CN100450902C - Bulk material loading and anloading method and tracting bucket wheel material stacking and taking machine - Google Patents

Bulk material loading and anloading method and tracting bucket wheel material stacking and taking machine Download PDF

Info

Publication number
CN100450902C
CN100450902C CNB200310113433XA CN200310113433A CN100450902C CN 100450902 C CN100450902 C CN 100450902C CN B200310113433X A CNB200310113433X A CN B200310113433XA CN 200310113433 A CN200310113433 A CN 200310113433A CN 100450902 C CN100450902 C CN 100450902C
Authority
CN
China
Prior art keywords
belt
trailer coupling
arm
bucket
frame
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.)
Expired - Fee Related
Application number
CNB200310113433XA
Other languages
Chinese (zh)
Other versions
CN1616329A (en
Inventor
温建
Original Assignee
温建
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by 温建 filed Critical 温建
Priority to CNB200310113433XA priority Critical patent/CN100450902C/en
Publication of CN1616329A publication Critical patent/CN1616329A/en
Application granted granted Critical
Publication of CN100450902C publication Critical patent/CN100450902C/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Abstract

The present invention discloses a bulk material loading and unloading method and a traction type bucket wheel stacker reclaimer. The present invention is characterized in that the stacker reclaimer which works in the mode that a traction mechanism provided with a bucket wheel runs on a bulk material yard in universal directions and simultaneously pulls a conveying arm and a track running mechanism to slide along a track. Compared with the existing door type, bridge type and rocking arm type bucket wheel stacker reclaimer, the present invention does not need a cross beam and a track which have wide span, and omits a boom hoisting mechanism, a rotating driving mechanism and a balance weight which are complicated so as to greatly simplify equipment, reduce the energy consumption power, improve the flexibility and the stability of the equipment, reduce the dead weight and the manufacturing cost of the equipment in multiples, decrease the maintenance quantity of the equipment, and have obvious economic benefit. The bulk material loading and unloading method and the traction type bucket wheel stacker reclaimer can be widely used in bulk material stacking and reclaiming operation in raw material yards of harbors, power plants, metallurgy plants, cement plants, etc.

