CN218511602U

CN218511602U - Special outside micrometer for odd number grooves

Info

Publication number: CN218511602U
Application number: CN202222871939.8U
Authority: CN
Inventors: 杨兵
Original assignee: Hubei Elter Compressor Co ltd
Current assignee: Hubei Elter Compressor Co ltd
Priority date: 2022-10-31
Filing date: 2022-10-31
Publication date: 2023-02-21
Anticipated expiration: 2032-10-31

Abstract

The application relates to a special external micrometer in odd groove, it includes: the screw rod rotor comprises a base, wherein an arc-shaped surface is arranged on the base, and the diameter of a virtual circle formed by the arc-shaped surface is larger than that of the screw rod rotor; the measuring rod is vertically arranged on the base, and the axis of the measuring rod is perpendicular to and intersected with the axis of the arc-shaped surface; this application can be after the user puts odd number groove screw rotor on the arcwall face, make odd number groove screw rotor roll to the lowest position on the arcwall face and align at vertical direction with the measuring stick through the action of gravity automatically, thereby make the axis of odd number groove screw rotor perpendicular and crossing with the axis of measuring stick, simultaneously the external diameter of odd number groove screw rotor can earlier with arcwall face linear contact, when the lower extreme of measuring stick supports the external diameter of odd number groove screw rotor like this, just can ensure that the data that measure is the maximum external diameter size of odd number groove screw rotor, thereby made things convenient for the measurement to odd number groove screw rotor external diameter size, therefore, the clothes hanger is strong in practicability.

Description

Special outside micrometer for odd number grooves

Technical Field

The application relates to the technical field of screw rotor measurement, in particular to an odd-groove special outside micrometer.

Background

At present, the outside diameter of the screw rotor is generally measured by a micrometer, which has a frame with an anvil at one end and a micrometer screw at the other end, and the micrometer screw moves close to or away from the anvil as the user holds the frame and rotates a sleeve mounted on the micrometer screw, and the user obtains the outside diameter of the screw rotor by reading the scale on the micrometer.

However, when the existing micrometer is used, it is equivalent to that the two end points abut against two sides of the outer diameter of the screw rotor for measurement, but the screw rotor has a complex shape and a very high requirement on the profile precision, and the outer circular surface of the screw rotor is an incomplete surface, so it is difficult to measure by a common micrometer, please refer to fig. 1 below, although the molded lines on the even-number symmetric groove screw rotor are symmetric, the two end points of the micrometer can abut against the outer diameters of the two sides of the even-number symmetric groove screw rotor at the same time, but referring to fig. 2 below, the molded lines of the odd-number groove screw rotor are asymmetric, the two end points of the micrometer can only have one outer diameter abutting against the odd-number groove screw rotor, and the other end point can only abut against the groove on the odd-number groove screw rotor, so that the common micrometer can only measure the even-number symmetric groove screw rotor, and cannot accurately measure the outer diameter of the odd-number groove screw rotor, and when the outer diameter of the odd-number groove screw rotor is measured, it is inconvenient to place on the platform and then to measure by cooperating with various measuring tools.

Aiming at the problems, the special outside micrometer for the odd-number grooves is designed at present.

SUMMERY OF THE UTILITY MODEL

The embodiment of the application provides a special outside micrometer for odd-number grooves to solve the problem that the existing micrometer in the prior art cannot accurately measure the outside diameter of a screw rotor with odd-number grooves.

In a first aspect, an odd-groove special outside micrometer is provided, which includes:

the screw rod rotor positioning device comprises a base, wherein an arc-shaped surface for placing the screw rod rotor is arranged on the base, and the diameter of a virtual circle formed by the arc-shaped surface is larger than that of the screw rod rotor;

the measuring rod is vertically arranged on the base, and the axis of the measuring rod is perpendicular to and intersected with the axis of the arc-shaped surface.

In some embodiments, the base includes a base body and a fixing tube, the fixing tube is disposed on the base body, the measuring rod is vertically disposed on the fixing tube, and an inner side surface of the fixing tube forms an arc-shaped surface.

