CN108609488A - Automatic locking - Google Patents
Automatic locking Download PDFInfo
- Publication number
- CN108609488A CN108609488A CN201810635638.0A CN201810635638A CN108609488A CN 108609488 A CN108609488 A CN 108609488A CN 201810635638 A CN201810635638 A CN 201810635638A CN 108609488 A CN108609488 A CN 108609488A
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- CN
- China
- Prior art keywords
- clamping
- matrix
- connecting lever
- hanging piece
- face
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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- 230000005540 biological transmission Effects 0.000 claims abstract description 14
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- 241000276425 Xiphophorus maculatus Species 0.000 abstract description 3
- 238000000034 method Methods 0.000 description 6
- 238000010586 diagram Methods 0.000 description 2
- 244000025254 Cannabis sativa Species 0.000 description 1
- 235000012766 Cannabis sativa ssp. sativa var. sativa Nutrition 0.000 description 1
- 235000012765 Cannabis sativa ssp. sativa var. spontanea Nutrition 0.000 description 1
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- 230000009286 beneficial effect Effects 0.000 description 1
- 235000009120 camo Nutrition 0.000 description 1
- 235000005607 chanvre indien Nutrition 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
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- 239000011487 hemp Substances 0.000 description 1
- 238000011065 in-situ storage Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000011900 installation process Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 229920001778 nylon Polymers 0.000 description 1
- 210000000515 tooth Anatomy 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C1/00—Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith for transmitting lifting forces to articles or groups of articles
- B66C1/10—Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith for transmitting lifting forces to articles or groups of articles by mechanical means
- B66C1/42—Gripping members engaging only the external or internal surfaces of the articles
- B66C1/44—Gripping members engaging only the external or internal surfaces of the articles and applying frictional forces
- B66C1/442—Gripping members engaging only the external or internal surfaces of the articles and applying frictional forces actuated by lifting force
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C1/00—Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith for transmitting lifting forces to articles or groups of articles
- B66C1/10—Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith for transmitting lifting forces to articles or groups of articles by mechanical means
- B66C1/42—Gripping members engaging only the external or internal surfaces of the articles
- B66C1/44—Gripping members engaging only the external or internal surfaces of the articles and applying frictional forces
- B66C1/48—Gripping members engaging only the external or internal surfaces of the articles and applying frictional forces to vertical edge portions of sheets, tubes, or like thin or thin-walled articles
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Load-Engaging Elements For Cranes (AREA)
Abstract
The present invention relates to a kind of automatic lockings,Automatic locking includes matrix,The clamping face being bonded with the lifting plate face of suspended object is provided on matrix,Matrix is also hinged with clamping connecting lever,Connecting lever, which is clamped, to be had in oscillating stroke towards clamping face movement so that suspended object to be pressed on to the clamping part on clamping face,Also there is the driving portion for being made clamping connecting lever rotate relative to matrix by external force,Guiding movement is equipped with hanging piece in described matrix,The hanging piece drives clamping connecting lever to realize the clamping engagement with clamping face relative to matrix rotation when being relatively moved with matrix with driving portion transmission cooperation to be hung in hanging piece,Matrix can opposite hanging piece movement due to dead weight,Hanging piece relative to matrix move during,Clamping connecting lever can be driven to be rotated relative to matrix,Realize clamping engagement,Clamping face and clamping part, which can stablize the suspended object of platy structure, to be lifted by crane,The self structure of suspended object need not be destroyed,It operates fairly simple,It is reliable and stable.
Description
Technical field
The present invention relates to a kind of automatic lockings.
