CN115108448B - A workpiece quenching lifting tool for cranes - Google Patents
A workpiece quenching lifting tool for cranesInfo
- Publication number
- CN115108448B CN115108448B CN202210973506.5A CN202210973506A CN115108448B CN 115108448 B CN115108448 B CN 115108448B CN 202210973506 A CN202210973506 A CN 202210973506A CN 115108448 B CN115108448 B CN 115108448B
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- Prior art keywords
- assembly
- telescopic frame
- connecting plates
- frame assembly
- transmission
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Classifications
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- 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
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Load-Engaging Elements For Cranes (AREA)
Abstract
本发明公开了一种起重机用工件淬火吊具，包括：吊架，与起重机的驱动端相连；吊点，固定设置于工件的顶部；伸缩架组件，沿竖直方向可伸缩的连接于吊架的底端，伸缩架组件的底端设置有开口；传动组件，设置于伸缩架组件内，位于开口的上方；转锁组件，设置于伸缩架组件上，用于伸缩架组件收缩后对其进行锁定；卡抱组件，固定设置于开口的两侧，用于随开口的闭合抱紧吊点。本发明的吊具采用纯机械结构，实现了工件的自动吊起与脱离，无需人工辅助，提高了生产效率，消除了不必要的安全隐患。
This invention discloses a workpiece quenching lifting device for cranes, comprising: a lifting frame connected to the drive end of the crane; a lifting point fixedly disposed on the top of the workpiece; a telescopic frame assembly vertically telescopically connected to the bottom end of the lifting frame, the bottom end of the telescopic frame assembly having an opening; a transmission assembly disposed within the telescopic frame assembly, located above the opening; a rotary lock assembly disposed on the telescopic frame assembly, used to lock the telescopic frame assembly after it retracts; and a clamping assembly fixedly disposed on both sides of the opening, used to clamp the lifting point as the opening closes. The lifting device of this invention adopts a purely mechanical structure, realizing automatic lifting and detachment of the workpiece without manual assistance, improving production efficiency and eliminating unnecessary safety hazards.
Description
Technical Field
The invention relates to the technical field of lifting equipment, in particular to a workpiece quenching lifting appliance for a crane.
Background
The large-volume steel structure workpiece needs quenching treatment in the processing process so as to improve the hardness and strength of the steel structure workpiece. The tool has large volume and heavy weight, and needs to be lifted by a crane and placed into a heating furnace. In the hoisting process, the lifting hook of the crane is required to be connected with the upper part of the workpiece by adopting an auxiliary tool, the whole process is used for manually assisting in completing the hooking and unhooking, the efficiency is low, and the workpiece is manually involved in the hooking when being discharged from the heating furnace, and the workpiece is required to be subjected to high-temperature roasting and scalding risks. The operation of workers can be influenced under the high-temperature environment, if the hoisting is incorrect, safety accidents are easy to occur, and great potential safety hazards exist.
Disclosure of Invention
In view of the above-mentioned drawbacks or shortcomings in the prior art, it is desirable to provide a workpiece quenching sling for a crane, which adopts a pure mechanical structure, realizes automatic lifting and separating of a workpiece, does not need manual assistance, improves production efficiency, and eliminates unnecessary potential safety hazards.
