CN110902549A - Self-balancing tool system and PC component hoisting method applying same - Google Patents
Self-balancing tool system and PC component hoisting method applying same Download PDFInfo
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- CN110902549A CN110902549A CN201911334830.7A CN201911334830A CN110902549A CN 110902549 A CN110902549 A CN 110902549A CN 201911334830 A CN201911334830 A CN 201911334830A CN 110902549 A CN110902549 A CN 110902549A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C1/00—Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith for transmitting lifting forces to articles or groups of articles
- B66C1/10—Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith for transmitting lifting forces to articles or groups of articles by mechanical means
- B66C1/12—Slings comprising chains, wires, ropes, or bands; Nets
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G21/00—Preparing, conveying, or working-up building materials or building elements in situ; Other devices or measures for constructional work
- E04G21/14—Conveying or assembling building elements
- E04G21/16—Tools or apparatus
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Abstract
The invention belongs to the technical field of building hoisting, and particularly relates to a self-balancing tool system and a PC component hoisting method using the same. The self-balancing tooling system comprises a main longitudinal hanging beam, a main suspension rope, a main pulley, a secondary transverse hanging beam, a secondary suspension rope, a secondary pulley and secondary suspension chains, wherein chain bodies of the two groups of secondary suspension chains are fixedly connected with each other through transverse hanging rods, and the transverse hanging rods are sequentially and uniformly distributed along the vertical direction; two groups of bottom layer chains are uniformly arranged on each group of transverse hanging rods. Self-balancing frock system possesses that construction cycle is short and efficient, and security and commonality are strong, and convenient and fast's advantage is maintained in the maintenance, can satisfy prefabricated superimposed sheet's high efficiency hoist and mount operation demand. The invention also aims to provide a PC component hoisting method applying the self-balancing tool system, which comprises a construction preparation stage and a hoisting stage, and is used for realizing the hoisting process of the prefabricated composite slab.
Description
Technical Field
The invention belongs to the technical field of building hoisting, and particularly relates to a self-balancing tool system and a PC component hoisting method using the same.
Background
The prefabricated components used for the fabricated building are mainly divided into vertical components and horizontal components, and the horizontal components are mainly prefabricated laminated slabs; normally, the up-and-down transportation of the prefabricated parts in the hoisting work takes up to 80% of the time. In order to save time, the prefabricated composite slabs are basically directly installed on site after goods arrive, construction roads are easy to block in the installation process, the situation that on-site plane construction is not smooth is caused, the construction time is long, and the construction progress is seriously influenced; therefore, how to effectively shorten the hoisting time of the prefabricated composite slab becomes a difficult problem to be solved.
Aiming at the problems, most of hoisting tools used in the installation process of the prefabricated composite slab of the domestic assembly type building at present are assembled by steel wire ropes, main hoisting beams, combined chains and U-shaped shackles so as to form a single-layer suspension structure. When the hoisting construction operation is carried out, the steel wire rope is connected with the tower crane lifting hook, four small hooks of the chain are hung at the stress point positions of the four corners of the prefabricated laminated slab respectively, and then the prefabricated laminated slab is vertically transported to a construction floor from a transport vehicle through a command tower crane and then installed. After the installation is completed and the position is adjusted, hoisting of the next prefabricated composite slab is carried out again, and the operation is repeated until hoisting of all prefabricated composite slabs is completed. The disadvantages of the prior art are as follows: firstly, the hoisting construction efficiency is low. The existing hoisting technology is single-component hoisting, only one prefabricated composite slab can be hoisted at one time, construction is slow, and labor and time are wasted. Secondly, the prefabricated part is easy to damage during hoisting. In the prior art, four balanced stress points can not be accurately found due to a single-layer suspension structure during construction and hoisting. In the hoisting process, the condition that only three points are stressed often exists, the component is inclined, the tensile stress of the concrete contact surface of the lifting hook and the prefabricated composite slab can be increased, and the problems of cracking and damage of the concrete surface are caused. Thirdly, the security is low. Because the stress balance point cannot be found, the swing amplitude is large during hoisting, the operation difficulty of a hoisting driver is increased, and the danger coefficient of ground personnel is increased. Fourthly, the operation is complex, the length of the chain needs to be adjusted according to actual conditions before the prefabricated laminated slab is hoisted every time, so that the balance of hoisting the component is achieved, and the steps are extremely complex. Fifthly, the field road jam is easily caused during hoisting. In order to save time, the prefabricated composite slabs are basically directly installed and constructed on site by goods, and due to the slow hoisting construction, a transport vehicle stays on site for a long time, so that the road passing on the construction site is influenced, and a lot of troubles are brought to the normal construction on site.
