CN201897457U - Extension type wide-measuring-range inner diameter measuring tool - Google Patents
Extension type wide-measuring-range inner diameter measuring tool Download PDFInfo
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- CN201897457U CN201897457U CN2010206623658U CN201020662365U CN201897457U CN 201897457 U CN201897457 U CN 201897457U CN 2010206623658 U CN2010206623658 U CN 2010206623658U CN 201020662365 U CN201020662365 U CN 201020662365U CN 201897457 U CN201897457 U CN 201897457U
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- anchor ear
- ruler
- measuring tool
- diameter measuring
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Abstract
The utility model relates to an extension type wide-measuring-range inner diameter measuring tool, which has the measuring range greater than 6000mm and consists of a ruler body, a ruler head and a ruler tail, wherein the ruler body comprises a main ruler and an extension rod, the extension rod is positioned between the main ruler and the ruler head, the main ruler is formed by connecting two sections, the two sections are connected through a hoop locking device, the hoop locking device comprises a pair of pipe joints, a center positioning ring and a group of hoops formed into circles by a plurality of arc sections, the pipe joints are respectively welded at opposite end openings of two adjacent ruler body sections, an annular wedge groove is formed on the outer cylindrical surface of each pipe joint and is used for being matched with the hoops, a positioning step stop opening is formed at a cut angle part of the inner cylindrical surface and the end surface of each pipe joint, the center positioning ring is positioned in the positioning step stop opening of the two pipe joints, a plurality of screw holes are distributed on the circumference surface of the center positioning ring, the hoops have the U-shaped cross section, lug parts of each loop are a pair of inclined wedges which are matched with the wedge grooves of the pipe joints, the hoops are connected with the center positioning ring through screws, and two pipe joints are tightly wedged through the inclined wedges of the loops so that the two sections of main rulers are fixedly connected. The extension type wide-measuring-range inner diameter measuring tool can meet the measurement requirement of large-size workpieces.
Description
Technical field
The utility model relates to the length measurer, is specifically related to diameter measuring tool in a kind of spreading formula wide range.
Background technology
There are Chengdu measuring and cutting tool company limited, Measuring ﹠ Cutting Tools Plant, Qinghai and Harbin measuring and cutting tool group company etc. in the producer of the wide range of China's production at present micrometer inside caliper, and maximum range is 6000mm.Surpass this size, because material and structural reason, the blade distortion is big, and this all also is in the exploratory stage at home and abroad, finished product is not all arranged for buying both at home and abroad.For satisfying in the Large-Scale Equipment industrial processes requirement to large-scale internal diameter size precision measurement, surpass the large diameter precision measurement of 6000mm as Three Gorges hydraulic generator unit, more domestic enterprises develop large-scale integral formula micrometer inside caliper voluntarily and are solved.Large-scale integral formula micrometer inside caliper belongs to the monoblock type large diameter measurement mechanism of fixed measure.Its advantage is that indicating value is stable, directly measures, and without operating personnel's spreading, but also has serious problem: one, only energy measurement single size, not extensible.The occasion of needs being measured a series of sizes just can't solve, and often needs to be equipped with many monoblock type micrometer inside calipers, its two, the cost of transportation and packing monoblock type micrometer inside caliper is too big.Because the monoblock type micrometer inside caliper size of mounting site that mails to the power station is usually more than 7000mm, for transport one only more than 20 kilogram measurer need truck more than 10 tons, and to carry out anticollision, the multi-layer packaging of vibration proof modification has more strengthened production cost.
The utility model content
The purpose of this utility model provides diameter measuring tool in a kind of wide range of extensible, and its range is 6000～10000mm, can satisfy the measurement requirement of large-scale workpiece.The main difficult point that designs this measurer is:
1. for ease of transportation, the main scale of measurer is designed to two sections, two sections are adopted any mode to connect, and could guarantee the right alignment of each section, and are convenient to adorn, tear open.
2. measurer is very long, and how the meeting downwarp reduces amount of deflection during use, guarantees measuring accuracy.
3. measurer is very long, how to reduce weight as far as possible, is convenient to measuring operation, to alleviate labor intensity of operating personnel.
At above-mentioned difficult point, the utility model adopts following technical proposals:
Diameter measuring tool in a kind of spreading formula wide range, its range are made up of blade and the chi head, the chi tail that are connected the blade two ends greater than 6000mm, and described blade comprises main scale and extension bar, and extension bar is between main scale and chi head; Described main scale connects and composes by two sections; Adopt the anchor ear locker to connect between two sections, this anchor ear locker comprises pair of pipes joint, a centralized positioning ring, one group of anchor ear by some segmental arc combination lopping, described pipe adapter is welded on the port in opposite directions of adjacent two blade sections respectively, have a ring wedge groove on the outer cylinder of pipe adapter, be used for cooperating with anchor ear, the end face of pipe adapter and inner cylinder angle of cut portion have the positioning step seam, and described centralized positioning ring is positioned at the positioning step seam of two pipe adapters; Be distributed with some screws on the periphery of centralized positioning ring; The cross sectional shape of described anchor ear is " U " shape, its ear is a pair of wedge, the wedge groove of this wedge and pipe adapter is suitable, screw perforation is arranged on the anchor ear, screw on its quantity, the corresponding centralized positioning dish in position, this anchor ear is connected with the centralized positioning ring by screw, and the wedge of anchor ear makes two sections main scales fixedly connected two pipe adapter wedgings.
