CN101319484B - Spreader and its material guiding apparatus - Google Patents
Spreader and its material guiding apparatus Download PDFInfo
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- CN101319484B CN101319484B CN2008100997518A CN200810099751A CN101319484B CN 101319484 B CN101319484 B CN 101319484B CN 2008100997518 A CN2008100997518 A CN 2008100997518A CN 200810099751 A CN200810099751 A CN 200810099751A CN 101319484 B CN101319484 B CN 101319484B
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Abstract
The invention discloses a material guiding device for a spreading machine, comprising a mounting support, a guide sleeve, a slide pole and a material guiding plate, wherein the mounting support is fixed on the upper part of an ironing plate of a mechanical assembled section and extended forward, the front part of the mounting support is fixedly connected with the hollow guide sleeve, the shaft line of which is in parallel to the telescopic direction of the telescopic ironing plate; the slide pole passes through the hollow part of the guide sleeve; the material guiding plate extending downward is fixed on the slide pole; outer sides of the material guiding plate and/or the slide pole are fixed on a side baffle plate of the telescopic ironing plate; when the telescopic ironing plate makes the telescopic motion, the side baffle plate of the telescopic ironing plate drives the slide pole to move in the guide sleeve, so that the material guiding plate makes the synchronous telescopic motion along with the telescopic ironing plate. The material guiding device can adapt to the requirement of the telescopic ironing plate in length at any moment and provide a suitable front batch bin for the telescopic ironing plate, thereby completely resolving the problem that the front batch bin of the telescopic ironing plate is too wide; meanwhile, the invention also provides a spreading machine using the material guiding device for the spreading machine.
Description
Technical field
The present invention relates to paver, especially a kind of paver material guide device.The present invention provides a kind of paver that uses above-mentioned material guide device simultaneously.
Background technology
Paver is a kind of engineering truck that is used for construction of the highway.During paver work, Yi Bian travel forward, Yi Bian pass through its hopper spreading compound earthward, the screed behind the hopper then presses these compounds, by above-mentioned continuous action, finishes the pavement spread operation.
In different construction occasions, the width of roadway of required laying also can there are differences, and the working width of paver need adapt to the width of roadway of required laying.For this reason, the screed of paver comprises several screeds that cooperatively interact such as main screed, mechanical assembly unit section screed and freely-moving mangle.Main screed is positioned at the centre position on the paver width, and make peace the greatly body width of paver of its width is identical; Described mechanical assembly unit section screed is placed in the left and right sides of described main screed by mechanical means, and it is located along the same line with described main screed on the fore-and-aft direction of paver motion.Make the working width of paver obtain to stretch.This machinery assembly unit section screed obtains the stretching, extension width of different length by the mode that increases regular length piecemeal, therefore, only can not obtain the continually varying paving width by mechanical assembly unit section screed.For this reason, paver also is provided with freely-moving mangle.Freely-moving mangle adopts hydraulic control, and its flexible width can be adjusted continuously.Freely-moving mangle is arranged on the rear portion of described mechanical assembly unit section screed, can stretch out to mechanical assembly unit section screed outer fix.Because its its telescopic variation is controlled by hydraulic jack, has continuity, therefore, by the continuous adjusting of this freely-moving mangle acquisition to paver construction width.
Although satisfied the demand that paver construction width is regulated continuously, but in this structure, freely-moving mangle is positioned at the rear side of pin-connected panel master screed, the shelves flitch distance of the screw distribution of range forward is greater than main screed and mechanical assembly unit section screed, make the hopper of freely-moving mangle front portion wide, caused many problems.
It at first is influence to the construction that paves.During construction, owing to hopper before the freely-moving mangle is wide, it is smooth defeated material to occur at this place's spiral distributor, this place's compound overheap, too high, so that the material on stockpile top is mobile, forms cold burden, causes the mixture segregation that paves; In addition,, make freely-moving mangle produce distortion such as hind wing because of resistance is excessive in when construction, influence the paving concrete pavement quality because of stockpile height before the freely-moving mangle.
Next is the influence to freely-moving mangle work itself.Freely-moving mangle is positioned at mechanical assembly unit section screed outer end; when freely-moving mangle needs bigger withdrawal stroke in construction; because this place's hopper compound is piled up higher; freely-moving mangle is toward when retraction; stockpile regular meeting stops the side guard of freely-moving mangle, and it can't normally be withdrawn, and has to shut down the artificial buildup of removing in back; this can influence construction quality and progress, and increases working strength of workers.
