CN105156108A - Dual-power multifunctional caterpillar downhole anchoring and anchor pulling vehicle - Google Patents

Dual-power multifunctional caterpillar downhole anchoring and anchor pulling vehicle Download PDF

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Publication number
CN105156108A
CN105156108A CN201510528898.4A CN201510528898A CN105156108A CN 105156108 A CN105156108 A CN 105156108A CN 201510528898 A CN201510528898 A CN 201510528898A CN 105156108 A CN105156108 A CN 105156108A
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CN
China
Prior art keywords
compartment
power
crawler belt
caterpillar
dual
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.)
Pending
Application number
CN201510528898.4A
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Chinese (zh)
Inventor
常补孩
赵庆枝
王海斌
司天善
原磊明
董志强
马宵立
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Changzhi Yonghua Machinery Co Ltd
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Changzhi Yonghua Machinery Co Ltd
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Publication date
Application filed by Changzhi Yonghua Machinery Co Ltd filed Critical Changzhi Yonghua Machinery Co Ltd
Priority to CN201510528898.4A priority Critical patent/CN105156108A/en
Publication of CN105156108A publication Critical patent/CN105156108A/en
Pending legal-status Critical Current

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Abstract

The invention belongs to the technical field of vehicles for underground environments of mines, particularly relates to a dual-power anchoring and anchor pulling working vehicle applied to underground environments of mines, and discloses a dual-power multifunctional caterpillar downhole anchoring and anchor pulling vehicle which comprises a driving cab and a compartment. The compartment is connected to the rear end of the driving cab, double rows of seats and an operating handle are arranged in the driving cab, the vehicle can be operated by the aid of the operating handle to integrally run, a tunneling machine is mounted in the compartment, and the tunneling machine and an anchoring protection device with a protection effect are arranged in the compartment. The dual-power multifunctional caterpillar downhole anchoring and anchor pulling vehicle has the advantages that the tunneling machine can move along with the vehicle, and accordingly the dual-power multifunctional caterpillar downhole anchoring and anchor pulling vehicle is quite convenient; a traveling device is provided with an electric driving system and a hydraulic driving system which can provide power for the traveling device, a dual-power driving system comprises the electric driving system and the hydraulic driving system, the hydraulic driving system is utilized when the dual-power multifunctional caterpillar downhole anchoring and anchor pulling vehicle is used in underground environments of mines, the electric driving system is utilized when the dual-power multifunctional caterpillar downhole anchoring and anchor pulling vehicle is used on the mines, accordingly, the dual-power multifunctional caterpillar downhole anchoring and anchor pulling vehicle is high in speed, and transportation on the mines can be facilitated; an engine is arranged at the front end of the compartment, is a diesel engine, is mainly used for providing power for the hydraulic driving system and also can be used for providing electric energy for the electric driving system.

