CN111762679B

CN111762679B - Automatic hoisting clamp

Info

Publication number: CN111762679B
Application number: CN202010517263.5A
Authority: CN
Inventors: 付安英
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-06-09
Filing date: 2020-06-09
Publication date: 2022-04-08
Anticipated expiration: 2040-06-09
Also published as: CN111762679A

Abstract

The invention relates to an automatic hoisting clamp which comprises a hoisting part for hoisting and a clamping part hung below the hoisting part and used for clamping a barrel body, wherein the clamping part drives one end of a scissor piece to open and close through a built-in hydraulic cylinder, so that the position change of an L-shaped plate and a straight rod at the other end of the scissor piece is controlled, and the position change of the straight rod drives a fixedly connected telescopic ring to stretch and retract so as to fix the barrel body. According to the invention, the hydraulic cylinder is used for controlling the three annularly distributed shearing fork members to synchronously expand and contract, the first plate of the shearing fork member drives the L-shaped plate to move, the L-shaped plate and the second plate of the shearing fork member jointly limit the movement direction of the straight rod, so that the straight rod is retracted and upwards operated during clamping, the fixedly connected telescopic ring is driven to be folded and clamped, the telescopic ring is moved upwards at the same time, and the inclined supporting plate on the telescopic ring is driven to move upwards to attach, support and clamp the diameter change transition part of the outer wall of the barrel body.

Description

Automatic hoisting clamp

Technical Field

The invention relates to the field of clamps, in particular to an automatic hoisting clamp.

Background

The hoisting of large-scale tube-shape or barreled object generally adopts and lifts by crane through the lifting hook after the below is fixed for the process of whole tube-shape object centre gripping is comparatively time-consuming.

The current traditional clamping piece that adopts generally sets up to curved anchor clamps, from the both sides centre gripping of symmetry, forms to hold this kind of mode of centre gripping tightly to the staving, this kind because area of contact is little, glides easily when whole bucket is overweight, also adopts this kind of mode to the staving of the diameter of the face above being greater than below, leads to holistic centre gripping effect not good, causes the centre gripping unstability easily.

Disclosure of Invention

The invention provides an automatic hoisting clamp, aiming at meeting the requirement of adaptive clamping of the reducing barrel body with the upper diameter larger than the lower diameter.

The technical problem to be solved by the invention is realized by adopting the following technical scheme:

the utility model provides an automatic change stone tongs, is including the portion of lifting by crane that is used for the hoist and hang the clamping part that is used for carrying out the centre gripping to the staving of portion below of lifting by crane, the clamping part drives the one end of scissors spare through built-in pneumatic cylinder and opens and shuts, controls the L shaped plate and the straight-bar position change of scissors spare other end, the position change of straight-bar drives the flexible realization of fixed connection's expansion ring right the staving is fixed.

The clamping part comprises a suspension frame, an inverted hydraulic cylinder is arranged in the suspension frame, and the output end of the hydraulic cylinder faces downwards.

The scissor element, the L-shaped plate and the straight rod form a single clamping jaw, and the clamping jaw is provided with three equal distances which are arranged below the hydraulic cylinder in a surrounding mode.

The scissors piece comprises a first plate and a second plate which are arranged in a mutually rotating mode, the upper end of the first plate is hinged to the bottom plate of the suspension frame, the lower end of the first plate is hinged to the L-shaped plate, the lower end of the second plate is hinged to the end plate of the output end of the hydraulic cylinder, the upper end of the second plate moves in a second sliding groove formed in the side face of the L-shaped plate through idler wheels, and the lower end of the first plate is located below the second sliding groove.

The straight rod slides in a limiting hole formed in the L-shaped plate, and the upper end of the straight rod is connected with a first sliding groove formed in the side wall of the first plate in a sliding mode.

The telescopic ring comprises three fixed blocks and a flexible steel ring, two ends of the flexible steel ring slide in the sliding cavity inside the fixed blocks, the fixed blocks and the flexible steel ring are arranged annularly at intervals, and the fixed blocks are fixedly connected with the lower ends of the straight rods.

The fixed block with the upper surface of flexible steel ring all can be dismantled through linking up the post and be connected with oblique fagging, the curved surface of oblique fagging with the laminating of staving curved surface.