The contour shape of described blade is a spindle, and its diameter is reduced to the two ends dullness by mid point.
Described main scale is made with thin-wall steel tube, and the steel pipe inwall is lined with ring stiffener; The wall thickness of described steel pipe is 1mm.
The length of described extension bar is 500mm, 1000mm, three kinds of specifications of 1500mm, but combination in any.
Described extension bar is furnished with core bar.
Described chi head adopts thousand fens micrometer heads, and described chi tail adopts dial gauge.
Technique effect of the present utility model:
Because the blade main scale is divided into two sections, be convenient to transportation, two sections main scales adopt the anchor ear locker to connect, and right alignment is good, the measuring accuracy height, and easy to loading and unloading; The contour shape of blade is a spindle, and inwall is lined with ring stiffener, and structural strength is good, and amount of deflection is little during use; Blade is made with thin-wall steel tube, and weight is little, is convenient to operation, can alleviate labor intensity of operating personnel.
Description of drawings
Fig. 1 is profile (the not comprising extension bar) figure of this measurer;
Fig. 2 is chi header structure (local A among Fig. 1) figure of this measurer;
Fig. 3 is main scale inner lining structure (Local C among Fig. 1) figure of this measurer;
Fig. 4 is two sections main scale syndetons (local B among Fig. 1) figure of this measurer;
Fig. 5 is the extension bar structural representation.
Embodiment
Referring to Fig. 1: diameter measuring tool in this spreading formula wide range, comprise main scale 1 and the chi head, the chi tail 2 that are connected the blade two ends, other is furnished with the extension bar 5 (as shown in Figure 5) that a group length does not wait, during use, can be according to the size of measured workpiece, choose the extension bar 5 that is fit to length, be contained between main scale 1 and the chi head 2.Main scale 1 adds two chi heads 2 and forms 6000mm reference dimension.Extension bar 5 length are each two of 500mm, 1000mm, 1500mm, the small size extension bar uses specification to be 25mm, 50mm, 100mm, 150mm, 200mm, 400mm extension bar one cover, can measure arbitrary dimension in 6000～10000mm scope by the combination spreading, minimum measurement range 6000～6025mm, maximum measurement range 9975～10000mm, by spreading, cover 6000～10000mm gamut.
The high Strong degree steel plate welding fabrication of main scale 1 usefulness 1mm, but weight reduction like this, inwall are lined with ring stiffener 4, and ((as shown in Figure 3) to strengthen structural strength, improves Gang.
The structure of extension bar 5 is as shown in Figure 5: it is made up of body 5-1, screwed pipe joint 5-3,5-4, core bar 5-2, and screwed pipe joint 5-3,5-4 are welded on the two ends of body 5-1, wherein, pipe adapter 5-3 is a pin thread, be connected with main scale 1, pipe adapter 5-4 is a female screw, is connected with chi head 2.Core bar 5-2 can float, and is used to transmit size.
Extension bar 5 constitutes blade with main scale 1, and the contour shape of whole blade is designed to spindle, and its diameter is reduced to the two ends dullness by mid point, that is to say, extension bar 5 all is with tapering with main scale 1.Like this, the amount of deflection of measurer is little, can guarantee measuring accuracy.
Principal feature of the present invention, be that main scale 1 is designed to two sections, adopt anchor ear locker 3 to connect, referring to Fig. 4, this anchor ear locker 3 comprises pair of pipes joint 3-1, centralized positioning ring 3-4, one group of anchor ear 3-2 by some segmental arc combination lopping, pipe adapter 3-1 is welded on the port in opposite directions of two main scale figures respectively, have a ring wedge groove on the outer cylinder of pipe adapter 3-1, be used for cooperating with anchor ear 3-2, the end face of pipe adapter 3-1 and inner cylinder angle of cut portion have the positioning step seam, and locating ring 3-4 is positioned at the positioning step seam of two pipe adapters; Be distributed with some screws on the periphery of locating ring 3-4; The cross sectional shape of anchor ear 3-2 is " U " shape, its ear is a pair of wedge, the wedge groove of this wedge and pipe adapter 3-1 is suitable, on the anchor ear 3-2 screw perforation is arranged, screw on its quantity, the position corresponding centralized positioning ring 3-4, this anchor ear 3-2 is connected with centralized positioning ring 3-4 by screw 3-3, and the wedge of anchor ear 3-2 makes two sections main scales fixedly connected two pipe adapter 3-1 wedgings.This structure can guarantee the right alignment of blade.
