CN214003850U

CN214003850U - Lifting equipment for lifting prefabricated part

Info

Publication number: CN214003850U
Application number: CN202022853309.9U
Authority: CN
Inventors: 周兆弟
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-12-02
Filing date: 2020-12-02
Publication date: 2021-08-20
Anticipated expiration: 2030-12-02

Abstract

The utility model relates to a prefabricated component mechanical equipment technical field especially relates to a lift by crane equipment for promoting prefabricated component, include: the distance between two hoisting mechanisms positioned at the two extreme ends is larger than or equal to the length value of the prefabricated part, and the arrangement direction of the hoisting mechanisms is approximately parallel to the length direction of the prefabricated part. The utility model provides a lift by crane equipment for promoting prefabricated component can effectively reduce the use of built-in fitting, reduces metal material's in the prefabricated component waste, has improved prefabricated component's overall structure intensity and life simultaneously.

Description

Lifting equipment for lifting prefabricated part

Technical Field

The utility model relates to a prefabricated component mechanical equipment technical field especially relates to a lift by crane equipment for promoting prefabricated component.

Background

With the rapid development of the building industry, the concrete prefabricated part is widely used in the building industry, and the hoisting and demoulding problems of the prefabricated part are paid considerable attention due to the length and the weight of the prefabricated part. At present, most of the adopted hoisting modes are hoisting and demolding prefabricated parts by utilizing a travelling crane, and in the hoisting process, in order to avoid damaging the structure of the prefabricated parts during hoisting and demolding, a plurality of embedded parts embedded in advance on the prefabricated parts are often used as points to be hoisted for hoisting. However, because the embedded parts are made of metal and partially exposed outside the prefabricated parts, embedding a plurality of embedded parts on the body of the prefabricated parts can greatly improve the material cost of the prefabricated parts, and after the prefabricated parts are driven into the soil layer, the exposed embedded parts can be corroded for a period of time under the action of acid and alkali substances, so that the reinforcement cage in the prefabricated parts can be corroded, and the integral structural strength and the service life of the prefabricated parts are influenced.

SUMMERY OF THE UTILITY MODEL

In order to overcome the above-mentioned not enough among the prior art, the utility model aims to provide a lift by crane equipment for promoting prefabricated component.

For realizing the purpose of the utility model, the utility model adopts the following technical scheme:

the utility model provides a lift by crane equipment for promoting prefabricated part, include: the device comprises a walking type frame and more than three hoisting mechanisms which are arranged on the walking type frame at intervals along the linear direction, wherein the distance between the two hoisting mechanisms at the two most ends is larger than or equal to the length value of the prefabricated part, and the arrangement direction of the hoisting mechanisms is approximately parallel to the length direction of the prefabricated part.

In this technical scheme, the walking frame includes: the walking mechanism is arranged at the bottom of the supporting leg.

The hoisting mechanism comprises: the lifting device comprises a winding drum, a driving device, a traction mechanism and a gripping and clamping mechanism, wherein a driving shaft of the driving device is in transmission connection with the winding drum, the driving device can drive the winding drum to rotate around an axis, one end of the traction mechanism is wound on the outer wall of the winding drum, the other end of the traction mechanism is fixedly connected with the gripping and clamping mechanism, the traction mechanism stretches and retracts along with the rotation of the winding drum to control the gripping and clamping mechanism to lift, and part of the gripping and clamping mechanisms clamp points to be lifted on a prefabricated part;

a brake is arranged at the transmission connection part of a driving shaft of the driving device and the winding drum;

the traction mechanism comprises a rope or a chain, the gripping mechanism comprises a claw, a lifting hook or a clamping jaw, and the driving device comprises a driving motor or a driving oil cylinder.

The two ends of the winding drum on each winding mechanism extend outwards to form transmission shafts, the transmission shaft at least one end of each winding drum is in transmission connection with a driving shaft of a driving device, and the driving device is electrically connected with a control switch;

the outer diameters of the winding drums on the hoisting mechanisms are the same.