Disclosure of Invention
One of the purposes of the invention is to overcome the defects of the prior art, and provide a self-balancing tooling system with a reasonable and practical structure, which has the advantages of short construction period, high efficiency, strong safety and universality, and convenient and quick maintenance, and can meet the high-efficiency hoisting operation requirement of the prefabricated laminated slab. The invention also aims to provide a PC component hoisting method applying the self-balancing tool system, which is used for realizing the hoisting process of the prefabricated composite slab.
In order to achieve the purpose, the invention adopts the following technical scheme:
a self-balancing tool system comprises a main longitudinal hanging beam, a main suspension rope extends along the length direction of the main longitudinal hanging beam, two ends of the main suspension rope are fixed at two ends of the main longitudinal hanging beam, the middle section of the main suspension rope is matched with a pulley of a main pulley, and the main pulley is fixed on a tower crane hook; the method is characterized in that: the tool system also comprises a secondary transverse hanging beam, wherein the secondary suspension rope extends along the length direction of the secondary transverse hanging beam, two ends of the secondary suspension rope are fixed at two ends of the secondary transverse hanging beam, the middle section of the secondary suspension rope is matched with a pulley of a secondary pulley, and the secondary pulley is fixed on the main longitudinal hanging beam; a group of secondary transverse hanging beams, secondary hanging ropes and secondary pulleys which are matched with each other are taken as a group of secondary hanging components, and the secondary hanging components are taken as two groups and are symmetrically distributed at two ends of the main longitudinal hanging beam; the secondary suspension assembly also comprises two groups of secondary suspension chains symmetrically arranged at two ends of the same group of secondary transverse suspension beams, the two groups of secondary suspension chains naturally droop under the gravity, chain bodies of the two groups of secondary suspension chains are fixedly connected with each other through transverse suspension rods, all the transverse suspension rods are uniformly distributed in sequence along the vertical direction, and a working space for suspending the prefabricated laminated slab is reserved between two adjacent groups of transverse suspension rods in the vertical direction; two groups of bottom layer chains are uniformly distributed on each group of transverse hanging rods and are respectively arranged at two ends of the rod body of each transverse hanging rod, and the bottom ends of the bottom layer chains are respectively in fixedly connected fit with corresponding anchor points of the upper plate surfaces of the prefabricated composite plates.
The main pulley and the secondary pulley are both single-wheel open pulleys; the main longitudinal hanging beam is provided with main hanging holes which are arranged in a penetrating way in parallel with the length direction of the secondary transverse hanging chain beam, the main hanging holes are uniformly distributed along the length direction of the main longitudinal hanging beam in sequence, and the secondary hanging hooks of the secondary pulley are hooked in the corresponding main hanging holes.
The secondary transverse hanging beam is parallel to the length direction of the main longitudinal hanging chain beam and penetrates through the secondary hanging holes, the secondary hanging holes are uniformly distributed along the length direction of the corresponding secondary transverse hanging beam in sequence, and the top end of the secondary hanging chain is matched with the corresponding secondary hanging holes in the position of the secondary transverse hanging beam through a U-shaped shackle.
Each suspension rope is a steel wire rope, and two ends of each suspension rope are fixed on a preset lifting lug at the top end face of the corresponding suspension beam through U-shaped shackles.
The transverse suspension rod is an axially telescopic rod, transverse suspension rings are uniformly arranged at two ends of the transverse suspension rod, and the transverse suspension rings are arranged on chain rings of the secondary suspension chain in a closed loop mode.
The transverse suspender comprises a left adjusting cylinder, a middle adjusting rod and a right adjusting cylinder, the separated ends of the left adjusting cylinder and the right adjusting cylinder are fixedly connected with the transverse hanging ring, and adjacent end cylinder openings of the left adjusting cylinder and the right adjusting cylinder form an insertion opening into which the middle adjusting rod can be axially inserted; the middle adjusting rod is provided with positioning holes in a radial penetrating manner, the positioning holes are uniformly distributed along the axial direction of the middle adjusting rod in sequence, the left adjusting cylinder and the right adjusting cylinder are correspondingly provided with matching holes in a penetrating manner, and the radial positioning pins are in positioning fit with the corresponding matching holes and the positioning holes.