Description

Anchor car is dialled in double dynamical multifunction caterpillar down-hole anchoring
Technical field
Use car technical field under the invention belongs to ore deposit, be specifically related to a kind of double dynamical anchoring be applied under ore deposit and dial anchor work car.
Background technology
Along with the fast development of China's economy, coal industry is constantly towards mechanization, and the future development of automation, comprehensive mechanization there just is not equipment to be more and more widely used in the coal production of various geological conditions.Tunnelling link, except the quality of development machine own increases, integrated artistic level still remains the degree of the 1970s and 1980s in last century.Its main cause limits by geological conditions, and unsupported back span is less, can not realize driving and support work parallel operations.And currently used the mode of the bolt support, equipment is simple, and complete primarily of hand labor, labour intensity is high.
Summary of the invention
The present invention overcomes the deficiency that prior art exists; aim to provide one and be applied in work car under mine; this work car adopts electric drive and hydraulic-driven two kinds of power; and use explosion-proof rubber belt track as walking mechanism; the Anchor Care device being provided with development machine in compartment and shield; development machine can move with car, very convenient.
In order to solve the problems of the technologies described above, the technical solution used in the present invention is: anchor car is dialled in double dynamical multifunction caterpillar down-hole anchoring, comprise driver's cabin and the compartment being connected to driver's cabin rear end, layont of Interior Cab has double seat and operating grip, the overall operation of vehicle can be operated by operating grip, in compartment, development machine is installed, the bottom in compartment is connected with running gear by floating bearing, running gear configures power-driven system and the fluid power system that promising running gear provides power, power-driven system and fluid power system composition dual power drive system, fluid power system is adopted when using under ore deposit, ore deposit when using adopt power-driven system, speed is fast, facilitate on ore deposit and transport.Motor is equipped with in the front end in compartment, and motor is Diesel engine, is mainly fluid power system and provides power, simultaneously also for power-driven system provides electric energy.
The bottom-hinged of development machine is in compartment, the middle part of development machine is supported in compartment by oil cylinder, the termination of development machine is connected with Anchor Care device, Anchor Care device comprises fixed guide and sliding guide piece, fixed guide is fixed on development machine, and sliding guide piece can do straight-line displacement relative to fixed guide, and the termination of sliding guide piece is connected with top assembling device by arm head, top telescopic supporting device is equipped with on the top of top assembling device, and end stretch contracting suspension device is equipped with in the bottom of answering back to device.By Anchor Care Plant arrangement on development machine, compact conformation, Anchor Care device can protect top assembling device not by the collsion damage in tunnel, controls convenient, works more reliable.
Running gear comprises two symmetrically arranged track frames, track frame comprises crawler belt, suspension holdfast, is located at the driving wheel of suspension holdfast front end and is located at the driven pulley of suspension holdfast rear end, crawler belt forms a closed ring-type after walking around the outer end of driving wheel and driven pulley successively, drive crawler belt to rotate by driving wheel, driven pulley maintains the normal operation of crawler belt.The top of suspension holdfast is connected with multiple BOGEY WHEEL, multiple BOGEY WHEEL is along the length direction equidistant placement of suspension holdfast, multiple BOGEY WHEEL is supported on the medial surface of upper track, multiple BOGEY WHEEL and crawler belt move in the same way, avoid crawler belt to droop downwards and affect the normal operation of crawler belt, the phenomenons such as such as crawler belt skidding.The bottom of suspension holdfast is connected with multiple thrust wheel, multiple thrust wheel is along the length direction equidistant placement of suspension holdfast, multiple thrust wheel is contained in the medial surface of bottom crawler belt, multiple thrust wheel and crawler belt move in the same way, ensured the straight line running of crawler belt by thrust wheel, avoid crawler belt reverse and cause crawler belt to fracture.
Crawler belt comprises metal cords layer in the form of a ring, and the lateral surface of metal cords layer and medial surface are axially evenly equipped with some the arched frameworks axially arranged, and self compressive strength of arched framework increases, and improves the total quality of rubber belt track.On the left side of arched framework and right side, cover has annular nylon buckle, metal cords layer and arched framework all form rubber belt track body by the direct fluidisation of rubber, rubber belt track body wraps metal cords layer, arched framework form integral structure with annular nylon buckle, arched framework adopts metal material, high with the bond strength of rubber fluidisation, rubber is not easily peeled off from skeleton, improves the quality of crawler belt.
Two driving wheels are connected by back axle, power-driven system comprises battery and motor, battery is placed in the seat rear in driver's cabin, saving takes up room, battery charges under the drive of generator, and the output shaft of motor is connected with first clutch by after the first reductor reduction of speed, and first clutch is connected with back axle by power transmission shaft, back axle drives two driving wheels to rotate, and realizes the rotation of crawler belt.Power-driven system is mainly used in ore deposit travels, and speed is fast, and relative to hydraulic-driven, flexibility is higher, and practical function is better.
