CN113291973A

CN113291973A - Assembled building construction high accuracy hoist

Info

Publication number: CN113291973A
Application number: CN202110782377.7A
Authority: CN
Inventors: 陈红
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-07-12
Filing date: 2021-07-12
Publication date: 2021-08-24
Anticipated expiration: 2041-07-12
Also published as: CN113291973B

Abstract

The invention relates to the technical field of assembly type building construction. The top of the cross beam is provided with a hoisting assembly used for being connected with hoisting equipment, a plurality of pairs of slings are symmetrically arranged on two sides of the bottom of the cross beam, and the bottom of each sling is provided with a connecting assembly used for being connected with a piece to be hoisted; the center of the bottom of the cross beam is also provided with a supporting and pressing mechanism for supporting and pressing the hanging piece so as to tighten the sling, and the supporting and pressing mechanism comprises a supporting and pressing plate arranged below the cross beam and a supporting and pressing assembly used for driving the supporting and pressing plate to move up and down. The invention can effectively prevent the hanging piece from swinging, and ensures the safety, stability and accuracy of the hanging.

Description

Assembled building construction high accuracy hoist

Technical Field

The invention relates to the technical field of assembly type building construction, in particular to a high-precision lifting appliance for assembly type building construction.

Background

The assembly type building is a building constructed in an assembly mode as the name implies; the method is different from the traditional pouring building and brick building in that the building modules are firstly produced in a factory or a production place and then assembled in a splicing mode on site. The mode can greatly improve the construction efficiency of the site because the mortar does not need to wait for drying, and meanwhile, the centralized treatment can be carried out because tool steps such as material mixing, stirring and the like do not exist, and the construction pollution is small.

In the construction process of the fabricated building, as the volume and the weight of part of the fabricated modules are large, one device which is widely used is a lifting appliance, and the lifting appliance is used for lifting the fabricated modules. At present, the conventional lifting appliance fixes the lifting element through a plurality of lifting cables, and because the lifting cables are flexible, when the windward area of the lifting element is large, the lifting element is easy to swing, slide, rotate and the like under the condition of wind, so that the stability is poor, and the potential safety hazard is increased.

Disclosure of Invention

The invention aims to provide a high-precision lifting appliance for assembly type building construction, which is stable in lifting.

In order to achieve the purpose of the invention, the technical scheme adopted by the invention is as follows: a high-precision lifting appliance for assembly type building construction comprises a cross beam, wherein a lifting assembly used for being connected with lifting equipment is arranged at the top of the cross beam, a plurality of pairs of lifting ropes are symmetrically arranged on two sides of the bottom of the cross beam, and a connecting assembly used for being connected with a to-be-lifted piece is arranged at the bottom of each lifting rope; the center of the bottom of the cross beam is also provided with a supporting and pressing mechanism for supporting and pressing the hanging piece so as to tighten the sling, and the supporting and pressing mechanism comprises a supporting and pressing plate arranged below the cross beam and a supporting and pressing assembly used for driving the supporting and pressing plate to move up and down.

Preferably, the upper end of the sling is Y-shaped, and two branches of the Y-shaped sling are respectively connected with the cross beam.

Preferably, the two sides of the bottom of the cross beam are provided with fixing heads corresponding to the positions of the slings, and the two Y-shaped branches of the slings are connected with the fixing heads.

Preferably, the supporting and pressing components comprise two groups and are symmetrically arranged on the left section and the right section of the cross beam; the supporting and pressing assembly comprises an upper chute fixedly arranged on the cross beam, a lower chute fixedly arranged on the supporting and pressing plate, and a first swing rod and a second swing rod which are hinged in an X shape; one ends of the first swing rod and the second swing rod are respectively hinged with two first hinged seats fixedly arranged at one ends of the upper sliding chute and the lower sliding chute, and the other ends of the first swing rod and the second swing rod are respectively hinged with two second hinged seats fixedly arranged on the upper sliding block and the lower sliding block; the upper sliding block and the lower sliding block are respectively positioned in the upper sliding groove and the lower sliding groove and are in sliding fit with the upper sliding groove and the lower sliding groove;

a driving assembly is arranged between the two groups of supporting and pressing assemblies and comprises a screw rod and a driving motor arranged between the upper chutes of the two groups of supporting and pressing assemblies; two ends of the screw rod respectively extend into the upper sliding chute and are in rotating fit with the upper sliding chute; the upper sliding block is sleeved outside the screw rod and forms threaded fit with the screw rod, and the thread directions of two ends of the screw rod are opposite; the middle section of the screw rod forms a worm section, the output end of the driving motor is provided with a turbine, and the worm section is meshed with the turbine.

