CN208282771U - A kind of mechanical swelling type hole wall deformation sensor for drilling - Google Patents
A kind of mechanical swelling type hole wall deformation sensor for drilling Download PDFInfo
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- CN208282771U CN208282771U CN201820989077.XU CN201820989077U CN208282771U CN 208282771 U CN208282771 U CN 208282771U CN 201820989077 U CN201820989077 U CN 201820989077U CN 208282771 U CN208282771 U CN 208282771U
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- shell
- measuring staff
- casing
- kinematic link
- roller bearing
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Abstract
The utility model discloses a kind of mechanical swelling type hole wall deformation sensor for drilling, including protection mechanism, expansion mechanism and deformation measurement mechanism, protection mechanism packet first shell and covers the second shell outside first shell；Expansion mechanism includes feeler lever, casing and transmission component, and feeler lever passes through one end of second shell and is connected with the inner end wall of the second shell other end, and casing is located in first shell and covers on feeler lever, and pull rod is connected on casing, and pull rod passes through second shell；Deformation measurement mechanism includes external measuring staff, strain measuring staff and measurement pedestal, casing is connected by transmission component with measurement pedestal, the one end for straining measuring staff is connected with measurement pedestal, the other end for straining measuring staff is connected with external measuring staff, foil gauge is connected on strain measuring staff, the deformation-sensor structure is simple and novel, and measurement is easy to use, at low cost.
Description
Technical field
The utility model relates to mine pressure monitoring fields, and in particular to a kind of mechanical swelling type hole wall change for drilling
Shape sensor.
Background technique
In coal mining, roadway's sides coal body internal stress is the important content of ore pressure monitor, is concentrated to stress in coal bed
The early warning of the dynamic disasters such as assay, the bump of degree has great importance.At this stage, coal mine is generally using drilling
Stress meter monitors coal and rock internal stress, and direct monitoring data are load of the coal body to borehole stressmeter.For relatively more complete
Coal body, coal body can generate biggish load action to borehole stressmeter under the effect of country rock local stress, and monitoring data are calibrated
Really.When tunnel coal body is relatively broken, the break up coal body internal stress nearby that drills is relatively low, opposite to the load of borehole stressmeter
Smaller, monitoring data vary less or almost unchanged, can not accurate evaluation tunnel portion of side stress in coal bed size.Compared to answering
Power, is crushed in coal body that borehole wall deformation is larger, it is easier to monitor, and the deformation that drills with coal body internal stress with directly related
Property, it therefore, can be by monitoring coal deformation inverting stress in coal bed." a kind of ground geologic body testing borehole deformation device and its survey
Method for testing " (application number CN201710841566.0) discloses a kind of testing borehole deformation device, can be to the multiple sides of borehole wall
To deformation be monitored, but in the more coal body in crack, set screw is easily inserted into crack, surveys deformation no data variation
Or there are large errors.
Utility model content
The purpose of this utility model is to provide a kind of mechanical swelling type hole wall deformation sensor for drilling, the sensings
Device structure is simple, and measurement is easy to use, at low cost.
To achieve the goals above, the technical solution of use is the utility model:
A kind of mechanical swelling type hole wall deformation sensor for drilling, including protection mechanism, expansion mechanism and deformation are surveyed
Measuring mechanism, protection mechanism packet first shell and covers the second shell outside first shell, offers first through hole in first shell,
The second through-hole is offered in second shell；
Expansion mechanism includes feeler lever, casing and transmission component, and feeler lever passes through one end of second shell and and second shell
The inner end wall of the other end is connected, and casing is located in first shell and covers on feeler lever, is connected with pull rod on casing, and pull rod is across the
Two shells, transmission component pass through first through hole；
Deformation measurement mechanism includes external measuring staff, strain measuring staff and measurement pedestal, and strain measuring staff and measurement pedestal are located at the
Between two shells and first shell, casing is connected by transmission component with measurement pedestal, strains one end and the measurement pedestal of measuring staff
It is connected, the other end for straining measuring staff is connected with external measuring staff, strains and is connected with foil gauge on measuring staff.
Preferably, described sleeve pipe is cylindrical, and transmission component includes the first kinematic link, the second kinematic link and the first rolling
Axis, the first roller bearing have multiple and are evenly arranged in first through hole.