Description

A kind of bulk cargo handling method and towed bucket-wheel stacker reclaimer
Technical field
The present invention relates to a kind of method and apparatus of bulk cargo loading and unloading, particularly a kind of combination bucket-wheel stacker reclaimer.
Background technology
Combination bucket-wheel stacker reclaimer now has been widely used in raw material goods yards such as harbour, power plant, metallurgy, cement as important bulk cargo handling equipment, the handling method that adopts is at present: lay track on the bulk cargo place, armamentarium is installed in the track travel mechanism, in track travel mechanism, equip power, driving arrangement comes and goes operation in orbit, carries out bulk material pile, gets operation.Up to the present device type mainly contains two kinds: a kind of is gate-type or bridge-type bucket-wheel stacker reclaimer, and another kind is the rocker-arm bucket-wheel stacker reclaimer.
In order to satisfy the scope of work in bulk cargo place, the gate-type of these bucket-wheel stacker reclaimers, bridge-type crossbeam or cantilever all need bigger length, for the stable equipment operation requirement, cause these equipment bulky, mechanism is complicated, structure is heavy.For example gate-type or bridge-type bucket-wheel stacker reclaimer need to adopt two pairs of tracks to adapt to the beam structure of large span, and equipment is installed and taken up an area of greatly, and its maneuvering performance is restricted, and operating efficiency is not high; Rocker-arm bucket-wheel stacker reclaimer for another example, though adopt single volume and fabricating yard that track has been reduced equipment, improved the manoevreability of equipment, but stability reduces, the gravity of cantilever needs in addition balance of very big counterweight, cause luffing mechanism, swing type mechanism complexity, cantilever has bigger dead angle when revolution in addition, and operating efficiency also is restricted.
The bulk cargo handling method and the status of equipment of this low load with strong power are not effectively improved for a long time, the novel cantilever bucket-wheel stacker reclaimer in CN 94204208.5 disclosed stock grounds, supporting construction to cantilever has proposed improvement, but does not fundamentally solve the technical barrier that equipment is huge, mechanism is complicated, structure is heavy, operating efficiency is low, manufacturing cost is high that this orthodox method is brought.
Summary of the invention
The objective of the invention is to overcome the above-mentioned shortcoming of existing bulk cargo handling method and combination bucket-wheel stacker reclaimer, a kind of new bulk cargo handling method and equipment are proposed, the conventional drive mode of change equipment, will be originally from the track travel mechanism driving arrangement come and go operation, change into trailer coupling universal walking on the bulk cargo place, draw or dragging equipment and come and go in orbit and slide.
The technical characterictic that the present invention proposes the bulk cargo handling method is: a conveying arm is connected across between a trailer coupling and the track travel mechanism, trailer coupling is universal walking in the bulk cargo place, and track travel mechanism is pulled mechanism and conveying arm and is drawing in orbit and slide.If when all needing operation in single both sides to track, gap bridge of building on this track, trailer coupling can be crossed over this gap bridge and arrive another bulk cargo place.A material fetching mechanism is installed on the trailer coupling during material extracting operation, is articulated a material loading trailer during windrow operation in the track travel mechanism, so the heap of forming, get material equipment and in the reached scope in bulk cargo place, carry out the bulk cargo loading and unloading operation.
A. material extracting operation: trailer coupling drives material fetching mechanism and comes and goes operation gets material in the bulk cargo place, and bulk cargo sequentially is transported in the track travel mechanism by conveying arm, transports by the ground belt feeder again;
B. windrow operation: bulk cargo is transported on the trailer coupling through ground belt feeder, material loading trailer and conveying arm, and trailer coupling comes and goes operation and carries out windrow in the bulk cargo place.
Described trailer coupling can adopt structures such as crawler vehicle, tire car, its power can adopt electrical motor, fuel engines etc., track travel mechanism does not then need equipment walking power, rotary motive power and pitching power, has saved complicated swing type mechanism, luffing mechanism and heavy counterweight accordingly.
Can design heteroid bulk cargo handling equipment according to this bulk cargo handling method, the invention provides a kind of towed bucket-wheel stacker reclaimer embodiment, it is characterized in that it mainly is made up of trailer coupling, material fetching mechanism, conveying arm, belt extension arm and track travel mechanism, wherein, material fetching mechanism and belt extension arm are installed on the trailer coupling, one end and the trailer coupling of conveying arm are hinged, and the other end and track travel mechanism are hinged.
