CN210795485U

CN210795485U - Upper folding pipe bus lifting appliance

Info

Publication number: CN210795485U
Application number: CN201921511458.8U
Authority: CN
Inventors: 刘克毅; 余斌; 赵辉; 黄艳; 王梦; 陈江辉; 张佳; 陶彦辉; 董晓红
Original assignee: Xinjiang Institute of Engineering
Current assignee: Xinjiang Institute of Engineering
Priority date: 2019-09-11
Filing date: 2019-09-11
Publication date: 2020-06-19
Anticipated expiration: 2029-09-11

Abstract

The utility model discloses a female hoist of last folding tube, including colluding the portion of hanging, hoist crossbeam and a plurality of connection sucking disc, it sets up in hoist crossbeam middle part to collude the portion of hanging, be used for lifting by crane mechanical connection with the outside, the hoist crossbeam is including the meso position crossbeam that is located the middle part and the side position crossbeam that is located meso position crossbeam both sides, it connects in hoist crossbeam below to connect the sucking disc, be used for being connected with the female pipe that is lifted by crane, be connected through folding mechanism between meso position crossbeam and the side position crossbeam, folding mechanism is crank rocker mechanism, the expansion and the upper folding of side position crossbeam to meso position crossbeam are realized to the flexible of pneumatic cylinder, the hoist crossbeam carries out the preflex and handles, make the hoist crossbeam be ascending micro-arc type structure, initial prestressing force is provided, reduce the elastic deformation volume after the loading, the side position crossbeam sets up the. The utility model discloses be convenient for transport the installation, reduced area of use, improved space utilization, strengthened hoist suitability.

Description

Upper folding pipe bus lifting appliance

Technical Field

The utility model belongs to a large-span tubular busbar hoist device, concretely relates to can optimize the female hoist and mount process of pipe, easily accomodate, need not to dismantle the part, the female hoist of last folding pipe of convenient transportation.

Background

A6063G-T6-phi 250/230 type aluminum magnesium tubular bus is largely used in a Xinjiang quasi-north 750Kv substation project. The tubular bus is one of the key devices in the power transmission and transformation system, and plays an important role in the safe and reliable operation of the power transmission and transformation system and the power device. Compared with the common lead, the pipe bus has many excellent performances. For example, the surface is smooth, the tensile strength is high, the discharge is not easy to generate, and particularly, the convective heat dissipation performance and the electric conduction capability are very good. With the popularization of new energy in China, the development prospect of the tubular bus with low temperature rise, small loss, strong conductivity and large current-carrying capacity is wide. Large-area engineering installation projects are coming, and especially in western areas, wind power plants and solar power plants need a large amount of the pipe mother equipment.

The hoisting process of the tubular bus is optimized, the installation cost of the tubular bus is reduced, the use amount of equipment and personnel is reduced, the construction efficiency is improved, and the method is an effective way for promoting the rapid development of the tubular bus.

The difficulty of the existing hoisting construction is as follows: the span of the pipe bus is large (22m), the span of the needed lifting appliance beam is also large, and the requirement on stability is high. Therefore, the transportation of the spreader beam becomes a difficult point, the traditional method for transporting large objects generally comprises the steps of disassembling, transporting, assembling and using, which causes much inconvenience, in addition, the excessive deformation of the spreader beam can damage the normal work of the system, generate local stress, cause the deformation of the pipe nut, and is not beneficial to the adsorption of the spreader sucker.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problem that a female hoist of folding pipe can be gone up to the providing, easily accomodates, and the procedure of dismantling and assembling has been saved in convenient transportation, and is more convenient.

In order to solve the technical problem, the utility model provides a go up female hoist of folding tube, including colluding the portion of hanging, hoist crossbeam and a plurality of connection sucking disc, collude the portion of hanging and set up in hoist crossbeam middle part, be used for lifting by crane mechanical connection with the outside, the hoist crossbeam is including the meso position crossbeam that is located the middle part and the side position crossbeam that is located meso position crossbeam both sides, it connects in hoist crossbeam below to connect the sucking disc, be used for being connected with the female pipe that is lifted by crane, be connected through folding mechanism between meso position crossbeam and the side position crossbeam, folding mechanism is crank rocker mechanism, it is folding with last to the expansion of meso position crossbeam to the side position crossbeam to realize through the flexible of pneumatic cylinder, the hoist crossbeam carries out the preflex, make the hoist crossbeam be ascending micro-arc type structure, initial prestressing force is provided, reduce the elastic deformation volume after the loading, the side position crossbeam.

