CN112359906B - Laval type gas-liquid double-power dust-free rock breaking machine - Google Patents

Laval type gas-liquid double-power dust-free rock breaking machine Download PDF

Info

Publication number
CN112359906B
CN112359906B CN202011310016.4A CN202011310016A CN112359906B CN 112359906 B CN112359906 B CN 112359906B CN 202011310016 A CN202011310016 A CN 202011310016A CN 112359906 B CN112359906 B CN 112359906B
Authority
CN
China
Prior art keywords
hydraulic
drill rod
cylinder
rock breaking
loading
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
CN202011310016.4A
Other languages
Chinese (zh)
Other versions
CN112359906A (en
Inventor
沈承金
高二庆
吉喆
黄廷磊
宋庆雷
李蒙
娄林祥
李娟�
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Xuzhou But Construction Machinery Manufacturing Joint Stock Co ltd
China University of Mining and Technology CUMT
Original Assignee
Xuzhou But Construction Machinery Manufacturing Joint Stock Co ltd
China University of Mining and Technology CUMT
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Xuzhou But Construction Machinery Manufacturing Joint Stock Co ltd, China University of Mining and Technology CUMT filed Critical Xuzhou But Construction Machinery Manufacturing Joint Stock Co ltd
Priority to CN202011310016.4A priority Critical patent/CN112359906B/en
Publication of CN112359906A publication Critical patent/CN112359906A/en
Application granted granted Critical
Publication of CN112359906B publication Critical patent/CN112359906B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Classifications

    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02F—DREDGING; SOIL-SHIFTING
    • E02F5/00—Dredgers or soil-shifting machines for special purposes
    • E02F5/30—Auxiliary apparatus, e.g. for thawing, cracking, blowing-up, or other preparatory treatment of the soil
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D47/00—Separating dispersed particles from gases, air or vapours by liquid as separating agent
    • B01D47/06—Spray cleaning
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B1/00—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means
    • B05B1/02—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to produce a jet, spray, or other discharge of particular shape or nature, e.g. in single drops, or having an outlet of particular shape
    • B05B1/04—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to produce a jet, spray, or other discharge of particular shape or nature, e.g. in single drops, or having an outlet of particular shape in flat form, e.g. fan-like, sheet-like
    • B05B1/044—Slits, i.e. narrow openings defined by two straight and parallel lips; Elongated outlets for producing very wide discharges, e.g. fluid curtains
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B13/00—Machines or plants for applying liquids or other fluent materials to surfaces of objects or other work by spraying, not covered by groups B05B1/00 - B05B11/00
    • B05B13/02—Means for supporting work; Arrangement or mounting of spray heads; Adaptation or arrangement of means for feeding work
    • B05B13/0278—Arrangement or mounting of spray heads
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C19/00—Alloys based on nickel or cobalt
    • C22C19/03—Alloys based on nickel or cobalt based on nickel
    • C22C19/05—Alloys based on nickel or cobalt based on nickel with chromium
    • C22C19/051—Alloys based on nickel or cobalt based on nickel with chromium and Mo or W
    • C22C19/057—Alloys based on nickel or cobalt based on nickel with chromium and Mo or W with the maximum Cr content being less 10%
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C27/00—Alloys based on rhenium or a refractory metal not mentioned in groups C22C14/00 or C22C16/00
    • C22C27/04—Alloys based on tungsten or molybdenum
    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
    • C23C24/00—Coating starting from inorganic powder
    • C23C24/08—Coating starting from inorganic powder by application of heat or pressure and heat
    • C23C24/10—Coating starting from inorganic powder by application of heat or pressure and heat with intermediate formation of a liquid phase in the layer
    • C23C24/103—Coating with metallic material, i.e. metals or metal alloys, optionally comprising hard particles, e.g. oxides, carbides or nitrides
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02F—DREDGING; SOIL-SHIFTING
    • E02F9/00—Component parts of dredgers or soil-shifting machines, not restricted to one of the kinds covered by groups E02F3/00 - E02F7/00
    • E02F9/20—Drives; Control devices
    • E02F9/22—Hydraulic or pneumatic drives

