CN203402851U - Transversely-movable jacking transportation trolley - Google Patents
Transversely-movable jacking transportation trolley Download PDFInfo
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- CN203402851U CN203402851U CN201320353975.3U CN201320353975U CN203402851U CN 203402851 U CN203402851 U CN 203402851U CN 201320353975 U CN201320353975 U CN 201320353975U CN 203402851 U CN203402851 U CN 203402851U
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- walking
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- transfer trolley
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Abstract
The utility model belongs to the field of transportation machinery and particularly relates to a transversely-movable jacking transportation trolley capable of transferring a tower barrel. The transversely-movable jacking transportation trolley comprises a jacking mechanism, a walking mechanism and a walking guide rail in sequence from top to bottom, and further comprises a remote controller switching control system, wherein the remote controller switching control system is used for controlling the jacking mechanism and the walking mechanism; the walking mechanism comprises two rails which are located at the left and right ends of the trolley; each of the jacking mechanism and the walking mechanism is divided into two parts which are located at the two ends of the trolley respectively. The transversely-movable jacking transportation trolley has the characteristics of flexible workplaces, strong mobility and the like.
Description
Technical field
The utility model belongs to field of transport machinery, is specifically related to a kind of traversing jacking transfer trolley that can shift tower cylinder.
Background technology
Wind-power tower is exactly the tower bar of wind-power electricity generation, in wind power generating set, mainly plays a supportive role, and absorbs unit vibrations simultaneously.
The technological process of production of wind-power tower is generally as follows: numerical control cutting machine blanking, slab needs beveling of the edge, after the moulding of bending roll roll bending, spot welding, location, carries out the welding of inside and outside longitudinal joint after confirmation, after circularity checks, carry out if you have questions secondary round, after single-unit barrel soldering completes, adopt hydraulic pressure group pair roller frame to be grouping a postwelding, the inside and outside circumferential weld of welding, the tolerances such as straightness accuracy after welded flange, are carried out weld seam non-destructive flaw detection and planeness inspection after checking, sandblast, spray paint after processing, complete after internal installation and product inspection, be transported to erecting stage.
In prior art, the mode of transporter tower cylinder generally has three kinds: a kind of method is to use portal crane, but because the shape of tower cylinder is the cylinder higher than 26m, weight is large, highly high, cross-sectional plane is again circular, only adopt a portal crane transportation to be easy to occur crooked phenomenon on one side, danger is large especially, so can only adopt two portal cranes slings from two ends by tower cylinder respectively simultaneously, then at two portal cranes of synchronous operation, tower cylinder is transported to behind target location, and synchronous operation is coordinated two portal cranes tower cylinder is put down.The price of the portal crane of two 100 tons totally 320 ten thousand left and right in this mode, a tower cylinder originating firm is used two portal crane day-to-day operation expenses approximately 2000 yuan/8 hours.
Second method is to adopt cranemobile, due to the specific height of tower cylinder and shape, needs two cranemobile coordinated manipulations just can complete equally.The price of the cranemobile of two 100 tons totally 450 ten thousand left and right in this mode, a tower cylinder originating firm is used two cranemobile day-to-day operation expenses approximately 6000 yuan/8 hours.
The third method is truck, due to the specific height of tower cylinder and shape, needs just can complete with a cranemobile coordinated manipulation more equally.The price of the cranemobile of lorry and 100 tons totally 260 ten thousand left and right in this mode, day-to-day operation expense approximately 2600 yuan/8 hours.
In prior art there is problem in the mode of transporter tower cylinder as can be seen here: 1, at least need two heavy waress, not only equipment purchase expense is high, and usage charges are high, also needs two operated by the technical personnel of professional training simultaneously simultaneously, and labour cost is high; 2, need two equipment collaborations to complete transport, operation easier is large, and danger coefficient is high; 3, two heavy wares volume is large, mobility is poor, work place is required high, use very flexible.
Utility model content
For solving the above-mentioned problems in the prior art, the purpose of this utility model is to provide a kind of traversing jacking transfer trolley, it can complete the work that tower cylinder is transported to the assigned addresses such as welding shop, sand-blast shop, and work place is flexible, mobility is strong.
