CN207080243U - Pressure-relieving achor bar pallet with alarm function - Google Patents
Pressure-relieving achor bar pallet with alarm function Download PDFInfo
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- CN207080243U CN207080243U CN201720661562.XU CN201720661562U CN207080243U CN 207080243 U CN207080243 U CN 207080243U CN 201720661562 U CN201720661562 U CN 201720661562U CN 207080243 U CN207080243 U CN 207080243U
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Abstract
The utility model discloses a kind of pressure-relieving achor bar pallet with alarm function, by allowing pressure absorption systems and stress caution system to form；Described allows pressure absorption systems to be made up of top tray, variable cross-section by compression leg and lower tray, and described stress alarming device is made up of stress caution gage and warning pointer；Described variable cross-section is by compression leg totally four, and vertically the vertical central shaft annular array distribution of pallet, inclined relative to central shaft, and its bottom is welded in lower tray, in the deep-slotted chip breaker of top insertion top tray.In use, by compression leg top, arcuately groove slides variable cross-section the utility model, and then warning pointer is rotated, by observing stress that is quick, intuitively judging anchor pole, so as to judge the safety stock situation of rockbolt stress；Deformation characteristic using variable cross-section by compression leg, the stress of anchor pole is connected with variable cross-section by the compatible deformation of compression leg, can play allowing the purpose of pressure, the different die pressing types that allows can be realized again, its is easy for installation, simple to operate, is widely portable to engineering site.
Description
Technical field
Underground engineering anchor bar suspension device field is the utility model is related to, particularly a kind of allowing with alarm function presses anchor
Lever bracket disk.
Background technology
With the development of China's economic society, the underground space engineering such as underground mine, subway, water power chamber is built increasingly
More, mining depth is continuously increased, and more underground chambers are under the conditions of the severe geology such as high-ground stress, soft rock, surrounding rock of chamber
The characteristics of usually showing large deformation, the support issues faced therewith are also more and more prominent.During underground engineering support, anchor
Bar is support materials most widely used, that dosage is most, but existing conventional anchor elongation percentage is relatively low, it is impossible to adapts to roadway surrounding rock
Large deformation feature；Under country rock Impact Load, conventional anchor energy-absorbing erosion control poor-performing, it is difficult to ensure under support action
The stability of country rock.In addition, the rockbolt stress state inside roadway surrounding rock can not be showed intuitively again, and be showed
Some rockbolt stress electronics, hydraulic pressure measurement system because cost is higher and complex operation can not widely use, cause substantial amounts of non-
Specialty surveys reading personnel, the especially relatively low common laborer of schooling is difficult to the stressing conditions for judging anchor pole, so as to prejudge
The potential danger of roadway surrounding rock, and then safety hazards existing for roadway surrounding rock can not be investigated.
A kind of increase resistance pressure-relieving achor bar as Chinese patent 201610256081.0 discloses by the body of rod and allow pressure component two parts
Composition, by the body of rod and the socket place of pressure component is allowed to be provided with some grades of latches to limit the displacement of the body of rod.When anchor pole axial tension
When reaching design load, latch can be cut step by step, so that the body of rod is with allowing pressure component can the relative displacement for sliding setting.This hair
Although bright can provide the working resistance increased step by step by increasing the shear resistance of latch to country rock, it can not embody and enclose
The stressing conditions of anchor pole inside rock, latch anchor pole while cutting step by step can fail to the support action of country rock, and country rock can produce
Raw Relative sliding, effect of inertia are possible to bring potential safety hazard.
The pressure-relieving achor bar of pressure amount, including mobile jib are allowed as Chinese patent 201611155226.4 discloses a kind of monitoring in real time
Body, Bower Anchor body, spring and drawstring etc.；The front end of main rod body is provided with Bower Anchor body, and Bower Anchor body is plugged on the grafting of main rod body front end
In chamber, connected between Bower Anchor body and main rod body by spring, drawstring is provided with institute's Bower Anchor body, mobile jib is stretched out in one end of drawstring
Body and it is connected with displacement readings unit, displacement readings unit is used for the displacement for showing drawstring.This inventive structure is compact, design is skilful
It is wonderful, but allowing for anchor pole presses reasonable stress slightly to wait to consider；Determined under the complicated geological conditions of engineering site anchor pole it is actual by
During power situation, grafting chamber can be squeezed destruction so as to limit the movement of drawstring, and theoretical larger with actual deviation, cost is higher,
Limit its large-scale use.
Therefore, urgently invention one kind can allow pressure energy-absorbing at present, and can by external measurement device intuitively show it is internal by
The novel anchor rod pallet apparatus of power situation.
