CN103669440A - Breaking loading roadway repairing machine for coal mine - Google Patents

Breaking loading roadway repairing machine for coal mine Download PDF

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Publication number
CN103669440A
CN103669440A CN201310688587.5A CN201310688587A CN103669440A CN 103669440 A CN103669440 A CN 103669440A CN 201310688587 A CN201310688587 A CN 201310688587A CN 103669440 A CN103669440 A CN 103669440A
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cylinder
oil
arm
rotationally connected
forearm
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CN201310688587.5A
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许世东
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Abstract

The invention discloses a breaking loading roadway repairing machine. A vehicle body part comprises a worktable, a driving device, a running device, an oil tank and a supporting leg, wherein the driving device and the running device adopt a hydraulic transmission mode, the driving device is a hydraulic driving device, is arranged at the rear portion of the worktable and comprises an explosion-proof diesel engine and an oil pump, the explosion-proof diesel engine transmits the oil pump through a coupler, an input port of the oil pump and the oil tank are communicated through an oil path, and an output port of the oil pump and two sets of oil path control valves are communicated through oil paths. Liquid is supplied to the running device and each oil cylinder through the two sets of oil path control valves, the H-shaped supporting leg is arranged at the rear portion of a support of the vehicle body, and the supporting leg is matched with a supporting leg guide rail in a sliding mode.

