CN207365868U - The measurement of elongation instrument of thermal stretching bolt - Google Patents
The measurement of elongation instrument of thermal stretching bolt Download PDFInfo
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- CN207365868U CN207365868U CN201721562292.3U CN201721562292U CN207365868U CN 207365868 U CN207365868 U CN 207365868U CN 201721562292 U CN201721562292 U CN 201721562292U CN 207365868 U CN207365868 U CN 207365868U
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Abstract
The measurement of elongation instrument of the utility model thermal stretching bolt, when the survey tool is used for through hole class thermal stretching bolt, including the first vernier scale, the second vernier scale, the first main scale, the second main scale and Duo Gen survey stock；One end and survey stock where first main scale and the second main scale zero graduation is to be detachably connected relation between each survey stock to be detachably connected relation；One end where first main scale zero graduation is connected at one end by each stock of surveying of concatenation with the second main scale zero graduation.When the survey tool is used for blind hole class thermal stretching bolt, including vernier scale, main scale, blind hole gauge head and Duo Gen survey stock；One end and survey stock where main scale zero graduation is to be detachably connected relation between each survey stock to be detachably connected relation；Blind hole gauge head one end is to be detachably connected relation with surveying stock；One end where main scale zero graduation is connected by each stock of surveying of concatenation with blind hole gauge head.The utility model survey tool can more accurate measurement go out the stretch value of thermal stretching bolt.
Description
Technical field
It the utility model is related to the measurement of elongation instrument of a kind of survey tool, more particularly to thermal stretching bolt.
Background technology
The hydro-generating Unit of hydroenergy storage station installation, in maintenance process, it is necessary to connection to large-sized structural component
Or conjunction bolt is dismantled and fastens back dress, it is tight for the placement space limitation for avoiding common wrench from fastening, or hydraulic tensioning
Gu mode covers the limitation of space brought than the hydraulic elongator of bolt larger diameter again outside bolt, limited big in space
Type component fastening bolt uses thermal stretching bolt more.
Thermal stretching bolt is provided with through hole or blind hole in bolt-center.Heating rod or flame are inserted into bolt-center hole
Rifle carries out heating elongation fastening.At present, be directed to heating elongation fastening bolt measurement of elongation, traditional measurement instrument usually by
The survey stock with fixed end and depthometer as shown in Figure 2 as described in Figure 1 is formed.Wherein：
When thermal stretching bolt is provided that through hole in bolt-center, then inserted completely as shown in figure 3, stock will be surveyed when measuring
In the hole for entering bolt one end, the then insertion depth ruler in the hole of the other end of bolt, until in bolt hole depthometer top
End and the nib contacts for surveying stock, the depth for finally measuring depthometer add the length for surveying stock as the total of thermal stretching bolt
Length, the difference of the front and rear total length of thermal stretching bolt heating is the stretch value of thermal stretching bolt.
When thermal stretching bolt is provided that blind hole in bolt-center, then it is inserted into as shown in figure 4, stock will be surveyed when measuring
In the blind hole of bolt-center, the distance between stock tail end and bolt end face are then measured by depthometer, will finally survey stock
Length subtract and survey the distance between stock tail end and bolt end face and obtain the total length of thermal stretching bolt, thermal stretching bolt adds
The difference of total length before and after heat is the stretch value of thermal stretching bolt.
But there are following defect for the measurement of above-mentioned thermal stretching bolt elongate value：
Firstth, at present, the diameter of heating elongation bolt is different used in various occasions, it measures aperture and depth
It is different, therefore there are measuring staff specifications and models not general case.
Secondth, have that gap and bolt end face are not smooth enough because surveying between stock and bolt hole, can not ensure during measurement every time
Survey absolute vertical in stock, depthometer and bolt end face.The state of preferable measurement is illustrated in figure 3, is grown as shown in Figure 5 a to survey
The inclined state of bar, is the state for surveying stock and depthometer decentraction as shown in Figure 5 b, as shown in Figure 5 c for survey stock tip and
There are the state of impurity between depthometer；And above-mentioned 2 measurements of survey tool can not ensure in same position, and tilt, no
With one heart and impurity can all bring measurement error, particularly blind hole, survey stock fixed end due to being not in contact with bolt end face and nothing
Method is fixed, and it is even more impossible to ensure for measurement accuracy.
3rd, measure relatively time-consuming；Every time during measurement, depthometer needs to select suitable standard component, and needs to read
Get the total length for being added after depthometer reading is converted with survey stock and just obtaining thermal stretching bolt.