The invention provides a workpiece quenching lifting appliance for a crane, which comprises the following components:
the hanging bracket is connected with the driving end of the crane;
The lifting point is fixedly arranged at the top of the workpiece and used for lifting the workpiece through the lifting point;
The telescopic frame assembly is connected to the bottom end of the hanger in a telescopic manner along the vertical direction, the telescopic frame assembly is in an extension state under the action of gravity of the telescopic frame assembly, an opening is formed in the bottom end of the telescopic frame assembly, and the opening is opened along with the contraction of the telescopic frame assembly and is closed along with the extension of the telescopic frame assembly; the telescopic bracket assembly comprises a fixed shaft horizontally and fixedly arranged at the bottom end of the hanging bracket, a movable shaft is arranged in parallel under the fixed shaft, first connecting plates are symmetrically arranged at two ends of the movable shaft, the middle part of each first connecting plate is rotationally sleeved with the movable shaft, second connecting plates are rotationally sleeved on the outer sides of the first connecting plates on the movable shaft, the first connecting plates and the second connecting plates which are positioned at the same end of the movable shaft are arranged in an X shape, a first shaft rod is arranged between the top ends of the two first connecting plates, a second shaft rod is arranged between the top ends of the two second connecting plates, third connecting plates are symmetrically arranged at two ends between the first shaft rod and the fixed shaft, the third connecting plates are rotationally sleeved with the fixed shaft and the first shaft rod respectively, fourth connecting plates are symmetrically arranged at two ends between the second shaft rod and the fixed shaft, the fourth connecting plates are rotationally sleeved with the fixed shaft and the second shaft rod respectively, and the openings are formed between the bottom ends of the two first connecting plates and the bottom ends of the two second connecting plates;
The transmission assembly is arranged in the telescopic frame assembly and is positioned above the opening, and the transmission assembly falls down to squeeze the hanging point to drive the opening to open; the transmission assembly comprises two transmission plates, the bottom ends of the transmission plates are fixedly sleeved with the movable shaft, and the top ends of the transmission plates are sleeved with the fixed shaft through vertical long holes;
The rotary lock assembly is arranged on the telescopic frame assembly and is used for locking the telescopic frame assembly after the telescopic frame assembly contracts, the rotary lock assembly rises along with the extrusion lifting point of the transmission assembly each time to finish the switching of locking and unlocking, the rotary lock assembly comprises a sleeve arranged between the fixed shaft and the movable shaft, the sleeve is fixedly connected with the fixed shaft through a connecting frame, a lower steering sleeve is fixedly sleeved in the sleeve, four lower steering grooves are uniformly distributed at the top end of the lower steering sleeve along the circumferential direction, an upper steering sleeve is fixedly sleeved in the sleeve and is positioned above the lower steering sleeve, four upper steering grooves are uniformly distributed at the bottom end of the upper steering sleeve along the circumferential direction, the upper steering grooves and the lower steering grooves are arranged in a staggered manner, the bottoms of the sleeve are provided with steering columns extending into the lower steering sleeve and the upper steering sleeve, the two sides of the steering columns are symmetrically provided with transmission columns extending into the lower steering grooves, the transmission columns are sequentially extruded by the upper steering grooves and the lower steering grooves, the transmission columns are sequentially driven by the upper steering grooves and the lower steering grooves, the transmission columns are sequentially provided with the width of the T-shaped clamping blocks, the width of the T-shaped clamping blocks is larger than the width of the connecting plates is fixed by the length of the clamping blocks, and the width of the clamping blocks are fixed by the width of the clamping blocks;
and the clamping assembly is fixedly arranged on two sides of the opening and used for clamping the hanging point along with the closing of the opening.
Further, the top of hoisting point is provided with the locating hole, the bottom of removal axle corresponds the locating hole is fixed to be provided with the locating lever, the external diameter of locating lever bottom reduces gradually from top to bottom and forms the direction head.
Furthermore, the hanging point adopts an upright post fixedly welded at the top of the workpiece, and a circle of ring grooves are formed in the upright post.
Further, the clamping assembly comprises clamping plates symmetrically arranged on two sides of the opening, and semicircular clamping grooves matched with the annular grooves are formed in the inner sides of the clamping plates.
Further, the hanging bracket, the hanging point, the telescopic bracket component, the transmission component, the rotary lock component and the clamping component are all made of high-temperature resistant alloy materials.
Compared with the prior art, the invention has the beneficial effects that:
The lifting appliance is provided with the telescopic frame assembly, the transmission assembly and the rotary lock assembly, the lifting appliance is lifted through the lifting points fixed on the workpiece, the automatic cohesion and unlocking of the lifting points are realized through the cooperation among the assemblies, the lifting of the workpiece can be rapidly completed, the production efficiency is effectively improved, the lifting appliance adopts a pure mechanical structure, the lifting appliance is safe and reliable, the working process is not needed to be assisted manually, the operation of workers in a high-temperature environment is avoided, and unnecessary potential safety hazards are eliminated.