Preferably, the top of the cross beam is provided with a fixing groove extending along the length direction of the cross beam, the cross section of a groove cavity of the fixing groove is in a convex shape, and the bottom surfaces of two shoulders in the convex shape are provided with first key teeth; the lifting assembly comprises a positioning sliding block matched with the fixing groove, a stud is arranged at the top of the positioning sliding block, and a fastening nut is matched on the stud; second key teeth matched with the first key teeth are arranged on two sides of the top surface of the positioning sliding block; the hoisting assembly further comprises a hoisting rope, and one end of the hoisting rope is connected with the stud.

Preferably, the lifting assemblies are provided with three groups, and the lifting ropes of the group of the lifting assemblies positioned in the center are provided with self-adaptive deviation rectifying assemblies; the self-adaptive deviation rectifying assembly comprises a fastening sleeve fixedly arranged on the lifting rope, and end discs are arranged at the upper end and the lower end of the fastening sleeve; the fastening sleeve is also sleeved with a lifting slide block, and a thick spring is arranged between the lifting slide block and an end disc at the lower end of the fastening sleeve; the front side surface of the lifting slide block is also provided with a wheel groove, and a guide wheel is arranged in the wheel groove; the lifting ropes of the two groups of lifting assemblies positioned on the left side and the right side are the same, and the corresponding lifting ropes bypass the guide wheel.

Preferably, the connecting assembly comprises a hanging head and a hanging cylinder fixedly arranged on the to-be-hung element, wherein the upper section of the hanging head is rod-shaped, and the lower section of the hanging head is spherical; the top of the hanging cylinder is provided with a top groove which is matched with the upper section of the hanging head and extends to the edge of the hanging cylinder, one side wall of the hanging cylinder is provided with a side groove into which the lower section of the hanging head extends, and the top groove is communicated with the side groove.

Preferably, the bottom of the hanging cylinder is also provided with a chassis, and a triangular reinforcing plate is arranged between the chassis and the side wall of the hanging cylinder; the hanging cylinder is pre-buried in the piece to be hung and is connected with the framework of the piece to be hung.

The beneficial effects of the invention are concentrated and expressed as follows: can effectually prevent to hang a swing, guaranteed the security, stability and the accuracy nature of hoist and mount. Specifically, in the using process, the beam is connected with hoisting equipment by using the hoisting assembly; the connecting component is used for connecting the sling with the piece to be hung, so that the stress of the sling on two sides of the piece to be hung is distributed in a balanced manner. Then pre-hoisting is carried out, and the hoisting equipment lifts the cross beam until the slings at the two sides of the cross beam are stretched straight; then the supporting and pressing assembly of the supporting and pressing mechanism is controlled to act, the supporting and pressing assembly drives the supporting and pressing plate to press downwards, the piece to be hung is pressed tightly, and all hoisting preparations are completed. And finally, controlling the cross beam to hoist the to-be-hoisted piece by the worker according to the normal hoisting requirement. Compared with the traditional mode of independently utilizing the sling, the sling can be tightened by the supporting and pressing mechanism, the swing margin of the sling in the hoisting process is reduced, and the hoisting is more stable and safer as a whole.

Drawings

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

FIG. 2 is a schematic view of the installation of a sling to a cross-member;

FIG. 3 is a schematic view of the installation of the bracing and pressing mechanism on the cross beam;

FIG. 4 is an enlarged view of portion A of FIG. 1;

FIG. 5 is a top view of the elevator slide;

FIG. 6 is an enlarged view of portion B of FIG. 3;

fig. 7 is a schematic structural view of the connecting assembly.