The lifting part comprises a lifting frame, the lifting frame drives a moving seat to move along the upper surface of the lifting frame through a built-in screw rod, a motor is fixedly connected below the moving seat, and a rope of the motor drives the clamping part to lift and move.

The invention has the beneficial effects that:

according to the invention, the hydraulic cylinder is used for controlling the three annularly distributed shearing fork members to synchronously expand and contract, the first plate of the shearing fork member drives the L-shaped plate to move, the L-shaped plate and the second plate of the shearing fork member jointly limit the moving direction of the straight rod, so that the straight rod is inwardly contracted and upwards operated during clamping, the fixedly connected telescopic ring is driven to be folded and clamped, meanwhile, the telescopic ring is upwards moved, the inclined supporting plate on the telescopic ring is driven to upwards move to carry out laminating bearing and clamping on the diameter change transition part of the outer wall of the barrel body, namely, the contact area between the inclined supporting plate and the barrel body is increased, the weight of the whole barrel body is dispersed, and the barrel body is more stably suspended.

Drawings

The invention is further illustrated with reference to the following figures and examples.

FIG. 1 is an overall perspective view of the present invention;

FIG. 2 is an overall perspective view of the present invention;

FIG. 3 is a schematic view of the lifting portion of the present invention;

FIG. 4 is a schematic view of the clamping portion of the present invention;

FIG. 5 is a schematic view of a single jaw of the present invention;

fig. 6 is a schematic cross-sectional view of the slip ring of the present invention.

In the figure: 1. a lifting part; 11. a hanger; 12. a screw; 13. a movable seat; 14. a housing frame; 15. a motor; 16. a rope; 2. suspending the frame; 21. a base plate; 3. a hydraulic cylinder; 31. an end plate; 4. a scissor element; 41. a first plate; 42. a second plate; 43. a first chute; 44. a roller; 5. an L-shaped plate; 51. a second chute; 52. defining an aperture; 6. a straight rod; 7. a telescopic ring; 71. a fixed block; 72. a flexible steel ring; 73. a sliding cavity; 74. connecting the column; 8. a diagonal bracing plate; 9. and (5) a barrel body.

Detailed Description

In order to make those skilled in the art better understand the technical solution of the present invention, the present invention will be described more clearly and more completely with reference to the drawings in the following embodiments, and it is understood that the described embodiments are only a part of the present invention, rather than all of the present invention, and based on the embodiments, other embodiments obtained by those skilled in the art without inventive exercise are within the protection scope of the present invention.

As shown in fig. 1-6, an automatic hoisting fixture comprises a hoisting part 1 for hoisting and a clamping part hung below the hoisting part 1 for clamping a barrel 9, wherein the clamping part drives one end of a scissor element 4 to open and close through a built-in hydraulic cylinder 3, so as to control the position change of an L-shaped plate 5 and a straight rod 6 at the other end of the scissor element 4, and the position change of the straight rod 6 drives a fixedly connected telescopic ring 7 to stretch and contract to fix the barrel 9.

The clamping part comprises a suspension frame 2, an inverted hydraulic cylinder 3 is arranged in the suspension frame 2, and the output end of the hydraulic cylinder 3 faces downwards.

The scissor element 4, the L-shaped plate 5 and the straight bar 6 constitute a single jaw provided with three equidistant loops arranged below the hydraulic cylinder 3. Three equidistance encircles the clamping jaw that sets up and can follow the direction of difference and carry out the support of gravity to staving 9, has disperseed gravity, and the slip ring 7 that also can synchronous control below simultaneously is used for carrying out the centre gripping to staving 9.