It should be understood that the description in this summary is not intended to limit the critical or essential features of the embodiments of the invention, nor is it intended to limit the scope of the invention. Other features of the present invention will become apparent from the description that follows.
Drawings
Other features, objects and advantages of the present invention will become more apparent upon reading of the detailed description of non-limiting embodiments, made with reference to the accompanying drawings in which:
FIG. 1 is a schematic structural view of a spreader;
fig. 2 is a schematic view of the structure of the lifting appliance in a state that the bottom end opening is opened;
FIG. 3 is a schematic diagram of the front view of the spreader;
FIG. 4 is a schematic side view of a spreader;
FIG. 5 is a schematic structural view of a twist lock assembly;
FIG. 6 is a schematic cross-sectional view of the twist lock assembly;
fig. 7 is a schematic structural view of the lower and upper steering jackets.
In the figure, the reference numerals are 1, a hanging bracket, 2, a hanging point, 3, a telescopic bracket component, 4, a transmission component, 5, a rotary lock component, 6, a clamping component and 7, a positioning rod;
21. 22, ring grooves;
31. The fixed shaft, 32, the movable shaft, 33, the first connecting plate, 34, the second connecting plate, 35, the first shaft lever, 36, the second shaft lever, 37, the third connecting plate, 38 and the fourth connecting plate;
41. a drive plate, 42, a slot;
51. sleeve, 52, connecting frame, 53, lower steering sleeve, 54, lower steering groove, 55, upper steering sleeve, 56, upper steering groove, 57, steering column, 58, driving column, 59, connecting column, 510, clamping block, 511, touch plate, 512, connecting rod, 513, clamping groove;
61. a clamping plate, 62, a clamping groove;
71. A guide head.
Detailed Description
The invention is described in further detail below with reference to the drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the invention and are not limiting of the invention. It should be noted that, for convenience of description, only the portions related to the invention are shown in the drawings.
It should be noted that, without conflict, the embodiments of the present invention and features of the embodiments may be combined with each other. The invention will be described in detail below with reference to the drawings in connection with embodiments.
Referring to fig. 1 to 7, an embodiment of the present invention provides a workpiece quenching sling for a crane, including:
The lifting frame 1 is connected with the driving end of the crane;
The lifting point 2 is fixedly arranged at the top of the workpiece and is used for lifting the workpiece through the lifting point 2;
the telescopic frame assembly 3 is connected to the bottom end of the hanging frame 1 in a telescopic manner along the vertical direction, the telescopic frame assembly 3 is in an extension state under the action of gravity of the telescopic frame assembly 3, an opening is formed in the bottom end of the telescopic frame assembly 3, and the opening is opened along with the contraction of the telescopic frame assembly 3 and is closed along with the extension of the telescopic frame assembly 3;
the transmission assembly 4 is arranged in the telescopic frame assembly 3 and is positioned above the opening, and the transmission assembly 4 falls down to squeeze the hanging point 2 to drive the opening to open;
The rotating lock assembly 5 is arranged on the telescopic frame assembly 5 and is used for locking the telescopic frame assembly 5 after the telescopic frame assembly 5 is contracted, and the rotating lock assembly 5 rises to complete the switching of locking and unlocking once after the transmission assembly 4 extrudes the lifting point 2 each time;
The clamping and holding assemblies 6 are fixedly arranged on two sides of the opening and used for tightly holding the hanging point 2 along with the closing of the opening.
In the present embodiment, the hanging point 2 is provided on the workpiece to be quenched so as to hoist the workpiece by the hanging point 2. Before the workpieces are lifted, the telescopic frame assembly 3 is in a contracted state and is locked by the rotary lock assembly 5, and the opening is opened at the moment. When the workpiece is lifted, the lifting appliance is lifted by the crane and moved to the position above the lifting point 2, and then the lifting appliance is controlled to fall. As the spreader drops, the lifting point 2 passes through the opening, the transmission assembly 4 drops on top of the lifting point, and as the transmission assembly 4 presses the lifting point 2, the twist lock assembly 5 unlocks. Then the jack lifts the hoist, and expansion bracket assembly 3 elongates under self gravity effect, and the opening is closed, and clamping assembly 6 holds tightly hoisting point 2 to hoist the work piece, and put into the heating furnace, accomplish the handling of work piece.
