CN102935664A - Portal frame diamond string bead wire gang saw - Google Patents
Portal frame diamond string bead wire gang saw Download PDFInfo
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- CN102935664A CN102935664A CN2012104259694A CN201210425969A CN102935664A CN 102935664 A CN102935664 A CN 102935664A CN 2012104259694 A CN2012104259694 A CN 2012104259694A CN 201210425969 A CN201210425969 A CN 201210425969A CN 102935664 A CN102935664 A CN 102935664A
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Abstract
The invention relates to a portal frame diamond string bead wire gang saw for sawing stones. The portal frame diamond string bead wire gang saw comprises a portal frame, an elevator mechanism, a gang saw operating mechanism, a tensioning mechanism, a water supply cooling mechanism, a quarry stone vehicle and a plurality of diamond string bead wires, the elevator mechanism is arranged on the portal frame, and the diamond string bead wires are supported in wheel grooves of a drive wheel, a first supporting wheel and a second supporting wheel of the gang saw operating mechanism and wheel grooves of a tensioning wheel of the tensioning mechanism in a closed annular mode to be tensioned by the tensioning wheel to form the diamond string bead wire gang saw. According to the portal frame diamond string bead wire gang saw, the elevator mechanism drives the gang saw operating mechanism to ascend and descend on an upright column of the frame to descend and ascend the saw, the diamond string bead wires can move in a one-way and high speed linear mode through the gang saw operating mechanism so as to cut and abrade granite to achieve sawing for plates. The portal frame diamond string bead wire gang saw has the advantages that the operation is convenient, the sawing efficiency is high, the sawing quality is good, saw blade replacement times are few, the adjustment and alignment are simple and convenient, the environmental pollution is small, and the production cost is low.
Description
Technical field
The present invention relates to a kind of by the used machinery of the material of sawing stone or similar stone, especially a kind of portal frame diamond bead string rope gang saw.
Background technology
We know that granite in slab is natural, famous and precious building and ornament materials.At present, traditional sawing machinery of domestic granite in slab mainly is circular saw and sand saw, and circular saw is subjected to the restriction of saw blade diameter, is mainly used to the little sheet material of saw cutting plate face.The sand saw is that famine is expected that sawing becomes the capital equipment of large-sized plates material, mainly be by saw frame, connecting rod, column frame, the steel band saw blade, power, lifting, waste truck, for the sand system, the mortar spray, the saw blade tensioning, the mechanism such as automatically controlled and basic and parts form, move back and forth under the drive of steel band saw blade by actuating unit and connecting rod, cooperate with saw blade through the mortar spraying mechanism, the steel band saw blade is driven about particle diameter 1mm1, thick steel sand reciprocating forced with corner angle impacts, Grinding of Granite, realize gradually sawing, in grinding, drive its saw that falls by elevating mechanism, its saw speed that falls is generally about 3cm/h, the waste material of sawing 2-3 piece will be changed saw blade, there is but cutting-rate is low, sawing quality is poor, saw blade is changed frequent, the long deficiency of collating time after changing.In addition, it also needs the special mortar spraying mechanism of a cover, exists complex structure, environmental pollution is large, production cost is high defective.
And diamond bead rope saw machine has been applied in mine rock material exploitation and the shaping of waste material in recent years.For example, by the applicant application and on August 31st, 2005 disclosed CN2721363Y Chinese utility model patent specification disclosed " a kind of diamond-wire saw ", can be widely used in the exploitation of stone of opencut.This has provided prompting for diamond bead string rope is applied to the sawing of large-sized plates material.
Summary of the invention
Have in order to overcome the used sand saw of large-sized plates material sawing in the prior art that cutting-rate is low, sawing quality is poor, saw blade change frequent, change the long and complex structure of collating time, environmental pollution is large, production cost is high deficiency, the invention provides a kind of easy to operate, cutting-rate is high, sawing quality good, saw blade is changed the portal frame diamond bead string rope gang saw that number of times is few, adjustment is easy, environmental pollution is little, production cost is low.