The technical solution of the utility model is, a kind of traversing jacking transfer trolley, comprise successively from top to bottom lifting body, traveling gear and walking guide rail, also comprise remote controller switching control system, described remote controller switching control system is controlled traveling gear and lifting body, walking guide rail comprises two tracks that are positioned at two ends, chassis left and right, and corresponding lifting body and traveling gear are divided into two parts, lay respectively at the two ends, left and right of chassis.
Optimize, described traveling gear comprises initiatively traveling gear and driven traveling gear, driven traveling gear comprises the driven walking wheel that is positioned at chassis rear portion, and active traveling gear comprises walking framed structure, is positioned at positive transport wheel system, walking axle system and bearings, traveling retarding mechanism, walking electrical motor, the brake system of chassis front portion; Walking electrical motor is connected with positive transport wheel system with traveling retarding mechanism by brake system.
Optimize, described driven walking wheel comprises symmetrical two flower wheels that are positioned at two ends, left and right, chassis rear portion, positive transport wheel system comprises symmetrical two driving wheels that are positioned at two ends, the anterior left and right of chassis, two driving wheels are respectively by two walking motor control, and two walking electrical motors are by same Frequency Converter Control.
Optimize, described lifting body comprises jacking framed structure, clamping device, jacking cylinder, jacking drive system, pumping plant; Jacking drive system is connected with jacking cylinder with pumping plant, and clamping device is positioned at the inner side of jacking framed structure.
Optimize, described jacking framed structure comprises jacking support box, jacking bracket, control inhibiting device, controls inhibiting device and is positioned at jacking cylinder top, and jacking support box is positioned at jacking bracket below.
Optimize, the vertical section, top of described jacking bracket is set to trapezoidal.
Optimize, described remote controller switching control system comprises complete machine control box.
Optimize, before and after chassis, two parts adopt medium plate to be welded, and after welding, through bulk heat treatment, after ageing treatment, process; Described positive transport wheel system and driven walking wheel adopt 45# to forge modulation, process, and adopt electro-high-frequency hardening after annealing.
Optimize, the supporting power supply of equipment complete machine is that 100m specification is 3*16+1, is positioned on cable drum, and cable drum is provided with take-up mechanism, adopts electric rolling to get line, and unwrapping wire, for freely to pull, is equipped with cable arrange-line device.
Optimize, between two tracks and to lay respectively at lifting body and the distance between two parts of traveling gear at two ends, chassis left and right adjustable.
Because lifting body and traveling gear are divided into two parts, lay respectively at the two ends, left and right of chassis, so chassis comprises each parts and quantity is: 2 cover lifting bodies, 2 cover traveling geaies, article 2, track, 1 cable arrange-line device, 2 cover walking framed structures, 4 cover walking axle system and bearings, 2 cover traveling retarding mechanisms, 2 walking electrical motors, 2 cover brake system, 2 flower wheels, 2 driving wheels, 2 cover jacking framed structures, 4 cover clamping devices, 4 jacking cylinders, 1 cover jacking drive system and pumping plant, 2 jacking support boxes, 2 cover jacking brackets, 2 covers are controlled inhibiting device, 1 complete machine control box, 1 cable drum, 1 cover take-up mechanism.
The traversing jacking transfer trolley that the utility model provides, when large-tonnage tower cylinder operation shifts, can move to position undetermined by tower cylinder to be transported, is generally the transit crossconnect of tower cylinder between welding shop, sand-blast shop.
During work, first chassis runs to walking guide rail infall by traveling gear along walking guide rail, then by traveling gear, chassis is moved to suitable position; Chassis sets applicable minimum altitude, and chassis can be by the gapped tower cylinder bottom of moving to of traveling gear, stops and fixing traveling gear.
Utilize remote controller switching control system, start lifting body, utilize remote controller switching control system to control jacking cylinder and rise, slowly contact column cylinder, and by tower cylinder jack-up, until tower cylinder jack-up, highly meeting tower cylinder both sides turning rolls can stop jacking after tower cylinder axis direction is withdrawn from.
After both sides turning rolls is withdrawn from, start pumping plant, tower cylinder is dropped to minimum altitude, and start the clamping oil cylinder of clamping device, clamp tower cylinder; Be provided with limit function herein, jacking piece drop to nadir touch spacing after, just can start walking motor operation.
After ready, utilize remote controller switching control system, start traveling gear, utilize transfer trolley tower cylinder to be transported to the operation needing.