Owing to the wide problem that causes of the anterior hopper of freely-moving mangle, prior art has been taked some measures for above.
Present a kind of major measure is that the multistage solid stock guide is installed in mechanical assembly unit section screed end, promptly be equivalent to have two deflector chutes that separate in the freely-moving mangle front portion, make stockpile be unlikely to too high, can improve the not smooth problem of the defeated material that only relies on the screw distribution device to cause to a certain extent.But this solid stock guide has influenced the flexible stroke of freely-moving mangle, and is big when the paving concrete pavement wide variety, when needing freely-moving mangle to carry out big stroke withdrawal, need to remove fixedly material guide device.And fixedly the length of material guide device is fixed, and can't realize the continuity of wide variety, and this certainly will cause the problem that can't adapt to freely-moving mangle length in some construction occasions, makes freely-moving mangle still partly have the wide problem of anterior hopper.
Summary of the invention
At above-mentioned defective, the technical problem that the present invention solves is that a kind of paver material guide device is provided, and this material guide device can shorten the hopper width of freely-moving mangle front portion, and can adapt to the stretching, extension width of described paver material guide device at any time.The present invention provides a kind of paver with above-mentioned material guide device simultaneously.
The invention provides a kind of paver material guide device, comprise erection support, guide pin bushing, traveller, stock guide; Described erection support is fixed on mechanical assembly unit section screed top and stretches out forward, and the described guide pin bushing of its anterior fixedly connected hollow, the axis of this guide pin bushing are parallel to the flexible direction of freely-moving mangle; Described traveller passes from the cavity of this guide pin bushing; Described stock guide below fixedly stretching on this traveller; The outboard end of described stock guide and/or traveller and freely-moving mangle side guard are fixed; When the freely-moving mangle stretching motion, drive described traveller by this freely-moving mangle side guard and in guide pin bushing, move, thereby make described stock guide stretching and synchronization telescope along with freely-moving mangle;
Described stock guide comprises stock guide body, lifter plate, screw rod, slide block, rocking handle, limited block; Described stock guide body comprises left and right side plate and forward and backward plate, and surrounds the cavity that the bottom has opening; Wherein left and right side plate and described traveller are fixed; Described limited block is fixed on the stock guide body, and screw rod vertically passes limited block and stock guide body, and described screw rod upper end is connected with and is positioned at this external rocking handle of stock guide; Described slide block cooperates with this screw rod, and is fixed with described lifter plate on this slide block; Described stock guide body is stretched out in this lifter plate bottom, and described lifter plate lower surface forms the lower edge of this material guide device; By rotation crank, can make the rotation of described screw rod and slide block is slided up and down, drive described lifter plate and rise or descend, regulating the guide gap of this material guide device bottom, thus material stack height before the control freely-moving mangle.
Preferably, described erection support comprises two fixed heads and two supports that are connected with fixed head respectively, two fixed heads are installed on the expansion pedestal by bolt, described support stretches out forward, the two stands front end is the annular of hollow, and fixes by the both ends of the surface of flange and described guide pin bushing respectively.
Preferably, on the described guide pin bushing lubricating cup that is used for apply oil in guide pin bushing is installed.
Preferably, when stock guide was withdrawn, the front surface of its rear surface and mechanical assembly unit section screed was fitted substantially.
Preferably, described screw rod is installed in the horizontal centre position of described stock guide body.
Preferably, the outboard end of described stock guide and freely-moving mangle side guard are fixed, and the side plate of an end in the outer part that specifically is described stock guide body is by on the side guard that is bolted to freely-moving mangle.
Preferably, described biside plate and described traveller are connected to one, and its concrete mode is that the two ends of described traveller are connected with the biside plate of bolt with described stock guide body by flange.
The present invention also provides a kind of paver, and corresponding its freely-moving mangle is fixed with above-mentioned material guide device on the mechanical assembly unit section screed at its two ends, left and right sides.
