CN215946509U - Electric hoisting point mechanism of PC prefabricated part hoisting machine - Google Patents

Abstract

An electric hoisting point mechanism of a PC prefabricated part hoisting machine is characterized in that a hoisting part is fixed on a PC prefabricated part, a hoisting ring is hooked on a hoisting hook of hoisting equipment through a hoisting hole, the hoisting equipment drives the hoisting ring to move to a position where a conical head is coaxial with an inner hole of the hoisting part, then the hoisting equipment drives the hoisting ring to move downwards so that the conical head and each movable clamping piece are inserted into the inner hole, a sliding sleeve driving device drives a sliding sleeve to move downwards, each movable clamping piece slides along a conical surface of the conical head and rotates outwards around the clamping ring, and the upper end of the inner hole is a conical hole with the inner diameter gradually reduced, so that after each movable clamping piece rotates outwards and is opened by taking the clamping ring as a circle center, the diameter of a circle formed by each movable clamping piece is increased, the outer side end of each movable clamping piece is contacted with the conical surface of the conical hole when the hoisting ring is hoisted, the PC prefabricated part is hoisted, and the hoisting tool does not need to be manually disassembled in the whole process, the safety of the hoisting operation is improved.

Description

Electric hoisting point mechanism of PC prefabricated part hoisting machine

Technical Field

The utility model relates to the technical field of building equipment, in particular to an electric hoisting point mechanism of a PC prefabricated part hoisting machine.

Background

PC components are concrete products produced by standardized, mechanized processes in factories, and traditional cast-in-place concrete corresponding to them requires site molding, site pouring and site curing. Because the PC prefabricated part has the advantages of high safety, acceleration of the progress of construction engineering, cost reduction and improvement of construction environment, the PC prefabricated part is more and more widely applied to the field of modern buildings. However, the hoisting of the PC prefabricated part is realized by connecting the hoisting machine with the prefabricated part by using a hoisting tool and adopting a manual operation method, namely, workers manually assemble and disassemble the hoisting ring and the hoisting tool. The mode causes that the hooking and unhooking of the component takes long time, and potential safety hazards exist in the ascending operation of workers.

Disclosure of Invention

In order to overcome the defects of the technology, the utility model provides the electric hoisting point mechanism of the PC prefabricated part hoisting machine, which is safe, reliable and high in hoisting efficiency.

The technical scheme adopted by the utility model for overcoming the technical problems is as follows:

the utility model provides a PC prefabricated component hoisting machine electric hoisting point mechanism, includes:

the upper end of the lifting ring is provided with a lifting hole, and the lower end of the lifting ring is provided with a guide rod along the vertical direction;

the sliding sleeve is arranged on the guide rod in a sliding mode, and the sliding sleeve driving device is arranged on the hanging ring and used for driving the sliding sleeve to slide up and down along the guide rod;

the sliding sleeve is provided with N mounting grooves at equal intervals along the circumferential direction, the mounting grooves are arranged along the vertical direction, each movable clamping piece is respectively positioned in the corresponding mounting groove, the upper end of each movable clamping piece is provided with a clamping groove I, the upper end of each mounting groove is provided with an annular groove along the circumferential direction, an annular clamping ring is positioned in the annular groove, and the clamping ring is clamped in the clamping groove I of each movable clamping piece;

the conical head is of a conical structure and is arranged at the lower end of the guide rod, and the conical head and the guide rod are arranged in the same axis;

the lifting piece is fixed on the PC prefabricated part, an inner hole is formed in the lifting piece, the inner diameter of an opening at the upper end of the inner hole is narrowed to form a taper hole, when each movable clamping piece is inserted into the inner hole of the lifting piece, the sliding sleeve driving device drives the sliding sleeve to move downwards, each movable clamping piece slides along the conical surface of the conical head, and the movable clamping pieces rotate outwards around the clamping ring until the outer end face of each movable clamping piece is in contact with the conical surface of the taper hole.