Preferably, described sleeve pipe is in prism-frustum-shaped, and transmission component includes third kinematic link, the second roller bearing and third roller bearing,
Second roller bearing has multiple and is evenly arranged in first through hole.
Preferably, first kinematic link is located in first shell, the second kinematic link pass through first through hole and with
First roller bearing connects；One end of first kinematic link is rotatablely connected by the outer wall of shaft and casing, the first kinematic link it is another
One end and one end of the second kinematic link are rotatablely connected, and the other end of the second kinematic link and the side wall of measurement pedestal are connected.
Preferably, the third drive rod passes through first through hole and connects with the second roller bearing, one end of third drive rod
Multiple third roller bearings are connected, third drive rod is connected by third roller bearing with sleeve outer wall, the other end of third drive rod and survey
The side wall for measuring pedestal is connected.
Preferably, the external measuring staff includes outer bar portion and interior bar portion, and interior bar portion is vertically connected on the inner end wall of outer bar portion
On, interior bar portion pass through the second through-hole with strain that measuring staff is vertical connect.
Preferably, the foil gauge is resistance strain gage, and each strain measuring staff connects two foil gauges, two foil gauges point
The upper and lower surfaces of strain measuring staff are not sticked in.
Preferably, the first stop collar and the second stop collar are connected on the feeler lever, the first stop collar is socketed on casing
On the feeler lever at end, the second stop collar is socketed on the feeler lever of lower end.
The beneficial effects of the utility model are:
The above-mentioned mechanical swelling type hole wall deformation sensor for drilling, directly measures coal body compared to rigid elastic element
Stress, flexible resilient element are bigger to the sensibility of broken coal deformation, are easier to obtain accurate coal deformation value, thus inverting
Stress in coal bed.External measuring staff in the utility model can be contacted with drill hole inner wall larger area coal body, avoided point contact and drawn
The data error risen.The utility model deformation-sensor can monitor the coal body strain in multiple and different orientation, to obtain more quasi-
True stress in coal bed value and stress increase orientation, improve the comprehensive of stress in coal bed monitoring.Above-mentioned deformation-sensor uses base
This strain measurement principle, structure is simple, easy to use, at low cost.
Detailed description of the invention
Fig. 1 is the facing structure section view signal of the mechanical swelling type hole wall deformation sensor for drilling in embodiment 1
Figure.
Fig. 2 is the plan structure section view signal of the mechanical swelling type hole wall deformation sensor for drilling in embodiment 1
Figure.
Fig. 3 is deformation measurement mechanism attachment structure schematic diagram.
Fig. 4 is the facing structure section view signal of the mechanical swelling type hole wall deformation sensor for drilling in embodiment 2
Figure.
Specific embodiment
The utility model is described in detail with reference to the accompanying drawing:
In conjunction with Fig. 1 to Fig. 4, a kind of mechanical swelling type hole wall deformation sensor for drilling, including it is protection mechanism 1, swollen
Swollen mechanism 2 and deformation measurement mechanism 3,1 packet first shell 11 of protection mechanism and cover the second shell 12 outside first shell 11, the
First through hole 111 is offered on one shell 11, and the second through-hole 121 is offered in second shell 12.
Expansion mechanism 2 include feeler lever 21, casing 22 and transmission component 23, feeler lever 21 pass through second shell 12 one end and
It is connected with the inner end wall of 12 other end of second shell.Casing 22 is located in first shell 11 and covers on feeler lever 21, casing 22
On be connected with pull rod 24, pull rod 24 passes through second shell 12, and transmission component 23 passes through first through hole 111.
Deformation measurement mechanism 3 includes external measuring staff 31, strain measuring staff 32 and measurement pedestal 33, strains measuring staff 32 and measurement base
Between second shell 12 and first shell 11, casing 22 is connected by transmission component 23 with measurement pedestal 33 seat 33, is strained
One end of measuring staff 32 is connected with measurement pedestal 33, and the other end for straining measuring staff 32 is connected with external measuring staff 31, strains on measuring staff 32
It is connected with foil gauge 34.
In the utility model, first shell 11 and second shell 12 are cylindrical, first through hole 111 and the second through-hole
121 have multiple, and on the outer wall for the lower part that multiple first through hole 111 are evenly arranged on first shell 11, multiple second through-holes 121 are uniformly distributed
In the external wall of upper portion of second shell 12, an external measuring staff 31, each external measuring staff 31 are connected in each second through-hole 121
Connect a strain measuring staff 32.
