CN214583164U

CN214583164U - Coaxiality measuring instrument

Info

Publication number: CN214583164U
Application number: CN202120155163.2U
Authority: CN
Inventors: 邹志海; 张军; 梅阳; 唐乐; 王瑞金; 陈战勇; 毕晓惠
Original assignee: Petrochina Co Ltd
Current assignee: Petrochina Co Ltd
Priority date: 2021-01-20
Filing date: 2021-01-20
Publication date: 2021-11-02
Anticipated expiration: 2031-01-20

Abstract

The utility model provides a axiality measuring apparatu. The axiality measuring apparatu includes gauge, coupling mechanism and the magnetism gauge stand that connects in order, and the magnetism gauge stand includes: the connecting mechanism is connected to the main board; the two auxiliary boards are rotatably connected to two sides of the main board and buckled towards one side far away from the connecting mechanism, and the surfaces of one sides, far away from the connecting mechanism, of the main board and the auxiliary boards are magnetic. The utility model provides an among the prior art magnetic gauge stand have difficult absorbent problem.

Description

Coaxiality measuring instrument

Technical Field

The utility model relates to a measuring equipment technical field particularly, relates to a axiality measuring apparatu.

Background

In the process of installing and overhauling the machine, the measurement of the coaxiality is very important work, and the measurement of the coaxiality is used for controlling the coaxiality error of a measured axis of the shaft part to a reference axis. In the construction process, the coaxiality of the shaft, a bearing box, a sealing cavity and other parts needs to be measured, otherwise, a large stress is generated at the position where the coaxiality exceeds the standard, the normal work of the shaft, the bearing and other parts on the shaft is seriously influenced, extra power consumption is consumed, the vibration or damage of the whole machine and the foundation are caused, even equipment damage is caused, and the fire and explosion accidents are caused.

The coaxiality measurement is used for controlling the coaxiality error of a measured axis of the shaft part to a reference axis. The accuracy of the coaxiality check is related to whether the machine can normally operate, and is particularly important for machines operating at high speed. At present, the coaxiality of a sealed cavity is measured in the construction process, a V-shaped universal magnetic meter and a dial indicator are usually installed on the shaft diameter of a mechanical sealing part for measurement, but the space of the sealed cavity is narrow, the size of a common V-shaped universal magnetic meter seat is large, the installation and adjustment process is complex, the construction efficiency is greatly reduced, and the pump with the small part size cannot be measured. In addition, after the universal magnetic meter seat is adjusted to a measurable angle, the deflection of the meter frame causes inaccurate measured data, and the error of the coaxiality is increased. In addition, when the V-shaped universal magnetic gauge stand is used in the construction process, the fact that the magnetic area of the gauge stand is small and the gauge stand is in a fixed shape, and the surface of a workpiece is irregular in shape is often found, so that the magnetic gauge stand cannot be attracted to the surface of the workpiece.

That is to say, the magnetic gauge stand in the prior art has the problem of difficult adsorption.

SUMMERY OF THE UTILITY MODEL

A primary object of the present invention is to provide a coaxiality measuring apparatus for solving the problem of the magnetic gauge stand in the prior art that is not easy to be adsorbed.

In order to achieve the above object, the utility model provides a coaxiality measuring instrument, including the measuring meter, coupling mechanism and the magnetism gauge stand that connect in order, the magnetism gauge stand includes: the connecting mechanism is connected to the main board; the two auxiliary boards are rotatably connected to two sides of the main board and buckled towards one side far away from the connecting mechanism, and the surfaces of one sides, far away from the connecting mechanism, of the main board and the auxiliary boards are magnetic.

Further, at least one side of the auxiliary board has a notch, and the main board includes: a plate body; the connecting arm, the connecting arm be two, and two connecting arm settings are on a set of side that the plate body is relative, and the connecting arm stretches into in the breach and with the breach joint, and the accessory plate can take place relative rotation with the connecting arm.

Furthermore, the coaxiality measuring instrument further comprises a plurality of cylindrical pins, and the cylindrical pins are arranged between the side wall of the notch and the connecting arm and are abutted against the side wall of the notch and the connecting arm, so that the angle between the auxiliary board and the main board can be conveniently adjusted.