Detailed Description

As shown in fig. 1 to 7, the high-precision lifting appliance for assembly type building construction is mainly used for lifting floor slabs, wall slabs, beam columns and the like used by an assembly type building, as shown in fig. 1, the high-precision lifting appliance comprises a cross beam 1, wherein a lifting assembly used for being connected with lifting equipment is arranged at the top of the cross beam 1, and the lifting assembly is used as a connecting part between the high-precision lifting appliance and the lifting equipment (namely lifting equipment such as a gantry crane, a tower crane, a crane and the like), and is connected with the cross beam on one hand and a lifting point of the lifting equipment on the other hand.

The simplest lifting component is a lifting rope, one end of the lifting rope is connected with the center of gravity (usually the center) of the cross beam 1, and the other end of the lifting rope is connected with a lifting point. However, the cross beam 1 on which the workpiece is already mounted is limited by the influence of the assembly balance and the self weight of the workpiece, and the overall center of gravity of the cross beam 1 has a certain deviation, so that the connecting position of the lifting rope and the cross beam 1 of the invention has a certain adjustable function so as to improve the balance of the attitude in the air. Therefore, as shown in fig. 3 and 6, the top of the cross beam 1 may be provided with a fixing groove 16 extending along the length direction of the cross beam 1, the cross section of the groove cavity of the fixing groove 16 is convex, the notch faces upwards, and the bottom surfaces of the two shoulders of the convex are provided with first key teeth 17.

The lifting assembly comprises a positioning sliding block 18 matched with the fixing groove 16, a stud 19 is arranged at the top of the positioning sliding block 18, a fastening nut 20 is matched on the stud 19, and second key teeth 21 matched with the first key teeth 17 are arranged on two sides of the top surface of the positioning sliding block 18. The positioning slider 18 can be locked in the fixing groove 16 by a fastening nut 20 and can form a limit by the meshing of the first key teeth 17 and the second key teeth 21. The hoisting assembly further comprises a hoisting rope 22, and one end of the hoisting rope 22 is connected with the stud 19. When the adjustment is needed, the locking nut 20 is unscrewed, the positioning sliding block 18 can freely slide in the fixing groove 16, and after the adjustment is in place, the nut 20 is locked tightly. The invention adopts the matching mode of the first key teeth 17 and the second key teeth 21 to form limiting, has larger stepless adjustment margin and better flexibility.

In general, 1 group of hoisting assemblies can be arranged, and the upper ends of the hoisting ropes 22 of the hoisting assemblies are connected with hoisting points, but because the stability of a single hoisting rope 22 is relatively poor, in order to further improve the stability and balance after hoisting, the invention can be better implemented by arranging three groups of hoisting assemblies, and arranging the self-adaptive deviation rectifying assemblies on the hoisting ropes 22 of the group of hoisting assemblies positioned in the center as shown in fig. 1, 2 and 4. The self-adaptive deviation rectifying assembly comprises a fastening sleeve 23 fixedly arranged on the lifting rope 22, and the fastening sleeve 23 is directly fixedly arranged on the lifting rope 22 in an anchoring mode, a clamping mode and the like. The upper and lower ends of the fastening sleeve 23 are provided with end discs 24. The fastening sleeve 23 is further sleeved with a lifting slider 25 as shown in fig. 5, a thick spring 26 is arranged between the lifting slider 25 and an end disc 24 at the lower end of the fastening sleeve 23, and the thick spring 26 is a spring with a larger elastic force, is surrounded by a thicker steel wire, and has a higher strength to provide a larger supporting force. The front side surface of the lifting slide block 25 is also provided with a wheel groove 27, and a guide wheel 28 is arranged in the wheel groove 27. The lifting ropes 22 of the two groups of lifting assemblies positioned at the left side and the right side are the same, and the corresponding lifting ropes 22 bypass the guide wheel 28. In this way, the connection point of the lifting rope 22 of the central lifting assembly and the cross beam 1 is used as a main stress point, and even if the stress point is compared with the overall center, a certain deviation exists in the lifting process. The same lifting rope 22 of the lifting assemblies on two sides can be supported by the thick spring 26, and the whole body tends to be more balanced by utilizing the pulling of the lifting rope 22. Of course, this method can only adjust the center of gravity slightly, which has a beneficial effect on the overall stability, but it is not suitable for the situation that the deviation between the stress point and the overall center is too large.