The technical scheme that technical solution problem of the present invention adopts is: a kind of portal frame diamond bead string rope gang saw, it comprises framework, elevating mechanism, the gang saw works, strainer, for water-cooled body, waste truck and some diamond bead string ropes, described framework is by the first column, the second column and one is connected to the portal frame of the crossbeam composition on the first column and the second column top, described waste truck is arranged between the first column and the second column, guide rail by material platform and supporting material table forms, described material platform is driven mobile on guide rail by external force, it is characterized in that:
Described elevating mechanism, it comprises lifting motor and the reductor that is assemblied on this lifting motor output, the two ends of the output shafts of described reductor respectively and first, second elevating screw corresponding through first, second reverse drive gear are in transmission connection, on this first, second elevating screw respectively corresponding matching first, second lifting nut is arranged, this first, second lifting nut respectively correspondence is fixedly connected with first, second leading truck, this first, second leading truck through guideway respectively correspondence be sleeved on described first, second column;
Described gang saw works, it comprises drive motors, driving wheel, the first support wheel, the second support wheel, first saw rest and second saw rest that falls that falls, this is first years old, second falls saw rest difference correspondence with described first, the second leading truck is fixedly connected with, described driving wheel is assemblied in the described first bottom that falls saw rest through wheel shaft, described drive motors is installed on described the first leading truck, this drive motors is through transmission device, the wheel shaft of driving wheel drives driving wheel and rotates, described the first support wheel, the second support wheel is by upper, upper/lower positions rotates and to be assemblied in described second and to fall on the saw rest described driving wheel, the corresponding parallel race that has more than 1 or 1 respectively on the first support wheel and the second support wheel;
Described strainer, it comprises a regulating wheel and a hydraulic tensioning cylinder, this regulating wheel is supported on the described first top that falls saw rest through hydraulic tensioning cylinder, at the corresponding parallel race that has more than 1 or 1 with driving wheel on the regulating wheel;
Described for water-cooled body, it comprises a supply-water pump and several water spouts that are connected with supply-water pump, the described diamond bead string rope of described water spout spraying cooling;
Described driving wheel, regulating wheel, the first support wheel and the second support wheel are arranged in parallel, described diamond bead string rope closed ring is supported in the race of driving wheel, regulating wheel, the first support wheel and the second support wheel, and consists of the diamond bead string rope gang saw by the regulating wheel tensioning under the effect of hydraulic tensioning cylinder.
Described strainer, it also comprises single rope hydraulic tensioning cylinder that some single rope regulating wheels are corresponding with some and single rope regulating wheel, described single rope regulating wheel is supported on described first through single rope regulating wheel and falls saw rest or/and second fall on the saw rest, and each single rope regulating wheel is by corresponding each diamond bead string rope of tensioning of single rope hydraulic tensioning cylinder effect of correspondence.
At described first saw rest assembling one locating wheel that falls, at the corresponding parallel race that has more than 1 or 1 with driving wheel on this locating wheel, this locating wheel and described driving wheel subtend support described diamond bead string rope.
Be symmetrically installed with respectively the first directive wheel, the second directive wheel in described first the fall lower inside of saw rest of saw rest, second that falls, the corresponding parallel race that has more than 1 or 1 with driving wheel on the first directive wheel, the second directive wheel, described diamond bead string rope is corresponding to be imported in the corresponding race.
Be connected with respectively the first inclined strut, the second inclined strut on the first column of described framework, the second column, described the first inclined strut and the first column, the second inclined strut and the second column consist of angular structure.
The present invention drives the lifting on the column of framework of gang saw works by the elevating mechanism that is arranged on the portal frame, the diamond bead string rope closed ring is supported in the race of regulating wheel of driving wheel, the first support wheel, the second support wheel and strainer of gang saw works, and consists of the diamond bead string rope gang saw by the regulating wheel tensioning.Compared with prior art, the present invention has following beneficial effect:
1, drive motors of the present invention drives the driving wheel rotation through the wheel shaft of transmission device, driving wheel, frictional force makes diamond bead string rope produce the high-speed linear motion of single direction, record through experiment: its diamond bead string rope running speed is 30-40m/s, the saw speed that falls is about 30cm/h, improves about 10 times than traditional sand saw cutting-rate;
2, the present invention relies on particle diameter on the diamond bead string rope to only have tens orders, the unidirectional cutting of diamond high speed, abrasion granite that particle is thinner to realize sawing, the sawing surface of sheet material is more smooth, sawing quality is good, has reduced the operations such as follow-up correction, corase grind;
3, the present invention just changes diamond bead string rope one time at the waste material of sawing 15-20 piece, and it is few that its saw blade is changed number of times; Diamond bead string rope after the replacing only needs to be got final product by the preset pressure tensioning by hydraulic tensioning cylinder through regulating wheel, and its adjustment is convenient;
4, the present invention need not use the mortar spraying mechanism, and work simplification is easy to operate; The present invention only need adopt recirculated water diamond bead to be cooled off and washes away stone flour under the sawing, has reduced the steel scrap sand of mortar spraying mechanism, the processing of lime, and environmental pollution is little, production cost is low.