Background technology
In ongoing operations, the case where needing large thin-wall platy structure flat objects to be lifted is frequently encountered, and plate
Shape flat objects itself do not have hole for hoist or fabrication hole, therefore the fixed spreaders such as suspender belt, lifting rope can not be used to being risen by lifting object
It hangs, manpower can not fulfil assignment again at this time, it is necessary to it could be completed by lifting, China lifts large-scale sheet member at present, if
It is bundled using hook directly hanging or using the flexible auxiliary hanging belt such as the rope made of hemp or nylon tape after installation lifting lug after flat case again with hanging
Hook connects lifting, in practical hoisting process, since sheet member Chang Xiang local strengths are inadequate, overall stiffness is weaker, easily
It generates lifting deformation, influence product quality.Although opposite can reduce lifting by the way of auxiliary hanging belt binding lifting to become
Shape, but it is not easy to control to lift center of gravity, cannot not only be completely secured that horizontal Hoisting Position, in turn result in subsequent installation process opposite
Difficulty, and early binding is complicated for operation, the lifting completion later stage is not easy to dismantle, and there is also auxiliary while lifting less efficient
The security risk that hanging belt breaks off relations.
Invention content
The purpose of the present invention is to provide a kind of automatic locking, with when solving that board-like suspended object is without lifting lug in the prior art without
Method stablizes the problem of safety lifting.
To achieve the above object, the technical solution of automatic locking of the present invention is:
Automatic locking, including matrix are provided with the clamping face being bonded with the lifting plate face of suspended object on matrix, and matrix is also hinged with
Connecting lever is clamped, clamping connecting lever has to be moved towards clamping face suspended object to be pressed on to the clamping on clamping face in oscillating stroke
Portion, also has a driving portion for being made clamping connecting lever rotate relative to matrix by external force, and guiding movement is equipped in described matrix
Hanging piece, the hanging piece drive clamping connecting lever phase when being relatively moved with matrix with driving portion transmission cooperation to be hung in hanging piece
The clamping engagement with clamping face is realized to matrix rotation.
Further, in order to meet the transmission stability of each parts cooperation, integrally-built power transmission is more accurate, side
Civilian dress is matched, and realizes transmission cooperation by drive link between the driving portion and hanging piece, the one end for being driven cooperation hingedly connects with hanging piece
It connects, the other end has the connecting lever articulated section with clamping connecting lever articulated connection.
Further, in order to facilitate the movement of hanging piece, matrix is equipped with sliding slot, and there is hanging piece sliding to be assemblied in sliding slot
Guide rod portion.
Further, in order to realize that integrally-built compactedness, the driving portion and the retained part are located at clamping and turn
The both sides of the hinge axes of arm.
Further, it in order to realize Automatic-clamping, defines hanging piece and is moved up and down with respect to matrix, clamping face is arranged in hanging piece
Lower section, the clamping part opposite with clamping face can be clamped to lower swing.Clipped object weight is bigger, to the drawing friction of clamping part
Bigger, clamping force is bigger.
Further, it in order to realize that clamping connecting lever and clamping face automatically disengage, is additionally provided in described matrix for folder
Hold the resetting spring that connecting lever applies the active force for making hinged connecting lever be rotated backwards to clamping face.
Further, it connects for convenience, is connected with kinematic link between the driving portion and hanging piece, the one of kinematic link
End is articulated and connected with hanging piece, and the other end has the connecting lever articulated section with clamping connecting lever articulated connection, and kinematic link is T-bar, packet
Rail segment and montant section are included, the connecting lever articulated section is arranged in one end of rail segment, and the resetting spring is connected to rail segment
Between the other end and matrix.
Further, the problem of cannot achieve is unclamped in dead weight in order to prevent, is additionally provided in described matrix and is connected with clamping connecting lever
The pull rod that releases for pulling clamping connecting lever that clamping connecting lever is made to be rotated backwards to clamping face connect.
Further, suspended object is fallen in order to prevent, the clamping part with clamping face coordinate realize clamp end face and/
Or clamping face is equipped with and increases structure of rubbing.
Further, it manufactures for convenience, the structure of rubbing that increases is the locking teeth being arranged in the corresponding end surface of clamping part.