Regarding the connection condition between the cross beam 1 and the hanging piece, the invention adopts the mode that a plurality of pairs of suspension ropes 2 are symmetrically arranged on two sides of the bottom of the cross beam 1, and the bottom of each suspension rope 2 is provided with a connecting component for connecting with the piece to be hung. The two sides of the part to be hung are fixed through a plurality of pairs of evenly distributed suspension ropes 2, so that the hoisting balance is better. And the mode of multi-point fixation is also favorable for sharing single-point pressure, and the risk of cable breakage is reduced. The invention provides a connecting assembly for connecting a sling 2 with a member to be hung, the specific structure of which can be adjusted according to actual conditions, for example, the connecting assembly can be in a U-shaped clamping type or a hook type, and the invention focuses on a connecting assembly mainly used for hoisting wall boards, laminated boards and the like, as shown in fig. 7, the connecting assembly comprises a hoisting head 29 and a hoisting cylinder 30 fixedly arranged on the member to be hung, and the upper section of the hoisting head 29 is in a rod shape, and the lower section of the hoisting head is in a ball shape.

The top of the hanging cylinder 30 is provided with a top groove 31 which is matched with the upper section of the hanging head 29 and extends to the edge of the hanging cylinder 30, one side wall of the hanging cylinder 30 is provided with a side groove 32 for the lower section of the hanging head 29 to extend into, and the top groove 31 is communicated with the side groove 32. When the hanging head 29 is used, the hanging head 29 is inserted from the side groove 32 on the side edge, and after the hanging head is lifted, the hanging head 29 is clamped in the hanging cylinder 30, so that stable fixation is realized. Of course, in order to improve the stability of the connection between the hanging cylinder 30 and the member to be hung, the bottom of the hanging cylinder 30 is further provided with a chassis 33, and a triangular reinforcing plate is arranged between the chassis 33 and the side wall of the hanging cylinder 30. The hanging cylinder 30 can be pre-buried in the piece to be hung and connected with the framework of the piece to be hung, the connection with the framework can be bundling, bolt connection and the like, and the structure is relatively simple and conventional, so that the detailed description is omitted in the invention.

Compared with the traditional lifting appliance, the invention has the biggest difference that the center of the bottom of the cross beam 1 is also provided with a supporting and pressing mechanism for supporting and pressing the lifting element to tighten the sling 2, and the supporting and pressing mechanism comprises a supporting and pressing plate 3 arranged below the cross beam 1 and a supporting and pressing assembly for driving the supporting and pressing plate 3 to move up and down. After the sling 2 is connected with the parts to be lifted, because the sling 2 is flexible, in the lifting process, the sling 2 can not maintain a straight state due to the influence of swing caused by airflow, rotation inertia and the like, and a connecting component has certain tripping risk. Therefore, the invention utilizes the supporting and pressing mechanism to support the supporting and pressing plate, so that the sling 2 is straightened, and the condition is further effectively improved. Meanwhile, after the supporting and pressing mechanism is retracted, the sling 2 can be in a flexible state, and the flexibility of normal use is not influenced.

The supporting and pressing mechanism has more specific forms, for example, the supporting and pressing mechanism can be two vertical hydraulic cylinders or an electric push rod and the like, but the supporting and pressing mechanism mainly aims at workpieces such as wallboards, laminates and the like and has a certain length, so that the supporting and pressing stability cannot be ensured by single-point supporting and pressing. Therefore, the invention is better to adopt a plurality of hydraulic cylinders, electric push rods and other components which are arranged linearly to form linear supporting pressure, which can cause the sharp rise of the equipment cost and the weight.

