CN104532896A - Rotary hydraulic and pneumatic mixed impact breaking hammer - Google Patents
Rotary hydraulic and pneumatic mixed impact breaking hammer Download PDFInfo
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- CN104532896A CN104532896A CN201410802998.7A CN201410802998A CN104532896A CN 104532896 A CN104532896 A CN 104532896A CN 201410802998 A CN201410802998 A CN 201410802998A CN 104532896 A CN104532896 A CN 104532896A
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Abstract
The invention discloses a rotary hydraulic and pneumatic mixed impact breaking hammer. The rotary hydraulic and pneumatic mixed impact breaking hammer comprises an outer box, a drill rod, a drill rod reciprocating guide centering mechanism, a piston reciprocating mechanism and a sealed nitrogen volume change mechanism, wherein the front end of the drill rod extends out of the outer box; the drill rod reciprocating guide centering mechanism is arranged in the outer box; the drill rod is coaxially positioned with the piston reciprocating mechanism through the drill rod reciprocating guide centering mechanism; the piston reciprocating mechanism and the sealed nitrogen volume change mechanism are connected; the drill rod is provided with a drill rod rotary mechanism; the drill rod rotary mechanism comprises a hydraulic motor; one end of an output shaft of the hydraulic motor is connected with the rear end of the drill rod through a coupler; the other end of the output shaft of the hydraulic motor is connected with an impact shaft bearing the piston action in the piston reciprocating mechanism; a lower oil cavity and an upper oil cavity which are used for controlling the reciprocating limiting position of the drill rod are arranged on the two sides of the hydraulic motor and are sealed; the hydraulic motor is provided with an oil inlet pipe and an oil outlet pipe. The drill rod has the rotary function, not only axial impact but also radial centrifugal force are generated while impact of the drill rod is achieved, the impact efficiency is higher, and the breaking function is powerful.
Description
Technical field
The present invention relates to a kind of engineering machinery, specifically a kind of rotary liquid gas pressure mixing impact grinding hammer for object fragmentation.
Background technology
Along with the quickening of the engineering constructions such as road, bridge, high ferro, removing when often needing 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 bulk or overall hard objects is become fast to move fritter object, and small breaking hammer can adopt hand-held, and (as excavator) or special-purpose machinery carry out work to big-and-middle-sized will being arranged on engineering truck.The operating efficiency of quartering hammer is kinetic energy and the frequency of drill steel impacted object, and kinetic energy more easily destroys object more greatly, make by alluvium rapid crack propagation be separated.Its drill steel of traditional quartering hammer can only make straight line shock, and object cracking is main hits the impact endurance test shock produced by drill steel, it is made a concerted effort for the axial force along the axis direction of drill steel.If can produce a radial load simultaneously, after more easily making object ftracture, quick separating forms fritter object.
Summary of the invention
In order to overcome prior art Problems existing, improve quartering hammer operating efficiency, the object of this invention is 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 when drill steel impacts and produce radial centrifugal force again, target efficiency is higher, and crushing function is powerful.
The object of the invention is to be achieved through the following technical solutions:
A kind of rotary liquid gas pressure mixing impact grinding hammer, comprise outer case, the drill steel of outer case is stretched out in front end, be arranged on the reciprocal pilot centering mechanism of drill steel in outer case, piston reciprocating mechanism and airtight nitrogen volume varying mechanism, drill steel is by the reciprocal pilot centering mechanism of drill steel and piston reciprocating mechanism coaxial positioning, 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 comprises hydraulic motor, one end of the output shaft of hydraulic motor is connected with the rear end of drill steel by shaft coupling, the other end is connected with the impact groove of the piston action born in piston reciprocating mechanism, be provided with the airtight lower oil cavitie and upper oil cavitie that control 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, for avoiding motor, with axial, impact occurs during hydraulic motor moves back and forth with drill steel, rupture when preventing drill steel from working, be provided with limiting plate in the both sides, front and back of hydraulic motor, limiting plate adopts elasticity absorbing metal sheet roof covering.Be provided with guard shield in the face, rear and front end of hydraulic motor, guard shield is energy-absorbing rubber simultaneously.Positioning sleeve is provided with outside hydraulic motor.
