CN104532897A - Self-adaptive intelligent hydraulic and pneumatic impact breaking hammer - Google Patents
Self-adaptive intelligent hydraulic and pneumatic impact breaking hammer Download PDFInfo
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- CN104532897A CN104532897A CN201410803153.XA CN201410803153A CN104532897A CN 104532897 A CN104532897 A CN 104532897A CN 201410803153 A CN201410803153 A CN 201410803153A CN 104532897 A CN104532897 A CN 104532897A
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Abstract
The invention discloses a self-adaptive intelligent hydraulic and pneumatic impact breaking hammer. The self-adaptive intelligent hydraulic and pneumatic impact breaking hammer comprises a drill rod, a drill rod reciprocating guiding centering mechanism, a piston reciprocating mechanism, an airtight nitrogen volume changing mechanism, an optical grating position sensor, an optical grating signal processing device and a servo driving system. The optical grating position sensor is composed of a movable ruler and two fixed rulers, the movable ruler is installed on the drill rod and reciprocates synchronously along with the drill rod, the two fixed rulers are fixed to a guiding sleeve of the drill rod reciprocating guiding centering mechanism in the feeding direction of the drill rod, the fixed ruler A is located above the fixed ruler B, the fixed ruler A is used for detecting the time of passing through a detecting point of the fixed ruler A of the movable ruler in feeding and bouncing, and controlling the hitting speed and frequency of the drill rod, and a detecting point of the fixed ruler B is used for detecting the feeding limit position of the drill rod. The optical grating position sensor is connected with the optical grating signal processing device. The optical grating signal processing device is connected with the servo driving system which enables the drill rod to change the frequency and speed of hitting an object in a self-adaptive mode according to the hardness of the hit object. According to the self-adaptive intelligent hydraulic and pneumatic impact breaking hammer, the tool use efficiency is improved.
Description
Technical field
The present invention relates to a kind of intelligent engineering machinery, specifically a kind of self-adapting intelligent liquid gas pressure impact grinding hammer.The quartering hammer that certain adaptive ability is impacted, can export different blow energies and frequency according to the hardness of object to be broken.
Background technology
The function of quartering hammer bulk or overall hard objects is become fast to move fritter object.Road, bridge, high ferro etc. construction are the Foundation Designs of nation-building, often need in engineering construction to remove reinforced concrete construction thing, need to remove original cement and mix asphalt road surface during speedway maintenance, will meet mountain in high ferro construction to cut into a mountain, meet river bridge formation, quartering hammer is a kind of requisite construction tool.Quartering hammer is generally arranged on engineering truck and (as excavator) or special-purpose machinery carries out work.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.But less energy and lower frequency can be used for relatively soft object, and hard object (as hard rock) needs the beating frequency of larger blow energy and Geng Gao.Traditional quartering hammer striking speed and the change of frequency must pass through manual operation, empirical judgement can only be carried out by external inspection and percussive sounds by the hardness of hitting object, when running into one piece of hard object, often just can select applicable blow speed and frequency through judgement, manual operation several times several times, cause the waste of inefficiency and energy.
Summary of the invention
In order to enable quartering hammer according to being hit stroke speed and the frequency of thing hardness self-adaptative adjustment piston, the invention provides a kind of self-adapting intelligent liquid gas pressure impact grinding hammer, this quartering hammer is with sensing detection device and hydraulic servo driving system, the impact kinetic energy and the frequency that realize piston slap drill steel change with by the firmness change of strike thing, thus improve the service efficiency of instrument, reduce operating personnel's work load and labour intensity.
The object of the invention is to be achieved through the following technical solutions:
A kind of self-adapting intelligent liquid gas pressure impact grinding hammer, comprise drill steel, drill steel reciprocal pilot centering mechanism, 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: this quartering hammer is provided with stop position sensor, grating signal treating apparatus and servo drive system, grating sensor is made up of a dynamic chi and two scales, and dynamic chi to be arranged on drill steel and to move with drill steel synchronous reciprocating; Two scales are fixed on along drill steel direction of feed on the fairlead of the reciprocal pilot centering mechanism of drill steel, wherein scale A chi is upper, scale B chi under, scale A chi detects dynamic chi feeding and bounce-back through the time of scale A test point, controls blow speed and the frequency of drill steel; On scale B chi, test point controls the extreme position of drill steel feeding; Stop position sensor is connected with grating signal treating apparatus, and grating signal treating apparatus is connected with the servo drive system making drill steel according to the frequency and speed of being hit object by the hardness adaptively changing hitting object.
In the present invention, servo drive system is connected with the master cylinder in piston reciprocating mechanism and auxiliary cylinder, and changes working flow and the pressure of master cylinder and auxiliary cylinder.
