CN201669517U - Weldment conveying and lifting device - Google Patents
Weldment conveying and lifting device Download PDFInfo
- Publication number
- CN201669517U CN201669517U CN201020174796XU CN201020174796U CN201669517U CN 201669517 U CN201669517 U CN 201669517U CN 201020174796X U CN201020174796X U CN 201020174796XU CN 201020174796 U CN201020174796 U CN 201020174796U CN 201669517 U CN201669517 U CN 201669517U
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- Prior art keywords
- pinch roller
- riser
- installing rack
- pair
- hydraulic cylinder
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- Expired - Fee Related
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/10—Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working
Abstract
The utility model relates to the technical field of a weldment supporting and fixing device, in particular to a weldment conveying and lifting device. The weldment conveying and lifting device comprises support bases, an installation rack, a driving riser tug and a driven riser tug. The installation rack is fixedly arranged between the two support bases. The bottom of each support base is provided with at least two support rollers. A front transmission device and a rear transmission device are respectively fixed on the front side and the rear side of the installation rack. the front transmission device is provided with the driving riser tug which can rotate. The driven riser tug which can rotate and corresponds to the driving riser tug is arranged on the rear transmission device. The utility model has reasonable and compact structure and convenient use. The lifting device can adjust weldments or convey the weldments after the welding operation is started or completed so as to improve operation efficiency. A pre-compression device can compress the welments in the welding process to prevent the weldments from moving, can guarantee the weldments to rotate at constant speed in the welding process and improves welding quality.
Description
One, technical field
The utility model relates to weldment support, fixture technical field, is that a kind of weldment is carried lifting device.
Two, background technology
At present traditional positioner or turning rolls be at the prefabricated pipe fitting of welding, long defeated pipe fitting or when having the pipe fitting of elbow, and the pipe fitting that has prefabricated pipe fitting, long defeated pipe fitting or have an elbow is difficult for being transported to the problem on positioner or the turning rolls; In addition, traditional positioner or turning rolls have certain selectivity to workpiece, when long defeated and have elbow, just exist positioner can't clamp the problem of weldment when the weldment diameter is bigger, when the weldment to elbow or double bend welds, can occur in welding process can not uniform rotation, causes the underproof situation of welding quality.
Three, summary of the invention
The utility model provides a kind of weldment to carry lifting device, has overcome the deficiency of above-mentioned prior art, and it can effectively solve the problem that weldment is difficult for carrying.
The utility model has also further solved positioner or turning rolls and can't clamp weldment and cause the underproof problem of welding quality.
The technical solution of the utility model realizes by following measure: a kind of weldment is carried lifting device, comprises base for supporting, installing rack, active riser tugboat and driven riser tugboat; Between two base for supporting, be installed with installing rack, at least two support roller is installed in the bottom of each base for supporting, transmission device and back transmission device before the front side of installing rack and rear side are fixed with respectively, the active riser tugboat that can rotate is installed on preceding transmission device, be equipped with on the transmission device in the back can rotate and with the corresponding driven riser tugboat of active riser tugboat, on installing rack, be installed with the phase asynchronous variable-frequency motor that can drive the rotation of active riser tugboat.
Be further optimization and/or improvements below to above-mentioned utility model technical scheme:
Transmission device comprises that front support stand, preceding riser action wheel, preceding riser support reinforcement plate and preceding lifting hydraulic cylinder before above-mentioned; Be fixed with a pair of front support stand in the front side of installing rack, riser action wheel before between a pair of front support stand, being hinged with, the two ends of preceding riser action wheel have a pair of before riser support reinforcement plate, the lower end of riser support reinforcement plate is fixed together with the two ends that preceding riser action is taken turns respectively before a pair of, before a pair of, by bearing the active riser tugboat that can rotate is installed between the upper end of riser support reinforcement plate, be installed with preceding lifting hydraulic cylinder in the front side of installing rack, the outer end of the piston rod of preceding lifting hydraulic cylinder and preceding riser action wheel are fixedly installed togather and preceding riser action wheel is rotated; Back transmission device comprises that rear support stand, back riser action wheel, back riser support reinforcement plate and back lifting hydraulic cylinder; Rear side at installing rack is fixed with a pair of rear support stand, between a pair of rear support stand, be hinged with back riser action wheel, there is a pair of back riser to support reinforcement plate at the two ends of back riser action wheel, the lower end that a pair of back riser supports reinforcement plate is fixed together with the two ends that back riser action is taken turns respectively, support at a pair of back riser between the upper end of reinforcement plate by bearing be equipped with can rotate and with the corresponding driven riser tugboat of active riser tugboat, rear side at installing rack is installed with the back lifting hydraulic cylinder, and the outer end of the piston rod of back lifting hydraulic cylinder is fixedly installed togather with back riser action wheel and back riser action wheel is rotated.
