CN214951165U - Roundness measuring instrument - Google Patents
Roundness measuring instrument Download PDFInfo
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- CN214951165U CN214951165U CN202121012916.0U CN202121012916U CN214951165U CN 214951165 U CN214951165 U CN 214951165U CN 202121012916 U CN202121012916 U CN 202121012916U CN 214951165 U CN214951165 U CN 214951165U
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Abstract
The utility model discloses a roundness measuring instrument, including electron distancer and location installation component, location installation component includes rotating part, centre of a circle locating support and installing support, the rotating part is located on the centre of a circle locating support just centre of a circle locating support can be the internal diameter that circular shape was measured the thing according to cross sectional shape and adjust so that the rotating part is located the circular shape of the corresponding round axle of measuring the thing of measuring, the rotating part winds the round axle rotates, the installing support forms the installation department with centre of a circle locating support jointly, electron distancer locates on the rotating part, electron distancer's range finding direction is towards the perpendicular to round axle direction. Adopt the utility model discloses can carry out the precision measurement to circular pressure-bearing equipment's circularity.
Description
Technical Field
The utility model relates to a measure technical field, concretely relates to roundness measuring instrument.
Background
In the manufacturing process and the actual use of circular pressure-bearing equipment such as pressure vessels, boilers and the like, the out-of-roundness of the shell ring of the equipment is measured to ensure that the standard requirement is met, and the pressure-bearing capacity of the pressure-bearing equipment is prevented from being reduced due to the out-of-roundness exceeding in the actual use process, so that certain potential safety hazards in production are avoided. At present, the traditional measuring method adopts a measuring tape or a standard sample plate for measuring, and the traditional measuring method has larger error in measuring the out-of-roundness of the circular pressure-bearing equipment.
SUMMERY OF THE UTILITY MODEL
In order to overcome the defects of the prior art, the utility model aims to solve the technical problem that a roundness measuring instrument capable of accurately measuring the roundness of circular bearing equipment is provided.
In order to solve the technical problem, the utility model discloses a technical scheme be:
the utility model provides a roundness measuring instrument, includes electronic range finder and location installation component, location installation component includes rotating part, centre of a circle locating support and installing support, the rotating part is located on the centre of a circle locating support just centre of a circle locating support can be the internal diameter regulation of circular shape volume of awaiting measuring thing according to cross sectional shape so that the rotating part is located the circular shape circle axle of volume of awaiting measuring thing correspondence, the rotating part winds the circle axle rotates, the installing support forms the installation department with centre of a circle locating support jointly, electronic range finder locates on the rotating part, electronic range finder's range finding direction is the orientation perpendicular to circle axle direction.
Furthermore, centre of a circle locating support includes base and two locating levers, two the length of locating lever is unanimous, the installing support is a dead lever, two locating lever and a dead lever all form along base week interval horizontal arrangement and the base is all fixed in to the one end of locating lever and dead lever the installation department.
Furthermore, the end of the positioning rod and the end of the fixing rod far away from the base are both provided with a telescopic rod.
Furthermore, the surface of the telescopic rod is provided with scales.
Furthermore, an adjusting rod is arranged at one end, away from the fixed rod, of the telescopic rod connected with the fixed rod, and a spring is arranged between the fixed rod and the adjusting rod.
Further, the rotating part is rotary fixture, rotary fixture includes inlayer and skin, the inlayer is the rotation layer, the skin is the fixed bed, rotary fixture is fixed in centre of a circle locating support through outer cooperation locking bolt, the inlayer is located to the electron distancer.
Furthermore, the electronic range finder also comprises a display, and the electronic range finder is electrically connected with the display.
Furthermore, the electronic distance measuring instrument is a bidirectional infrared distance measuring instrument.
The beneficial effects of the utility model reside in that:
adopt the technical scheme provided by the utility model, arrange the centre of a circle of circular pressure-bearing equipment in with electronic distance meter through centre of a circle locating support, then open electronic distance meter, drive electronic distance meter through the rotating part and rotate, electronic distance meter measures circular pressure-bearing equipment internal diameter to note the maximum value and the minimum of circular pressure-bearing equipment internal diameter, both can calculate out the out-of-roundness of circular pressure-bearing equipment, the utility model discloses compare with traditional measuring method, can with the accurate center to circular pressure-bearing equipment of location of electronic distance meter to the out-of-roundness to circular pressure-bearing equipment carries out the precision measurement.
