CN217838108U - Hoisting clamp for crane - Google Patents
Hoisting clamp for crane Download PDFInfo
- Publication number
- CN217838108U CN217838108U CN202222366354.0U CN202222366354U CN217838108U CN 217838108 U CN217838108 U CN 217838108U CN 202222366354 U CN202222366354 U CN 202222366354U CN 217838108 U CN217838108 U CN 217838108U
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- pull rope
- pulley
- rack
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Abstract
The utility model discloses a hoisting clamp for a crane, which comprises a frame, a clamping component, a stay cord component, a bottom supporting component and a driving component; the frame is circular and is vertically arranged; the clamping assemblies are provided with a plurality of groups, are circumferentially distributed at the upper end of the frame and are used for clamping and fixing the workpiece; the pull rope assembly is arranged at the upper end of the clamping assembly and is used for providing driving force for the clamping assembly; the bottom supporting component is arranged at the lower end of the frame and is used for supporting the bottom of the workpiece; the driving assembly is arranged at the upper end of the bottom supporting assembly and used for driving the two groups of bottom supporting assemblies to be close to each other. The beneficial effects are that: after the height of the connecting block rises, the first pull rope is pulled upwards, and the first pull rope is steered through the first pulley and the second pulley, so that the connecting block drives the sliding rod to move towards the direction close to the center of the rack, and the clamping block clamps the workpiece; after the workpiece is separated from the ground, the first pull rope keeps a tensioned state under the action of the gravity of the workpiece, so that the clamping block always clamps the workpiece, and the workpiece is prevented from loosening.
Description
Technical Field
The utility model belongs to the hoist field especially relates to a lift by crane anchor clamps for hoist.
Background
The crane is a multi-action hoisting machine for vertically lifting and horizontally carrying heavy objects within a certain range, the hoisting equipment has the working characteristics of intermittent movement, namely corresponding mechanisms for taking materials, transporting, unloading and the like in one working cycle work alternately, more and more enterprises are added into the crane industry along with the continuous development of the crane industry, the development and the use of the crane in the market are more and more extensive, the crane links the lifted objects with the lifting mechanism through a fetching device, so that the operations such as loading, unloading, installing and the like of the objects are carried out, the fetching devices are various, a large amount of large buckets which are frequently needed to be used or cylindrical objects need to be carried in a workshop in factories, a special lifting clamp is needed, for example, a Chinese patent with the publication number of CN 2102955U for the lifting clamp of the crane, each clamping plate is sleeved at the upper end of the cylindrical object, each clamping bolt is screwed, the cylindrical object is lifted after the outer wall of the cylindrical object is clamped, the cylindrical object is lifted by the supporting block after the cylindrical object is lifted to a certain height, the cylindrical object is supported at the lower end of the cylindrical object by the supporting block, and each clamping bolt cannot be clamped manually in place when the cylindrical object is actually used, and each clamping bolt cannot be clamped in each time.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is just to provide a lift by crane anchor clamps for solving above-mentioned problem.
The utility model discloses a following technical scheme realizes above-mentioned purpose:
a lifting clamp for a crane comprises a rack, a clamping assembly, a pull rope assembly, a support bottom assembly and a driving assembly; the frame is circular and is vertically arranged; the clamping assemblies are provided with a plurality of groups, are circumferentially distributed at the upper end of the frame and are used for clamping and fixing the workpiece; the pull rope assembly is arranged at the upper end of the clamping assembly and is used for providing driving force for the clamping assembly; the bottom supporting component is arranged at the lower end of the frame and is used for supporting the bottom of the workpiece; the driving assembly is arranged at the upper end of the bottom supporting assembly and used for driving the two groups of bottom supporting assemblies to be close to each other.