Referring to Fig. 2: chi head 2 adopts thousand fens micrometer heads, comprises that differential head 2-3, switching chi head 2-1, spreading adjust chi head 2-2 and regulating ring 2-4 thereof.
Chi tail and chi head 2 similar, difference only are to replace thousand fens micrometer heads with dial gauge, and all the other structures are identical.
Thousand minutes micrometer heads, dial gauges all are existing commercial approved product.Micrometer head can be selected Qinghai measurer company product for use in thousand minutes, and dial gauge can be selected Chengdu measurer company product for use.
The manufacturing accuracy of this measurer: the gamut limits of error ± 0.10mm; Repeatability is not more than ± 0.03mm.
Claims (6)
1. diameter measuring tool in the spreading formula wide range, its range be greater than 6000mm, is made up of blade and the chi head, the chi tail that are connected the blade two ends, and described blade comprises main scale and extension bar, and extension bar is between main scale and chi head; It is characterized in that: described main scale connects and composes by two sections; Adopt the anchor ear locker to connect between two sections, this anchor ear locker comprises pair of pipes joint, a centralized positioning ring, one group of anchor ear by some segmental arc combination lopping, described pipe adapter is welded on the port in opposite directions of adjacent two blade sections respectively, have a ring wedge groove on the outer cylinder of pipe adapter, be used for cooperating with anchor ear, the end face of pipe adapter and inner cylinder angle of cut portion have the positioning step seam, and described centralized positioning ring is positioned at the positioning step seam of two pipe adapters; Be distributed with some screws on the periphery of centralized positioning ring; The cross sectional shape of described anchor ear is " U " shape, its ear is a pair of wedge, the wedge groove of this wedge and pipe adapter is suitable, screw perforation is arranged on the anchor ear, screw on its quantity, the corresponding centralized positioning dish in position, this anchor ear is connected with the centralized positioning ring by screw, and the wedge of anchor ear makes two sections main scales fixedly connected two pipe adapter wedgings.
2. diameter measuring tool in the spreading formula wide range according to claim 1, it is characterized in that: the contour shape of described blade is a spindle, its diameter is reduced to the two ends dullness by mid point.
3. diameter measuring tool in the spreading formula wide range according to claim 1 is characterized in that described main scale is made with thin-wall steel tube, and the steel pipe inwall is lined with ring stiffener; The wall thickness of described steel pipe is 1mm.
4. diameter measuring tool in the spreading formula wide range according to claim 1 is characterized in that the length of described extension bar is 500mm, 1000mm, three kinds of specifications of 1500mm, but combination in any.
5. diameter measuring tool in the spreading formula wide range according to claim 1 is characterized in that described extension bar is furnished with core bar.
6. diameter measuring tool in the spreading formula wide range according to claim 1 is characterized in that, described chi head adopts thousand fens micrometer heads, and described chi tail adopts dial gauge.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206623658U CN201897457U (en) | 2010-12-10 | 2010-12-10 | Extension type wide-measuring-range inner diameter measuring tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206623658U CN201897457U (en) | 2010-12-10 | 2010-12-10 | Extension type wide-measuring-range inner diameter measuring tool |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201897457U true CN201897457U (en) | 2011-07-13 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010206623658U Expired - Lifetime CN201897457U (en) | 2010-12-10 | 2010-12-10 | Extension type wide-measuring-range inner diameter measuring tool |
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| CN (1) | CN201897457U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102128580A (en) * | 2010-12-10 | 2011-07-20 | 东方电气集团东方电机有限公司 | Elongated large-range inside diameter measurer |
| CN104976940A (en) * | 2014-04-11 | 2015-10-14 | 上海启发电子科技有限公司 | Detection tool for detecting internal diameter of circular ting type work piece |
| CN107270801A (en) * | 2017-05-09 | 2017-10-20 | 中国科学院合肥物质科学研究院 | A kind of special-shaped armor inside diameter detection device of superconducting conductor |
-
2010
- 2010-12-10 CN CN2010206623658U patent/CN201897457U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102128580A (en) * | 2010-12-10 | 2011-07-20 | 东方电气集团东方电机有限公司 | Elongated large-range inside diameter measurer |
| CN102128580B (en) * | 2010-12-10 | 2012-10-10 | 东方电气集团东方电机有限公司 | Elongated large-range inside diameter measurer |
| CN104976940A (en) * | 2014-04-11 | 2015-10-14 | 上海启发电子科技有限公司 | Detection tool for detecting internal diameter of circular ting type work piece |
| CN107270801A (en) * | 2017-05-09 | 2017-10-20 | 中国科学院合肥物质科学研究院 | A kind of special-shaped armor inside diameter detection device of superconducting conductor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20110713 Effective date of abandoning: 20121010 |