CN207703091U - A kind of deep hole blasting deformation charge device - Google Patents
A kind of deep hole blasting deformation charge device Download PDFInfo
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- CN207703091U CN207703091U CN201721816940.3U CN201721816940U CN207703091U CN 207703091 U CN207703091 U CN 207703091U CN 201721816940 U CN201721816940 U CN 201721816940U CN 207703091 U CN207703091 U CN 207703091U
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Abstract
A kind of deep hole blasting deformation charge device of the utility model offer and its design method, the device includes several stabilizer blades and is set to the hinged disk of stabilizer blade upper end, the fixed link through disk body setting is equipped in the middle part of the hinged disk, bottom of fixed is equipped with loosing and tightening structure, one of stabilizer blade upper edge leg length direction is equipped with several hooks, compound elastic band is connected on the hook, the compound elastic band is made of elastic string and cord, cord is built in elastic string, compound elastic band one end is connected with hook on stabilizer blade, one end is freely sagging after the loosing and tightening structure of bottom of fixed, compound elastic band bottom connecting shackle, for hanging explosive.The utility model is simple in structure, labor intensity easy to use, reducing construction personnel, improves loading rate, has saved powder charge cost, highly practical.
Description
Technical field
The utility model belongs to blasting technique field, and in particular to a kind of deep hole blasting deformation charge device and its design side
Method.
Background technology
Blast hole projectile filling process is extremely important in deep hole blasting construction, directly affects the quality of demolition effect.It is used at present
Finished cylinder shaped explosive charge is largely the shaped explosive charge of film packaging, and dynamiter directly loses the blasting charge in blasthole or using artificial
The blasting charge is hung in blasthole with cord.The former, the blasting charge is packed under the action of from gravity in blasthole, is easy because blasthole is deeper
Cause explosive lapse rate excessive, to make explosive change its performance by excessive densification, and then changes blast hole loading structure, and
And explosive may be caused by from outer detonation, there are larger security risks；The latter needs that the blasting charge is manually hung in big gun with lifting rope
In hole, the blasting charge inevitably collides with blasthole inner wall during hanging in, and leads to explosive bags burst, influences project progress and cleaning
Trouble, working efficiency is low, and labor intensity is big.Current existing explosion deformation charge device has many new thinkings, but is difficult to
Coordinate the relationship of powder charge economy and applicability.
" auxiliary device of blast hole projectile filling in a kind of blast working " of Patent No. CN205860893U comprising rotation dress
It sets, lifting rope, drop hanger, rotary shaft, clamping plate, crank, holder, stand tube, handle, first with drop hanger by explosive jacket when which implements
Firmly, it places into blasthole, then by tumbler, slowly discharges lifting rope, when explosive reaches precalculated position, then shake and hang
Rope, makes drop hanger be detached from from the blasting charge, rotary motion device makes lifting rope pull out drop hanger by blasthole.The device is relied on and is manually shaken
Shake handle, loading rate is low, uses duration；Explosive reaches precalculated position by shaking lifting rope, so that drop hanger is detached from from the blasting charge, grasps
It is big to make difficulty, and explosive cannot be accurately placed in predetermined charge positions.
" auxiliary device of blast hole projectile filling in a kind of blast working " of Patent No. CN206488707U comprising load-bearing
It is face, headstock, recombination line, roller, cartridge, PLC controller, wheel, pedestal, explosive cartridge, pressure sensor, baffle, automatically controlled
Explosive is first rolled into the inside of cartridge, is controlled by PLC by switch, isochronous controller, synchronous motor when the device is implemented
Device processed enables isochronous controller, and isochronous controller makes synchronous working machine work, at this time roller turn, the recombination line wound on roller
Release, make cartridge fall into explosion it is dynamic in, when cartridge reaches the bottom in explosion hole, the pressure sensor of cartridge bottom by
Force information back to PLC controller, at this time PLC controller are made the backing pin of electric-controlled switch withdraw same by pressure, pressure sensor
When so that synchronous motor is inverted by isochronous controller, roller withdraws recombination line, and cartridge rises, effect of the baffle in gravity
Under around hinged shaft rotate down 90 °, explosive cartridge falls into the bottom in explosion hole, after cartridge is risen go back to ground, so that baffle is replied initial
State makes electric-controlled switch reset by PLC controller, repeats above-mentioned powder charge and continues powder charge.The device uses critical constraints
In execution conditions, and device is complicated for operation, bad adaptability, loading rate are low, of high cost.
Therefore, research and design one kind can significantly improve loading rate, reduce hand labor intensity, improve powder charge effect,
The deep hole blasting auxiliary device of relatively low construction cost has a very important significance to substitute the existing mode for loading powder stick.