In the structure, move this lifting clamp to the work piece upper end that needs hoist and mount, part two bottom plates, with this lifting clamp cover in the work piece outside, hoist this lifting clamp through the hoist and mount ring and lift, the connecting block height rises, make first stay cord upwards stimulate, turn to first stay cord through first pulley and second pulley, make the connecting block move to the direction that is close to the frame center, drive the slide bar and move to the direction that is close to the frame center, make press from both sides tight piece and support to press from both sides the clamp tightly to the work piece, when continuing to hoist this lifting clamp through the hoist and mount ring, because there is the static friction power between pressing from both sides tight piece and the work piece, make the hoist and mount ring continue to shift up, so that press from both sides the pressure increase between tight piece and the work piece, make the static friction power between tight piece and the work piece increase gradually, make the work piece break away from ground under the drive of hoist and mount ring.
After the workpiece is separated from the ground, the first pull rope keeps a tensioned state under the action of the gravity of the workpiece, so that the clamping block always clamps the workpiece, and the workpiece is prevented from loosening; adjusting the electric telescopic rod to enable the height of the connecting rod to be reduced, enabling the height of the bottom plate to be lower than that of the workpiece, starting the driving motor to drive the reel to rotate, enabling the second pull rope to be wound on the reel, enabling the second pull rope to wind the third pulley, enabling the fixing block to approach the third pulley, enabling the bottom plates to rotate around the rotating shaft, enabling the two bottom plates to approach each other to form a ring, adjusting the electric telescopic rod to enable the bottom plates to contact with the lower end of the workpiece, supporting the bottom of the workpiece, and avoiding the workpiece from loosening and falling off in the moving process; after the clamping block moves to a preset position, the electric telescopic rod is adjusted to enable the bottom plates to be separated from the workpiece, the driving motor is enabled to rotate reversely, the second pull rope is loosened, the two bottom plates are separated, the electric telescopic rod is adjusted to enable the height of the bottom plates to be larger than that of the lower end of the workpiece, the lifting clamp is put down, the connecting plate moves downwards relative to the rack, the first pull rope is loosened, the connecting block moves towards the direction far away from the center of the rack under the action of the reset spring, and the clamping block is enabled to loosen the workpiece.
Preferably, the clamping assembly comprises a sliding rod, a clamping block and a connecting block; the sliding rod is arranged on the rack in a sliding manner, one end of the sliding rod faces the center of the rack, and the other end of the sliding rod is far away from the center of the rack; the clamping block is fixedly arranged at one end of the sliding rod, which faces the center of the rack; the connecting block is fixedly installed at one end, far away from the center of the rack, of the sliding rod, and a return spring is arranged between the connecting block and the rack.
Preferably, the pull rope assembly comprises a first pulley, a second pulley and a first pull rope; the first pulley is rotatably arranged on the rack; the second pulley is rotatably arranged at the upper end of the rack and is positioned at the inner side of the rack; first stay cord is walked around first pulley and second pulley, and one end is fixed on the connecting block, and other end fixedly connected with connecting plate, connecting plate are located the frame upper end, and are located the frame center.
Preferably, the lower end of the rack is fixedly provided with an electric telescopic rod, the lower end of the electric telescopic rod is fixedly provided with a connecting rod, and the bottom supporting component comprises a rotating shaft and a bottom plate; the two rotating shafts are symmetrically distributed at the lower end of the connecting rod and are rotationally connected with the connecting rod; the bottom plate is total two, and the bottom plate is semicircle annular, and a ring is constituteed to two bottom plates, and the one end fixed mounting of bottom plate has the fixed block at the pivot lower extreme, and the one end fixed mounting that the pivot was kept away from to the bottom plate.
Preferably, the driving assembly comprises a driving motor, a third pulley and a second pull rope; the driving motor is fixedly arranged at the lower end of the connecting rod, and a winding wheel is fixedly arranged on an output shaft of the driving motor; the third pulley is rotatably arranged at one end of the bottom plate close to the rotating shaft; the second pull rope winds around the third pulley, one end of the second pull rope is fixed on the fixing block of the other bottom plate, and the other end of the second pull rope is wound on the winding wheel.
Preferably, the upper end of the connecting plate is fixedly provided with a hoisting ring.