The invention has the beneficial effects as follows, a kind of new bulk cargo handling method is provided, this method adopts the traction principle to change the type of drive that existing heap is got material equipment, and equipment is simplified greatly, can design heteroid bulk cargo handling equipment according to this method.A kind of towed bucket-wheel stacker reclaimer of design-calculated of the present invention is compared with existing gate-type, bridge-type, rocker-arm bucket-wheel stacker reclaimer, has following distinguishing feature:
1. simple in equipment has reduced volume, deadweight and the manufacturing cost of equipment exponentially.
2. the major advantage that possesses two types of equipment simultaneously, good as the big span structural stability of gate-type, bridge-type bucket-wheel stacker reclaimer, the manoevreability of rocker-arm bucket-wheel stacker reclaimer is good, adopts single little to the track equipment occupation of land.
3. degreeof turn is big, and the rotation angle of trailer coupling can reach 360 degree, and the revolution angle that trailer coupling drags conveying arm and track travel mechanism also can reach 360 degree, has further improved the manoevreability and the operating efficiency of equipment.
4. operator's compartment is arranged on the trailer coupling, and the operation sighting distance is near.
5. equipment self-weight is little, and the wheel that track bears forces down.
6. electric power is little, energy savings.
7. mechanism is simple, is convenient to safeguard, can significantly reduce the maintenance cost of equipment.
8. for the cantilever type bucket-wheel stacker-reclaimer of existing operation, can utilize original track, track travel mechanism, cantilever and bucket wheel mechanism, be convenient to carry out scrap build.
Description of drawings
The present invention is further described below in conjunction with drawings and Examples.
Fig. 1 is the general illustration that the present invention proposes the bulk cargo handling method.
Fig. 2, Fig. 3 are the organigrams of trailer coupling among the embodiment, material fetching mechanism, belt extension arm and conveying arm head.
Fig. 4, Fig. 5 are the organigrams of embodiment middle orbit traveling gear and conveying arm afterbody.
Fig. 6 is the driver behavior panel scheme drawing of the towed bucket-wheel stacker reclaimer of embodiment.
The specific embodiment
The towed bucket-wheel stacker reclaimer of embodiment that the present invention proposes mainly is made up of trailer coupling, material fetching mechanism, conveying arm, belt extension arm and track travel mechanism.
In Fig. 1, a conveying arm 4 is connected across between trailer coupling 3 and the track travel mechanism 2, trailer coupling 3 is universal walking in bulk cargo place 7, track travel mechanism 2 is pulled mechanism 3 and conveying arm 4 and is drawing on track 1 and slide, one of building passes a bridge 5 on track 1 and ground belt feeder 6, trailer coupling 3 can be crossed over and pass a bridge 5 to another bulk cargo place operation, during material extracting operation, a material fetching mechanism is installed on trailer coupling 3, during the windrow operation, track travel mechanism 2 articulates a material loading trailer, so the heap of forming, get material equipment and in the reached scope in bulk cargo place, carry out the bulk cargo loading and unloading operation.
Fig. 2, Fig. 3 have illustrated the essential structure of trailer coupling, material fetching mechanism, belt extension arm and conveying arm head, Fig. 4, Fig. 5 to illustrate the essential structure of track travel mechanism and conveying arm afterbody.
In the drawings:
8-damping oil cylinder 9-crawler travel car
10-trailer coupling thrust baring 11-trailer coupling frame
12-middle hinge 13-conveying arm bearing
14-material fetching mechanism bearing 15-operator's compartment
16-bucket wheel 17-bucket wheel driving motor
18-movable arm 19-hydraulic ram
20-track travel car 21-blanking barrel
22-turn table 23-traveling gear thrust baring
The conveying arm bearing 25-of 24-track travel mechanism material loading trailer link
The capable frame 27-of 26-belt extension arm
28-belt drive electrical motor 29-belt tension device
30-belt head bending roller 31-strap end bending roller
Changed course cylinder 33-belt idler pulley in the middle of the 32-belt
34-inclined chute 35-belt
The material loading trailer adopts prior art, and figure slightly.
Described trailer coupling mainly is made up of crawler travel car, thrust baring and frame, wherein, crawler travel car 9 adopts direct motor drive, thrust baring that horizontally rotates 10 of installation on the crawler travel car, connect a pair of middle hinge 12 and a damping oil cylinder 8 between the last plane of thrust baring and the frame 11, a pair of conveying arm bearing 13 is arranged on frame, also have a pair of material fetching mechanism bearing 14, as required, operator's compartment 15 can be installed on this frame.The effect of middle hinge is to avoid trailer coupling to conveying arm effect torsion, and the effect of damping oil cylinder is additional torsion and the vibration that when reducing bucket wheel work conveying arm is produced.