The content of the invention
The purpose of this utility model is to provide a kind of pressure-relieving achor bar pallet with alarm function, to solve existing anchor pole
Existing elongation percentage bottom, energy-absorbing erosion control poor-performing, it can not intuitively show internal stressing conditions now and not possess alarm function
Problem, so as to effectively control the stability of roadway surrounding rock, prejudge the potential danger of roadway surrounding rock, warning safe accident potential.
To achieve the above object, the utility model adopts the following technical scheme that.
A kind of pressure-relieving achor bar pallet with alarm function, it is characterised in that：By allowing pressure absorption systems and stress warning to be
System is formed.
Further, it is described to allow pressure absorption systems to be made up of top tray, variable cross-section by compression leg and lower tray.Described is upper
The upper plane of pallet is anchored by bolt-nut, and the deep-slotted chip breaker of its bottom surface four contacts with variable cross-section by compression leg respectively；Described change
Section allows compression leg totally four, and vertically the vertical central shaft annular array distribution of pallet, inclined relative to central shaft, its bottom
Portion is welded in lower tray, in the deep-slotted chip breaker of top insertion top tray；The baseplane of described lower tray is attached on country rock, its
Upper plane is welded with variable cross-section by compression leg.
Further, described top tray is circular high strength steel plate, and center pore-forming is used to passing through set anchor pole, thickness 18mm,
Its top surface is horizontal plane, and bottom surface is provided with four deep-slotted chip breakers, central shaft circular array distribution of its deep-slotted chip breaker along top tray.
Further, described variable cross-section is special high tensile reinforcement by compression leg, has certain camber, its curvature from it is lower extremely
Upper gradually increase；Bottom tapered section is contracted to 10mm by a diameter of 12mm of compression leg, top variable cross-section by compression leg diameter, and its bottom is inclined
Subiculum panel surface is tiltedly firmly welded on, top has been done in the deep-slotted chip breaker of the embedded top tray of round and smooth processing.In rockbolt stress, become and cut
Face allows compression leg top, and arcuately groove slides, and tilt quantity increase, upper and lower two pallet approaches, and then plays a part of allowing pressure energy-absorbing.With
The increase of anchor rod drawing power, variable cross-section deforms also more greatly, but because bottom shank diameter is larger by compression leg, therefore anti-load is strong
Degree will not weaken, and the reinforcing bar of different cross section and three-dimensional space shape can realize the different die pressing types that allows.
Further, described lower tray is circular high strength steel plate, and center pore-forming is used to passing through set anchor pole, thickness 15mm,
Plane and baseplane are horizontal plane thereon.
Further, the fluting shape of cross section of described deep-slotted chip breaker is semicircle, diameter about 12mm；The fluting of deep-slotted chip breaker
Length is 40-60mm.This fluting shape contributes to variable cross-section to be slided by round end at the top of compression leg in groove, reduces friction, realization allows
The purpose of pressure, and different slotting lengths and fluting direction can realize the different die pressing types that allows.
Further, described stress caution system is made up of stress caution gage and warning pointer.Described stress police
Indicating chi is arranged on the pop-up panel surface above a certain deep-slotted chip breaker, and its length is identical with the length of deep-slotted chip breaker.Described warning refers to
Pin is arranged on below top tray, and top is enclosed on anchor pole, and stress caution gage is pointed in end.
Further, described stress caution gage carries background color, and the direction color slided along variable cross-section by compression leg is by shallow
Set to deep subregion, arc slot length 50% within its background color be green, 50%-80% is yellow, and more than 80% is red.
Further, described warning pointer is the thin steel bar of " L " shape, and long side direction carries two annulus of size, and it is distinguished
Pass through and be enclosed on anchor pole and a certain variable cross-section by the top of compression leg, short side direction points to stress caution gage.When anchor pole is by pulling capacity,
By compression leg top, arcuately groove slides variable cross-section, and then interlocking warning pointer warns its stress along top tray edge
Scale rotates.
The utility model is a kind of pressure-relieving achor bar pallet with alarm function, will be intended in specified location according to design requirement
Allow pressure it is anchor rod anchored in country rock after, can use according to the following steps：
（1）Installation is welded with the variable cross-section according to design requirement design by the lower tray of compression leg, and its bottom surface is attached at country rock body
Outer surface；
（2）The big small circle ring for warning pointer is respectively fitted over anchor pole and a certain variable cross-section by compression leg top；
（3）Top tray of the installation with stress caution gage, variable cross-section is respectively embedded into top tray by it by the top of compression leg
In the deep-slotted chip breaker of bottom, the initial position that is placed in deep-slotted chip breaker, warning pointer is set to point to the initial bit of stress caution gage
Put；
（4）Bolt-nut is anchored at anchor pole top, fixed top tray；
（5）In use, rockbolt stress, variable cross-section continue run-off the straight deformation by compression leg because being squeezed, its
Arcuately groove slides on top, and then interlocks warning pointer and rotate, and turns to corresponding during a certain position of stress caution gage
Background color i.e. represent the current stress of anchor pole, it can be determined that the safety stock situation of rockbolt stress；If variable cross-section is by compression leg
Slide into the end of deep-slotted chip breaker, warning pointer can not be rotated further, and variable cross-section by compression leg flexural deformation it is larger when, warn anchor pole
The load born is already close to ultimate load.