The present invention improves on the basis of traditional quartering hammer mechanism, increases stop position sensor, grating signal treating apparatus and servo drive system.On drill steel fairlead install two grating scales (A and B), B under, A is upper.Scale B is the maximum supplying position allowing drill steel, may produce sky beat phenomenon when dynamic chi is fed into this position, and system stops drill steel to continue feeding by oil pressure damping and starts to return; Scale A is used for recording dynamic chi feeding and hits object and rebounded through the time needed for scale A, it is harder that time shorter proof is hit thing, now automatically can be strengthened blow speed and the beating frequency of drill steel next time by control system, reach speed and the best requirement of frequency of drill steel impact object.
The main hydraulic cylinder (17) at impact piston place and the working flow of drill steel rollback auxiliary hydraulic cylinder (19) and pressure are all controlled by servo drive system.Main hydraulic cylinder changes flow and pressure under variable pump, servo flow speed control valve and servo pressure valve control, thus changes speed and the frequency of piston impact drill steel; By the feeding time of the accurate commanded piston of servo reversing valve, prevent piston sky to drill a blasting hole bar; Auxiliary hydraulic cylinder is produced rollback and moves to the continuation feeding of oil-feed prevention drill steel in cylinder the position that next piston feeding can clash into by servo reversing valve when drill steel may empty be beaten in time.Also piston sky can be avoided to play phenomenon generation by drill steel sky namely can be avoided to beat to the SERVO CONTROL of main hydraulic cylinder and auxiliary hydraulic cylinder.
The present invention is with sensing detection device and hydraulic servo driving system, and the impact kinetic energy and the frequency that realize piston slap drill steel change with by the firmness change of strike thing, thus improve the service efficiency of instrument, reduce operating personnel's work load and labour intensity.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention;
Fig. 2 is grating signal treating apparatus course of work block diagram in the present invention;
Fig. 3 is servo drive system schematic diagram in the present invention.
In figure: 1-drill steel, the reciprocal pilot centering mechanism of 2-drill steel, 3-piston reciprocating mechanism, the airtight nitrogen volume varying mechanism of 4-, 5-stop position sensor, 6-grating signal treating apparatus, 17-main hydraulic cylinder, 18-movable limit block, 19-drill steel rollback auxiliary hydraulic cylinder, 21-fairlead, 27-piston, 51-moves chi, 52-scale A, 53-scale B, 7-servo drive system, 71-hydraulic pump, 72-one way valve, 73-three-position four-way electromagnetic directional valve, 74-pilot operated compound relief valve, 75-bi-bit bi-pass solenoid operated directional valve, 76-direct leading type overflow valve, 77-3-position 4-way hand-operated direction valve, 78-overflow valve (counterbalance valve), 79-flow speed control valve, 80-overflow valve, 81-3 position-5 way servo, 82-bi-bit bi-pass solenoid operated directional valve, 83-overflow valve, 84-flow speed control valve, 85-pressure switch, 86-pressure meter, 87-accumulator, 88-one way valve, 89 one way valves, 90-bis-position switching valve, 91-electrichydraulic control two position switching valve.
Detailed description of the invention
A kind of self-adapting intelligent liquid gas pressure impact grinding hammer, see Fig. 1, comprise drill steel 1, drill steel reciprocal pilot centering mechanism 2, piston reciprocating mechanism 3, airtight nitrogen volume varying mechanism 4, stop position sensor 5, grating signal treating apparatus 6 and servo drive system 7.Drill steel is by the reciprocal pilot centering mechanism of drill steel and piston reciprocating mechanism coaxial positioning, and piston reciprocating mechanism is connected with airtight nitrogen volume varying mechanism.Grating sensor is made up of a dynamic chi 51 and two scales (A and B), and dynamic chi to be arranged on drill steel and to move with drill steel synchronous reciprocating; Two scales are fixed on along drill steel direction of feed on the fairlead 21 of the reciprocal pilot centering mechanism of drill steel, wherein scale A chi is upper, scale B chi under, scale A chi detects dynamic chi feeding and bounce-back through the time of scale A test point, controls blow speed and the frequency of drill steel; On scale B chi, test point controls the extreme position of drill steel feeding; Stop position sensor is connected with grating signal treating apparatus, and grating signal treating apparatus is connected with the servo drive system making drill steel according to the frequency and speed of being hit object by the hardness adaptively changing hitting object.Servo drive system is connected with the master cylinder 17 in piston reciprocating mechanism and auxiliary cylinder 19, and changes working flow and the pressure of master cylinder and auxiliary cylinder.
