CN210799714U - Rotating shaft with high rotating accuracy - Google Patents
Rotating shaft with high rotating accuracy Download PDFInfo
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- CN210799714U CN210799714U CN201921938139.5U CN201921938139U CN210799714U CN 210799714 U CN210799714 U CN 210799714U CN 201921938139 U CN201921938139 U CN 201921938139U CN 210799714 U CN210799714 U CN 210799714U
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- scale disc
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Abstract
The utility model discloses a pivot that rotation accuracy is high relates to the pivot field. The technical key points are as follows: the utility model provides a pivot that rotation accuracy is high, includes the rotation axis, the coaxial laminating in both ends of rotation axis has the rotating sleeve, and the rotating sleeve is kept away from the one end coaxial fixed with the scale disc of rotation axis, and the scale disc is provided with the scale mark that is used for the location along its circumference direction, and the rotation axis both ends coaxial fixed with the bull stick, the bull stick pass rotating sleeve and scale disc in proper order and rotate with the two to be connected, and the one end week lateral wall that the rotation axis was kept away from to the bull stick is fixed with the pointer towards scale mark direction, the utility model has the advantages of guarantee precision instruments's measurement precision.
Description
Technical Field
The utility model relates to a pivot field, more specifically say, it relates to a pivot that rotation accuracy is high.
Background
The rotating shaft is the shaft which is used for connecting main parts of a product and is used for bearing bending moment and torque in rotating work as the name implies.
The chinese utility model with publication number CN201173037Y discloses a damping rotating shaft, which is composed of a shaft sleeve and a rotating shaft. Two ends of the shaft sleeve are respectively provided with a longitudinal shaft hole; the rotating shaft consists of a pin shaft and a shaft cap fixedly connected to one end of the pin shaft, the pin shaft on the rotating shaft is inserted into the shaft hole of the shaft sleeve in an interference fit mode, and the insertion end of the pin shaft is provided with a longitudinal long and narrow through groove penetrating through the central line of the shaft pin.
Similar to the rotating shaft in the prior art, when the rotating shaft is used for rotating hinge parts of a part of precision instruments, the rotating angle between the hinge parts cannot be displayed, and the measurement precision of the precision instruments is influenced.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a pivot that rotation accuracy is high, it has the advantage of guaranteeing the measurement precision of precision instruments.
In order to achieve the above purpose, the utility model provides a following technical scheme:
the utility model provides a pivot that rotation accuracy is high, includes the rotation axis, the coaxial laminating in both ends of rotation axis has the rotating sleeve, the one end coaxial fixation that the rotation axis was kept away from to the rotating sleeve has the scale disc, the scale disc is provided with the scale mark that is used for the location along its circumference direction, the coaxial bull stick that is fixed with in rotation axis both ends, the bull stick passes rotating sleeve and scale disc in proper order and rotates with the two to be connected, the one end week lateral wall that the rotation axis was kept away from to the bull stick is fixed with the pointer towards scale mark direction.
Through adopting above-mentioned technical scheme, when the installation pivot, it is fixed with one of them part with the rotation axis, and the swivel sleeve is fixed with another part.
When relative rotation takes place at two parts, the rotation axis can drive the bull stick and take place to rotate in rotatory cover, and the pointer also can take place to rotate this moment on the scale disc, just can confirm the rotation angle of rotation between rotation axis and the rotatory cover through calculating the initial position of pointer on the scale disc, and then obtains the rotation angle between two parts on the precision instrument, guarantees precision instrument normal use, and then guarantees precision instrument's measurement precision.
Furthermore, one side of the scale disc, which is far away from the rotary sleeve, is provided with a transparent cover.
By adopting the technical scheme, firstly, the transparent cover is transparent and has visibility, and the influence of an operator on the rotation angle is not influenced; secondly, the transparent cover plays a role in protection, so that an operator is prevented from being injured by an indicating needle, and the safety is improved; moreover, transparent housing plays the effect of keeping off the ash, avoids the deposition on the scale disc, improves the visual performance of scale disc and pointer, and then improves precision instrument's measurement precision.
Furthermore, a plurality of liquid leakage holes communicated with the inside of the transparent cover are formed in the peripheral side wall of the transparent cover.
Through adopting above-mentioned technical scheme, the lubricated liquid in the transparent housing can discharge through the weeping hole, reduces the influence of lubricated liquid to the sight.
Furthermore, one side of the transparent cover far away from the scale disc is provided with a convex lens, and the convex end of the convex lens is far away from the scale disc.
Through adopting above-mentioned technical scheme, convex lens has the magnification function, makes things convenient for the operator to counterpoint, improves precision instrument's measurement precision.
Furthermore, one side of the scale disc, which is far away from the rotary sleeve, is provided with a transparent release film.
Through adopting above-mentioned technical scheme, the coefficient of friction from the type membrane is low, and the dust is difficult to glue on the scale disc surface, guarantees the cleanliness factor of scale disc, makes things convenient for the operator to observe the scale mark, and then improves precision instrument's measurement precision.
Furthermore, a reference convex strip protrudes from one side of the scale disc, which is far away from the rotary sleeve.
