CN104390536A - Mechanical blast hole spacing device - Google Patents
Mechanical blast hole spacing device Download PDFInfo
- Publication number
- CN104390536A CN104390536A CN201410542216.0A CN201410542216A CN104390536A CN 104390536 A CN104390536 A CN 104390536A CN 201410542216 A CN201410542216 A CN 201410542216A CN 104390536 A CN104390536 A CN 104390536A
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- pin
- spacer units
- big gun
- unit
- piston
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Abstract
The invention provides a mechanical blast hole spacing device for an axial air spaced powder charge structure. A piston of a spacing unit of the device is limited in a hole, formed by a base and a top cover, by a pin. When the mechanical blast hole spacing device is in use, the spacing unit is hung at the preset position of a blast hole by a pin pulling unit; then, a pin pulling handle of the pin pulling unit is pulled, and the pin in the spacing unit is pulled out. After the pin is pulled out, the piston is in close contact with the wall of the blast hole under the action of elastic force of a spring and is fixed at the design position of the blast hole. The pin pulling unit of the mechanical blast hole spacing device can be repeatedly used, so that the material utilization rate is improved, and the cost is lowered.
Description
Technical field
Patent of the present invention relates to a kind of escapement for bursting work, is applicable to vertically or is tilted to lower big gun hole, in axial decked charge structure structure, playing interval action.
Background technology
Along with the continuous progress of blasting technique, occurred diversified charge constitution, wherein axial air spaced loading structure is common a kind of charge constitution.Its method is that one section of air column is closed at the position utilizing escapement different in big gun hole, then continues powder charge.Axial air spaced loading can be played raising shot elevation, reduces explosive payload, reduces unit consumption, extends detonation gas action time, alleviates blasting medium overcrushing, prevent the effects such as blasting flyrock.Now conventional escapement has the hollow cylinder of air-spacer and sealing.The operation principle of air-spacer is the containment pockets gas cylinder loading diameter being filled with gases at high pressure being greater than blasthole diameter, there is rope with a scale in pocket one end system, first a certain scale of rope is fixed on big gun aperture, then the switch opens of gas cylinder is put into big gun hole and made it freely fall, pocket is in the process dropping down onto design attitude, gases at high pressure in gas cylinder are slowly full of pocket, make pocket extrude big gun hole wall thus form the effect that frictional force plays interval; Because pocket rope in dropping process is easily tied a knot, cause pocket to decline to gases at high pressure before design attitude and be full of pocket, can not continue to fall, affect demolition effect.According to the hollow cylinder interval of sealing, its gap length can not adjust at the scene, and use procedure is dumb, and can only be used for Bore bottom spacing charge structure.Patent of the present invention proposes a kind of escapement using the mechanism of spring fixing.
Summary of the invention
Patent of the present invention provides a kind of big gun span device, and in escapement, the elastic force of spring acts on piston, makes to produce normal pressure between piston and big gun hole wall, thus makes escapement be fixed on a certain position in big gun hole.
Mechanical type big gun span device in the present invention is made up of spacer units and unit of pulling pin.Wherein spacer units comprises base, top cover, spring, piston and pin composition, and unit of pulling pin is made up of pillar, baffle plate, spring, brake cable, handle of pulling pin.
Base in spacer units and top cover are screwed, and there are 4 gathering sills in the direction of 90 degree that base is separated by, and gathering sill is built with spring and piston, and top cover can the direction of motion of restricted spring and piston.Escapement is before loading big gun hole, and piston is fixed by four pins, limits it and moves, escapement loads in big gun hole and after being extracted by pin, piston outwards moves under the effect of spring force, with big gun hole wall close contact, produce frictional force, stop escapement to fall.
The base of spacer units, upper cover and piston all have pinhole, and pin bore axis becomes 15 degree of angles with the central axis of spacer units, and the direction of pull that steel wire rope is applied on pin is consistent with pin axis direction.