The top end of the bottom layer chain is fixedly connected with a sliding ring, and a hole shaft is formed between the transverse suspender and the sliding ring in a splicing fit; the anchor point is the lattice reinforcing bar, and bottom chain bottom hooks are on corresponding anchor point.
The PC component hoisting method using the self-balancing tooling system as claimed in claim 1 is characterized by comprising the following steps:
1) and a construction preparation stage
The connection assembly of the tower crane hook, the main longitudinal hanging beam and the secondary transverse hanging beam is completed firstly through the assembly of each suspension rope and the pulley; then, sequentially assembling a secondary hanging chain, a transverse hanging rod and a bottom chain on the secondary transverse hanging beam; the distance between two groups of secondary hanging chains on the secondary hanging assemblies in the same group is greater than or equal to the maximum width of the prefabricated composite slab to be hung;
2) and hoisting stage
During hoisting, sliding the bottom layer chains to a specified position along the transverse suspender shaft body, connecting the bottom ends of the bottom layer chains with the anchor points of the prefabricated laminated slab, and starting to vertically hoist the prefabricated laminated slab on the current layer after checking that the prefabricated laminated slab is correct; according to the actual condition of construction, wait that the prefabricated superimposed sheet on current layer lifts by crane to the assigned height after, suspend the prefabricated superimposed sheet of one deck in midair below the prefabricated superimposed sheet on current layer rethread second floor horizontal jib and bottom chain to analogize to this, can once hoist the prefabricated superimposed sheet more than two.
The invention has the beneficial effects that:
1) according to the scheme, the double-layer suspension system formed by the secondary transverse hanging beam, the secondary suspension rope and the secondary pulley is additionally arranged on the basis of the single-layer suspension system formed by the conventional main longitudinal hanging beam, the conventional main suspension rope and the conventional main pulley, and the self-balancing function of the whole device is realized by using the pulleys. On one hand, when the system is hoisted, the balance point can be automatically found out simultaneously when the whole system is in a loaded state, no matter the system is vertical or horizontal. This not only makes work efficiency higher, also makes the slope phenomenon that prefabricated superimposed sheet can not appear when the hoist and mount operation simultaneously, has increased the security of operation, has eliminated the destruction of hoist and mount stress to prefabricated superimposed sheet, has improved construction quality. On the other hand, the whole mechanism adopts a lifting ring lifting hook form in a large number, is convenient to install and disassemble, universal parts of standard parts are selected for connecting accessories, maintenance is convenient, online quick targeted adjustment can be realized for prefabricated composite slabs of different sizes, and applicability is strong.
On the basis of the above structure, it is worth explaining that: the invention is also provided with a three-dimensional hoisting system formed by a transverse hoisting rod, a secondary hoisting chain and a bottom chain. During actual operation, all transverse suspension rods are uniformly distributed along the vertical direction in sequence, so that a working space for suspending the prefabricated laminated slab is formed between the transverse suspension rods. Therefore, synchronous hoisting operation of a plurality of groups of prefabricated laminated slabs with the same size or even different sizes can be sequentially realized, and the working efficiency is improved to corresponding multiples; meanwhile, due to the arrangement of the working space, even if the rollover phenomenon of a single prefabricated laminated slab occurs, the transverse suspender on the lower layer also ensures that the prefabricated laminated slab on the upper layer cannot be directly knocked down, the safety is extremely high, a series of potential safety hazards caused by the fact that the prefabricated laminated slab slants and falls are reduced or even directly avoided, and the effect is remarkable.
2) The secondary pulley adopts a single-wheel opening pulley structure consistent with the main pulley, so that the corresponding fixed rope can be fast clamped into a pulley wheel groove through a side opening of the corresponding pulley. The arrangement of the main lifting holes and the secondary lifting holes realizes the function of online adjustment according to the field condition, thereby ensuring the effect of adjusting the distance between the two groups of secondary transverse lifting beams and the two groups of secondary suspension assemblies. The fixed rope is a steel wire rope, so that the reliability and stability of the whole structure are ensured.