For this purpose, as shown in fig. 1 and 3, the supporting and pressing mechanism of the present invention includes two sets of supporting and pressing components, and the two sets of supporting and pressing components are symmetrically arranged on the left and right sections of the cross beam 1. The supporting and pressing component comprises an upper chute 5 fixedly arranged on the cross beam 1, a lower chute 6 fixedly arranged on the supporting and pressing plate 3, and a first swing rod 7 and a second swing rod 8 which are hinged in an X shape. One ends of the first swing rod 7 and the second swing rod 8 are respectively hinged with two first hinged seats 9 fixedly arranged at one ends of the upper sliding chute 5 and the lower sliding chute 6, and the other ends of the first swing rod 7 and the second swing rod 8 are respectively hinged with two second hinged seats 13 fixedly arranged on the upper sliding block 10 and the lower sliding block 11. The upper sliding block 10 and the lower sliding block 11 are respectively positioned in the upper sliding groove 5 and the lower sliding groove 6 and form sliding fit with the upper sliding groove 5 and the lower sliding groove 6.

And a driving assembly is arranged between the two groups of supporting and pressing assemblies and comprises a screw rod 14 and a driving motor 15 arranged between the upper chutes 5 of the two groups of supporting and pressing assemblies. Two ends of the screw rod 14 respectively extend into the upper chute 5 and are in running fit with the upper chute 5. The upper sliding block 10 is sleeved outside the screw rod 14 and forms threaded fit with the screw rod 14, and the thread directions of two ends of the screw rod 14 are opposite. The middle section of the screw rod 14 forms a worm section, the output end of the driving motor 15 is provided with a turbine, and the worm section is meshed with the turbine.

When the device is used, the driving motor 15 acts to drive the worm wheel to act, so that the worm section of the screw rod 14 and the whole screw rod 14 are driven to act, the upper sliding blocks 10 are driven to mutually approach or separate, and finally the first swing rod 7 and the second swing rod 8 are driven to swing, so that the supporting plate 3 is lifted. After the supporting and pressing mechanism is opened, the sling 2 can be stably tightened.

On the basis, in order to further improve the stability of the sling 2, the upper end of the sling 2 is Y-shaped, and two branches of the Y shape are respectively connected with the cross beam 1. Two sides of the bottom of the cross beam 1 are provided with fixing heads 4 corresponding to the positions of the slings 2, and two Y-shaped branches of the slings 2 are connected with the fixing heads 4. After the sling 2 is straightened in this way, two oblique pulls are formed by the Y-shaped structure, and a plurality of oblique pulls are formed by the Y-shaped structures of a plurality of slings 2, so that the possibility of swinging of the sling 2 after being straightened can be further reduced, and the stability of the sling can be greatly improved.

Claims

1. The utility model provides an assembly type high accuracy hoist of construction which characterized in that: the lifting device comprises a cross beam (1), wherein a lifting assembly used for being connected with lifting equipment is arranged at the top of the cross beam (1), a plurality of pairs of slings (2) are symmetrically arranged on two sides of the bottom of the cross beam (1), and a connecting assembly used for being connected with a to-be-lifted piece is arranged at the bottom of each sling (2); the center of crossbeam (1) bottom still is provided with and is used for propping the pressure mechanism that props that presses the piece so that hoist cable (2) are tight, prop pressure mechanism including setting up propping clamp plate (3) and being used for the drive to prop the pressure subassembly that props clamp plate (3) elevating movement in crossbeam (1) below.

2. The fabricated building construction high-precision lifting appliance according to claim 1, wherein: the upper end of the sling (2) is Y-shaped, and two branches of the Y-shaped sling are respectively connected with the cross beam (1).

3. The fabricated building construction high-precision lifting appliance according to claim 2, wherein: two sides of the bottom of the cross beam (1) are provided with fixing heads (4) corresponding to the positions of the slings (2), and two Y-shaped branches of the slings (2) are connected with the fixing heads (4).