The beneficial effects are that: after the height of the connecting block rises, the first pull rope is pulled upwards, and the first pull rope is steered through the first pulley and the second pulley, so that the connecting block drives the sliding rod to move towards the direction close to the center of the rack, and the clamping block clamps the workpiece; after the workpiece is separated from the ground, the first pull rope keeps a tensioned state under the action of the gravity of the workpiece, so that the clamping block always clamps the workpiece, and the workpiece is prevented from loosening.
Drawings
Fig. 1 is a schematic structural view of a lifting clamp for a crane according to the present invention;
fig. 2 is an enlarged schematic view of a lifting clamp for a crane of the present invention at a in fig. 1;
fig. 3 is a schematic structural view of a lifting clamp for a crane according to the present invention;
fig. 4 is an enlarged schematic view of a clamping assembly of a lifting clamp for a crane according to the present invention.
The reference numerals are explained below:
101. a frame; 102. a connecting plate; 103. hoisting a ring; 201. a slide bar; 202. a clamping block; 203. connecting blocks; 301. a first pulley; 302. a second pulley; 303. a first pull cord; 401. a rotating shaft; 402. a base plate; 501. a drive motor; 502. a third pulley; 503. a second draw cord.
Detailed Description
The present invention will be further explained with reference to the accompanying drawings:
as shown in fig. 1-4, a lifting clamp for a crane comprises a frame 101, a clamping assembly, a pull rope assembly, a bottom supporting assembly and a driving assembly; the frame 101 is circular and is vertically arranged; the clamping assemblies are provided with a plurality of groups, are circumferentially distributed at the upper end of the rack 101 and are used for clamping and fixing workpieces; the pull rope assembly is arranged at the upper end of the clamping assembly and is used for providing driving force for the clamping assembly; the bottom supporting component is arranged at the lower end of the frame 101 and is used for supporting the bottom of a workpiece; the drive assembly is arranged at the upper end of the support bottom assembly and used for driving the two sets of support bottom assemblies to be close to each other, the pull rope assembly drives the clamping assembly to clamp the workpiece, and the support effect of the support bottom assemblies is matched to avoid the workpiece from loosening and dropping in the moving process.
Preferably, as shown in fig. 4, the clamping assembly comprises a sliding rod 201, a clamping block 202, a connecting block 203; the sliding rod 201 is slidably mounted on the rack 101, one end of the sliding rod faces the center of the rack 101, and the other end of the sliding rod is far away from the center of the rack 101; the clamping block 202 is fixedly arranged at one end of the sliding rod 201 facing the center of the frame 101 through a bolt; the connecting block 203 is fixedly arranged at one end of the sliding rod 201 far away from the center of the rack 101, a return spring is arranged between the connecting block 203 and the rack 101, and the return spring enables the connecting block 203 to drive the sliding rod 201 to move towards the direction far away from the center of the rack 101, so that the clamping block 202 loosens the workpiece.
Preferably, as shown in fig. 1 and 4, the pull rope assembly includes a first pulley 301, a second pulley 302, a first pull rope 303; the first pulley 301 is rotatably mounted on the frame 101 through a bearing; the second pulley 302 is rotatably mounted at the upper end of the frame 101 through a bearing and is positioned at the inner side of the frame 101; the first pulling rope 303 goes around the first pulley 301 and the second pulley 302, one end of the first pulling rope 303 is fixed on the connecting block 203, the other end of the first pulling rope 303 is fixedly connected with the connecting plate 102, the connecting plate 102 is positioned at the upper end of the rack 101 and is positioned at the center of the rack 101, the first pulling rope 303 goes around the first pulley 301 and the second pulley 302, and the connecting block 203 is pulled to move towards the direction close to the center of the rack 101 when the connecting plate 102 rises.
Preferably, as shown in fig. 1 and 2, an electric telescopic rod is fixedly installed at the lower end of the frame 101, a connecting rod is fixedly installed at the lower end of the electric telescopic rod, and the bottom supporting assembly comprises a rotating shaft 401 and a bottom plate 402; the number of the rotating shafts 401 is two, the rotating shafts are symmetrically distributed at the lower end of the connecting rod and are rotatably connected with the connecting rod through bearings; bottom plate 402 is total two, and bottom plate 402 is half-circular, and a ring is constituteed to two bottom plates 402, and bottom plate 402's one end fixed mounting is at pivot 401 lower extreme, and bottom plate 402 keeps away from pivot 401's one end fixed mounting has the fixed block, and bottom plate 402 rotates round pivot 401, after two bottom plates 402 constitute a ring, supports the work piece lower extreme.
