CN204373826U - A kind of anchor-holding force of anchor bolt prior-warning device - Google Patents
A kind of anchor-holding force of anchor bolt prior-warning device Download PDFInfo
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- CN204373826U CN204373826U CN201520041608.9U CN201520041608U CN204373826U CN 204373826 U CN204373826 U CN 204373826U CN 201520041608 U CN201520041608 U CN 201520041608U CN 204373826 U CN204373826 U CN 204373826U
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- spherical shell
- anchor
- outer plate
- internal sheet
- reflective tape
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Abstract
The utility model discloses a kind of anchor-holding force of anchor bolt prior-warning device, comprise shell, high strength central spring, tooth bar, side reflective tape and rotary type wide angle refecting band, gear, outer plate spherical shell and internal sheet spherical shell, upper bed-plate and lower bottom base, hollow cylinder, described central spring is welded in the center circular groove of upper bed-plate and lower bottom base.The realization of apparatus function is as follows: when anchor-holding force of anchor bolt reduces, the central spring of device can relax and cause the vertical pinion rotation of rack drives, vertical gear driven horizontal gear rotates, horizontal gear drives internal sheet spherical shell to rotate, internal sheet spherical shell can be made to rotate relative to outer plate spherical shell, thus the reflective tape of the internal sheet spherical shell outside surface be hidden in outer plate spherical shell is revealed, by the anchor pole of light-illuminating reflective tape and distinguishable anchor force deficiency.Thus the prior-warning device of a kind of structure and Non-Destructive Testing anchor force simple to operate is provided.
Description
Technical field:
The utility model relates to a kind of anchor-holding force of anchor bolt prior-warning device, particularly relates to a kind of prior-warning device rockbolt stress state being carried out to Non-Destructive Testing.
Background technology:
The degree of depth of current domestic many pit minings or development stretching has exceeded 700m, what have has even exceeded 1000m, occurred the unmanageable soft-rock tunnel of increasing classic method in mine, and wherein most tunnel is in the unfavorable situation of repeatedly reprocessing, repeatedly expanding brush, repeatedly supporting.Soft rock intensity is weak, structure is poor, and deflection is large, and the sarifying section of surrounding rock scope in tunnel is large, and rock mass load-bearing capacity is poor, and the selection of support pattern should meet the distortion satisfied supporting to country rock again of suitable for surrounding rock, and the requirement therefore for anchor pole is more and more higher.In process of coal mining now, because supporting quality does not reach design standards, cause and constantly it is repaired.Anchor pole can because the installation of Anchor Agent be improper, just there will be slip after a period of time, anchor force is not enough, also may because environment is moister in tunnel, anchor pole contacts with too much water and causes anchor force not enough, thus anchoring effect reduces, in addition, also there will be the phenomenons such as anchor force is not enough in the installation of anchor pole itself and application process, but these situations be can't see in appearance, use this anchor pole if long-time, tunnel can be caused to cave in, very large accident occurs.
Existing anchor-holding force of anchor bolt fiber grating detection system device and rockbolt tension meter now.Anchor-holding force of anchor bolt fiber grating detection system device is made up of Fiber Bragg Grating Sensor Array, optical fiber grating anchor ergometer, fiber Bragg grating (FBG) demodulator, optical cable and computing machine.Optical fiber grating anchor ergometer is primarily of being evenly arranged multiple fiber grating composition on cyclic spring body wall.Optical fiber grating anchor ergometer is arranged on anchor rod anchored end end, simultaneously at rock bolt shank laying optical fiber grating sensor array, Fiber Bragg Grating Sensor Array, optical fiber grating anchor ergometer are connected with fiber Bragg grating (FBG) demodulator respectively by optical cable, and fiber Bragg grating (FBG) demodulator is connected with computing machine.But anchor-holding force of anchor bolt fiber grating detection system bulking block is many, operating process is loaded down with trivial details, cost is high, unsuitable large-scale application.Rockbolt tension meter is that sampling does destruction anchor rod experiment to detect rockbolt stress state, so also there is certain self-defect when detecting anchor force.
Summary of the invention:
Technical matters: the purpose of this utility model is that the anchor rod anchored force detection system bulking block of solution is many, operating process is loaded down with trivial details, the problem of cost, provides the prior-warning device of a kind of structure and Non-Destructive Testing anchor force simple to operate.