Compared with prior art, paver material guide device provided by the invention is on the basis of original material guide device, the material guide device that a kind of hopper that increases for paver can stretch.The stock guide outer panel of this material guide device is fixed on the outer panel of freely-moving mangle, and the traveller acquisition that this stock guide dependence can be slided in guide pin bushing is fixing, and described guide pin bushing is fixed on the mechanical assembly unit section screed by erection support again.When described freely-moving mangle stretches, driving described stock guide by its outer panel slides in guide pin bushing, make stock guide and freely-moving mangle synchronization telescope, this stock guide is at flexible hopper of the anterior formation of described freely-moving mangle, because being synchronized with the movement of stock guide and freely-moving mangle makes anterior hopper of described freely-moving mangle and described freely-moving mangle synchronization telescope.Like this, this material guide device can adapt to the length requirement of freely-moving mangle at any time, for it provides suitable anterior hopper, has thoroughly solved the preceding wide problem of hopper of freely-moving mangle.
In the preferred embodiments of the present invention, described stock guide comprises and can control the lifter plate that moves up and down by rocking handle, the lower surface of this lifter plate forms the lower edge of this material guide device, can form different guides gap as required, thereby material stack height before the control freely-moving mangle satisfies different construction demands flexibly.
Description of drawings
Fig. 1 be the material guide device that provides of first embodiment of the invention with and the vertical view of relevant portion;
Fig. 2 is the lateral view of the flexible material guide device that provides of first embodiment of the invention;
Fig. 3 is the elevation of the flexible material guide device that provides of first embodiment of the invention;
Fig. 4 is the elevation of stock guide body 8 ' in the first embodiment of the invention;
Fig. 5 is the lateral view of stock guide body 8 ' in the first embodiment of the invention;
Fig. 6 is the elevation of lifter plate 5 in the first embodiment of the invention;
Fig. 7 is the lateral view of lifter plate 5 in the first embodiment of the invention;
1. erection support 1-1. fixed head 1-2. support 2. rocking handles 3. screw rods 4. slide blocks 5. lifter plates 6. guide pin bushings 7. travellers 8. stock guides 8 '. plate 8-5. bending 8-6. through hole 9. ring flanges 10. lubricating cups 11. bolts 12. freely-moving mangle side guards 13. mechanical assembly unit section screed 14. freely-moving mangles 15. flexible hopper 16. front hopper 17. spiral distributor striker plates 18. telescopic oil cylinders 19. expansion pedestals 20. contracting screed guide pin bushings 21. freely-moving mangle travellers 22. limited blocks behind the stock guide body 8-1. mainboard 8-2. side plate 8-3. limiting plate 8-4.
The specific embodiment
First embodiment of the invention provides a kind of hopper telescopic paver material guide device, and this paver material guide device does not influence the existence and the layout of former material guide device, in order to distinguish mutually in former material guide device, claims this material guide device to be flexible material guide device.
Please referring to Fig. 1, this figure be the material guide device that provides of first embodiment of the invention with and the vertical view of relevant portion.This figure is the concrete installation site of flexible material guide device provided by the invention as can be seen.In order to distinguish flexible material-pouring device and other parts, the part of flexible material guide device illustrates with solid line among Fig. 1, and other parts are drawn with dotted line.
In order better to understand the structure and the operating principle of described flexible material guide device, below the structure of part relevant with it in this paver is described at first.
As shown in Figure 1, hopper 16 before this flexible material guide device front portion has, these preceding hopper 16 front portions are spiral distributor striker plate 17, in the preceding hopper 16 spiral distributor can be set.Should be close to mechanical assembly unit section screed 13 (position, middle of this preceding hopper 16 is main screed, does not illustrate) near the position in the middle part of the pavers in Fig. 1 after the preceding hopper 16.Top at the position in the outer part of this machinery assembly unit section screed 13 is equipped with expansion pedestal 19.The structure of described expansion pedestal 19 can be simultaneously referring to Fig. 2.Fix former and later two freely-moving mangle guide pin bushings 6 on this expansion pedestal 19, and the freely-moving mangle traveller 21 that cooperates with above-mentioned guide pin bushing, described freely-moving mangle 14 obtains fixing by freely-moving mangle traveller 21, said structure provides motion guide rail for freely-moving mangle 14.Between described former and later two guide pin bushings, also be fixed with telescopic oil cylinder 18, fixedly connected with freely-moving mangle side guard 12 in the expansion link termination of this telescopic oil cylinder 18.Described telescopic oil cylinder 18 is and drives the power that this freely-moving mangle 14 stretches, and when telescopic oil cylinder 18 stretched, described freely-moving mangle side guard 12 moved thereupon, drove the flexible of freely-moving mangle 14.