Further, the lateral wall and the cylindric lock butt that the linking arm is connected with the plate body, the lateral wall that the linking arm and plate body interval set up and the lateral wall interval of breach set up.

Furthermore, the inner walls of the connecting arm and the notch are magnetic, the side wall of the connecting arm connected with the plate body is abutted to the side wall of the notch, and the side wall of the connecting arm and the side wall of the notch are arranged at intervals.

Further, the auxiliary plate is hinged to the main plate.

Furthermore, the auxiliary board is connected with the main board through a hinge.

Furthermore, the main board and the auxiliary board are magnets; or the surfaces of one sides of the main board and the auxiliary board far away from the connecting mechanism are provided with magnetic strips.

Further, the connection mechanism includes: the supporting plate section is connected with the main plate; the connecting plate section is in pivot connection with the supporting plate section, and a measuring meter is arranged at one end, far away from the supporting plate section, of the connecting plate section.

Furthermore, the coaxiality measuring instrument further comprises a micro-motion adjusting bolt, the connecting plate section is connected with the micro-motion adjusting bolt, the main plate is provided with a thread adjusting hole, and the micro-motion adjusting bolt is in thread fit with the thread adjusting hole so as to adjust an included angle between the connecting plate section and the supporting plate section.

By applying the technical scheme of the utility model, the coaxiality measuring instrument comprises a measuring meter, a connecting mechanism and a magnetic meter seat which are connected in sequence, the magnetic meter seat comprises a main board and two auxiliary boards, and the connecting mechanism is connected on the main board; the two auxiliary boards are rotatably connected to two sides of the main board and buckled towards one side far away from the connecting mechanism, and the surfaces of one sides, far away from the connecting mechanism, of the main board and the auxiliary boards are magnetic.

By arranging the magnetic gauge stand in the form of the main board and the two auxiliary boards, the two auxiliary boards can rotate relative to the main board, so that the two auxiliary boards are in pivot connection with the main board, when the magnetic gauge stand is connected to a workpiece, the angle between the two auxiliary boards and the main board can be adjusted, so that the magnetic gauge stand can be installed on different workpieces, and the universality of the magnetic gauge stand is improved. Meanwhile, the surface of one side, far away from the connecting mechanism, of the main board and the two auxiliary boards is provided with magnetism, so that the magnetic gauge stand can be adsorbed on a workpiece. Because the angle between two accessory plates and the mainboard is adjustable, and then make accessory plate and mainboard have the adsorption affinity at the angle of difference to the work piece, be convenient for the magnetism gauge stand adsorb on the work piece, guarantee the stable work of magnetism gauge stand, and then guarantee the stability of axiality measuring apparatu work and measuring accuracy.

Drawings

The accompanying drawings, which form a part of the present application, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention and not to limit the invention. In the drawings:

fig. 1 shows a schematic structural view of a coaxiality measuring instrument according to an alternative embodiment of the present invention; and

fig. 2 shows a schematic structural view of the magnetic watch base of fig. 1.

Wherein the figures include the following reference numerals:

10. a measuring meter; 20. a connecting mechanism; 21. a support plate segment; 22. a connecting plate section; 30. a magnetic watch base; 40. a main board; 41. a plate body; 42. a connecting arm; 50. an auxiliary plate; 51. a notch; 60. a cylindrical pin; 70. a fine motion adjusting bolt; 80. a magnetic strip.

Detailed Description

It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. The present invention will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.

It is noted that, unless otherwise indicated, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs.

In the present application, where the contrary is not intended, the use of directional words such as "upper, lower, top and bottom" is generally with respect to the orientation shown in the drawings, or with respect to the component itself in the vertical, perpendicular or gravitational direction; likewise, for ease of understanding and description, "inner and outer" refer to the inner and outer relative to the profile of the components themselves, but the above directional words are not intended to limit the invention.

In order to solve the problem that there is difficult absorption in the magnetic gauge stand among the prior art, the utility model provides a axiality measuring apparatu.

