CN220339289U

CN220339289U - Concentricity measuring tool

Info

Publication number: CN220339289U
Application number: CN202321781735.3U
Authority: CN
Inventors: 马亮; 张庆环; 张素金; 王珊珊; 徐进; 马田
Original assignee: China Petroleum and Chemical Corp
Current assignee: China Petroleum and Chemical Corp
Priority date: 2023-07-07
Filing date: 2023-07-07
Publication date: 2024-01-12
Anticipated expiration: 2033-07-07

Abstract

The utility model discloses a concentricity measuring tool, and relates to the technical field of measuring tools. The concentricity measuring tool comprises a guide horizontal ruler, wherein a positioning column is vertically arranged on the guide horizontal ruler, one end face of the positioning column forms a positioning end face matched with a shaft connecting part of a backrest wheel, and an adjusting mechanism for enabling the positioning column to move along the height direction of the guide horizontal ruler is arranged between the positioning column and the guide horizontal ruler. The utility model uses the shaft connecting part of the backrest wheel as a horizontal reference point, thereby effectively improving the convenience and accuracy of the guiding level bar for keeping the level.

Description

Concentricity measuring tool

Technical Field

The utility model belongs to the technical field of measuring tools, and particularly relates to a concentricity measuring tool.

Background

The power of the motor is transmitted to the pump body equipment through the coupler. Because of manufacturing, installation errors, and during daily use, the pump set is often non-concentric due to temperature, load bearing variations, and wear of nonmetallic elastomeric elements. The misalignment of the pump group can be divided into axial misalignment and radial misalignment, and the state of the coupling 5 is shown in fig. 1 and 2 when the axial misalignment and the radial misalignment occur. The coupling 5 is composed of a pair of back wheels, and the back wheels comprise a back wheel main body and a shaft connecting part which is coaxial with the back wheel main body and is used for being connected with a pump shaft.

If the concentricity of the two couplings of the pump set exceeds a specified value, the radial force and the axial force of the equipment shaft are caused to exist simultaneously, so that the pump shaft can generate larger deflection, and the normal operation of the equipment is seriously affected. Such as exceeding the standard of vibration value of equipment, fault breaking of elastic pins, motor burning and the like. The concentricity is well adjusted, the service life of the equipment is long, the operation efficiency is high, and otherwise, the operation efficiency and the service life of the pump are greatly damaged.

The Chinese patent of the utility model with the authorized bulletin number of CN203011330U and the authorized bulletin day of 2013, 6 and 19 discloses a pump concentricity measuring ruler, which comprises a slope measuring feeler gauge, a T-shaped guide horizontal ruler and a radial clearance vernier feeler gauge, wherein a T-shaped guide groove is arranged on a ruler body at one side of the slope measuring feeler gauge along the height direction of the slope measuring feeler gauge; a guide rail corresponding to the T-shaped guide groove is arranged on the T-shaped guide horizontal ruler, and the guide rail is in clearance fit with the T-shaped guide groove; the T-shaped guiding level bar is connected with the inclination measuring feeler gauge through a positioning screw; and a through hole matched with the T-shaped guiding level bar is arranged on the radial clearance vernier clearance gauge, and the T-shaped guiding level bar passes through the through hole and is slidably arranged with the radial clearance vernier clearance gauge.

When the technical scheme is used, the T-shaped guiding level gauge descends to the upper sides of the peripheral surfaces of the two groups of backrest wheels, and the axial clearance and the radial clearance are measured through the inclination measuring clearance gauge and the radial clearance vernier clearance gauge. However, after the machine pump runs for a period of time, due to factors such as installation, bearing, temperature, machine pump running and the like, deformation exists on the peripheral surfaces of the two backrest wheels of the machine pump group, namely, the T-shaped guiding level ruler of the machine pump concentricity measuring ruler in the technical scheme does not work on a horizontal plane, so that real basic data cannot be provided for correcting the concentricity of the machine pump, and the concentricity measurement accuracy of the technical scheme is affected.