The concrete structure of the flexible material guide device that the embodiment of the invention provides below is described.Please be simultaneously referring to Fig. 1 and Fig. 2.The lateral view of the flexible material guide device that provides for first embodiment of the invention of Fig. 2 wherein.
As shown in the figure, this flexible material guide device comprises erection support 1, guide pin bushing 6, traveller 7, stock guide 8.
Described erection support 1 comprises two fixed head 1-1 and two support 1-2 that connect as one with two fixed head 1-1 respectively.Two fixed head 1-1 are installed in freely-moving mangle guide pin bushing 6 tops of freely-moving mangle 14 respectively by four bolt, described support 1-2 also stretches out forward in the outside of two fixed head 1-1 respectively.Two stands 1-2 front end is the annular of hollow, and fixes by the both ends of the surface of flange face and described guide pin bushing 6 respectively.As can be seen from Figure 2, this erection support 1 is fixed on the top of described expansion pedestal 19, and forwards stretches out.The effect of this erection support 1 is the basis that the location is provided for whole flexible material guide device.Because described expansion pedestal 19 is to be fixed on the mechanical assembly unit section screed 13, so in fact this erection support 1 is to be positioned on the mechanical assembly unit section screed 13.Described erection support 1 also can be positioned on other position of mechanical assembly unit section screed 13 rather than on the described expansion pedestal 19.
Described guide pin bushing 6 is a tube with hollow guide hole, and in order to fix with described support 1-2, its both ends of the surface have the flange face of ring-type.As mentioned above, described guide pin bushing 6 two ends connect described support 1-2 by flange face, thereby obtain the location.The hollow guide hole of this guide pin bushing 6 provides motion guide rail for traveller 7.
Described traveller 7 is cylindrical, and the hollow guide hole internal diameter of its external diameter and described guide pin bushing 6 cooperatively interacts, and can slide in this guide hole.The two ends of this traveller 7 connect the stock guide 8 that stretches out downwards by flange 9.
Please referring to Fig. 3, this figure is the elevation of the described flexible material guide device of the past backward directions.Can further understand the matching relationship between above-mentioned guide pin bushing 6 and the traveller 7 among the figure.It also shows, on described guide pin bushing 6 lubricating cup 10 is installed, this lubricating cup 10 is used for adding lubrication oil to guide pin bushing 6.
The structure of stock guide 8 as can be seen from Figure 2.Stock guide 8 comprises stock guide body 8 ', lifter plate 5, screw rod 3, slide block 4, rocking handle 2.The rear surface that the it also shows stock guide 8 described mechanical assembly unit section screed 13 of making peace greatly fits.
Fig. 4 illustrates the elevation of described stock guide body 8 '.This illustrates, and stock guide body 8 ' comprises two side plate 8-2 of header board 8-1 and this header board 8-1 both sides, and both connect as one by modes such as welding each other.Above-mentioned header board 8-1 is a steel plate, the top of above-mentioned side plate 8-2 is the arm shape stretches out, and has through hole at arm shape end, and traveller 7 can insert this through hole, above-mentioned flange 9 promptly connects biside plate 8-2 and described traveller 7 at this lead to the hole site with bolt, realizes the connection to stock guide 8.
Fig. 5 illustrates the lateral view of described stock guide body 8 '.As can be seen, the header board 8-1 bending of this stock guide body 8 ' forms the bending 8-5 of horizontal direction, and this bending 8-5 forms the upper surface of the header board 8-1 of this stock guide body 8 ', and its upper middle position has the through hole 8-6 that is used to pass screw rod 3.Back plate 8-4 is arranged at the bottom of this bending 8-5, and like this, header board 8-1 and back plate 8-4 cross the cavity at a middle part jointly, and this cavity has the opening towards the lower surface.At the lower position of described header board 8-1, also correspondence is provided with limiting plate 8-3, and this limiting plate 8-3 is fixed on the described side plate 8-2, is used to lifter plate 5 cited below that sports limiting is provided.