In order to realize automatic alignment, a joint bearing is arranged in a hanging hole at the upper end of the hanging ring.

Furthermore, above-mentioned sliding sleeve drive arrangement includes and sets up in the electric putter of the rings left and right sides along vertical direction respectively, the electric putter upper end is installed on the rings through screw I, and the tailpiece of the piston rod end of its lower extreme is fixed in the outside end of sliding sleeve through screw II.

In order to facilitate resetting, the movable clamping pieces are provided with clamping grooves II, the stretching springs arranged in a ring shape are clamped in the clamping grooves II of the movable clamping pieces, and when the stretching springs are in a free state, the movable clamping pieces are arranged in a vertical direction.

In order to facilitate connection, a nut is embedded in the PC prefabricated part, a screw rod is arranged at the lower end of the hanging piece along the vertical direction, and the hanging piece is screwed and fixed in the nut through the screw rod.

The utility model has the beneficial effects that: fixing the hanging piece on the PC prefabricated part, hooking the hanging ring on a hanging hook of a hoisting device through a hanging hole, driving the hanging ring to move to a position where the conical head is coaxial with the inner hole of the hanging piece by the hoisting device, driving the hanging ring to move downwards by the hoisting device, inserting the conical head and each movable clamping piece into the inner hole, the sliding sleeve driving device drives the sliding sleeve to move downwards, each movable clamping piece slides along the conical surface of the conical head, the movable clamping pieces rotate outwards around the clamping rings, because the upper end of the inner hole is a taper hole with the inner diameter gradually reduced, the diameter of the circle formed by each movable clamping piece is increased after each movable clamping piece rotates outwards and opens by taking the clamping ring as the circle center, therefore, when the lifting ring is lifted, the outer side end of each movable clamping piece is in contact with the conical surface of the conical hole, the PC prefabricated part is lifted, the lifting tool does not need to be manually disassembled in the whole process, and the safety of lifting operation is improved.

Drawings

FIG. 1 is a schematic front view of the present invention;

FIG. 2 is a schematic view of the present invention with the conical head inserted into the inner bore of the hanger;

FIG. 3 is a schematic view of the present invention with the movable clips in an open position;

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

in the figure, 1, a lifting ring 2, a guide rod 3, an electric push rod 4, a joint bearing 5, a screw I6, a sliding sleeve 7, a screw II 8, a conical head 9, a movable clamping piece 10, a lifting piece 11, an inner hole 12, a conical hole 13, a screw 14, a mounting groove 15, a clamping groove I16, an annular groove 17, a clamping ring 18, an extension spring 19 and a clamping groove II are arranged.

Detailed Description

The utility model will be further described with reference to fig. 1 to 4.