In some embodiments, the fixed tube has an opening.

In some embodiments, the micrometer further comprises a support assembly, the support assembly is provided with a plurality of groups, the support assembly comprises a connecting pipe, a screw block, a threaded rod and a support leg, the connecting pipe is arranged at the lower end of the base body, the screw block is arranged at the lower end of the connecting pipe, the threaded rod penetrates through the screw block and the connecting pipe, the threaded rod is in threaded connection with the screw block, and the support leg is rotatably arranged at the lower end of the threaded rod.

In some embodiments, the threaded rod is provided with an adjusting block, and the adjusting block is provided with a plurality of protrusions.

In some embodiments, the lower ends of the support legs are provided with rubber pads.

The embodiment of the application provides a special outside micrometer in odd number groove, because this application is through setting up measuring stick and arcwall face on the base, can be after the user puts odd number groove screw rotor on the arcwall face, make odd number groove screw rotor roll to the lowest position on the arcwall face and align at vertical direction with the measuring stick through the action of gravity automatically, thereby make the axis of odd number groove screw rotor perpendicular and crossing with the axis of measuring stick, simultaneously the external diameter of odd number groove screw rotor can earlier with arcwall face linear contact, when the lower extreme of measuring stick supported the external diameter of odd number groove screw rotor, the distance of measuring stick lower extreme to arcwall face lowest position just equals the external diameter size of odd number groove screw rotor, just so can ensure that the data that measure is the maximum external diameter size of odd number groove screw rotor, thereby made things convenient for the measurement to odd number groove screw rotor external diameter size, therefore, the clothes hanger is strong in practicability.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.

FIG. 1 is a schematic view of a micrometer for measuring a screw rotor with a double-number symmetrical groove in the prior art;

FIG. 2 is a schematic view of a micrometer measuring an odd-number groove screw rotor in the prior art;

FIG. 3 is a schematic three-dimensional structure provided by an embodiment of the present application;

FIG. 4 is an enlarged structural diagram of a location D in FIG. 3 according to an embodiment of the present disclosure;

fig. 5 is a schematic front view structure provided in the embodiment of the present application.

In the figure: 1. a base; 11. a base body; 12. fixing the tube; 2. an arc-shaped surface; 3. a measuring rod; 31. a micrometer screw; 32. fixing the sleeve; 33. a micro-drum; 34. finely adjusting a knob; 4. an opening; 5. a support assembly; 51. a connecting pipe; 52. a screw block; 53. a threaded rod; 54. a support leg; 55. an adjusting block; 56. a rubber pad; 10. a screw rotor.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some embodiments of the present application, but not all embodiments. All other embodiments obtained by a person of ordinary skill in the art based on the embodiments in the present application without making creative efforts shall fall within the protection scope of the present application.

The embodiment of the application provides a special outside micrometer for odd-number grooves, which can solve the problem that the existing micrometer in the related art can not accurately measure the outside diameter of a screw rotor with odd-number grooves.

Referring to fig. 3-5, the odd-groove special micrometer includes a base 1 and a measuring rod 3, the base 1 is provided with an arc-shaped surface 2 for placing a screw rotor 10, a diameter of a virtual circle formed by the arc-shaped surface 2 is larger than a diameter of the screw rotor 10, the measuring rod 3 is vertically disposed on the base 1, and an axis a of the measuring rod 3 is perpendicular to and intersects with an axis B of the arc-shaped surface 2, so that when the odd-groove screw rotor 10 needs to be measured in outer diameter, a user can first place the base 1 on a horizontal table to keep the measuring rod 3 perpendicular to the ground, and then place the odd-groove screw rotor 10 on the arc-shaped surface 2, so that the odd-groove screw rotor 10 automatically rolls to a lowest position on the arc-shaped surface 2 under the action of gravity, and at this time, the outer diameter of the odd-groove screw rotor 10 is in linear contact with the arc-shaped surface 2 along the axis C, so that the axis C of the odd-groove screw rotor 10 is parallel to the axis B of the arc-shaped surface 2, and the axis C is aligned with the axis B of the odd-groove screw rotor 10, and the axis a vertical axis a of the screw rotor 10 is perpendicular to the axis B, so that the axis a vertical to the axis a of the screw rotor 10 is perpendicular to the axis B, and the screw rotor 10 is also to be placed in the direction;