Abstract

The invention discloses a Laval type gas-liquid dual-power dust-free rock breaking machine tool, which comprises a pneumatic loading mechanism, a hydraulic loading mechanism, a drill rod rock breaking mechanism and an atomizing and spraying dust catching mechanism, wherein the pneumatic loading mechanism comprises a gas control loop, a cylinder, a gas piston and a gas sealing assembly; the hydraulic loading mechanism comprises a hydraulic control loop, a hydraulic oil cylinder, a hydraulic piston, an oil seal assembly and a hydraulic energy storage chamber; the drill rod rock breaking mechanism comprises a piston rod and a drill rod which are connected in sequence; the atomizing, spraying and dust-catching mechanism is positioned on the lower end surface of the drill rod cylinder body. In the invention, the air pressure and hydraulic input loading adopts a Laval structure, and the Laval structure has high loading speed and larger impact force; the primary resonance loading obtains larger rock breaking force, the secondary high-frequency loading carries out secondary impact, and the rock breaking efficiency is high; the fine atomized water mist has good dust catching effect and small water consumption, and is a high-efficiency environment-friendly rock breaking machine tool.

Description

Laval type gas-liquid double-power dust-free rock breaking machine
Technical Field
The invention belongs to the field of engineering machinery, and particularly relates to a Laval type gas-liquid double-power dust-free rock breaking machine.
Background
The excavator is the most widely used machine of engineering machinery, and with the continuous expansion of engineering machinery application field, utilize quick change device to break rock machines and tool and excavator dipper and connecting rod and be connected, just become a broken rock machine, can realize crushing function, satisfy work such as crushing, broken rock and demolish.
The rock breaking machine is mainly a breaking hammer, CN111468218A breaking hammer for mine is the most representative rock breaking machine, the invention is hydraulically driven, nitrogen pressure is assisted to drive a piston rod, and the piston rod impacts a drill rod to realize rock breaking action. CN111188510A hydraulic breaking hammer with static pressure bearing structure invents an upper hydraulic cylinder body (nitrogen), a middle hydraulic cylinder body (big chamber) and a lower hydraulic cylinder body (small chamber), and utilizes nitrogen power and middle cylinder hydraulic power to realize rapid striking and secondary striking function of a lower cylinder.
CN111456618A A Secondary impact Hydraulic breaking hammer is characterized in that a secondary drill rod is sleeved in a main drill rod, a piston rod simultaneously impacts the main drill rod and the secondary drill rod to finish primary impact, and secondary impact is realized along with gradual pressing down of the drill rod. CN111074961A high-frequency breaking hammer invention hydraulic motor drive four groups of different direction eccentric wheels to rotate, drive drill rod reciprocating vibration, realize drill rod high-frequency breaking function.
In order to improve the environmental pollution caused by dust generated in the crushing operation, CN211660077U, second-level crushing hammer for producing green ecological mine limestone, discloses that a dust hood is additionally arranged at the end of a drill rod, and a fan and a dust collector are arranged for removing dust. CN111468218A breaking hammer for mine is to install a water spraying device at the end of the breaking hammer to spray water to the working breaking drill rod to realize dust fall.
However, the improvement of the working efficiency of the existing breaking hammer is always the pursuit of targets of scientific researchers, and a large amount of water for spraying dust fall around the breaking machine can cause new problems. The rock breaking machine tool adopts a combined loading mode of low-frequency air pressure/hydraulic resonance impact and high-frequency hydraulic secondary impact rock breaking, the low-frequency air pressure and the high-frequency hydraulic pressure are loaded once, the high-frequency hydraulic pressure is continuously loaded for multiple times, the reciprocating cyclic impact is realized, the primary resonance loading obtains larger rock breaking force, the secondary high-frequency loading is realized for secondary impact, and the rock breaking efficiency is high.