Description

A kind of colliery crushing and loading roadway repairer
Technical field
The present invention is a kind of colliery crushing and loading roadway repairer.
Background technology
What current colliery was used with the vertical revolution horizontal rotation of crushing and loading roadway repairer is torque drive case, by hydraulic power source and hydraulic oil cylinder driving transmission case inner rack and gear realization revolution, during revolution, owing to easily producing gap between gear and tooth bar, during revolution, produce beat phenomenon.When changing quartering hammer, because quartering hammer is heavier, so bring very large inconvenience to constructor when changing.The oil pipe that banked direction control valves is supplied with scraper bowl, quartering hammer, big and small arms and revolution transmission case hangs over both sides outward, fragile.During the revolution of swing arm left and right horizontal, because rotational angle is large, complete machine is easily turned on one's side.
Summary of the invention
The present invention is a kind of colliery crushing and loading roadway repairer, improves security and stability when it can guarantee repairer in operation and travel and easy to operate for current colliery by the shortcoming of broken loading dintheader.
The present invention has adopted following technical scheme: a kind of colliery crushing and loading roadway repairer, it comprises body part and executing agency, body part comprises workbench, drive unit, running gear, H type supports and fuel tank, drive unit and running gear are for being in transmission connection, the chassis that workbench is provided with by running gear top is connected with running gear, the front portion of workbench is connected with executing agency, executing agency mainly comprises digging arm and operating head, between digging arm and workbench, be provided with slewing equipment, digging arm comprises large arm, forearm, one end of forearm and operating head are for being rotationally connected, the other end is connected with large arm, quartering hammer is installed in forearm, top is provided with bucket cylinder, the telescopic end of bucket cylinder and operating head are for being rotationally connected, link and forearm are for being rotationally connected, bucket cylinder is communicated with the oil passage control valve of executing agency by central joint and oil pipe, large arm respectively with forearm and slewing equipment for being rotationally connected, above large arm, be provided with oil cylinder of small arm and big arm cylinder, the telescopic end of oil cylinder of small arm and link respectively with forearm and large arm for being rotationally connected, the telescopic end of big arm cylinder is rotationally connected with large arm, afterbody at digging arm is provided with bearing, the link of big arm cylinder and bearing are for being rotationally connected, oil cylinder of small arm, big arm cylinder is communicated with the oil passage control valve of manipulation device by central joint and oil pipe, it is characterized in that described drive unit is fluid pressure drive device, fluid pressure drive device is arranged on workbench, fluid pressure drive device comprises anti-explosion diesel engine and oil pump, the shaft of the output of anti-explosion diesel engine by shaft coupling and oil pump is for being in transmission connection, the delivery outlet of oil pump is communicated with the input port of two cover control valves by oil circuit, working connection control valve is guide's banked direction control valves, guide's banked direction control valves is arranged on the support of workbench, the operating grip of guide's banked direction control valves is located at support top.Supporting leg oil passage control valve is manual multiple-way valve, is arranged on seat right side.
Described operating head is bucket, quartering hammer or suspension hook.Described guide's banked direction control valves is connected with tube connector II with tube connector I respectively.Described slewing equipment comprises horizontal rotation reducer and vertical rotary reducer, bottom at horizontal rotation reducer is provided with rotating seat, one side of rotating seat is connected with center-rotary joint and vertical rotary reducer, vertical rotary reducer is connected with the bearing of digging arm, and center-rotary joint drives digging arm horizontal rotation by horizontal rotation reducer.Described running gear is provided with assembling steel crawler belt, in assembling steel crawler belt, be provided with successively from front to back guide wheel, tensioning hydro-cylinder, thrust wheel, running motor, guide wheel is supported by tensioning hydro-cylinder, one end of tensioning hydro-cylinder is connected with guide wheel, the other end is provided with oiling one way valve, front portion at running gear is provided with dozer blade device, dozer blade device comprises connecting rod and shovel body, one end of connecting rod and shovel body are for being rotationally connected, shovel body is identical with the width of excavator, the other end and chassis are provided with dozer bearing for being rotationally connected, above connecting rod, be provided with soil-shifting oil cylinder, the telescopic end of soil-shifting oil cylinder is connected with shovel body, the cylinder support that link and chassis are provided with is for being rotationally connected.Described top of oil-tank is provided with air filter, oil return filter cylinder and step plate.Described H type supporting leg, is arranged on below chassis, passes through manual multiple-way valve fuel feeding telescopic oil cylinder and the outside retractable support of hoist cylinder ground in supporting leg guide rail.
The present invention has following beneficial effect: the present invention adopts guide's banked direction control valves pilot handle, foot valve to handle, more reliable and more stable than hand-operated valve.Slewing equipment of the present invention is provided with horizontal rotation reducer and vertical rotary reducer, and its principle adopts hydraulic motor to drive, and Worm and Worm Gear Driving, has drive gap little, the feature that self-lock ability is good.When can realizing large-scale rotation, reduces digging arm beat phenomenon, the maximum magnitude that large arm rotates can reach 180 degree; the maximum magnitude that forearm rotates can reach 180 degree; the actuating range of operating head can reach 180 degree; so not only can carry out vertical dredge operation; but also can be formed on level, the bottom of equipment is cleaned; while transmission torque is large; not only can meet the labor operation of small space, and can safe ready when underground work mini-plant is moved and is carried.Operating head of the present invention can change quartering hammer and fork pawl into, and quartering hammer can carry out fragmentation reparation to hard base plate, after replacing fork pawl, can carry out supporting to the tunnel of down-hole, and range of application is wider like this, and adaptable.Before