External measuring staff 31 includes outer bar portion 311 and interior bar portion 312, and interior bar portion 312 is vertically connected on the inner end of outer bar portion 311
On wall, interior bar portion 312 pass through the second through-hole 121 with strain that measuring staff 32 is vertical connect.Foil gauge 34 in the utility model is electricity
Foil gauge is hindered, each strain measuring staff 32 connects two foil gauges 34, and two foil gauges 34 stick in the upper of strain measuring staff 32 respectively
Surface and lower surface.
Feeler lever 21 is in round bar shape, is connected with the first stop collar 211 and the second stop collar 212, the first stop collar on feeler lever 21
211 are socketed on the feeler lever 21 of 22 upper end of casing, and the second stop collar 212 is socketed on the feeler lever 21 of 22 lower end of casing.
For the structure that casing 22 is connected with transmission component 23, there is different constructive embodiments.
Embodiment 1, when casing 22 is cylindrical.Transmission component 23 includes the first kinematic link 41, the second kinematic link
42 and first roller bearing 43, the first roller bearing 43 have multiple and be evenly arranged in first through hole 111.First kinematic link 41 is located at first
In shell 11, the second kinematic link 42 passes through first through hole 111 and connects with the first roller bearing 43.The one of first kinematic link 41
End is rotatablely connected by the outer wall of shaft and casing 22, one end of the other end of the first kinematic link 41 and the second kinematic link 42
Rotation connection, the other end of the second kinematic link 42 and the side wall of measurement pedestal 33 are connected.
Embodiment 2, when casing 22 is in prism-frustum-shaped.Transmission component 23 includes third kinematic link 51,52 and of the second roller bearing
Third roller bearing 53, the second roller bearing 52 have multiple and are evenly arranged in first through hole 111.Third drive rod 51 passes through first through hole
111 and connect with the second roller bearing 52, multiple third roller bearings 53, third transmission are connected on the end wall of one end of third drive rod 51
Bar 51 is connected by third roller bearing 53 with 22 outer wall of casing, and the other end of third drive rod 51 and the side wall of measurement pedestal 33 are solid
Even.
The monitoring application method of the above-mentioned mechanical swelling type hole wall deformation sensor for drilling, specific as follows:
The first step is pushed forward casing 22 first, and deformation-sensor is made to be in minimum admission space；
Deformation-sensor is pushed into the deep of the drilling of coal body with drilling rod by second step.Pay attention in pushing course, avoids passing
Sensor rotation, guarantee has two pairs of external measuring staffs 31 vertically and horizontally to place, while recording the orientation angles of each measuring staff；
Third step, foil gauge 34 connects data collection system keeps deformation-sensor swollen by 24 post-tensioning casing 22 of pull rod
It is swollen, the data of foil gauge 34 on each strain measuring staff 32 are observed at this time, it is fixed after each foil gauge 34 has obvious reading
Casing 22；
4th step, real-time monitoring respectively strain the data of foil gauge 34 on measuring staff 32, are analyzed inside coal body according to data variation
Stress increases orientation, using theoretical formula inverting stress in coal bed relative changing value；
5th step is pushed forward casing 22, then takes out deformation-sensor after a certain measuring point is scrapped.
The above-mentioned mechanical swelling type hole wall deformation sensor for drilling, directly measures coal body compared to rigid elastic element
Stress, flexible resilient element are bigger to the sensibility of broken coal deformation, are easier to obtain accurate coal deformation value, thus inverting
Stress in coal bed.External measuring staff 31 in the utility model can be contacted with drill hole inner wall larger area coal body, avoid point contact
Caused data error.The utility model deformation-sensor can monitor the coal body strain in multiple and different orientation, to obtain more
Accurate stress in coal bed value and stress increase orientation, improve the comprehensive of stress in coal bed monitoring.Above-mentioned deformation-sensor uses
Basic strain measurement principle, structure is simple, easy to use, at low cost.
Certainly, the above description is not intended to limit the present invention, and the utility model is also not limited to the example above,
The variations, modifications, additions or substitutions that those skilled in the art are made in the essential scope of the utility model, are also answered
Belong to the protection scope of the utility model.