Drawings
Fig. 1 is a schematic structural view of the present invention;
FIG. 2 is a cross-sectional view taken along line A-A of FIG. 1;
FIG. 3 is a schematic structural view of the roundness measurement of the circular pressure-bearing equipment of the present invention;
description of reference numerals:
1. an electronic rangefinder; 2. a rotating part; 3. a base; 4. a connecting bolt; 5. positioning a rod; 6. a telescopic rod; 7. a spring; 8. adjusting a rod; 9. locking the bolt; 10. and (5) fixing the rod.
Detailed Description
In order to explain the technical content, the objects and the effects of the present invention in detail, the following description is made with reference to the accompanying drawings in combination with the embodiments.
Referring to fig. 1 to 3, a roundness measuring apparatus includes an electronic distance measuring apparatus 1 and a positioning and mounting assembly. Location installation component includes rotating part 2, centre of a circle locating support and installing support, and rotating part 2 locates on the centre of a circle locating support just centre of a circle locating support can be the inner diameter regulation of circular shape volume of awaiting measuring thing so that rotating part 2 is located the circular shape circle axle that volume of awaiting measuring thing corresponds according to cross sectional shape, and rotating part 2 winds the circle axle rotates, the installing support forms the installation department with centre of a circle locating support jointly, and electronic distancer 1 locates on rotating part 2, electronic distancer 1's range finding direction is towards perpendicular to circle axle direction.
The use principle is as follows:
arrange electronic distance measuring instrument 1 in the centre of a circle of circular pressure-bearing equipment's cross-section through centre of a circle locating support on, then open electronic distance measuring instrument 1, drive electronic distance measuring instrument 1 through rotating part 2 and rotate, electronic distance measuring instrument 1 measures circular pressure-bearing equipment internal diameter to record the maximum value and the minimum of circular pressure-bearing equipment internal diameter, both can calculate out circular pressure-bearing equipment's out-of-roundness.
Referring to fig. 1 and 2, the circle center positioning bracket of the technical scheme includes a base and two positioning rods 5, the two positioning rods 5 are identical in length, the mounting bracket is a fixing rod 10, the two positioning rods 5 and the fixing rod 10 are horizontally arranged at intervals along the periphery of the base, and one ends of the positioning rods 5 and one ends of the fixing rods 10 are fixed on the base to form mounting portions. In order to improve the utility model discloses be fixed in circular pressure-bearing equipment's steadiness, can arrange two locating levers 5 and dead lever 10 equidistant, the angle that distributes promptly is arranged for 120 circumference arrays, and the base center is located to rotating part 2. The installation part adopting the technical scheme is composed of the positioning rod 5, the fixing rod 10 and the base, the structure is simple, the length of the required positioning rod 5 and the length of the fixing rod 10 are calculated according to the diameter of the measured circular pressure-bearing equipment, namely the length of the positioning rod 5 and the length of the fixing rod 10 are equal to the radius of the circular pressure-bearing equipment, the end parts of the positioning rod 5 and the fixing rod 10 are abutted against the inner wall of the circular pressure-bearing equipment, and the circle center of the circular pressure-bearing equipment can be accurately found. In order to facilitate replacing the fixing rod 10 and the positioning rod 5, one ends of the fixing rod 10 and the positioning rod 5 are detachably connected with the base through the connecting bolt 4.
Referring to fig. 1 and 2, the positioning rod 5 and the fixing rod 10 of the present technical solution are both provided with a telescopic rod 6 at the end far away from the base. By adopting the roundness measuring instrument of the technical scheme, when the roundness of the circular pressure-bearing equipment with different diameters is measured, the positioning rod 5 and the fixing rod 10 do not need to be replaced, the circle center of the circular pressure-bearing equipment can be accurately positioned only by extending or compressing the three telescopic rods 6 by the same length, and the use is convenient.