Please continue referring to Fig. 2, this illustrates, and above the through hole 8-6 of described bending 8-5 limited block 22 is arranged, and screw rod 3 passes through hole 8-6 and the limited block 22 of described bending 8-5, and obtains the location in this position, and screw rod 3 tops have rocking handle 2.The threaded portion of this screw rod 3 is combined with slide block 4, and this slide block 4 can move up and down along screw rod 3 along with the rotation of screw rod 3.On slide block 4, be connected with lifter plate 5.Fig. 6 illustrates the elevation of this lifter plate 5, and Fig. 7 illustrates the lateral view of this lifter plate 5.As shown in the figure, this lifter plate 5 is axisymmetric flat board, and top is trapezoidal, and the bottom is rectangle and has on the fore-and-aft direction backward bending part.The centre position on these lifter plate 5 tops has two holes.As shown in Figure 2, these lifter plate 5 front surfaces and described back plate 8-4 fit, and have opening on described back plate 8-4, make lifter plate 5 at this aperture position by being bolted on the slide block 4.The opening of the lower surface of the middle cavities that this lifter plate 5 crosses jointly by described header board 8-1 and back plate 8-4 stretches out, it passes the gap between header board 8-1 and the described limiting plate 8-3 downwards always, stretch out stock guide body 8 ', its lower surface forms the lower edge of this material guide device, gap between this lower edge and the ground is the guide gap, and the height in this guide gap can be controlled material stack height.By said structure, described lifter plate 5 can be realized elevating movement by rotation crank 2, thereby the requirement of different construction occasions is satisfied in control guide gap.
In addition, also illustrate in Fig. 3, side plate 8-2 in the outer part is fixing with freely-moving mangle side guard 12 by bolt 11.In fact described bolt 11 can have several, to realize the secure fixation of freely-moving mangle side guard 12 and side plate 8-2.
The material guide device operating principle of should stretching is as described below.
When freely-moving mangle 14 did not stretch out, described flexible material guide device also was positioned at the front portion of described mechanical assembly unit section screed 13, can not form flexible hopper.When freely-moving mangle 14 need stretch out, then control described telescopic oil cylinder 18 and stretch out, when this telescopic oil cylinder 18 stretched out, described freely-moving mangle side guard 12 stretched out.Because the side plate 8-2 of stock guide 8 is fixing with freely-moving mangle side guard 12 by bolt 11, so, this freely-moving mangle side guard 12 applies pulling force to described stock guide 8, described stock guide 8 is fixed on again on the traveller 7, stretch out on the track of determining along traveller 7 and guide pin bushing 6 so stock guide 8 is followed stretching out of described freely-moving mangle side guard 12 7 of this travellers location of sliding in guide pin bushing 6.After described stock guide 8 stretches out, form flexible hopper 15 in the front portion of described freely-moving mangle 14.With flexible material guide device is not set before compare, these flexible hopper 15 width shorten half, have avoided the wide variety of issue that causes of freely-moving mangle 14 anterior hoppers.Said structure has been guaranteed flexible hopper 15 stretching and synchronization telescope along with freely-moving mangle 14, can not be created in the installation inconvenience that mode that mechanical assembly unit section screed 13 sides install and fix the formula material guide device causes, and freely-moving mangle 14 can not there are differences with the solid stock guide width.
Above embodiment has only provided the flexible material guide device structure of paver one side, in fact, when paver is used above-mentioned flexible material guide device, can be corresponding with described freely-moving mangle 14, in bilateral symmetry this device is installed.
Above-mentioned flexible material guide device is applied to the paver that paver promptly obtains to have this flexible material guide device,, no longer provides detailed embodiment at this because its structure is only distinct with common paver on above-mentioned flexible material guide device.
The above only is a preferred implementation of the present invention, should be pointed out that for those skilled in the art, under the prerequisite that does not break away from the principle of the invention, can also make some improvements and modifications.For example, the connected mode of each parts can adopt with present embodiment in different connected modes, these improvements and modifications also should be considered as protection scope of the present invention.