Big dolioform in narrow two in the middle of above-mentioned active riser tugboat and driven riser tugboat all can be.
Can there be the open slot that can place active roller and return idler at the middle part of above-mentioned installing rack, and at least four pairs bearing block installing hole is arranged on the installing rack of open slot both sides.
On the above-mentioned installing rack pre-compressing device can be installed, this pre-compressing device comprises interior pipe, outer tube, pinch roller cantilever, pinch roller gripper shoe, pinch roller and pinch roller hydraulic cylinder; The lower end of interior pipe is fixedly mounted on the installing rack, in interior pipe, leading screw is arranged, the upper end of leading screw is stretched out the top of interior pipe and is installed with rotary handle, on the screw thread of leading screw, nut is installed, the slotted hole that mutual correspondence is arranged on inner tubal wall vertically, the outside at interior pipe is set with outer tube, outer tube and nut are fixedly installed togather and can move up and down along slotted hole, the left part of pinch roller cantilever has left opening, the middle part of outer tube is positioned at left opening and hinged with the pinch roller cantilever, right part at the pinch roller cantilever has right opening, on right opening, be installed with connecting axle, be set with a pair of pinch roller gripper shoe at the two ends of connecting axle, the a pair of pinch roller that can compress pipe fitting is installed between a pair of pinch roller gripper shoe, left end at left opening is installed with fixed axis, is installed with the pinch roller hydraulic cylinder on installing rack, and the upper end and the fixed axis of the piston head of pinch roller hydraulic cylinder are fixedly installed togather.
The utility model reasonable and compact in structure, easy to use, carry lifting device after the welding beginning or finishing, to regulate weldment or to carry weldment, thereby to have improved efficiency of operation; Can when welding, compress weldment by pre-compressing device, prevent jumping of weldment, and can guarantee that weldment at the uniform velocity rotates in the welding process, improve the quality of welding.
Four, description of drawings
Accompanying drawing 1 is the main TV structure schematic diagram of the utility model when pre-compressing device not being installed.
Accompanying drawing 2 is the main TV structure schematic diagram of the utility model after pre-compressing device being installed and active roller, return idler are installed.
Accompanying drawing 3 is the plan structure schematic diagram of accompanying drawing 2.
Accompanying drawing 4 is the left TV structure schematic diagram of accompanying drawing 2.
Accompanying drawing 5 be in the accompanying drawing 4 A-A to the sectional structure schematic diagram.
Accompanying drawing 6 is the perspective view of the utility model after pre-compressing device being installed and active roller, return idler are installed.
Coding in the accompanying drawing is respectively: 1 is base for supporting, and 2 is installing rack, and 3 is active roller, 4 is return idler, and 5 is support roller, and 6 is preceding riser action wheel, 7 is back riser action wheel, and 8 is active riser tugboat, and 9 is driven riser tugboat, 10 is preceding lifting hydraulic cylinder, and 11 is the back lifting hydraulic cylinder, and 12 is front support stand, 13 is rear support stand, and 14 is that preceding riser supports reinforcement plate, and 15 is that the back riser supports reinforcement plate, 16 is interior pipe, and 17 is outer tube, and 18 is the pinch roller cantilever, 19 is the pinch roller gripper shoe, and 20 is pinch roller, and 21 is the pinch roller hydraulic cylinder, 22 is leading screw, and 23 is rotary handle, and 24 is nut, 25 is slotted hole, 26 is left opening, and 27 is right opening, and 28 is connecting axle, 29 is fixed axis, 30 is open slot, and 31 is the bearing block installing hole, and 32 is bearing block.
