CN208870584U - A kind of anti-collapse bore dia adjustable drilling stress meter uniform stressed device - Google Patents
A kind of anti-collapse bore dia adjustable drilling stress meter uniform stressed device Download PDFInfo
- Publication number
- CN208870584U CN208870584U CN201821674540.8U CN201821674540U CN208870584U CN 208870584 U CN208870584 U CN 208870584U CN 201821674540 U CN201821674540 U CN 201821674540U CN 208870584 U CN208870584 U CN 208870584U
- Authority
- CN
- China
- Prior art keywords
- steel plate
- outer cover
- collapse
- buckle
- bore dia
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
The utility model discloses a kind of anti-collapse bore dia adjustable drilling stress meter uniform stressed device, including outer cover of steel plate one, outer cover of steel plate two, the stainless steel band of fixation steel plate shell, the buckle for locking band head and the tail both ends, the band card slot for placing band and for placing the buckle card slot of buckle.Outer cover of steel plate has certain deflection steel plate to be made using high-quality, it can expand with borehole stressmeter oil sac and deform, sustainable drilling kata-rocks stone effectively controls collapse hole simultaneously, can also prevent from rock block from directly contacting with oil sac to form point contact oil sac is caused to destroy and measurement data inaccuracy problem.The apparatus structure is simple, easy to make, effectively raises the measurement accuracy of borehole stressmeter, protects the integrality of coal and rock around oil sac.
Description
Technical field
The utility model relates to a kind of stress meter uniform stressed device, especially a kind of anti-collapse hole suitable for ore body excavation
The device of diameter adjustable drilling stress meter uniform stressed, belongs to mining technical field of auxiliary equipment.
Background technique
In the mines such as coal mine field, with the excavation of ore body, the stress in surrounding rock body can change therewith.It is accurate
The stress variation situation in rock mass is held, coal mine generallys use borehole stressmeter to measure country rock internal stress size.
Since borehole stressmeter needs first to make a call in the specific use process the drilling of a selected specification, then drilling is answered
Power meter is put into drilling and measures stress.But due to the drilling in rock and hard coal, unavoidably had in hole hard
Solid particle, and since new stress field needs again stable, collapse hole phenomenon can slowly occur in drilling.What coal mine used at present is more
For rubber oil bellows borehole stressmeter, but without the protective device to rubber oil sac in hole, this will make rubber oil sac in heavily fortified point
Point stress is formed under the influence of hard solid particle, cannot accurately measure stress data or even rubber oil sac is torn destruction.
Summary of the invention
The purpose of this utility model be for defect existing for above-mentioned borehole stressmeter, provide a kind of simple and stable structure,
Easy to operate anti-collapse bore dia adjustable drilling stress meter uniform stressed device.
To achieve the above object, the anti-collapse bore dia adjustable drilling stress meter uniform stressed device of the utility model, including
Outer cover of steel plate one, outer cover of steel plate two, fixation steel plate shell stainless steel band, lock stainless steel band head and the tail both ends buckle,
The card slot and buckle card slot of stainless steel band are placed, the outer cover of steel plate one is cylindric, cylindrical surface with outer cover of steel plate two
On be provided with U-shaped opening, two outer cover of steel plate misplace mutual obvolvent together by U-shaped opening.
It is 2.0mm, diameter is 40mm that the length of the outer cover of steel plate one and outer cover of steel plate two, which is 40mm, thickness,.
The length of the card slot is 10mm, width 10mm, depth 0.5mm.
The length of the buckle card slot is 12mm, width 12mm, depth 1mm.
The material of the stainless steel band is 304 stainless steels, length 150mm, width 7mm, with a thickness of 0.4mm.
The material of the buckle is 304 stainless steels, length 10mm, width 10mm, with a thickness of 2mm.
The utility model has the advantages that due to using above technical scheme, the utility model can not only prevent drilling collapse hole, Er Qieke
To avoid borehole stressmeter point contact, make its uniform stressed, while borehole stressmeter diameter can be made to transfer.Compared with prior art
The advantages of be: firstly, by plus steel plate protective shell, effectively avoided borehole stressmeter to borehole stressmeter due to brill
Point contact caused by the contact of solid rock or coal body particle in hole and formed reading inaccuracy even oil sac destruction；Secondly,
After being pressurized to certain value to oil sac oil transportation, outer cover of steel plate diameter, which becomes larger, can deform with stainless steel band until buckling because opening
Power is excessive and unclamps stainless steel band, to allow for becoming larger for oil sac diameter, and then drilling is answered in the drilling for meeting different-diameter
The requirement of power meter；Again after being pressurized to required value to borehole stressmeter, steel plate just fits with hole wall, makees oil sac is counter
It can avoid the slump of drilling under the action of firmly and form broken or plastic zone, to more accurately measure the stress of measured position
Value.The anti-collapse bore dia adjustable drilling stress meter uniform stressed device has simple structure, at low cost, simple installation, easily batch
The advantages that production, has extensive practical.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the utility model.
Fig. 2 is the A-A cross-sectional view of Fig. 1.
Fig. 3 is structural schematic diagram of the utility model without band and buckle.