Through adopting above-mentioned technical scheme to the sand grip of definite position is the benchmark, and the operator only need look over the position that the pointer instructed and can carry out the calculation of rotation angle, makes things convenient for the operator to counterpoint.
Furthermore, a transparent rolling sleeve is sleeved on the periphery of the indicating needle.
By adopting the technical scheme, firstly, the transparent rolling sleeve is transparent and has visual performance, and the checking of the pointer is not influenced; secondly, the rolling sleeve plays a role in protection, so that an operator is prevented from being stabbed, and the safety is improved.
Furthermore, the scale mark is groove-shaped, and fluorescent powder is sprayed in the scale mark.
Through adopting above-mentioned technical scheme, phosphor powder not only can show the scale mark is protruding, can also give out light at night moreover, makes things convenient for the staff to counterpoint.
Compared with the prior art, the beneficial effects of the utility model are that:
(1) by arranging the scale disc and the indicating needle, when the two parts rotate relatively, the indicating needle also rotates on the scale disc, and the rotating angle between the two parts can be determined by calculating the initial position of the indicating needle on the scale disc, so that the normal use of a precision instrument is ensured, and the measuring precision of the precision instrument is further ensured;
(2) the arrangement of the reference raised line facilitates the alignment of an operator; the fluorescent powder is arranged, so that the alignment of workers is facilitated;
(3) through setting up transparent housing, not only play the guard action, play the ash blocking effect moreover, improve precision instrument's measurement precision.
Drawings
FIG. 1 is an exploded view of the present embodiment;
FIG. 2 is a partial perspective sectional view of the present embodiment;
FIG. 3 is an enlarged view of portion A of FIG. 1;
fig. 4 is an enlarged schematic view of a portion B in fig. 2.
Reference numerals: 1. a rotating shaft; 2. a rotating sleeve; 3. a graduated disk; 301. scale lines; 4. a rotating rod; 5. an indicator needle; 6. a transparent cover; 601. a circular plate; 602. a circular ring; 7. a weep hole; 8. a convex lens; 9. a release film; 10. a reference convex strip; 11. a transparent rolling sleeve.
Detailed Description
The present invention will be described in detail with reference to the accompanying drawings and examples.
Referring to fig. 1, a rotary shaft with high rotational accuracy includes a cylindrical rotary shaft 1, and when the rotary shaft 1 is mounted, a circumferential side wall of the rotary shaft is fixed to one of parts of a precision instrument.
The two ends of the rotating shaft 1 are coaxially provided with rotating sleeves 2, and the rotating sleeves 2 are in a circular tube shape. The rotary sleeve 2 is in a state of being attached to the end wall of the rotary shaft 1, and therefore the rotary sleeve 2 and the rotary shaft 1 can rotate relative to each other. When the rotary sleeve 2 is installed, the peripheral wall of the rotary sleeve 2 is fixed with another part of the precision instrument, and when the two parts of the precision instrument rotate relatively, the rotary shaft 1 and the rotary sleeve 2 rotate relatively.
Referring to fig. 1 and 2, a scale disc 3 is coaxially fixed at one end of the rotary sleeve 2 away from the rotary shaft 1, and the scale disc 3 is a circular scale disc, which belongs to the prior art and is not described herein again. The scale disc 3 is provided with a plurality of strip-shaped scale marks 301 for positioning along the circumferential direction, and the reverse extension lines of the scale marks 301 penetrate through the circle center of the scale disc 3. The scale marks 301 on the scale disk 3 are groove-shaped scale marks 301, and fluorescent powder (not shown in the figure) is sprayed in the groove-shaped scale marks 301. One side of the scale disc 3 far away from the rotary sleeve 2 is pasted with a transparent release film 9, and the release film 9 belongs to the prior art and is not described herein again.
Referring to fig. 3 and 4, a cylindrical rotating rod 4 is coaxially fixed at both ends of the rotating shaft 1, and the rotating rod 4 sequentially passes through the rotating sleeve 2 and the scale disc 3 and is rotatably connected with the rotating sleeve and the scale disc. The one end peripheral wall of the rotating rod 4 far away from the rotating shaft 1 is fixed with the indicating needle 5 towards the direction of the scale mark 301, and the indicating needle 5 is perpendicular to the peripheral wall of the rotating rod 4, so that the indicating needle 5 is parallel to the scale mark 301.
The transparent rolling sleeve 11 is sleeved on the periphery of the pointer 5, and the transparent rolling sleeve 11 is fixedly bonded with the periphery wall of the pointer 5, so that the transparent rolling sleeve 11 cannot fall off from the pointer 5. A gap is formed between the outer wall of the transparent rolling sleeve 11 and the scale disc 3, so that the transparent rolling sleeve 11 and the scale disc 3 cannot rub against each other, and the indicating needle 5 is convenient to rotate.
Referring to fig. 2 and 4, an elongated reference rib 10 protrudes from one side of the scale disc 3 away from the rotating sleeve 2, the reference rib 10 overlaps one of the scale marks 301 to serve as a reference, and when the pointer 5 does not rotate, the pointer 5 just fits the top wall of the reference rib 10.