The reciprocal pilot centering mechanism of drill steel is included in the fairlead forming rectilinear motion after drill steel impacts, and drill steel and fairlead assembly relation are H9/d9 matched in clearance.Oil inlet pipe and flowline are helix tube, meet motor and to stretch requirement with the pipeline rotating drill steel linear reciprocating motion.
The present invention increases drill steel rotating mechanism on traditional quartering hammer basis, proposes the locating mounting method of rotation motor, motor output shaft is connected with drill steel and ensures rotating coaxial precision methods and the reciprocating guiding of drill steel and localization method.The rotary motion that the present invention adopts quantitatively or variable hydraulic motor realizes in drill steel ballistic motion, the working connection of power resources in hydraulic system of motor.The type of motor selects that radial dimension is little, power output reaches, the axial-piston hydraulic motor of good impact resistance as far as possible.
The radial location of hydraulic motor of the present invention with outer surface be installed adopt matched in clearance with motor positioning sleeve endoporus, and motor positioning sleeve inner chamber is divided into vertically two airtight hydraulic cavities, for motor reserves stroke space with drill steel reciprocating motion; There is unexpected state when hydraulic motor is moved back and forth in company with drill steel, for avoiding colliding with motor positioning sleeve, adopting resilient shock absorbing material to be protected at motor positioning chamber and motor external surface.
In the present invention, the rotary motion of drill steel is connected with motor output shaft by shaft coupling, realizes rigid water hammer and rotates.For ensureing the axiality of drill steel and motor output shaft gyration, drill steel fairlead and drill steel external diameter adopt matched in clearance, will adopt the technique that drill steel fairlead endoporus and motor positioning sleeve endoporus once mounting machine during fabrication.
The present invention uses its strike end of drill steel to be positive rectangular pyramid; Motor turnover oil pipe adopts the spirality plastic pipe that can stretch; Motor positioning sleeve and drill steel fairlead and quartering hammer casing are fixedly connected.
Drill steel of the present invention has spinfunction, and realize producing axial impact force when drill steel impacts and produce radial centrifugal force again, target efficiency is higher, and crushing function is powerful.Compact conformation of the present invention is simple, easy for installation, can meet various construction site requirement.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention;
Fig. 2 is the structural representation of drill steel rotating mechanism in the present invention;
Fig. 3 is motor location and drill steel guiding schematic diagram in the present invention.
In figure: 1-drill steel, 2-fairlead, 3-shaft coupling, 4-limiting plate, 5-guard shield, 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, the airtight nitrogen volume varying mechanism of 23-, 24-drill steel rotating mechanism.
Detailed description of the invention
A kind of rotary liquid gas pressure mixing impact grinding hammer, comprise outer case 20, the drill steel 1 of outer case is stretched out in front end, be arranged on the reciprocal pilot centering mechanism 21 of drill steel in outer case, piston reciprocating mechanism 22 and airtight nitrogen volume varying mechanism 23, drill steel is by the reciprocal pilot centering mechanism of drill steel and piston reciprocating mechanism coaxial positioning, 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 comprises hydraulic motor 7, one end of the output shaft 18 of hydraulic motor is connected with the rear end of drill steel by shaft coupling 3, the other end is connected with the impact groove 16 of the piston action born in piston reciprocating mechanism, be provided with the airtight lower oil cavitie and upper oil cavitie that control 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 helix tube, meet motor and to stretch requirement with the pipeline rotating drill steel linear reciprocating motion.
Motor makes output shaft 18 produce revolution under hydraulic coupling controls, and drives drill steel synchronous revolving by shaft coupling 3.Enter hydraulic oil promotion piston by oil suction chamber in liquid gas pressure mixed organization hydraulic cylinder during drill steel feeding to move to drill steel direction, the piston other end simultaneously inserting nitrogen chamber 12 promotes piston by the instantaneous explosive force that high pressure nitrogen volume expansion produces and moves to drill steel direction, the feed speed of accelerating piston, clash into impact groove 16 on the upside of motor at the effect lower piston of fluid power and nitrogen exploision power with huge kinetic energy, make drill steel 1 produce feeding impulsive motion.When after the bounce-back of drill steel impacted object, 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 prepare for blast next time.