Description of drawings
The present invention will be further described below in conjunction with drawings and Examples.
Fig. 1 is a kind of structural front view of the present invention;
Fig. 2 is the right view of Fig. 1;
Fig. 3 is the left view of Fig. 1.
Among the figure: 1. framework, 101. first columns, 102. second columns, 103. crossbeams, 104. first inclined struts, 105. second inclined struts;
2. elevating mechanism, 201. lifting motor, 202. reductors, 203. output shafts, 204. the first reverse drive gear, 205. the first elevating screw, 206. second reverse drive gears, 207. second elevating screws, 208. the first lifting nut, 209. the first leading truck, 2010. second lifting nuts, 2011. second leading trucks;
3. strainer, 301. regulating wheels, 302. hydraulic tensioning cylinders, 303. single rope regulating wheels, 304. single rope hydraulic tensioning cylinders;
4. gang saw works, 401. drive motors, 402. driving wheels, 403. first support wheels, 404. second support wheels, 405. first saw rests that fall, 406. second saw rests that fall, 407. locating wheels, 408. first directive wheels, 409. second directive wheels;
5. supply water-cooled body, 501. supply-water pumps, 502. water spouts;
6. waste truck, 601. material platforms, 602. guide rails;
7. diamond bead string rope.
The specific embodiment
In Fig. 1, Fig. 3, a kind of portal frame diamond bead string rope gang saw, it comprises framework 1, elevating mechanism 2, strainer 3, gang saw works 4, supplies water-cooled body 5, waste truck 6 and some diamond bead string ropes 7.
In Fig. 1, framework 1 is connected to the portal frame that the crossbeam 103 on the first column 101 and the second column 102 tops forms by the first column 101, the second column 102 and.
In order to ensure stable working of the present invention, friction in Fig. 2, is connected with the first inclined strut 104, the first inclined struts 104 and the first column 101 consists of angular structures at the two ends of the first column 101 of framework through link.Equally, in Fig. 3, be connected with through link at the two ends of the second column 102 that the second inclined strut 105, the second inclined struts 105 and the second column 102 are same to consist of firm angular structure.
In Fig. 1, waste truck 6 is arranged between the first column 101 and the second column 102.As shown in Figure 1, waste truck 6 is comprised of the guide rail 602 of material platform 601 and supporting material table.Material platform 601 is used for placing waste material, is to adopt steel to be welded.Material platform 601 is driven mobile on guide rail 602 by external force, the famine material is sent into station or the sheet material that forms after the sawing is shifted out station.This external force can be to be assemblied in motor and the decelerator driving force that produce of material on the platform, also artificial external force.
In Fig. 1, elevating mechanism 2 comprises lifting motor 201 and is assemblied in reductor 202 on this lifting motor output, an end of the output shafts 203 of reductor through the first reverse drive gear 204 and the first elevating screw 205 be in transmission connection, the other end is in transmission connection through the second reverse drive gear 206 and the second elevating screw 207.The first reverse drive gear 204, the second reverse drive gear 206 can adopt Worm-gear type communtation deceleration device, also can adopt bevel gear type communtation deceleration device.As shown in fig. 1, present embodiment adopts bevel gear type communtation deceleration device.
In Fig. 2, be combined with the first lifting nut 208 at the first screw mandrel 205, this first lifting nut 208 is fixedly connected on the first leading truck 209, and the first leading truck 209 is sleeved on the first column 101 through guideway.
In Fig. 3, be combined with the second lifting nut 2010 at the second screw mandrel 207, this second lifting nut 2010 is fixedly connected on the second leading truck 2011, and the second leading truck 2011 is sleeved on the second column 102 through guideway.