Described material fetching mechanism mainly is made up of bucket wheel mechanism, movable arm and hydraulic ram, wherein, bucket wheel mechanism comprises bucket wheel 16 and the inclined chute 34 of installing at the driving motor 17 and the opposite side of the installation of bucket wheel one side, bucket wheel mechanism is installed in the head of movable arm 18, material fetching mechanism bearing on the afterbody of movable arm and the trailer coupling frame is hinged, and hydraulic ram 19 is installed between the bottom of movable arm and the frame of trailer coupling.
Described belt extension arm 27 is installed side by side with the movable arm 18 of material fetching mechanism, the afterbody of belt extension arm also with the trailer coupling frame on conveying arm bearing 13 hinged, its jointed shaft is preferably coaxial with the jointed shaft of conveying arm, and its axial line overlaps with the hinged axial line of material fetching mechanism movable arm.The effect of belt extension arm is to make the belt on the conveying arm extend to the bucket wheel position, like this can simplified apparatus, reduce the bulk cargo airborne dust.
Described track travel mechanism is mainly by the track travel car, blanking barrel and turn table are formed, a thrust baring that horizontally rotates 23 is installed between track travel car 20 and the turn table 22, a pair of conveying arm bearing 24 is arranged on turn table, blanking barrel 21 is passed the central vertical of thrust baring and is installed, the afterbody of the corresponding conveying arm of upper shed, ground belt conveyor below the under shed respective carter walking car, side at the track travel car also has a pair of link 25 that articulates with the material loading trailer, the material loading trailer adopts prior art not describing in detail, as required, operator's compartment also can be installed on the turn table.
Described conveying arm mainly is made up of row frame and belt feeder, the head and the afterbody of row frame 26 respectively have a rotating shaft to be hinged on respectively on the conveying arm bearing of trailer coupling and track travel mechanism, belt feeder comprises belt 35, driving motor 28, belt tension device 29, belt head and afterbody bending roller 30 and 31, changed course cylinder 32 and belt idler pulley 33 in the middle of the belt, wherein, the strap end bending roller is installed in the rotating shaft of the frame afterbody of being expert at, belt drive electrical motor and this rotating shaft shaft coupling, belt tension device is installed the position of frame near afterbody of being expert at, belt head bending roller is installed in the head of belt extension arm, the rotating shaft both sides that the changed course cylinder is installed the frame head of being expert in the middle of the belt, the belt idler pulley follows frame and the belt extension arm is evenly arranged.
The driver behavior process of the towed bucket-wheel stacker reclaimer of the embodiment of the invention is pressed total power switch closure behind the start button as shown in Figure 6, and power light is bright, should monitor left and right sides crawler belt, belt, bucket wheel amperemeter/ammtr respectively in the operating process, does not answer running overload.
1. walking: the crawler travel car of present embodiment adopts electrical motor and variable-frequency control technique, operation left and right sides crawler belt switch, can control turning to and speed of left and right sides crawler belt respectively, push forward simultaneously or when falling back the position, the crawler travel car is walked forward or backward, and the crawler travel car is a semidiameter turn with two width of trackss when only promoting a switch.
2. get material: start the ground belt feeder in advance, the operation belt shipper is pushed get material level to and is put, belt on the conveying arm begins by trailer coupling to the direction running of track travel mechanism, operation bucket wheel starting switch, the running of bucket wheel motor drives bucket wheel, operation bucket wheel direction switch, the luffing angle of adjusting the bucket wheel movable arm by hydraulic ram makes bucket wheel begin to get material, operate the round operation that left and right sides crawler belt switch makes trailer coupling rule in the bulk cargo place again, carry out material extracting operation continuously.
3. windrow: dismantle material fetching mechanism and inclined chute in advance, articulate a material loading trailer in track travel mechanism one side.The operation belt shipper is pushed the windrow position to, belt on the conveying arm begins to be turned round to the trailer coupling direction by track travel mechanism, start the ground belt feeder and begin windrow, operate the round operation that left and right sides crawler belt switch makes trailer coupling rule in the bulk cargo place again, carry out the windrow operation continuously.