The scissor element 4 comprises a first plate 41 and a second plate 42 which are rotatably arranged, the upper end of the first plate 41 is hinged on the bottom plate 21 of the suspension frame 2, the lower end is hinged on the L-shaped plate 5, the lower end of the second plate 42 is hinged on the end plate 31 at the output end of the hydraulic cylinder 3, the upper end of the second plate 42 moves in a second sliding groove 51 arranged at the side of the L-shaped plate 5 through a roller 44, and the lower end of the first plate 41 is positioned below the second sliding groove 51. Because the hydraulic cylinder 3 is fixed on the suspension frame 2, the hydraulic cylinder 3 stretches and retracts to drive the lower end of the second plate 42 to rotate, and simultaneously, the longitudinal distance between the first plate 41 and the second plate 42 is also pulled, so that the other ends of the first plate 41 and the second plate 42 change along with the change, and because the other end of the first plate 41 is hinged on the L-shaped plate 5, the other end of the second plate 42 can only roll in the second sliding groove 51 of the L-shaped bar through the roller 44 to adjust the position, and simultaneously, the L-shaped plate 5 changes along with the change of the first plate 41.

The straight rod 6 slides in a limiting hole 52 formed in the L-shaped plate 5, and the upper end of the straight rod 6 is slidably connected to a first sliding groove 43 formed in the side wall of the first plate 41. The straight rod 6 is limited in the limiting hole 52 of the L-shaped plate 5 to move left and right along with the expansion or contraction of the L-shaped plate 5, and simultaneously, the upper end of the straight rod 6 slides on the second plate 42, so that the height of the straight rod 6 changes along with the change of the second plate 42, and further, the straight rod 6 extends along with the extension of the hydraulic cylinder 3 under the limitation of the limiting hole 52 of the L-shaped plate 5 and the first sliding groove 43 of the second plate 42, and the straight rod 6 moves upwards; on the contrary, the hydraulic cylinder 3 is shortened, and the straight rod 6 moves downwards to the outside

The telescopic ring 7 comprises three fixing blocks 71 and three flexible steel rings 72, two ends of each flexible steel ring 72 slide in sliding cavities 73 inside the left fixing block 71 and the right fixing block 71, the fixing blocks 71 and the flexible steel rings 72 are arranged annularly at intervals, and the fixing blocks 71 are fixedly connected with the lower ends of the three straight rods 6. The whole flexible steel ring 72 that can buckle similar to the flexible steel ring 72 of nature of iron sheet sets up and can carry out automatic the buckling or receive and release when fixed block 71 expands each other or shrink and move, cooperatees with fixed block 71 all the time, guarantees the normal operating of expansion ring 7, simultaneously because vertical unable buckling for provide stable support to top inclined strut board 8 all the time, both ends are fixed block 71 about flexible steel ring 72, and the left and right sides of fixed block 71 also is flexible steel ring 72.

The upper surfaces of the fixed block 71 and the flexible steel ring 72 are detachably connected with an inclined supporting plate 8 through a connecting column 74, and the curved surface of the inclined supporting plate 8 is attached to the curved surface of the barrel body 9. The whole slope that sets up of fagging 8 is used for supporting the less department of staving 9 diameters to the place of great department transition, fagging 8's curved surface also laminates mutually with the curved surface of this department to one side, fagging 8's setting up has increased the area of contact of whole anchor clamps and staving 9, the firm degree to the 9 centre gripping of staving has been increased, the holistic gravity of staving 9 has also been disperseed simultaneously, the joint form for draw-in groove and fixture block between fagging 8 and the linking post 74, the length of linking post 74 on fixed block 71 and flexible steel ring 72 is different, for all fagging 8 at same level.

The lifting part 1 comprises a lifting frame 11, the lifting frame 11 drives a moving seat 13 to move along the upper surface of the lifting frame 11 through a built-in screw 12, a lower fixedly connected with accommodating frame 14 of the moving seat 13 is provided with a motor 15 inside the accommodating frame 14, a rope 16 of the motor 15 drives a clamping part to lift and move, the screw 12 drives the moving seat 13 to move, the position of the lower clamping part is changed, the clamping part can be aligned to the barrel body 9, and the motor 15 controls the height of the clamping part for receiving the rope 16 and is used for transferring the barrel body 9.

When in use: starting the screw 12, the screw 12 rotates to drive the movable base 13 to move on the hanger 11, adjusting the position of the clamping part below the hanger 11, so that the clamping part is positioned right above the clamped object, then starting the motor 15, and rotating the motor 15 to enable the clamping part to be below the clamping part through the rope 16.