Technical scheme: the utility model comprises: shell, high strength central spring, tooth bar, side reflective tape and rotary type wide angle refecting band, vertical plastic helical teeth circular cone bevel gear, outer plate spherical shell and internal sheet spherical shell, upper bed-plate and lower bottom base, hollow cylinder, described central spring is welded in the center circular groove of upper bed-plate and lower bottom base; The bottom of described tooth bar is welded on upper bed-plate, and tooth bar stretches in internal sheet spherical shell by lower bottom base central authorities circular groove edge aperture, and tooth bar is connected with vertical gear mesh; Described vertical gear is connected with horizontal gear is meshing; Described internal sheet spherical shell heavy caliber inside edge welding circumference spiral shell tooth is connected with horizontal gear is meshing; Described outer plate spherical shell is small-bore is provided with screw thread, hollow cylinder is established corresponding screw thread, the two relatively turns and can fix or unload outer plate spherical shell, and the housing of outer plate spherical shell is by cutouts surface area, the surface area cut out is in the rectangle of rule, account for the total area 10% ~ 40%, stick reflective tape at internal sheet spherical shell partial outer face, the area of reflective tape accounts for 40% ~ 50% of internal sheet spherical shell total surface area; The reflective tape that described internal sheet spherical shell partial outer face posts, when device installation, is hidden in outer plate spherical shell, only has when internal sheet spherical shell rotates relative to outer plate spherical shell, and the reflective tape of the internal sheet spherical shell outside surface be hidden in outer plate spherical shell just can be made to reveal.The realization of apparatus function is as follows: when anchor-holding force of anchor bolt reduces, the central spring of device can relax and cause the vertical pinion rotation of rack drives, vertical gear driven horizontal gear rotates, horizontal gear drives internal sheet spherical shell to rotate, internal sheet spherical shell can be made to rotate relative to outer plate spherical shell, thus the reflective tape of the internal sheet spherical shell outside surface be hidden in outer plate spherical shell is revealed, by the anchor pole of light-illuminating reflective tape and distinguishable anchor force deficiency.
Anchor-holding force of anchor bolt prior-warning device has mainly used the law of elasticity of Hooke, gear drive principle, reflective tape thin lens image-forming principle, and concrete principle analysis is as follows:
The law of elasticity of Hooke is pointed out: in elastic limit, and the elastic force F of spring and the length variations amount x of spring is directly proportional, i.e. F=kx.K is the elasticity coefficient of material, and it determined by the character of material, and negative sign represents that the elastic force that spring produces is contrary with the direction of its elongation (or compression).According to Hooke's law, make the high strength central spring meeting elasticity coefficient and require.Described spring is in device inside and welds together with base.
Gear drive principle refers to: the device directly transmitting motion and power with the principal and subordinate wheel gear teeth.Gear drive utilizes the gear teeth of two gears to engage each other the mechanical drive transmitting dynamic force and motion.In the inside of device, because small deformation quantity only occurs central spring, the resistance be subject to tooth bar (welding together with base) interconnective pinion rotation only equals the friction force be subject to when wide angle refecting band rotates outside device.Therefore, when the design of device, adopt material comparatively light but the plastic gear that intensity is higher, alleviate own wt and can meet user demand again simultaneously.The deformation of device center upright spring, in rotation process, is changed into the rotation of prior-warning device side reflective tape by the gear of mutual occlusion.
Reflective tape thin lens image-forming principle: distant place direct light line reflection can be postbacked light place by it, no matter by day or all have good reflex reflection optical property night.Especially evening, the high-visibility as daytime can be played.Use the Reflective adhesive tape that this high-visibility reflectorized material is made, no matter user is at remote place, or when scattered light interference, can be found with comparalive ease.Staff can be made to see mark clearly at night, improve the recognition capability to mark at people night largely.Reflective membrane on reflective tape utilizes optical principle, can converse for the light facial mask being mapped to a kind of special construction at light source place.The serviceable life of reflective membrane, the brightness retention after 7 years was at least 50% of initial value generally in 3 to 7 years.This material is convenient to use in severe subsurface environment just.
Beneficial effect: anchor-holding force of anchor bolt prior-warning device realizes when anchor pole loosens by central spring, when rock stratum slightly comes off or nut loosens, pallet also can contact with rock stratum and strong effect under the action of the spring.The arrangement increases the support capacity of anchor pole to tunnel, when particularly formation geology condition in tunnel is poor, the globality of rock stratum can be improved.Drive the aggregate motion of helical teeth wheel and rack while spring elongates, at this moment reflective tape exposes, and can find the hypodynamic anchor pole of anchoring with light-illuminating, so that staff's maintenance or replacement.So, decrease later maintenance work and coal mining cost, ensure that mine safety is produced efficiently.