Five, the specific embodiment
The utility model is not subjected to the restriction of following embodiment, can determine concrete embodiment according to the technical solution of the utility model and actual conditions.
Below in conjunction with embodiment and accompanying drawing the utility model is further described:
As shown in Figure 1, this weldment carries lifting device to comprise base for supporting 1, installing rack 2, active riser tugboat 8 and driven riser tugboat 9; Between two base for supporting 1, be installed with installing rack 2, at least two support roller 5 is installed in the bottom of each base for supporting 1, transmission device and back transmission device before the front side of installing rack 2 and rear side are fixed with respectively, the active riser tugboat 8 that can rotate is installed on preceding transmission device, be equipped with on the transmission device in the back can rotate and with active riser tugboat 8 corresponding driven riser tugboats 9, on installing rack 2, be installed with the phase asynchronous variable-frequency motor that can drive 8 rotations of active riser tugboat.
Can carry lifting device to make further optimization and/or improvements to above-mentioned weldment according to actual needs:
Shown in accompanying drawing 1,2,3,4,6, preceding transmission device comprises that front support stand 12, preceding riser action wheel 6, preceding riser support reinforcement plate 14 and preceding lifting hydraulic cylinder 10; Be fixed with a pair of front support stand 12 in the front side of installing rack 2, riser action wheel 6 before between a pair of front support stand 12, being hinged with, the two ends of preceding riser action wheel 6 have a pair of before riser support reinforcement plate 14, the lower end that riser supports reinforcement plate 14 before a pair of is fixed together with the two ends of preceding riser action wheel 6 respectively, before a pair of, by bearing the active riser tugboat 8 that can rotate is installed between the upper end of riser support reinforcement plate 14, lifting hydraulic cylinder 10 before the front side of installing rack 2 is installed with, and the outer end of the piston rod of preceding lifting hydraulic cylinder 10 and preceding riser action wheel 6 are fixedly installed togather and preceding riser action wheel 6 is rotated; Back transmission device comprises that rear support stand 13, back riser action wheel 7, back riser support reinforcement plate 15 and back lifting hydraulic cylinder 11; Rear side at installing rack 2 is fixed with a pair of rear support stand 13, between a pair of rear support stand 13, be hinged with back riser action wheel 7, there is a pair of back riser to support reinforcement plate 15 at the two ends of back riser action wheel 7, the lower end that a pair of back riser supports reinforcement plate 15 is fixed together with the two ends of back riser action wheel 7 respectively, support at a pair of back riser between the upper end of reinforcement plate 15 by bearing be equipped with can rotate and with active riser tugboat 8 corresponding driven riser tugboats 9 mutually, rear side at installing rack 2 is installed with back lifting hydraulic cylinder 11, and the outer end of the piston rod of back lifting hydraulic cylinder 11 is fixedly installed togather with back riser action wheel 7 and back riser action wheel 7 is rotated.Like this, during work at first with active roller 3, return idler 4 is installed on the installing rack 2, then pipe fitting is placed on the active riser tugboat 8, start phase asynchronous variable-frequency motor riser tugboat 8 is rotated and make pipe fitting to driven riser tugboat 9 directions move and seat on active riser tugboat 8 and driven riser tugboat 9, lifting hydraulic cylinder 10 and back lifting hydraulic cylinder 11 before driving then and before making riser action wheel 6 and back riser action wheel 7 rotate, thereby active riser tugboat 8 and driven riser tugboat 9 are moved downward, and last pipe fitting seat is at active roller 3, between the return idler 4.
Shown in accompanying drawing 1,2,3,4,6, big dolioform in narrow two in the middle of initiatively riser tugboat 8 and driven riser tugboat 9 all are, so just can guarantee that in the riser process pipe fitting is positioned at the middle part of active riser tugboat 8 and driven riser tugboat 9 and can overturn to both sides.