Utility model content
In view of the problems of the existing technology, the utility model is the technology for solving problems of the prior art and using
Scheme is as follows：
A kind of deep hole blasting deformation charge device, including several stabilizer blades and the hinged disk for being set to stabilizer blade upper end, feature
It is：The fixed link through disk body setting is equipped in the middle part of the hinged disk, bottom of fixed is equipped with loosing and tightening structure, one of branch
Foot upper edge leg length direction is equipped with several hooks, connects compound elastic band on the hook, the compound elastic band is by elastic
Band and cord composition, cord are built in elastic band, and compound elastic band one end passes through fixed link with connection, one end is linked up on stabilizer blade
Free sagging, compound elastic band bottom connecting shackle, for hanging explosive after the loosing and tightening structure of bottom.
There are three the stabilizer blades, and support construction is formed after being hinged with hinged disk, and stabilizer blade bottom is equipped with elastic expansion joint,
For adjusting leg length and support construction balance.
The elastic band selects the material good, that toughness is good of elasticity to be made, and width 10-50mm, the cord selects intensity
High, retractility difference material is made, and a diameter of 1-3mm, compound elastic strip length is according to elastic band stiffness factor and blast hole depth
It determines, length will meet：The blasting charge drives in compound elastic band dropping process, and cord is tensioned and generates sufficiently large rush suddenly
Tension is hit, to destroy packing explosive structure.
The loosing and tightening structure of the bottom of fixed setting includes one piece of flexible steel sheet and several trip bolts, and steel disc will be fixed
After bar and compound elastic band encircle clamping, is realized and clamped using trip bolt, having for compound elastic band is controlled using loosing and tightening structure
Imitate action length.
The suspension hook can destroy explosive when the cord built in compound elastic band is tensioned suddenly and generates certain impact tension
Packaging structure makes the blasting charge get rid of de- hook automatically and accurately falls in predetermined charge positions.
The method of determination of compound elastic band effective length is specific as follows in the present apparatus：
Set the present apparatus applied to blast hole depth as the blasthole of S when, effective length is L when compound elastic band is freely sagging0
(the compound elastic band of lightweight and suspension hook are used, gravity is negligible, so being stretched caused by disregarding compound elastic band dead weight and suspension hook weight
It is long), cord effective length is set as L in compound elastic band1If the blasting charge drives and is fallen on away from a upper powder charge packet under compound elastic band
When (if it is first pack is filled, then for away from blasthole bottom) 1.0-1.5m, i.e., when elastic band is stretched to isometric with cord, cord
Tensioning, formula (1) is obtained according to by compound elastic band, suspension hook, the constituted integral energy conservation of the blasting charge：
In formula：K is TPU elastic bands stiffness factor (N/m)；M is blasting charge quality (kg)；V is blasting charge when cord is tensioned
Speed (m/s)；G is acceleration of gravity (taking 9.8N/kg)；
Twice that reflection stress is incident stress is reflected to form in fixed end obtain formula (2) by stress wave
The ρ of σ=2 Cv (2)
In formula：σ is the snap tension (Pa) that cord is tensioned generation suddenly；ρ C are the wave impedance (kgm of cord-2·s-1)；
V is explosive speed packet (m/s) when cord is tensioned；
When snap tension is more than packing explosive structure allowable stress σHoldWhen, blasting charge packaging structure destroys, by formula (2) basis
Packing explosive structure obtains allowable stress σHold, blasting charge minimum speed when cord is tensioned is found out under given cord material, is brought into
Formula (1) finds out solution maximum value and obtains (L1-L0) max, to ensure that the blasting charge is reached away from a upper powder charge packet (if it is filling first
A pack, then for away from blasthole bottom) 1.0-1.5m when the speed that has, sufficiently large tension is generated when rope can be made to be tensioned suddenly
Packing explosive structure is destroyed, (L is taken1-L0)<(L1-L0)max, and L1≈ S, L0Value range be 0.4-1.5m, first in this range
One initial L of middle selection0, verify whether to meet (L1-L0)<(L1-L0)max, this L if meeting0It is that compound elastic band is effectively long
Degree, if not satisfied, then increasing L0, until meeting (L1-L0)<(L1-L0)max。
The utility model has the following advantages that：
When the deep hole blasting deformation charge device powder charge, the blasting charge, by static release, drives compound pine under human assistance
Taut band falls, compound elastic when away from a upper powder charge packet (if filling first pack, for away from blasthole bottom) 1.0-1.5m
It is tensioned suddenly with built-in cord, the cord in elastic band generates snap tension by relaxed state to tensioning state, and generation is rushed
Tension force effect is hit in the suspension hook and blasting charge connecting portion, the packing explosive structure tangled is destroyed, keeps the blasting charge automatic
It gets rid of de- hook and accurately falls the labor intensity for reducing construction personnel in predetermined charge positions, improve loading rate, save
Powder charge cost, is a kind of deep hole blasting deformation charge device easy to use.