The first leading truck 209 and the second leading truck 2011 drive reductors 202 through output shafts 203, corresponding reverse drive gear, screw mandrel, nut drive, synchronization lifting on each self-corresponding column by lifting motor 201.
In Fig. 1, Fig. 2, Fig. 3, gang saw works 4 comprises drive motors 401, driving wheel 402, the first support wheel 403, the second support wheel 404, first saw rest 405 and second saw rest 406 that falls that falls.
In Fig. 2, first saw rest 405 that falls is fixedly connected with and a cantilever design with the first leading truck 209.Drive motors 401 is installed on the first leading truck 209, driving wheel 402 rotates through its wheel shaft and is assemblied in the first bottom that falls saw rest 405, drive motors 401 is realized driving driving wheel 402 and is rotated through belt driver or other transmission devices commonly used and the wheel shaft driving coupling of driving wheel 402.
In Fig. 3, second saw rest 406 that falls is fixedly connected with and a cantilever design with the second leading truck 2011.The first support wheel 403, the second support wheel 404 rotate by the upper and lower position and are assemblied in second and fall on the saw rest 406.The first support wheel 403, the second support wheel 404 can freely dally respectively.
Such as Fig. 2, shown in Figure 3, the corresponding parallel race that has respectively on driving wheel 402, the first support wheel 403 and the second support wheel 404.The number of race is by the length of wheel and need the situation such as sheet metal thickness of sawing and decide, and the race number of present embodiment is eight.
In Fig. 1, strainer 3 comprises a regulating wheel 301 and a hydraulic tensioning cylinder 302.
Regulating wheel 301 is supported on the first top that falls saw rest 405 through hydraulic tensioning cylinder 302.It is that cylinder body and first with hydraulic tensioning cylinder 302 saw rest 405 that falls is fixedly connected with, and the piston of hydraulic tensioning cylinder 302 is rotationally connected through crotch and regulating wheel 301.
As shown in Figure 2, same parallel eight races that have on regulating wheel 301, this race is corresponding with the race on the driving wheel 402.
In Fig. 3, comprise a supply-water pump 501, the water spout 502 that is connected with supply-water pump 501 for water-cooled body 5, water spout 502 is spraying cooling diamond bead string ropes, and its number is decided by operating mode, and present embodiment adopts three.
Such as Fig. 1, Fig. 2, shown in Figure 3, driving wheel 402, regulating wheel 301, the first support wheel 403 and the second support wheel 404 are arranged in parallel.Article eight, diamond bead string rope 7 closed rings are supported in the race of driving wheel 402, regulating wheel 301, the first support wheel 403 and the second support wheel 404, and consist of the diamond bead string rope gang saw by regulating wheel 301 tensionings under the effect of hydraulic tensioning cylinder 302.
Diamond bead string rope 7 is to drive driving wheel 402 rotations and the high-speed linear motion of generation single direction by drive motors 401 through the wheel shaft of transmission device, driving wheel, and unidirectional cutting, abrasion granite are realized the sawing of sheet material.
When working, the present invention also can put into by change the diamond bead string rope of race, the convenient thickness of adjusting required sawing sheet material.
In order to make each diamond bead string rope keep continual pre-tension, and the tensile force that each diamond bead string rope of auto-compensation produces because of elongation in sawing process reduces, such as Fig. 1, Fig. 2, shown in Figure 3, it also comprises eight single rope hydraulic tensioning cylinders 304 that single rope regulating wheel 303 is corresponding with eight strainer of present embodiment 3.
Single rope regulating wheel 303 is supported on first through single rope regulating wheel 304 and falls saw rest 405 or/and second fall on the saw rest 406, and its rigging position will be decided by the frock position.In Fig. 1, Fig. 2, Fig. 3, present embodiment is list rope regulating wheel 303 and single rope regulating wheel 304 to be staggered by four or four symmetries, interval be assemblied in first saw rest 405 and second that falls and fall on the saw rest 406.Each single rope regulating wheel 303 is by corresponding separately each diamond bead string rope 7 of tensioning of single rope hydraulic tensioning cylinder 304 effects of correspondence.
In order to guarantee that diamond bead string rope 7 accurately imports the race of driving wheel 402, the reliability of raising work, at first saw rest 405 assembling one locating wheel 407 that falls, same parallelly on locating wheel 407 have eight wheel races, and this race is corresponding with the race on the driving wheel.Diamond bead string rope 7 imports the race of this locating wheel 407, supports diamond bead string rope 7 with driving wheel 402 subtends.