Furthermore, the spreader beam is a hollow tubular structure, preferably a square steel tube.

Further, the rib plate is arranged below the side cross beam, the rigidity of the side cross beam is increased in a mode that the rib plate is pressed, and preferably, the rib plate is designed in a mode that a straight rib is adopted, and the thickness of the rib plate is not more than half of the nominal wall thickness.

Further, folding mechanism is including the pneumatic cylinder, connecting rod and the revolute pair that provide power, and the revolute pair is including the main revolute pair of connecting meso position crossbeam and side position crossbeam, connecting side position crossbeam and connecting rod and the connecting rod revolute pair of connecting meso position crossbeam and connecting rod, still including the pneumatic cylinder revolute pair of connecting rod and pneumatic cylinder.

Furthermore, a base on one side of the main revolute pair is welded with the lateral position cross beam, a base on the other side of the main revolute pair is welded with the middle position cross beam, and the excircle of the main revolute pair is tangent.

Furthermore, the connecting rods comprise a main connecting rod connected with the middle cross beam and a side connecting rod connected with the side cross beam, and the side connecting rods are longer than the main connecting rod, so that the horizontal projection of the hydraulic cylinder rotating pair is deviated to one side of the middle cross beam.

Further, the folding mechanism is arranged on the upper side surface of the lifting appliance beam.

Furthermore, the folding mechanisms are arranged on the side surfaces of the two sides of the lifting appliance beam, the side surface of the base of the revolute pair is connected with the lifting appliance beam in a welding mode, and the side position beam is unfolded or folded towards the middle position beam through the stretching and the contracting of the hydraulic cylinder.

Furthermore, the hooking part is movably arranged in the middle of the cross beam of the lifting appliance, and a locking mechanism is arranged between the hooking part and the cross beam of the lifting appliance, so that the hooking part can slide left and right on the cross beam of the lifting appliance for adjustment or locking and positioning.

Compared with the prior art, the beneficial effects of the utility model reside in that: 1. the lifting appliance of the utility model sets the lifting appliance crossbeam into a three-section structure and sets the folding mechanism to enable the side position crossbeam to be folded upwards and to be folded with the middle position crossbeam, thereby being convenient for transferring and installing, reducing the use area, improving the space utilization rate and enhancing the applicability of the lifting appliance; compared with left and right folding, the upper folding structure mode has the advantages that the oil cylinders are arranged in a tensioned manner to fully exert the mechanical property, the beam is better stressed, the structure is more stable, and the rigidity is greatly enhanced; 2. the lifting appliance beam is pre-bent before use, initial prestress is provided, elastic deformation after loading is reduced, and rib plate welding deformation stability is achieved on the pre-arched beam, so that rebound is prevented.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without inventive effort.

Fig. 1 is a schematic structural diagram of a mother folding pipe hanger according to an embodiment of the present invention;

FIG. 2 is an enlarged schematic view of section A of FIG. 1;

FIG. 3 is a schematic view of the upper fold of FIG. 1;

the lifting device comprises a lifting part 1, a lifting appliance beam 2, a middle position beam 21, a side position beam 22, a connecting sucker 3, a folding mechanism 4, a hydraulic cylinder 41, a connecting rod 42, a main position connecting rod 421, a side position connecting rod 422, a rotating pair 43, a main rotating pair 431, a connecting rod rotating pair 432, a hydraulic cylinder rotating pair 433 and a locking mechanism 5.

Detailed Description

The following description will further describe embodiments of the present invention with reference to the accompanying drawings and examples. The following examples are only for illustrating the technical solutions of the present invention more clearly, and the protection scope of the present invention is not limited thereby.