Claims (8)
1. a kind of mechanical swelling type hole wall deformation sensor for drilling, which is characterized in that including protection mechanism, expansion mechanism
With deformation measurement mechanism, protection mechanism packet first shell and the second shell outside first shell is covered, is offered in first shell
First through hole offers the second through-hole in second shell；
Expansion mechanism includes feeler lever, casing and transmission component, and feeler lever passes through one end of second shell and another with second shell
The inner end wall at end is connected, and casing is located in first shell and covers on feeler lever, and pull rod is connected on casing, and pull rod passes through second shell
Body, transmission component pass through first through hole；
Deformation measurement mechanism includes external measuring staff, strain measuring staff and measurement pedestal, and strain measuring staff and measurement pedestal are located at second shell
Between body and first shell, casing is connected by transmission component with measurement pedestal, and the one end for straining measuring staff is connected with measurement pedestal,
The other end for straining measuring staff is connected with external measuring staff, strains and is connected with foil gauge on measuring staff.
2. a kind of mechanical swelling type hole wall deformation sensor for drilling according to claim 1, which is characterized in that institute
It is cylindrical to state casing, transmission component includes the first kinematic link, the second kinematic link and the first roller bearing, and the first roller bearing has multiple
And it is evenly arranged in first through hole.
3. a kind of mechanical swelling type hole wall deformation sensor for drilling according to claim 1, which is characterized in that institute
Casing is stated in prism-frustum-shaped, transmission component includes third kinematic link, the second roller bearing and third roller bearing, the second roller bearing have it is multiple and
It is evenly arranged in first through hole.
4. a kind of mechanical swelling type hole wall deformation sensor for drilling according to claim 2, which is characterized in that institute
It states the first kinematic link to be located in first shell, the second kinematic link passes through first through hole and connects with the first roller bearing；First
One end of kinematic link is rotatablely connected by the outer wall of shaft and casing, the other end of the first kinematic link and the second kinematic link
One end rotation connection, the side wall of the other end of the second kinematic link and measurement pedestal is connected.
5. a kind of mechanical swelling type hole wall deformation sensor for drilling according to claim 3, which is characterized in that institute
Third drive rod to be stated across first through hole and is connected with the second roller bearing, one end of third drive rod connects multiple third roller bearings,
Third drive rod is connected by third roller bearing with sleeve outer wall, and the other end of third drive rod and the side wall of measurement pedestal are connected.
6. a kind of mechanical swelling type hole wall deformation sensor for drilling according to claim 1, which is characterized in that institute
Stating external measuring staff includes outer bar portion and interior bar portion, and interior bar portion is vertically connected in the inner end wall of outer bar portion, and interior bar portion passes through second
Measuring staff is vertical connect with strain for through-hole.
7. a kind of mechanical swelling type hole wall deformation sensor for drilling according to claim 1, which is characterized in that institute
Stating foil gauge is resistance strain gage, and each strain measuring staff connects two foil gauges, and two foil gauges stick in strain measuring staff respectively
Upper and lower surfaces.
8. a kind of mechanical swelling type hole wall deformation sensor for drilling according to claim 1, which is characterized in that institute
It states and is connected with the first stop collar and the second stop collar on feeler lever, the first stop collar is socketed on the feeler lever of sleeve upper end, the second limit
Position ring is socketed on the feeler lever of lower end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820989077.XU CN208282771U (en) | 2018-06-26 | 2018-06-26 | A kind of mechanical swelling type hole wall deformation sensor for drilling |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820989077.XU CN208282771U (en) | 2018-06-26 | 2018-06-26 | A kind of mechanical swelling type hole wall deformation sensor for drilling |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208282771U true CN208282771U (en) | 2018-12-25 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820989077.XU Expired - Fee Related CN208282771U (en) | 2018-06-26 | 2018-06-26 | A kind of mechanical swelling type hole wall deformation sensor for drilling |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109029235A (en) * | 2018-06-26 | 2018-12-18 | 山东科技大学 | A kind of mechanical swelling type hole wall deformation sensor and monitoring application method for drilling |
-
2018
- 2018-06-26 CN CN201820989077.XU patent/CN208282771U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109029235A (en) * | 2018-06-26 | 2018-12-18 | 山东科技大学 | A kind of mechanical swelling type hole wall deformation sensor and monitoring application method for drilling |
| WO2020000990A1 (en) * | 2018-06-26 | 2020-01-02 | 山东科技大学 | Mechanical expansive type hole wall deformation sensor for hole drilling, and monitoring and using method |
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20181225 Termination date: 20190626 |