Preferably, as shown in fig. 2, the driving assembly includes a driving motor 501, a third pulley 502, a second pull rope 503; the driving motor 501 is fixedly arranged at the lower end of the connecting rod, and a reel is fixedly arranged on an output shaft of the driving motor 501; the third pulley 502 is rotatably mounted on one end of the bottom plate 402 close to the rotating shaft 401 through a bearing; the second pulling rope 503 is wound around the third pulley 502, one end of the second pulling rope is fixed on the fixing block of the other bottom plate 402, the other end of the second pulling rope is wound on the reel, the driving motor 501 drives the reel to rotate, the second pulling rope 503 is wound around the third pulley 502 to pull the fixing block, and the two bottom plates 402 are close to each other.
Preferably, as shown in fig. 1, a hoisting ring 103 is fixedly mounted at the upper end of the connecting plate 102 for facilitating hoisting of the hoisting fixture.
In the structure, the hoisting clamp is moved to the upper end of a workpiece to be hoisted, the two bottom plates 402 are separated, the hoisting clamp is sleeved outside the workpiece, the hoisting clamp is hoisted through the hoisting ring 103, the connecting block 203 is lifted to a high degree, the first pull rope 303 is pulled upwards, under the action of the self gravity of the frame 101, the first pull rope 303 is turned through the first pulley 301 and the second pulley 302, the connecting block 203 is moved towards the direction close to the center of the frame 101, the sliding rod 201 is driven to move towards the direction close to the center of the frame 101, the clamping block 202 is pressed and clamped towards the workpiece, when the hoisting clamp is hoisted upwards through the hoisting ring 103 continuously, due to the static friction force existing between the clamping block 202 and the workpiece, the hoisting ring 103 is moved upwards continuously, so that the pressure between the clamping block 202 and the workpiece is increased, the static friction force between the clamping block 202 and the workpiece is increased, the clamping force of the clamping block 202 on the workpiece is gradually increased, and the workpiece is separated from the ground under the drive of the hoisting ring 103.
After the workpiece is separated from the ground, the first pull rope 303 keeps a tensioned state under the action of the gravity of the workpiece, so that the clamping block 202 always clamps the workpiece, and the workpiece is prevented from loosening; adjusting the electric telescopic rod to enable the height of the connecting rod to be lowered, enabling the height of the bottom plate 402 to be lower than the height of a workpiece, starting the driving motor 501 to drive the reel to rotate, enabling the second pull rope 503 to be wound on the reel, enabling the second pull rope 503 to wind the third pulley 502, enabling the fixing block to approach the third pulley 502, enabling the bottom plates 402 to rotate around the rotating shaft 401, enabling the two bottom plates 402 to approach each other to form a ring, adjusting the electric telescopic rod to enable the bottom plates 402 to be in contact with the lower end of the workpiece, supporting the bottom of the workpiece, and avoiding the workpiece from loosening and falling in the moving process; after the workpiece is moved to a preset position, the electric telescopic rod is adjusted to enable the bottom plate 402 to be separated from the workpiece, the driving motor 501 is enabled to rotate reversely, the second pull rope 503 is loosened to separate the two bottom plates 402, the electric telescopic rod is adjusted to enable the height of the bottom plate 402 to be larger than that of the lower end of the workpiece, the hoisting clamp is put down, the connecting plate 102 moves downwards relative to the rack 101, the first pull rope 303 is loosened, the connecting block 203 moves towards the direction away from the center of the rack 101 under the action of the reset spring, and the clamping block 202 is enabled to loosen the workpiece.