The utility model is that a kind of stress readable anchor pole directly perceived is by pressure device and application method, its advantage：
（1）Using variable cross-section by compression leg, cost is cheap, and serves and allow the purpose of pressure, efficiently solves existing anchor pole and prolongs
Stretch that rate is low, the problem of so as to not adapt to the large deformation feature of roadway surrounding rock；
（2）, can be without any electric-type foil gauge, circuit and hydraulic system using readable stress caution gage directly perceived
Used under various complex environments；
（3）Deformation characteristic using variable cross-section by compression leg, rockbolt stress state and variable cross-section are joined by the deflection of compression leg
System gets up, and the stress of anchor pole can quickly, be intuitively judged by observation, there is provided a kind of anchor suitable for engineering site
Bar support action fast evaluation method；
（4）Different engineering geological conditions, different variable cross-sections can be set by compression leg, can be realized not according to its compatible deformation
With allow die pressing type, so as to be adapted to various engineering type.
Brief description of the drawings
Fig. 1 and Fig. 2 is the schematic diagram of the utility model different visual angles.
Marginal data：1- top trays；2- variable cross-sections are by compression leg；3- lower trays；4- deep-slotted chip breakers；5- stress caution gages；6-
Warn pointer；7- bolt-nuts；8- anchor poles.
Embodiment
The utility model provides a kind of pressure-relieving achor bar pallet with alarm function, to make the purpose of this utility model, skill
Art scheme and effect are clearer, clear and definite, and specific embodiment of the present utility model is described in detail below in conjunction with accompanying drawing.
As shown in Fig. 1, the utility model is a kind of pressure-relieving achor bar pallet with alarm function, it is characterised in that：By allowing
Absorption systems and stress caution system is pressed to form.
Further, it is described to allow pressure absorption systems to be made up of top tray 1, variable cross-section by compression leg 2 and lower tray 3.It is described
Top tray 1 upper plane by the anchoring of bolt-nut 7, the deep-slotted chip breaker 4 of its bottom surface four contacts with variable cross-section by compression leg 2 respectively；
Described variable cross-section is by compression leg 2 totally four, and vertically the vertical central shaft annular array distribution of pallet, inclined relative to central shaft
State, its bottom are welded in lower tray 3, in the deep-slotted chip breaker 4 of top insertion top tray 1；The baseplane patch of described lower tray 3
Invest on country rock, plane is welded with variable cross-section by compression leg 2 thereon.
Further, described top tray 1 is circular high strength steel plate, and center pore-forming is used to pass through set anchor pole 8, and thickness is
18mm, its top surface are horizontal plane, and bottom surface is provided with four deep-slotted chip breakers 4, central shaft circular array of its deep-slotted chip breaker 4 along top tray 1
Distribution.
Further, described variable cross-section is special high tensile reinforcement by compression leg 2, has certain camber, its curvature is under
Supreme gradually increase；Bottom tapered section foreshortens to 10mm by 2 a diameter of 12mm of compression leg, top variable cross-section by the diameter of compression leg 2, its bottom
Portion is tilted and is firmly welded on the surface of lower tray 3, and top has been done in the deep-slotted chip breaker 4 of the embedded top tray 1 of round and smooth processing.Anchor pole 8 by
During to pulling capacity, by the top of compression leg 2, arcuately groove 4 slides variable cross-section, and tilt quantity increase, upper and lower two pallet approaches, and then plays
Allow pressure energy-absorbing effect.With the increase of the pulling capacity of anchor pole 8, variable cross-section deforms also more greatly, but because the bottom body of rod is straight by compression leg 2
Footpath is larger, therefore anti-load intensity will not weaken, and the reinforcing bar of different cross section and three-dimensional space shape can realize the different pressures that allows
Pattern.
Further, described lower tray 3 is circular high strength steel plate, and center pore-forming is used to pass through set anchor pole 8, and thickness is
15mm, plane and baseplane are horizontal plane thereon.