The beneficial effects of the invention are as follows:Compared with the prior art, automatic locking according to the present invention, it is hinged on matrix
Connecting lever is clamped, and clamping face and the hanging piece with clamping connecting lever transmission cooperation are set on matrix, was operated in this way actual
Cheng Zhong, when hanging piece is lifted by crane, matrix due to dead weight can the movement of opposite hanging piece can be driven during hanging piece is with respect to matrix movement
Connecting lever is clamped to rotate relative to matrix, the clamping face clamping engagement being finally clamped on the clamping part and matrix of connecting lever is realized to quilt
The clamping of hanging object, and clamping face and clamping part are set, the suspended object of platy structure can be stablized and lift by crane, it in addition need not be
Hoisting structure is designed, need not also destroy the self structure of suspended object, operation is fairly simple, reliable and stable.And this dependence
The automatic structure for realizing the lifting to suspended object, in actual operating process, since suspended object is clamped on clamping face, then by
Hanging object is heavier, then chucking power is bigger, ensures stability and the safety of lifting;The structure by dead weight lifting this simultaneously only has
It can just release in the case where putting down suspended object, therefore the automatic locking also has certain fool-proof design, can prevent from anticipating
It is outer operation and cause the accident there is a situation where.
Description of the drawings
Fig. 1 is the specific embodiment structural schematic diagram of the automatic locking of the present invention;
Fig. 2 is the structural schematic diagram for removing matrix in Fig. 1.
Reference sign:1- matrixes;11- sliding slots;12- clamping faces;13- clamping opening;2- hanging pieces;21- sunpenders portion;3- is driven
Bar;31- resets interconnecting piece;32- connecting levers articulated section;Connecting lever is clamped in 4-;41- driving portions;42- clamping parts;43- locking teeths;5- is multiple
Position spring;6- releases pull rod.
Specific implementation mode
Embodiments of the present invention are described further below in conjunction with the accompanying drawings.
The specific embodiment of the automatic locking of the present invention, as shown in Figure 1 to Figure 2, the automatic locking are applied to suspended object
During lifting for template thin-walled parts, including matrix 1 and the hanging piece 2, the clamping connecting lever 4 etc. that are arranged on matrix 1.
Wherein matrix 1 is the carrier is carrier of other parts, and in the present embodiment, matrix 1 is plate profile structure, and above-mentioned hangs
Part 2, clamping connecting lever 4 are installed on matrix 1, and in other embodiments, the specific constructive form of matrix 1 is not construed as limiting, ability
Field technique personnel can its arbitrarily devised structure according to actual needs.It defines suspended object to be lifted by crane along the vertical direction, above-mentioned hangs
Vertically defence line sliding is assemblied on matrix 1 part 2, while connecting lever 4 is clamped and is hinged on matrix 1, and the setting of connecting lever 4 is clamped and is hanging
The lower section of part 2.
The lower end of matrix 1 is provided with clamping opening 13, convex block is inwardly extended on the side side wall of clamping opening 13, convex block
The side wall for being parallel to clamping opening 13 constitutes and is bonded concordant clamping face 12 for the plate face with suspended object, passes through and clamping face is arranged
12, so as to be bonded with the plate face of suspended object, realize the lifting to thin-walled plate-like articles.Corresponding clamping connecting lever 4 is hinged on base
The side of the other side side wall positioned at clamping opening 13 of body 1, clamping connecting lever 4 have in rotational travel and can be moved towards clamping face 12
Suspended object to be pressed on to the clamping part 42 on clamping face 12, also have is made clamping connecting lever 4 be rotated relative to matrix 1 by external force
Driving portion 41.Clamping part 42 lifts by crane suspended object with 12 clamping engagement of clamping face, that is to say, that is turned in the driving clamping of driving portion 41
During arm 4 moves, clamping part opposite with clamping face can be clamped to lower swing, and clamping part 42 can be put towards clamping face 12
It is dynamic, and suspended object can be pressed on clamping face 12, it can also be swung backwards to clamping face 12, to make suspended object be detached from clamping.
In the present embodiment simultaneously, clamping part 42 sets up separately with driving portion 41 in the both sides of the hinge axes of clamping connecting lever 4, can save in this way
Whole structure size is saved, ensures the compactedness of structure.Certainly in other embodiments, clamping part 42 can be set with driving portion 41
It sets in the same side of hinge axes.