The foregoing illustrates and describes the principles, general features, and advantages of the present invention. It will be understood by those skilled in the art that the present invention is not limited to the above embodiments, and that the foregoing embodiments and descriptions are provided only to illustrate the principles of the present invention without departing from the spirit and scope of the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (6)
1. A lifting clamp for a crane, characterized by: comprises a frame (101), a clamping component, a pull rope component, a support bottom component and a driving component;
the rack (101) is circular and is vertically arranged;
the clamping assemblies are provided with a plurality of groups, are circumferentially distributed at the upper end of the rack (101), and are used for clamping and fixing workpieces;
the pull rope assembly is arranged at the upper end of the clamping assembly and used for providing driving force for the clamping assembly;
the bottom supporting component is arranged at the lower end of the rack (101) and is used for supporting the bottom of a workpiece;
the driving assembly is arranged at the upper end of the bottom supporting assembly and used for driving the two groups of bottom supporting assemblies to be close to each other.
2. A lifting clamp for a crane according to claim 1, wherein: the clamping assembly comprises a sliding rod (201), a clamping block (202) and a connecting block (203);
the sliding rod (201) is installed on the rack (101) in a sliding mode, one end of the sliding rod faces the center of the rack (101), and the other end of the sliding rod is far away from the center of the rack (101);
the clamping block (202) is fixedly arranged at one end of the sliding rod (201) facing to the center of the machine frame (101);
the connecting block (203) is fixedly installed at one end, far away from the center of the rack (101), of the sliding rod (201), and a return spring is arranged between the connecting block (203) and the rack (101).
3. A lifting clamp for a crane according to claim 2, wherein: the pull rope assembly comprises a first pulley (301), a second pulley (302) and a first pull rope (303);
the first pulley (301) is rotatably mounted on the frame (101);
the second pulley (302) is rotatably arranged at the upper end of the frame (101) and is positioned at the inner side of the frame (101);
the first pull rope (303) bypasses the first pulley (301) and the second pulley (302), one end of the first pull rope is fixed on the connecting block (203), the other end of the first pull rope is fixedly connected with a connecting plate (102), and the connecting plate (102) is located at the upper end of the rack (101) and is located at the center of the rack (101).
4. A lifting clamp for a crane according to claim 1, wherein: the lower end of the rack (101) is fixedly provided with an electric telescopic rod, the lower end of the electric telescopic rod is fixedly provided with a connecting rod, and the bottom supporting component comprises a rotating shaft (401) and a bottom plate (402);
the number of the rotating shafts (401) is two, the rotating shafts are symmetrically distributed at the lower end of the connecting rod and are rotatably connected with the connecting rod;
the number of the bottom plates (402) is two, the bottom plates (402) are semicircular, the two bottom plates (402) form a circular ring, one end of each bottom plate (402) is fixedly installed at the lower end of the rotating shaft (401), and a fixing block is fixedly installed at one end, far away from the rotating shaft (401), of each bottom plate (402).
5. A lifting clamp for a crane according to claim 4, wherein: the driving assembly comprises a driving motor (501), a third pulley (502) and a second pull rope (503);
the driving motor (501) is fixedly arranged at the lower end of the connecting rod, and a reel is fixedly arranged on an output shaft of the driving motor (501);
the third pulley (502) is rotatably arranged at one end of the bottom plate (402) close to the rotating shaft (401);
the second pull rope (503) passes around the third pulley (502), one end of the second pull rope is fixed on the fixing block of the other base plate (402), and the other end of the second pull rope is wound on the reel.
6. A lifting clamp for a crane according to claim 3, wherein: and a hoisting ring (103) is fixedly mounted at the upper end of the connecting plate (102).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222366354.0U CN217838108U (en) | 2022-09-06 | 2022-09-06 | Hoisting clamp for crane |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222366354.0U CN217838108U (en) | 2022-09-06 | 2022-09-06 | Hoisting clamp for crane |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217838108U true CN217838108U (en) | 2022-11-18 |
Family
ID=84015822
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222366354.0U Active CN217838108U (en) | 2022-09-06 | 2022-09-06 | Hoisting clamp for crane |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217838108U (en) |
-
2022
- 2022-09-06 CN CN202222366354.0U patent/CN217838108U/en active Active
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