Claims (8)
1. a paver material guide device is characterized in that, comprises erection support, guide pin bushing, traveller, stock guide; Described erection support is fixed on mechanical assembly unit section screed top and stretches out forward, and the described guide pin bushing of its anterior fixedly connected hollow, the axis of this guide pin bushing are parallel to the flexible direction of freely-moving mangle; Described traveller passes from the cavity of this guide pin bushing; Described stock guide below fixedly stretching on this traveller; The outboard end of described stock guide and/or traveller and freely-moving mangle side guard are fixed; When the freely-moving mangle stretching motion, drive described traveller by this freely-moving mangle side guard and in guide pin bushing, move, thereby make described stock guide stretching and synchronization telescope along with freely-moving mangle;
Described stock guide comprises stock guide body, lifter plate, screw rod, slide block, rocking handle, limited block; Described stock guide body comprises left and right side plate and forward and backward plate, and surrounds the cavity that the bottom has opening; Wherein left and right side plate and described traveller are fixed; Described limited block is fixed on the stock guide body, and screw rod vertically passes limited block and stock guide body, and described screw rod upper end is connected with and is positioned at this external rocking handle of stock guide; Described slide block cooperates with this screw rod, and is fixed with described lifter plate on this slide block; Described stock guide body is stretched out in this lifter plate bottom, and described lifter plate lower surface forms the lower edge of this material guide device; By rotation crank, can make the rotation of described screw rod and slide block is slided up and down, drive described lifter plate and rise or descend, regulating the guide gap of this material guide device bottom, thus material stack height before the control freely-moving mangle.
2. paver material guide device according to claim 1, it is characterized in that, described erection support comprises two fixed heads and two supports that are connected with fixed head respectively, two fixed heads are installed on the expansion pedestal by bolt, described support stretches out forward, the two stands front end is the annular of hollow, and fixes by the both ends of the surface of flange and described guide pin bushing respectively.
3. paver material guide device according to claim 2 is characterized in that, the lubricating cup that is used for apply oil in guide pin bushing is installed on the described guide pin bushing.
4. paver material guide device according to claim 1 is characterized in that, when stock guide was withdrawn, the front surface of its rear surface and mechanical assembly unit section screed was fitted substantially.
5. paver material guide device according to claim 1 is characterized in that, described screw rod is installed in the horizontal centre position of described stock guide body.
6. paver material guide device according to claim 5, it is characterized in that, the outboard end of described stock guide and freely-moving mangle side guard are fixed, and the side plate of an end in the outer part that specifically is described stock guide body is by on the side guard that is bolted to freely-moving mangle.
7. paver material guide device according to claim 6 is characterized in that, described biside plate and described traveller are connected to one, and its concrete mode is that the two ends of described traveller are connected with the biside plate of bolt with described stock guide body by flange.
8. a paver is characterized in that, corresponding its freely-moving mangle on the mechanical assembly unit section screed at its two ends, left and right sides is fixed with claim 1 to each described material guide device of claim 7.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008100997518A CN101319484B (en) | 2008-06-04 | 2008-06-04 | Spreader and its material guiding apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008100997518A CN101319484B (en) | 2008-06-04 | 2008-06-04 | Spreader and its material guiding apparatus |
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| Publication Number | Publication Date |
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| CN101319484A CN101319484A (en) | 2008-12-10 |
| CN101319484B true CN101319484B (en) | 2010-06-02 |
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| CN2008100997518A Active CN101319484B (en) | 2008-06-04 | 2008-06-04 | Spreader and its material guiding apparatus |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102525165B (en) * | 2012-01-22 | 2014-04-16 | 无锡研中科技有限公司 | Cloth supporting mechanism for seat backrest cloth-wrapping machine |
| CN103590310B (en) * | 2013-11-19 | 2015-11-18 | 中联重科股份有限公司 | Side baffle mechanism, screed and paver |
| CN112229481A (en) * | 2020-10-23 | 2021-01-15 | 徐工集团工程机械股份有限公司道路机械分公司 | Paver with double material level sensors and material level height control method |
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Assignee: Hunan Sany Road Machinery Co., Ltd. Assignor: Sanyi Heavy Industry Co., Ltd. Contract record no.: 2011430000061 Denomination of invention: Spreader and its material guiding apparatus Granted publication date: 20100602 License type: Exclusive License Open date: 20081210 Record date: 20110503 |
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Effective date of registration: 20160204 Address after: 413000 Yiyang high tech Zone in the eastern part of the New District of integrated services building, Room 502, Hunan Patentee after: Yiyang science and Technology Achievement Transformation Service Center Patentee after: Sanyi Heavy Industry Co., Ltd. Address before: 410100 Changsha economic and Technological Development Zone, Hunan City, the 31 industrial city Patentee before: Sanyi Heavy Industry Co., Ltd. |