Accompanying drawing illustrates:
Fig. 1 is the utility model anchor-holding force of anchor bolt prior-warning device structural representation;
Fig. 2 is the part A enlarged diagram in Fig. 1;
Fig. 3 is the part B enlarged diagram in Fig. 2;
Fig. 4 is the schematic diagram that the outer plate spherical shell of device and hollow cylinder are threaded connection;
Fig. 5 is the gear transmission part enlarged diagram in Fig. 1;
Fig. 6 is the inner structure schematic diagram of the utility model anchor-holding force of anchor bolt prior-warning device;
Fig. 7 is the surface structure schematic diagram of the utility model anchor-holding force of anchor bolt prior-warning device;
Fig. 8 is the utility model anchor-holding force of anchor bolt prior-warning device implementation step one schematic diagram;
Fig. 9 is the utility model anchor-holding force of anchor bolt prior-warning device implementation step two schematic diagram;
Figure 10 is the utility model anchor-holding force of anchor bolt prior-warning device implementation step three schematic diagram;
In figure: 1-shell, 2-spring, 3-vertical plastic helical teeth circular cone bevel gear, 4-be attached to the reflective tape (side reflective tape and rotary type wide angle refecting band) of internal sheet outer surface of outer cover, 5-pallet, 6-nut, 7-anchor rod main body, 8-boring, 9-rock mass, 10-tooth bar, 11-vertically gear, 12-horizontal gear, 13-outer plate spherical shell, 14-internal sheet spherical shell, 15-upper bed-plate, 16-lower bottom base, 17-circumference spiral shell tooth, 18-hollow cylinder, 19-screw thread.
Embodiment
Below in conjunction with in accompanying drawing, the utility model will be further described with specific embodiment:
As shown in Fig. 1 ~ 7, the utility model anchor-holding force of anchor bolt prior-warning device comprises: shell 1, high strength central spring 2, tooth bar 10, side reflective tape and rotary type wide angle refecting band 4, vertical plastic helical teeth circular cone bevel gear 3, outer plate spherical shell 13 and internal sheet spherical shell 14, upper bed-plate 15 and lower bottom base 16, hollow cylinder 18, and described central spring 2 is welded in the center circular groove of upper bed-plate 15 and lower bottom base 16; The bottom of described tooth bar 10 is welded on upper bed-plate 15, and tooth bar 10 stretches in internal sheet spherical shell 14 by lower bottom base 15 central circular groove edge aperture, and tooth bar 10 is connected with vertical gear 11 is meshing; Described vertical gear 11 is connected with horizontal gear 12 is meshing; Described internal sheet spherical shell 14 heavy caliber inside edge welding circumference spiral shell tooth 17 is connected (as shown in Figure 3) with horizontal gear 12 is meshing; Described outer plate spherical shell 13 is small-bore is provided with screw thread 19, hollow cylinder 18 is established corresponding screw thread 19, and the two turns relatively can fix or unload outer plate spherical shell (as shown in Figure 4), sticks reflective tape 4 at internal sheet spherical shell 14 partial outer face; The reflective tape 4 that described internal sheet spherical shell 14 partial outer face posts is when device installation, be hidden in outer plate spherical shell 13, only have when internal sheet spherical shell 14 rotates relative to outer plate spherical shell 13, the reflective tape 4 of internal sheet spherical shell 14 outside surface be hidden in outer plate spherical shell 13 just can be made to reveal.
Concrete implementation step is as follows:
Step one: as shown in Figure 8, inserts and uses pallet 5 fixing anchor bar mobile jib 7 in the boring 8 of rock mass 9;
Step 2: as shown in Figure 9, adds this device between pallet 5 and nut 6, tightening nuts 6, makes central spring 2 be in compressive state;
Step 3: as shown in Figure 10, when the anchor force of anchor pole reduces, being extended by the central spring 2 compressed makes the distance between pallet 5 and nut 6 increase, tooth bar 10 drives vertical gear 11 to rotate, vertical gear 11 drives horizontal gear 12 to rotate, horizontal gear 12 rotates, the circumference spiral shell tooth 17 of internal sheet spherical shell 14 heavy caliber inside edge can be driven to rotate, internal sheet spherical shell 14 is rotated relative to outer plate spherical shell 13, thus the reflective tape 4 of internal sheet spherical shell 14 outside surface be hidden in outer plate spherical shell 13 is revealed, by the light-illuminating reflective tape 4 i.e. anchor pole of distinguishable anchor force deficiency.