Disclosure of Invention
The problems that the efficiency of various existing crushing machines is low, the dust is serious in the crushing process, the abrasion of the crushing machines is serious and the like are solved. The invention aims to provide a Laval type gas-liquid double-power dust-free rock breaking machine which can be conveniently connected with an excavator so as to solve the problems.
In order to achieve the purpose, the invention adopts the technical scheme that:
the utility model provides a two power dustless broken rock machines of laval formula gas-liquid, includes that pneumatic loading mechanism, hydraulic loading mechanism, drill rod break rock mechanism, atomizing spraying catch dirt mechanism, wherein:
the pneumatic loading mechanism comprises a gas control loop, a cylinder, a gas piston and a gas sealing assembly, wherein the gas piston is positioned in the cylinder, the gas control loop is communicated with the cylinder, and the gas sealing assembly is arranged at the bottom of the cylinder; the cylinder is of a Laval structure and is arranged in the pneumatic shell;
the hydraulic loading mechanism comprises a hydraulic control circuit, a hydraulic oil cylinder, a hydraulic piston, an oil seal assembly and a hydraulic energy storage chamber, wherein the hydraulic oil cylinder is positioned below the air cylinder, the hydraulic piston is positioned in the hydraulic oil cylinder, the hydraulic control circuit is communicated with the hydraulic oil cylinder, and the oil seal assembly is positioned below the hydraulic oil cylinder; the hydraulic control loop is internally provided with a Laval structure hydraulic input pipeline; the hydraulic oil cylinder is arranged in the hydraulic shell, and the upper end of the hydraulic shell is connected with the lower end of the pneumatic shell;
the drill rod rock breaking mechanism comprises a piston rod and a drill rod which are sequentially connected, wherein the piston rod penetrates through the cylinder and the oil cylinder and is connected with the gas piston and the hydraulic piston; one part of the drill rod is positioned in the drill rod cylinder body, and the head part of the drill rod extends out of the lower end of the drill rod cylinder body; the upper end of the drill rod cylinder body is connected with the lower end of the hydraulic shell;
the atomizing, spraying and dust-catching mechanism is positioned on the lower end surface of the drill rod cylinder body.
The drill rod cylinder body is of a bimetal structure, the metal of the inner layer of the drill rod cylinder body is an in-situ growth boride cermet material, and the in-situ growth boride cermet material comprises the following components in percentage by mass: 52.0% of Mo, 5.1% of B, 7.3% of Cr, 2.1% of Ni, 0.7% of VC (vanadium carbide) and the balance of Fe.
Further, the head of the drill rod is clad with a wear-resistant alloy with the thickness of 4-5 mm through plasma surfacing, the hardness of the wear-resistant alloy is HRC 55-56, and the wear-resistant alloy consists of the following elements in percentage by mass: 0.8% of C, 13.5% of Cr, 2.7% of Si, 13.2% of Fe, 8.5% of W, 3.5% of B and the balance of Ni.
Furthermore, the atomizing, spraying and dust catching mechanism comprises a plurality of flat fan-shaped nozzles which are symmetrically arranged or uniformly arranged in an annular mode at the end face of the drill rod cylinder body, and the outer wall of one end of each flat fan-shaped nozzle is provided with threads for being connected with threaded holes arranged on the end face of the drill rod cylinder body; and a hexagonal stud is arranged on the outer wall of the middle part of the flat fan-shaped nozzle.
Furthermore, be provided with consecutive nozzle pipe, transition pipe, nozzle mouth in the flat fan-shaped nozzle, wherein, the nozzle mouth is fan-shaped, is located flat fan-shaped nozzle's head, and the great one end of nozzle mouth bore is outwards, and the less one end of bore is connected with the transition pipe, and the transition pipe is hemispherical structure.
Furthermore, the opening angle of the nozzle opening is 15-50 degrees.