Spacer units periphery has 4 draw-in grooves, passes for detonator payment to a porter, prevents the payment to a porter of escapement extruding detonator from causing the generation of blind big gun.
Heart yearn one end of brake cable in unit of pulling pin connects handle of pulling pin, the other end is divided into 4 pins that 4 branches connect spacer units, when promote baffle plate and pull pull pin handle time, pulling force is reached pin by brake cable heart yearn by handle of pulling pin, and middle baffle plate passes through baffle plate, brake cable spool, baffle plate and struts transmit successively to spacer units top cover thrust, thus pin is extracted, pin pulling out device is separated with spacer units.Pin is pulled out the reposition under the action of the spring of rear braking core line, makes pin be convenient to insert the pinhole of next spacer units.Pull pin unit and pin can reuse, and improves the utilization rate of material.
Accompanying drawing explanation
The spacer units structure chart of Fig. 1 mechanical type big gun span device.
Fig. 2 mechanical type big gun span device schematic diagram.
Fig. 3 mechanical type big gun span device profilograph.
Detailed description of the invention
According to Figure of description, detailed description of the invention is described.
Fig. 1 is the spacer units structure chart of mechanical type big gun hole every device, wherein base 1 has 4 gathering sills 2.Base 1 and top cover 3 are fixed together by screw hole 4, and such gathering sill position forms a square hole.In hole, successively load spring 5 and piston 6, piston 6 can move in hole.Base 1, piston 6 and top cover 3 have pinhole 7, and the axis of the pinhole 7 on three is in alignment.Pin 8 inserts the pinhole 7 on top cover 3, piston 6 and base 1 successively, and piston 6 is limited in hole.The periphery of base 1 and top cover 3 has 4 draw-in grooves 9, passes through for detonator payment to a porter.
Fig. 2 is the schematic diagram of spacer units together with unit combination of pulling pin, Fig. 3 is mechanical type big gun span device profilograph, figure B-C post 10 act as the top cover 3 thrust that baffle plate in the process of pulling pin 15 transmits being passed to spacer units, to spacer units thrust, make spacer units in the process of pulling pin, keep static.Baffle plate 11 act as the component elastic force of spring 12 being passed to brake cable heart yearn 13, make pin 8 extract rear braking core line 13 and get back to original position, be convenient to pin 8 to insert next spacer units.4 pillars 10 are fixed and the thrust that baffle plate in the process of pulling pin 15 transmits are passed to pillar 10 by acting as of baffle plate 14.Thrust is passed to pillar 10 by brake cable spool 16 and baffle plate 14 by acting as of baffle plate 15, stops spacer units top cover to move upward.Brake cable has enough length will pull pin in unit feeding hole.To pull pin the acting as by brake cable heart yearn 13 pulling force to be passed on pin 8 and extracted of handle 17.
Use space before unit base 1 is separated with spring 5, piston 6, pin 8 together with being screwed in top cover 3.During use, first pin 8 is fixed in 4 branches of the brake cable heart yearn 13 of pulling pin in unit.Spring 5 is loaded after in hole that base 1 and top cover 3 formed, then by make in piston 6 press-in hole pinhole 7 on base 1, top cover 3 and piston 6 axis point-blank.Then pin 8 is inserted the structure that pinhole 7 forms Fig. 2.Owing to there is frictional force between pin 8 and pin hole wall 6, by unit of pulling pin, spacer units can be suspended in the air.Finally by brake cable spacer units sent into the design height in big gun hole.Pull handle 17 of pulling pin, pin 8 is pulled out, piston 6 under the effect of spring 5 outwards motion and with big gun hole wall close contact.To igniting primer and explosive be loaded after outer for unit pull-out-hole of pulling pin on spacer units top can reach the effect of axial air spaced loading.
If design spacer units is when charge segment middle, first bottom big gun hole, load igniting primer and explosive by design, then detonator payment to a porter snapped in draw-in groove and spacer units is called in design attitude in big gun hole, finally pin 8 being extracted and unit pull-out of pulling pin.The effect of axial air spaced loading can be reached again at spacer units top loading igniting primer and explosive.