Furthermore, transmission shafts on winding drums of at least two adjacent winding mechanisms are fixedly connected through a coupler, at least one winding drum is connected with the driving device, and the winding drum connected with the driving device drives the other winding drums to synchronously rotate around the axis;

the axes of the transmission shafts are approximately at the same horizontal height position.

Furthermore, the cross beam is of a plate-shaped or frame-shaped structure, the middle part of the cross beam is communicated in the vertical direction, the traction mechanism penetrates through the cross beam to drive the gripping mechanism to lift, and the gripping mechanism is controlled to grip a to-be-lifted point on the prefabricated part.

Furthermore, an automatic identification sensor is arranged on the grabbing and clamping mechanism, and a marker for identifying the automatic identification sensor is arranged on the point to be hung.

Wherein, the automatic identification inductor is an infrared identification inductor or a magnetic identification inductor.

Furthermore, the two ends of the prefabricated member are provided with detachable tensioning parts, in this embodiment, the tensioning parts may be tensioning rods and/or tensioning plates, the distance between the end surfaces of the two tensioning parts is greater than or equal to the distance between the gripping mechanisms of the two hoisting mechanisms at the two ends, the length value of the prefabricated member is less than or equal to the distance between the gripping mechanisms of the two hoisting mechanisms at the two ends, the prefabricated member is provided with embedded parts, and the tensioning screw rod and the embedded parts serve as points to be hung.

The embedded part embedded in the prefabricated part in advance can be a hanging ring, a lifting hook or an embedded nut.

Compared with the prior art, the beneficial effects of the utility model reside in that: the hoisting mechanisms are arranged on the traveling rack at intervals along the linear direction, so that the prefabricated parts can be stressed at multiple points when lifted, the bending moment applied to the prefabricated parts is reduced, and the prefabricated parts are prevented from being bent and broken under the action of self gravity. In addition, the distance between the two hoisting mechanisms positioned at the two extreme ends is larger than or equal to the length value of the prefabricated part, so that the hoisting mechanisms at the two extreme ends can use the tension pieces at the two end parts or one end part of the prefabricated part as temporary hoisting points to hoist and demould the prefabricated part. Therefore, the number of embedded parts on the surface of the prefabricated part is reduced, the material cost of the prefabricated part is reduced, the integral structural strength of the prefabricated part is improved, and the service life of the prefabricated part is prolonged.

Drawings

Fig. 1 is a schematic overall structure diagram of a lifting device for lifting a prefabricated part according to an embodiment of the present invention;

FIG. 2 is a schematic top view of FIG. 1;

fig. 3 is a schematic structural diagram of another hoisting apparatus for lifting prefabricated parts according to an embodiment of the present invention.

In the drawings:

1. a traveling frame; 11. a cross beam; 12. a support leg; 121. a traveling mechanism;

2. a hoisting mechanism; 21. a reel; 22. a traction mechanism; 23. a drive device; 24. a brake; 25. a gripping mechanism;

3. prefabricating a component; 31. embedding parts; 32. a tension member;

4. a coupling is provided.

Detailed Description

In order to make the technical field better understand the solution of the present invention, the following detailed description of the present invention is provided with reference to the accompanying drawings and the detailed description.

In this specification, terms such as "upper, lower, inner, and outer" are established based on positional relationships shown in the drawings, and the corresponding positional relationships may vary depending on the drawings, and therefore, the terms are not to be construed as absolutely limiting the scope of protection; moreover, relational terms such as "first" and "second," and the like, may be used solely to distinguish one element from another element having the same name, without necessarily requiring or implying any actual such relationship or order between such elements.

Referring to fig. 1 and fig. 2, fig. 1 is a lifting apparatus for lifting a prefabricated part according to an embodiment of the present invention, and fig. 2 is a top view of fig. 1.