Fluid power system comprises hydraulic motor, hydraulic motor is arranged on suspension holdfast, be connected with second clutch after the output shaft of hydraulic motor crosses the second reductor reduction of speed, second clutch is connected with back axle by power transmission shaft, by the combination of Hydraulic Elements, send the power of hydraulic motor to back axle, back axle drives two driving wheels to rotate, and realizes the rotation of crawler belt.Power-driven system travels under being mainly used in ore deposit, and safety and stability meets requirement of explosion proof.
The afterbody in compartment is had a back door connection by hinge, and the top at back door is connected with compartment by clamping button, and convenient unloading, staircase is installed at back door, facilitates personnel to get on or off the bus.
The concrete structure of metal cords layer is: comprise several metallic coils, the axis of several metallic coils is identical with the axis of crawler belt, several metallic coils being horizontally arranged at interval along crawler belt, several metallic coils are that axially-aligned is located in rubber belt track body, increase structural strength and bond strength.
Outside metal cords layer, bag is provided with viscose casing ply, and bond strength is high.
Wherein, as preferably, the inner ring surface of annular nylon buckle is provided with plural fulcrum, and annular nylon buckle can not drop, good to the protective value of rubber belt track, prevents the rubber belt track clamping part situations such as strip off that ftracture from occurring.
The present invention compared with prior art has following beneficial effect:
One, the present invention adopts rubber-wrapped creeper tread, can on road surface, down-hole non-sclerous and sclerosis condition under pass through.
Two, the present invention adopts driven by power and hydraulically powered dual dynamic type of drive, runs all very convenient on ore deposit and under ore deposit.
Three, be provided with development machine and Anchor Care device in compartment of the present invention, development machine moves with car, and Anchor Care apparatus structure is compact, can protect the safety that development machine runs in tunnel, and it is convenient to control, reliable operation.
Accompanying drawing explanation
Below in conjunction with accompanying drawing, the present invention will be further described in detail.
Fig. 1 is structural representation of the present invention.
Fig. 2 is dual dynamic drive system of the present invention.
Fig. 3 is the structural representation of crawler belt in Fig. 1.
Fig. 4 is the local structural graph of track surface in Fig. 1.
Fig. 5 is the structural representation of arched framework in Fig. 1.
Fig. 6 is the schematic partial cross-sectional view of crawler belt.
In figure: 1 is driver's cabin, 2 is compartment, 3 is floating bearing, 4 is running gear, 5 is track frame, 6 is suspension holdfast, 7 is driving wheel, 8 is driven pulley, 9 is BOGEY WHEEL, 10 is thrust wheel, 11 is crawler belt, 12 is back axle, 13 is battery, 14 is motor, 15 is seat, 16 is the first reductor, 17 is first clutch, 18 is power transmission shaft, 19 is hydraulic motor, 20 is the second reductor, 21 is second clutch, 22 is back door, 23 is clamping button, 24 is development machine, 25 is oil cylinder, 26 is Anchor Care device, 27 is fixed guide, 28 is sliding guide piece, 29 is arm head, 30 is top assembling device, 31 is top telescopic supporting device, 32 is end stretch contracting suspension device, 111 is metal cords layer, 112 is arched framework, 113 is annular nylon buckle, 114 is rubber belt track body, 115 is metallic coil, 116 is viscose casing ply, 117 is fulcrum.
Detailed description of the invention
In conjunction with the accompanying drawings, the present invention is further detailed explanation, and accompanying drawing is the schematic diagram simplified, and only basic structure of the present invention is described in a schematic way, therefore it only shows the formation relevant with the present invention.
As shown in figures 1 to 6, anchor car is dialled in double dynamical multifunction caterpillar down-hole anchoring, comprise driver's cabin 1 and the compartment 2 being connected to driver's cabin 1 rear end, double seat 15 and operating grip is furnished with in driver's cabin 1, the overall operation of vehicle can be operated by operating grip, development machine 24 is installed in compartment 2, the bottom in compartment 2 is connected with running gear 4 by floating bearing 3, running gear 4 configures power-driven system and the fluid power system that promising running gear 4 provides power, power-driven system and fluid power system composition dual power drive system, fluid power system is adopted when using under ore deposit, ore deposit when using adopt power-driven system, speed is fast, facilitate on ore deposit and transport.Motor is equipped with in the front end in compartment 2, and motor is Diesel engine, is mainly fluid power system and provides power, simultaneously also for power-driven system provides electric energy.
The bottom-hinged of development machine 24 is in compartment 2, the middle part of development machine 24 is supported in compartment 2 by oil cylinder 25, the termination of development machine 24 is connected with Anchor Care device 26, Anchor Care device 26 comprises fixed guide 27 and sliding guide piece 28, fixed guide 27 is fixed on development machine 24, sliding guide piece 28 can do straight-line displacement relative to fixed guide 27, the termination of sliding guide piece 28 is connected with top assembling device 30 by arm head 29, top telescopic supporting device 31 is equipped with on the top of top assembling device 30, and end stretch contracting suspension device 32 is equipped with in the bottom of answering back to device.Be arranged in by Anchor Care device 26 on development machine 24, compact conformation, Anchor Care device 26 can protect top assembling device 30 not by the collsion damage in tunnel, controls convenient, works more reliable.
