CN104532896B - A kind of rotary liquid gas pressure mixing impact grinding hammer - Google Patents
A kind of rotary liquid gas pressure mixing impact grinding hammer Download PDFInfo
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- CN104532896B CN104532896B CN201410802998.7A CN201410802998A CN104532896B CN 104532896 B CN104532896 B CN 104532896B CN 201410802998 A CN201410802998 A CN 201410802998A CN 104532896 B CN104532896 B CN 104532896B
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Abstract
The invention discloses a kind of rotary liquid gas pressure mixing impact grinding hammer, including outer case, the drill steel of outer case is stretched out in front end, the drill steel reciprocal pilot centering mechanism being arranged in outer case, piston reciprocating mechanism and airtight nitrogen volume varying mechanism, drill steel is coaxially positioned with piston reciprocating mechanism by drill steel reciprocal pilot centering mechanism, piston reciprocating mechanism is connected with airtight nitrogen volume varying mechanism, drill steel is provided with drill steel rotating mechanism, this drill steel rotating mechanism includes hydraulic motor, one end of the output shaft of hydraulic motor is coupled with the rear end of drill steel by shaft coupling, the other end is connected with the impact groove of the piston effect born in piston reciprocating mechanism；It is provided with airtight lower oil cavitie and the upper oil cavitie controlling the reciprocal extreme position of drill steel in hydraulic motor both sides, hydraulic motor is provided with oil inlet pipe and flowline.The drill steel of the present invention has spinfunction, it is achieved producing axial impact force during drill steel impact and produce again radial centrifugal force, target efficiency is higher, and crushing function is powerful.
Description
Technical field
The present invention relates to a kind of engineering machinery, a kind of rotary liquid gas pressure mixing impact grinding hammer broken for object.
Background technology
Along with the quickening of the engineering constructions such as road, bridge, high ferro, removing when generally requiring demolition of buildings, HIGHWAY MAINTENANCE in engineering in cement and mix asphalt road surface, high ferro construction cuts into a mountain burrows, and quartering hammer is a kind of effective removal tool.The function of quartering hammer is to be quickly turned to move fritter object by bulk or overall hard objects, and small breaking hammer can use hand-held, and big-and-middle-sized engineering truck to be arranged on is operated on (such as excavator) or special-purpose machinery.The work efficiency of quartering hammer is kinetic energy and the frequency of drill steel impacted object, and kinetic energy is the biggest more is easily destroyed object, makes by alluvium rapid crack propagation and separation.Its drill steel of traditional quartering hammer can only make straight line shock, and object cracking hits the impact endurance test shock produced mainly by drill steel, its axial force for the axis direction along drill steel of making a concerted effort.If a radial force can be produced simultaneously, after will being easier to make object cracking, sharp separation forms fritter object.
Summary of the invention
For the problem overcoming prior art to exist, improve quartering hammer work efficiency, it is an object of the invention to provide a kind of rotary liquid gas pressure mixing impact grinding hammer, the drill steel of this quartering hammer has spinfunction, realize producing axial impact force during drill steel impact and produce again radial centrifugal force, target efficiency is higher, and crushing function is powerful.
It is an object of the invention to be achieved through the following technical solutions:
A kind of rotary liquid gas pressure mixing impact grinding hammer, including outer case, the drill steel of outer case is stretched out in front end, the drill steel reciprocal pilot centering mechanism being arranged in outer case, piston reciprocating mechanism and airtight nitrogen volume varying mechanism, drill steel is coaxially positioned with piston reciprocating mechanism by drill steel reciprocal pilot centering mechanism, piston reciprocating mechanism is connected with airtight nitrogen volume varying mechanism, it is characterized in that: on drill steel, be provided with drill steel rotating mechanism, this drill steel rotating mechanism includes hydraulic motor, one end of the output shaft of hydraulic motor is coupled with the rear end of drill steel by shaft coupling, the other end is connected with the impact groove of the piston effect born in piston reciprocating mechanism；It is provided with airtight lower oil cavitie and the upper oil cavitie controlling the reciprocal extreme position of drill steel in hydraulic motor both sides, hydraulic motor is provided with oil inlet pipe and flowline.
In the present invention, hydraulic motor move back and forth with drill steel in for avoiding motor and impact axially occurring, prevent drill steel from rupturing when work, before and after hydraulic motor, both sides are provided with limiting plate, limiting plate employing elasticity absorbing sheet metal.Before and after hydraulic motor, both ends of the surface are provided with protection board simultaneously, and protection board is energy-absorbing rubber.Positioning sleeve it is provided with outside hydraulic motor.
Drill steel reciprocal pilot centering mechanism forms the fairlead of linear motion after being included in drill steel impact, drill steel and fairlead assembly relation are H9/d9 matched in clearance.Oil inlet pipe and flowline are serpentine pipe, meet motor and stretch requirement with the pipeline rotating drill steel linear reciprocating motion.