In order to improve sawing reliability and sawing quality, prevent that diamond bead string rope 7 from producing skew when sawing, as shown in Figure 1, be symmetrically installed with respectively the first directive wheel 408, the second directive wheel 409 in first the fall lower inside of saw rest 406 of saw rest 405, second that falls, all parallelly on the first directive wheel 408, the second directive wheel 409 have eight races, diamond bead string rope 7 corresponding importings in the corresponding race.
The first directive wheel 408, the second directive wheel 409 can adopt single-wheel press-down type structure, also can adopt the Double-wheel gripped structure.What as shown in Figure 1, present embodiment adopted is the Double-wheel gripped structure.
Reasonable in design of the present invention, easy to operate, cutting-rate is high, sawing quality good, saw blade changes that number of times is few, adjustment is simple and efficient, environmental pollution is little, production cost is low, is a kind of desirable granite in slab sawing machinery.
Claims (5)
1. portal frame diamond bead string rope gang saw, it comprises framework, elevating mechanism, gang saw works, strainer, supplies water-cooled body, waste truck and some diamond bead string ropes, described framework is connected to the portal frame that the crossbeam on the first column and the second column top forms by the first column, the second column and, described waste truck is arranged between the first column and the second column, guide rail by material platform and supporting material table forms, described material platform is driven mobile on guide rail by external force, it is characterized in that:
Described elevating mechanism, it comprises lifting motor and the reductor that is assemblied on this lifting motor output, the two ends of the output shafts of described reductor respectively and first, second elevating screw corresponding through first, second reverse drive gear are in transmission connection, on this first, second elevating screw respectively corresponding matching first, second lifting nut is arranged, this first, second lifting nut respectively correspondence is fixedly connected with first, second leading truck, this first, second leading truck through guideway respectively correspondence be sleeved on described first, second column;
Described gang saw works, it comprises drive motors, driving wheel, the first support wheel, the second support wheel, first saw rest and second saw rest that falls that falls, this is first years old, second falls saw rest difference correspondence with described first, the second leading truck is fixedly connected with, described driving wheel is assemblied in the described first bottom that falls saw rest through wheel shaft, described drive motors is installed on described the first leading truck, this drive motors is through transmission device, the wheel shaft of driving wheel drives driving wheel and rotates, described the first support wheel, the second support wheel is by upper, upper/lower positions rotates and to be assemblied in described second and to fall on the saw rest described driving wheel, the corresponding parallel race that has more than 1 or 1 respectively on the first support wheel and the second support wheel;
Described strainer, it comprises a regulating wheel and a hydraulic tensioning cylinder, this regulating wheel is supported on the described first top that falls saw rest through hydraulic tensioning cylinder, at the corresponding parallel race that has more than 1 or 1 with driving wheel on the regulating wheel;
Described for water-cooled body, it comprises a supply-water pump and several water spouts that are connected with supply-water pump, the described diamond bead string rope of described water spout spraying cooling;
Described driving wheel, regulating wheel, the first support wheel and the second support wheel are arranged in parallel, described diamond bead string rope closed ring is supported in the race of driving wheel, regulating wheel, the first support wheel and the second support wheel, and consists of the diamond bead string rope gang saw by the regulating wheel tensioning under the effect of hydraulic tensioning cylinder.
2. a kind of portal frame diamond bead string rope gang saw according to claim 1, it is characterized in that: described strainer, it also comprises single rope hydraulic tensioning cylinder that some single rope regulating wheels are corresponding with some and single rope regulating wheel, described single rope regulating wheel is supported on described first through single rope regulating wheel and falls saw rest or/and second fall on the saw rest, and each single rope regulating wheel is by corresponding each diamond bead string rope of tensioning of single rope hydraulic tensioning cylinder effect of correspondence.
3. a kind of portal frame diamond bead string rope gang saw according to claim 1, it is characterized in that: at described first saw rest assembling one locating wheel that falls, at the corresponding parallel race that has more than 1 or 1 with driving wheel on this locating wheel, this locating wheel and described driving wheel subtend support described diamond bead string rope.