Running gear 4 comprises two symmetrically arranged track frames 5, track frame 5 comprises crawler belt 11, suspension holdfast 6, is located at the driving wheel 7 of suspension holdfast 6 front end and is located at the driven pulley 8 of suspension holdfast 6 rear end, crawler belt 11 forms a closed ring-type after walking around the outer end of driving wheel 7 and driven pulley 8 successively, drive crawler belt 11 to rotate by driving wheel 7, driven pulley 8 maintains the normal operation of crawler belt 11.The top of suspension holdfast 6 is connected with multiple BOGEY WHEEL 9, multiple BOGEY WHEEL 9 is along the length direction equidistant placement of suspension holdfast 6, multiple BOGEY WHEELs 9 are supported on the medial surface of upper track 11, multiple BOGEY WHEEL 9 moves in the same way with crawler belt 11, crawler belt 11 is avoided to droop and affect the normal operation of crawler belt 11 downwards, the phenomenons such as such as crawler belt 11 skidding.The bottom of suspension holdfast 6 is connected with multiple thrust wheel 10, multiple thrust wheel 10 is along the length direction equidistant placement of suspension holdfast 6, multiple thrust wheels 10 are contained in the medial surface of bottom crawler belt 11, multiple thrust wheel 10 moves in the same way with crawler belt 11, ensured the straight line running of crawler belt 11 by thrust wheel 10, avoid crawler belt 11 reverse and cause crawler belt 11 to fracture.
Crawler belt 11 comprises metal cords layer 111 in the form of a ring, and the lateral surface of metal cords layer 111 and medial surface are axially evenly equipped with some the arched frameworks 112 axially arranged, and self compressive strength of arched framework 112 increases, and improves the total quality of rubber belt track 11.On the left side of arched framework 112 and right side, cover has annular nylon buckle 113, metal cords layer 111 and arched framework 112 all form rubber belt track body 114 by the direct fluidisation of rubber, rubber belt track body 114 wraps metal cords layer 111, arched framework 112 form integral structure with annular nylon buckle 113, arched framework 112 adopts metal material, high with the bond strength of rubber fluidisation, rubber is not easily peeled off from skeleton, improves the quality of crawler belt 11.
Two driving wheels 7 are connected by back axle 12, power-driven system comprises battery 13 and motor 14, battery 13 is placed in seat 15 rear portion in driver's cabin 1, saving takes up room, battery 13 charges under the drive of generator, and the output shaft of motor 14 is connected with first clutch 17 by after the first reductor 16 reduction of speed, and first clutch 17 is connected with back axle 12 by power transmission shaft 18, back axle 12 drives two driving wheels 7 to rotate, and realizes the rotation of crawler belt 11.Power-driven system is mainly used in ore deposit travels, and speed is fast, and relative to hydraulic-driven, flexibility is higher, and practical function is better.
Fluid power system comprises hydraulic motor 19, hydraulic motor 19 is arranged on suspension holdfast 6, be connected with second clutch 21 after the output shaft of hydraulic motor 19 crosses the second reductor 20 reduction of speed, second clutch 21 is connected with back axle 12 by power transmission shaft 18, by the combination of Hydraulic Elements, send the power of hydraulic motor 19 to back axle 12, back axle 12 drives two driving wheels 7 to rotate, and realizes the rotation of crawler belt 11.Power-driven system travels under being mainly used in ore deposit, and safety and stability meets requirement of explosion proof.
The afterbody in compartment 2 has a back door connection 22 by hinge, and the top at back door 22 is connected with compartment 2 by clamping button 23, and convenient unloading, staircase is installed at back door 22, facilitates personnel to get on or off the bus.
The concrete structure of metal cords layer 111 is: comprise several metallic coils 115, the axis of several metallic coils 115 is identical with the axis of crawler belt 11, several metallic coils 115 being horizontally arranged at interval along crawler belt 11, several metallic coils 115 are located in rubber belt track body 114 in axially-aligned, increase structural strength and bond strength.
Outside metal cords layer 111, bag is provided with viscose casing ply 116, and bond strength is high.
Wherein, as preferably, the inner ring surface of annular nylon buckle 113 is provided with plural fulcrum 117, and annular nylon buckle 113 can not drop, good to the protective value of rubber belt track 11, prevents the rubber belt track 11 clamping part situations such as strip off that ftracture from occurring.
The present invention adopts rubber-wrapped creeper tread, can on road surface, down-hole non-sclerous and sclerosis condition under pass through.
The present invention adopts driven by power and hydraulically powered dual dynamic type of drive, runs all very convenient on ore deposit and under ore deposit.
Be provided with development machine 24 and Anchor Care device 26 in compartment 2 of the present invention, development machine 24 moves with car, and Anchor Care device 26 compact conformation, can protect the safety that development machine 24 runs in tunnel, and it is convenient to control, reliable operation.
By reference to the accompanying drawings embodiments of the invention are explained in detail above, but the present invention is not limited to above-described embodiment, in the ken that those of ordinary skill in the art possess, can also makes a variety of changes under the prerequisite not departing from present inventive concept.

