CN211503979U - Rotary alignment tool - Google Patents
Rotary alignment tool Download PDFInfo
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- CN211503979U CN211503979U CN202020584692.XU CN202020584692U CN211503979U CN 211503979 U CN211503979 U CN 211503979U CN 202020584692 U CN202020584692 U CN 202020584692U CN 211503979 U CN211503979 U CN 211503979U
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Abstract
The utility model relates to the technical field of part alignment, and provides a rotary alignment tool, which comprises a clamp, a first measuring arm, a second measuring arm, a scriber and a dial indicator; one end of the first measuring arm is fixedly connected with the clamp, and the other end of the first measuring arm is fixedly connected with the scriber; the axis of the first measuring arm is perpendicular to the central line of the clamp; one end of the second measuring arm is fixedly connected with the clamp, and the other end of the second measuring arm is fixedly connected with the dial indicator; the axis of the second measuring arm is perpendicular to the central line of the clamp. When the rotary alignment tool provided by the embodiment of the utility model is used, the rotating shaft can be aligned by only installing the clamp on the rotating shaft and enabling the needle point of the scriber and the measuring head of the dial indicator to be in contact with the datum plane at the same time and then rotating the rotary alignment tool; compared with the prior art, the method has the advantages that the workload is reduced, the work efficiency in alignment is improved, the alignment precision is improved, and the requirements on the technical level of operators are reduced.
Description
Technical Field
The utility model belongs to the technical field of the part alignment technique and specifically relates to a rotation alignment instrument.
Background
An inner barrel which is horizontally arranged is arranged in an air inlet box of the axial flow fan, a bearing box is arranged in the inner barrel, and a rotating shaft which is coaxial with the inner barrel is arranged on the bearing box. In the process of installing the bearing box to the inner barrel, the rotating shaft needs to be aligned to control the verticality and the coaxiality of the rotating shaft, so that the rotating shaft meets the requirements of a drawing. The traditional alignment mode is that the alignment is carried out to the axis of rotation through the cooperation of instruments such as ruler, plumb line, and not only work load is big during the alignment, and work efficiency is low, accumulates the operating error moreover, and the alignment precision is poor to require strictly to operating personnel's technical level.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problem that a rotation alignment instrument is provided to work efficiency when improving the alignment.
The utility model provides a technical scheme that its technical problem adopted is: the rotary alignment tool comprises a hoop, a first measuring arm, a second measuring arm, a scriber and a dial indicator;
one end of the first measuring arm is fixedly connected with the clamp, and the other end of the first measuring arm is fixedly connected with the scriber; the axis of the first measuring arm is perpendicular to the central line of the clamp;
one end of the second measuring arm is fixedly connected with the clamp, and the other end of the second measuring arm is fixedly connected with the dial indicator; the axis of the second measuring arm is perpendicular to the central line of the clamp.
Further, the first measuring arm and the second measuring arm are coaxially arranged.
Further, the axis of the scriber is parallel to the axis of the first measuring arm, and the tip of the scriber is positioned outside the first measuring arm.
Furthermore, the axis of the measuring rod of the dial indicator is parallel to the axis of the second measuring arm, and the measuring head of the dial indicator is positioned outside the second measuring arm.
Further, the axis of the scriber is perpendicular to the axis of the first measuring arm.
Further, the axis of the measuring rod of the dial indicator is perpendicular to the axis of the second measuring arm.
Furthermore, the hoop comprises a circular hoop body, a first lug is arranged at the first end of the hoop body, and a second lug is arranged at the second end of the hoop body; the first lug and the second lug are detachably connected through a fastener.
The utility model has the advantages that: when the rotary alignment tool provided by the embodiment of the utility model is used, the rotating shaft can be aligned by only installing the clamp on the rotating shaft and enabling the needle point of the scriber and the measuring head of the dial indicator to be in contact with the datum plane at the same time and then rotating the rotary alignment tool; compared with the prior art, the method has the advantages that the workload is reduced, the work efficiency in alignment is improved, the alignment precision is improved, and the requirements on the technical level of operators are reduced.