As shown in fig. 1 to 2, the coaxiality measuring instrument includes a measuring instrument 10, a connecting mechanism 20 and a magnetic meter base 30 which are connected in sequence, the magnetic meter base 30 includes a main board 40 and two auxiliary boards 50, and the connecting mechanism 20 is connected to the main board 40; the two auxiliary boards 50 are rotatably connected to two sides of the main board 40, and the two auxiliary boards 50 are engaged with each other at a side away from the connecting mechanism 20, and the surfaces of the main board 40 and the auxiliary boards 50 at a side away from the connecting mechanism 20 have magnetism.

By providing the magnetic bezel 30 in the form of the main plate 40 and the two auxiliary plates 50 such that the two auxiliary plates 50 can rotate relative to the main plate 40, such that the two auxiliary plates 50 are pivotally connected to the main plate 40, the angle between the two auxiliary plates 50 and the main plate 40 can be adjusted when the magnetic bezel 30 is attached to a workpiece, such that the magnetic bezel 30 can be mounted to different workpieces, increasing the versatility of the magnetic bezel 30. Meanwhile, magnetism is provided on the surfaces of the main board 40 and the two auxiliary boards 50 on the side away from the connecting mechanism 20, so that the magnetic gauge stand can be attracted to the workpiece. Because the angle between the two auxiliary boards 50 and the main board 40 is adjustable, the auxiliary boards 50 and the main board 40 have adsorption force on the workpiece at different angles, so that the magnetic gauge stand 30 is conveniently adsorbed on the workpiece, the stable work of the magnetic gauge stand 30 is ensured, and the working stability and the measuring accuracy of the coaxiality measuring instrument are further ensured.

In this application, the magnetic gauge stand 30 can rotate freely by 180 degrees, and can be adsorbed on steel structures such as planes, V-shaped groove surfaces and curved surfaces, the minimum diameter of the adsorbed shaft is 15 millimeters, and the maximum diameter of the shaft is not limited. The main board 40 and the two auxiliary boards 50 increase the adsorption area of the magnetic part, so that the magnetic gauge stand 30 is more firmly adsorbed. The coaxiality measuring instrument has the advantages of small weight and small volume, can be used in the construction of a large pump or a small pump, greatly improves the working efficiency, and can be used smoothly in the construction of pumps with small volumes because the traditional measuring instruments for measuring at certain positions cannot be used.

Example one

As shown in fig. 2, at least one side of the auxiliary board 50 has a notch 51, the main board 40 includes a board body 41 and two connecting arms 42, the two connecting arms 42 are disposed on a set of opposite sides of the board body 41, the connecting arms 42 extend into the notch 51 and are engaged with the notch 51, and the auxiliary board 50 can rotate relative to the connecting arms 42. The auxiliary board 50 is detachably connected with the main board 40, the connecting arm 42 is connected with the auxiliary board 50 in a clamping mode to guarantee the stability of connection between the connecting arm 42 and the auxiliary board 50, meanwhile, the auxiliary board 50 and the connecting arm 42 rotate relatively to adjust the included angle between the auxiliary board 50 and the main board 40, and therefore the magnetic gauge stand 30 can be adsorbed on workpieces in different shapes, and the universality of the magnetic gauge stand 30 is improved.

As shown in fig. 2, the coaxiality measuring instrument further includes a plurality of cylindrical pins 60, and the cylindrical pins 60 are disposed between the side walls of the notches 51 and the connecting arm 42, and abut against the side walls of the notches 51 and the connecting arm 42, so as to adjust the angle between the auxiliary board 50 and the main board 40. The arrangement of the cylindrical pin 60 makes the auxiliary board 50 and the main board 40 easier to rotate, reduces friction between the auxiliary board 50 and the main board 40, facilitates adjustment of an angle between the auxiliary board 50 and the main board 40, and enables the magnetic gauge stand 30 to be quickly adsorbed on a workpiece.

It should be noted that both sides of the cylindrical pin 60 are fixed by countersunk socket head cap screws.

