270 degrees, the dial indicator cannot read data accurately because a certain amount of deflection is generated by the weight of the magnetic meter frame and the dial indicator.

The existing shaft centering device of the coupling is generally provided with a bracket which can be fixed on the coupling of the pump shaft and fixes the dial indicator on the bracket, so that the problems are avoided. For example, patent document CN201822252237.5 entitled "a device for aligning concentricity of diaphragm coupling", discloses a support type Zhao Zheng device which fixes a support on a connection disc of a base shaft and adjusts radial and axial dimensions of the alignment device according to radial dimensions and axial distances of a half coupling measured as needed. However, when the distance between the connecting disc on the base shaft and the half coupling is long, the axial adjusting rod of the device lacks a proper stabilizing device, and the axial adjusting rod, the radial dial indicator and the axial dial indicator still jump in the process of rotating and aligning, so that measurement errors occur.

In the patent, the inclination angle of the end face of the half coupling is measured through an axial dial indicator, in the measuring process, the axial dial indicator rotates for one circle, then the maximum value and the minimum value displayed by the axial dial indicator are recorded, when the maximum value appears in the axial dial indicator, a mark is made on the half coupling corresponding to the axial dial indicator, when the minimum value appears in the axial dial indicator, a mark is made on the half coupling corresponding to the axial dial indicator, then the inclination angle of the end face of the half coupling is calculated according to the difference value between the maximum value and the minimum value appearing in the axial dial indicator, and then the adjustment of the half coupling is performed according to the calculated inclination angle. And after the half coupler is adjusted, the axial dial indicator rotates for one circle, and whether the values of the axial dial indicator are consistent is observed. Therefore, the adjustment of the end face of the half coupling is troublesome, and the state of the half coupling cannot be intuitively reflected when the inclination angle of the end face of the half coupling is adjusted.

Disclosure of Invention

The technical problem to be solved by the utility model is that the coupler shaft centering device can effectively avoid the jump of the dial indicator in the coupler centering process, can improve the accuracy of the measurement result, is convenient for measuring the axial jump of the end face of the half coupler, and can intuitively know the state of the half coupler when the end face of the half coupler is adjusted.

In order to achieve the above purpose, the technical scheme provided by the utility model is as follows:

the utility model provides a shaft coupling axle centering device, including the support that is the shape of falling L, the straight portion upper end of support is fixed with a plurality of fixed blocks, the screw rod parallel with the straight portion of support runs through a plurality of fixed blocks, screw rod and fixed block threaded connection, the blind hole has been seted up on the straight portion of support, the axial direction of blind hole is parallel with the straight portion of support, be fixed with the solid fixed ring on the screw rod, the last annular of having seted up of solid fixed ring, the annular internal rotation is connected with the swivel, the swivel lower extreme is fixed with the stabilizer bar of L shape, the straight portion slip grafting of stabilizer bar is in the blind hole, detachable fixedly connected with centering frame on the screw rod.

Specifically, centering frame includes the connector of threaded connection on the screw rod, and the connector is tightly supported solid fixed ring, is fixed with the percentage table on the connector, and the vertical setting of percentage table.

The centering frame comprises a connector which is connected with a screw rod in a threaded manner, the connector is tightly abutted to a fixing ring, an inverted L-shaped meter frame is fixed on the connector, a dial indicator is fixed on the straight part of the upper end of the meter frame, two vertically symmetrical dial indicators are fixed on the vertical part of the meter frame, the dial indicators on the straight part of the meter frame are vertically arranged, and two dial indicators on the vertical part of the meter frame are horizontally arranged.

Specifically, the straight part and the vertical part of the bracket are connected through a diagonal brace.

Specifically, a long groove is formed in the vertical portion of the support.

Specifically, the screw on one side of the fixed block is connected with a locking nut in a threaded manner, and the locking nut abuts against the fixed block on one side of the fixed block.

Compared with the prior art, the utility model has the beneficial effects that:

1. according to the utility model, by arranging the stabilizer bar, under the cooperation of the straight part of the stabilizer bar and the blind hole, the stability of the centering frame in the rotating process can be increased, and the accuracy of a measuring result can be improved.

2. The radial dimension and the axial distance of the half coupling can be measured according to the needs, the radial and axial positions of the centering frame can be adjusted, different centering frames can be replaced according to the needs, and the device is wide in application range and convenient to use.

