Variable-stroke unit centering tool

Abstract

The utility model relates to the technical field of centering tools, in particular to a variable-stroke unit centering tool which comprises unit rotors on the two sides, half couplings are in threaded connection with the outer sides of the unit rotors, a threaded adapter is in threaded connection with the head of the unit rotor on one side, a transmission joint is inserted into the threaded adapter, and the transmission joint is connected with an extension joint. A detachable main turning rod is inserted in the extension section, a T-shaped guide rail perpendicular to the extension section is fixed to the end, away from the transmission section, of the extension section, the T-shaped guide rail is connected with a sliding block set in a sliding mode, a side face dial indicator perpendicular to the axis of the extension section is fixed to the sliding block set, and an end face dial indicator arranged in the axis direction of the extension section is further fixed to the sliding block set. When the centering work is carried out, only one set of centering tool needs to be arranged, not only is the number of random tools reduced, but also the standardization degree of the design of the centering tools of different units is improved, the universality of the tools is improved, and the working intensity of workers is relieved.

Description

TECHNICAL FIELD

[0001] The utility model relates to a centering tool technical field, concretely is a variable stroke unit centering tool. BACKGROUND

[0002] In recent years with the implementation of the oil chemical industry etc. energy efficiency, equipment demand is prosperous, steam turbine, compressor not only power is bigger and bigger, the delivery quantity and the specification and the model also increase greatly, when carrying out assembly, often use a kind of centering tool to be applied to the alignment of oil chemical industry etc. steam turbine and single-shaft multistage centrifugal compressor.

[0003] But in actual working process, with the traditional random tool design mode, several different centering tools are designed for a unit, not only increase the workload of designers, but also improve the manufacturing cost of random tool, and it is difficult to measure the skew and offset at the same time. UTILITY MODEL CONTENTS

[0004] In order to overcome the above-mentioned defects of prior art, the utility model provides a variable stroke unit centering tool.

[0005] To achieve the above object, the utility model provides the following technical scheme: a variable stroke unit centering tool, including both sides machine rotor, the machine rotor outside is connected with half coupling, one side machine rotor head is connected with threaded adapter, the threaded adapter is connected with transmission joint, the transmission joint is connected with extension joint;The transmission joint side wall is provided with two through holes, and the inside is inserted with detachable main disc car lever, the extension joint is fixed with perpendicular T-shaped guide rail away from the transmission joint one end, the T-shaped guide rail is slidably connected with slider group, the slider group is fixed with perpendicular to the extension joint shaft center side surface dial gauge, the side surface dial gauge measuring end abuts the half coupling side away from the transmission joint one side;The slider group is also fixed with end face dial gauge along the extension joint shaft center direction, and the end face dial gauge abuts the half coupling end face away from the transmission joint one side towards the transmission joint direction.

[0006] As a further preferred embodiment of the utility model, the extension joint includes a sleeve and a telescopic tube, the sleeve is fixedly connected with the transmission joint through a connecting bolt, the telescopic tube is inserted into the sleeve and attached thereto, and the sleeve side wall is threadedly connected with a positioning bolt, and the positioning bolt tip abuts the telescopic tube.

[0007] The telescopic part is matched with a small gap to have a certain damping feeling, avoid excessive adjustment, and is fixed by the positioning bolt.

[0008] As a further preferred embodiment of the utility model, the positioning bolt is symmetrically arranged with respect to the shaft center of the telescopic tube.

[0009] The stability and precision of the telescopic pipe are improved by the above arrangement to reduce the deviation.

[0010] As a further preferred embodiment of the utility model, the telescopic pipe is fixed with a connecting plate away from the transmission joint side, the connecting plate is circular, and a T-shaped guide rail is bolted to the circular surface of the connecting plate.

[0011] The stability of the T-shaped guide rail is improved by the arrangement of the connecting plate.

[0012] As a further preferred embodiment of the utility model, the slider group comprises an adjustable slider and an extension block, the adjustable slider is slidingly connected to the T-shaped guide rail, the side dial gauge is inserted into the adjustable slider, slider bolts and dial gauge fixing bolts are threadedly connected to the two sides of the adjustable slider, the tip of the slider bolt abuts against the T-shaped guide rail, and the dial gauge fixing bolt abuts against the side dial gauge.

[0013] The position of the dial gauge is conveniently adjusted by the above arrangement.

[0014] As a further preferred embodiment of the utility model, the adjustable sliders are arranged in pairs and located on the other side of the slider group, and the adjustable sliders are inserted with side dial gauges.

[0015] The stability and accuracy of the centering are improved by the above arrangement to improve the measurement times.

[0016] As a further preferred embodiment of the utility model, two through holes are formed in the sleeve along the radial direction, and a detachable auxiliary turning rod is inserted into the sleeve.