The hydraulic cylinder 3 in the clamping part is started under the clamping part, so that the hydraulic cylinder 3 contracts to pull the end plate 31 to move upwards, the longitudinal opening angle of the scissor element 4 is driven to be reduced, the L-shaped plate 5 is driven to move upwards to the outside, meanwhile, the straight rods 6 move downwards to the outside under the limitation of the L-shaped plate 5 and the second plate 42 of the scissor element 4, each straight rod 6 moves downwards to the outside, the telescopic rings 7 fixed with the straight rods 6 are pulled to expand and move downwards, the barrel body 9 is covered in the range all the time in the downward moving process, the barrel body 9 goes over the position with the larger diameter of the upper part of the barrel body 9 along with the continuous descending, and the barrel body 9 stops at the position with the smaller diameter of the middle part of the barrel body 9.

During clamping: start the 3 contractions of pneumatic cylinder, the 3 extension of pneumatic cylinder promotes end plate 31, and end plate 31 drives articulated 4 vertical opening angles of scissors spare and diminishes, drives L shaped plate 5 and moves down to inside, and the action of upwards moving is done to each straight-bar 6 to it can carry out the centre gripping to drive the shrink of expansion ring 7 to staving 9, and expansion ring 7 shifts up simultaneously, makes the inclined plane department on the inclined supporting plate 8 on the expansion ring 7 and the 9 surfaces of staving laminate, realizes fixing its support.

The foregoing shows and describes the general principles, essential features, and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are merely illustrative of the principles of the invention, but that various changes and modifications may be made without departing from the spirit and scope of the invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. The utility model provides an automatic change stone tongs which characterized in that: the barrel body lifting device comprises a lifting part (1) used for lifting and a clamping part hung below the lifting part (1) and used for clamping a barrel body (9), wherein the clamping part drives one end of a scissor piece (4) to be opened and closed through a built-in hydraulic cylinder (3), the position change of an L-shaped plate (5) and a straight rod (6) at the other end of the scissor piece (4) is controlled, and the position change of the straight rod (6) drives a fixedly connected telescopic ring (7) to stretch and retract so as to fix the barrel body (9); the clamping part comprises a suspension frame (2), an inverted hydraulic cylinder (3) is arranged in the suspension frame (2), and the output end of the hydraulic cylinder (3) faces downwards; the scissors spare (4) including mutual rotation setting first board (41) and second board (42), the upper end of first board (41) articulates on bottom plate (21) of suspension frame (2), and the lower extreme articulates on L shaped plate (5), the lower extreme of second board (42) articulates on end plate (31) of pneumatic cylinder (3) output, the upper end of second board (42) is in through gyro wheel (44) move in second spout (51) seted up to L shaped plate (5) side, the lower extreme of first board (41) is located the below of second spout (51), straight-bar (6) are in slide in limited hole (52) that L shaped plate (5) were seted up, just the upper end sliding connection of straight-bar (6) in first spout (43) that the lateral wall of first board (41) was seted up.

2. An automated lifting clamp according to claim 1, wherein: the shearing fork piece (4), the L-shaped plate (5) and the straight rod (6) form a single clamping jaw, and the clamping jaw is provided with three equal distances and is arranged below the hydraulic cylinder (3) in a surrounding mode.

3. An automated lifting clamp according to claim 1, wherein: the telescopic ring (7) comprises three fixing blocks (71) and a flexible steel ring (72), the two ends of the flexible steel ring (72) are divided into a left fixing block and a right fixing block, the fixing blocks (71) slide in sliding cavities (73) in the fixing blocks (71), the fixing blocks (71) and the flexible steel ring (72) are arranged annularly at intervals, and the fixing blocks (71) are fixedly connected with the three lower ends of the straight rods (6).

4. An automated lifting clamp according to claim 3, wherein: the fixed block (71) with the upper surface of flexible steel ring (72) all can be dismantled through linking up post (74) and be connected with oblique fagging (8), the curved surface of oblique fagging (8) with staving (9) curved surface laminating.

5. An automated lifting clamp according to claim 1, wherein: the lifting part (1) comprises a lifting frame (11), the lifting frame (11) drives a moving seat (13) to move along the upper surface of the lifting frame (11) through a built-in screw rod (12), a motor (15) is fixedly connected below the moving seat (13), and a rope (16) of the motor (15) drives the clamping part to lift and move.