4. a kind of portal frame diamond bead string rope gang saw according to claim 1, it is characterized in that: be symmetrically installed with respectively the first directive wheel, the second directive wheel in described first the fall lower inside of saw rest of saw rest, second that falls, the corresponding parallel race that has more than 1 or 1 with driving wheel on the first directive wheel, the second directive wheel, described diamond bead string rope is corresponding to be imported in the corresponding race.
5. according to claim 1 and 2 or 3 or 4 described a kind of portal frame diamond bead string rope gang saws, it is characterized in that: be connected with respectively the first inclined strut, the second inclined strut on the first column of described framework, the second column, described the first inclined strut and the first column, the second inclined strut and the second column consist of angular structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012104259694A CN102935664A (en) | 2012-10-31 | 2012-10-31 | Portal frame diamond string bead wire gang saw |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012104259694A CN102935664A (en) | 2012-10-31 | 2012-10-31 | Portal frame diamond string bead wire gang saw |
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| CN102935664A true CN102935664A (en) | 2013-02-20 |
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| CN2012104259694A Pending CN102935664A (en) | 2012-10-31 | 2012-10-31 | Portal frame diamond string bead wire gang saw |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105798381A (en) * | 2016-05-12 | 2016-07-27 | 昆明奥通达铁路机械有限公司 | Electric rail sawing machine |
| CN106166803A (en) * | 2016-08-31 | 2016-11-30 | 荣成中磊石材有限公司 | A kind of rope saw guider |
| CN108437243A (en) * | 2018-03-16 | 2018-08-24 | 福州天瑞线锯科技有限公司 | A kind of multistation ring wire saw cutting machine |
| CN108481571A (en) * | 2018-06-01 | 2018-09-04 | 福建省霞浦县众源机械有限公司 | Multigroup rope saw and its control method |
| CN108748710A (en) * | 2018-08-10 | 2018-11-06 | 华侨大学 | A kind of rope saw |
| CN110370469A (en) * | 2019-07-25 | 2019-10-25 | 中铁隧道集团四处有限公司 | Intelligent concrete cuts trolley |
| CN110587027A (en) * | 2019-10-12 | 2019-12-20 | 徐州申工金属科技有限公司 | Dead head wire cutting equipment |
| CN117047192A (en) * | 2023-10-09 | 2023-11-14 | 成都易德莱斯科技有限公司 | Rope sawing machine for pipeline cutting |
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Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105798381A (en) * | 2016-05-12 | 2016-07-27 | 昆明奥通达铁路机械有限公司 | Electric rail sawing machine |
| CN106166803A (en) * | 2016-08-31 | 2016-11-30 | 荣成中磊石材有限公司 | A kind of rope saw guider |
| CN108437243A (en) * | 2018-03-16 | 2018-08-24 | 福州天瑞线锯科技有限公司 | A kind of multistation ring wire saw cutting machine |
| CN108437243B (en) * | 2018-03-16 | 2023-12-29 | 福州天瑞线锯科技有限公司 | Multi-station annular wire saw cutting machine |
| CN108481571A (en) * | 2018-06-01 | 2018-09-04 | 福建省霞浦县众源机械有限公司 | Multigroup rope saw and its control method |
| CN108481571B (en) * | 2018-06-01 | 2023-10-27 | 福建省霞浦县众源机械有限公司 | Multi-group wire saw machine and control method thereof |
| CN108748710A (en) * | 2018-08-10 | 2018-11-06 | 华侨大学 | A kind of rope saw |
| CN110370469A (en) * | 2019-07-25 | 2019-10-25 | 中铁隧道集团四处有限公司 | Intelligent concrete cuts trolley |
| CN110370469B (en) * | 2019-07-25 | 2024-02-09 | 中铁隧道集团四处有限公司 | Intelligent concrete cutting trolley |
| CN110587027A (en) * | 2019-10-12 | 2019-12-20 | 徐州申工金属科技有限公司 | Dead head wire cutting equipment |
| CN117047192A (en) * | 2023-10-09 | 2023-11-14 | 成都易德莱斯科技有限公司 | Rope sawing machine for pipeline cutting |
| CN117047192B (en) * | 2023-10-09 | 2023-12-29 | 成都易德莱斯科技有限公司 | Rope sawing machine for pipeline cutting |
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Application publication date: 20130220 |