After the workpiece falls into the heating furnace, the lifting appliance is continuously lowered, the transmission assembly 4 falls on the top of the lifting point again along with the falling of the lifting appliance, the telescopic frame assembly 3 is contracted along with the extrusion of the lifting point 2 by the transmission assembly 4, the telescopic frame assembly 3 is contracted to a certain degree, the rotary lock assembly 5 is locked again, the opening is in an open state at the moment, the lifting appliance is lifted, and the lifting appliance is separated from the lifting point 2.
The lifting appliance disclosed by the application realizes automatic cohesion and separation of the lifting point 2 through cooperation among the components, realizes quick lifting of workpieces, effectively improves the production efficiency, and meanwhile, the whole lifting process does not need manual assistance, so that the operation of workers in a high-temperature environment is avoided, and unnecessary potential safety hazards are eliminated.
In a preferred embodiment, as shown in fig. 1 to 4, the telescopic bracket assembly 3 includes a fixed shaft 31 horizontally fixed at the bottom end of the hanger 1, a movable shaft 32 is arranged in parallel under the fixed shaft 31, two ends of the movable shaft 32 are symmetrically provided with first connecting plates 33, the middle part of the first connecting plates 33 is rotationally sleeved with the movable shaft 32, the outer sides of the first connecting plates 33 on the movable shaft 32 are rotationally sleeved with second connecting plates 34, the first connecting plates 33 and the second connecting plates 34 at the same end of the movable shaft 32 are arranged in an X shape, a first shaft rod 35 is arranged between the top ends of the two first connecting plates 33, a second shaft rod 36 is arranged between the top ends of the two second connecting plates 34, two ends between the first shaft rod 35 and the fixed shaft 31 are symmetrically provided with third connecting plates 37, two ends between the second shaft rod 36 and the fixed shaft 31 are symmetrically provided with fourth connecting plates 38, the fourth connecting plates 38 are rotationally sleeved with the fixed shaft 31 and the second shaft rod 36, and the bottom ends of the two first connecting plates 33 and the two second connecting plates 34 form an opening.
In the present embodiment, the fixed shaft 31 is fixedly connected to the hanger 1, and the movable shaft 32 is movable up and down with respect to the fixed shaft 31. When the transmission assembly 4 drives the space between the fixed shaft 31 and the movable shaft 32 to be reduced, the whole telescopic frame assembly 3 is shortened, the angle of divergence between the first connecting plate 33 and the second connecting plate 34 is increased, and the opening is opened. At this time, the telescopic frame assembly 3 is locked through the rotary lock assembly 5, so that the lifting point 2 can conveniently extend into an opening at the bottom end of the telescopic frame assembly 3.
Along with the whereabouts of expansion bracket subassembly 3, drive assembly 4 supports at the top of hoisting point 2, along with drive assembly 4 extrusion hoisting point 2, and the unblock is accomplished to the twist lock subassembly 5, no longer influences the flexible of expansion bracket subassembly 3. At this time, the crane lifts the expansion bracket assembly 3, under the action of gravity, the distance between the fixed shaft 31 and the movable shaft 32 is increased, the expansion bracket assembly 3 is integrally elongated, the divergence angle between the first connecting plate 33 and the second connecting plate 34 is reduced, and the opening is closed. Thereby, the clamping assembly 6 is used for clamping the hanging point 2, and the automatic locking of the hanging point 2 is realized. And the heavier the workpiece is, the better the locking effect is.
After the lifting of the workpiece is completed, the telescopic frame assembly 3 is lifted through the falling again, the telescopic frame assembly 3 after shrinkage is locked again by the rotary lock assembly 5, the opening is opened, the detachment from the lifting point 2 is completed, and the initial state is restored so as to facilitate the next lifting operation.