Further, the pneumatic loading mechanism provides low-frequency air pressure, and the low-frequency air pressure loading frequency is 0.5-2 times/second; the hydraulic loading mechanism provides high-frequency hydraulic pressure, and the high-frequency hydraulic loading frequency is loaded according to the low-frequency air pressure loading frequency integer of 2-8 times.
The dust-free rock breaking machine is provided with a connecting shaft for connecting with a quick-change coupler.
The dust-free rock breaking machine further comprises a peripheral auxiliary mechanism, the peripheral auxiliary mechanism comprises a connecting frame, a drill rod limiting pin and an oil cylinder connecting plate, all the parts are fixed through check bolts and nuts, the check structure is characterized in that the thread clearance of the nuts is reduced, and annular elastic clamps are arranged at the outer ends of the nuts.
The invention has the beneficial effects that: according to the Laval type gas-liquid double-power dust-free rock breaking machine tool, the pneumatic and hydraulic input ends of the Laval structure are designed, so that the speed and the load of primary loading and secondary loading are both increased to a certain extent, and the breaking efficiency are effectively improved. The design and application of the flat atomizing nozzle enable water to be atomized into very small fine droplets, effectively improve dust catching capacity and effect, and completely limit dust. The double-alloy cylinder body and the abrasion-resistant surfacing drill rod greatly prolong the service life of the rock breaking machine, improve the rock breaking efficiency, and reduce the looseness of peripheral structural connection through the locknut.
Drawings
FIG. 1 is a schematic cross-sectional structure view of a Laval type gas-liquid dual-power dust-free rock breaking machine of the present invention;
FIG. 2 is a schematic view of the present invention;
FIG. 3 is a schematic view of a flat fan atomizing nozzle according to the present invention.
Detailed Description
As shown in fig. 1 to 2, the laval type gas-liquid dual-power dust-free rock breaking machine of the present invention comprises a pneumatic loading mechanism 1, a hydraulic loading mechanism 2, a drill rod rock breaking mechanism 3, an atomizing and spraying dust catching mechanism 4, and a peripheral auxiliary mechanism 5, wherein:
the pneumatic loading mechanism 1 comprises a gas control loop 11, a cylinder 12, a gas piston 13 and a gas sealing assembly 14, wherein the gas piston 13 is positioned in the cylinder 12, the gas control loop 11 is communicated with the cylinder 12, and the gas sealing assembly 14 is arranged at the bottom of the cylinder 12; the cylinder 12 is of a Laval structure and is arranged in the pneumatic shell 10;
the hydraulic loading mechanism 2 comprises a hydraulic control circuit 21, a hydraulic oil cylinder 22, a hydraulic piston 23, an oil seal assembly 24 and a hydraulic energy storage chamber, wherein the hydraulic oil cylinder 22 is positioned below the cylinder 12, the hydraulic piston 23 is positioned in the hydraulic oil cylinder 22, the hydraulic control circuit 21 is communicated with the hydraulic oil cylinder 22, and the oil seal assembly 24 is positioned below the hydraulic oil cylinder 22; the hydraulic control circuit 21 is internally provided with a Laval structure hydraulic input pipeline 211; the hydraulic oil cylinder 22 is arranged in the hydraulic shell 20, and the upper end of the hydraulic shell 20 is connected with the lower end of the pneumatic shell 10;
the drill rod rock breaking mechanism 3 comprises a piston rod 31 and a drill rod 32 which are connected in sequence, wherein the piston rod 31 penetrates through the cylinder 12 and the oil cylinder 22 and is connected with the gas piston 13 and the hydraulic piston 23; a part of the drill rod 32 is positioned in the drill rod cylinder body 30, and the head part of the drill rod 32 extends out of the lower end of the drill rod cylinder body 30; the upper end of the drill rod cylinder body 30 is connected with the lower end of the hydraulic shell 20;
the atomizing, spraying and dust-catching mechanism 4 is positioned on the lower end surface of the drill rod cylinder body 30.