The present invention increases drill steel rotating mechanism on the basis of tradition quartering hammer, proposes the locating mounting method of rotation motor, motor output shaft and is connected guarantee rotating coaxial precision methods and the reciprocating guiding of drill steel and localization method with drill steel.The present invention uses quantitatively or variable hydraulic motor realizes the rotary motion in drill steel ballistic movement, the power resources of motor working connection in hydraulic system.Radial dimension is little, output reaches, the axial-piston hydraulic motor of good impact resistance for the selection as far as possible of the type of motor.
The radial direction of hydraulic motor of the present invention positions and installs outer surface and motor positioning sleeve endoporus employing matched in clearance, and motor positioning sleeve inner chamber is divided into two airtight hydraulic cavities vertically, reserves stroke space for motor with drill steel reciprocating motion；It is unexpected that state occur when hydraulic motor is moved back and forth in company with drill steel, for avoiding colliding with motor positioning sleeve, uses resilient shock absorbing material to be protected at motor positioning chamber and motor outer surface.
In the present invention, the rotary motion of drill steel is coupled with motor output shaft by shaft coupling, it is achieved rigid water hammer rotates.For ensureing the axiality of drill steel and motor output shaft gyration, drill steel fairlead uses matched in clearance, the technique that drill steel fairlead endoporus to be used machines with motor positioning sleeve endoporus once mounting with drill steel external diameter.
The present invention uses its strike end of drill steel to be positive rectangular pyramid；Motor turnover oil pipe uses the spiral type plastic pipe that can stretch；Motor positioning sleeve and drill steel fairlead are fixedly connected with quartering hammer casing.
Drill steel of the present invention has spinfunction, it is achieved producing axial impact force during drill steel impact and produce again radial centrifugal force, target efficiency is higher, and crushing function is powerful.Present configuration is compact simple, easy for installation, can meet various construction site requirement.
Accompanying drawing explanation
Fig. 1 is the structural representation of the present invention；
Fig. 2 is the structural representation of drill steel rotating mechanism in the present invention；
Fig. 3 is that in the present invention, motor location and drill steel guide schematic diagram.
In figure: 1-drill steel, 2-fairlead, 3-shaft coupling, 4-limiting plate, 5-protection board, 6-positioning sleeve, 7-hydraulic motor, 8-flowline, 9-adjust cage plate, 10-hydraulic cylinder, 11-piston, 12-nitrogen chamber, 13-upper oil cavitie, 14-accumulator, 15-oil inlet pipe, 16-impact groove, 17-lower oil cavitie, 18 output shafts, 20 outer case, 21-drill steel reciprocal pilot centering mechanism, 22-piston reciprocating mechanism, 23-airtight nitrogen volume varying mechanism, 24-drill steel rotating mechanism.
Detailed description of the invention
A kind of rotary liquid gas pressure mixing impact grinding hammer, including outer case 20, the drill steel 1 of outer case is stretched out in front end, the drill steel reciprocal pilot centering mechanism 21 being arranged in outer case, piston reciprocating mechanism 22 and airtight nitrogen volume varying mechanism 23, drill steel is coaxially positioned with piston reciprocating mechanism by drill steel reciprocal pilot centering mechanism, piston reciprocating mechanism is connected with airtight nitrogen volume varying mechanism, drill steel is provided with drill steel rotating mechanism 24, this drill steel rotating mechanism includes hydraulic motor 7, one end of the output shaft 18 of hydraulic motor is coupled with the rear end of drill steel by shaft coupling 3, the other end is connected with the impact groove 16 of the piston effect born in piston reciprocating mechanism；It is provided with airtight lower oil cavitie and the upper oil cavitie controlling the reciprocal extreme position of drill steel in hydraulic motor both sides, hydraulic motor is provided with oil inlet pipe and flowline.
Wherein drill steel hits end and makes positive rectangular pyramid.Drill steel and fairlead assembly relation are H9/d9 matched in clearance.Oil inlet pipe and flowline are serpentine pipe, meet motor and stretch requirement with the pipeline rotating drill steel linear reciprocating motion.
Motor makes output shaft 18 produce revolution under hydraulic coupling control, and drives drill steel synchronous revolving by shaft coupling 3.Entering hydraulic oil by oil suction chamber in liquid gas pressure mixed organization hydraulic cylinder during drill steel feeding promotes piston to move to drill steel direction, the piston other end being inserted simultaneously into nitrogen chamber 12 is promoted piston to move to drill steel direction by the instantaneous explosive force that high pressure nitrogen volumetric expansion produces, the feed speed of accelerating piston, effect lower piston in fluid power and nitrogen exploision power clashes into the impact groove 16 on the upside of motor with huge kinetic energy, makes drill steel 1 produce feeding impulsive motion.After drill steel impacted object rebounds, pressure oil is injected the lower oil cavitie 17 below motor by hydraulic system, makes motor continue to return back to next time by the position of piston slap together with drill steel；Piston is after shock, and cylinder hydraulic control system makes piston rollback, and piston enters nitrogen chamber and makes its smaller volume, does pressure reservoir for blast next time and prepares.