Description of the drawings
Fig. 1 is utility model device structural schematic diagram；
Wherein：1. stabilizer blade, 2. hinged disks, 3. compound elastic bands, 4. cords, 5. fixed links, 6. elastic expansion joints, 7. hang
Hook, 8. hooks, 9. loosing and tightening structures.
Specific implementation mode
Below with reference to the embodiments and with reference to the accompanying drawing the technical solutions of the present invention will be further described, such as
Shown in Fig. 1, a kind of deep hole blasting deformation charge device, including several stabilizer blades 1 and the hinged disk 2 for being set to 1 upper end of stabilizer blade, it is hinged
2 middle part of disk is equipped with the fixed link 5 through disk body setting, and 5 bottom of fixed link is equipped with loosing and tightening structure 9,1 upper edge branch of one of stabilizer blade
Foot length direction is equipped with several hooks 8, and compound elastic band 3 is connected on the hook 8, the compound elastic band 3 by elastic band and
Cord 4 forms, and cord is built in elastic band, and 3 one end of compound elastic band is connect with hook 8 on stabilizer blade, and one end passes through fixed link
Free sagging, 3 bottom connecting shackle 7 of compound elastic band, for hanging explosive after the loosing and tightening structure 9 of bottom.
There are three stabilizer blades 2, and support construction is formed after being hinged with hinged disk 2, and stabilizer blade bottom is equipped with elastic expansion joint 6,
For adjusting leg length and support construction balance.
Elastic band selects the material good, that toughness is good of elasticity to be made, width 10-50mm, and cord 4 selects intensity high, flexible
Property difference material be made, a diameter of 1-3mm, 3 length of compound elastic band is determined according to elastic band stiffness factor and blast hole depth,
Length will meet：The blasting charge drives in compound elastic band dropping process, and cord is tensioned and generates sufficiently large snap tension suddenly,
To destroy packing explosive structure.
The loosing and tightening structure 9 of 5 bottom of fixed link setting includes one piece of flexible steel sheet and several trip bolts, and steel disc is by fixed link
5 and after compound elastic band encircles clamping, it is realized and is clamped using trip bolt, having for compound elastic band 3 is controlled using loosing and tightening structure 9
Imitate action length.
Suspension hook 7 can destroy explosive when the cord 4 built in compound elastic band 3 is tensioned suddenly and generates certain impact tension
Packaging structure makes the blasting charge get rid of de- hook automatically and accurately falls in predetermined charge positions.
(under free hang, compound elastic band presss from both sides the effective length of compound elastic band 3 from loosing and tightening structure 9 in the present apparatus
Hold position to suspension hook 7 length) determination method it is as follows：
Set the present apparatus applied to blast hole depth as the blasthole of S when, effective length is L when compound elastic band 3 is freely sagging0
(the compound elastic band 3 of lightweight and drop hanger 7 are used, gravity is negligible, so caused by disregarding compound elastic band dead weight and suspension hook weight
Elongation), setting 4 effective length of cord in compound elastic band 3, (cord 4 is since by 9 retaining part of loosing and tightening structure to bottom suspension hook 7
Length) be L1If the blasting charge drives and is fallen on away from a upper powder charge packet (if it is first pack is filled, then under compound elastic band 3
For away from blasthole bottom) 1.0-1.5m when, i.e., when elastic band is stretched to isometric with cord 4, cord 4 be tensioned, according to by compound elastic
The constituted integral energy conservation of band 3, suspension hook 7, the blasting charge obtains formula (1)：
In formula：K is TPU elastic bands stiffness factor (N/m)；M is blasting charge quality (kg)；V is blasting charge when cord 4 is tensioned
Speed (m/s)；G is acceleration of gravity (taking 9.8N/kg)；
Twice that reflection stress is incident stress is reflected to form in fixed end obtain formula (2) by stress wave
The ρ of σ=2 Cv (2)
In formula：σ is the snap tension (Pa) that tensioning generates suddenly of cord 4；ρ C are the wave impedance (kgm of cord 4-2·s-1)；V is explosive speed packet (m/s) when cord 4 is tensioned；
When snap tension is more than packing explosive structure allowable stress σHoldWhen, blasting charge packaging structure destroys, by formula (2) basis
Packing explosive structure obtains allowable stress σHold, blasting charge minimum speed when cord 4 is tensioned is found out under given cord material, is brought into
Formula (1) finds out solution maximum value and obtains (L1-L0) max, to ensure that the blasting charge is reached away from a upper powder charge packet (if it is filling first
A pack, then for away from blasthole bottom) 1.0-1.5m when the speed that has, sufficiently large tension is generated when rope can be made to be tensioned suddenly
Packing explosive structure is destroyed, (L is taken1-L0)<(L1-L0)max, and L1≈ S, L0Value range be 0.4-1.5m, first in this range
One initial L of middle selection0, verify whether to meet (L1-L0)<(L1-L0)max, this L if meeting0It is that compound elastic band 3 is effective