As shown in fig. 1, 2 and 3, a female hoist of last folding tube, including colluding portion 1, hoist crossbeam 2 and a plurality of connection sucking disc 3, collude portion 1 and set up in hoist crossbeam 2 middle part, be used for lifting by crane mechanical connection with the outside, hoist crossbeam 2 is including the side position crossbeam 22 that lies in the meso position crossbeam 21 and lie in meso position crossbeam 21 both sides at middle part, it connects in hoist crossbeam 2 below to connect sucking disc 3, be used for with the female connection of the pipe that is lifted by crane, be connected through folding mechanism 4 between meso position crossbeam 21 and the side position crossbeam 22, folding mechanism 4 is crank rocker mechanism, the expansion and the upper folding of side position crossbeam 22 to meso position crossbeam 21 are realized through the flexible of pneumatic cylinder 41. The hooking part 1 is movably arranged in the middle of the hanger beam 2, and a clamping and locking mechanism 5 is arranged between the hooking part 1 and the hanger beam 2, so that the hooking part can slide left and right on the hanger beam for adjustment or clamping and locking and positioning.

The hanger beam 2 is pre-bent, so that the hanger beam 2 is of an upward micro-arc structure, initial prestress is provided, and elastic deformation after loading is reduced. The ribbed plates are welded on the pre-arched beam to stabilize the deformation capability and prevent rebound. Because the compressive strength of the material is obviously higher than the tensile strength, the supporting surface at the lower side of the beam is selected at the welding position of the ribbed plate. The pressure borne by the ribs replaces part of the direct bending force of the cross beam. Meanwhile, the structure performance is enhanced, and the rigidity is improved well. The rib plate design form adopts a straight rib, and the thickness of the rib plate does not exceed half of the nominal wall thickness.

The lifting appliance cross beam 2 is reasonably designed to be analyzed, and structures such as a truss structure, a circular tube structure, a square tube structure, H-shaped steel and I-shaped steel are preselected to be used as preselection design structures. The truss has good rigidity and large size, is not beneficial to folding work, the circular tube has poorer rigidity compared with the square tube, and the H-shaped steel and the I-shaped steel have larger weight, so that the materials cannot be fully utilized. The farther away the material is from the geometric center, the greater the bending stress will be applied, making the best use of and exerting the properties of the material. Higher stiffness can be achieved by replacing the flexural members with tensile compression members in the criteria of increased stiffness. When the member is bent and loaded, because most of the materials near the neutral layer of the member are not stressed, the material performance can not be fully utilized, the tension and compression load of the member is uniform, and the mechanical property of the material can be fully exerted. The hollow section geometry mainly comprises a round pipe, a square pipe and a polygonal pipe. The square tube is superior to the round tube in bending strength and rigidity, and the square steel tube is adopted in design.

The 11m of hoist crossbeam of this embodiment is long, is not convenient for remove and not convenient for load and unload, and the folding system of design is convenient for transport the installation, has reduced usable floor area and has improved space utilization, has strengthened hoist suitability. The folding mechanism 4 comprises a hydraulic cylinder 41 for providing power, a connecting rod 42 and a rotating pair 43, wherein the rotating pair 43 comprises a main rotating pair 431 for connecting the middle cross beam 21 and the side cross beam 22, a connecting rod rotating pair 432 for connecting the side cross beam 22 and the connecting rod 42 and connecting the middle cross beam 21 and the connecting rod 42, and further comprises a hydraulic cylinder rotating pair 433 for connecting the connecting rod 42 and the hydraulic cylinder 41. The base on one side of the main revolute pair 431 is welded with the lateral position cross beam 22, the base on the other side of the main revolute pair 431 is welded with the middle position cross beam 21, and the excircle of the main revolute pair 431 is tangent to avoid stress concentration. The link 42 includes a main position link 421 connected to the middle cross member 21 and a side position link 422 connected to the side cross member 22, and the side position link 422 is longer than the main position link 421 to deflect the horizontal projection of the hydraulic cylinder rotary pair 433 to the side of the middle cross member 21. The folding mechanism 4 is arranged on the upper side surface of the spreader beam 2.

The embodiment utilizes the mechanical principle knowledge and the characteristics of a hinge four-bar mechanism to realize the folding purpose, wherein a crank in the crank rocker mechanism is twice aligned with a rack, and the advantage is utilized to enable a connecting rod to be used as two limit positions for realizing the folding and unfolding of the crank and a lifting appliance beam, so that the folding effect is achieved. When the lifting appliance works, the side position cross beams and the middle position cross beam are arranged on the same vertical plane, and after the side position cross beams and the middle position cross beam are folded on the same horizontal plane to reach a certain extreme position, the two side position cross beams collide to form a triangle, so that the lifting appliance cannot be further folded, and the maximum folding effect is realized.