Traveling gear of the present utility model can be realized rotating and reverse of walking.Lifting body can be realized left jacking decline, right jacking decline and synchronization of jacking up and decline, and stroke limit is set, protection mechanism safety.
Because lifting body is divided into the two parts at the two ends, left and right that lay respectively at chassis, two ends, left and right are respectively arranged with clamping device and jacking bracket, by the two-part jacking bracket in left and right, tower cylinder can be held up, by left and right, two-part Jia Chi mechanism can fix tower cylinder.
By regulating between two tracks and laying respectively at the lifting body at two ends, chassis left and right and the distance between two parts of traveling gear, can complete different length tower cylinder or more picking-up, fixing, the transfer work of long-object.Generally make the jacking bracket at two ends, left and right hold respectively about 1/3 and 3/2 place of tower cylinder or object length, the weight of tower cylinder or object is evenly distributed in two tracks and lays respectively on the lifting body and traveling gear at two ends, chassis left and right like this, the stressed balance that reaches of chassis.Conventionally the length of tower cylinder is 26～27m, so two-part distance is set to 9m; When the long 50～51m of object object, two-part distance is set to 17m.So only by a chassis of the present utility model, just can complete the tower cylinder of different length, or more picking-up, fixing, the transfer work of long-object.
Because traveling gear is divided into the two parts at the two ends, left and right that lay respectively at chassis, two flower wheel symmetries be positioned at two ends, left and right, chassis rear portion, two driving wheel symmetries be positioned at two ends, the anterior left and right of chassis, two driving wheels are respectively by two walking motor control, two walking electrical motors are by same Frequency Converter Control, therefore under the control of same frequency converter, the drive that two driving wheels are synchronous two flower wheels, according to same Frequency Synchronization, move ahead, not only easy to operate, and can guarantee stability and the safety of tower cylinder in moving ahead.
The beneficial effect of the traversing jacking transfer trolley that the utility model provides is:
1, the traversing jacking transfer trolley that the utility model provides, when large-tonnage tower cylinder operation shifts, only just can move to position undetermined by tower cylinder to be transported with a transfer trolley, has realized the transit crossconnect between welding shop, sand-blast shop.Chassis price of the present utility model is 400,000 left and right, effective power of motor that equipment package uses is no more than 37KW, day-to-day operation expense approximately 800 yuan/8 hours, the mode of two relatively traditional heavy wares collaborative works, the traversing jacking transfer trolley that the utility model provides has easy to operate, and work place is flexible, safe, mobility is strong, saves the features such as buying expenses, usage charges, labour cost;
2, two walking electrical motors are exported through a Frequency Converter Control, guarantee that output is synchronous, and speed of travel lifting steadily, evenly, guarantees walking stability; Chassis adopts medium plate to be welded, and through special processing, has guaranteed the stability of equipment in good rigidity and mode of operation; By driving speed reducer is set, be configured to rotary driving force, and brake system is installed, guaranteed chassis safe in operation; Therefore the transfer trolley safety factor that the utility model provides is high.
3, vertical section, jacking bracket top is set to trapezoidal, be applicable to vertical section and be the picking-up of circular object, the contact point of tower cylinder and jacking bracket is more than two, increase along with tower cylinder diameter, the contact point of tower cylinder and jacking bracket is therefrom mind-set both sides passing gradually, therefore chassis can hold up the tower cylinder of different-diameter, and the diameter range of applicable tower cylinder is wider, makes chassis be more applicable for the transportation of tower cylinder.
4, chassis weight capacity of the present utility model, jacking ability and locomotor activity are large, all can reach 150 tons.Work efficiency is high, and the speed of travel can reach 18000mm/min, and jacking speed can reach 400mm/min.
Accompanying drawing explanation
The birds-eye view of the traversing jacking transfer trolley that Fig. 1 provides for the utility model;
The front elevation of the traversing jacking transfer trolley that Fig. 2 provides for the utility model;
The left view of the traversing jacking transfer trolley that Fig. 3 provides for the utility model.