It is vertically extended on matrix 1 simultaneously equipped with sliding slot 11, hanging piece 2 has is oriented to sliding assembly with sliding slot 11
Sunpender portion 21 is slid by the guiding of sunpender portion 21 and hanging piece 2 and is assembled, can be in the actual course of work, and hanging piece 2 is being risen
When hanging, matrix 1 can be since hanging piece 2 moves down backwards for dead weight.
In the present embodiment, the Automatic-clamping between the clamping part 42 and clamping face 12 in order to realize clamping connecting lever 4, to
Automatic locking is formed, also there is drive mechanism between hanging piece 2 and clamping connecting lever 4, that is to say, that the drive of hanging piece 2 and clamping connecting lever 4
The dynamic transmission of portion 41 cooperation drives clamping connecting lever 4 to be rotated relative to matrix 1 and realizes when being relatively moved with matrix 1 to be hung in hanging piece 2
With the clamping engagement of clamping face 12.And the transmission stability for using the setting of drive mechanism to disclosure satisfy that each parts coordinate,
Integrally-built power transmission is more accurate, and fiting effect is good.Certainly, in other embodiments, drive mechanism can not also be used, directly
Transmission will be connected by connecing between driving portion 41 and hanging piece 2.
Drive mechanism is drive link 3, and the upper end of drive link 3 is articulated and connected with the sunpender portion 21 of hanging piece 2, and lower end has and folder
Hold the connecting lever articulated section 32 of the articulated connection of connecting lever 4.In this way can be in actual operating process, when lifting by crane hanging piece 2, matrix
1 since opposite hanging piece 2 of conducting oneself with dignity moves down, during hanging piece 2 is moved up with respect to matrix 1, drive the upper end of drive link 3 to
Upper movement, the lower end stress of drive link 3 can drive the driving portion 41 of clamping connecting lever 4 to rotate clockwise at this time, and then clamping is turned
The clamping part 42 of arm 4 ensures the auto lock between clamping part 42 and clamping face 12 together with 12 compression fit of clamping face,
It can be achieved with the lifting to plate suspended object.As long as this automatic locking lifts by crane hanging piece 2, even if not applying to clamping connecting lever 4
In the case of external force also can matrix 1 conducted oneself with dignity in the case of clamping connecting lever 4 is tensed, and connecting lever 4 and clamping face 12 is clamped
Between clamping suspended object it is heavier, chucking power is bigger.That is only the case where the pulling force that releases is more than the dead weight of suspended object
Under can will clamping connecting lever 4 reversely pull, be basically the fool proof that only can just release in the case where suspended object is put down
Design, to prevent the generation to cause the accident by accidental operation.
The purpose for needing to open clamping face 12 and clamping part 42 automatically is put down in suspended object in order to realize simultaneously, in this reality
It applies in example, is provided on matrix 1 for applying answering for the active force for making hinged connecting lever rotate backwards to clamping face 12 to clamping connecting lever 4
Position spring 5 can be ensured by the setting of resetting spring 5 by automatic locking Panasonic or when putting down suspended object, resetting spring 5
Clamping connecting lever 4 can be driven to rotate backward and clamping part 42 is driven to deviate from clamping face 12.In the present embodiment, it is driven to realize
Stability and compact type, resetting spring 5 be connected between drive link 3 and matrix 1, be specifically above-mentioned drive link 3
For T-shaped structure, including rail segment and montant section, montant end is articulated and connected backwards to one end of rail segment and hanging piece 2, and above-mentioned turns
Arm articulated section 32 is arranged in one end of rail segment, and resetting spring 5 is then connected between the other end of rail segment and matrix 1, right
The other end for the rail segment answered is formed by reset interconnecting piece 31.The action of drive link 3 can be driven in this way and then restores hanging piece 2 extremely
It is in situ, and drive link 3 can also drive clamping connecting lever 4 to rotate backward, realization is released.Certainly, in other embodiments, resetting spring
5 can also be connected directly between on clamping connecting lever 4, can also be connected on hanging piece 2.