The peripheral auxiliary mechanism 5 comprises a connecting frame used for being connected with the quick-change coupler, a drill rod limiting pin and an oil cylinder connecting plate, all the parts are fixed by adopting check bolts and nuts, the check structural form is that the thread clearance of the nuts is reduced, and the outer ends of the nuts are provided with annular elastic clamps. The dust-free rock breaking machine is provided with a connecting shaft for connecting with the quick-change coupler.
The drill rod cylinder body 30 is of a bimetal structure, the metal of the inner layer of the drill rod cylinder body is an in-situ growth boride cermet material, and the in-situ growth boride cermet material comprises the following components in percentage by mass: 52.0% of Mo, 5.1% of B, 7.3% of Cr, 2.1% of Ni, 0.7% of VC (vanadium carbide) and the balance of Fe.
The head of the drill rod 32 is clad with wear-resistant alloy with the thickness of 4-5 mm through plasma surfacing, the hardness of the wear-resistant alloy is HRC 55-56, and the wear-resistant alloy consists of the following elements in percentage by mass: 0.8% of C, 13.5% of Cr, 2.7% of Si, 13.2% of Fe, 8.5% of W, 3.5% of B and the balance of Ni.
As shown in fig. 3, the atomizing, spraying and dust-catching mechanism 4 includes a plurality of flat fan-shaped nozzles 40 symmetrically or uniformly arranged in a ring shape on the end surface of the drill rod cylinder 30, and a thread 41 is provided on the outer wall of one end of the flat fan-shaped nozzles 40 for connecting with a threaded hole provided on the end surface of the drill rod cylinder 30; the outer wall of the middle part of the flat fan-shaped nozzle 40 is provided with a hexagonal stud 44, so that the flat fan-shaped nozzle can be conveniently connected with other machines. Be provided with consecutive nozzle pipe 45, transition pipe 43, nozzle opening 42 in the flat fan-shaped nozzle 40, wherein, nozzle opening 42 is fan-shaped, is located flat fan-shaped nozzle 40's head, and the great one end of nozzle opening 42 bore is outwards, and the less one end of bore is connected with transition pipe 43, and transition pipe 43 is the hemisphere structure. The opening angle of the nozzle opening 42 is 15 to 50 degrees, preferably 36 degrees. The flat fan-shaped nozzle 40 can atomize water into liquid drops of 0.5-5.0 mu m, and dust is captured by utilizing the maximum surface area principle of liquid water, so that broken raised dust is limited within a working face in time, the dust capturing efficiency is improved, the water consumption is greatly reduced, and flood disasters of the construction working face caused by spraying large amount of water for dust reduction are avoided.
The pneumatic loading mechanism 1 provides low-frequency air pressure, and the low-frequency air pressure loading frequency is 0.5-2 times/second; the hydraulic loading mechanism 2 provides high-frequency hydraulic pressure, and the high-frequency hydraulic loading frequency is loaded by 2-8 times according to the low-frequency air pressure loading frequency integer.
The working principle of the invention is as follows: the power gas with certain pressure passes through the Laval structure cylinder through the input port, the pressure and the speed of the gas are obviously improved, and the pneumatic piston is accelerated and driven at the frequency of 0.5-2 times/second; the hydraulic loading of certain pressure passes through a Laval structure hydraulic pipeline through an input port, the pressure and the speed of liquid are obviously improved, the liquid is loaded by 2-8 times of an air pressure loading frequency integer, the drill rod is loaded by 2-8 times of hydraulic loading in an air pressure loading period and is subjected to strong impact by simultaneous resonance of air pressure and hydraulic pressure for the first time, the drill rod is inserted deeply into a foundation, and in the air pressure loading period, the drill rod is loaded by 2-8 times of hydraulic pressure for secondary impact, so that secondary damage crushing is realized, and the working process is circulated in a reciprocating mode. The Laval structure is adopted for pneumatic and hydraulic input loading, and the small-section high-flow-rate loading process enables the loading speed to be higher and the impact force to be larger. In the rock breaking process, the flat atomizing nozzle works to atomize a small amount of water into liquid drops of 0.5-5.0 mu m, and the liquid drops are mixed with raised dust of rock breaking to achieve the effect of dust catching and dust falling.