repairer crawler belt of the present invention, be provided with dozer blade device, it can be cleared up or irregular tunnel is placed under repair ground, dozer blade device is provided with soil-shifting oil cylinder, can realize like this rise or the whereabouts of shovel body, to adapt to different work requirements.Running gear of the present invention is provided with assembling steel crawler belt, in crawler belt, be provided with successively from front to back guide wheel, tensioning hydro-cylinder, thrust wheel, running motor, guide wheel is supported by tensioning hydro-cylinder, one end of tensioning hydro-cylinder is connected with guide wheel, the other end is provided with oiling one way valve, assembling steel crawler belt tool has good wearability and functional reliability, be arranged with thrust wheel with ground contacting part, security and stability in the time of can guaranteeing to travel like this, guide wheel is supported by tensioning hydro-cylinder, can make like this running gear keep constant pre-tensioning always, to adapt to the demand on different road surfaces.The present invention is provided with cooling unit on return line, can guarantee that like this temperature of fluid can be too not high.The top of fuel tank of the present invention is provided with air filter and oil return filter cylinder, can guarantee like this cleannes of system fluid.The present invention adopts fluid pressure drive device, and the flame-proof electric motor of fluid pressure drive device drives plunger for whole hydraulic system provides hydraulic power source, makes that complete machine walking is convenient, fault is few, power is large, stability hydraulic.The present invention is installed on forearm inside by quartering hammer.While needing fragmentation, as long as scraper bowl is shunk and put in place, drill steel is installed in quartering hammer, just can carries out fragmentation, greatly alleviated underground labour's labour intensity and the activity duration changing the outfit.The present invention uses center-rotary joint, make oil pipe by large forearm by being connected with each oil cylinder, reduce the damage of oil pipe.Rear portion of the present invention increases H type supporting leg, more steady while making swing arm horizontal rotation, and prevents the danger of complete machine rollover.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention.
The structural representation of Tu2Wei executing agency of the present invention.
Fig. 3 is the structural representation of slewing equipment of the present invention.
Fig. 4 is the structural representation of manipulation device of the present invention.
The specific embodiment
At Fig. 1, Fig. 2, in Fig. 3 and Fig. 4, the present invention is a kind of colliery crushing and loading roadway repairer, it comprises body part and executing agency, body part comprises workbench, drive unit, running gear and fuel tank 16, drive unit and running gear are for being in transmission connection, running gear is provided with assembling steel crawler belt 27, in assembling steel crawler belt 27, be provided with successively from front to back guide wheel 26, tensioning hydro-cylinder 28, thrust wheel 29, running motor 32, guide wheel 26 is supported by tensioning hydro-cylinder 28, one end of tensioning hydro-cylinder 28 is connected with guide wheel, the other end is provided with oiling one way valve) in the front portion of running gear, be provided with dozer blade device, dozer blade device comprises connecting rod 23 and shovel body 22, one end of connecting rod 23 and shovel body 22 are for being rotationally connected, shovel body 22 is identical with the width of excavator, the other end and chassis 33 are provided with dozer bearing 25 for being rotationally connected, above connecting rod 23, be provided with soil-shifting oil cylinder 24, the telescopic end of soil-shifting oil cylinder 24 is connected with shovel body 22, the cylinder support 25 that link and chassis 33 are provided with is for being rotationally connected, the chassis 33 that workbench is provided with by running gear top is connected with running gear, the front portion of workbench is connected with executing agency, executing agency mainly comprises digging arm and operating head, operating head is bucket 20, quartering hammer or suspension hook, between digging arm and workbench, be provided with slewing equipment, digging arm comprises large arm 4, forearm 2, one end of forearm 2 and operating head are for being rotationally connected, the other end is connected with large arm 4, above forearm 2, be provided with oil cylinder of small arm 1, quartering hammer is placed in forearm inside, the telescopic end of oil cylinder of small arm 1 and operating head are for being rotationally connected, oil cylinder of small arm 1 is communicated with oil passage control valve and the oil return pipe of executing agency respectively by oil pipe, large arm 4 respectively with forearm 2 and slewing equipment for being rotationally connected, slewing equipment comprises horizontal rotation reducer 9, in the bottom of horizontal rotation reducer 9, be provided with rotating seat 21, one side of rotating seat 21 is connected with vertical rotary reducer 8, vertical rotary reducer 8 is connected with the bearing 7 of digging arm, vertical rotary reducer 8 rotates by fluid motor-driven digging arm, the opposite side of rotating seat is connected with support 36 by center-rotary joint 10, above large arm 4, be provided with big arm cylinder 6 and boom cylinder 5, the telescopic end of big arm cylinder 6 and link respectively with forearm junction plate and large arm 4 for being rotationally connected, the telescopic end of bucket cylinder 5 is rotationally connected with large arm 4, afterbody at digging arm is provided with bearing 7, the link of big arm cylinder 6 and bearing 7 are for being rotationally connected, big arm cylinder 6 connects oil passage control valve and the oil return of manipulation device by connected pipes, drive unit is fluid pressure drive device, fluid pressure drive device is arranged on workbench, fluid pressure drive device comprises anti-explosion diesel engine 18 and oil pump 17, the output of anti-explosion diesel engine 18 is connected with oil pump 17 by shaft coupling, the delivery outlet of oil pump 17 is communicated with the input port of two oil passage control valves by oil pipe, working connection control valve is guide's banked direction control valves 11, guide's banked direction control valves 11 is connected with each action respectively by oil pipe, guide's banked direction control valves 11 is arranged on the support 36 of workbench, the operating grip 12 of guide's banked direction control valves is arranged on support top.Fuel tank 16 tops are provided with air filter 15, oil return filter cylinder 14.Support leg valve 31 is horizontal banked direction control valves, is arranged on seat 13 right sides, and 33 back lower places, chassis arrange supporting leg 35 and supporting leg guide rail 34, and supporting leg 35 is in the interior slip of supporting leg guide rail 34, to external extension.