then the user just can rotate measuring stick 3, and constantly at the position of horizontal plane adjustment odd number groove screw rotor 10, make the lower extreme of measuring stick 3 support odd number groove screw rotor 10's external diameter, the distance of 3 lower extremes of measuring stick to 2 lowest positions of arcwall face just equals odd number groove screw rotor 10's external diameter like this, then the user just can obtain odd number groove screw rotor 10's external diameter size through reading the data on measuring stick 3, just so can ensure that the data that measure is odd number groove screw rotor 10's maximum external diameter size, just so made things convenient for the measurement to odd number groove screw rotor 10 external diameter size, therefore, the clothes hanger is strong in practicability.

The base 1 comprises a base body 11 and a fixed tube 12, the fixed tube 12 is arranged on the base body 11, the measuring rod 3 is vertically arranged on the fixed tube 12, the inner side surface of the fixed tube 12 forms an arc-shaped surface 2, the measuring rod 3 comprises a micrometer screw 31, a fixed sleeve 32, a micro-cylinder 33 and a fine adjustment knob 34, the measuring rod 3 is the prior art and is not an improvement point of the application, and therefore, too much description is not provided;

therefore, when the micrometer screw rotor is used, a user can put the odd-groove screw rotor 10 into the fixed pipe 12, then the fixed sleeve 32 is rotated to enable the micrometer screw 31 to approach the odd-groove screw rotor 10, then the fine adjustment of the position of the micrometer screw 31 is carried out by rotating the fine adjustment knob 34, and after the micrometer screw 31 abuts against the outer diameter of the odd-groove screw rotor 10, the user can obtain the maximum outer diameter size of the odd-groove screw rotor 10 by reading the readings on the fixed sleeve 32 and the micro-cylinder 33.

Specifically, in this embodiment, opening 4 has been seted up on fixed pipe 12, and the user just can put into fixed pipe 12 with odd number groove screw rotor 10 through opening 4 like this, and user's accessible opening 4 observes odd number groove screw rotor 10's position simultaneously to the position of user's constantly adjustment odd number groove screw rotor 10 makes micrometer screw 31 can support odd number groove screw rotor 10's external diameter, has made things convenient for the use.

Referring to fig. 4, further, in this embodiment, the micrometer further includes a support assembly 5, the support assembly 5 includes a plurality of sets, the support assembly 5 includes a connection pipe 51, a screw block 52, a threaded rod 53, and support legs 54, the connection pipe 51 is disposed at the lower end of the base body 11, the screw block 52 is disposed at the lower end of the connection pipe 51, the threaded rod 53 penetrates through the screw block 52 and the connection pipe 51, the threaded rod 53 is in threaded connection with the screw block 52, and the support legs 54 are rotatably disposed at the lower end of the threaded rod 53, so that when the platform on which the base 1 is placed is uneven, a user can rotate the threaded rod 53, and the threaded rod 53 drives the support legs 54 to move up or down through the threaded connection with the screw block 52, so as to adjust the length of each support leg 54 extending downward, so that the measurement bar 3 is perpendicular to the ground, and thus the accuracy of measuring the outer diameter of the odd-grooved screw rotor 10 can be ensured, and the measurement result is prevented from being affected by the deflection of the measurement bar 3.

Furthermore, in this embodiment, be equipped with regulating block 55 on the threaded rod 53, be equipped with a plurality of archs on the regulating block 55, when the user need rotate threaded rod 53 like this, the user just can drive threaded rod 53 through rotating regulating block 55 and rotate, and a plurality of archs on the regulating block 55 can be convenient for more user's rotatory regulating block 55 simultaneously, have made things convenient for the use.