Claims (7)

1. handling method that is used for large-scale bulk cargo field, it is characterized in that: a conveying arm is connected across between a trailer coupling and the track travel mechanism, trailer coupling is universal walking in the bulk cargo place, track travel mechanism is pulled mechanism and the conveying arm traction is slided in orbit, gap bridge of building on track and ground belt feeder, trailer coupling can be crossed over this another bulk cargo place operation of passing a bridge, a material fetching mechanism is installed on the trailer coupling during material extracting operation, track travel mechanism articulates a material loading trailer during windrow operation, so the heap of forming, get material equipment and in the reached scope in bulk cargo place, carry out the bulk cargo loading and unloading operation:
A. material extracting operation: trailer coupling drives material fetching mechanism and comes and goes operation gets material in the bulk cargo place, and bulk cargo sequentially is transported in the track travel mechanism by conveying arm, transports by the ground belt feeder again;
B. windrow operation: bulk cargo is transported on the trailer coupling through ground belt feeder, material loading trailer and conveying arm, and trailer coupling comes and goes operation and carries out windrow in the bulk cargo place.
2. towed bucket-wheel stacker reclaimer that is used to implement the described handling method of claim 1, it is characterized in that it mainly is made up of trailer coupling, material fetching mechanism, conveying arm, belt extension arm and track travel mechanism, wherein, material fetching mechanism and belt extension arm are installed on the trailer coupling, one end and the trailer coupling of conveying arm are hinged, and the other end and track travel mechanism are hinged.
3. towed bucket-wheel stacker reclaimer according to claim 2, it is characterized in that described trailer coupling mainly is made up of crawler travel car, thrust baring and frame, wherein, the crawler travel car adopts direct motor drive, thrust baring that horizontally rotates of installation on the crawler travel car, connect a pair of middle hinge and a damping oil cylinder between the last plane of thrust baring and the frame, a pair of conveying arm bearing is arranged on frame, also has a pair of material fetching mechanism bearing, as required, operator's compartment can be installed on this frame.
4. towed bucket-wheel stacker reclaimer according to claim 2, it is characterized in that described material fetching mechanism mainly is made up of bucket wheel mechanism, movable arm and hydraulic ram, wherein, bucket wheel mechanism comprises bucket wheel and the inclined chute of installing at the driving motor and the opposite side of the installation of bucket wheel one side, bucket wheel mechanism is installed in the head of movable arm, material fetching mechanism bearing on the afterbody of movable arm and the trailer coupling frame is hinged, between the bottom of movable arm and the frame of trailer coupling hydraulic ram is installed.
5. towed bucket-wheel stacker reclaimer according to claim 2, the movable arm that it is characterized in that described belt extension arm and material fetching mechanism is installed side by side, the afterbody of belt extension arm also with the trailer coupling frame on the conveying arm bearing hinged, the jointed shaft of its jointed shaft and conveying arm is coaxial, and its axial line overlaps with the hinged axial line of material fetching mechanism movable arm.
6. towed bucket-wheel stacker reclaimer according to claim 2, it is characterized in that described track travel mechanism is mainly by the track travel car, blanking barrel and turn table are formed, a thrust baring that horizontally rotates is installed between track travel car and the turn table, a pair of conveying arm bearing is arranged on turn table, blanking barrel is passed the central vertical of thrust baring and is installed, the afterbody of the corresponding conveying arm of upper shed, ground belt conveyor below the under shed respective carter walking car, the side of mule carriage of being expert at also has a pair of link that articulates with the material loading trailer, as required, operator's compartment also can be installed on the turn table.
7. towed bucket-wheel stacker reclaimer according to claim 2, it is characterized in that described conveying arm mainly is made up of row frame and belt feeder, the head and the afterbody of row frame respectively have a rotating shaft to be installed in respectively on the conveying arm bearing of trailer coupling and track travel mechanism, belt feeder comprises belt, driving motor, belt tension device, belt head and afterbody bending roller, changed course cylinder and belt idler pulley in the middle of the belt, wherein, the strap end bending roller is installed in the rotating shaft of the frame afterbody of being expert at, belt drive electrical motor and this rotating shaft shaft coupling, belt tension device is installed the position of frame near afterbody of being expert at, belt head bending roller is installed in the head of belt extension arm, the changed course cylinder is installed in the rotating shaft of the frame head of being expert in the middle of the belt, and the belt idler pulley follows frame and the belt extension arm is evenly arranged.
CNB200310113433XA 2003-11-11 2003-11-11 Bulk material loading and anloading method and tracting bucket wheel material stacking and taking machine Expired - Fee Related CN100450902C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CNB200310113433XA CN100450902C (en) 2003-11-11 2003-11-11 Bulk material loading and anloading method and tracting bucket wheel material stacking and taking machine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CNB200310113433XA CN100450902C (en) 2003-11-11 2003-11-11 Bulk material loading and anloading method and tracting bucket wheel material stacking and taking machine

Publications (2)

Publication Number Publication Date
CN1616329A CN1616329A (en) 2005-05-18
CN100450902C true CN100450902C (en) 2009-01-14

Family

ID=34759942

Family Applications (1)

Application Number Title Priority Date Filing Date
CNB200310113433XA Expired - Fee Related CN100450902C (en) 2003-11-11 2003-11-11 Bulk material loading and anloading method and tracting bucket wheel material stacking and taking machine

Country Status (1)

Country Link
CN (1) CN100450902C (en)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101401526B (en) * 2008-08-07 2012-10-03 史彦昌 Self-propelled cultivation material pile tilling machine
CN102527484A (en) * 2012-02-07 2012-07-04 周杨 Circularly breaking and sieving system and method thereof
CN102718035B (en) * 2012-06-18 2015-01-14 华电重工股份有限公司 Reclaimer with self-releasing buffer bed
CN104192577B (en) * 2014-09-12 2016-06-08 泰富重工制造有限公司 A kind of bucket wheel stop gauge of bucket-wheel stacker reclaimer
CN104444236B (en) * 2014-09-28 2016-06-08 广东电网有限责任公司电力科学研究院 Coal yard suppresses the apparatus and method of airborne dust and low-temperature oxidation
CN106436742A (en) * 2016-08-30 2017-02-22 王振宁 Improved pouring draught fan foundation pit
CN109835729A (en) * 2017-11-29 2019-06-04 中冶宝钢技术服务有限公司 A method of material accumulation is carried out using stacker-reclaimer