Drawings
In order to more clearly illustrate the technical solution in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments are briefly introduced below; it is obvious that the drawings in the following description are only some embodiments of the invention, and that for a person skilled in the art, other drawings can be derived from them without inventive effort.
FIG. 1 is a schematic structural view of a rotary alignment tool according to an embodiment of the present invention;
fig. 2 and fig. 3 are schematic structural diagrams illustrating the rotation axis of the bearing box being aligned by the rotary alignment tool according to the embodiment of the present invention.
The reference numbers in the figures are: 1-a clamp, 2-a first measuring arm, 3-a second measuring arm, 4-a scriber, 5-a dial indicator, 6-an inner cylinder, 7-a bearing box, 8-a rotating shaft, 11-a clamp body, 12-a first lug, 13-a second lug, 14-a fastener.
Detailed Description
The present invention will be further explained with reference to the drawings and examples. It should be noted that the embodiments and features of the embodiments of the present invention may be combined with each other without conflict.
As shown in fig. 1, the rotary alignment tool according to the embodiment of the present invention includes a clamp 1, a first measuring arm 2, a second measuring arm 3, a scriber 4 and a dial indicator 5; one end of the first measuring arm 2 is fixedly connected with the hoop 1, and the other end of the first measuring arm is fixedly connected with the scriber 4; the axis of the first measuring arm 2 is perpendicular to the central line of the clamp 1; one end of the second measuring arm 3 is fixedly connected with the clamp 1, and the other end of the second measuring arm is fixedly connected with the dial indicator 5; the axis of the second measuring arm 3 is perpendicular to the central line of the clamp 1.
Fig. 1 shows an embodiment of a clamp 1, the clamp 1 comprising a ring-shaped clamp body 11, a first end of the clamp body 11 being provided with a first lug 12, and a second end of the clamp body 11 being provided with a second lug 13; the first lug 12 and the second lug 13 are detachably connected by a fastener 14. The clamp body 11 is a circular ring structure formed by a circle of steel plates in a surrounding mode, a first lug 12 is welded or integrally formed at a first end of the clamp body 11, and a second lug 13 is welded or integrally formed at a second end of the clamp body 11. The fastening member 14 may be only a bolt, and the bolt passes through the through hole of the first lug 12 and then is connected with the threaded hole of the second lug 13. The fastening member 14 may also be a bolt and a nut, and the bolt is threaded with the nut after sequentially passing through the through holes of the first lug 12 and the second lug 13. Of course, the fastener 14 may have other structures, and is not limited in particular. The clamp 1 may also be other structures in the prior art, and is not limited in detail herein.
The first measuring arm 2 and the second measuring arm 3 are rigid elements with strip-shaped structures, cannot be influenced by stretching or bending to measuring accuracy, and can be circular, square, polygonal and the like in cross section. The included angle between the first measuring arm 2 and the second measuring arm 3 can be set arbitrarily, and is not limited specifically here. In a preferred embodiment, the first measuring arm 2 and the second measuring arm 3 are coaxially arranged, so that an included angle between the first measuring arm 2 and the second measuring arm 3 is 180 °. Further, the axes of the first measuring arm 2, the second measuring arm 3 and the central line of the clamp 1 are coplanar.
The scriber 4 is a rigid element with a long strip structure and cannot be influenced by stretching or bending to the measurement precision. The cross section of the rod part of the scriber 4 can be round, square, polygonal and the like. In order to facilitate the replacement of the scriber 4, the scriber 4 is detachably connected with the first measuring arm 2 through a first locking device; the first locking device can adopt a hoop.
As a preferred embodiment, the first locking means comprises a first screw and a first nut; a first through hole is formed in the end part of the first measuring arm 2, a first positioning hole is formed in one end of the first screw rod, the rod part of the scriber 4 is arranged in the first positioning hole, and the other end of the first screw rod penetrates through the first through hole in the first measuring arm 2 and then is in threaded connection with a first nut; after the first nut is screwed down, the scriber 4 is fixedly connected with the first measuring arm 2. Adopt this first locking device, can also adjust the contained angle between the axis of scriber 4 and the axis of first measuring arm 2, in order to increase the utility model discloses rotation alignment tool's application scope. For example, first, the first nut is unscrewed, the included angle between the axis of the scriber 4 and the axis of the first measuring arm 2 is adjusted, and after the adjustment is finished, the first nut is screwed, so that the scriber 4 is fixedly connected with the first measuring arm 2.