The signal that grating sensing detects can control servo drive system after the process of grating signal treating apparatus, changes movement velocity and the operating frequency of executing agency.Grating signal treating apparatus work block diagram as shown in Figure 2, instruction drill steel and piston can avoid empty beating; When detecting that high rigidity is hit thing, increasing oil pressure and flow by variable pump 1 and electric hydraulic control servo-fluid pressure valve (reversal valve in Fig. 3, pressure valve, flow speed control valve etc.), improving the feed speed of impact piston; The extreme position of drill steel feeding controls by sensor; Drill steel return back to and can be subject to employing travel switch location, piston slap position; The feed pressure of piston and speed change flow by sensor-based system instruction servo-drive system and adjustment pressure valve is determined, the feeding extreme position of piston is controlled by travel switch, and backward position is controlled (hard is higher by strike thing setting pressure) by sensor-based system instruction servo pressure valve.When needing crushing hard objects, sensor-based system command variable pump and accumulator increase flow system flow, make piston obtain high feed speed; When needs reduce piston feed speed, reduce flow system flow by throttle grverning valve, reduce piston feed pressure by pressure regulator valve decompression.
The servo drive system course of work, see Fig. 3:
During piston rollback, the lower oil cavitie oil-in of master cylinder 17 is opened, and piston moves up, compression upper oil cavitie and nitrogen chamber volume.The hydraulic oil now exported from pump enters lower oil cavitie through one way valve 72, reversal valve 73, flow speed control valve 79, reversal valve 77, and its flow is determined by hydraulic pump 71 and flow speed control valve 79.When input pressure and upper oil cavitie pressure (being set by pressure valve 78) balance, complete the preparation of piston impact.When the arrival of drill steel rollback is knocked position, the oil-feed of sensor-based system instruction master cylinder 17 upper oil cavitie, now reversal valve 7 replaces and connects, hydraulic pump (variable pump) 71 presses certain flow to working connection fuel feeding according to sensor-based system instruction, hydraulic oil enters upper oil cavitie through reversal valve 77, accumulator 22 can be controlled simultaneously to upper oil cavitie oiling, upper oil cavitie flow is increased, piston 27 promotes at high-volume hydraulic oil and obtains very large acceleration under the effect of nitrogen expansion explosive force, start to clash into drill steel 1, complete and once clash into action.During piston slap feeding, master cylinder cavity of resorption oil-in is closed, and oil-out is opened, and pressure oil flow back into fuel tank through reversal valve 81 and overflow valve 80 or injects accumulator.Worked by activation pressure relay 85 during piston slap drill steel, all oil-ins of upper oil cavitie are closed, and lower oil cavitie oil-in starts rollback after opening and making piston ceases movement.
Drill steel accelerates to impact to the thing that is broken under the strike of piston, and now auxiliary hydraulic cylinder 19 lower oil cavitie oil-out is opened, and oil circuit communicates with fuel tank through reversal valve 91.Resilience after drill steel impacting object, when springing back to grating and moving chi and scale A coincidence, reversal valve 91 replaces and connects, the hydraulic oil of working connection enters into the lower oil cavitie of auxiliary hydraulic cylinder through reversal valve 75 and 91, drill steel is continued upwards, and rollback is until close oil-in after colliding movable limit block 18, and pressurize makes drill steel stop at preposition waits for the shock next time of piston.If because orientation distance is improper, drill steel hits less than object or object is soft can not make drill steel automatic rebounding, grating on drill steel moves chi and will overlap with scale B, now sensor-based system instruction reversal valve 75 and 91 is in on-state, make the oil-feed of hydraulic cylinder 19 lower oil cavitie, force drill steel feed-disabling and return rapidly the position moving on to piston slap.Simultaneous sensing system sends instruction and reduces flow and the pressure that master cylinder 17 promotes piston strike drill steel.
Claims (2)
1. a self-adapting intelligent liquid gas pressure impact grinding hammer, comprise drill steel (1), the reciprocal pilot centering mechanism (2) of drill steel, piston reciprocating mechanism (3) and airtight nitrogen volume varying mechanism (4), drill steel (1) is by the reciprocal pilot centering mechanism (2) of drill steel and piston reciprocating mechanism (3) coaxial positioning, piston reciprocating mechanism (3) is connected with airtight nitrogen volume varying mechanism (4), it is characterized in that: this quartering hammer is provided with stop position sensor (5), grating signal treating apparatus (6) and servo drive system (7), grating sensor (5) is made up of a dynamic chi and two scales, dynamic chi (51) is arranged on drill steel (1) and goes up and move with drill steel (1) synchronous reciprocating, two scales are fixed on along drill steel (1) direction of feed on the fairlead (21) of the reciprocal pilot centering mechanism (2) of drill steel, wherein scale A(52) chi is upper, scale B(53) chi under, scale A chi detects dynamic chi (51) feeding and rebounds through the time of scale A test point, controls blow speed and the frequency of drill steel (1), on scale B chi, test point controls the extreme position of drill steel (1) feeding, stop position sensor (5) is connected with grating signal treating apparatus (6), and grating signal treating apparatus (6) is connected with the servo drive system (7) making drill steel (1) according to the frequency and speed of being hit object by the hardness adaptively changing hitting object.