3) And the transverse suspension rod has the function of forming a rectangular suspension system together with the secondary suspension chain and the secondary transverse suspension beam, so that the multi-layer suspension function of the prefabricated composite slab below is realized through the integrated structure of the three components. The transverse suspender is an axially telescopic rod, so that the transverse suspender can be flexibly changed adaptively according to the maximum width of the prefabricated composite slab to be hoisted. In practical operation, the telescopic mode can be a threaded screw rod structure, and even hydraulic cylinder telescopic mode can be adopted. The invention preferably adopts a mode of inserting the adjusting cylinder and the radial positioning pin of the adjusting rod, so as to further improve the simplicity and the cost performance of the structure while ensuring the length adjustability of the adjusting cylinder.
4) And further, the setting of sliding ring can realize treating the pertinence regulatory function of the prefabricated superimposed sheet of hoist and mount relatively to a certain extent to the unnecessary cooperation state of the corresponding coaster of regulation and corresponding lewis hole that all takes a lot of the chapter at every turn, with the simple operation degree of further promotion frock system. The face can expose in view of prefabricated superimposed sheet and have the lattice reinforcing bar, therefore the anchor point can directly choose for use the lattice reinforcing bar, and the couple that passes through bottom chain department during actual operation is in addition to hook and close can.
Drawings
FIG. 1 is a schematic view of the working state of the present invention;
FIG. 2 is a front view of the working state of the present invention;
FIG. 3 is a right side view of the operational state of the present invention;
FIG. 4 is a schematic perspective view of the present invention;
FIG. 5 is a schematic view of the main longitudinal beam, the main suspension rope and the main pulley;
FIG. 6 is a schematic view showing the engagement of the secondary cross-beam, the secondary suspension rope, and the secondary pulley;
FIG. 7 is a view showing the engagement of the transverse boom with the bottom chain;
FIG. 8 is a front view of the center adjustment lever;
fig. 9 is a front view of the right adjustment barrel.
The actual correspondence between each label and the part name of the invention is as follows:
a-prefabricated laminated slab
11-main longitudinal hanging beam 11 a-main hanging hole 12-main suspension rope 13-main pulley
21-secondary transverse hanging beam 21 a-secondary hanging hole 22-secondary suspension rope 23-secondary pulley
31-Secondary Sling chain 32-transverse boom
32 a-transverse lifting ring 32 b-left adjusting cylinder 32 c-middle adjusting rod 32 d-right adjusting cylinder
32 e-mating hole 32 f-positioning hole 32 g-radial positioning pin
33-bottom layer chain 33 a-slip ring
Detailed Description
For ease of understanding, the specific construction and operation of the invention is further described herein with reference to the accompanying figures 1-9:
the specific structure of the invention is shown in fig. 1-4, and the main structure comprises a main pulley 13, a main suspension rope 12, a main longitudinal suspension beam 11, a secondary pulley 23, a secondary suspension rope 22, a secondary transverse suspension beam 21, a secondary suspension chain 31, a transverse suspension rod 32 and a bottom chain 33. Taking the embodiment shown in fig. 1-4 as an example, the main block 13, the main suspension rope 12 and the main longitudinal suspension beam 11 are all one set, the secondary block 23, the secondary suspension rope 22 and the secondary transverse suspension beam 21 are two sets respectively, the secondary suspension chains 31 are four sets, the transverse suspension rods 32 are six sets, and the bottom layer chains 33 are twelve sets. Wherein:
the main longitudinal hanging beam 11 is composed of HW steel, a hanging hole plate, two hanging lugs, eight reinforcing plates and two end plates, and is specifically shown in fig. 5. The secondary cross beam 21 is composed of HW steel, a hole plate, two lifting lugs, six reinforcing plates and two end plates, and is shown in detail in fig. 6.