Utility model content
The first of the utility model the shortcomings that aiming to overcome that the prior art and deficiency, there is provided a kind of thermal stretching bolt
Measurement of elongation instrument, the stretch value of the thermal stretching bolt of through hole class can be accurately measured by the instrument.
The second of the utility model the shortcomings that aiming to overcome that the prior art and deficiency, there is provided a kind of thermal stretching bolt
Measurement of elongation instrument, the stretch value of the thermal stretching bolt of blind hole class can be accurately calculated by the instrument.
First purpose of the utility model is achieved through the following technical solutions：A kind of measurement of elongation work of thermal stretching bolt
Tool, it is characterised in that survey stock including the first vernier scale, the second vernier scale, the first main scale, the second main scale and Duo Gen；
First vernier scale is arranged on the first main scale, and the second vernier scale is arranged on the second main scale；First master
One end and survey stock where ruler and the second main scale zero graduation is to be detachably connected between each survey stock to be detachably connected relation
Relation；
Stock and the second main scale zero graduation place one are surveyed in one end where the first main scale zero graduation by each of concatenation
End connection.
Preferably, first main scale and one end where the second main scale zero graduation and survey between stock and respectively survey stock
Between be detachably connected by way of screw thread.
Preferably, the first position-limit mechanism for preventing the first vernier scale from skidding off the first main scale is provided with first main scale,
The second position-limit mechanism for preventing the second vernier scale from skidding off the second main scale is provided with second main scale.
Further, first position-limit mechanism and the second position-limit mechanism are screw.
Preferably, the survey stock is cylinder, and the cross-sectional diameter for surveying stock is 10mm；Each stock of surveying is standard
Survey stock, it is each survey stock length it is identical；
The width of first main scale and the second main scale is 10~15mm, the measurement of first main scale and the second main scale
Scope is more than or equal to the long pole length of survey of a standard.
Second purpose of the utility model is achieved through the following technical solutions：A kind of measurement of elongation work of thermal stretching bolt
Tool, it is characterised in that survey stock including vernier scale, main scale, blind hole gauge head and Duo Gen；
The vernier scale is arranged on main scale；One end and survey stock where the main scale zero graduation are to be detachably connected pass
System, is respectively to be detachably connected relation between survey stock；Described blind hole gauge head one end is to be detachably connected relation with surveying stock；
One end where the main scale zero graduation is connected by each stock of surveying of concatenation with blind hole gauge head.
Preferably, one end where the main scale zero graduation and survey between stock, each survey between stock and blind hole gauge head
It is detachably connected between survey stock by way of screw thread.
Preferably, the other end of the blind hole gauge head is cone shape.
Preferably, the position-limit mechanism for preventing vernier scale from skidding off main scale is provided with the main scale.
Further, the position-limit mechanism is screw.
The utility model is had the following advantages relative to the prior art and effect：
(1) a kind of measurement of elongation instrument of thermal stretching bolt of the utility model include the first vernier scale, the second vernier scale,
First main scale, the second main scale and Duo Gen survey stock；Wherein one end of the first main scale and the second main scale is detachably to connect with surveying stock
Relation is connect, is to be detachably connected relation between each survey stock；Stock and the second main scale are surveyed in first main scale one end by each of concatenation
One end connects.Each piece survey stock and second master of the utility model survey tool in measurement process after the first main scale, concatenation
Ruler is vertical connection relation, and the first vernier scale and the second vernier scale can block the both ends of the surface of bolt, solve biography
Being surveyed during system survey tool measurement between stock surface and bolt hole has that gap and bolt end face are not smooth enough, and measurement every time can not be protected
Card surveys the absolute technical problem that is vertical and influencing measurement accuracy in stock, depthometer and bolt end face, and having accurately to survey
The advantages of measuring the stretch value of thermal stretching bolt of through hole class.In addition the utility model survey tool is in measurement, by the first trip
The length of survey stock after the reading and concatenation of the reading of scale and the first main scale, the second vernier scale and the second main scale is added both
It can obtain the total length of thermal stretching bolt, it is not necessary to convert again, therefore the utility model survey tool can be quickly and accurate
The true stretch value for measuring thermal stretching bolt.