Disclosure of Invention

The utility model aims to provide a concentricity measuring tool for solving the technical problem of inaccurate concentricity measurement caused by deformation of a backrest wheel in the prior art.

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

the utility model provides a concentricity measuring tool, includes the direction horizon rule, is provided with the reference column perpendicularly on the direction horizon rule, one end of reference column constitutes and is used for with the axle coupling portion complex location terminal surface of back wheel, be equipped with the adjustment mechanism who makes reference column follow direction of height of the direction horizon rule between reference column and the direction horizon rule.

The beneficial effects are that: the technical scheme is a further improvement on the prior art. When the positioning device is used, an operator can lean against the positioning end face on the positioning column on the upper side of the shaft connecting part of the backrest wheel, and the positioning column can be ensured to be vertical by taking the positioning end face as a standard because the positioning end face is less influenced in the operation process of the pump. Accordingly, the levelness of the guiding level bar can be ensured, and the measurement accuracy of concentricity is improved.

As a further improvement, the adjusting mechanism comprises a slideway positioned on one of the guiding level bar and the positioning column and a limit guiding part positioned on the other.

The beneficial effects are that: the positioning column can move relative to the guiding level bar through the cooperation of the limiting guide part and the slideway.

As a further improvement, the positioning column is provided with a long hole extending along the length direction, and the slide way is formed by the long hole.

The beneficial effects are that: the long holes are processed on the positioning columns to form sliding, so that the production and the processing are convenient.

As a further improvement, the limiting guide part is a positioning bolt, and the positioning bolt penetrates through the long hole and is in threaded connection with the guide horizontal ruler.

The beneficial effects are that: the positioning bolt plays a role in limiting and guiding the slideway, and meanwhile, the positioning bolt is screwed to fix the positioning column and the guiding horizontal ruler with each other, so that the operation is simple and convenient. After the positioning column and the guiding level bar are fixed together, the comparison is conveniently formed during the measurement at other positions

As a further improvement, the positioning bolt is provided with two or more.

The beneficial effects are that: the two positioning bolts can ensure that the positioning column and the guiding level bar are kept vertical at all times.

As a further improvement, the guiding level bar is also provided with a level bar plastic bubble.

The beneficial effects are that: the plastic bubble of the level bar can assist an operator to observe the levelness of the guiding level bar.

As a further improvement, the positioning end surface is parallel to the surface of the guiding level bar, which is close to the backrest wheel.

The beneficial effects are that: the guiding level bar can be ensured to be conveniently adjusted to a horizontal state.

As a further improvement, the guiding level bar is provided with a slope clearance gauge for measuring the end face clearance and a radial vernier measuring gauge for measuring the radial clearance.

The beneficial effects are that: the end face clearance amount and the radial clearance amount are convenient to measure.

As a further improvement, the radial vernier measuring scale slides along the length direction of the guiding horizontal ruler, the radial vernier measuring scale comprises a connecting part of a C-shaped structure and a marking part of a right triangle structure, and the front surface of the marking part is provided with scales.

The beneficial effects are that: the radial vernier measuring scale is pushed to move along the guiding horizontal ruler, and when the inclined plane of the marking part of the radial vernier measuring scale contacts with the end face of the backrest wheel at the lower end, the graduation of the contact position of the inclined plane of the radial vernier measuring scale and the corresponding backrest wheel is the radial clearance.

As a further improvement, the slope clearance gauge slides along the height direction of the guiding level gauge, one end of the slope clearance gauge is provided with a slope, and one end, close to the slope, of the side wall of the slope clearance gauge is provided with scales.

The beneficial effects are that: one side of the slope feeler is stuck on the end face of the backrest wheel, the slope feeler is moved downwards, the slope of the slope feeler touches the end face of the other backrest wheel, and the scale of the contact position between the slope of the slope feeler and the corresponding backrest wheel is the end face clearance.