Preferably, the rubber pads 56 are arranged at the lower ends of the support legs 54, so that the surface friction force of the support legs 54 can be increased, and therefore when the micrometer is placed on the platform, the sliding of the base 1 when the micrometer measures the outer diameter of the screw rotor 10 with odd number of grooves can be avoided, the stability of the micrometer during operation is ensured, and the practicability is high.

The working principle of the application is as follows:

when the measuring device is used, the base 1 is placed on a platform, a user rotates the adjusting block 55, the adjusting block 55 drives the threaded rod 53 to rotate, the threaded rod 53 is connected with the threads of the screw block 52 to drive the support legs 54 to move upwards or downwards, the downward extending length of each support leg 54 can be adjusted, the measuring rod 3 is perpendicular to the horizontal plane, then the user can place the odd-groove screw rotor 10 into the fixed pipe 12 through the opening 4, the odd-groove screw rotor 10 automatically rolls to the lowest position on the arc-shaped surface 2 along the arc-shaped surface 2 under the action of gravity, meanwhile, the odd-groove screw rotor 10 automatically aligns with the measuring rod 3 in the vertical direction, the user can continuously adjust the positions of the odd-groove screw rotor 10 and the micrometer screw 31, the micrometer screw 31 abuts against the outer diameter of the odd-groove screw rotor 10, and then the user can obtain the maximum outer diameter of the odd-groove screw rotor 10 by reading readings on the fixed sleeve 32 and the micro-sleeve 33, and thus the measured data can be ensured to be the maximum outer diameter of the odd-groove screw rotor 10, and the measurement of the odd-groove rotor 10 is convenient.

In the description of the present application, it should be noted that the terms "upper", "lower", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, which are only for convenience in describing the present application and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and operate, and thus, should not be construed as limiting the present application. Unless expressly stated or limited otherwise, the terms "mounted," "connected," and "connected" are intended to be inclusive and mean, for example, that they may be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate.

It is noted that, in the present application, relational terms such as "first" and "second", and the like, are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising a … …" does not exclude the presence of another identical element in a process, method, article, or apparatus that comprises the element.

The above description is merely exemplary of the present application and is presented to enable those skilled in the art to understand and practice the present application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the application. Thus, the present application is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. Odd number groove special external micrometer, its characterized in that, it includes:

the screw rotor positioning device comprises a base (1), wherein an arc-shaped surface (2) for placing a screw rotor (10) is arranged on the base (1), and the diameter of a virtual circle formed by the arc-shaped surface (2) is larger than that of the screw rotor (10);

the measuring rod (3) is vertically arranged on the base (1), and the axis of the measuring rod (3) is perpendicular to and intersected with the axis of the arc-shaped surface (2).

2. The outside micrometer as specified in claim 1, wherein:

the base (1) comprises a base body (11) and a fixed pipe (12), the fixed pipe (12) is arranged on the base body (11), the measuring rod (3) is vertically arranged on the fixed pipe (12), and the inner side surface of the fixed pipe (12) forms an arc-shaped surface (2).

3. The special micrometer caliper for odd grooves according to claim 2, wherein:

the fixed pipe (12) is provided with an opening (4).

4. The outside micrometer as specified in claim 2, wherein:

the micrometer further comprises a supporting component (5), the supporting component (5) is provided with a plurality of groups, the supporting component (5) comprises a connecting pipe (51), a screw block (52), a threaded rod (53) and a supporting leg (54), the connecting pipe (51) is arranged at the lower end of the base body (11), the screw block (52) is arranged at the lower end of the connecting pipe (51), the threaded rod (53) penetrates through the screw block (52) and the connecting pipe (51), the threaded rod (53) is in threaded connection with the screw block (52), and the supporting leg (54) is rotatably arranged at the lower end of the threaded rod (53).

5. The outside micrometer as specified in claim 4, wherein:

the threaded rod (53) is provided with an adjusting block (55), and the adjusting block (55) is provided with a plurality of protrusions.

6. The outside micrometer as specified in claim 4, wherein:

the lower ends of the support legs (54) are provided with rubber pads (56).