CN109678067B - A supplementary device of demolising for tower crane - Google Patents
A supplementary device of demolising for tower crane Download PDFInfo
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- CN109678067B CN109678067B CN201910082765.7A CN201910082765A CN109678067B CN 109678067 B CN109678067 B CN 109678067B CN 201910082765 A CN201910082765 A CN 201910082765A CN 109678067 B CN109678067 B CN 109678067B
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- Prior art keywords
- tower crane
- connecting rod
- tower
- connecting plate
- rod
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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
- B66C23/00—Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes
- B66C23/62—Constructional features or details
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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
- B66C23/00—Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes
- B66C23/06—Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes with jibs mounted for jibbing or luffing movements
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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
- B66C23/00—Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes
- B66C23/16—Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes with jibs supported by columns, e.g. towers having their lower end mounted for slewing movements
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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
- B66C23/00—Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes
- B66C23/62—Constructional features or details
- B66C23/64—Jibs
- B66C23/70—Jibs constructed of sections adapted to be assembled to form jibs or various lengths
- B66C23/701—Jibs constructed of sections adapted to be assembled to form jibs or various lengths telescopic
- B66C23/708—Jibs constructed of sections adapted to be assembled to form jibs or various lengths telescopic locking devices for telescopic jibs
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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
- B66C23/00—Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes
- B66C23/62—Constructional features or details
- B66C23/72—Counterweights or supports for balancing lifting couples
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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
- B66C23/00—Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes
- B66C23/62—Constructional features or details
- B66C23/82—Luffing gear
- B66C23/821—Bracing equipment for booms
- B66C23/826—Bracing equipment acting at an inclined angle to vertical and horizontal directions
- B66C23/828—Bracing equipment acting at an inclined angle to vertical and horizontal directions where the angle is adjustable
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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
- B66C23/00—Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes
- B66C23/62—Constructional features or details
- B66C23/84—Slewing gear
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Jib Cranes (AREA)
Abstract
The invention discloses an auxiliary dismantling device for a tower crane, wherein a tower body is formed by sequentially connecting and constructing a plurality of standard joints, one side of the tower body is provided with a balance arm, a winch is arranged on the balance arm, the other side of the tower body is provided with a tripod, a first connecting plate is arranged between two groups of lever arms, a hanging ring is fixedly arranged on the first connecting plate, the other end of the lever arm is connected with a swing mechanism through a hinge joint after the lever arm is dismantled, and a second pulley is arranged on the first connecting plate through a bearing. According to the invention, the triangular support is arranged on the swing mechanism, and the triangular support is matched with the original tower crane winch to disassemble the standard knot of the tower crane, so that the problem that the tower crane cannot be disassembled by itself when the space is insufficient is solved, and the cost input for disassembling the tower crane is greatly reduced; and after a group of standard knots is dismantled, ground constructor shifts, utilizes the tripod to continue dismantling of next group of standard knots simultaneously, has improved the efficiency that the tower crane was dismantled.
Description
Technical Field
The invention belongs to the technical field of building construction, and particularly relates to an auxiliary dismantling device for a tower crane.
Background
Building projects such as residential quarter and power plant construction often have insufficient available space due to land acquisition problems, for example, in power plant construction, a tower crane is assembled between buildings 1 (see fig. 1), and the tower crane cannot fall down and be dismantled automatically due to the interference between the arm rod 3 and the building 1 due to insufficient space after the building 1 is constructed; the conventional dismantling mode generally adopts a truck crane to dismantle, but the common truck crane cannot be close to the standard sections 6 of the tower body 2 due to the reasons of narrow roads, cable ducts, pipelines and the like, so that the dismantling difficulty of the tower crane is caused, if a large crane is used for dismantling, the dismantling cost is high, the construction cost of an enterprise is increased, and the dismantling of the next group of standard sections 6 can be carried out only after the group of standard sections 6 are dismantled by the large crane, so that the dismantling efficiency is low.