Referring to fig. 1 and 2, the surface of the telescopic rod 6 of the present technical solution is provided with scales. By adopting the technical scheme, the three telescopic rods 6 can be accurately controlled to extend out or compress the same length (the length of the three telescopic rods 6 which extend out or compress is prevented from being inconsistent, so that the electronic distance measuring instrument 1 cannot be used for positioning the circle center of the circular pressure-bearing equipment, and therefore measuring errors are generated), and the roundness of the circular pressure-bearing equipment is accurately measured.
Referring to fig. 1 and 2, in the technical scheme, an adjusting rod 8 is arranged at one end, far away from a fixing rod 10, of a telescopic rod 6 connected with the fixing rod 10, and a spring 7 is arranged between the fixing rod 10 and the adjusting rod 8. The compression range of the spring 7 is within the wall thickness and roundness variation range of the circular pressure-bearing equipment, and the front end of the adjusting rod 8 is round, so that the fixing effect of the roundness measuring instrument of the whole circular pressure-bearing equipment in the measuring process is achieved. Specifically, according to the inner diameter of the measured circular pressure-bearing equipment, the lengths of two telescopic rods 6 without an adjusting rod 8 are adjusted to the corresponding radius of the circular pressure-bearing equipment to determine the circle center, then the telescopic rods 6 with the adjusting rods 8 are adjusted, the adjusting rods 8 are fixed on the inner wall of the circular pressure-bearing equipment by using springs 7, and the roundness measuring instrument of the whole circular pressure-bearing equipment can be stably fixed on the inner wall of the measured circular pressure-bearing equipment.
Referring to fig. 1 and 2, rotary fixture 2 of this technical scheme is rotary fixture, and rotary fixture includes inlayer and skin, and the inlayer is the rotation layer, and the skin is the fixed bed, rotary fixture is fixed in centre of a circle locating support through outer cooperation locking bolt 9, and electronic distance meter 1 locates the inlayer. Adopt this technical scheme, rotating part 2 is fixed in centre of a circle locating support through locking bolt 9, and the inlayer is located to electron distancer 1, is convenient for change electron distancer 1 or maintains electron distancer 1.
Referring to fig. 1 and 2, the present technical solution further includes a display, and the electronic distance meter 1 is electrically connected to the display. By adopting the technical scheme, the distance measured by the electronic distance measuring instrument 1 can be conveniently recorded.
Referring to fig. 1 and 2, the electronic distance meter 1 according to the present embodiment is a two-way infrared distance meter. Adopt two-way infrared distance measuring instrument, not only can improve measurement of efficiency, can compare the distance that two equidirectional infrared distance measuring instrument measured moreover to further improve the accuracy to circular pressure-bearing equipment's roundness measurement.
Example 1
Referring to fig. 1 to 3, a roundness measuring instrument, including circular pressure-bearing equipment, electronic distance measuring instrument 1, display and location installation component, electronic distance measuring instrument 1 is connected with the display electricity, and electronic distance measuring instrument 1 of this embodiment is two-way infrared distance measuring instrument, adopts two-way infrared distance measuring instrument, not only can improve measurement efficiency, can compare the distance that two equidirectional infrared distance measuring instrument measured moreover to further improve the accuracy to circular pressure-bearing equipment's roundness measurement. The location installation component comprises a rotating part 2, a circle center positioning support and an installation support, the rotating part 2 is arranged on the circle center positioning support, the circle center positioning support can be adjusted according to the inner diameter of circular pressure-bearing equipment, the cross section shape of the rotating part is circular, the rotating part 2 is located on a circular center shaft corresponding to the circular pressure-bearing equipment, the rotating part 2 winds the circular center shaft rotates, the installation support and the circle center positioning support jointly form an installation part, the electronic range finder 1 is arranged on the rotating part 2, and the range finding direction of the electronic range finder 1 is perpendicular to the direction of the circular center shaft.