The transverse boom 32 is divided into two end adjusting cylinders and a middle adjusting rod 32c, i.e. as shown in fig. 7-9, it is composed of a left adjusting cylinder 32b, a middle adjusting rod 32c and a right adjusting cylinder 32 d. The size of the two-end adjusting cylinder is a steel pipe with the length of 600mm and the diameter of 48mm, the separated ends of the left adjusting cylinder 32b and the right adjusting cylinder 32d are welded and fixed with an M22 connecting sleeve, the M22 connecting sleeve is connected with the transverse hanging ring 32a after being fixed, and the adjacent ends of the left adjusting cylinder 32b and the right adjusting cylinder 32d are provided with a matching hole 32e with the diameter of 6. The middle adjusting rod 32c is a steel pipe with the length of 1500mm and the diameter of 40mm, and positioning holes 32f with the length of phi 6 are formed at intervals of 100 mm. After the middle adjusting rod 32c is inserted into the left adjusting cylinder 32b and the right adjusting cylinder 32d, a radial positioning pin 32g consisting of M5 bolt rods is used for insertion and fixation; and may even be used with a washer and nut as shown in figure 7 to assist in limiting if necessary. Each set of transverse hanger bars 32 is matched with two sets of bottom chains 33 as shown in fig. 7, and the effective engagement of the transverse hanger bars 32 with the prefabricated composite slab is further ensured by the bottom chains 33 when in use.
When the pulley is used on site, the main pulley 13 or the secondary pulley 23 can be considered to be a single-wheel opening pulley. A set of main coaster 13 links to each other with the tower crane lifting hook through the top lifting hook, and two sets of secondary coasters 23 then through top lifting hook with main hanging hole 11a of main longitudinal beam 11 department hook. In the embodiment shown in fig. 1-2, the primary suspension ropes 12 and the secondary suspension ropes 22 are steel wire ropes with a diameter of 24mm, and both ends of the steel wire ropes are connected with the lifting lugs of the corresponding beam bodies.
The secondary suspension chain 31 is a chain structure having a U-shaped shackle at one end and a hook at one end. After the secondary suspension chain 31 is hooked on the secondary suspension hole 21a by the U-shaped shackle, the bottom end hook is used for hooking the transverse suspension rings 32a at both ends of the transverse suspension rod 32 at the lowest layer.
In actual operation, a group of main longitudinal suspension beams 11 are matched with the tower crane hook through a main pulley 13 and a main suspension rope 12 to form transverse balance. The two groups of secondary transverse hanging beams 21 are connected with the secondary suspension ropes 22 through U-shaped shackles, and finally the purpose of assembling with the secondary pulley 23 is achieved; the secondary pulley 23 is matched with the main hoisting hole 11a of the main longitudinal hoisting beam 11; meanwhile, the secondary suspension chain 31 is matched with the transverse suspension rod 32 and the bottom-layer chain 33; together forming a lateral auto-balance. The two ends of the two secondary transverse hanging beams 21 can be matched with two secondary hanging chains 31 with the length of 500mm, 2000mm and 3500mm respectively, and the two secondary hanging chains can be used as appropriate according to the type of the prefabricated composite slab to be hung currently.
To facilitate a further understanding of the present invention, a specific workflow of the present invention is given herein as follows:
1) and a construction preparation stage
The connection assembly of the tower crane hook, the main longitudinal hanging beam 11 and the secondary transverse hanging beam 21 is completed firstly through the assembly of each suspension rope and the pulley; then, the secondary suspension chain 31, the transverse suspension rod 32 and the bottom layer chain 33 are sequentially assembled on the secondary transverse suspension beam 21; the distance between two groups of secondary hanging chains 31 on the secondary hanging assemblies in the same group is greater than or equal to the maximum width of the prefabricated composite slab a to be hung; the specific structural state of the present invention at this time is shown with reference to fig. 4.
2) And hoisting stage
During hoisting, the bottom layer chains 33 slide to a specified position along the shaft body of the transverse suspender 32 through the slip ring 33a, then the bottom ends of the bottom layer chains 33 are connected with the anchor points of the prefabricated laminated slabs a, and after no error is detected, the prefabricated laminated slabs a on the current layer are vertically hoisted; according to the actual construction situation, after the prefabricated composite slab a on the current layer is lifted to a specified height, the next layer of prefabricated composite slab a is suspended below the prefabricated composite slab a on the current layer through the second layer of transverse suspender 32 and the bottom layer of chain 33, and by analogy, more than two prefabricated composite slabs a can be hoisted at one time; the detailed structural state of the present invention at this time is shown with reference to fig. 1 to 3.
In summary, under the specific embodiment shown in fig. 1-4, the invention can hoist 3 to 5 prefabricated composite slabs a simultaneously according to the actual construction situation, and has the effect of automatic balance between the longitudinal direction and the transverse direction; certainly, during actual operation, more prefabricated superimposed sheet a of polylith can be hoisted at optional time to both having shortened construction period, having improved the unobstructed of site road construction, avoided the hoist and mount operation to prefabricated component's destruction again, ensure construction quality, kill many birds with one stone.