In order to solve the problem that the prefabricated part 3 is provided with too many embedded parts 31, the embedded parts 31 are mainly made of metal and exposed outside the prefabricated part to be in contact with soil, so that the too many embedded parts 31 not only cause resource waste, but also cause a great amount of corrosion to the partially exposed embedded parts 31 under the action of acid and alkali substances, so that reinforcement cages inside the prefabricated part 3 are corroded together, the structural strength of the prefabricated part 3 is influenced, and metal ions generated after corrosion are retained in the soil to cause environmental problems. In the present embodiment, there is mainly provided a hoisting apparatus for lifting a prefabricated part 3, including: the travelling frame 1 and the hoisting mechanisms 2 arranged on the travelling frame 1 at intervals along the linear direction are provided, wherein the distance L1 between the two hoisting mechanisms 2 positioned at the two ends of the travelling frame 1 is greater than or equal to the length value L2 of the prefabricated part 3, and the arrangement direction of the hoisting mechanisms 2 is approximately parallel to one length direction of the prefabricated part 3.

In the structure, more than three hoisting mechanisms 2 are arranged on the walking type rack 1 at intervals along the linear direction, so that the prefabricated part 3 can be clamped at multiple points when the prefabricated part 3 is hoisted, the bending moment borne by the prefabricated part 3 is reduced, and the prefabricated part 3 is prevented from being bent and broken under the action of self gravity. In addition, the distance between the two hoisting mechanisms 2 at the two extreme ends is greater than or equal to the length of the prefabricated part 3, so that the hoisting mechanisms 2 at the two extreme ends can hoist and demould the prefabricated part 3 by using the tensioning members 32 at the two end parts or one end part of the prefabricated part 3 as temporary hoisting points. Therefore, the quantity of embedded parts 31 on the surface of the prefabricated part 3 is reduced, the material cost of the prefabricated part 3 is reduced, the overall structural strength of the prefabricated part 3 is improved, and the service life of the prefabricated part is prolonged.

In addition, because the prefabricated part 3 generally needs to stretch the reinforcement cage pre-embedded in the prefabricated part 3 to enable the reinforcement cage to have prestress, two ends of the prefabricated part 3 are generally connected with a tensioning structure before demolding, when the prefabricated part 3 is lifted, two hoisting mechanisms 2 positioned at the two ends can transfer the lifting positions to the tensioning structure of the prefabricated part 3, the two ends of which are not completely disassembled, the tensioning structure is used as a lifting point, so that the lifting points applied to the prefabricated part 3 are reduced, the lifting points of the prefabricated part 3 are reduced, and the hoisting mechanisms 2 positioned at the two ends are matched with the hoisting mechanisms 2 positioned at the middle position for use, so that the prefabricated part 3 is lifted and demolded. Thereby reduce the use in a large number of built-in fitting 31, and then reduced the waste of resource, also guaranteed prefabricated component 3's overall structure intensity simultaneously, prolonged prefabricated component 3's life.

Further, as shown in fig. 1, in this embodiment, the tensioning structures at two end portions of the prefabricated component 3 are tensioning pieces 32, that is, the tensioning pieces 32 capable of being detached are disposed at two end portions of the prefabricated component 3, a distance L3 between end surfaces of the two tensioning pieces 32 is less than or equal to a distance L4 between the gripping and clamping mechanisms 25 of the hoisting mechanism 2 located at the two ends, and a length L2 of the prefabricated component 3 is less than or equal to L4, so that the gripping and clamping mechanisms 25 on the hoisting mechanism 2 can smoothly grip the tensioning pieces 32 at two end portions of the prefabricated component 3, the embedded piece 31 is embedded in the middle position of the prefabricated component 3 in advance, and the tensioning piece 32 and the embedded piece 31 can serve as points to be lifted in the above structure, as in the above structural design, the lifting device for lifting the prefabricated component 3 can finish lifting the prefabricated component 3 in the same way on the premise of greatly reducing the embedded piece 31, only the gripping and clamping mechanism 25 is needed to grip and clamp the tension members 32 at the two ends of the prefabricated part 3, and three-point hoisting can be completed by matching with the embedded members 31 at the middle position of the prefabricated part 3, so that the hoisting stability is ensured.