The dial indicator 5 is a gauge type general length measuring tool manufactured by using a precise rack and pinion mechanism, and generally comprises a measuring head, a measuring rod, a shockproof spring, a rack, a gear, a hairspring, a round dial, a pointer and the like. In order to facilitate replacement of the dial indicator 5, the dial indicator 5 is detachably connected with the second measuring arm 3 through a second locking device; the second locking device can adopt a hoop.
As a preferred embodiment, the second locking device comprises a second screw and a second nut; a second through hole is formed in the end part of the second measuring arm 3, a second positioning hole is formed in one end of a second screw rod, the measuring rod of the dial indicator 5 is arranged in the second positioning hole, and the other end of the second screw rod penetrates through the second through hole in the second measuring arm 3 and then is in threaded connection with a second nut; after the second nut is screwed down, the dial indicator 5 is fixedly connected with the second measuring arm 3. Adopt this second locking device, can also adjust the contained angle between the axis of the 5 measuring sticks of percentage table and the axis of second measuring arm 3, in order to increase the utility model discloses rotation alignment instrument's application scope. For example, the second nut is firstly unscrewed, the included angle between the axis of the measuring rod of the dial indicator 5 and the axis of the second measuring arm 3 is adjusted, and after the adjustment is finished, the second nut is screwed, so that the fixed connection between the dial indicator 5 and the second measuring arm 3 is realized.
In one embodiment, the axis of the scriber 4 is parallel to the axis of the first measuring arm 2, and the tip of the scriber 4 is located outside the first measuring arm 2. The axis of the measuring rod of the dial indicator 5 is parallel to the axis of the second measuring arm 3, and the measuring head of the dial indicator 5 is positioned outside the second measuring arm 3.
Fig. 2 is a schematic structural diagram illustrating the alignment of the rotating shaft 8 of the bearing housing 7 by using the rotary alignment tool of the above embodiment, and the alignment process of the rotating shaft 8 will be described with reference to fig. 2:
as shown in fig. 2, the inner cylinder 6 is horizontally arranged, the inner surface of the inner cylinder 6 is a reference surface, the bearing box 7 is lifted into the inner cylinder 6 through a lifting device, firstly, the position of the scriber 4 is adjusted, and the distance from the needle point of the scriber 4 to the central line of the hoop 1 is equal to the inner radius of the inner cylinder 4; then the hoop 1 is arranged on the rotating shaft 8, the needle point of the scriber 4 is contacted with the inner surface of the inner cylinder 6, and the measuring head of the dial indicator 5 is contacted with the inner surface of the inner cylinder 6; and then driving the rotary alignment tool to do circular motion around the axis of the rotating shaft 8, enabling the needle point of the scriber 4 to be always in contact with the inner surface of the inner cylinder 6 in the process, and taking the needle point as a reference, adjusting the position of the bearing box 7 through the matching of tools such as hoisting equipment, a jack and the like, keeping the reading of the dial indicator 5 within the range of tolerance requirements, and controlling the coaxiality of the rotating shaft 8 and the inner cylinder 6 to enable the reading to meet the drawing requirements.
In one embodiment, the axis of the stylus 4 is perpendicular to the axis of the first measuring arm 2. The axis of the measuring rod of the dial indicator 5 is perpendicular to the axis of the second measuring arm 3.