The utility model provides a PC prefabricated component hoisting machine electric hoisting point mechanism, includes: the upper end of the lifting ring 1 is provided with a lifting hole, and the lower end of the lifting ring is provided with a guide rod 2 along the vertical direction; the sliding sleeve 6 is slidably arranged on the guide rod 2, and the sliding sleeve driving device is arranged on the hanging ring 1 and used for driving the sliding sleeve 6 to slide up and down along the guide rod 2; the clamping device comprises N movable clamping pieces 9, wherein N is a positive integer greater than or equal to 2, N mounting grooves 14 are uniformly arranged on a sliding sleeve 6 at intervals in the circumferential direction, the mounting grooves 14 are arranged in the vertical direction, each movable clamping piece 9 is respectively positioned in the corresponding mounting groove 14, a clamping groove I15 is arranged at the upper end of each movable clamping piece 9, an annular ring-shaped ring groove 16 is arranged at the upper end of each mounting groove 14 in the circumferential direction, an annular clamping ring 17 is positioned in the annular ring groove 16, and the clamping ring 17 is clamped in the clamping groove I15 of each movable clamping piece 9; the conical head 8 is of a conical structure and is arranged at the lower end of the guide rod 2, and the conical head 8 and the guide rod 2 are arranged in the same axis; the hanging piece 10 is fixed on the PC prefabricated part, an inner hole 11 is formed in the hanging piece 10, the inner diameter of an opening at the upper end of the inner hole 11 is narrowed to form a taper hole 12, when each movable clamping piece 9 is inserted into the inner hole 11 of the hanging piece 10, the sliding sleeve driving device drives the sliding sleeve 6 to move downwards, each movable clamping piece 9 slides along the conical surface of the conical head 8, and the movable clamping pieces 9 rotate outwards around the clamping rings 17 until the outer end faces of the movable clamping pieces 9 are in contact with the conical surface of the taper hole 12. When a PC prefabricated part needs to be hoisted, a hoisting piece 10 is fixed on the PC prefabricated part, a hoisting ring 1 is hung on a hoisting hook of hoisting equipment through a hoisting hole, the hoisting equipment drives the hoisting ring 1 to move to a position where a conical head 8 is coaxial with an inner hole 11 of the hoisting piece 10, then the hoisting equipment drives the hoisting ring 1 to move downwards, so that the conical head 8 and each movable clamping piece 9 are inserted into the inner hole 11, a sliding sleeve driving device drives a sliding sleeve 6 to move downwards, each movable clamping piece 9 slides along a conical surface of the conical head 8, the movable clamping piece 9 rotates outwards around a clamping ring 17, the upper end of the inner hole 11 is a conical hole 12 with the inner diameter gradually reduced, the diameter of a circle formed by each movable clamping piece 9 is increased after each movable clamping piece 9 rotates outwards and is opened by taking the clamping ring 17 as a circle center, and therefore when the hoisting ring 1 is hoisted, the outer side end of each movable clamping piece 9 is contacted with the conical surface of the conical hole 12, thereby hoisting the PC prefabricated part is realized, the whole process does not need manual work to dismantle the lifting appliance, and the safety of lifting operation is improved. When the PC prefabricated part is hoisted in place, the sliding sleeve driving device drives the sliding sleeve 6 to move upwards, and each movable clamping piece 9 is restored to be in a vertical state and can be separated from the inner hole 11 of the hoisting piece 10.

Preferably, the knuckle bearing 4 is installed in a hanging hole at the upper end of the hanging ring 1. The oscillating bearing 4 is arranged in the lifting ring 1, so that the rotation of the inner ring relative to the outer ring of the oscillating bearing 4 can be utilized during lifting, the automatic centering of the gravity center is realized, and the lifting safety and reliability are improved.

The sliding sleeve driving device can be of a structure comprising electric push rods 3 which are respectively arranged at the left side and the right side of the lifting ring 1 along the vertical direction, the upper ends of the electric push rods 3 are arranged on the lifting ring 1 through screws I5, and the head ends of piston rods at the lower ends of the electric push rods are fixed at the outer ends of the sliding sleeves 6 through screws II 7. The two electric push rods 3 act, and piston rods of the electric push rods extend outwards, so that the two electric push rods jointly drive the sliding sleeve 6 to slide downwards under the guidance of the guide rod 2. When the piston rod of the electric push rod 3 retracts inwards, the piston rod and the piston rod jointly drive the sliding sleeve 6 to slide upwards under the guidance of the guide rod 2.

Furthermore, a clamping groove II 19 is formed in each movable clamping piece 9, the extension spring 18 arranged in a circular ring shape is clamped in the clamping groove II 19 of each movable clamping piece 9, and when the extension spring 18 is in a free state, each movable clamping piece 9 is arranged in a vertical direction. When each movable clamping piece 9 rotates outwards, the movable clamping pieces enable the extension springs 18 to store energy in an extending mode, and when the sliding sleeve 6 moves upwards to enable each movable clamping piece 9 to be far away from the conical head 8, each movable clamping piece 9 rotates inwards to be in a vertical state under the elastic force of the extension springs 18.