(2) a kind of measurement of elongation instrument of thermal stretching bolt of the utility model include vernier scale, main scale, blind hole gauge head and
More survey stocks；Between one end of main scale and survey stock, respectively survey between stock and blind hole gauge head one end and survey between stock
To be detachably connected relation；Main scale one end is connected by each stock of surveying of concatenation with blind hole gauge head one end.The utility model measures
For instrument during thermal stretching bolt blind hole is measured, vernier scale can block bolt end face, solve traditional measurement instrument and exist
When measuring blind hole class thermal stretching bolt, since the fixed end for surveying stock is not in contact with bolt end face and can not fix to cause to measure
Precision it is even more impossible to guarantee technical problem, have can accurately measure through hole class thermal stretching bolt stretch value it is excellent
Point.In addition, the utility model survey tool measurement when directly according to the reading of main scale and vernier scale, concatenation after survey stock with
And the length of blind hole gauge head, that is, measurable obtains the total length of thermal stretching bolt, and the long pole length of survey after concatenating is directly according to survey
Stock radical and each length for surveying stock can be calculated, it is not necessary to converts, therefore the utility model measurement work
Tool can fast and accurately measure the stretch value of thermal stretching bolt.
(3) in the measurement of elongation instrument of the utility model thermal stretching bolt, including more survey stocks, wherein each is surveyed length
Bar is is detachably connected relation, in actual measurement process, a certain number of survey of concatenation can be selected to grow according to thermal stretching bolt
Bar, therefore the utility model survey tool disclosure satisfy that the measurement of elongation of the thermal stretching bolt of different size.
(4) the above-mentioned thermal stretching bolt elongate value survey tool for being directed to through hole class of the utility model, is dismantling wherein one
A vernier scale and main scale, and can be used to the measurement of the thermal stretching bolt elongate value of blind hole class after one blind head measurement head of increase,
Therefore in actual measurement process, it is only necessary to prepare a blind hole gauge head again in the thermal stretching bolt elongate value survey tool of through hole class
It can meet the measurement of the thermal stretching bolt elongate value of through hole class and blind hole class at the same time.
Brief description of the drawings
Fig. 1 is the survey stock with fixed end in traditional measurement instrument.
Fig. 2 is the depthometer in traditional measurement instrument.
Fig. 3 is the schematic diagram of traditional measurement instrument measurement through hole class thermal stretching bolt.
Fig. 4 is the schematic diagram of traditional measurement instrument measurement blind hole class thermal stretching bolt.
Fig. 5 a survey the inclined view of stock when being traditional measurement instrument measurement through hole class thermal stretching bolt.
Fig. 5 b survey stock when being traditional measurement instrument measurement through hole class thermal stretching bolt and the state of depthometer decentraction is shown
It is intended to.
There are miscellaneous between survey stock tip and depthometer when Fig. 5 c are traditional measurement instrument measurement through hole class thermal stretching bolts
The view of will.
Fig. 6 is the measurement of elongation tool construction schematic diagram of thermal stretching bolt in embodiment 1.
Fig. 7 is the measurement of elongation tool construction schematic diagram of thermal stretching bolt in embodiment 2.
Embodiment
The utility model is described in further detail with reference to embodiment and attached drawing, but the implementation of the utility model
Mode not limited to this.
Embodiment 1
Present embodiment discloses a kind of measurement of elongation instrument of thermal stretching bolt, as shown in fig. 6, including the first vernier scale
1st, the second vernier scale 2, the first main scale 3, the second main scale 4 and Duo Gen survey stock 5；
First vernier scale 1 is arranged on the first main scale 3, and the second vernier scale 2 is arranged on the second main scale 4；First main scale, 3 He
One end and survey stock where second main scale, 4 zero graduation is to be detachably connected pass between each survey stock to be detachably connected relation
System；
One end where first main scale zero graduation is connected at one end by each stock of surveying of concatenation with the second main scale zero graduation
Connect.
The first main scale and one end where the second main scale zero graduation and survey in the present embodiment between stock and each survey is grown
It is detachably connected between bar by way of screw thread.In the present embodiment, being provided with the first main scale prevents the first vernier
Ruler skids off the first position-limit mechanism of the first main scale, and prevent the second vernier scale from skidding off the second main scale second is provided with the second main scale
Position-limit mechanism.Wherein the first position-limit mechanism and the second position-limit mechanism can be screw.
In the present embodiment, stock is surveyed as cylinder, and the cross-sectional diameter for surveying stock is 10mm.In the present embodiment, respectively
The survey stock that stock is standard is surveyed, the length of each survey stock is identical.
In the present embodiment, the width of the first main scale and the second main scale is 10~15mm, the first main scale and the second main scale
Measurement range is more than or equal to the long pole length of survey of a standard.