Claims (6)

1. anchor car is dialled in double dynamical multifunction caterpillar down-hole anchoring, it is characterized in that, comprise driver's cabin (1) and be connected to the compartment (2) of driver's cabin (1) rear end, motor is equipped with in the front end in described compartment (2), development machine (24) is installed in compartment (2), the bottom in described compartment (2) is connected with running gear (4) by floating bearing (3), and described running gear (4) configures power-driven system and the fluid power system that promising running gear (4) provides power;
The bottom-hinged of described development machine (24) is in compartment (2), the middle part of development machine (24) is supported in compartment (2) by oil cylinder (25), the termination of described development machine (24) is connected with Anchor Care device (26), described Anchor Care device (26) comprises fixed guide (27) and sliding guide piece (28), described fixed guide (27) is fixed on development machine (24), sliding guide piece (28) can be upper mobile in fixed guide (27), the termination of described sliding guide piece (28) is connected with top assembling device (30) by arm head (29), top telescopic supporting device (31) is equipped with on the top on described top assembling device (30), end stretch contracting suspension device (32) is equipped with in the bottom of answering back to device,
Described running gear (4) comprises two symmetrically arranged track frames (5), track frame (5) comprises crawler belt (11), suspension holdfast (6), be located at the driving wheel (7) of suspension holdfast (6) front end and be located at the driven pulley (8) of suspension holdfast (6) rear end, described crawler belt (11) forms a closed ring-type after walking around the outer end of driving wheel (7) and driven pulley (8) successively, the top of described suspension holdfast (6) is connected with multiple BOGEY WHEEL (9), multiple BOGEY WHEEL (9) is along the length direction equidistant placement of suspension holdfast (6), multiple BOGEY WHEEL (9) is supported on the medial surface of upper track (11), multiple BOGEY WHEEL (9) and crawler belt (11) move in the same way, the bottom of described suspension holdfast (6) is connected with multiple thrust wheel (10), multiple thrust wheel (10) is along the length direction equidistant placement of suspension holdfast (6), multiple thrust wheel (10) is contained in the medial surface of bottom crawler belt (11), multiple thrust wheel (10) and crawler belt (11) move in the same way,
Described crawler belt (11) comprises metal cords layer (111) in the form of a ring, the lateral surface of metal cords layer (111) and medial surface are axially evenly equipped with some the arched frameworks (112) axially arranged, on the left side of arched framework (112) and right side, cover has annular nylon buckle (113), described metal cords layer (111) and arched framework (112) all form rubber belt track body (114) by the direct fluidisation of rubber, described rubber belt track body (114) wraps metal cords layer (111), arched framework (112) also forms integral structure with annular nylon buckle (113).
2. anchor car is dialled in double dynamical multifunction caterpillar down-hole anchoring according to claim 1, it is characterized in that, two described driving wheels (7) are connected by back axle (12), described power-driven system comprises battery (13) and motor (14), battery (13) is placed in seat (15) rear portion in driver's cabin (1), the output shaft of motor (14) is connected with first clutch (17) by after the first reductor (16) reduction of speed, and first clutch (17) is connected with back axle (12) by power transmission shaft (18);
Described fluid power system comprises hydraulic motor (19), described hydraulic motor (19) is arranged on suspension holdfast (6), be connected with second clutch (21) after the output shaft of described hydraulic motor (19) crosses the second reductor (20) reduction of speed, second clutch (21) is connected with back axle (12) by power transmission shaft (18).
3. anchor car is dialled in double dynamical multifunction caterpillar down-hole anchoring according to claim 2, it is characterized in that, the afterbody in described compartment (2) is had a back door connection (22) by hinge, and the top of described back door (22) is connected with compartment (2) by clamping button (23).
4. anchor car is dialled in double dynamical multifunction caterpillar down-hole anchoring according to claim 3, it is characterized in that, the concrete structure of described metal cords layer (111) is: comprise several metallic coils (115), the axis of several metallic coils (115) is identical with the axis of crawler belt (11), several metallic coils (115) being horizontally arranged at interval along crawler belt (11), described several metallic coils (115) are located in axially-aligned in rubber belt track body (114).
5. anchor car is dialled in double dynamical multifunction caterpillar down-hole anchoring according to claim 4, it is characterized in that, described metal cords layer (111) outside bag is provided with viscose casing ply (116).
6. anchor car is dialled in double dynamical multifunction caterpillar down-hole anchoring according to claim 5, it is characterized in that, the inner ring surface of described annular nylon buckle (113) is provided with plural fulcrum (117).
CN201510528898.4A 2015-08-26 2015-08-26 Dual-power multifunctional caterpillar downhole anchoring and anchor pulling vehicle Pending CN105156108A (en)