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4018323A (en) * 1975-06-19 1977-04-19 Schultz Edward D Backstacking apparatus
EP0093637A1 (en) * 1982-05-04 1983-11-09 FIVES-CAIL BABCOCK, Société anonyme Apparatus for piling and unpiling bulk materials
US4549648A (en) * 1982-03-04 1985-10-29 Fried. Krupp Gesellschaft Mit Beschrankter Haftung Bucket-wheel loader for bulk material piles
DE4243240A1 (en) * 1992-12-19 1994-06-23 Pwh Anlagen & Systeme Gmbh Stacking method for loose goods, e.g. coal, onto tip
CN2214401Y (en) * 1994-02-25 1995-12-06 马奎山 Contilever bucket-wheel stocker and feeder
CN2382696Y (en) * 1998-11-30 2000-06-14 大重集团公司(大连) Telescopic lift tail car of bucket wheel pile material taking machine
CN1442353A (en) * 2002-03-01 2003-09-17 李晓亮 Front arm frame multi point tensional bucket wheel loader

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4018323A (en) * 1975-06-19 1977-04-19 Schultz Edward D Backstacking apparatus
US4549648A (en) * 1982-03-04 1985-10-29 Fried. Krupp Gesellschaft Mit Beschrankter Haftung Bucket-wheel loader for bulk material piles
EP0093637A1 (en) * 1982-05-04 1983-11-09 FIVES-CAIL BABCOCK, Société anonyme Apparatus for piling and unpiling bulk materials
DE4243240A1 (en) * 1992-12-19 1994-06-23 Pwh Anlagen & Systeme Gmbh Stacking method for loose goods, e.g. coal, onto tip
CN2214401Y (en) * 1994-02-25 1995-12-06 马奎山 Contilever bucket-wheel stocker and feeder
CN2382696Y (en) * 1998-11-30 2000-06-14 大重集团公司(大连) Telescopic lift tail car of bucket wheel pile material taking machine
CN1442353A (en) * 2002-03-01 2003-09-17 李晓亮 Front arm frame multi point tensional bucket wheel loader

Also Published As

Publication number Publication date
CN1616329A (en) 2005-05-18

Similar Documents

Publication Publication Date Title
CN100450902C (en) Bulk material loading and anloading method and tracting bucket wheel material stacking and taking machine
CN201567169U (en) Parallel four bar linkage mechanism arm frame balance crane
CN102502277A (en) Two-way conveying and two-way rotation material piling and taking system
CN104291121A (en) Bulk cargo gathering device, bulk cargo car loader and loading method
CN103410531A (en) Duct piece reshipment device for shield tunnel
CN204777729U (en) Stocker
CN205739513U (en) A kind of crawler type rehandling facilities
CN204872930U (en) Take gate -type scraper blade reclaimer of windrow arm
CN101746608A (en) Large-span portal type scraper reclaimer
CN209740233U (en) Chain type lifting material pouring machine
CN102514945A (en) Semi-portal scraper reclaimer
CN202492198U (en) Semi-gate-type scraper-blade material-taking machine
CN2043614U (en) Light feeder for bulk materials
CN2134381Y (en) Spiral unloader
CN205060988U (en) Gate -type stacker -reclaimer
CN201420274Y (en) Digging-loading conveyer
CN201313749Y (en) Large-span portal scraper reclaimer
CN210944011U (en) Tower type tire moving ship loader
CN2553602Y (en) Electric multifunction turn-over, transporting machine
CN202417504U (en) Material loading machine
CN1025780C (en) Helical unloading machine
CN212317990U (en) Comprehensive continuous coal mining system for open pit mine
CN209337520U (en) A kind of mechanical transmission device with high stability
CN2723395Y (en) Opening mechanism for tunnel tunneling loader material bucket
CN104876035A (en) Stacker

Legal Events

Date Code Title Description
PB01 Publication
C06 Publication
SE01 Entry into force of request for substantive examination
C10 Entry into substantive examination
GR01 Patent grant
C14 Grant of patent or utility model
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20090114

Termination date: 20111111

C17 Cessation of patent right