In a preferred embodiment, as shown in fig. 1-7, the steering lock assembly 5 includes a sleeve 51 disposed between the fixed shaft 31 and the movable shaft 32, the sleeve 51 is fixedly connected with the fixed shaft 31 through a connecting frame 52, a lower steering sleeve 53 is fixedly sleeved in the sleeve 51, four lower steering grooves 54 are uniformly distributed at the top end of the lower steering sleeve 53 along the circumferential direction, an upper steering sleeve 55 is fixedly sleeved above the lower steering sleeve 53 in the sleeve 51, four upper steering grooves 56 are uniformly distributed at the bottom end of the upper steering sleeve 55 along the circumferential direction, the upper steering grooves 56 and the lower steering grooves are arranged in a staggered manner, a transmission column 58 extending into the lower steering sleeve 53 and the upper steering sleeve 55 is symmetrically disposed at two sides of the transmission column 57, the transmission column 58 is sequentially extruded by the upper steering groove 56 and the lower steering groove 54 and then drives the steering column 57 to rotate by 90 degrees, a long clamping block 510 is fixedly connected at the bottom end of the steering column 57 through the connecting column 59, a touch plate 511 is disposed below the clamping block 510, the bottom of the touch plate 511 is provided with a clamping block 513, and the width of the clamping block 513 is smaller than the width of the clamping block 510 of the clamping block 513 disposed at the top surface of the connecting rod 32.
In this embodiment, the rotation lock assembly 5 is in a locked state in the initial state of the lifting appliance, the clamping block 510 is clamped in the clamping groove 513, the fixed shaft 31 is fixedly connected with the movable shaft 32, and the telescopic bracket assembly 3 in a contracted state is locked. As the spreader drops, the transmission assembly 4 abuts against the top of the hanging point 2, and cannot continue to drop, i.e. the movable shaft 32 cannot continue to move down. The fixed shaft 31 will continue to drop down to make the clamping block 510 prop against the touch plate 511, the transmission columns 58 at both sides of the steering column 57 are separated from the lower steering groove 54 and embedded into the upper steering groove 56, and the steering column 57 is driven to rotate under the extrusion of the upper steering groove 56 until the transmission columns 58 prop against the bottom of the upper steering groove 56. Then lifting the lifting appliance, moving the upper steering sleeve 55 upwards, dropping the transmission column 58 into the lower steering groove 54 again, driving the steering column 57 to rotate again under the extrusion of the lower steering groove 54 until the transmission column 58 is embedded into the bottom of the lower steering groove 54, and rotating the steering column 57 by 90 degrees. At this time, the latch 510 rotates 90 degrees along with it, and can be withdrawn from the latch 513 to complete the unlocking.
After the transmission assembly 4 presses the hanging point and lifts up next time, the clamping block 510 is embedded into the clamping groove 513 and rotates for 90 degrees again, and locking is completed. The structure design is reasonable, the automatic locking and unlocking of the telescopic frame assembly 3 are realized through a pure mechanical structure, and the telescopic frame assembly is safe and reliable.
In a preferred embodiment, as shown in fig. 1 and 2, the transmission assembly 4 includes two transmission plates 41, wherein bottom ends of the transmission plates 41 are fixedly sleeved with the movable shaft 32, and top ends of the transmission plates 41 are fixedly sleeved with the fixed shaft 31 through vertical long holes 42.
In this embodiment, as the lifting tool falls, the lifting point 2 enters the opening, and then the bottom ends of the two driving plates 41 abut against the top of the lifting point 2, so that the moving shaft 32 cannot continue to fall, but the fixed shaft 31 can continue to fall along the long hole 42, so as to drive the expansion bracket assembly 3 to shrink. Each falling and lifting of the drive plate 41 triggers a switch between unlocking and locking of the rotary lock assembly 5.
In a preferred embodiment, as shown in fig. 1 and 2, a positioning hole is formed at the top of the hanging point 2, a positioning rod 7 is fixedly arranged at the bottom of the moving shaft 32 corresponding to the positioning hole, and the outer diameter of the bottom end of the positioning rod 7 gradually decreases from top to bottom to form a guide head 71.
In the present embodiment, when the hanging point 2 is caught, the positioning rod 7 is inserted into the positioning hole under the guiding action of the guide head 71 as the telescopic bracket assembly 3 falls down, thereby achieving the positioning and guiding effects. The accurate alignment of the clamping assembly 6 and the lifting point 2 is ensured, and the transmission assembly 4 can be accurately dropped on the top of the lifting point 2, so that the smooth switching between the locking and unlocking of the rotary lock assembly 5 is realized.