The transparent cover 6 is arranged on one side of the scale disc 3 far away from the rotating sleeve 2, the transparent cover 6 comprises a transparent circular plate 601 and a transparent circular ring 602, and the circular plate 601 and the circular ring 602 are integrally formed. The circular plate 601 is coaxial with the circular ring 602, the circular ring 602 is located on the side of the circular plate 601 close to the scale circular plate 601, and the cross sections of the circular plate 601 and the circular ring 602 are arranged in the shape of "Contraband", so the circular ring 602 is the peripheral side wall of the transparent cover 6. The ring 602 is coaxial with the scale disk 3, and the side of the ring 602 close to the scale disk 3 is fixed to the side wall of the scale disk 601 by adhesion, so that the transparent cover 6 also rotates when the disk 601 rotates.
The ring 602 is provided with a plurality of liquid leakage holes 7 communicated with the inside of the transparent cover 6 along the circumferential direction, and the lubricating oil on the scale disc 3 can be discharged from the liquid leakage holes 7. The side of the transparent cover 6, which is far away from the scale disc 3, is adhered with the convex lens 8 through the transparent glue, and the convex end of the convex lens 8 is far away from the scale disc 3, so that when an operator observes the pointer 5 and the scale marks 301 through the convex lens 8, the convex lens 8 can play a role in amplification.
The utility model discloses a working process and beneficial effect as follows: when the rotating shaft is installed, the rotating shaft 1 is fixed with one part, and the rotating sleeve 2 is fixed with the other part.
When relative rotation takes place at two parts, rotation axis 1 can drive bull stick 4 and take place to rotate in rotary sleeve 2, and pointer 5 also can take place to rotate on scale disc 3 this moment, just can confirm the rotation angle of rotation between rotation axis 1 and the rotary sleeve 2 through calculating the initial position of pointer 5 on scale disc 3, and then obtains the rotation angle between two parts on the precision instrument, guarantees precision instrument normal use, and then guarantees precision instrument's measurement precision.
It is above only the utility model discloses a preferred embodiment, the utility model discloses a scope of protection does not only confine above-mentioned embodiment, the all belongs to the utility model discloses a technical scheme under the thinking all belongs to the utility model discloses a scope of protection. It should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.
Claims (8)
1. The utility model provides a pivot that rotation accuracy is high, a serial communication port, including rotation axis (1), the coaxial laminating in both ends of rotation axis (1) has rotatory cover (2), the one end coaxial fixation that rotation axis (1) was kept away from in rotatory cover (2) has scale disc (3), scale disc (3) are provided with scale mark (301) that are used for the location along its week direction, rotation axis (1) both ends coaxial fixation has bull stick (4), bull stick (4) pass rotatory cover (2) and scale disc (3) in proper order and rotate with the two and be connected, the one end week lateral wall that rotation axis (1) was kept away from in bull stick (4) is fixed with pointer (5) towards scale mark (301) direction.
2. A rotary shaft with high rotary accuracy according to claim 1, characterized in that the side of the scale disc (3) remote from the rotary sleeve (2) is provided with a transparent cover (6).
3. A rotary shaft with high rotation accuracy as claimed in claim 2, wherein the peripheral side wall of the transparent cover (6) is provided with a plurality of weep holes (7) communicating with the interior thereof.
4. A rotary shaft with high rotary precision according to claim 2, characterized in that the transparent cover (6) is provided with a convex lens (8) on the side away from the scale disc (3) and the convex end is away from the scale disc (3).
5. A spindle with high rotational accuracy according to claim 1, characterised in that a transparent release film (9) is arranged on the side of the scale disc (3) facing away from the rotary sleeve (2).
6. A rotary shaft with high rotary accuracy according to claim 1, characterized in that the scale disc (3) has a reference rib (10) protruding from a side thereof remote from the rotary sleeve (2).
7. A rotary shaft with high rotation accuracy according to claim 1, characterized in that the pointer (5) is sleeved with a transparent rolling sleeve (11).
8. A rotary shaft with high rotation accuracy as claimed in claim 1, wherein the graduation lines (301) are groove-shaped, and fluorescent powder is sprayed in the graduation lines (301).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921938139.5U CN210799714U (en) | 2019-11-12 | 2019-11-12 | Rotating shaft with high rotating accuracy |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921938139.5U CN210799714U (en) | 2019-11-12 | 2019-11-12 | Rotating shaft with high rotating accuracy |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210799714U true CN210799714U (en) | 2020-06-19 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921938139.5U Active CN210799714U (en) | 2019-11-12 | 2019-11-12 | Rotating shaft with high rotating accuracy |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210799714U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113143643A (en) * | 2021-06-02 | 2021-07-23 | 中日友好医院(中日友好临床医学研究所) | Portable adjustable support frame |
-
2019
- 2019-11-12 CN CN201921938139.5U patent/CN210799714U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113143643A (en) * | 2021-06-02 | 2021-07-23 | 中日友好医院(中日友好临床医学研究所) | Portable adjustable support frame |
| CN113143643B (en) * | 2021-06-02 | 2022-05-27 | 中日友好医院(中日友好临床医学研究所) | Portable adjustable support frame |
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