1, lifting body; 2, traveling gear; 3, walking guide rail; 4, cable arrange-line device; 5, walking framed structure; 6, walking axle system and bearings; 7, traveling retarding mechanism; 8, walking electrical motor; 9, brake system; 10, flower wheel; 11, driving wheel; 12, jacking framed structure; 13, clamping device; 14, jacking cylinder; 15, jacking drive system, pumping plant; 16, jacking support box; 17, jacking bracket; 18, control inhibiting device; 19, complete machine control box; 20, cable drum; 21, take-up mechanism.
The specific embodiment
Below in conjunction with drawings and embodiments, illustrate the utility model.
The traversing jacking transfer trolley of present embodiment, comprise successively from top to bottom lifting body 1, traveling gear 2 and walking guide rail 3, also comprise remote controller switching control system, described remote controller switching control system is controlled traveling gear 2 and lifting body 1, walking guide rail 3 comprises two tracks that are positioned at two ends, chassis left and right, corresponding lifting body 1 and traveling gear 2 are divided into two parts, lay respectively at the two ends, left and right of chassis.
Described traveling gear 2 comprises initiatively traveling gear and driven traveling gear, driven traveling gear comprises the driven walking wheel that is positioned at chassis rear portion, and active traveling gear comprises walking framed structure 5, is positioned at the positive transport wheel system of chassis front portion, walking axle system and bearings 6, traveling retarding mechanism 7, walk electrical motor 8, brake system 9; Walking electrical motor 8 is connected with positive transport wheel system with traveling retarding mechanism 7 by brake system 9.
Described driven walking wheel comprises symmetrical two flower wheels 10 that are positioned at two ends, left and right, chassis rear portion, positive transport wheel system comprises symmetrical two driving wheels 11 that are positioned at two ends, the anterior left and right of chassis, two driving wheels 11 are controlled by two walking electrical motors 8 respectively, and two walking electrical motors 8 are by same Frequency Converter Control.
Described lifting body 1 comprises jacking framed structure 12, clamping device 13, jacking cylinder 14, jacking drive system, pumping plant 15; Jacking drive system is connected with jacking cylinder 14 with pumping plant, and clamping device 13 is positioned at the inner side of jacking framed structure 12.
Described jacking framed structure 12 comprises jacking support box 16, jacking bracket 17, controls inhibiting device 18, controls inhibiting device 18 and is positioned at jacking cylinder 14 tops, and jacking support box 16 is positioned at jacking bracket 17 belows.
The vertical section, top of described jacking bracket 17 is set to trapezoidal.
Described remote controller switching control system comprises complete machine control box 19.
Before and after chassis, two parts adopt medium plate to be welded, and after welding, through bulk heat treatment, after ageing treatment, process; Described positive transport wheel system and driven walking wheel adopt 45# to forge modulation, process, and adopt electro-high-frequency hardening after annealing.
The supporting power supply of equipment complete machine is that 100m specification is 3*16+1, is positioned on cable drum 20, and cable drum 20 is provided with take-up mechanism 21, adopts electric rolling to get line, and unwrapping wire, for freely to pull, is equipped with cable arrange-line device 4.
Article two, between track and the distance laying respectively between the lifting body 1 at two ends, chassis left and right and two parts of traveling gear 2 adjustable.
Because lifting body 1 and traveling gear 2 are divided into two parts, lay respectively at the two ends, left and right of chassis, so chassis comprises each parts and quantity is: 2 cover lifting bodies, 2 cover traveling geaies, article 2, track, 1 cable arrange-line device, 2 cover walking framed structures, 4 cover walking axle system and bearings, 2 cover traveling retarding mechanisms, 2 walking electrical motors, 2 cover brake system, 2 flower wheels, 2 driving wheels, 2 cover jacking framed structures, 4 cover clamping devices, 4 jacking cylinders, 1 cover jacking drive system and pumping plant, 2 jacking support boxes, 2 cover jacking brackets, 2 covers are controlled inhibiting device, 1 complete machine control box, 1 cable drum, 1 cover take-up mechanism.
The traversing jacking transfer trolley that present embodiment provides, when large-tonnage tower cylinder operation shifts, can move to position undetermined by tower cylinder to be transported, is generally the transit crossconnect of tower cylinder between welding shop, sand-blast shop.
During work, first chassis runs to walking guide rail infall by traveling gear along walking guide rail, then by traveling gear, chassis is moved to suitable position; Chassis sets applicable minimum altitude, and chassis can be by the gapped tower cylinder bottom of moving to of traveling gear, stops and fixing traveling gear.