[0017] The turning of the turning joint and the extension joint is facilitated by the above arrangement, and two people can simultaneously operate to turn.

[0018] Technical effects and advantages of the utility model:

[0019] 1. The utility model is applied to the centering of steam turbines and single-shaft multistage centrifugal compressors in petrochemical industry, etc., the rotor shaft head and the coupling of different units are connected by the arrangement of the one-side threaded adapter, the problem of needing to replace the whole device repeatedly is avoided, and the cost of the centering tool is reduced.

[0020] 2. The extension joint is suitable for the centering of devices with different spacing, and the problem of insufficient length of the centering device is solved, and the universality of the centering device is improved.

[0021] 3. The top dial gauge and the side dial gauge are arranged, the deflection and deviation of the half coupling can be measured and judged at the same time by turning, and the measurement accuracy is improved.

[0022] In summary, through the arrangement of the above structure, only one set of centering tool is needed when centering work is performed, which not only reduces the number of random tools, but also improves the standardization degree of centering tool design for different units, provides the universality of the tool, and reduces the work intensity of employees. BRIEF DESCRIPTION OF DRAWINGS

[0023] Figure 1 It is an installation structure diagram of the centering tool of the variable stroke unit of the utility model.

[0024] Figure 2 It is a structure diagram of the centering tool of the variable stroke unit of the utility model.

[0025] Figure 3 It is a right view of the centering tool of the variable stroke unit of the utility model.

[0026] The figure sign is: 1, unit rotor; 2, half shaft coupling; 3, threaded adapter; 4, transmission section; 5, main disc turning lever; 6, connecting bolt; 7, extension section; 8, end face dial indicator; 9, side face dial indicator; 10, T-shaped guide rail; 11, positioning bolt; 12, slider group; 13, extension block; 501, auxiliary disc turning lever; 701, connecting plate; 702, sleeve; 703, telescopic pipe; 1201, adjustable slider; 1202, slider bolt; 1203, dial indicator fixing bolt. DETAILED DESCRIPTION

[0027] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.

[0028] Refer to the drawings Figures 1-3As shown, a variable stroke unit centering fixture includes unit rotors 1 on both sides. A half-coupling 2 is threadedly connected to the outer side of each unit rotor 1. A threaded adapter 3 is threadedly connected to the head of one side of the unit rotor 1. The threaded adapter 3 is rotatably connected to a transmission joint 4, which is connected to an extension joint 7. Two through holes are provided on the side wall of the transmission joint 4, into which a detachable main drive rod 5 is inserted. A T-shaped guide rail 10 is fixed at the end of the extension joint 7 away from the transmission joint 4. A slider assembly 12 is slidably connected to the T-shaped guide rail 10. A side dial indicator 9, perpendicular to the axis of the extension joint 7, is fixed on the slider assembly 12. The measuring end of the side dial indicator 9 abuts against the side of the half-coupling 2 away from the transmission joint 4. An end face dial indicator 8, arranged along the axis of the extension joint 7, is also fixed on the slider assembly 12. The end face dial indicator 8 abuts against the end face of the half-coupling 2 facing the transmission joint 4 away from the transmission joint 4.

[0029] like Figure 2 As shown in this embodiment of the utility model, the extension section 7 includes a sleeve 702 and a telescopic tube 703. The sleeve 702 is fixedly connected to the transmission section 4 by a connecting bolt 6. The telescopic tube 703 is inserted into the sleeve 702 and fits against it. A positioning bolt 11 is threadedly connected to the side wall of the sleeve 702, and the tip of the positioning bolt 11 abuts against the telescopic tube 703. The telescopic part adopts a small clearance fit to give it a certain damping feel, avoid over-adjustment, and is fixed by the positioning bolt 11. There are two positioning bolts 11, which are symmetrically arranged with respect to the axis of the telescopic tube 703. The above arrangement improves the stability and accuracy of the telescopic tube 703 to reduce offset. A connecting plate 701 is fixed to the side of the telescopic tube 703 away from the transmission section 4. The connecting plate 701 is circular, and a T-shaped guide rail 10 is bolted to its circular surface. The arrangement of the connecting plate 701 improves the stability of the T-shaped guide rail 10.

[0030] like Figure 2 and Figure 3 As shown in this embodiment of the utility model, the slider assembly 12 includes an adjustable slider 1201 and an extension block 13. The adjustable slider 1201 is slidably connected to the T-shaped guide rail 10. The side dial indicator 9 is inserted into the adjustable slider 1201. The two sides of the adjustable slider 1201 are threadedly connected with slider bolts 1202 and dial indicator fixing bolts 1203. The tip of the slider bolt 1202 abuts against the T-shaped guide rail 10, and the dial indicator fixing bolt 1203 abuts against the side dial indicator 9. The above arrangement facilitates the adjustment of the dial indicator position.