Disclosure of Invention
The invention aims to overcome the defects in the prior art, and provides an auxiliary dismantling device for a tower crane, wherein a tripod is arranged on a slewing mechanism, and the tripod is matched with an original tower crane winch to dismantle a standard knot of the tower crane, so that the problem that the tower crane cannot be dismantled by itself when the space is insufficient is solved, and the cost input for dismantling the tower crane is greatly reduced; and after a group of standard knots is dismantled, ground constructor shifts, utilizes the tripod to continue dismantling of next group of standard knots simultaneously, has improved the efficiency that the tower crane was dismantled.
In order to achieve the purpose, the invention adopts the technical scheme that:
an auxiliary dismantling device for a tower crane comprises a tower body, a balance arm and a tower cap, wherein the tower body is formed by sequentially connecting and building a plurality of standard sections, a rotary mechanism is arranged on the upper portion of the standard section on the uppermost portion of the tower crane, the upper portion of the rotary mechanism is connected with the tower cap through a pin shaft, and a first pulley is arranged on the upper portion of the tower cap; one side of the tower body is provided with a balance arm, one end of the balance arm is connected with the swing mechanism through a pin shaft, the other end of the balance arm is connected with one side of the first pulley through a steel cable, a winch is arranged on the balance arm, and one end of the balance arm is provided with a plurality of balance weights; the other side of the tower body is provided with a tripod, the tripod comprises lever arms and second pulleys, two groups of the lever arms are arranged, a first connecting plate is arranged between the two groups of the lever arms, a lifting ring is fixedly mounted on the first connecting plate and connected with the first pulley through a steel cable, one ends of the two groups of the lever arms are connected through a first connecting rod, the other ends of the lever arms are connected with a swing mechanism through hinges after the lever arms are disassembled, and the first connecting rod is provided with the second pulley through a bearing; a steel wire rope of the winch bypasses the first pulley and the second pulley, and the lower end of the steel wire rope is connected with a lifting hook.
Preferably, the included angle α between lever arm and the horizontal plane is 0-75, and its inclination passes through the length adjustment of cable wire, and the lever arm slope is arranged and has been reduced the horizontal projection distance of lever arm to reduce the operating space of tripod, be applicable to the demolishment of tower crane when the small space.
Preferably, symmetrically arranged support rods are arranged on one side of the swing mechanism, a reinforcing rod is arranged on one side of each support rod, one end of each reinforcing rod is fixedly connected with each support rod, the other end of each reinforcing rod is fixedly connected with the swing mechanism, a supporting plate is arranged at the upper end of each support rod, and the supporting plates are flush with the balance arms; the layer board supports spacingly to the tripod, has avoided the tripod downward sloping to cause the tower crane unstability, has guaranteed the safety that the tower crane was demolishd.
Preferably, a first sleeve is sleeved outside one end of the lever arm, the cross sections of the lever arm and the first sleeve are non-circular, and the triangular frame is prevented from being distorted and deformed due to radial rotation of the lever arm; one end of the first sleeve is connected with the swing mechanism through a hinge joint, a plurality of positioning holes are formed in the lever arm, a through hole matched with the positioning holes of the lever arm is formed in the first sleeve, and a positioning pin shaft is arranged in the through hole; according to the condition of job site, through inserting the locating pin week in the locating hole of difference comes the extension length of adjusting the lever arm to adjust the length of tripod, application scope is wider.
Preferably, lever arm one side fixed mounting have limit baffle, limit baffle has restricted the lever arm and has adjusted in the certain limit, when having avoided lever arm length adjustment, first sleeve causes the impact to first connecting plate.
Preferably, an adjusting device is fixedly mounted on the upper portion of the first connecting plate, the adjusting device comprises a base, a guide rail and a sliding block, the base is of a U-shaped structure, the base is fixedly mounted on the first connecting plate, the guide rail is fixedly mounted on two sides of the base, the sliding block is mounted on the guide rail, the sliding blocks on two sides are connected through a second connecting plate, and the lifting ring is fixedly mounted on the second connecting plate; the lower part of the second connecting plate is provided with a threaded sleeve, one side of the base is provided with a screw rod matched with the threaded sleeve, one end of the screw rod is provided with a hand wheel, one side of the hand wheel is provided with a power-assisted handle, and the power-assisted handle improves the rotating efficiency of the handle, so that the angle adjusting efficiency of the tripod is improved; the positions of the lifting rings on the second connecting plate are adjusted through the hand wheel rotating screw rod, so that the inclination angle of the tripod is finely adjusted, and the accuracy of tower crane disassembly is improved.