Drawings

FIG. 1 is a schematic illustration of axial misalignment of a pump stack in accordance with the background of the utility model;

FIG. 2 is a schematic illustration of radial misalignment of a pump stack in accordance with the background of the utility model;

FIG. 3 is a schematic overall structure of embodiment 1 of the present utility model;

FIG. 4 is a schematic view of the structure of the guiding level bar and the positioning column in the embodiment 1 of the present utility model;

FIG. 5 is a schematic view showing the structure of the guiding horizon rule according to the embodiment 1 of the utility model in the bottom view;

FIG. 6 is a schematic view of the structure of the slope plug according to embodiment 1 of the present utility model;

FIG. 7 is a schematic structural view of a radial vernier measuring scale in embodiment 1 of the present utility model;

FIG. 8 is a side view of the radial vernier measuring scale of example 1 of the present utility model;

FIG. 9 is a schematic diagram showing the use of the concentricity measuring tool according to embodiment 1 of the present utility model.

Reference numerals illustrate:

1. guiding a level bar; 11. a guiding level bar body; 12. a guide plate; 13. a guide rail; 14. a first locking screw; 15. plastic bubbles of the level bar; 16. positioning screw holes; 2. a slope feeler; 21. an inclined plane; 22. a guide groove; 3. a radial vernier measuring scale; 31. a marking part; 32. a connection part; 33. a second locking screw; 4. positioning columns; 41. a long hole; 42. positioning bolts; 5. a coupling.

Detailed Description

The present utility model will be described in further detail with reference to the drawings and examples, in order to make the objects, technical solutions and advantages of the present utility model more apparent. It should be understood that the particular embodiments described herein are illustrative only and are not intended to limit the utility model, i.e., the embodiments described are merely some, but not all, of the embodiments of the utility model. The components of the embodiments of the present utility model generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.

The present utility model is described in further detail below with reference to examples.

Specific example 1 provided by the utility model:

referring to fig. 3, a concentricity measuring tool comprises a guiding level bar 1, a slope plug bar 2, a radial vernier measuring bar 3 and a positioning column 4.

Referring to fig. 4 and 5, the guide level 1 includes a guide level body 11 of a long strip-shaped plate structure, a guide plate 12 perpendicular thereto is integrally formed at a middle portion of the guide level body 11, a guide rail 13 of a T-shaped structure is formed at a back side of the guide plate 12, and the guide rail 13 extends along a length direction of the guide plate 12. The guide plate 12 is provided with a first locking screw 14 in threaded engagement therewith. The guiding level body 11 is also fixedly provided with a level plastic bubble 15 for determining the levelness of the guiding level 1.

Referring to fig. 6, one end of the slope feeler 2 is formed with a slope 21, and one end of the sidewall of the slope feeler 2 near the slope 21 is provided with scales. The slope clearance gauge 2 is provided with a guide groove 22 matched with the guide rail, the guide groove 22 extends along the length direction of the slope clearance gauge 2 and penetrates through the slope clearance gauge 2, and the guide rail 13 is positioned in the guide groove 22 and is in sliding fit with the guide groove 22. The head of the first locking screw 14 extends into the guide groove 22 and abuts against the bottom wall of the guide groove 22, thereby fixing the guide level 1 and the slope plug 2.

Referring to fig. 7 and 8, the radial vernier measuring scale 3 includes a connecting portion 32 of a C-shaped structure and a marking portion 31 of a right triangle structure, and the front face of the marking portion 31 is provided with scales. The connecting portion 32 is sleeved on the guiding level bar body 11 and can slide along the length direction of the guiding level bar body 11, one right-angle side of the marking portion 31 is fixed with the connecting portion 32, and the other right-angle side of the marking portion 31 is attached to one side wall of the guiding level bar body 11. The middle part of connecting portion 32 runs through and is provided with the second locking screw 33 rather than screw-thread fit, and the head and the guide level bar body 11 butt of second locking screw 33 to fix radial vernier measuring scale 3 and guide level bar 1.