Shown in accompanying drawing 1,2,5, there is the open slot 30 that can place active roller 3 and return idler 4 at the middle part of installing rack 2, at least four pairs bearing block installing hole 31 is arranged on the installing rack 2 of open slot 30 both sides, like this, when the diameter of pipe fitting not simultaneously, bearing block 32 can be installed in the spacing of adjusting active roller 3 and return idler 4 in the bearing block installing hole 31 of diverse location.
Shown in accompanying drawing 1 to 6, on the installing rack 2 pre-compressing device is installed, pipe 16, outer tube 17, pinch roller cantilever 18, pinch roller gripper shoe 19, pinch roller 20 and pinch roller hydraulic cylinder 21 in this pre-compressing device comprises; The lower end of interior pipe 16 is fixedly mounted on the installing rack 2, in interior pipe 16, leading screw 22 is arranged, manage 16 top in stretch out the upper end of leading screw 22 and be installed with rotary handle 23, nut 24 is installed on the screw thread of leading screw 22, the slotted hole 25 that mutual correspondence is arranged on inner tubal wall vertically, be set with outer tube 17 in the outside of interior pipe 16, outer tube 17 is fixedly installed togather with nut 24 and can moves up and down along slotted hole 25, the left part of pinch roller cantilever 18 has left opening 26, the middle part of outer tube 17 is positioned at left opening 26 and hinged with pinch roller cantilever 18, right part at pinch roller cantilever 18 has right opening 27, on right opening 27, be installed with connecting axle 28, be set with a pair of pinch roller gripper shoe 19 at the two ends of connecting axle 28, the a pair of pinch roller 20 that can compress pipe fitting is installed between a pair of pinch roller gripper shoe 19, left end at left opening 26 is installed with fixed axis 29, on installing rack 2, be installed with pinch roller hydraulic cylinder 21, the upper end of the piston head of pinch roller hydraulic cylinder 21 and fixed axis 29 are fixedly installed togather, like this, pinch roller 20 drives leading screw 22 drive outer tubes 17 by rotation rotary handle 23 and moves up and down, pinch roller 20 is transferred to the appropriate location in advance, treat that pipe fitting is placed and finish or after the pipe fitting welding finishes, by pinch roller hydraulic cylinder 21 pinch roller cantilever 18 is rotated up and down and just can make pinch roller 20 compress pipe fitting or unclamp pipe fitting.
Above technical characterictic has constituted most preferred embodiment of the present utility model, and it has stronger adaptability and best implementation result, can increase and decrease non-essential technical characterictic according to actual needs, satisfies the demand of different situations.
Claims (9)
1. a weldment is carried lifting device, it is characterized in that comprising base for supporting, installing rack, active riser tugboat and driven riser tugboat; Between two base for supporting, be installed with installing rack, at least two support roller is installed in the bottom of each base for supporting, transmission device and back transmission device before the front side of installing rack and rear side are fixed with respectively, the active riser tugboat that can rotate is installed on preceding transmission device, be equipped with on the transmission device in the back can rotate and with the corresponding driven riser tugboat of active riser tugboat, on installing rack, be installed with the phase asynchronous variable-frequency motor that can drive the rotation of active riser tugboat.
2. weldment according to claim 1 is carried lifting device, and transmission device comprises that front support stand, preceding riser action wheel, preceding riser support reinforcement plate and preceding lifting hydraulic cylinder before it is characterized in that; Be fixed with a pair of front support stand in the front side of installing rack, riser action wheel before between a pair of front support stand, being hinged with, the two ends of preceding riser action wheel have a pair of before riser support reinforcement plate, the lower end of riser support reinforcement plate is fixed together with the two ends that preceding riser action is taken turns respectively before a pair of, before a pair of, by bearing the active riser tugboat that can rotate is installed between the upper end of riser support reinforcement plate, be installed with preceding lifting hydraulic cylinder in the front side of installing rack, the outer end of the piston rod of preceding lifting hydraulic cylinder and preceding riser action wheel are fixedly installed togather and preceding riser action wheel is rotated; Back transmission device comprises that rear support stand, back riser action wheel, back riser support reinforcement plate and back lifting hydraulic cylinder; Rear side at installing rack is fixed with a pair of rear support stand, between a pair of rear support stand, be hinged with back riser action wheel, there is a pair of back riser to support reinforcement plate at the two ends of back riser action wheel, the lower end that a pair of back riser supports reinforcement plate is fixed together with the two ends that back riser action is taken turns respectively, support at a pair of back riser between the upper end of reinforcement plate by bearing be equipped with can rotate and with the corresponding driven riser tugboat of active riser tugboat, rear side at installing rack is installed with the back lifting hydraulic cylinder, and the outer end of the piston rod of back lifting hydraulic cylinder is fixedly installed togather with back riser action wheel and back riser action wheel is rotated.