The measurement of elongation instrument of the present embodiment thermal stretching bolt, when the elongation for needing the thermal stretching bolt for through hole class
When value measures, more survey stocks of concatenation can be selected according to the general total length of thermal stretching bolt, then by after concatenation
Survey stock to be inserted into the through hole of thermal stretching bolt, after survey stock after concatenation is inserted into the through hole of thermal stretching bolt, at it
Two connects one end of the first main scale and the second main scale respectively, and the first vernier scale and the second vernier scale are then blocked spiral shell respectively
The both ends of the surface of bolt, finally according to the reading of the first vernier scale and the first main scale, the second vernier scale and the second main scale reading and
The length of survey stock after concatenation is that can obtain the total length of thermal stretching bolt, the difference of the front and rear total length of thermal stretching bolt heating
The as stretch value of thermal stretching bolt.By it is above-mentioned as it can be seen that the present embodiment survey tool in measurement process the first main scale, concatenation after
Each survey stock and the second main scale be vertical connection relation, and the first vernier scale and the second vernier scale can block
The both ends of the surface of bolt, have gap between survey stock surface and bolt hole when solving the measurement of traditional measurement instrument and bolt end face are not
Enough smooth, measurement every time can not ensure to survey the absolute technology that is vertical and influencing measurement accuracy in stock, depthometer and bolt end face
Problem, has the advantages that the stretch value for the thermal stretching bolt that can accurately measure through hole class.In addition the present embodiment measurement work
Tool is in measurement, after the reading and concatenation of the reading of the first vernier scale and the first main scale, the second vernier scale and the second main scale
The length of survey stock be added and both can obtain the total length of thermal stretching bolt, it is not necessary to convert again, therefore the present embodiment is surveyed
Amount instrument can fast and accurately measure the stretch value of thermal stretching bolt.
Embodiment 2
Present embodiment discloses a kind of measurement of elongation instrument of thermal stretching bolt, as shown in fig. 7, comprises vernier scale 11,
Main scale 12, blind hole gauge head 13 and Duo Gen survey stock；
Vernier scale 11 is arranged on main 12 rulers；One end and survey stock where 12 zero graduation of main scale are to be detachably connected pass
System, is respectively to be detachably connected relation between survey stock；13 one end of blind hole gauge head is to be detachably connected relation with surveying stock；Blind hole is surveyed
The other end of head is cone shape.One end where main scale zero graduation is connected by each stock of surveying of concatenation with blind hole gauge head.
In the present embodiment, one end where main scale zero graduation and survey between stock, each survey between stock and blind hole gauge head
It is detachably connected between survey stock by way of screw thread.
In the present embodiment, the position-limit mechanism for preventing vernier scale from skidding off main scale is provided with main scale, the position-limit mechanism is spacing
Mechanism is screw.
In the present embodiment, stock is surveyed as cylinder, and the cross-sectional diameter for surveying stock is 10mm.In the present embodiment, respectively
The survey stock that stock is standard is surveyed, the length of each survey stock is identical.
In the present embodiment, the width of main scale is 10~15mm, and the measurement range of main scale is more than or equal to the survey of a standard
Long pole length.
The measurement of elongation instrument of the present embodiment thermal stretching bolt, when the elongation for needing the thermal stretching bolt for blind hole class
When value measures, more survey stocks of concatenation can be selected according to the general total length of thermal stretching bolt, and after concatenation
The upper blind hole gauge head of stock one end connection is surveyed, the upper main scale of other end connection, is then inserted into the logical of thermal stretching bolt by blind hole gauge head
Kong Zhong, and moving cursor ruler causes vernier scale to block bolt end face, finally according to the survey stock after vernier scale, concatenation and blind
The length of hole gauge head is that can obtain the total length of thermal stretching bolt, and the difference of the front and rear total length of thermal stretching bolt heating is that heat is stretched
The stretch value of stay bolt.It can be seen from the above, the present embodiment survey tool is during thermal stretching bolt blind hole is measured, vernier scale
Bolt end face can be blocked, solves traditional measurement instrument when measuring blind hole class thermal stretching bolt, due to surveying the fixation of stock
Termination is not in contact with bolt end face and can not fix to cause technical problem of the measurement accuracy it is even more impossible to guarantee, and having can be accurate
The advantages of measuring the stretch value of thermal stretching bolt of through hole class.In addition, the present embodiment survey tool direct basis in measurement
The length, that is, measurable of survey stock and blind hole gauge head after the reading of main scale and vernier scale, concatenation obtains the total of thermal stretching bolt
Length, and the long pole length of survey after concatenating can directly be calculated according to the length for surveying stock radical and each survey stock,
It need not convert, therefore the present embodiment survey tool can fast and accurately measure the stretch value of thermal stretching bolt.