Simultaneously in actual application process, may exist since chucking power is larger, cause dead weight to be unclamped and cannot achieve,
Resetting spring 5 can not act on to clamping connecting lever 4 on so that it is rotated backward.This is to need to provide certain big external force to connecting lever is clamped
4 rotate backward.At this moment the active force of resetting spring 5 is not enough to pull clamping connecting lever 4, therefore, in the present embodiment, above-mentioned folder
Hold the pull rod 6 that releases that clamping connecting lever 4 is rotated backwards to clamping face 12 when be connected on connecting lever 4 for pulling clamping connecting lever 4.It can be straight
It connected external force and was applied to and released on pull rod 6, clamping connecting lever 4 is pulled into rotation.
It, will not be between clamping connecting lever 4 and clamping face 12 meanwhile in order to ensure suspended object after being lifted on clamping face 12
It is detached from, in the present embodiment, clamping part 42, which is equipped with, increases structure of rubbing, and it is the correspondence clamping face being arranged in clamping part 42 to increase structure of rubbing
Locking teeth 43 on 12 side end face, certainly, in other embodiments, increasing structure of rubbing can also be arranged on clamping face 12,
It can also be respectively provided in clamping face 12 and clamping part 42, it may be to be arranged in the corresponding end surface of clamping connecting lever 4 to increase structure of rubbing
The structures such as locking pad.
Claims (10)
1. automatic locking, it is characterised in that:Including matrix, the clamping being bonded with the lifting plate face of suspended object is provided on matrix
Face, matrix are also hinged with clamping connecting lever, and clamping connecting lever has to be moved towards clamping face to compress suspended object in oscillating stroke
Clamping part on clamping face also has the driving portion for being made clamping connecting lever rotate relative to matrix by external force, described matrix
Upper guiding movement is equipped with hanging piece, and the hanging piece is relatively moved with being hung in hanging piece with matrix with driving portion transmission cooperation
When drive clamping connecting lever with respect to matrix rotation realize and clamping face clamping engagement.
2. automatic locking according to claim 1, it is characterised in that:Pass through drive link reality between the driving portion and hanging piece
Now transmission cooperation, the one end and hanging piece for being driven cooperation are articulated and connected, and there is the other end connecting lever with clamping connecting lever articulated connection to cut with scissors
Socket part.
3. automatic locking according to claim 1 or 2, it is characterised in that:Matrix is equipped with sliding slot, and there is hanging piece sliding to fill
Fit over the guide rod portion in sliding slot.
4. automatic locking according to claim 1 or 2, it is characterised in that:The driving portion and the retained part are located at
The both sides of the hinge axes of connecting lever are clamped.
5. automatic locking according to claim 4, it is characterised in that:It defines hanging piece to move up and down with respect to matrix, clamping face
It is arranged in the lower section of hanging piece, the clamping part opposite with clamping face can be clamped to lower swing.
6. automatic locking according to claim 1 or 2, it is characterised in that:It is additionally provided in described matrix for being turned to clamping
Arm applies the resetting spring for the active force for making hinged connecting lever be rotated backwards to clamping face.
7. automatic locking according to claim 6, it is characterised in that:Transmission is connected between the driving portion and hanging piece to connect
Bar, one end and the hanging piece of kinematic link are articulated and connected, and the other end has the connecting lever articulated section with clamping connecting lever articulated connection, transmission
Connecting rod is T-bar, including rail segment and montant section, and the connecting lever articulated section is arranged in one end of rail segment, the resetting spring
It is connected between the other end of rail segment and matrix.
8. automatic locking according to claim 1 or 2, it is characterised in that:It is additionally provided in described matrix and connects with clamping connecting lever
The pull rod that releases for pulling clamping connecting lever that clamping connecting lever is made to be rotated backwards to clamping face connect.