Specifically, bury in built-in fitting 31 of prefabricated component 3 intermediate position department in advance can be rings, lifting hook, perhaps buried nut etc. because rings, lifting hook and buried nut itself have small characteristics for the installation of built-in fitting 31 is more convenient, can not cause too big influence to prefabricated component 3 itself simultaneously.

As shown in fig. 1, in this embodiment, the walking frame 1 is mainly composed of a cross beam 11 and a supporting leg 12, and a walking mechanism 121 is further disposed at the bottom of the supporting leg 12, so that the prefabricated parts 3 at different positions can be lifted, and the lifting efficiency is improved. The mentioned traveling mechanism 121 may be a roller or a wheel or a combination of a pulley and a slide rail or a combination of a slide rail, and the two ends of the prefabricated part 3 are provided with corresponding rails, and the rails are as far away from the prefabricated part 3 as possible so as to avoid affecting the production of the prefabricated part 3, and may be used for the traveling distance of the traveling frame 1. The hoisting mechanism 2 on the beam 11 includes a winding drum 21, a driving device 23, a traction mechanism 22 and a gripping mechanism 25, and the driving device 23 is in transmission connection with the winding drum 21 through a driving shaft, so that the driving device 23 can drive the winding drum 21 to rotate around the axis of the driving shaft, as shown in fig. 1, it can be known that one end of the traction mechanism 22 is wound on the outer wall of the winding drum 21, the other end is fixedly connected with the gripping mechanism 25, the traction mechanism 22 can extend and retract along with the rotation of the winding drum 21 so as to control the gripping mechanism 25 to ascend and descend, wherein, part of the gripping mechanisms 25 grip points to be hoisted on the prefabricated members 3. According to the structure design, the structure is simple, the reliability is high, and the hoisting of the prefabricated part 3 is more convenient. Meanwhile, a brake 24 is arranged at the position where the driving shaft of the driving device 23 is in transmission connection with the winding drum 21, and the brake 24 can be used for braking and stopping at any time in the process of hoisting the prefabricated part 3, so that the operation safety is ensured.

According to the above structure, in the present embodiment, the traction mechanism 22 for drawing the gripping mechanism 25 is a rope or a chain, and is characterized by being conveniently wound on the winding drum 21 of the winding mechanism 2, wherein the gripping mechanism 25 is a claw, a hook or a clamping jaw for clamping an embedded part 31 with a hooking part, such as a hanging ring. And the driving device 23 in charge of the power system of the whole hoisting mechanism 2 is a driving motor, a driving oil cylinder and the like, so that the whole hoisting equipment for hoisting the prefabricated part 3 has more guaranteed power output. Of course, the above structural design is not limited to only the above-described several configurations.

In this embodiment, two ends of the winding drum 21 on the winding mechanism 2 extend outward to form transmission shafts, and at least one of the transmission shafts is in transmission connection with a driving shaft on the driving device 23, and the driving device 23 is further electrically connected with a control switch. As shown in fig. 1, the driving devices 23 are provided with control switches, so that the driving devices 23 can be controlled individually, and when the hoisting height of the prefabricated part 3 is different due to external reasons during hoisting, the two ends of the prefabricated part 3 are not in the same horizontal line, that is, the control switches control the corresponding driving devices 23 to perform height adjustment, so as to hoist the prefabricated part 3 at multiple points, and improve the stability of the prefabricated part 3 during hoisting. The outer diameters of all the winding drums 21 arranged on the winding drums 2 are the same, and the traction mechanisms 22 wound on the outer walls of the winding drums 21 are always at the same horizontal height in the lifting process, so that the situation that the telescopic lengths of the traction mechanisms 22 are different due to the fact that the outer diameters of the winding drums 21 are different, and the prefabricated part 3 is inclined in the lifting process and the lifting equipment is damaged is avoided.