Claims (4)
1. an anchor-holding force of anchor bolt prior-warning device, it is characterized in that: shell (1), high strength central spring (2), tooth bar (10), side reflective tape and rotary type wide angle refecting band (4), vertical plastic helical teeth circular cone bevel gear (3), outer plate spherical shell (13) and internal sheet spherical shell (14), upper bed-plate (15) and lower bottom base (16), hollow cylinder (18), described central spring (2) is welded in the center circular groove of upper bed-plate (15) and lower bottom base (16); The bottom of described tooth bar (10) is welded on upper bed-plate (15), tooth bar (10) stretches in internal sheet spherical shell (14) by lower bottom base (15) central circular groove edge aperture, and tooth bar (10) is connected with vertical gear (11) is meshing; Described vertical gear (11) is connected with horizontal gear (12) is meshing; Described internal sheet spherical shell (14) heavy caliber inside edge welding circumference spiral shell tooth (17) is connected with horizontal gear (12) is meshing, and internal sheet spherical shell (14) partial outer face posts reflective tape (4); Described outer plate spherical shell (13) is small-bore is provided with screw thread (19), hollow cylinder (18) is established corresponding screw thread (19).
2. anchor-holding force of anchor bolt prior-warning device according to claim 1, is characterized in that: the housing of described outer plate spherical shell (13) is by cutouts surface area, and the surface area cut out, in the rectangle of rule, accounts for the total area 10% ~ 40%.
3. anchor-holding force of anchor bolt prior-warning device according to claim 1, it is characterized in that: the area of described reflective tape (4) accounts for 40% ~ 50% of internal sheet spherical shell (14) total surface area, when device installation, under being hidden in outer plate spherical shell (13), only have when internal sheet spherical shell (14) rotates relative to outer plate spherical shell (13), reflective tape (4) just can be made to be revealed by the part cut out by outer plate spherical shell (13).
4. the anchor-holding force of anchor bolt prior-warning device according to claim 1 or 3, it is characterized in that: described reflective tape (4) is after certain tenure of use, outer plate spherical shell (13) can be rotated by artificial, outer plate spherical shell (13) is unloaded, so that exchange the reflective tape (4) being attached to internal sheet spherical shell (14) outside surface from hollow cylinder (18).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520041608.9U CN204373826U (en) | 2015-01-21 | 2015-01-21 | A kind of anchor-holding force of anchor bolt prior-warning device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520041608.9U CN204373826U (en) | 2015-01-21 | 2015-01-21 | A kind of anchor-holding force of anchor bolt prior-warning device |
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| Publication Number | Publication Date |
|---|---|
| CN204373826U true CN204373826U (en) | 2015-06-03 |
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| CN201520041608.9U Expired - Fee Related CN204373826U (en) | 2015-01-21 | 2015-01-21 | A kind of anchor-holding force of anchor bolt prior-warning device |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104568274A (en) * | 2015-01-21 | 2015-04-29 | 安徽理工大学 | Anchoring force pre-warning device for anchor rod |
| CN111928982A (en) * | 2020-07-27 | 2020-11-13 | 山东光安智能科技有限公司 | Mining visual fiber grating wide-range anchor rod cable stress monitoring sensor |
-
2015
- 2015-01-21 CN CN201520041608.9U patent/CN204373826U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104568274A (en) * | 2015-01-21 | 2015-04-29 | 安徽理工大学 | Anchoring force pre-warning device for anchor rod |
| CN104568274B (en) * | 2015-01-21 | 2017-02-22 | 安徽理工大学 | Anchoring force pre-warning device for anchor rod |
| CN111928982A (en) * | 2020-07-27 | 2020-11-13 | 山东光安智能科技有限公司 | Mining visual fiber grating wide-range anchor rod cable stress monitoring sensor |
| CN111928982B (en) * | 2020-07-27 | 2021-09-10 | 山东光安智能科技有限公司 | Mining visual fiber grating wide-range anchor rod cable stress monitoring sensor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150603 Termination date: 20160121 |
|
| EXPY | Termination of patent right or utility model |