Claims (5)

1. A Laval type gas-liquid double-power dust-free rock breaking machine is characterized in that: including broken rock mechanism (3), the atomizing spraying of pneumatic loading mechanism (1), hydraulic loading mechanism (2), drill rod and catch dirt mechanism (4), wherein:
the pneumatic loading mechanism (1) comprises a gas control loop (11), a cylinder (12), a gas piston (13) and a gas sealing assembly (14), wherein the gas piston (13) is positioned in the cylinder (12), the gas control loop (11) is communicated with the cylinder (12), and the gas sealing assembly (14) is arranged at the bottom of the cylinder (12); the air cylinder (12) is of a Laval structure and is arranged in the pneumatic shell (10);
the hydraulic loading mechanism (2) comprises a hydraulic control loop (21), a hydraulic oil cylinder (22), a hydraulic piston (23), an oil seal assembly (24) and a hydraulic energy storage chamber, the hydraulic oil cylinder (22) is positioned below the air cylinder (12), the hydraulic piston (23) is positioned in the hydraulic oil cylinder (22), the hydraulic control loop (21) is communicated with the hydraulic oil cylinder (22), and the oil seal assembly (24) is positioned below the hydraulic oil cylinder (22); the hydraulic control loop (21) is internally provided with a Laval structure hydraulic input pipeline (211); the hydraulic oil cylinder (22) is arranged in the hydraulic shell (20), and the upper end of the hydraulic shell (20) is connected with the lower end of the pneumatic shell (10);
the drill rod rock breaking mechanism (3) comprises a piston rod (31) and a drill rod (32) which are sequentially connected, wherein the piston rod (31) penetrates through the cylinder (12) and the hydraulic oil cylinder (22) and is connected with the gas piston (13) and the hydraulic piston (23); one part of the drill rod (32) is positioned in the drill rod cylinder body (30), and the head part of the drill rod (32) extends out of the lower end of the drill rod cylinder body (30); the upper end of the drill rod cylinder body (30) is connected with the lower end of the hydraulic shell (20);
the atomizing, spraying and dust-catching mechanism (4) is positioned on the lower end surface of the drill rod cylinder body (30);
the pneumatic loading mechanism (1) provides low-frequency air pressure, and the low-frequency air pressure loading frequency is 0.5-2 times/second; the hydraulic loading mechanism (2) provides high-frequency hydraulic pressure, and the high-frequency hydraulic loading frequency is loaded by 2-8 times according to the low-frequency air pressure loading frequency integer.
2. The laval-type gas-liquid hybrid dust-free rock breaking machine as claimed in claim 1, wherein: the drill rod cylinder body (30) is of a bimetal structure, the metal of the inner layer of the drill rod cylinder body is an in-situ growth boride cermet material, and the in-situ growth boride cermet material comprises the following components in percentage by mass: 52.0% of Mo, 5.1% of B, 7.3% of Cr, 2.1% of Ni, 0.7% of VC and the balance of Fe.
3. The laval-type gas-liquid hybrid dust-free rock breaking machine as claimed in claim 1, wherein: the drill rod (32) is characterized in that a wear-resistant alloy with the thickness of 4-5 mm is clad at the head of the drill rod through plasma surfacing, the hardness of the wear-resistant alloy is HRC 55-56, and the wear-resistant alloy consists of the following elements in percentage by mass: 0.8% of C, 13.5% of Cr, 2.7% of Si, 13.2% of Fe, 8.5% of W, 3.5% of B and the balance of Ni.
4. The laval-type gas-liquid hybrid dust-free rock breaking machine as claimed in claim 1, wherein: the dust-free rock breaking machine is provided with a connecting shaft for connecting with a quick-change coupler.
5. The laval-type gas-liquid hybrid dust-free rock breaking machine as claimed in claim 1, wherein: the drill rod locking mechanism further comprises a peripheral auxiliary mechanism (5), wherein the peripheral auxiliary mechanism (5) comprises a connecting frame, a drill rod limiting pin and an oil cylinder connecting plate, all the parts are fixed by using locking bolts and nuts, the locking structure is characterized in that the thread clearance of the nuts is reduced, and annular elastic clamps are arranged at the outer ends of the nuts.
CN202011310016.4A 2020-11-20 2020-11-20 Laval type gas-liquid double-power dust-free rock breaking machine Active CN112359906B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202011310016.4A CN112359906B (en) 2020-11-20 2020-11-20 Laval type gas-liquid double-power dust-free rock breaking machine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202011310016.4A CN112359906B (en) 2020-11-20 2020-11-20 Laval type gas-liquid double-power dust-free rock breaking machine