Owing to motor output shaft is synchronized with the movement with drill steel at work; and frequently hit by piston; for ensureing the motor normal work and use life-span; motor is protected; method is: motor spindle revolution uses special static pressure supporting mechanism to improve the impact resistance rigidity of motor, installs energy-absorption shock-damper outside motor and inside positioning chamber.Hydraulic motor move back and forth with drill steel in for avoiding motor and impact axially occurring, prevent drill steel from rupturing when work, before and after hydraulic motor, both sides are provided with limiting plate 4, limiting plate employing elasticity absorbing sheet metal.Before and after hydraulic motor, both ends of the surface are provided with protection board 5 simultaneously, and protection board is energy-absorbing rubber.Positioning sleeve 6 it is provided with outside hydraulic motor.
The hydraulic control system of rotary liquid gas pressure quartering hammer is essentially identical with common quartering hammer, the different hydraulic control devices being the increase in motor.Use and identical with common quartering hammer with the method that other engineering machinery connects.Its spinfunction can close the hydraulic system of motor as required, and motor stops the rotation output, and drill steel stops the rotation motion.
Claims (2)
- null1. a rotary liquid gas pressure mixing impact grinding hammer，Including outer case (20)、The drill steel (1) of outer case (20) is stretched out in front end、The drill steel reciprocal pilot centering mechanism (21) being arranged in outer case (20)、Piston reciprocating mechanism (22) and airtight nitrogen volume varying mechanism (23)，Drill steel (1) is coaxially positioned with piston reciprocating mechanism (22) by drill steel reciprocal pilot centering mechanism (21)，Piston reciprocating mechanism (22) is connected with airtight nitrogen volume varying mechanism (23)，It is characterized in that: on drill steel (1), be provided with drill steel rotating mechanism (24)，This drill steel rotating mechanism (24) includes hydraulic motor (7)，One end of the output shaft (18) of hydraulic motor (7) is coupled with the rear end of drill steel (1) by shaft coupling (3)，The impact groove (16) that the other end acts on the piston (11) born in piston reciprocating mechanism (22) is connected；It is provided with airtight lower oil cavitie (17) and the upper oil cavitie (13) controlling the reciprocal extreme position of drill steel (1) in hydraulic motor (7) both sides, hydraulic motor (7) is provided with oil inlet pipe (15) and flowline (8)；Before and after hydraulic motor (7), both sides are provided with limiting plate (4), and before and after hydraulic motor (7), both ends of the surface are provided with protection board (5), are provided with positioning sleeve (6) in hydraulic motor (7) outside；Drill steel reciprocal pilot centering mechanism (21) forms the fairlead (2) of linear motion after being included in drill steel (1) impact, drill steel (1) and fairlead (2) assembly relation are H9/d9 matched in clearance.
- Rotary liquid gas pressure the most according to claim 1 mixing impact grinding hammer, it is characterised in that: oil inlet pipe (15) and flowline (8) they are serpentine pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410802998.7A CN104532896B (en) | 2014-12-23 | 2014-12-23 | A kind of rotary liquid gas pressure mixing impact grinding hammer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410802998.7A CN104532896B (en) | 2014-12-23 | 2014-12-23 | A kind of rotary liquid gas pressure mixing impact grinding hammer |
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| Publication Number | Publication Date |
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| CN104532896A CN104532896A (en) | 2015-04-22 |
| CN104532896B true CN104532896B (en) | 2016-09-21 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201410802998.7A Active CN104532896B (en) | 2014-12-23 | 2014-12-23 | A kind of rotary liquid gas pressure mixing impact grinding hammer |
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Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104849157A (en) * | 2015-05-22 | 2015-08-19 | 中国矿业大学 | Continuous impact crushing test device |
| CN108342970B (en) * | 2016-05-31 | 2020-06-16 | 台州贝力特机械有限公司 | Drill rod triggering breaking hammer |
| CN108457664A (en) * | 2018-04-12 | 2018-08-28 | 南京工业职业技术学院 | Impact cutterhead and heading end |
| CN108625770B (en) * | 2018-06-06 | 2024-03-22 | 福建亿钻机械有限公司 | Rotatable impact crushing power head and application method thereof |
| CN114934558B (en) * | 2022-04-01 | 2023-06-09 | 徐州巴特工程机械股份有限公司 | Full hydraulic rotary impact crusher |
| CN114622615A (en) * | 2022-04-01 | 2022-06-14 | 徐州巴特工程机械股份有限公司 | Impact-rotary type crushing machine |
| CN115305985B (en) * | 2022-07-22 | 2023-10-31 | 三一重机有限公司 | Breaking hammer operation control method and system and operation machine |
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2014
- 2014-12-23 CN CN201410802998.7A patent/CN104532896B/en active Active
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| CN104532896A (en) | 2015-04-22 |
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Effective date of registration: 20201208 Address after: Jingwu Road, economic development zone, Quanjiao County, Chuzhou City, Anhui Province Patentee after: Anhui Tongtong Pipe Industry Co., Ltd Address before: 210016 Jiangsu Province, Nanjing Xianlin University City, Yang Shan Road No. 1 Patentee before: NANJING INSTITUTE OF INDUSTRY TECHNOLOGY |
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