Utilize remote controller switching control system, start lifting body, utilize remote controller switching control system to control jacking cylinder and rise, slowly contact column cylinder, and by tower cylinder jack-up, until tower cylinder jack-up, highly meeting tower cylinder both sides turning rolls can stop jacking after tower cylinder axis direction is withdrawn from.
After both sides turning rolls is withdrawn from, start pumping plant, tower cylinder is dropped to minimum altitude, and start the clamping oil cylinder of clamping device, clamp tower cylinder; Be provided with limit function herein, jacking piece drop to nadir touch spacing after, just can start walking motor operation.
After ready, utilize remote controller switching control system, start traveling gear, utilize transfer trolley tower cylinder to be transported to the operation needing.
The traveling gear of present embodiment can be realized rotating and reverse of walking.Lifting body can be realized left jacking decline, right jacking decline and synchronization of jacking up and decline, and stroke limit is set, protection mechanism safety.
Because lifting body is divided into the two parts at the two ends, left and right that lay respectively at chassis, two ends, left and right are respectively arranged with clamping device and jacking bracket, by the two-part jacking bracket in left and right, tower cylinder can be held up, by left and right, two-part Jia Chi mechanism can fix tower cylinder.
By regulating between two tracks and laying respectively at the lifting body at two ends, chassis left and right and the distance between two parts of traveling gear, can complete different length tower cylinder or more picking-up, fixing, the transfer work of long-object.Generally make the jacking bracket at two ends, left and right hold respectively about 1/3 and 3/2 place of tower cylinder or object length, the weight of tower cylinder or object is evenly distributed in two tracks and lays respectively on the lifting body and traveling gear at two ends, chassis left and right like this, the stressed balance that reaches of chassis.Conventionally the length of tower cylinder is 26～27m, so two-part distance is set to 9m; When the long 50～51m of object object, two-part distance is set to 17m.So only by a chassis of the present utility model, just can complete the tower cylinder of different length, or more picking-up, fixing, the transfer work of long-object.
Because traveling gear is divided into the two parts at the two ends, left and right that lay respectively at chassis, two flower wheel symmetries be positioned at two ends, left and right, chassis rear portion, two driving wheel symmetries be positioned at two ends, the anterior left and right of chassis, two driving wheels are respectively by two walking motor control, two walking electrical motors are by same Frequency Converter Control, therefore under the control of same frequency converter, the drive that two driving wheels are synchronous two flower wheels, according to same Frequency Synchronization, move ahead, not only easy to operate, and can guarantee stability and the safety of tower cylinder in moving ahead.
The feature of the traversing jacking transfer trolley that present embodiment provides is: the traversing jacking transfer trolley that (1) present embodiment provides is when large-tonnage tower cylinder operation shifts, only with a transfer trolley, just tower cylinder to be transported can be moved to position undetermined, realize the transit crossconnect between welding shop, sand-blast shop.The chassis price of present embodiment is 400,000 left and right, effective power of motor that equipment package uses is no more than 37KW, day-to-day operation expense approximately 800 yuan/8 hours, the mode of two relatively traditional heavy wares collaborative works, the traversing jacking transfer trolley that present embodiment provides has easy to operate, and work place is flexible, safe, mobility is strong, saves the features such as buying expenses, usage charges, labour cost; (2) two walking electrical motors are exported through a Frequency Converter Control, guarantee that output is synchronous, and speed of travel lifting steadily, evenly, guarantees walking stability; Chassis adopts medium plate to be welded, and through special processing, has guaranteed the stability of equipment in good rigidity and mode of operation; By driving speed reducer is set, be configured to rotary driving force, and brake system is installed, guaranteed chassis safe in operation; Therefore the transfer trolley safety factor that present embodiment provides is high.(3) vertical section, jacking bracket top is set to trapezoidal, be applicable to vertical section and be the picking-up of circular object, the contact point of tower cylinder and jacking bracket is more than two, increase along with tower cylinder diameter, the contact point of tower cylinder and jacking bracket is therefrom mind-set both sides passing gradually, therefore chassis can hold up the tower cylinder of different-diameter, and the diameter range of applicable tower cylinder is wider, makes chassis be more applicable for the transportation of tower cylinder.(4) the chassis weight capacity of present embodiment, jacking ability and locomotor activity are large, all can reach 150 tons.Work efficiency is high, and the speed of travel can reach 18000mm/min, and jacking speed can reach 400mm/min.