3. The axial runout of the end face of the half coupler is measured by using the two horizontally arranged dial indicators, and when the half coupler is adjusted, the real-time state of the half coupler can be intuitively known according to the display numerical values of the percentages horizontally arranged, so that the half coupler can be conveniently adjusted to a proper position.

Drawings

Fig. 1 is a schematic diagram of a first embodiment of the present utility model.

Fig. 2 is a schematic diagram of a second embodiment of the present utility model.

The names of the parts in the drawings are as follows:

1. support frame

2. Diagonal bracing

3. Blind hole

4. Stabilizer bar

5. Fixing ring

6. Swivel ring

7. Fixed block

8. Lock nut

9. Connector head

10. Dial gauge

11. Bolt

12. Meter frame

13. Screw rod

14. Connecting disc

15. A half coupling.

Detailed Description

Example 1

As shown in fig. 1, a shaft centering device for a coupling comprises an inverted L-shaped bracket 1, wherein a straight part and a vertical part of the bracket 1 are connected through a diagonal brace 2. The vertical part of the bracket 1 is provided with a long groove.

The upper end of the straight part of the bracket 1 is fixedly provided with a plurality of fixing blocks 7, a screw rod 13 parallel to the straight part of the bracket 1 penetrates through the plurality of fixing blocks 7, the screw rod 13 is in threaded connection with the fixing blocks 7, a locking nut 8 is in threaded connection with the screw rod 13 on one side of the fixing blocks 7, and the locking nut 8 abuts against the fixing blocks 7 on one side of the locking nut.

A blind hole 3 is formed in the straight part of the bracket 1, and the axial direction of the blind hole 3 is parallel to the straight part of the bracket 1. The screw 13 is fixedly provided with a fixed ring 5, the fixed ring 5 is provided with a ring groove, the ring groove is rotationally connected with a swivel 6, and the lower end of the swivel 6 is fixedly provided with an L-shaped stabilizer bar 4. The straight part of the stabilizer bar 4 is inserted in the blind hole 3 in a sliding way, and the screw 13 is detachably and fixedly connected with a centering frame.

The centering frame comprises a connector 9 which is connected to a screw 13 through threads, the connector 9 is tightly abutted to the fixing ring 5, a dial indicator 10 is fixed on the connector 9, and the dial indicator 10 is vertically arranged.

In the actual use process, when the radial runout of the half coupler 15 on the motor shaft is required to be measured, the vertical part of the bracket 1 is fixed on the connecting disc 14 of the pump shaft through the bolt 11, the position of the connecting head 9 in the axial direction can be adjusted by rotating the screw rod 13, the connecting head 9 is positioned at the outer side of the half coupler 15, then the locking nut 8 is rotated, the screw rod 13 is locked and fixed, then the shaft sleeve of the dial indicator 10 is fixed on the connecting head 9, the dial indicator 10 is kept in a vertical state, the measuring head of the dial indicator 10 is in contact with the outer edge of the half coupler 15, the dial indicator 10 is zeroed, the radial runout of the half coupler 15 is measured through the dial indicator 10, meanwhile, the radial runout position of the half coupler 15 is marked, the radial runout value measured according to the dial indicator 10 and the radial runout position marked on the half coupler 15 is adjusted, and then the position of the motor is concentric with the connecting disc 14 of the pump.

In the rotating process of the support 1, the straight part of the stabilizer bar 4 is matched with the blind hole 3 in a plugging manner, so that the stability of the centering frame can be improved, and the centering frame and the dial indicator 10 can be effectively prevented from shaking.

Example two

As shown in fig. 2, the centering frame comprises a connector 9 in threaded connection with a screw 13, the connector 9 abuts against a fixed ring 5, an inverted L-shaped meter frame 12 is fixed on the connector 9, a dial indicator 10 is fixed on a straight portion at the upper end of the meter frame 12, two vertically symmetrical dial indicators 10 are fixed on a vertical portion of the meter frame 12, the dial indicators 10 on the straight portion of the meter frame 12 are vertically arranged, and the two dial indicators 10 on the vertical portion of the meter frame 12 are horizontally arranged.