In a preferred embodiment, as shown in fig. 1, the hanging point 2 is a stand 21 fixedly welded to the top of the workpiece, and a ring of ring grooves 22 are formed in the stand 21. The clamping and holding assembly 6 is convenient to clamp the upright post 21, so that the workpiece is lifted.
In a preferred embodiment, as shown in fig. 1, the clamping assembly 6 includes clamping plates 61 symmetrically disposed at two sides of the opening, and semicircular clamping grooves 62 matched with the ring grooves 22 are disposed at the inner sides of the clamping plates 61. When the opening is closed, the two clamping plates 61 are also closed, and the clamping grooves 62 are clamped at the ring grooves 22, so that the upright posts 21 are firmly held tightly.
In a preferred embodiment, the hanger 1, the hanging point 2, the telescopic frame assembly 3, the transmission assembly 4, the rotation lock assembly 5 and the clamping assembly 6 are all made of high-temperature resistant alloy materials. In the quenching operation, the service performance of the lifting appliance is ensured, the performance of the lifting appliance is not reduced or disabled due to high temperature, and safety accidents and unnecessary economic losses are avoided.
In the description of the present specification, the terms "connected," "mounted," "fixed," and the like are to be construed broadly, and "connected" may be, for example, a fixed connection, a detachable connection, or an integral connection, and may be directly connected or indirectly connected through an intermediary. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art according to the specific circumstances.
In the description of the present specification, the terms "one embodiment," "some embodiments," and the like, mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present application. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
The above is only a preferred embodiment of the present application, and is not intended to limit the present application, but various modifications and variations can be made to the present application by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application should be included in the protection scope of the present application.
Claims (5)
1. A workpiece quenching sling for a crane, comprising:
the hanging bracket is connected with the driving end of the crane;
The lifting point is fixedly arranged at the top of the workpiece and used for lifting the workpiece through the lifting point;
The telescopic frame assembly is connected to the bottom end of the hanger in a telescopic manner along the vertical direction, the telescopic frame assembly is in an extension state under the action of gravity of the telescopic frame assembly, an opening is formed in the bottom end of the telescopic frame assembly, and the opening is opened along with the contraction of the telescopic frame assembly and is closed along with the extension of the telescopic frame assembly; the telescopic bracket assembly comprises a fixed shaft horizontally and fixedly arranged at the bottom end of the hanging bracket, a movable shaft is arranged in parallel under the fixed shaft, first connecting plates are symmetrically arranged at two ends of the movable shaft, the middle part of each first connecting plate is rotationally sleeved with the movable shaft, second connecting plates are rotationally sleeved on the outer sides of the first connecting plates on the movable shaft, the first connecting plates and the second connecting plates which are positioned at the same end of the movable shaft are arranged in an X shape, a first shaft rod is arranged between the top ends of the two first connecting plates, a second shaft rod is arranged between the top ends of the two second connecting plates, third connecting plates are symmetrically arranged at two ends between the first shaft rod and the fixed shaft, the third connecting plates are rotationally sleeved with the fixed shaft and the first shaft rod respectively, fourth connecting plates are symmetrically arranged at two ends between the second shaft rod and the fixed shaft, the fourth connecting plates are rotationally sleeved with the fixed shaft and the second shaft rod respectively, and the openings are formed between the bottom ends of the two first connecting plates and the bottom ends of the two second connecting plates;
The transmission assembly is arranged in the telescopic frame assembly and is positioned above the opening, and the transmission assembly falls down to squeeze the hanging point to drive the opening to open; the transmission assembly comprises two transmission plates, the bottom ends of the transmission plates are fixedly sleeved with the movable shaft, and the top ends of the transmission plates are sleeved with the fixed shaft through vertical long holes;