Example 2
Referring to fig. 1 to 3, a roundness measuring instrument, including circular pressure-bearing equipment, electronic distance measuring instrument 1, display and location installation component, electronic distance measuring instrument 1 is connected with the display electricity, and electronic distance measuring instrument 1 of this embodiment is two-way infrared distance measuring instrument, adopts two-way infrared distance measuring instrument, not only can improve measurement efficiency, can compare the distance that two equidirectional infrared distance measuring instrument measured moreover to further improve the accuracy to circular pressure-bearing equipment's roundness measurement. The location installation component comprises a rotating part 2, a circle center positioning support and an installation support, the rotating part 2 is arranged on the circle center positioning support, the circle center positioning support can be adjusted according to the inner diameter of circular pressure-bearing equipment, the cross section shape of the rotating part is circular, the rotating part 2 is located on a circular center shaft corresponding to the circular pressure-bearing equipment, the rotating part 2 winds the circular center shaft rotates, the installation support and the circle center positioning support jointly form an installation part, the electronic range finder 1 is arranged on the rotating part 2, and the range finding direction of the electronic range finder 1 is perpendicular to the direction of the circular center shaft. The centre of a circle locating support of this embodiment includes base and two locating levers 5, and two locating levers 5's length is unanimous, and the installing support is a dead lever 10, two locating lever 5 and a dead lever 10 all are fixed in the base and form the installation department along base week interval horizontal arrangement and the one end of locating lever 5 and dead lever 10. In order to improve the utility model discloses be fixed in circular pressure-bearing equipment's steadiness, can arrange two locating levers 5 and dead lever 10 equidistant, the angle that distributes promptly is arranged for 120 circumference arrays, and the base center is located to rotating part 2. The installation part adopting the technical scheme is composed of the positioning rod 5, the fixing rod 10 and the base, the structure is simple, the length of the required positioning rod 5 and the length of the fixing rod 10 are calculated according to the diameter of the measured circular pressure-bearing equipment, namely the length of the positioning rod 5 and the length of the fixing rod 10 are equal to the radius of the circular pressure-bearing equipment, the end parts of the positioning rod 5 and the fixing rod 10 are abutted against the inner wall of the circular pressure-bearing equipment, and the circle center of the circular pressure-bearing equipment can be accurately found. In order to facilitate replacing the fixing rod 10 and the positioning rod 5, one ends of the fixing rod 10 and the positioning rod 5 are detachably connected with the base through the connecting bolt 4.
Further, referring to fig. 1 and 2, the positioning rod 5 and the fixing rod 10 of the present embodiment are both provided with a telescopic rod 6 at an end away from the base. By adopting the roundness measuring instrument of the technical scheme, when the roundness of the circular pressure-bearing equipment with different diameters is measured, the positioning rod 5 and the fixing rod 10 do not need to be replaced, the circle center of the circular pressure-bearing equipment can be accurately positioned only by extending or compressing the three telescopic rods 6 by the same length, and the use is convenient. The surface of the telescopic rod 6 of the embodiment is provided with scales. By adopting the technical scheme, the three telescopic rods 6 can be accurately controlled to extend out or compress the same length (the length of the three telescopic rods 6 which extend out or compress is prevented from being inconsistent, so that the electronic distance measuring instrument 1 cannot be used for positioning the circle center of the circular pressure-bearing equipment, and therefore measuring errors are generated), and the roundness of the circular pressure-bearing equipment is accurately measured. In this embodiment, an adjusting rod 8 is disposed at an end of the telescopic rod 6 connected to the fixing rod 10, which is far away from the fixing rod 10, and a spring 7 is disposed between the fixing rod 10 and the adjusting rod 8. The compression range of the spring 7 is within the wall thickness and roundness variation range of the circular pressure-bearing equipment, and the front end of the adjusting rod 8 is round, so that the fixing effect of the roundness measuring instrument of the whole circular pressure-bearing equipment in the measuring process is achieved. Specifically, according to the inner diameter of the measured circular pressure-bearing equipment, the lengths of two telescopic rods 6 without an adjusting rod 8 are adjusted to the corresponding radius of the circular pressure-bearing equipment to determine the circle center, then the telescopic rods 6 with the adjusting rods 8 are adjusted, the adjusting rods 8 are fixed on the inner wall of the circular pressure-bearing equipment by using springs 7, and the roundness measuring instrument of the whole circular pressure-bearing equipment can be stably fixed on the inner wall of the measured circular pressure-bearing equipment.