Referring to fig. 4 and 5, the positioning column 4 is a quadrangular structure, one end face of the positioning column forms a positioning end face, an adjusting mechanism for enabling the positioning column 4 to move along the height direction of the guiding level bar 1 is arranged between the positioning column 4 and the guiding level bar 1, and the adjusting mechanism comprises a slideway arranged on one of the guiding level bar 1 and the positioning column 4 and a limiting guide part arranged on the other.

In this embodiment, the positioning post 4 is provided with a kidney-shaped long hole 41 extending along the length direction thereof, and the long hole 41 forms a slide way in the adjusting mechanism. Two positioning bolts 42 are arranged in the long holes 41, two positioning screw holes 16 are formed in corresponding positions on the guiding level bar body 11, the positioning bolts 42 are in threaded fit with the corresponding positioning screw holes 16, and the two positioning bolts 42 form a limiting guide part in the adjusting mechanism. The positioning bolts 42 can guide the positioning columns 4, the positioning columns 4 can be fixedly connected with the guiding horizon rule body 11 by rotating the positioning bolts 42, and the two positioning bolts 42 can prevent the positioning columns 4 from rotating relative to the guiding horizon rule body 11, so that the positioning columns 4 are vertical to the guiding horizon rule body 11.

Referring to fig. 9, when in use, the positioning column 4 and the guiding horizontal ruler 1 are assembled, then the positioning end face of the positioning column 4 is tightly attached to the connecting part of one backrest wheel and the shaft, and the guiding horizontal ruler 1 is abutted against the upper side of the backrest wheel. The backrest wheel of the coupler is easy to bend, wear or have burrs and the like in the using process, so that the guide horizontal ruler 1 is easy to be attached to the backrest wheel directly, and the guide horizontal ruler 1 cannot be kept horizontal; the connection part of the backrest wheel and the shaft is slightly affected by load and use condition, and a better horizontal reference point can be provided, so that the positioning end surface of the positioning column 4 is abutted with the connection part, and the horizontal level of the guiding level bar 1 can be ensured.

After the operation is finished, the positioning bolt 42 is screwed, so that the positioning column 4 and the guiding horizontal ruler 1 are relatively fixed, the comparison is formed when the guiding horizontal ruler 1 at other positions is measured, and when the guiding horizontal ruler 1 at other positions cannot be tightly attached to the side wall of the backrest wheel, the deformation condition of the backrest wheel is indicated, and the deformation condition needs to be corrected in time. And then the positioning column 4 and the guiding level bar 1 are removed, and the inclination cock gauge 2 and the radial vernier measuring gauge 3 are mounted on the guiding level bar 1. The plane of the inclination gauge 2 is closely attached to the end face of the selected upper horizontal backrest wheel, and descends until the inclined plane 21 touches the end face of the other backrest wheel. At this time, the scale of the contact position between the inclined surface 21 of the inclination gauge 2 and the corresponding backrest wheel is the end face clearance. If the upper horizontal back wheel cannot be found in the above operation, the back wheel is corrected according to the angle between the back wheel and the guide horizon rule 1, and then the above operation is performed.

And then the radial vernier measuring scale 3 is moved along the guiding horizontal scale 1, and when the inclined plane of the marking part 31 of the radial vernier measuring scale 3 touches the end face of the backrest wheel at the lower end, the graduation of the contact position of the inclined plane of the radial vernier measuring scale 3 and the corresponding backrest wheel is the radial clearance.

The operator can also screw the first locking screw 14 and the second locking screw 33 to fix the inclination gauge 2 and the radial vernier measuring gauge 3 with the guiding level bar 1. And reading marks can be made on the inclination feeler gauge 2 and the radial vernier measuring gauge 3, and the concentricity measuring tool can be taken down and the position of the reading mark can be measured by using a vernier caliper for reading.