Because motor output shaft is synchronized with the movement with drill steel at work; and be frequently subject to the strike of piston; for ensureing the motor normal work and use life-span; motor is protected; method is: motor spindle revolution adopts special static pressure supporting mechanism to improve the shock-resistant rigidity of motor, outside motor and inside positioning chamber, install energy-absorption shock-damper.For avoiding motor, with axial, impact occurs during hydraulic motor moves back and forth with drill steel, rupture when preventing drill steel from working, be provided with limiting plate 4 in the both sides, front and back of hydraulic motor, limiting plate adopts elasticity absorbing metal sheet roof covering.Be provided with guard shield 5 in the face, rear and front end of hydraulic motor, guard shield is energy-absorbing rubber simultaneously.Positioning sleeve 6 is provided with outside hydraulic motor.
The hydraulic control system of rotary liquid gas pressure quartering hammer is substantially identical with common quartering hammer, the different hydraulic control device 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 (4)
1. a rotary liquid gas pressure mixing impact grinding hammer, comprise outer case (20), the drill steel (1) of outer case (20) is stretched out in front end, be arranged on the reciprocal pilot centering mechanism (21) of drill steel in outer case (20), piston reciprocating mechanism (22) and airtight nitrogen volume varying mechanism (23), drill steel (1) is by the reciprocal pilot centering mechanism (21) of drill steel and piston reciprocating mechanism (22) coaxial positioning, 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) comprises hydraulic motor (7), one end of the output shaft (18) of hydraulic motor (7) is connected 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, be provided with the airtight lower oil cavitie (17) and upper oil cavitie (13) that control 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).
2. rotary liquid gas pressure mixing impact grinding hammer according to claim 1; it is characterized in that: be provided with limiting plate (4) in the both sides, front and back of hydraulic motor (7); be provided with guard shield (5) in the face, rear and front end of hydraulic motor (7), be provided with positioning sleeve (6) in hydraulic motor (7) outside.
3. rotary liquid gas pressure mixing impact grinding hammer according to claim 1, it is characterized in that: the reciprocal pilot centering mechanism (21) of drill steel is included in the fairlead (2) forming rectilinear motion after drill steel (1) impacts, and drill steel (1) and fairlead (2) assembly relation are H9/d9 matched in clearance.
4. rotary liquid gas pressure mixing impact grinding hammer according to claim 1, is characterized in that: oil inlet pipe (15) and flowline (8) are helix tube.
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 |
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| 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 true CN104532896A (en) | 2015-04-22 |
| CN104532896B CN104532896B (en) | 2016-09-21 |
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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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Cited By (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 |
| CN106049247A (en) * | 2016-05-31 | 2016-10-26 | 福州麦辽自动化设备有限公司 | Mechanical 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 |
| CN108625770A (en) * | 2018-06-06 | 2018-10-09 | 福建亿钻机械有限公司 | A kind of the crushing power head and its application method of rotatable impact |
| 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 |
| CN114934558A (en) * | 2022-04-01 | 2022-08-23 | 徐州巴特工程机械股份有限公司 | Full hydraulic rotary-impact crusher |
| CN115305985A (en) * | 2022-07-22 | 2022-11-08 | 三一重机有限公司 | Breaking hammer operation control method and system and operation machine |
-
2014
- 2014-12-23 CN CN201410802998.7A patent/CN104532896B/en active Active
Cited By (10)
| 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 |
| CN106049247A (en) * | 2016-05-31 | 2016-10-26 | 福州麦辽自动化设备有限公司 | Mechanical drill rod triggering breaking hammer |
| CN106049247B (en) * | 2016-05-31 | 2018-01-23 | 泰州市光明电子材料有限公司 | A kind of mechanical drill steel triggering quartering hammer |
| CN108457664A (en) * | 2018-04-12 | 2018-08-28 | 南京工业职业技术学院 | Impact cutterhead and heading end |
| CN108625770A (en) * | 2018-06-06 | 2018-10-09 | 福建亿钻机械有限公司 | A kind of the crushing power head and its application method of rotatable impact |
| 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 |
| 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 |
| CN114934558A (en) * | 2022-04-01 | 2022-08-23 | 徐州巴特工程机械股份有限公司 | Full hydraulic rotary-impact crusher |
| CN115305985A (en) * | 2022-07-22 | 2022-11-08 | 三一重机有限公司 | Breaking hammer operation control method and system and operation 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 |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104532896B (en) | 2016-09-21 |
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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 |