The above-mentioned thermal stretching bolt elongate value survey tool for being directed to through hole class wherein in embodiment 1, is dismantling wherein one
A vernier scale and main scale, and the thermal stretching bolt for blind hole class of embodiment 2 is become after one blind head measurement head of increase
The measurement of stretch value, therefore in actual measurement process, it is only necessary to it is accurate again in the thermal stretching bolt elongate value survey tool of through hole class
A standby blind hole gauge head can meet the measurement of the thermal stretching bolt elongate value of through hole class and blind hole class at the same time.
Above-described embodiment is the preferable embodiment of the utility model, but the embodiment of the utility model and from above-mentioned
The limitation of embodiment, the change made under other any Spirit Essences and principle without departing from the utility model, modify, replace
Generation, combination, simplify, and should be equivalent substitute mode, is included within the scope of protection of the utility model.
Claims (10)
1. a kind of measurement of elongation instrument of thermal stretching bolt, it is characterised in that including the first vernier scale, the second vernier scale,
One main scale, the second main scale and Duo Gen survey stock；
First vernier scale is arranged on the first main scale, and the second vernier scale is arranged on the second main scale；First main scale and
One end and survey stock where second main scale zero graduation is to be detachably connected pass between each survey stock to be detachably connected relation
System；
One end where the first main scale zero graduation is connected at one end by each stock of surveying of concatenation with the second main scale zero graduation
Connect.
2. the measurement of elongation instrument of thermal stretching bolt according to claim 1, it is characterised in that first main scale and
Carried out between one end and survey stock where second main scale zero graduation and between each survey stock by way of screw thread detachable
Connection.
3. the measurement of elongation instrument of thermal stretching bolt according to claim 1, it is characterised in that on first main scale
The first position-limit mechanism for preventing the first vernier scale from skidding off the first main scale is provided with, being provided with second main scale prevents the second trip
Scale skids off the second position-limit mechanism of the second main scale.
4. the measurement of elongation instrument of thermal stretching bolt according to claim 3, it is characterised in that first position restrainer
Structure and the second position-limit mechanism are screw.
5. the measurement of elongation instrument of thermal stretching bolt according to claim 1, it is characterised in that the survey stock is circle
Cylindricality, the cross-sectional diameter for surveying stock is 10mm；Each to survey the survey stock that stock is standard, the length of each survey stock is identical；
The width of first main scale and the second main scale is 10~15mm, the measurement range of first main scale and the second main scale
The long pole length of survey more than or equal to a standard.
6. a kind of measurement of elongation instrument of thermal stretching bolt, it is characterised in that including vernier scale, main scale, blind hole gauge head and more
Root surveys stock；
The vernier scale is arranged on main scale；One end and survey stock where the main scale zero graduation are to be detachably connected relation,
It is to be detachably connected relation between each survey stock；Described blind hole gauge head one end is to be detachably connected relation with surveying stock；
One end where the main scale zero graduation is connected by each stock of surveying of concatenation with blind hole gauge head.
7. the measurement of elongation instrument of thermal stretching bolt according to claim 6, it is characterised in that the main scale zero graduation
Between the one end at place and survey stock, respectively survey between stock and carried out between blind hole gauge head and survey stock by way of screw thread
It is detachably connected.
8. the measurement of elongation instrument of thermal stretching bolt according to claim 6, it is characterised in that the blind hole gauge head
The other end is cone shape.
9. the measurement of elongation instrument of thermal stretching bolt according to claim 6, it is characterised in that set on the main scale
There is the position-limit mechanism for preventing vernier scale from skidding off main scale.
10. the measurement of elongation instrument of thermal stretching bolt according to claim 9, it is characterised in that the position-limit mechanism
For screw.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721562292.3U CN207365868U (en) | 2017-11-17 | 2017-11-17 | The measurement of elongation instrument of thermal stretching bolt |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721562292.3U CN207365868U (en) | 2017-11-17 | 2017-11-17 | The measurement of elongation instrument of thermal stretching bolt |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207365868U true CN207365868U (en) | 2018-05-15 |
Family
ID=62344225
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721562292.3U Active CN207365868U (en) | 2017-11-17 | 2017-11-17 | The measurement of elongation instrument of thermal stretching bolt |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207365868U (en) |
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2017
- 2017-11-17 CN CN201721562292.3U patent/CN207365868U/en active Active
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20181227 Address after: 510630 room 2201, Longkou East Road, Tianhe District, Guangzhou, Guangdong, 2201 Patentee after: Southern power grid peak modulation FM Power Generation Co., Ltd. Address before: 511400 3 floor, 8 building, Tianan energy conservation technology park, 555 Panyu Avenue North, Panyu District, Guangzhou, Guangdong. Patentee before: Peaking and Frequency Regulation Power Generation Company of China Southern Power Grid Co., Ltd. |