Publications (2)

Publication Number Publication Date
CN112359906A CN112359906A (en) 2021-02-12
CN112359906B true CN112359906B (en) 2022-04-12

Family

ID=74534196

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202011310016.4A Active CN112359906B (en) 2020-11-20 2020-11-20 Laval type gas-liquid double-power dust-free rock breaking machine

Country Status (1)

Country Link
CN (1) CN112359906B (en)

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2006055928A (en) * 2004-08-18 2006-03-02 Toyo Kuki Seisakusho:Kk Bracket for mounting breaker
CN102319596A (en) * 2011-09-20 2012-01-18 合肥科振实业发展有限公司 Fluid-fuel combined breaking hammer
CN102600928A (en) * 2012-02-29 2012-07-25 中国地质大学（北京） Inserted tooth hammer of crushing machine and preparation method thereof
CN111456618A (en) * 2020-04-10 2020-07-28 台州市木落自动化科技有限公司 Two-stage impact hydraulic breaking hammer
CN111468218A (en) * 2020-05-07 2020-07-31 南京航创特种机器人有限公司 Quartering hammer is used in mine
CN211285764U (en) * 2019-12-03 2020-08-18 向金健 Pneumatic breaking hammer

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2006055928A (en) * 2004-08-18 2006-03-02 Toyo Kuki Seisakusho:Kk Bracket for mounting breaker
CN102319596A (en) * 2011-09-20 2012-01-18 合肥科振实业发展有限公司 Fluid-fuel combined breaking hammer
CN102600928A (en) * 2012-02-29 2012-07-25 中国地质大学（北京） Inserted tooth hammer of crushing machine and preparation method thereof
CN211285764U (en) * 2019-12-03 2020-08-18 向金健 Pneumatic breaking hammer
CN111456618A (en) * 2020-04-10 2020-07-28 台州市木落自动化科技有限公司 Two-stage impact hydraulic breaking hammer
CN111468218A (en) * 2020-05-07 2020-07-31 南京航创特种机器人有限公司 Quartering hammer is used in mine

Also Published As

Publication number Publication date
CN112359906A (en) 2021-02-12

Similar Documents

Publication Publication Date Title
CN201108841Y (en) Anthracite coal bidirectional fine crasher
CN208390132U (en) A kind of antifriction alloy bar
CN112359906B (en) Laval type gas-liquid double-power dust-free rock breaking machine
CN105350909B (en) One kind energy-conservation cluster combination hammer
CN204017914U (en) A kind of hammer mill holder shank type tup part
CN111119726B (en) Annular cluster formula down-the-hole hammer
CN106111263B (en) A kind of novel tup for reversible hammer mill
CN217379055U (en) Air-beating type hydraulic breaking hammer based on Tesla valve
CN205761442U (en) A kind of novel tup for reversible hammer mill
CN102900355B (en) Quick-drill pneumatic hard rock drill
CN209934680U (en) Top hammer structure of composite high-strength cubic press
CN115419133A (en) Hydraulic breaking hammer capable of achieving idle striking function based on hydraulic hammer effect and damping holes
CN208878694U (en) A kind of diamond shape tup
CN207858738U (en) A kind of tup stripping attachment for fine crusher
CN209780748U (en) Frequency-adjustable resonance type hydraulic rock drill
CN208878695U (en) A kind of diamond shape tup
CN102649260A (en) Double-end impeller head
CN202655071U (en) Split type crushing hammer on shale crushing machine
CN206769855U (en) A kind of high pressure draught clears up aggregate chips formula rock drill
CN212225094U (en) Impact device
CN220247990U (en) Annular cutting type pneumatic impact drilling tool
CN2806487Y (en) Impact workpiece coupled type hydraulic tapping machine
CN2314846Y (en) Super fine dust-proof crusher
CN2205743Y (en) Composite vertical shaft impacting crusher
RU2325527C2 (en) Method for multi-stage arming, acceleration and impact and percussion device for implementation thereof when disintegrating rock

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
GR01 Patent grant
GR01 Patent grant