To solve this problem, a staggered fold may be provided. In the process that the side position cross beam rotates 180 degrees, the side position cross beam is enabled to change the position. And translating for a beam width distance, reserving a spare space of a fastener on one side opposite to the middle cross beam and a radius space of a rotary support bearing in the rotary mechanism, and integrally translating for 150 mm. The movement is complex system engineering, and involves the coordinated movement of all the rods, and the movement is a compound movement of spatial rotation and swinging.

The folding mechanisms 4 may be disposed on the side surfaces of both sides of the spreader beam 2, the side surfaces of the base of the revolute pair are welded to the spreader beam 2, and the side beams 22 are unfolded or folded toward the middle beam 21 by the expansion and contraction of the hydraulic cylinder 41. Make folding mechanism 4 not produce the hoist crossbeam and interfere, make side position crossbeam 22 and well position crossbeam 21 can be in the same place totally to overlapping together, can not produce stress concentration to hoist crossbeam 2, and then even there is jolting and can not destroy the excellent performance of hoist crossbeam 2 in the transportation.

The present invention is not limited to the embodiments discussed above. The foregoing description of the specific embodiments is intended to illustrate and describe the technical solutions of the present invention. Obvious modifications or alternatives based on the teachings of the invention should also be considered to fall within the scope of the invention. The above detailed description is provided to disclose the best mode of carrying out the invention, so that those skilled in the art can apply the invention in its various embodiments and in its various alternative ways to achieve the objects of the invention.

Claims

1. An upper folding pipe mother lifting appliance is characterized by comprising a lifting part, a lifting appliance cross beam and a plurality of connecting suckers, wherein the lifting part is arranged in the middle of the lifting appliance cross beam, the connecting sucker is connected with the lower part of the lifting appliance beam, the folding mechanism is a crank rocker mechanism, the middle cross beam is connected with the side cross beams through the folding mechanism, the expansion and the upward folding of the lateral position cross beam to the middle position cross beam are realized through the expansion and the contraction of a hydraulic cylinder, the lifting appliance beam is pre-bent, so that the lifting appliance beam is of an upward micro-arc structure, initial prestress is provided, elastic deformation after loading is reduced, and the side position beam is provided with a rib plate.

2. The upper folding tubular busbar hanger according to claim 1, wherein the hanger beam is a hollow tubular structure and is a square steel tube.

3. The upper folding pipe hanger as claimed in claim 1, wherein the rib plate is arranged below the side cross beams, the rigidity of the side cross beams is increased in a manner that the rib plate is pressed, the rib plate is designed to be a straight rib, and the thickness of the rib plate is not more than half of the nominal wall thickness.

4. The parent lifting appliance of an upper folding pipe, according to claim 1, characterized in that the folding mechanism comprises a hydraulic cylinder, a connecting rod and a revolute pair which provide power, the revolute pair comprises a main revolute pair which connects the middle cross beam and the side cross beam, a connecting rod revolute pair which connects the side cross beam and the connecting rod and connects the middle cross beam and the connecting rod, and a hydraulic cylinder revolute pair which connects the connecting rod and the hydraulic cylinder.

5. The upper folding pipe busbar hanger according to claim 4, wherein one side base of the main rotating pair is welded with the side cross beam, the other side base is welded with the middle cross beam, and the outer circle of the main rotating pair is tangent.

6. The upper folding pipe busbar hanger according to claim 4, wherein the connecting rods comprise a main position connecting rod connected with the middle cross beam and a side position connecting rod connected with the side position cross beam, and the side position connecting rod is longer than the main position connecting rod, so that the horizontal projection of the hydraulic cylinder rotating pair is deviated to one side of the middle cross beam.

7. The upper folding pipe mother hanger according to any one of claims 4 to 6, wherein the folding mechanism is arranged on the upper side surface of the hanger beam.

8. The upper folding pipe main hanger according to any one of claims 4 to 6, wherein the folding mechanism is arranged on the side surfaces of both sides of the hanger beam, the side surfaces of the base of the revolute pair are welded to the hanger beam, and the expansion or the upper folding of the side beam to the middle beam is realized by the expansion and contraction of the hydraulic cylinder.

9. The upper folding tubular busbar hanger according to claim 1, wherein the hooking part is movably arranged in the middle of the hanger beam, and a locking mechanism is arranged between the hooking part and the hanger beam to enable the hooking part to slide left and right on the hanger beam for adjustment or locking and positioning.