Further, referring to fig. 1 and 2, the rotating part 2 of this embodiment is a rotary fixture, and the rotary fixture includes inlayer and skin, and the inlayer is the rotating layer, and the skin is the fixed bed, the rotary fixture is fixed in centre of a circle locating support through outer cooperation locking bolt 9, and electronic distance measuring instrument 1 locates the inlayer. Adopt this technical scheme, rotating part 2 is fixed in centre of a circle locating support through locking bolt 9, and the inlayer is located to electron distancer 1, is convenient for change electron distancer 1 or maintains electron distancer 1.
The above mentioned is only the embodiment of the present invention, and not the limitation of the patent scope of the present invention, all the equivalent transformations made by the contents of the specification and the drawings, or the direct or indirect application in the related technical field, are included in the patent protection scope of the present invention.
Claims (8)
1. A roundness measuring instrument characterized in that: including electronic distancer and location installation component, location installation component includes rotating part, centre of a circle locating support and installing support, the rotating part is located on the centre of a circle locating support just centre of a circle locating support can be the internal diameter regulation of circular shape volume of awaiting measuring thing according to cross sectional shape so that the rotating part is located the circular shape of awaiting measuring thing and corresponds on the circle axle, the rotating part winds the circle axle rotates, the installing support forms the installation department with centre of a circle locating support jointly, electronic distancer locates on the rotating part, electronic distancer's range finding direction is the orientation perpendicular to circle axle direction.
2. The roundness measuring instrument according to claim 1, wherein: the circle center positioning support comprises a base and two positioning rods, the length of each positioning rod is consistent, the mounting support is a fixing rod, the two positioning rods and the fixing rod are horizontally arranged at intervals along the periphery of the base, and one ends of the positioning rods and the fixing rod are fixed on the base to form the mounting portion.
3. The roundness measuring instrument according to claim 2, wherein: the one end that the base was kept away from to locating lever and dead lever all is equipped with a telescopic link.
4. The roundness measuring instrument according to claim 3, wherein: the surface of the telescopic rod is provided with scales.
5. The roundness measuring instrument according to claim 3, wherein: an adjusting rod is arranged at one end, far away from the fixed rod, of the telescopic rod connected with the fixed rod, and a spring is arranged between the fixed rod and the adjusting rod.
6. The roundness measuring instrument according to claim 1, wherein: the rotating part is rotary fixture, rotary fixture includes inlayer and skin, the inlayer is the rotation layer, the skin is the fixed bed, rotary fixture is fixed in centre of a circle locating support through outer cooperation locking bolt, the inlayer is located to the electron distancer.
7. The roundness measuring instrument according to claim 1, wherein: the electronic range finder is electrically connected with the display.
8. The roundness measuring instrument according to claim 1, wherein: the electronic distance measuring instrument is a bidirectional infrared distance measuring instrument.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121012916.0U CN214951165U (en) | 2021-05-12 | 2021-05-12 | Roundness measuring instrument |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121012916.0U CN214951165U (en) | 2021-05-12 | 2021-05-12 | Roundness measuring instrument |
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| Publication Number | Publication Date |
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| CN214951165U true CN214951165U (en) | 2021-11-30 |
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| CN202121012916.0U Active CN214951165U (en) | 2021-05-12 | 2021-05-12 | Roundness measuring instrument |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113358054A (en) * | 2021-05-12 | 2021-09-07 | 福建省锅炉压力容器检验研究院漳州分院 | Roundness measuring instrument and roundness measuring method |
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2021
- 2021-05-12 CN CN202121012916.0U patent/CN214951165U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113358054A (en) * | 2021-05-12 | 2021-09-07 | 福建省锅炉压力容器检验研究院漳州分院 | Roundness measuring instrument and roundness measuring method |
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