3. weldment according to claim 1 and 2 is carried lifting device, it is characterized in that big dolioform in narrow two in the middle of initiatively riser tugboat and driven riser tugboat all are.
4. weldment according to claim 1 and 2 is carried lifting device, it is characterized in that there is the open slot that can place active roller and return idler at the middle part of installing rack, and at least four pairs bearing block installing hole is arranged on the installing rack of open slot both sides.
5. weldment according to claim 3 is carried lifting device, it is characterized in that there is the open slot that can place active roller and return idler at the middle part of installing rack, and at least four pairs bearing block installing hole is arranged on the installing rack of open slot both sides.
6. weldment according to claim 1 and 2 is carried lifting device, it is characterized in that being equipped with on the installing rack pre-compressing device, and this pre-compressing device comprises interior pipe, outer tube, pinch roller cantilever, pinch roller gripper shoe, pinch roller and pinch roller hydraulic cylinder; The lower end of interior pipe is fixedly mounted on the installing rack, in interior pipe, leading screw is arranged, the upper end of leading screw is stretched out the top of interior pipe and is installed with rotary handle, on the screw thread of leading screw, nut is installed, the slotted hole that mutual correspondence is arranged on inner tubal wall vertically, the outside at interior pipe is set with outer tube, outer tube and nut are fixedly installed togather and can move up and down along slotted hole, the left part of pinch roller cantilever has left opening, the middle part of outer tube is positioned at left opening and hinged with the pinch roller cantilever, right part at the pinch roller cantilever has right opening, on right opening, be installed with connecting axle, be set with a pair of pinch roller gripper shoe at the two ends of connecting axle, the a pair of pinch roller that can compress pipe fitting is installed between a pair of pinch roller gripper shoe, left end at left opening is installed with fixed axis, is installed with the pinch roller hydraulic cylinder on installing rack, and the upper end and the fixed axis of the piston head of pinch roller hydraulic cylinder are fixedly installed togather.
7. weldment according to claim 3 is carried lifting device, it is characterized in that being equipped with on the installing rack pre-compressing device, and this pre-compressing device comprises interior pipe, outer tube, pinch roller cantilever, pinch roller gripper shoe, pinch roller and pinch roller hydraulic cylinder; The lower end of interior pipe is fixedly mounted on the installing rack, in interior pipe, leading screw is arranged, the upper end of leading screw is stretched out the top of interior pipe and is installed with rotary handle, on the screw thread of leading screw, nut is installed, the slotted hole that mutual correspondence is arranged on inner tubal wall vertically, the outside at interior pipe is set with outer tube, outer tube and nut are fixedly installed togather and can move up and down along slotted hole, the left part of pinch roller cantilever has left opening, the middle part of outer tube is positioned at left opening and hinged with the pinch roller cantilever, right part at the pinch roller cantilever has right opening, on right opening, be installed with connecting axle, be set with a pair of pinch roller gripper shoe at the two ends of connecting axle, the a pair of pinch roller that can compress pipe fitting is installed between a pair of pinch roller gripper shoe, left end at left opening is installed with fixed axis, is installed with the pinch roller hydraulic cylinder on installing rack, and the upper end and the fixed axis of the piston head of pinch roller hydraulic cylinder are fixedly installed togather.