Claims (3)
1. a mechanical type big gun span device, it is characterized in that: big gun span device is made up of spacer units and unit of pulling pin, the base of spacer units and top cover are in conjunction with formation 4 square openings, hole is built with spring and piston, piston is limited in hole by pin, when spacer units suspention to design height time, by pulling pin, pin is extracted by unit, the piston in spacer units under the effect of spring force with big gun hole wall close contact.
2. mechanical type big gun span device according to claim 1, is characterized in that: unit of pulling pin is made up of pillar, baffle plate, spring, brake cable, handle of pulling pin.
3. mechanical type big gun span device according to claim 1, it is characterized in that: when promote baffle plate and pull pull pin handle time, pulling force is passed to pin by brake cable heart yearn, thrust successively by baffle plate, brake cable spool, baffle plate and struts transmit to the top cover of spacer units, make other parts of pin and spacer units produce relative movement, thus pin is extracted.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410542216.0A CN104390536A (en) | 2014-10-15 | 2014-10-15 | Mechanical blast hole spacing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410542216.0A CN104390536A (en) | 2014-10-15 | 2014-10-15 | Mechanical blast hole spacing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104390536A true CN104390536A (en) | 2015-03-04 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410542216.0A Pending CN104390536A (en) | 2014-10-15 | 2014-10-15 | Mechanical blast hole spacing device |
Country Status (1)
| Country | Link |
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| CN (1) | CN104390536A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105651130A (en) * | 2016-04-11 | 2016-06-08 | 中国电建集团成都勘测设计研究院有限公司 | Air-spaced powder charging auxiliary device |
| CN106959062A (en) * | 2017-04-13 | 2017-07-18 | 中建五局土木工程有限公司 | Multiple-row blasting device for LARGE APERTURE STATIC IMAGING fractured rock |
| CN109373842A (en) * | 2018-12-18 | 2019-02-22 | 福州大学 | A kind of blasthole being applicable in non-coal mine does not couple cumulative escapement and its application method |
| CN109387126A (en) * | 2018-12-18 | 2019-02-26 | 福州大学 | It is a kind of not couple cumulative escapement and its using the structure in non-coal mine blasthole |
| CN110332867A (en) * | 2019-08-03 | 2019-10-15 | 贵州久远爆破工程有限责任公司 | A kind of air bench blasting radial air interval charging device |
-
2014
- 2014-10-15 CN CN201410542216.0A patent/CN104390536A/en active Pending
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105651130A (en) * | 2016-04-11 | 2016-06-08 | 中国电建集团成都勘测设计研究院有限公司 | Air-spaced powder charging auxiliary device |
| CN105651130B (en) * | 2016-04-11 | 2017-05-10 | 中国电建集团成都勘测设计研究院有限公司 | Air-spaced powder charging auxiliary device |
| CN106959062A (en) * | 2017-04-13 | 2017-07-18 | 中建五局土木工程有限公司 | Multiple-row blasting device for LARGE APERTURE STATIC IMAGING fractured rock |
| CN106959062B (en) * | 2017-04-13 | 2018-07-20 | 中建五局土木工程有限公司 | Multiple-row blasting device for LARGE APERTURE STATIC IMAGING fractured rock |
| CN109373842A (en) * | 2018-12-18 | 2019-02-22 | 福州大学 | A kind of blasthole being applicable in non-coal mine does not couple cumulative escapement and its application method |
| CN109387126A (en) * | 2018-12-18 | 2019-02-26 | 福州大学 | It is a kind of not couple cumulative escapement and its using the structure in non-coal mine blasthole |
| CN110332867A (en) * | 2019-08-03 | 2019-10-15 | 贵州久远爆破工程有限责任公司 | A kind of air bench blasting radial air interval charging device |
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Legal Events
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| C06 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20150304 |