Preferably, base one side be equipped with flange, flange one side fixedly connected with buckle, the buckle is the U-shaped structure that does not seal, and the buckle joint is outside at the lead screw, and the upper and lower both sides of buckle are equipped with the complex screw hole, buckle upper portion one side is equipped with the fastening handle, fastening handle lower part be equipped with screw hole complex screw rod, thereby screw up the buckle and make the lead screw fixed, avoided the rings position to take place to remove.
Preferably, second pulley one side is equipped with the anticreep baffle, the anticreep baffle both sides are passed through the second connecting rod and are connected with first connecting rod, the anticreep baffle is convex, and anticreep baffle and wire rope clearance fit, and the anticreep baffle has avoided wire rope to drop with the second connecting plate when moving.
Preferably, a second sleeve is sleeved outside one end of the second connecting rod and connected with the second connecting rod through a second fastening knob, a shaft sleeve is arranged at one end of the second sleeve and sleeved outside the first connecting rod and connected with the first connecting rod through a first fastening knob; the extension length of the second connecting rod is adjusted according to the specification of the steel wire rope and the second connecting rod is fixed through the second fastening knob, so that the position of the anti-falling baffle is adjusted, the anti-falling baffle is suitable for the steel wire ropes of different specifications to use, the position of the anti-falling baffle is adjusted according to the inclination angle of the tripod and the anti-falling baffle is fixed through the first fastening knob, and interference between the steel wire rope and the anti-falling baffle is avoided.
Preferably, first connecting rod both ends be equipped with the articulated joint, the one end that the lever arm links to each other with first connecting rod be equipped with first connecting rod complex articulated joint, the articulated joint of first connecting rod and the articulated joint of lever arm pass through round pin axle swing joint, the lever arm on seted up the jack, first connecting plate install inside the jack, the lever arm adjustment opening angle of being convenient for is applicable to the standard festival of different specifications and uses.
The invention has the beneficial effects that:
1. the triangular support is arranged on the swing mechanism, and the triangular support is matched with the original tower crane winch to remove the standard knot of the tower crane, so that the problem that the tower crane cannot be removed by itself when the space is insufficient is solved, and the cost input for removing the tower crane is greatly reduced; and after a group of standard knots is dismantled, ground constructor shifts, utilizes the tripod to continue dismantling of next group of standard knots simultaneously, has improved the efficiency that the tower crane was dismantled.
2. The included angle α between the lever arm and the horizontal plane is 0-75 degrees, the inclined angle is adjusted by the length of the steel cable, the horizontal projection distance of the lever arm is reduced by the inclined arrangement of the lever arm, and therefore the operating space of the tripod is reduced, and the tower crane is suitable for dismantling in small space.
3. One side of the swing mechanism is provided with symmetrically arranged support rods, one side of each support rod is provided with a reinforcing rod, one end of each reinforcing rod is fixedly connected with the corresponding support rod, the other end of each reinforcing rod is fixedly connected with the swing mechanism, the upper end of each support rod is provided with a supporting plate, and the supporting plates are flush with the balance arms; the layer board supports spacingly to the tripod, has avoided the tripod downward sloping to cause the tower crane unstability, has guaranteed the safety that the tower crane was demolishd.
4. According to the condition of job site, through inserting the locating pin week in the locating hole of difference comes the extension length of adjusting the lever arm to adjust the length of tripod, application scope is wider.
5. The limiting baffle is fixedly mounted on one side of the lever arm, the limiting baffle limits the lever arm to be adjusted within a certain range, and when the length of the lever arm is adjusted, the first sleeve impacts the first connecting plate.
