CN86209599U

CN86209599U - Punching bullet for rock

Info

Publication number: CN86209599U
Application number: CN 86209599
Authority: CN
Inventors: 罗连纥
Original assignee: STATE-OPERATED JINSHAN MACHINERY FACTORY
Current assignee: STATE-OPERATED JINSHAN MACHINERY FACTORY
Priority date: 1986-11-26
Filing date: 1986-11-26
Publication date: 1987-07-22

Abstract

The utility model discloses a punching bullet for rock blasting, comprising a detonator, a booster charge, a cartridge, dynamite, and a charge cover. The cost of manufacture is low. The efficiency of punching is high. No glass splinter when explode. The using is safety. The utility model can obtain bores with diameter of 40-70 millimeters and depth of 0.8-1.5 meters in 20-30 minutes If connect the utility model in parallel, the punching bullet for rock blasting and cut and pulverize the rock, or simultaneously punch a plurality of bores.

Description

Punching bullet for rock

The utility model belongs to the utensil of rock blasting perforation.

At present, punching is main with drill rod and rock drill before the rock blasting, with drill rod and sledgehammer punching, efficient is low, labour intensity is big, two people can only cut a hole 40 millimeters of diameter phi 30～φ every day, dark 1 meter hole, and the employing air drill, though perforating efficiency is higher, some scene is provided with the power supply difficulty, and rock drill power consumption is big, component fatigue and quick abrasion, especially the rock drill bore bit life-span lacks, and consumption is big, the bore bit long working of the hand-held dither of operator, cause capillary and the neural paralysis tremble disease that is easy to get, simultaneously, the dust that the noise of rock drill and rock drill operation produce is also influential to health.

The purpose of this utility model provides a kind of advantages of simplicity and high efficiency rock perforation bullet.

Rock perforation bullet is by detonator, booster gains, cartridge case, explosive and drug-shaped cover are formed, manufacture and select Engineering detonator for use, booster gains, composite explosives, metal medicine cover, cartridge case can be used paper, timber or plastics are material, drug-shaped cover is taper, tapering is 35 °～42 °, 2～4 millimeters of awl cover wall thickness, high 106～130 millimeters, after full bullet has assembled, there is certain space the cone-shaped hood baseplane apart from the cartridge case baseplane, the bullet bottom will bore a hole during use near punching the orientation when detonating primer, cause that booster gains detonates, then cause main blasting charge blast, according to the Mohaupt effect principle, explosive charge produces powerful detonation wave, under the effect of detonation pressure power, from the metal cap vertex of a cone, metal overlay is pressed to axis with very high speed, reach the cover generation high velocity impact of axis, the collision result makes metallic interior surface form high temperature, at a high speed, the metal jet of high pressure rushes at rock, because the speed height of metal jet, energy density is big, on the rock surface shock point, produce atmospheric pressure up to a million, force the rock on the shock point that strong compression takes place, pulverize and form perforation.

According to the rock perforation bullet of selecting different model, can obtain 70 millimeters of diameter phi 40～φ, dark 0.8～1.5 meter hole, several perforation bullets detonate simultaneously if connect, can obtain several rock blastings hole in 20～30 minutes, utilize small-sized perforation bullet can play pulverization, utilize the metal drug-shaped cover of definite shape, can also reach the purpose of cutting rock large rock mass.Do not produce splash after the blast, safe in utilization, cost is low, efficient is high.

Accompanying drawing 1. is product structure figure of rock perforation bullet.Among the figure, detonator (1), booster gains (2), cartridge case (3), explosive (4), drug-shaped cover (5).

In conjunction with the accompanying drawings 1. can illustrate of the present utility model ... individual embodiment.

In the accompanying drawing 1,6.8 millimeters of engineering electric cap (1) φ, 36 * 25 millimeters of booster gains (2) φ, 95 millimeters of brown paper pharmacy tube internal diameter φ, 105 millimeters of external diameter φ, high 220 millimeters, explosive is that TNT mixes by 1:1 with hexogen.42 ° of cast iron metal drug-shaped cover taper angles, 3.5 millimeters of wall thickness, 120 millimeters of height, 30 millimeters of drug-shaped cover bottom surfaces, assembling back apart from the cartridge case baseplane, 35 millimeters of space internal diameter φ, the cartridge case two ends seal with paper.

Claims

1, a kind of rock blasting is made up of detonator, booster gains, cartridge case, explosive and drug-shaped cover with the perforation bullet, it is characterized in that:

A, drug-shaped cover are taper,

There is a space B, drug-shaped cover baseplane apart from the cartridge case bottom face.

2, by the said perforation bullet of claim 1, it is characterized in that 35 °～42 ° degree of drug-shaped cover tapering, 2～4 millimeters of awl cover body wall thickness.

3, by claim 1,2 said perforation bullets, it is characterized in that the cartridge case material is paper timber or plastics.