Specifically, as shown in fig. 3, the transmission shafts on the winding drums 21 of at least two adjacent winding mechanisms 2 on the traveling frame 1 are connected and fixed through the coupling 4. At least one of the winding drums 21 is connected with a driving device 23, and the winding drum 21 connected with the driving device 23 drives the other winding drums 21 to synchronously rotate around the axis. The hoisting mechanisms 2 on the traveling frame 1 are connected into an integrated structure by the above structural design. Meanwhile, the arrangement of the driving devices 23 is reduced, only one driving device 23 can drive the hoisting mechanism 2 to work, and of course, a plurality of driving devices 23 can be arranged to improve the driving force of the hoisting mechanism and increase the hoisting and demolding efficiency. Under the control of the driving device 23, the winding drum 21 on each hoisting mechanism 2 rotates, and along with the rotation of the winding drum 21, the traction mechanism 22 drives the gripping mechanism 25 to perform lifting motion, and simultaneously, each gripping mechanism 25 is ensured to perform synchronous lifting, the lifting stability of the prefabricated part 3 is ensured, and the problem that the prefabricated part 3 inclines is avoided. Furthermore, the individual drives 23 can be electrically connected to a common control switch, which can control all drives 23 in such a way that they control all hoisting mechanisms 2 to operate synchronously. The axes of the transmission shafts are all on the same horizontal line, so that the rotating efficiency of the winding drums 21 is equal, and the situation that the hoisting points are inconsistent in the hoisting process is reduced.

As shown in fig. 2, in the present embodiment, the cross beam 11 on the traveling frame 1 is entirely plate-shaped or frame-shaped, and if the cross beam is plate-shaped, the middle portion of the cross beam 11 penetrates in the vertical direction, and the main purpose of the cross beam is to ensure that the traction mechanism 22 can smoothly pass through the cross beam 11 to drive the gripping mechanism 25 to perform an elevating motion, so as to control the gripping mechanism 25 to smoothly grip the point to be lifted on the prefabricated part 3. Due to the above-mentioned structure, the traction mechanism 22 can reduce the wear on the traction mechanism 22 when passing through the cross beam 11 to control the gripping mechanism 25 to lift the prefabricated part 3, and if the prefabricated part 3 is lifted under the condition that the traction mechanism 22 is in contact with the cross beam 11, the abrasion on the traction mechanism 22 and the cross beam 11 is serious after a period of time, and the breakage of the traction mechanism 22 is serious, so that a great safety problem and loss are caused.

According to the structure, the automatic identification sensor is arranged on the gripping mechanism 25, and the marker for the automatic identification sensor to identify is arranged on the point to be hung. Like structural design for when grabbing the clamp mechanism 25 and grabbing the clamp to waiting on prefabricated component 3 the hoisting point, can go to the automation through the automatic identification inductor and seek the position of waiting to the hoisting point, carry out operation on next step afterwards, thereby reduced artificial operation, make lifting by crane of prefabricated component 3 laborsaving convenient more. The automatic identification sensor arranged on the gripping mechanism 25 is an infrared identification sensor or a magnetic identification sensor, and similarly, the marker arranged on the point to be lifted is also adjusted, and can be a substance for infrared scanning or some metal substances for magnetic sensor identification. Of course, the automatic recognition sensor provided on the gripping mechanism 25 and the marker provided on the point to be lifted for recognition by the automatic recognition sensor are not limited to the above-described structures.

Various other modifications and changes may be made by those skilled in the art based on the above-described technical solutions and concepts, and all such modifications and changes are intended to fall within the scope of the claims.

Claims

1. A hoisting device for lifting prefabricated parts, characterized in that it comprises: the device comprises a walking type frame (1) and more than three hoisting mechanisms (2) which are arranged on the walking type frame (1) at intervals along a linear direction, wherein the distance L1 between the two hoisting mechanisms (2) at the two ends is larger than or equal to the length value L2 of the prefabricated part (3), and the arrangement direction of the hoisting mechanisms (2) is approximately parallel to the length direction of the prefabricated part (3).