Of course, the above is one specific embodiment of the present invention. In actual operation, the matching mode of the main pulley 13 and the secondary pulley 23 is replaced by the same mode, such as directly adopting a guide rail positioning mechanism, or adopting a mode of welding between the pulleys and corresponding hanging beams; and the conventional structural changes that the suspension rope is made of other materials, even the transverse suspender 32 is made of a pneumatic telescopic rod, etc., are considered as equivalent or similar designs and fall into the protection scope of the invention.
Claims (8)
1. A self-balancing tool system comprises a main longitudinal hanging beam (11), a main suspension rope (12) extends along the beam length direction of the main longitudinal hanging beam (11), two ends of the main suspension rope (12) are fixed at two ends of the main longitudinal hanging beam (11), the middle section of the main suspension rope (12) is matched on a pulley of a main pulley (13), and the main pulley (13) is fixed on a tower crane hook; the method is characterized in that: the tooling system also comprises a secondary transverse hanging beam (21), wherein a secondary suspension rope (22) extends along the beam length direction of the secondary transverse hanging beam (21), two ends of the secondary suspension rope (22) are fixed at two ends of the secondary transverse hanging beam (21), the middle section of the secondary suspension rope (22) is matched with a pulley of a secondary pulley (23), and the secondary pulley (23) is fixed on the main longitudinal hanging beam (11); a group of secondary transverse hanging beams (21), secondary hanging ropes (22) and secondary pulleys (23) which are matched with each other are taken as a group of secondary hanging components, and the secondary hanging components are divided into two groups and are symmetrically distributed at two ends of the main longitudinal hanging beam (11); the secondary suspension assembly further comprises two groups of secondary suspension chains (31) which are symmetrically arranged at two ends of the same group of secondary transverse suspension beams (21), the two groups of secondary suspension chains (31) naturally droop under the gravity, chain bodies of the two groups of secondary suspension chains (31) are fixedly connected with each other through transverse suspension rods (32), all the transverse suspension rods (32) are uniformly distributed in sequence along the vertical direction, and a working space for suspending prefabricated laminated plates is reserved between every two adjacent groups of transverse suspension rods (32) on the vertical direction; two groups of bottom layer chains (33) are uniformly distributed on each group of transverse suspender (32), the two groups of bottom layer chains (33) are respectively arranged at two ends of the rod body of the transverse suspender (32), and the bottom ends of the bottom layer chains (33) are respectively in fixedly connected fit with corresponding anchor points of the upper plate surface of the prefabricated composite slab.
2. The self-balancing tooling system of claim 1, wherein: the main pulley (13) and the secondary pulley (23) are both single-wheel open pulleys; the main longitudinal hanging beam (11) is parallel to the length direction of the secondary transverse hanging chain beam and is provided with main hanging holes (11a) in a penetrating mode, all the main hanging holes (11a) are evenly distributed along the length direction of the main longitudinal hanging beam (11) in sequence, and secondary hanging hooks of the secondary pulley (23) are hooked in the corresponding main hanging holes (11 a).
3. The self-balancing tooling system of claim 1, wherein: the secondary transverse hanging beam (21) is parallel to the length direction of the main longitudinal hanging chain beam and is provided with secondary hanging holes (21a) in a penetrating mode, the secondary hanging holes (21a) are evenly distributed along the length direction of the corresponding secondary transverse hanging beam (21) in sequence, and the top end of the secondary hanging chain (31) is matched with the corresponding secondary hanging holes (21a) at the position of the secondary transverse hanging beam (21) through U-shaped shackles.
4. The self-balancing tooling system of claim 1, wherein: each suspension rope is a steel wire rope, and two ends of each suspension rope are fixed on a preset lifting lug at the top end face of the corresponding suspension beam through U-shaped shackles.
5. The self-balancing tooling system of claim 1, 2, 3 or 4, wherein: the transverse suspension rod (32) is an axial telescopic rod, transverse suspension rings (32a) are arranged at two ends of the transverse suspension rod (32), and the transverse suspension rings (32a) are arranged on chain rings of the secondary suspension chain (31) in a closed-loop mode in a penetrating mode.