Fig. 3 is a schematic structural diagram illustrating the alignment of the rotating shaft 8 of the bearing housing 7 by using the rotary alignment tool of the above embodiment, and the alignment process of the rotating shaft 8 will be described with reference to fig. 3:
as shown in fig. 3, the inner cylinder 6 is horizontally arranged, the left end surface of the inner cylinder 6 is a reference surface, the left end surface is perpendicular to the central line of the inner cylinder 6, the bearing box 7 is hung into the inner cylinder 6 through a hoisting device, firstly, the hoop 1 is installed on the rotating shaft 8, the needle point of the scriber 4 is contacted with the left end surface of the inner cylinder 6, and the measuring head of the dial indicator 5 is contacted with the left end surface of the inner cylinder 6; then the rotary alignment tool is driven to do circular motion around the axis of the rotating shaft 8, in the process, the needle point of the scratch awl 54 is always in contact with the left end face of the inner cylinder 4, the position of the bearing box 7 is adjusted through the matching of tools such as hoisting equipment, a jack and the like by taking the needle point as a reference, the reading of the dial indicator 5 is kept in the range of tolerance requirements, and the verticality of the rotating shaft 8 is controlled to meet the requirements of drawings.
When the rotary alignment tool provided by the embodiment of the utility model is used, the rotation shaft 8 can be aligned by only installing the hoop 1 on the rotation shaft 8 and enabling the needle point of the scriber 4 and the measuring head of the dial indicator 5 to be in contact with the datum plane at the same time and then rotating the rotary alignment tool; compared with the prior art, the method has the advantages that the workload is reduced, the work efficiency in alignment is improved, the alignment precision is improved, and the requirements on the technical level of operators are reduced.
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 (7)
1. The rotary alignment tool is characterized by comprising a clamp (1), a first measuring arm (2), a second measuring arm (3), a scriber (4) and a dial indicator (5);
one end of the first measuring arm (2) is fixedly connected with the hoop (1), and the other end of the first measuring arm is fixedly connected with the scriber (4); the axis of the first measuring arm (2) is vertical to the central line of the clamp (1);
one end of the second measuring arm (3) is fixedly connected with the hoop (1), and the other end of the second measuring arm is fixedly connected with the dial indicator (5); the axis of the second measuring arm (3) is perpendicular to the central line of the clamp (1).
2. Rotary alignment tool according to claim 1, wherein the first measuring arm (2) is arranged coaxially with the second measuring arm (3).
3. Rotary alignment tool according to claim 1 or 2, wherein the axis of the stylus (4) is parallel to the axis of the first measuring arm (2) and the tip of the stylus (4) is located outside the first measuring arm (2).
4. Rotary alignment tool according to claim 3, wherein the axis of the measuring rod of the dial indicator (5) is parallel to the axis of the second measuring arm (3) and the measuring head of the dial indicator (5) is located outside the second measuring arm (3).
5. Rotary alignment tool according to claim 1 or 2, wherein the axis of the stylus (4) is perpendicular to the axis of the first measuring arm (2).
6. Rotary alignment tool according to claim 5, wherein the axis of the measuring rod of the dial indicator (5) is perpendicular to the axis of the second measuring arm (3).
7. Rotary alignment tool according to claim 1, wherein the clamp (1) comprises a ring-shaped clamp body (11), a first end of the clamp body (11) is provided with a first lug (12), and a second end of the clamp body (11) is provided with a second lug (13); the first lug (12) and the second lug (13) are detachably connected through a fastener (14).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020584692.XU CN211503979U (en) | 2020-04-17 | 2020-04-17 | Rotary alignment tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020584692.XU CN211503979U (en) | 2020-04-17 | 2020-04-17 | Rotary alignment tool |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211503979U true CN211503979U (en) | 2020-09-15 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020584692.XU Active CN211503979U (en) | 2020-04-17 | 2020-04-17 | Rotary alignment tool |
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| CN (1) | CN211503979U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114111496A (en) * | 2021-11-11 | 2022-03-01 | 中车洛阳机车有限公司 | Diesel locomotive diesel engine small oil seal alignment clamp and operation method thereof |
-
2020
- 2020-04-17 CN CN202020584692.XU patent/CN211503979U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114111496A (en) * | 2021-11-11 | 2022-03-01 | 中车洛阳机车有限公司 | Diesel locomotive diesel engine small oil seal alignment clamp and operation method thereof |
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