As shown in fig. 2, the side wall of the connecting arm 42 connected to the plate body 41 abuts against the cylindrical pin 60, and the side wall of the connecting arm 42 spaced from the plate body 41 and the side wall of the notch 51 are spaced apart. Or, cylindrical pins 60 are provided at the upper and lower sidewalls of the connecting arm 42 so that the angle between the auxiliary board 50 and the main board 40 can be adjusted. The side wall of the connecting arm 42 spaced from the plate body 41 and the side wall of the notch 51 are spaced from each other to increase the range of the included angle between the auxiliary board 50 and the main board 40.

Alternatively, the main plate 40 and the auxiliary plate 50 are magnets. Therefore, the main plate 40 and the auxiliary plate 50 are magnetic, the magnetic range between the main plate 40 and the auxiliary plate 50 is increased, and the magnetic gauge stand 30 can be conveniently adsorbed to different workpieces.

In the embodiment shown in fig. 2, the main board 40 and the auxiliary board 50 are provided with magnetic strips 80 on the side surfaces thereof away from the connection mechanism 20. The arrangement makes the main board 40 and the auxiliary board 50 have magnetism only on one side surface far away from the connecting mechanism 20, so that the magnetic strip 80 is only adsorbed with the workpiece, the adsorption effect of the magnetic gauge stand 30 on other structural members can be reduced, and the working stability of the magnetic gauge stand 30 is ensured.

As shown in fig. 1, the connection mechanism 20 includes a support plate section 21 and a connection plate section 22, the support plate section 21 is connected with the main plate 40; the connection plate section 22 is pivotally connected to the support plate section 21, and the end of the connection plate section 22 remote from the support plate section 21 is provided with the meter 10. The pivotal connection of the supporting plate section 21 and the connecting plate section 22 can adjust the included angle between the supporting plate section 21 and the connecting plate section 22, so as to adjust the position and the angle of the measuring meter 10 and ensure the working stability of the measuring meter 10.

As shown in fig. 1, the coaxiality measuring apparatus further includes a fine adjustment bolt 70, the connecting plate section 22 is connected with the fine adjustment bolt 70, the main plate 40 has a threaded adjustment hole, and the fine adjustment bolt 70 is in threaded fit with the threaded adjustment hole to adjust an included angle between the connecting plate section 22 and the supporting plate section 21. The micro-adjusting bolt 70 can support the connecting plate section 22 to ensure that the included angle between the connecting plate section 22 and the supporting plate section 21 is not changed in the working process. The micro-adjusting bolt 70 is arranged in this way, after the coaxiality measuring instrument is assembled in place, the included angle between the connecting plate section 22 and the supporting plate section 21 can be changed by adjusting the position of the micro-adjusting bolt 70, and then the position and the angle of the measuring meter 10 are finely adjusted, so that the measuring accuracy and the working stability of the coaxiality measuring instrument are ensured. The arrangement of the micro-adjusting bolt 70 increases the measuring angle of the coaxiality measuring instrument, thereby adjusting the measuring diameter range and carrying out the conversion of the axial measuring direction and the radial measuring direction.

The coaxiality measuring instrument is adsorbed on the shaft, when the measuring instrument 10 is aligned to the zero position at the uppermost part, and the meter value is displayed to be-0.02 mm after the measuring instrument is rotated by 180 degrees, so that the deflection value of the coaxiality measuring instrument is only 0.01 mm, the coaxiality error can reach 0.01 mm, and the measuring precision can meet the requirement of maintenance.

Example two

The difference from the first embodiment is that the connecting arm 42 is connected to the notch 51 in a different manner.

In the present embodiment, the connecting arm 42 and the inner wall of the notch 51 have magnetism, the side wall of the connecting arm 42 connected to the plate body 41 abuts against the side wall of the notch 51, and the side wall of the connecting arm 42 spaced from the plate body 41 and the side wall of the notch 51 are spaced apart. This arrangement ensures the tightness of the connection between the main board 40 and the two auxiliary boards 50, and also facilitates the adjustment of the included angle between the main board 40 and the auxiliary boards 50.

EXAMPLE III

The difference from the first embodiment is that the main board 40 and the auxiliary board 50 are connected in a different manner.

In the present embodiment, the auxiliary board 50 is hinged to the main board 40. This arrangement prevents the main board 40 and the two auxiliary boards 50 from being separated from each other, and increases the tightness of the connection between the main board 40 and the auxiliary boards 50.