After the upper data are measured, the concentricity measuring tool is continuously used for measuring the positions of the two sides and the lower side of the coupler level. The operator can monitor the state of the back wheel of the coupling or correct the back wheel according to the measured data.

The specific embodiment 2 provided by the utility model is mainly different from the embodiment 1 in that: in this embodiment, the positioning bolt 42 is provided with one, the guiding horizon rule body 11 is fixedly provided with a limit post, the limit post is arranged in the long hole 41 in a penetrating way, and the limit post and the positioning bolt 42 can keep the positioning post 4 vertical to the guiding horizon rule body 11 together.

The specific embodiment 3 provided by the utility model is mainly different from the embodiment 1 in that: in this embodiment, the guiding horizon rule 1 is provided with a sliding hole perpendicular to the length direction and penetrating through the guiding horizon rule, the positioning column 4 is penetrated in the sliding hole and matched with the sliding hole in a sliding way, and the positioning bolt penetrates 42 through the wall of the sliding hole and is abutted with the positioning column 4. In this embodiment, the sliding hole forms a slideway in the adjusting mechanism, and the portion of the positioning column 4 matched with the sliding hole forms a limit guiding portion.

The specific embodiment 4 provided by the utility model is mainly different from the embodiment 1 in that: in this embodiment, adjustment mechanism is including seting up the regulation screw hole on the direction horizon rule, adjusts the screw hole and extends and run through the direction horizon rule along the direction of height of direction horizon rule, adjusts the screw hole internal be equipped with rather than screw-threaded complex adjusting screw, reference column 4 and adjusting screw's one end fixed connection.

It should be noted that the above-mentioned embodiments are merely preferred embodiments of the present utility model, and the present utility model is not limited to the above-mentioned embodiments, but may be modified without inventive effort or equivalent substitution of some of the technical features thereof by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.

Claims

1. The utility model provides a concentricity measuring tool, includes the direction horizon rule, characterized by is provided with the reference column perpendicularly on the direction horizon rule, one end of reference column constitutes and is used for with the axle coupling portion complex location terminal surface of back wheel, be equipped with the adjustment mechanism who makes reference column follow direction of height of direction horizon rule between reference column and the direction horizon rule.

2. The concentricity measuring tool of claim 1, wherein the adjustment mechanism comprises a slide on one of the guide level and the positioning post and a limit guide on the other.

3. The concentricity measuring tool according to claim 2, wherein the positioning post is provided with a long hole extending in a longitudinal direction thereof, and the slide way is formed by the long hole.

4. The concentricity measuring tool as claimed in claim 3, wherein the limit guide portion is a positioning bolt, and the positioning bolt is inserted into the long hole and is in threaded connection with the guide level bar.

5. The concentricity measuring tool as claimed in claim 4, wherein the positioning bolt is provided with two or more.

6. The concentricity measuring tool as claimed in claim 1, wherein the guiding level is further provided with a level plastic blister.

7. The concentricity measuring tool of claim 1, wherein the locating end face is parallel to a face of the guide horizon rule that is adjacent to the back wheel.

8. The concentricity measuring tool according to claim 1, wherein the guiding level is provided with a slope gauge for measuring the end face clearance and a radial vernier measuring gauge for measuring the radial clearance.

9. The concentricity measuring tool according to claim 8, wherein the radial vernier measuring scale slides along the length direction of the guiding horizontal scale, the radial vernier measuring scale comprises a connecting part with a C-shaped structure and a marking part with a right triangle structure, and the front surface of the marking part is provided with scales.

10. The concentricity measuring tool as claimed in claim 8, wherein the slope plug slides along the height direction of the guiding level, one end of the slope plug is formed with a slope, and the side wall of the slope plug is provided with a scale at the end close to the slope.