Claims (10)
1. a traversing jacking transfer trolley, it is characterized in that: comprise successively from top to bottom lifting body, traveling gear and walking guide rail, also comprise remote controller switching control system, described remote controller switching control system is controlled traveling gear and lifting body, walking guide rail comprises two tracks that are positioned at two ends, chassis left and right, corresponding lifting body and traveling gear are divided into two parts, lay respectively at the two ends, left and right of chassis.
2. traversing jacking transfer trolley according to claim 1, it is characterized in that: described traveling gear comprises initiatively traveling gear and driven traveling gear, driven traveling gear comprises the driven walking wheel that is positioned at chassis rear portion, and active traveling gear comprises walking framed structure, is positioned at positive transport wheel system, walking axle system and bearings, traveling retarding mechanism, walking electrical motor, the brake system of chassis front portion; Walking electrical motor is connected with positive transport wheel system with traveling retarding mechanism by brake system.
3. traversing jacking transfer trolley according to claim 2, it is characterized in that: described driven walking wheel comprises symmetrical two flower wheels that are positioned at two ends, left and right, chassis rear portion, positive transport wheel system comprises symmetrical two driving wheels that are positioned at two ends, the anterior left and right of chassis, two driving wheels are respectively by two walking motor control, and two walking electrical motors are by same Frequency Converter Control.
4. traversing jacking transfer trolley according to claim 3, is characterized in that: described lifting body comprises jacking framed structure, clamping device, jacking cylinder, jacking drive system, pumping plant; Jacking drive system is connected with jacking cylinder with pumping plant, and clamping device is positioned at the inner side of jacking framed structure.
5. traversing jacking transfer trolley according to claim 4, it is characterized in that: described jacking framed structure comprises jacking support box, jacking bracket, control inhibiting device, control inhibiting device and be positioned at jacking cylinder top, jacking support box is positioned at jacking bracket below.
6. a kind of traversing jacking transfer trolley according to claim 5, is characterized in that: the vertical section, top of described jacking bracket is set to trapezoidal.
7. traversing jacking transfer trolley according to claim 6, is characterized in that: described remote controller switching control system comprises complete machine control box.
8. traversing jacking transfer trolley according to claim 7, is characterized in that: before and after chassis, two parts adopt medium plate to be welded, and after welding, through bulk heat treatment, after ageing treatment, process; Described positive transport wheel system and driven walking wheel adopt 45# to forge modulation, process, and adopt electro-high-frequency hardening after annealing.
9. according to any traversing jacking transfer trolley described in claim 1～8, it is characterized in that: the supporting power supply of equipment complete machine is that 100m specification is 3*16+1, be positioned on cable drum, cable drum is provided with take-up mechanism, adopt electric rolling to get line, unwrapping wire, for freely to pull, is equipped with cable arrange-line device.
10. according to any traversing jacking transfer trolley described in claim 1～8, it is characterized in that: between two tracks and to lay respectively at lifting body and the distance between two parts of traveling gear at two ends, chassis left and right adjustable.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320353975.3U CN203402851U (en) | 2013-06-20 | 2013-06-20 | Transversely-movable jacking transportation trolley |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320353975.3U CN203402851U (en) | 2013-06-20 | 2013-06-20 | Transversely-movable jacking transportation trolley |
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| Publication Number | Publication Date |
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| CN203402851U true CN203402851U (en) | 2014-01-22 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201320353975.3U Expired - Fee Related CN203402851U (en) | 2013-06-20 | 2013-06-20 | Transversely-movable jacking transportation trolley |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103288012A (en) * | 2013-03-06 | 2013-09-11 | 青岛威达机械制造有限公司 | Horizontally-moving jacking transferring trolley |
-
2013
- 2013-06-20 CN CN201320353975.3U patent/CN203402851U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103288012A (en) * | 2013-03-06 | 2013-09-11 | 青岛威达机械制造有限公司 | Horizontally-moving jacking transferring trolley |
| CN103288012B (en) * | 2013-03-06 | 2017-02-15 | 青岛威达机械制造有限公司 | Horizontally-moving jacking transferring trolley |
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| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140122 Termination date: 20170620 |