[0031] like Figure 2 and Figure 3As shown in the utility model embodiment, the adjustable sliding block 1201 is arranged in pairs and located on the other side of the sliding block group 12, and the adjustable sliding block 1201 is inserted with the side dial gauge 9, and the above arrangement improves the measurement frequency to improve the stability and accuracy of the centering.

[0032] In the working process of the utility model, the two adjustable sliding blocks 1201 can measure two positions at the same time during the rotation, thereby improving the measurement accuracy.

[0033] As Figure 2 As shown in the utility model embodiment, the sleeve 702 is provided with two through holes in the radial direction, and a detachable auxiliary turning rod 501 is inserted into the sleeve 702, and the above arrangement facilitates the auxiliary rotation of the rotating section and the extension section 7, realizes the rotation of two persons at the same time, and avoids the difficulty in rotation caused by excessive compression.

[0034] In the working process of the utility model, the threaded adapter 3 can be replaced according to the threaded end of the unit rotor 1, when the distance between the two unit rotors 1 to be centered is too long, the extension section 7 is replaced by disassembling the connecting bolt 6, and when the side half-coupling 2 to be measured is too large, the T-shaped guide rail 10 can be replaced to cooperate with the centering work after exceeding the sliding limit.

[0035] In the working process of the utility model, 1, the threaded adapter 3 is arranged on one side of the unit rotor 1; 2, the transmission section 4 is inserted; 3, the extension section 7 is extended, so that the measuring end of the dial gauge 8 abuts against the end face of the half-coupling 2 on the other side, and the position of the sliding block group 12 is adjusted so that the side dial gauge 9 abuts against the side face of the half-coupling 2, and the positioning bolt 11 is fixed; 4, the main turning rod 5 is inserted and rotated, then the main turning rod 5 is pulled out, and then inserted and rotated, so that the side dial gauge 9 and the end dial gauge 8 measure under the abutting condition, and the values are observed to center.

[0036] The above is only a preferred embodiment of the utility model, and is not used to limit the utility model, and any modification, equivalent replacement, improvement, etc. within the spirit and principles of the utility model should be included in the protection scope of the utility model.

Claims

1. A variable stroke machine matched tooling, comprising two sides of machine rotor, the outside of the machine rotor is screwed with a half coupling, characterized in that: One side of the unit rotor head is threadedly connected with a threaded adapter, the threaded adapter is connected with a transmission section through insertion and rotation, the transmission section is connected with an extension section; The transmission section side wall is provided with two through holes, a detachable main disc turning rod is inserted in the through holes, a T-shaped guide rail perpendicular to the extension section is fixed at the end of the extension section away from the transmission section, a slider group is slidingly connected with the T-shaped guide rail, a side dial gauge perpendicular to the extension section axis is fixed on the slider group, and a measuring end of the side dial gauge abuts against the side surface of the half-coupling away from the transmission section; an end dial gauge is also fixed on the slider group and arranged along the extension section axis, and an end surface of the end dial gauge abutting against the half-coupling away from the transmission section is arranged in the direction of the transmission section.

2. The variable stroke unit centering tool according to claim 1, wherein the extension section comprises a sleeve and a telescopic pipe, the sleeve is fixedly connected with the transmission section through connecting bolts, the telescopic pipe is inserted into the sleeve and attached to the sleeve, positioning bolts are threadedly connected with the sleeve side wall, and the tips of the positioning bolts abut against the telescopic pipe.

3. The variable stroke unit centering tool according to claim 2, wherein the positioning bolts are symmetrically arranged relative to the axis of the telescopic pipe.

4. The variable stroke unit centering tool according to claim 3, wherein the telescopic pipe is fixed with a connecting plate at the side away from the transmission section, the connecting plate is circular, and a T-shaped guide rail is bolted to the circular surface of the connecting plate.

5. The variable stroke unit centering tool according to claim 4, wherein the slider group comprises an adjustable slider and an extension block, the adjustable slider is slidingly connected with the T-shaped guide rail, the side dial gauge is inserted into the adjustable slider, and slider bolts and dial gauge fixing bolts are threadedly connected with the two sides of the adjustable slider, the tips of the slider bolts abut against the T-shaped guide rail, and the dial gauge fixing bolts abut against the side dial gauge.

6. The variable stroke unit centering tool according to claim 5, wherein the adjustable sliders are arranged in pairs and located at the other side of the slider group, and the adjustable sliders are inserted with side dial gauges.

7. The variable stroke unit centering tool according to claim 3, wherein the sleeve is provided with two through holes in the radial direction, and detachable auxiliary disc turning rods are inserted into the through holes.

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