Fig. 4 is two structural schematic diagram of outer cover of steel plate.
In figure: 1- outer cover of steel plate one；2- outer cover of steel plate two；3- stainless steel band；4- buckle；5- band card slot；6- buckle
Card slot.
Specific embodiment
Embodiment in reference to the accompanying drawing is further described the utility model:
This practical anti-collapse bore dia adjustable drilling stress meter uniform stressed device, mainly by outer cover of steel plate 1, outer cover of steel plate
22, the stainless steel band 3 of fixation steel plate shell, the buckle 4 for locking 3 head and the tail both ends of stainless steel band, placement stainless steel band 3
Card slot 5 and buckle card slot 6 constitute, the outer cover of steel plate 1 with outer cover of steel plate 22 be it is cylindric, opened on cylindrical surface
There is U-shaped opening, two outer cover of steel plate misplace mutual obvolvent together by U-shaped opening, misplace two steel of mutual obvolvent in U-shaped opening
Two sides process card slot 5 and buckle card slot 6 to plate shell up and down, and stainless steel band 3 is inlaid in pseudoconjugant outer cover of steel plate by buckle 4
On, surface is concordant with the face of outer cover of steel plate, is not blocked when to import drilling.
The length of the outer cover of steel plate 1 and outer cover of steel plate 22 is that 40mm, thickness are that 2.0mm, diameter are
40mm。
The length of the card slot 5 is 10mm, width 10mm, depth 0.5mm.
The length of the buckle card slot 6 is 12mm, width 12mm, depth 1mm.
The material of the stainless steel band 3 is 304 stainless steels, length 150mm, width 7mm, with a thickness of 0.4mm.
The material of the buckle 4 is 304 stainless steels, length 10mm, width 10mm, with a thickness of 2mm.
Working principle and the course of work: the oil of borehole stressmeter is first wrapped with outer cover of steel plate 1 and outer cover of steel plate 22
Capsule, the top for meeting the two steel plates zoarium after combining and the top of oil sac are mutually neat, the tail end of two steel plates zoarium and the tail end of oil sac
Xiang Qi is then wrong U-shaped opening at the band card slot 5 and buckle card slot 6 held successfully using stainless steel band 3 and buckle 4
Position mutually pseudoconjugant tightens, and prevents the steel plate zoarium when oil sac is imported in drilling from falling off.When pressurizeing to borehole stressmeter, answer
Guarantee oil pressure gauge reading in 5.0MPa or more, i.e. outer cover of steel plate and borehole wall reaches close contact state.
Claims (6)
1. a kind of anti-collapse bore dia adjustable drilling stress meter uniform stressed device, it is characterised in that: it includes outer cover of steel plate one
(1), outer cover of steel plate two (2), fixation steel plate shell stainless steel band (3), lock stainless steel band (3) head and the tail both ends buckle
(4), the card slot (5) and buckle card slot (6), the outer cover of steel plate one (1) and outer cover of steel plate two of stainless steel band (3) are placed
(2) be it is cylindric, U-shaped opening is provided on cylindrical surface, two outer cover of steel plate misplace mutual obvolvent together by U-shaped opening.
2. requiring a kind of anti-collapse bore dia adjustable drilling stress meter uniform stressed device according to claim 1, feature exists
It is 40mm, thickness in: the length of the outer cover of steel plate one (1) and outer cover of steel plate two (2) be 2.0mm, diameter is 40mm.
3. a kind of anti-collapse bore dia adjustable drilling stress meter uniform stressed device according to claim 1, it is characterised in that:
The length of the card slot (5) is 10mm, width 10mm, depth 0.5mm.
4. a kind of anti-collapse bore dia adjustable drilling stress meter uniform stressed device according to claim 1, it is characterised in that:
The length of the buckle card slot (6) is 12mm, width 12mm, depth 1mm.
5. a kind of anti-collapse bore dia adjustable drilling stress meter uniform stressed device according to claim 1, it is characterised in that:
The material of the stainless steel band (3) is 304 stainless steels, length 150mm, width 7mm, with a thickness of 0.4mm.
6. a kind of anti-collapse bore dia adjustable drilling stress meter uniform stressed device according to claim 1, it is characterised in that:
The material of the buckle (4) is 304 stainless steels, length 10mm, width 10mm, with a thickness of 2mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821674540.8U CN208870584U (en) | 2018-10-16 | 2018-10-16 | A kind of anti-collapse bore dia adjustable drilling stress meter uniform stressed device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821674540.8U CN208870584U (en) | 2018-10-16 | 2018-10-16 | A kind of anti-collapse bore dia adjustable drilling stress meter uniform stressed device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208870584U true CN208870584U (en) | 2019-05-17 |
Family
ID=66470251
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821674540.8U Expired - Fee Related CN208870584U (en) | 2018-10-16 | 2018-10-16 | A kind of anti-collapse bore dia adjustable drilling stress meter uniform stressed device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208870584U (en) |
-
2018
- 2018-10-16 CN CN201821674540.8U patent/CN208870584U/en not_active Expired - Fee Related
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Legal Events
| 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: 20190517 Termination date: 20191016 |