8. weldment according to claim 4 is carried lifting device, it is characterized in that being equipped with on the installing rack pre-compressing device, and this pre-compressing device comprises interior pipe, outer tube, pinch roller cantilever, pinch roller gripper shoe, pinch roller and pinch roller hydraulic cylinder; The lower end of interior pipe is fixedly mounted on the installing rack, in interior pipe, leading screw is arranged, the upper end of leading screw is stretched out the top of interior pipe and is installed with rotary handle, on the screw thread of leading screw, nut is installed, the slotted hole that mutual correspondence is arranged on inner tubal wall vertically, the outside at interior pipe is set with outer tube, outer tube and nut are fixedly installed togather and can move up and down along slotted hole, the left part of pinch roller cantilever has left opening, the middle part of outer tube is positioned at left opening and hinged with the pinch roller cantilever, right part at the pinch roller cantilever has right opening, on right opening, be installed with connecting axle, be set with a pair of pinch roller gripper shoe at the two ends of connecting axle, the a pair of pinch roller that can compress pipe fitting is installed between a pair of pinch roller gripper shoe, left end at left opening is installed with fixed axis, is installed with the pinch roller hydraulic cylinder on installing rack, and the upper end and the fixed axis of the piston head of pinch roller hydraulic cylinder are fixedly installed togather.
9. weldment according to claim 5 is carried lifting device, it is characterized in that being equipped with on the installing rack pre-compressing device, and this pre-compressing device comprises interior pipe, outer tube, pinch roller cantilever, pinch roller gripper shoe, pinch roller and pinch roller hydraulic cylinder; The lower end of interior pipe is fixedly mounted on the installing rack, in interior pipe, leading screw is arranged, the upper end of leading screw is stretched out the top of interior pipe and is installed with rotary handle, on the screw thread of leading screw, nut is installed, the slotted hole that mutual correspondence is arranged on inner tubal wall vertically, the outside at interior pipe is set with outer tube, outer tube and nut are fixedly installed togather and can move up and down along slotted hole, the left part of pinch roller cantilever has left opening, the middle part of outer tube is positioned at left opening and hinged with the pinch roller cantilever, right part at the pinch roller cantilever has right opening, on right opening, be installed with connecting axle, be set with a pair of pinch roller gripper shoe at the two ends of connecting axle, the a pair of pinch roller that can compress pipe fitting is installed between a pair of pinch roller gripper shoe, left end at left opening is installed with fixed axis, is installed with the pinch roller hydraulic cylinder on installing rack, and the upper end and the fixed axis of the piston head of pinch roller hydraulic cylinder are fixedly installed togather.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201020174796XU CN201669517U (en) | 2010-04-29 | 2010-04-29 | Weldment conveying and lifting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201020174796XU CN201669517U (en) | 2010-04-29 | 2010-04-29 | Weldment conveying and lifting device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201669517U true CN201669517U (en) | 2010-12-15 |
Family
ID=43326929
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201020174796XU Expired - Fee Related CN201669517U (en) | 2010-04-29 | 2010-04-29 | Weldment conveying and lifting device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201669517U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103008962A (en) * | 2012-12-24 | 2013-04-03 | 滁州永强汽车制造有限公司 | Method for welding wave blocking plate and auxiliary equipment for welding wave blocking plate |
| CN103586618A (en) * | 2013-09-11 | 2014-02-19 | 郑军林 | Large pipe welding platform |
| CN104353962A (en) * | 2014-11-04 | 2015-02-18 | 国家电网公司 | Axial movement device for welding of bus tube |
| CN104400266A (en) * | 2014-11-04 | 2015-03-11 | 国家电网公司 | Bracket device for welding bus tube |
-
2010
- 2010-04-29 CN CN201020174796XU patent/CN201669517U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103008962A (en) * | 2012-12-24 | 2013-04-03 | 滁州永强汽车制造有限公司 | Method for welding wave blocking plate and auxiliary equipment for welding wave blocking plate |
| CN103586618A (en) * | 2013-09-11 | 2014-02-19 | 郑军林 | Large pipe welding platform |
| CN104353962A (en) * | 2014-11-04 | 2015-02-18 | 国家电网公司 | Axial movement device for welding of bus tube |
| CN104400266A (en) * | 2014-11-04 | 2015-03-11 | 国家电网公司 | Bracket device for welding bus tube |
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Granted publication date: 20101215 Termination date: 20170429 |