2. The lifting apparatus for lifting prefabricated units according to claim 1, characterized in that said travelling frame (1) comprises: the device comprises a cross beam (11) and supporting legs (12), wherein the bottom of each supporting leg (12) is provided with a walking mechanism (121).

3. The hoisting apparatus for lifting prefabricated units according to claim 1, wherein said hoisting mechanism (2) comprises: the device comprises a winding drum (21), a traction mechanism (22), a driving device (23) and a grabbing and clamping mechanism (25), wherein a driving shaft of the driving device (23) is in transmission connection with the winding drum (21), and the driving device (23) can drive the winding drum (21) to rotate around an axis; one end of the traction mechanism (22) is wound on the outer wall of the winding drum (21), the other end of the traction mechanism is fixedly connected with the gripping and clamping mechanism (25), the traction mechanism (22) stretches along with the rotation of the winding drum (21) to control the gripping and clamping mechanism (25) to lift, and a part of the gripping and clamping mechanisms (25) clamp points to be hung on the prefabricated part (3);

preferably, a brake (24) is arranged at the transmission connection position of a driving shaft of the driving device (23) and the winding drum (21);

preferably, the traction mechanism (22) comprises a rope or a chain, the gripping mechanism (25) comprises a claw, a hook or a clamping jaw, and the driving device (23) comprises a driving motor or a driving oil cylinder.

4. The hoisting equipment for lifting the prefabricated parts according to the claim 3, wherein the two ends of the winding drum (21) extend outwards to form transmission shafts, the transmission shaft at least one end of the winding drum is in transmission connection with the driving shaft of the driving device (23), and the driving device (23) is electrically connected with a control switch;

preferably, the outer diameters of the winding drums (21) of the winding mechanisms (2) are the same.

5. The hoisting equipment for lifting the prefabricated parts according to the claim 3 is characterized in that transmission shafts on the winding drums (21) of at least two adjacent hoisting mechanisms (2) are fixedly connected through a coupling (4), at least one winding drum (21) is connected with the driving device (23), and the winding drum (21) connected with the driving device (23) drives the other winding drums (21) to synchronously rotate around the axis;

preferably, the axes of the transmission shafts are at substantially the same horizontal height.

6. The hoisting equipment for lifting the prefabricated part according to the claim 2 is characterized in that the cross beam (11) is of a plate-shaped or frame-shaped structure, the middle part of the cross beam (11) penetrates through the cross beam (11) in the vertical direction, and the traction mechanism (22) penetrates through the cross beam (11) to drive the gripping mechanism (25) to lift.

7. The hoisting equipment for lifting prefabricated parts according to the claim 3, characterized in that the gripping and clamping mechanism (25) is provided with an automatic identification sensor, and the point to be lifted is provided with a marker for the automatic identification sensor to identify.

8. The hoisting equipment for lifting prefabricated parts according to claim 7, wherein the automatic identification inductor is an infrared identification inductor or a magnetic identification inductor.

9. The hoisting equipment for hoisting prefabricated parts according to the claim 3 is characterized in that the prefabricated parts (3) are provided with detachable tension pieces (32) at both ends, the distance L3 between the end surfaces of the overhanging ends of the two tension pieces (32) is larger than or equal to the distance L4 between the gripping and clamping mechanisms (25) of the two hoisting mechanisms (2) at the two ends, and the length value L2 of the prefabricated parts (3) is smaller than or equal to L4;

preferably, an embedded part (31) is further arranged on the prefabricated part (3), and the tensioning part (32) and/or the embedded part (31) are/is used as the point to be lifted.

10. The hoisting apparatus for lifting prefabricated parts according to claim 9, wherein the embedded part (31) may be a hanging ring, a hook or an embedded nut.