When the radial runout and the axial runout of the half coupler 15 are required to be measured simultaneously, the meter frame 12 is fixedly connected with the screw 13 through the connector 9. The vertical part of the bracket 1 is fixed on the connecting disc 14 of the pump shaft through a bolt 11, the position of the meter frame 12 in the axial direction can be adjusted by rotating the screw 13, so that the straight part of the meter frame 12 is positioned at the outer side of the half coupling 15, and then the locking nut 8 is rotated to lock and fix the screw 13. The sleeve of one dial indicator 10 is then secured to the flat portion of the bezel 12 such that the dial indicator 10 on the flat portion of the bezel 12 remains upright. The two dial indicators 10 are fixed on the vertical part of the meter frame 12, so that the two dial indicators 10 on the vertical part of the meter frame 12 are kept in a horizontal state, the measuring heads of the dial indicators 10 on the vertical part of the meter frame 12 are contacted with the end surfaces of the half couplers 15, and the two dial indicators 10 on the vertical part of the meter frame 12 are required to be symmetrical according to the axle center of the half couplers 15.

The dial indicators 10 on the vertical part of the meter frame 12 are zeroed, so that the half-coupling 15 rotates, the axial jumping amount of the half-coupling 15 is measured through the two dial indicators 10 on the vertical part of the meter frame 12, and the axial jumping position of the half-coupling 15 is marked. When one dial gauge 10 on the vertical portion of the gauge stand 12 shows a maximum value, then the other dial gauge 10 on the vertical portion of the gauge stand 12 shows a minimum value. When the runout of the half coupler 15 in the axial direction is adjusted, the real-time state of the half coupler 15 can be intuitively known according to the numerical value displayed by the two-percent meter 10 on the vertical part of the meter frame 12, and when the numerical values displayed by the two-percent meter 10 on the vertical part of the meter frame 12 are equal, the adjustment of the axial runout of the half coupler 15 is completed.

Then, the radial runout of the half coupling 15 is measured by the dial indicator 10 on the flat part of the gauge stand 12, and the radial runout position of the half coupling 15 is marked. The motor position is then adjusted based on the radial runout value measured by the dial indicator 10 and the radial runout position marked on the coupling half 15, so that the coupling half 15 is concentric with the coupling disc 14 of the pump.

The foregoing description of the preferred embodiments of the utility model is not intended to be limiting, but rather is intended to cover all modifications, equivalents, and alternatives falling within the spirit and principles of the utility model.

Claims

1. The utility model provides a shaft coupling axle centering device, including support (1) that is the shape of falling L, a serial communication port, the straight portion upper end of support (1) is fixed with a plurality of fixed blocks (7), screw rod (13) parallel with the straight portion of support (1) run through a plurality of fixed blocks (7), blind hole (3) have been seted up on the straight portion of support (1) screw rod (13) and fixed block (7) threaded connection, the axial direction of blind hole (3) is parallel with the straight portion of support (1), be fixed with solid fixed ring (5) on screw rod (13), gu set up the annular on solid fixed ring (5), the annular internal rotation is connected with swivel (6), swivel (6) lower extreme is fixed with L shape stabilizer bar (4), the straight portion slip grafting of stabilizer bar (4) is in blind hole (3), can dismantle fixedly connected with centering frame on screw rod (13).

2. The shaft coupling shaft centering device according to claim 1, wherein the centering frame comprises a connector (9) which is connected to a screw rod (13) in a threaded mode, the connector (9) abuts against the fixing ring (5), a dial indicator (10) is fixed on the connector (9), and the dial indicator (10) is vertically arranged.

3. The shaft coupling shaft centering device according to claim 1, wherein the centering frame comprises a connector (9) which is connected with a screw (13) in a threaded manner, the connector (9) is tightly abutted against a fixing ring (5), an inverted-L-shaped meter frame (12) is fixed on the connector (9), a dial indicator (10) is fixed on the straight part of the upper end of the meter frame (12), two vertically symmetrical dial indicators (10) are fixed on the vertical part of the meter frame (12), the dial indicators (10) on the straight part of the meter frame (12) are vertically arranged, and the two dial indicators (10) on the vertical part of the meter frame (12) are horizontally arranged.

4. A coupling shaft centering device according to any one of claims 1-3, characterized in that the straight and vertical parts of the bracket (1) are connected by means of a diagonal brace (2).

5. The shaft coupling shaft centering device according to claim 4, wherein the vertical portion of the bracket (1) is provided with a long groove.

6. The shaft centering device for the coupling according to claim 5, wherein a locking nut (8) is connected to a screw (13) on one side of the fixed block (7) in a threaded manner, and the locking nut (8) abuts against the fixed block (7) on one side of the fixed block.