Length, if not satisfied, then increasing L0, until meeting (L1-L0)<(L1-L0)max。
Operation principle：When using patent device, the present apparatus is set up above blasthole first, by being carried out to stabilizer blade 1
Adjustment makes suspension hook 7 be directed at blasthole, is convenient for powder charge, compound elastic band 3 is determined according to the ratio of elongation of the depth of blasthole and elastic band
Length includes the length of the length of cord 4 and elastic band, and the loosing and tightening structure 9 of 5 lower part of fixed link is adjusted, makes compound elastic band 3
Effective interaction length (under free hang, length of the compound elastic band from 9 retaining part of loosing and tightening structure to suspension hook 7) meet
It is required that at this moment hanging over the blasting charge on suspension hook 7, the blasting charge, by static release, drives under compound elastic band 3 under human assistance
It falls, when away from a upper powder charge packet (if filling first pack, for away from blasthole bottom) 1.0-1.5m, cord 4 is tensioned and produces
A raw sufficiently large snap tension, the snap tension act on suspension hook 7 and blasting charge connecting portion, destroy what suspension hook 7 tangled
The packaging structure of explosive makes the blasting charge get rid of de- suspension hook automatically and accurately fall in predetermined charge positions.
The scope of protection of the utility model is not limited to the above embodiments, it is clear that those skilled in the art can be right
The utility model carries out various changes and deformation without departing from the scope of the utility model and spirit.If these changes and deformation
Belong in the range of the claims of the present invention and its equivalent technology, then the intention of the utility model also include these change and
Including deformation.
Claims (5)
1. a kind of deep hole blasting deformation charge device, including several stabilizer blades and the hinged disk for being set to stabilizer blade upper end, feature exist
In：The fixed link through disk body setting is equipped in the middle part of the hinged disk, bottom of fixed is equipped with loosing and tightening structure, one of stabilizer blade
Upper edge leg length direction is equipped with several hooks, connects compound elastic band on the hook, the compound elastic band is by elastic band
It is formed with cord, cord is built in elastic band, and compound elastic band one end passes through fixed link bottom with connection, one end is linked up on stabilizer blade
Free sagging, compound elastic band bottom connecting shackle, for hanging explosive after the loosing and tightening structure in portion.
2. a kind of deep hole blasting deformation charge device as described in claim 1, it is characterised in that：There are three the stabilizer blades,
Support construction is formed after being hinged with hinged disk, stabilizer blade bottom is equipped with elastic expansion joint, is tied for adjusting leg length and support
Structure balances.
3. a kind of deep hole blasting deformation charge device as described in claim 1, it is characterised in that：The elastic band selects elasticity
Material good, that toughness is good is made, and width 10-50mm, the cord selects the material of intensity height, retractility difference to be made, diameter
For 1-3mm.
4. a kind of deep hole blasting deformation charge device as described in claim 1, it is characterised in that：The bottom of fixed setting
Loosing and tightening structure include one piece of flexible steel sheet and several trip bolts, after fixed link and compound elastic band are encircled clamping by steel disc,
It is realized and is clamped using trip bolt, the effective interaction length of compound elastic band is controlled using loosing and tightening structure.
5. a kind of deep hole blasting deformation charge device as described in claim 1, it is characterised in that：The compound elastic strip length
It is determined according to elastic band stiffness factor and blast hole depth.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721816940.3U CN207703091U (en) | 2017-12-22 | 2017-12-22 | A kind of deep hole blasting deformation charge device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721816940.3U CN207703091U (en) | 2017-12-22 | 2017-12-22 | A kind of deep hole blasting deformation charge device |
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| CN207703091U true CN207703091U (en) | 2018-08-07 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107860277A (en) * | 2017-12-22 | 2018-03-30 | 武汉大学 | A kind of deep hole blasting deformation charge device and its design method |
| CN109297377A (en) * | 2018-12-10 | 2019-02-01 | 福建海峡科化富兴建设工程有限公司 | A kind of ponding blast hole projectile filling method |
-
2017
- 2017-12-22 CN CN201721816940.3U patent/CN207703091U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107860277A (en) * | 2017-12-22 | 2018-03-30 | 武汉大学 | A kind of deep hole blasting deformation charge device and its design method |
| CN107860277B (en) * | 2017-12-22 | 2024-07-02 | 武汉大学 | Deep hole blasting auxiliary charging device and design method thereof |
| CN109297377A (en) * | 2018-12-10 | 2019-02-01 | 福建海峡科化富兴建设工程有限公司 | A kind of ponding blast hole projectile filling method |
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