Further, the fluting shape of cross section of described deep-slotted chip breaker 4 is semicircle, diameter about 12mm；Deep-slotted chip breaker 4 is slotted
Length is 40-60mm.This fluting shape contributes to variable cross-section to be slided by the top round end of compression leg 2 in groove, reduces friction, realization allows
The purpose of pressure, and different slotting lengths and fluting direction can realize the different die pressing types that allows.
Further, described stress caution system is made up of stress caution gage 5 and warning pointer 6.Described stress
Caution gage 5 is arranged on the surface of top tray 1 of a certain top of deep-slotted chip breaker 4, and its length is identical with the length of deep-slotted chip breaker 4.Described
Pointer 6 is warned to be arranged on the lower section of top tray 1, top is enclosed on anchor pole 8, and stress caution gage 5 is pointed in end.
Further, described stress caution gage 5 carries background color, along variable cross-section by the direction color that compression leg 2 slides by
Shallow to deep subregion is set, the length of deep-slotted chip breaker 4 50% within its background color be green, 50%-80% is yellow, and more than 80% is red.
Further, described warning pointer 6 is the thin steel bar of " L " shape, and long side direction carries two annulus of size, and it is distinguished
Pass through and be enclosed on anchor pole 8 and a certain variable cross-section by the top of compression leg 2, short side direction sensing stress caution gage 5.In anchor pole 8 by drawing
During power, by the top of compression leg 2, arcuately groove 4 slides variable cross-section, and then interlocks and warn pointer 6 to make it along the edge of top tray 1
Stress caution gage 5 rotate.
The utility model is a kind of pressure-relieving achor bar pallet with alarm function, will be intended in specified location according to design requirement
After allowing the anchor pole 8 of pressure to be anchored in country rock, it can use according to the following steps：
（1）Installation is welded with the variable cross-section according to design requirement design by the lower tray 3 of compression leg 2, and its bottom surface is attached at country rock
External surface；
（2）The big small circle ring for warning pointer 6 is respectively fitted over anchor pole 8 and a certain variable cross-section by the top of compression leg 2；
（3）Top tray 1 of the installation with stress caution gage 5, variable cross-section is respectively embedded into pop-up by it by the top of compression leg 2
In the deep-slotted chip breaker 4 of the bottom of disk 1, the initial position that is placed in deep-slotted chip breaker 4, warning pointer 6 is set to point to stress caution gage 5
Initial position；
（4）Bolt-nut 7 is anchored at the top of anchor pole 8, fixed top tray 1；
（5）In use, the stress of anchor pole 8, variable cross-section continue run-off the straight deformation by compression leg 2 because being squeezed,
Arcuately groove 4 slides on its top, and then warning pointer 6 is rotated, and institute is right when turning to stress 5 a certain position of caution gage
The background color answered represents the current stress of anchor pole 8, it can be determined that the safety stock situation of the stress of anchor pole 8；If variable cross-section allows
Compression leg 2 slides into the end of deep-slotted chip breaker 4, and warning pointer 6 can not be rotated further, and variable cross-section by the flexural deformation of compression leg 2 it is larger when,
The load that warning anchor pole 8 is born is already close to ultimate load.
Claims (2)
- A kind of 1. pressure-relieving achor bar pallet with alarm function, by allowing pressure system and stress caution system to form, it is characterised in that Described allows pressure system to be made up of top tray, variable cross-section by compression leg and lower tray；Described variable cross-section is by compression leg totally four, along upper The vertical central shaft annular array distribution of lower tray, inclined relative to central shaft, its bottom is welded in lower tray, top In the deep-slotted chip breaker of embedded top tray；Described stress caution system is made up of stress caution gage and warning pointer；It is described by Power caution gage is arranged on the pop-up panel surface above a deep-slotted chip breaker, and its length is identical with the length of deep-slotted chip breaker, and carries background color.
- A kind of 2. pressure-relieving achor bar pallet with alarm function as claimed in claim 1, it is characterised in that affiliated variable cross-section Allow compression leg to be reinforcing bar, there is certain camber and bottom shank diameter is slightly larger compared with top；The arc that described pop-up tray bottom is provided with Shape groove fluting shape of cross section is semicircle.
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| CN201720661562.XU CN207080243U (en) | 2017-06-08 | 2017-06-08 | Pressure-relieving achor bar pallet with alarm function |
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| CN201720661562.XU CN207080243U (en) | 2017-06-08 | 2017-06-08 | Pressure-relieving achor bar pallet with alarm function |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107035395A (en) * | 2017-06-08 | 2017-08-11 | 山东科技大学 | Pressure-relieving achor bar pallet and application method with alarm function |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107035395A (en) * | 2017-06-08 | 2017-08-11 | 山东科技大学 | Pressure-relieving achor bar pallet and application method with alarm function |
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