9. automatic locking according to claim 1 or 2, it is characterised in that:Coordinating with clamping face for the clamping part is realized
The end face of clamping and/or clamping face, which are equipped with, increases structure of rubbing.
10. automatic locking according to claim 9, it is characterised in that:The structure of rubbing that increases is pair being arranged in clamping part
Answer the locking teeth on end face.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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CN201810635638.0A CN108609488A (en) | 2018-06-20 | 2018-06-20 | Automatic locking |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201810635638.0A CN108609488A (en) | 2018-06-20 | 2018-06-20 | Automatic locking |
Publications (1)
Publication Number | Publication Date |
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CN108609488A true CN108609488A (en) | 2018-10-02 |
Family
ID=63665419
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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CN201810635638.0A Pending CN108609488A (en) | 2018-06-20 | 2018-06-20 | Automatic locking |
Country Status (1)
Country | Link |
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CN (1) | CN108609488A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN109437013A (en) * | 2018-12-25 | 2019-03-08 | 永兴特种不锈钢股份有限公司 | A kind of super large grinding wheel saw blade suspender |
CN113716467A (en) * | 2021-07-19 | 2021-11-30 | 杭州大杰智能传动科技有限公司 | Automatic tower crane clamp switching device and method based on material characteristic analysis |
Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
ES195661U (en) * | 1970-02-16 | 1975-02-16 | Interlas Nv | Device for grading the load in suspension hook elevators. (Machine-translation by Google Translate, not legally binding) |
CN2122141U (en) * | 1992-02-01 | 1992-11-18 | 王丕洪 | Pull type handling grippers having pre-fastening property |
JP2004269255A (en) * | 2003-02-20 | 2004-09-30 | Elephant Chain Block Co Ltd | Hoisting tool and take up apparatus |
CN101049886A (en) * | 2007-05-11 | 2007-10-10 | 四川东风电机厂有限公司 | New type hook in use for welding |
CN101519177A (en) * | 2009-04-07 | 2009-09-02 | 姜文岐 | Hanging hook with safe locking mechanism |
CN204198257U (en) * | 2014-10-15 | 2015-03-11 | 长葛市华泰建筑机械厂 | Steel plate erects hanging clamp |
CN208516778U (en) * | 2018-06-20 | 2019-02-19 | 河南森源电气股份有限公司 | A kind of automatic locking |
-
2018
- 2018-06-20 CN CN201810635638.0A patent/CN108609488A/en active Pending
Patent Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
ES195661U (en) * | 1970-02-16 | 1975-02-16 | Interlas Nv | Device for grading the load in suspension hook elevators. (Machine-translation by Google Translate, not legally binding) |
CN2122141U (en) * | 1992-02-01 | 1992-11-18 | 王丕洪 | Pull type handling grippers having pre-fastening property |
JP2004269255A (en) * | 2003-02-20 | 2004-09-30 | Elephant Chain Block Co Ltd | Hoisting tool and take up apparatus |
CN101049886A (en) * | 2007-05-11 | 2007-10-10 | 四川东风电机厂有限公司 | New type hook in use for welding |
CN101519177A (en) * | 2009-04-07 | 2009-09-02 | 姜文岐 | Hanging hook with safe locking mechanism |
CN204198257U (en) * | 2014-10-15 | 2015-03-11 | 长葛市华泰建筑机械厂 | Steel plate erects hanging clamp |
CN208516778U (en) * | 2018-06-20 | 2019-02-19 | 河南森源电气股份有限公司 | A kind of automatic locking |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN109437013A (en) * | 2018-12-25 | 2019-03-08 | 永兴特种不锈钢股份有限公司 | A kind of super large grinding wheel saw blade suspender |
CN109437013B (en) * | 2018-12-25 | 2024-06-07 | 湖州永兴特种不锈钢有限公司 | Super-large grinding wheel saw blade lifting appliance |
CN113716467A (en) * | 2021-07-19 | 2021-11-30 | 杭州大杰智能传动科技有限公司 | Automatic tower crane clamp switching device and method based on material characteristic analysis |
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Application publication date: 20181002 |