Optionally, the auxiliary board 50 is hinged to the main board 40. This ensures a tight connection between the main board 40 and the auxiliary board 50, while facilitating adjustment of the angle between the main board 40 and the auxiliary board 50.

It is obvious that the above described embodiments are only some of the embodiments of the present invention, and not all of them. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts shall belong to the protection scope of the present invention.

It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments according to the present application. As used herein, the singular is intended to include the plural unless the context clearly dictates otherwise, and it should be further understood that the terms "comprises" and/or "comprising," when used in this specification, specify the presence of features, steps, operations, devices, components, and/or combinations thereof.

It should be noted that the terms "first," "second," and the like in the description and claims of this application and in the drawings described above are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the application described herein are capable of operation in sequences other than those illustrated or described herein.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A coaxiality measuring instrument comprising a measuring instrument (10), a connecting mechanism (20), and a magnetic gauge stand (30) connected in this order, the magnetic gauge stand (30) comprising:

a main board (40), the connecting mechanism (20) being connected to the main board (40);

two auxiliary boards (50), wherein the two auxiliary boards (50) are rotatably connected to two sides of the main board (40), the two auxiliary boards (50) are buckled to one side far away from the connecting mechanism (20), and the surfaces of one sides of the main board (40) and the auxiliary boards (50) far away from the connecting mechanism (20) are magnetic.

2. The coaxiality measuring instrument according to claim 1, wherein at least one side of the auxiliary plate (50) has a notch (51), and the main plate (40) includes:

a plate body (41);

the connecting arms (42) are two, the two connecting arms (42) are arranged on a group of opposite side edges of the plate body (41), the connecting arms (42) extend into the notches (51) and are clamped with the notches (51), and the auxiliary plate (50) and the connecting arms (42) can rotate relatively.

3. The coaxiality measuring instrument according to claim 2, further comprising a plurality of cylindrical pins (60), wherein the cylindrical pins (60) are disposed between the side walls of the notch (51) and the connecting arm (42) and abut against the side walls of the notch (51) and the connecting arm (42) so as to adjust an angle between the auxiliary plate (50) and the main plate (40).

4. The coaxiality measuring instrument according to claim 3, wherein a side wall of the connecting arm (42) connected to the plate body (41) abuts against the cylindrical pin (60), and a side wall of the connecting arm (42) spaced from the plate body (41) and a side wall of the notch (51) are spaced.

5. The coaxiality measuring instrument according to claim 2, wherein the connecting arm (42) and the inner wall of the notch (51) have magnetism, the side wall of the connecting arm (42) connected to the plate body (41) abuts against the side wall of the notch (51), and the side wall of the connecting arm (42) spaced from the plate body (41) and the side wall of the notch (51) are spaced apart.

6. The coaxiality gauge according to claim 1, wherein the auxiliary plate (50) is hinged to the main plate (40).

7. The coaxiality measuring instrument according to claim 6, wherein the auxiliary plate (50) is hinge-connected to the main plate (40).

8. The coaxiality measuring instrument according to any one of claims 1 to 7,

the main plate (40) and the auxiliary plate (50) are magnets; or

The main board (40) and the auxiliary board (50) are provided with magnetic strips (80) on the surfaces of one sides far away from the connecting mechanism (20).

9. The coaxiality measuring instrument according to any one of claims 1 to 7, wherein the connection mechanism (20) includes:

a support plate section (21), the support plate section (21) being connected with the main plate (40);

the measuring instrument comprises a connecting plate section (22), the connecting plate section (22) is in pivot connection with the supporting plate section (21), and one end, far away from the supporting plate section (21), of the connecting plate section (22) is provided with the measuring instrument (10).

10. The coaxiality measuring instrument according to claim 9, further comprising a fine adjustment bolt (70), wherein the connecting plate section (22) is connected with the fine adjustment bolt (70), wherein the main plate (40) has a threaded adjustment hole, and wherein the fine adjustment bolt (70) is in threaded engagement with the threaded adjustment hole to adjust an included angle between the connecting plate section (22) and the supporting plate section (21).