Claims (7)

1. a colliery crushing and loading roadway repairer, it comprises body part and executing agency, body part comprises workbench, drive unit, running gear, supporting leg and fuel tank (16), drive unit is that hydraulic drive is connected with running gear, the chassis that workbench is provided with by running gear top (33) is connected with running gear, the front portion of workbench is connected with executing agency, executing agency mainly comprises digging arm and operating head, between digging arm and workbench, be provided with slewing equipment, digging arm comprises large arm (4), forearm (2), one end of forearm (2) and operating head are for being rotationally connected, the other end is connected with large arm (4), quartering hammer (19) is installed in forearm (2), top is provided with bucket cylinder (1), the telescopic end of bucket cylinder (1) and operating head are for being rotationally connected, link and forearm (2) are for being rotationally connected, bucket cylinder (1) is communicated with the oil passage control valve (11) of executing agency by central joint (10) and oil pipe, large arm (4) respectively with forearm (2) and slewing equipment for being rotationally connected, top at large arm (4) is provided with oil cylinder of small arm (5) and big arm cylinder (6), the telescopic end of oil cylinder of small arm (5) and link respectively with forearm (2) and large arm (4) for being rotationally connected, the telescopic end of big arm cylinder (6) is rotationally connected with large arm (4), afterbody at digging arm is provided with bearing (7), the link of big arm cylinder (6) and bearing (7) are for being rotationally connected, oil cylinder of small arm (5), big arm cylinder (6) is communicated with the oil passage control valve of manipulation device by central joint (10) and oil pipe, it is characterized in that described drive unit is fluid pressure drive device, fluid pressure drive device is arranged on workbench, fluid pressure drive device comprises anti-explosion diesel engine (18) and oil pump (17), the shaft of the output of anti-explosion diesel engine (18) by shaft coupling and oil pump (17) is for being in transmission connection, the delivery outlet of oil pump (17) is communicated with the input port of pilot-actuated valve (11) and manual multiple-way valve (31) by oil circuit, oil passage control valve is guide's banked direction control valves and hand control valve, guide's banked direction control valves is arranged on the support of workbench, the operating grip of guide's banked direction control valves (12) is located at support top, manual multiple-way valve is located at seat right side.
2. a kind of colliery according to claim 1 crushing and loading roadway repairer, is characterized in that described operating head is bucket (20), quartering hammer (19) or suspension hook (3).
3. a kind of colliery according to claim 1 crushing and loading roadway repairer, is characterized in that described guide's banked direction control valves (11) is connected with tube connector II with tube connector I respectively.
4. a kind of colliery according to claim 1 crushing and loading roadway repairer, it is characterized in that described slewing equipment comprises horizontal rotation reducer (9) and vertical rotary reducer (8), in the bottom of horizontal rotation reducer (9), be provided with rotating seat (21), one side of rotating seat (21) is connected with center-rotary joint (10) and vertical rotary reducer (8), vertical rotary reducer (8) is connected with the bearing (7) of digging arm, and center-rotary joint (10) drives digging arm horizontal rotation by horizontal rotation reducer (9).
5. a kind of colliery according to claim 1 crushing and loading roadway repairer, it is characterized in that described running gear is provided with assembling steel crawler belt (27), in assembling steel crawler belt (27), be provided with successively from front to back guide wheel (26), tensioning hydro-cylinder (28), thrust wheel (29), running motor (32), guide wheel (26) is supported by tensioning hydro-cylinder (28), one end of tensioning hydro-cylinder (28) is connected with guide wheel (26), the other end is provided with oiling one way valve (30), front portion at running gear is provided with dozer blade device, dozer blade device comprises connecting rod (23) and shovel body (22), one end of connecting rod (23) and shovel body (22) are for being rotationally connected, shovel body (22) is identical with the width of excavator, the other end and chassis (33) are provided with dozer bearing (25) for being rotationally connected, in the top of connecting rod (23), be provided with soil-shifting oil cylinder (24), the telescopic end of soil-shifting oil cylinder (24) is connected with shovel body (22), the cylinder support (25) that link and chassis (33) are provided with is for being rotationally connected.
6. a kind of colliery according to claim 1 crushing and loading roadway repairer, is characterized in that described top of oil-tank is provided with air filter (15), oil return filter cylinder (14).
7. a kind of colliery according to claim 1 crushing and loading roadway repairer, it is characterized in that described chassis (33) rear lower is provided with H type supporting leg (35) and supporting leg guide rail (34), supporting leg (35) is stretched and is supported by oil cylinder in supporting guide (34).
CN201310688587.5A 2013-12-17 2013-12-17 Breaking loading roadway repairing machine for coal mine Pending CN103669440A (en)

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CN201310688587.5A CN103669440A (en) 2013-12-17 2013-12-17 Breaking loading roadway repairing machine for coal mine