The rotary lock assembly is arranged on the telescopic frame assembly and is used for locking the telescopic frame assembly after the telescopic frame assembly contracts, the rotary lock assembly rises along with the extrusion lifting point of the transmission assembly each time to finish the switching of locking and unlocking, the rotary lock assembly comprises a sleeve arranged between the fixed shaft and the movable shaft, the sleeve is fixedly connected with the fixed shaft through a connecting frame, a lower steering sleeve is fixedly sleeved in the sleeve, four lower steering grooves are uniformly distributed at the top end of the lower steering sleeve along the circumferential direction, an upper steering sleeve is fixedly sleeved in the sleeve and is positioned above the lower steering sleeve, four upper steering grooves are uniformly distributed at the bottom end of the upper steering sleeve along the circumferential direction, the upper steering grooves and the lower steering grooves are arranged in a staggered manner, the bottoms of the sleeve are provided with steering columns extending into the lower steering sleeve and the upper steering sleeve, the two sides of the steering columns are symmetrically provided with transmission columns extending into the lower steering grooves, the transmission columns are sequentially extruded by the upper steering grooves and the lower steering grooves, the transmission columns are sequentially driven by the upper steering grooves and the lower steering grooves, the transmission columns are sequentially provided with the width of the T-shaped clamping blocks, the width of the T-shaped clamping blocks is larger than the width of the connecting plates is fixed by the length of the clamping blocks, and the width of the clamping blocks are fixed by the width of the clamping blocks;
and the clamping assembly is fixedly arranged on two sides of the opening and used for clamping the hanging point along with the closing of the opening.
2. The workpiece quenching sling for a crane according to claim 1, wherein a positioning hole is formed in the top of the lifting point, a positioning rod is fixedly arranged at the bottom of the movable shaft corresponding to the positioning hole, and the outer diameter of the bottom end of the positioning rod is gradually reduced from top to bottom to form a guide head.
3. The workpiece quenching sling for a crane according to claim 1, wherein the lifting point is a column fixedly welded to the top of the workpiece, and a ring of ring grooves are formed in the column.
4. The workpiece quenching sling for a crane according to claim 3, wherein the clamping assembly comprises clamping plates symmetrically arranged at two sides of the opening, and semicircular clamping grooves matched with the annular grooves are formed in the inner sides of the clamping plates.
5. The workpiece quenching sling for a crane as defined in claim 1, wherein the hanger, the hanging point, the telescopic frame assembly, the transmission assembly, the rotation lock assembly and the clamping assembly are all made of high-temperature resistant alloy materials.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210973506.5A CN115108448B (en) | 2022-08-15 | 2022-08-15 | A workpiece quenching lifting tool for cranes |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210973506.5A CN115108448B (en) | 2022-08-15 | 2022-08-15 | A workpiece quenching lifting tool for cranes |
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| CN115108448A CN115108448A (en) | 2022-09-27 |
| CN115108448B true CN115108448B (en) | 2025-12-02 |
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| CN202210973506.5A Active CN115108448B (en) | 2022-08-15 | 2022-08-15 | A workpiece quenching lifting tool for cranes |
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| CN217867638U (en) * | 2022-08-15 | 2022-11-22 | 奥力通起重机(江苏)有限公司 | Workpiece quenching lifting appliance for crane |
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| CN100513291C (en) * | 2007-03-15 | 2009-07-15 | 马鞍山钢铁股份有限公司 | Hot blank excircle sling and its hoisting method |
| CN101704469A (en) * | 2009-11-10 | 2010-05-12 | 高佳太阳能股份有限公司 | Automatically tensioning type silicon rod lifting device |
| CN210255135U (en) * | 2019-07-12 | 2020-04-07 | 苏州亚昌精密机械有限公司 | Precision machining platform |
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|---|---|---|---|---|
| CN103803407A (en) * | 2012-11-06 | 2014-05-21 | 贵阳铝镁设计研究院有限公司 | Lifting appliance and method for lifting electrode placed in electrode tray |
| CN108249302A (en) * | 2016-12-28 | 2018-07-06 | 中国船舶重工集团公司第七○五研究所昆明分部 | A kind of underwater or navigation unit by water recycling Suspension hook structure |
| CN217867638U (en) * | 2022-08-15 | 2022-11-22 | 奥力通起重机(江苏)有限公司 | Workpiece quenching lifting appliance for crane |
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