2. self-adapting intelligent liquid gas pressure impact grinding hammer according to claim 1, it is characterized in that: servo drive system (7) is connected with the master cylinder (17) in piston reciprocating mechanism (3) and auxiliary cylinder (19), and change working flow and the pressure of master cylinder (17) and auxiliary cylinder (19).
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| CN201410803153.XA CN104532897B (en) | 2014-12-23 | 2014-12-23 | A kind of self-adapting intelligent liquid gas pressure impact grinding hammer |
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| CN201410803153.XA CN104532897B (en) | 2014-12-23 | 2014-12-23 | A kind of self-adapting intelligent liquid gas pressure impact grinding hammer |
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| CN104532897B CN104532897B (en) | 2016-07-27 |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108487032A (en) * | 2016-05-31 | 2018-09-04 | 长泰朗德机械设备有限公司 | A kind of drill steel displacement trigger mechanism |
| CN108561071A (en) * | 2018-06-21 | 2018-09-21 | 姚小林 | Electric-controlled hydraulic quartering hammer |
| CN110187380A (en) * | 2019-06-17 | 2019-08-30 | 中国铁建重工集团股份有限公司 | A kind of variable ratio frequency changer hydraulic shock focus |
| CN115434381A (en) * | 2022-09-02 | 2022-12-06 | 苏州世工机械有限公司 | Automatic nitrogen of frequency conversion explodes formula hydraulic breaking hammer |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5174387A (en) * | 1990-11-20 | 1992-12-29 | Krupp Maschinentechnik Gesellschaft Mit Beschrankter Haftung | Method and apparatus for adapting the operational behavior of a percussion mechanism to the hardness of material that is being pounded by the percussion mechanism |
| KR100675586B1 (en) * | 2005-07-22 | 2007-01-30 | 대모 엔지니어링 주식회사 | Oil hydraulic braker |
| CN201713849U (en) * | 2010-03-30 | 2011-01-19 | 唐忠盛 | Hydraulic resonance crushing hammer |
| CN103485383A (en) * | 2013-09-30 | 2014-01-01 | 江苏柳工机械有限公司 | Quartering hammer system and control method thereof |
| CN204343357U (en) * | 2014-12-23 | 2015-05-20 | 南京工业职业技术学院 | A kind of self-adapting intelligent liquid gas pressure impact grinding hammer |
-
2014
- 2014-12-23 CN CN201410803153.XA patent/CN104532897B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5174387A (en) * | 1990-11-20 | 1992-12-29 | Krupp Maschinentechnik Gesellschaft Mit Beschrankter Haftung | Method and apparatus for adapting the operational behavior of a percussion mechanism to the hardness of material that is being pounded by the percussion mechanism |
| KR100675586B1 (en) * | 2005-07-22 | 2007-01-30 | 대모 엔지니어링 주식회사 | Oil hydraulic braker |
| CN201713849U (en) * | 2010-03-30 | 2011-01-19 | 唐忠盛 | Hydraulic resonance crushing hammer |
| CN103485383A (en) * | 2013-09-30 | 2014-01-01 | 江苏柳工机械有限公司 | Quartering hammer system and control method thereof |
| CN204343357U (en) * | 2014-12-23 | 2015-05-20 | 南京工业职业技术学院 | A kind of self-adapting intelligent liquid gas pressure impact grinding hammer |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108487032A (en) * | 2016-05-31 | 2018-09-04 | 长泰朗德机械设备有限公司 | A kind of drill steel displacement trigger mechanism |
| CN108561071A (en) * | 2018-06-21 | 2018-09-21 | 姚小林 | Electric-controlled hydraulic quartering hammer |
| CN110187380A (en) * | 2019-06-17 | 2019-08-30 | 中国铁建重工集团股份有限公司 | A kind of variable ratio frequency changer hydraulic shock focus |
| CN115434381A (en) * | 2022-09-02 | 2022-12-06 | 苏州世工机械有限公司 | Automatic nitrogen of frequency conversion explodes formula hydraulic breaking hammer |
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|---|---|
| CN104532897B (en) | 2016-07-27 |
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Effective date of registration: 20201209 Address after: Jingwu Road, economic development zone, Quanjiao County, Chuzhou City, Anhui Province Patentee after: Anhui Tongtong Pipe Industry Co., Ltd Address before: 210016 No. 1 Yangshan North Road, Xianlin University City, Nanjing, Jiangsu Province Patentee before: NANJING INSTITUTE OF INDUSTRY TECHNOLOGY |
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