4. The fabricated building construction high-precision lifting appliance according to claim 3, wherein: the supporting and pressing components comprise two groups and are symmetrically arranged on the left section and the right section of the cross beam (1); the supporting and pressing assembly comprises an upper chute (5) fixedly arranged on the cross beam (1), a lower chute (6) fixedly arranged on the supporting and pressing plate (3), and a first swing rod (7) and a second swing rod (8) which are hinged in an X shape; one ends of the first swing rod (7) and the second swing rod (8) are respectively hinged with two first hinged seats (9) fixedly arranged at one ends of the upper sliding chute (5) and the lower sliding chute (6), and the other ends of the first swing rod (7) and the second swing rod (8) are respectively hinged with two second hinged seats (13) fixedly arranged on the upper sliding block (10) and the lower sliding block (11); the upper sliding block (10) and the lower sliding block (11) are respectively positioned in the upper sliding groove (5) and the lower sliding groove (6) and are in sliding fit with the upper sliding groove (5) and the lower sliding groove (6);

a driving assembly is arranged between the two groups of supporting and pressing assemblies, and comprises a screw rod (14) and a driving motor (15) arranged between the upper chutes (5) of the two groups of supporting and pressing assemblies; two ends of the screw rod (14) respectively extend into the upper chute (5) and are in running fit with the upper chute (5); the upper sliding block (10) is sleeved outside the screw rod (14) and forms threaded fit with the screw rod (14), and the thread directions of two ends of the screw rod (14) are opposite; the middle section of the screw rod (14) forms a worm section, the output end of the driving motor (15) is provided with a turbine, and the worm section is meshed with the turbine.

5. The fabricated building construction high-precision lifting appliance according to claim 4, wherein: the top of the cross beam (1) is provided with a fixing groove (16) extending along the length direction of the cross beam (1), the cross section of a groove cavity of the fixing groove (16) is in a convex shape, and the bottom surfaces of two shoulders in the convex shape are provided with first key teeth (17); the hoisting assembly comprises a positioning sliding block (18) matched with the fixing groove (16), a stud (19) is arranged at the top of the positioning sliding block (18), and a fastening nut (20) is matched on the stud (19); second key teeth (21) matched with the first key teeth (17) are arranged on two sides of the top surface of the positioning sliding block (18); the hoisting assembly further comprises a hoisting rope (22), and one end of the hoisting rope (22) is connected with the stud (19).

6. The fabricated building construction high-precision lifting appliance according to claim 5, wherein: the lifting assemblies are provided with three groups, and the lifting ropes (22) of the group of the lifting assemblies positioned in the center are provided with self-adaptive deviation rectifying assemblies; the self-adaptive deviation rectifying assembly comprises a fastening sleeve (23) fixedly arranged on the lifting rope (22), and end discs (24) are arranged at the upper end and the lower end of the fastening sleeve (23); a lifting slide block (25) is further sleeved on the fastening sleeve (23), and a thick spring (26) is arranged between the lifting slide block (25) and an end disc (24) at the lower end of the fastening sleeve (23); the front side surface of the lifting slide block (25) is also provided with a wheel groove (27), and a guide wheel (28) is arranged in the wheel groove (27); the lifting ropes (22) of the two groups of lifting assemblies positioned at the left side and the right side are the same, and the corresponding lifting ropes (22) bypass the guide wheel (28).

7. The fabricated building construction high-precision lifting appliance according to claim 6, wherein: the connecting component comprises a hanging head (29) and a hanging cylinder (30) fixedly arranged on the to-be-hung element, wherein the upper section of the hanging head (29) is rod-shaped, and the lower section of the hanging head is spherical; the top of the hanging cylinder (30) is provided with a top groove (31) which is matched with the upper section of the hanging head (29) and extends to the edge of the hanging cylinder (30), a side groove (32) for the lower section of the hanging head (29) to extend into is arranged on one side wall of the hanging cylinder (30), and the top groove (31) is communicated with the side groove (32).

8. The fabricated building construction high-precision lifting appliance according to claim 7, wherein: the bottom of the hanging cylinder (30) is also provided with a chassis (33), and a triangular reinforcing plate is arranged between the chassis (33) and the side wall of the hanging cylinder (30); the hanging cylinder (30) is pre-buried in the piece to be hung and is connected with the framework of the piece to be hung.