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Application Number Priority Date Filing Date Title
CN201510528898.4A CN105156108A (en) 2015-08-26 2015-08-26 Dual-power multifunctional caterpillar downhole anchoring and anchor pulling vehicle

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Application Number Priority Date Filing Date Title
CN201510528898.4A CN105156108A (en) 2015-08-26 2015-08-26 Dual-power multifunctional caterpillar downhole anchoring and anchor pulling vehicle

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Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN87212109U (en) * 1987-08-20 1988-10-26 王永阁 Muti-function walking type loader
CN2090420U (en) * 1990-10-04 1991-12-11 焦作矿务局铆杆金具厂 Friction type anchoring-bolt with big inch tube and throughout seam
JPH09144393A (en) * 1995-11-27 1997-06-03 Matsushita Electric Works Ltd Foundation structure
JPH09177103A (en) * 1995-12-27 1997-07-08 Daiwa Kuresu Kk Retaining wall building construction
CN202788848U (en) * 2012-08-22 2013-03-13 中传重型装备有限公司 Tunneling, anchoring and protection integrated machine
CN203806024U (en) * 2014-04-25 2014-09-03 湖南新天和工程设备有限公司 Novel crawler-type loader-digger
CN203995647U (en) * 2014-07-01 2014-12-10 徐工集团工程机械股份有限公司 A kind of hybrid power crawler crane
CN204124225U (en) * 2014-08-30 2015-01-28 浙江三门维艾尔工业有限公司 Snowfield car rubber belt track
CN205036374U (en) * 2015-08-26 2016-02-17 长治市永华机械有限公司 Anchor car is dialled in anchor in pit of double dynamical multifunctional crawler -type

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN87212109U (en) * 1987-08-20 1988-10-26 王永阁 Muti-function walking type loader
CN2090420U (en) * 1990-10-04 1991-12-11 焦作矿务局铆杆金具厂 Friction type anchoring-bolt with big inch tube and throughout seam
JPH09144393A (en) * 1995-11-27 1997-06-03 Matsushita Electric Works Ltd Foundation structure
JPH09177103A (en) * 1995-12-27 1997-07-08 Daiwa Kuresu Kk Retaining wall building construction
CN202788848U (en) * 2012-08-22 2013-03-13 中传重型装备有限公司 Tunneling, anchoring and protection integrated machine
CN203806024U (en) * 2014-04-25 2014-09-03 湖南新天和工程设备有限公司 Novel crawler-type loader-digger
CN203995647U (en) * 2014-07-01 2014-12-10 徐工集团工程机械股份有限公司 A kind of hybrid power crawler crane
CN204124225U (en) * 2014-08-30 2015-01-28 浙江三门维艾尔工业有限公司 Snowfield car rubber belt track
CN205036374U (en) * 2015-08-26 2016-02-17 长治市永华机械有限公司 Anchor car is dialled in anchor in pit of double dynamical multifunctional crawler -type

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Application publication date: 20151216

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