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Application Number Priority Date Filing Date Title
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Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103696450A (en) * 2013-12-18 2014-04-02 许世东 Repairing machine for broken loading roadway for coal mine
CN104074523A (en) * 2014-06-16 2014-10-01 郑有山 Improvement of hydraulic impact hammer cantilever structure of downhole development machine
CN104213592A (en) * 2014-09-18 2014-12-17 四川戴克机械设备有限公司 Crushing and excavation integral type backhoe loader
CN105625493A (en) * 2016-03-17 2016-06-01 唐山开滦铁拓重型机械制造有限责任公司 Small mining-crushing machine for coal mine underground tunnel
CN107893662A (en) * 2017-12-28 2018-04-10 石家庄煤矿机械有限责任公司 A kind of laneway repair machine of anti-explosion diesel engine driving
CN109519120A (en) * 2018-11-12 2019-03-26 中国十七冶集团有限公司 One kind being used for fragmentation rock stratum rock excavation fragmentation device and its installation, application method
CN110805082A (en) * 2019-11-11 2020-02-18 江苏天煤机电科技有限公司 Mining multifunctional explosion-proof excavator
CN113605472A (en) * 2021-08-27 2021-11-05 江麓机电集团有限公司 Universal hanging basket type excavating and protecting assembly for amphibious special vehicle

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2171636Y (en) * 1992-09-11 1994-07-13 铁道部第二十工程局工程机械厂 Miniatur multifunction work vehicle
JPH0953608A (en) * 1995-08-09 1997-02-25 Sumitomo Constr Mach Co Ltd Slide arm mechanism with lock device
CN2742038Y (en) * 2004-11-01 2005-11-23 姜英杰 Control travel same direction wheel type hydraulic excavating machine
CN200964597Y (en) * 2006-11-14 2007-10-24 山东黄河梁山机械厂 Engineered vehicle for dike maintenance
CN201021500Y (en) * 2007-02-01 2008-02-13 徐州徐工特种工程机械有限公司 Driver room for digging loader
US20120073890A1 (en) * 2010-09-24 2012-03-29 Bindl Reginald M Multi-Worm Circle Drive Gearbox
CN102936905A (en) * 2012-10-11 2013-02-20 许世东 Crushing loading roadway repairing machine for coal mine

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2171636Y (en) * 1992-09-11 1994-07-13 铁道部第二十工程局工程机械厂 Miniatur multifunction work vehicle
JPH0953608A (en) * 1995-08-09 1997-02-25 Sumitomo Constr Mach Co Ltd Slide arm mechanism with lock device
CN2742038Y (en) * 2004-11-01 2005-11-23 姜英杰 Control travel same direction wheel type hydraulic excavating machine
CN200964597Y (en) * 2006-11-14 2007-10-24 山东黄河梁山机械厂 Engineered vehicle for dike maintenance
CN201021500Y (en) * 2007-02-01 2008-02-13 徐州徐工特种工程机械有限公司 Driver room for digging loader
US20120073890A1 (en) * 2010-09-24 2012-03-29 Bindl Reginald M Multi-Worm Circle Drive Gearbox
CN102936905A (en) * 2012-10-11 2013-02-20 许世东 Crushing loading roadway repairing machine for coal mine

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103696450A (en) * 2013-12-18 2014-04-02 许世东 Repairing machine for broken loading roadway for coal mine
CN104074523A (en) * 2014-06-16 2014-10-01 郑有山 Improvement of hydraulic impact hammer cantilever structure of downhole development machine
CN104213592A (en) * 2014-09-18 2014-12-17 四川戴克机械设备有限公司 Crushing and excavation integral type backhoe loader
CN105625493A (en) * 2016-03-17 2016-06-01 唐山开滦铁拓重型机械制造有限责任公司 Small mining-crushing machine for coal mine underground tunnel
CN105625493B (en) * 2016-03-17 2018-07-20 唐山开滦铁拓重型机械制造有限责任公司 A kind of small-sized excavation crusher of coal mine down-hole tunnel
CN107893662A (en) * 2017-12-28 2018-04-10 石家庄煤矿机械有限责任公司 A kind of laneway repair machine of anti-explosion diesel engine driving
CN109519120A (en) * 2018-11-12 2019-03-26 中国十七冶集团有限公司 One kind being used for fragmentation rock stratum rock excavation fragmentation device and its installation, application method
CN110805082A (en) * 2019-11-11 2020-02-18 江苏天煤机电科技有限公司 Mining multifunctional explosion-proof excavator
CN113605472A (en) * 2021-08-27 2021-11-05 江麓机电集团有限公司 Universal hanging basket type excavating and protecting assembly for amphibious special vehicle

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Application publication date: 20140326