6. The self-balancing tooling system of claim 5, wherein: the transverse suspender (32) comprises a left adjusting cylinder (32b), a middle adjusting rod (32c) and a right adjusting cylinder (32d), the separated ends of the left adjusting cylinder (32b) and the right adjusting cylinder (32d) are fixedly connected with the transverse hoisting rings (32a), and adjacent end cylinder openings of the left adjusting cylinder (32b) and the right adjusting cylinder (32d) form an insertion opening into which the middle adjusting rod (32c) can be axially inserted; the middle adjusting rod (32c) is provided with positioning holes (32f) in a radial penetrating manner, the positioning holes (32f) are uniformly distributed along the axial direction of the middle adjusting rod (32c) in sequence, the left adjusting cylinder (32b) and the right adjusting cylinder (32d) are correspondingly provided with matching holes (32e) in a penetrating manner, and the radial positioning pins (32g) are matched with the corresponding matching holes (32e) and the positioning holes (32f) in a pin shaft positioning manner.
7. The self-balancing tooling system of claim 1, 2, 3 or 4, wherein: the top end of the bottom layer chain (33) is fixedly connected with a sliding ring (33a), and a hole shaft is formed between the transverse suspender (32) and the sliding ring (33a) in a splicing fit; the anchor points are latticed steel bars, and the bottom ends of the bottom-layer chains (33) are hooked on the corresponding anchor points.
8. A PC component hoisting method applying the self-balancing tooling system as claimed in claim 1, 2, 3 or 4, characterized by comprising the following steps:
1) and a construction preparation stage
The connection assembly of the tower crane hook, the main longitudinal hanging beam (11) and the secondary transverse hanging beam (21) is completed firstly through the assembly of each suspension rope and the pulley; then, sequentially assembling a secondary suspension chain (31), a transverse suspension rod (32) and a bottom chain (33) on the secondary transverse suspension beam (21); the distance between two groups of secondary hanging chains (31) on the secondary hanging assemblies of the same group is larger than or equal to the maximum width of the prefabricated composite slab to be hung;
2) and hoisting stage
During hoisting, the bottom layer chains (33) slide to a designated position along the shaft body of the transverse suspender (32), then the bottom ends of the bottom layer chains (33) are connected with the anchor points of the prefabricated composite slab, and after the bottom layer chains are checked to be correct, the prefabricated composite slab on the current layer is vertically hoisted; according to the actual construction situation, after the prefabricated composite slab on the current layer is lifted to the specified height, the next layer of prefabricated composite slab is suspended below the prefabricated composite slab on the current layer through the second layer of transverse suspender (32) and the bottom layer chain (33), and by analogy, more than two prefabricated composite slabs can be hoisted at one time.
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| CN113353780A (en) * | 2021-06-22 | 2021-09-07 | 湖北航天技术研究院总体设计所 | Self-balancing lifting sling and crane |
| CN113697675A (en) * | 2021-08-27 | 2021-11-26 | 中国十七冶集团有限公司 | Construction method of building assembly type combined lifting appliance capable of being automatically finely adjusted |
| CN113846792A (en) * | 2021-09-23 | 2021-12-28 | 广东省洲际建工集团有限公司 | Workshop steel structure roof, hoisting device and hoisting method thereof |
| CN114263088A (en) * | 2021-12-30 | 2022-04-01 | 中国民航大学 | Special equipment for integrally replacing cement concrete runway and construction method |
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- 2019-12-23 CN CN201911334830.7A patent/CN110902549A/en active Pending
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113353784A (en) * | 2021-04-21 | 2021-09-07 | 中国化学工程第三建设有限公司 | Mechanically-assisted cantilever hoisting device and method |
| CN113353780A (en) * | 2021-06-22 | 2021-09-07 | 湖北航天技术研究院总体设计所 | Self-balancing lifting sling and crane |
| CN113697675A (en) * | 2021-08-27 | 2021-11-26 | 中国十七冶集团有限公司 | Construction method of building assembly type combined lifting appliance capable of being automatically finely adjusted |
| CN113846792A (en) * | 2021-09-23 | 2021-12-28 | 广东省洲际建工集团有限公司 | Workshop steel structure roof, hoisting device and hoisting method thereof |
| CN114263088A (en) * | 2021-12-30 | 2022-04-01 | 中国民航大学 | Special equipment for integrally replacing cement concrete runway and construction method |
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