Further, a nut is embedded in the PC prefabricated part, a screw 13 is vertically arranged at the lower end of the hanger 10, and the hanger 10 is screwed and fixed in the nut through the screw 13. Through set up the nut in PC prefabricated component to when needs handling, only need to hang 10 and fasten in the nut through screw 13 with hanging, can realize hanging 10 and PC prefabricated component's being connected fixedly, easy operation is convenient.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that changes may be made in the embodiments and/or equivalents thereof without departing from the spirit and scope of the utility model. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (5)

1. The utility model provides a PC prefabricated component hoisting machine electronic hoisting point mechanism which characterized in that includes:

the upper end of the lifting ring (1) is provided with a lifting hole, and the lower end of the lifting ring is provided with a guide rod (2) along the vertical direction;

the sliding sleeve (6) is slidably arranged on the guide rod (2), and the sliding sleeve driving device is arranged on the hanging ring (1) and is used for driving the sliding sleeve (6) to slide up and down along the guide rod (2);

the clamping device comprises N movable clamping pieces (9), wherein N is a positive integer greater than or equal to 2, N mounting grooves (14) are uniformly arranged on a sliding sleeve (6) along the circumferential direction at intervals, the mounting grooves (14) are arranged along the vertical direction, each movable clamping piece (9) is respectively positioned in the corresponding mounting groove (14), a clamping groove I (15) is arranged at the upper end of each movable clamping piece (9), an annular ring-shaped groove (16) is arranged at the upper end of each mounting groove (14) along the circumferential direction, an annular clamping ring (17) is positioned in the annular groove (16), and the clamping ring (17) is clamped in the clamping groove I (15) of each movable clamping piece (9);

the conical head (8) is of a conical structure and is arranged at the lower end of the guide rod (2), and the conical head (8) and the guide rod (2) are arranged in the same axis;

hang piece (10), it is fixed in on the PC prefabricated component, be provided with hole (11) in hanging piece (10), the opening part internal diameter constriction of the upper end of hole (11) forms taper hole (12), and when each activity clamping piece (9) inserted in hole (11) of hanging piece (10), sliding sleeve drive arrangement drive sliding sleeve (6) move down, and each activity clamping piece (9) slides along the conical surface of conical head (8), and activity clamping piece (9) outwards rotates to the outside terminal surface of activity clamping piece (9) and contacts with the conical surface of taper hole (12) around snap ring (17).

2. The electric hoisting point mechanism of the PC prefabricated part hoisting machine as claimed in claim 1, wherein: and a joint bearing (4) is arranged in a lifting hole at the upper end of the lifting ring (1).

3. The electric hoisting point mechanism of the PC prefabricated part hoisting machine as claimed in claim 1, wherein: the sliding sleeve driving device comprises electric push rods (3) which are arranged on the left side and the right side of the lifting ring (1) in the vertical direction respectively, the upper ends of the electric push rods (3) are installed on the lifting ring (1) through screws I (5), and the head ends of piston rods at the lower ends of the electric push rods are fixed on the outer side ends of the sliding sleeves (6) through screws II (7).

4. The electric hoisting point mechanism of the PC prefabricated part hoisting machine as claimed in claim 1, wherein: the movable clamping pieces (9) are provided with clamping grooves II (19), the stretching springs (18) which are arranged in a circular ring shape are clamped in the clamping grooves II (19) of the movable clamping pieces (9), and when the stretching springs (18) are in a free state, the movable clamping pieces (9) are arranged in a vertical direction.

5. The electric hoisting point mechanism of the PC prefabricated part hoisting machine as claimed in claim 1, wherein: a nut is embedded in the PC prefabricated part, a screw rod (13) is arranged at the lower end of the hanging piece (10) along the vertical direction, and the hanging piece (10) is screwed and fixed in the nut through the screw rod (13).

Images