6. The adjusting device is fixedly arranged at the upper part of the first connecting plate and comprises a base, a guide rail and a sliding block, the base is of a U-shaped structure and is fixedly arranged on the first connecting plate, the guide rail is fixedly arranged on two sides of the base, the sliding block is arranged on the guide rail, the sliding blocks on the two sides are connected through a second connecting plate, and the hanging ring is fixedly arranged on the second connecting plate; the lower part of the second connecting plate is provided with a threaded sleeve, one side of the base is provided with a screw rod matched with the threaded sleeve, one end of the screw rod is provided with a hand wheel, one side of the hand wheel is provided with a power-assisted handle, and the power-assisted handle improves the rotating efficiency of the handle, so that the angle adjusting efficiency of the tripod is improved; the positions of the lifting rings on the second connecting plate are adjusted through the hand wheel rotating screw rod, so that the inclination angle of the tripod is finely adjusted, and the accuracy of tower crane disassembly is improved.
7. Base one side is equipped with flange, flange one side fixedly connected with buckle, and the buckle is not confined U-shaped structure, and the buckle joint is outside at the lead screw, and the upper and lower both sides of buckle are equipped with the complex screw hole, and buckle upper portion one side is equipped with the fastening handle, and the fastening handle lower part is equipped with screw hole complex screw rod, thereby screws up the buckle and makes the lead screw fixed, has avoided the rings position to take place to remove.
8. And an anti-falling baffle is arranged on one side of the second pulley, two sides of the anti-falling baffle are connected with the first connecting rod through the second connecting rod, the anti-falling baffle is arc-shaped, and the anti-falling baffle is in clearance fit with the steel wire rope, so that the anti-falling baffle is prevented from falling off from the second connecting plate when the steel wire rope runs.
9. The extension length of the second connecting rod is adjusted according to the specification of the steel wire rope and the second connecting rod is fixed through the second fastening knob, so that the position of the anti-falling baffle is adjusted, the anti-falling baffle is suitable for the steel wire ropes of different specifications to use, the position of the anti-falling baffle is adjusted according to the inclination angle of the tripod and the anti-falling baffle is fixed through the first fastening knob, and interference between the steel wire rope and the anti-falling baffle is avoided.
10. The hinge joint is arranged at the two ends of the first connecting rod, the hinge joint matched with the first connecting rod is arranged at one end, connected with the first connecting rod, of the first connecting rod, the hinge joint of the first connecting rod and the hinge joint of the lever arm are movably connected through a pin shaft, the jack is formed in the lever arm, the first connecting plate is installed inside the jack, the opening angle of the lever arm can be adjusted conveniently, and the hinge joint is suitable for standard sections of different specifications.
Drawings
FIG. 1 is a state diagram of tower crane construction in the prior art.
FIG. 2 is a schematic structural view of an auxiliary dismantling device for a tower crane according to the present invention.
FIG. 3 is a front view of an auxiliary dismantling device for a tower crane according to the present invention.
FIG. 4 is a schematic diagram of a tripod structure in the auxiliary dismantling device for a tower crane of the present invention.
FIG. 5 is a schematic structural diagram of an adjusting device in the auxiliary dismantling device for the tower crane of the present invention.
FIG. 6 is a partial enlarged view of part A of the auxiliary dismantling device for a tower crane of the present invention.
FIG. 7 is a partial enlarged view of a part B of the auxiliary dismantling device for a tower crane of the present invention.
In the figure: 1. a building; 2. a tower body; 3. an arm lever; 4. a balance arm; 5. a tower cap; 6. a standard section; 7. a tripod; 8. an adjustment device; 9. a swing mechanism; 401. balancing weight; 402. a winch; 403. a steel cord; 404. a first pulley; 405. a wire rope; 406. a lifting hook; 701. a hinge joint; 702. a first sleeve; 703. a jack; 704. a lever arm; 705. positioning a pin shaft; 706. positioning holes; 707. a limit baffle; 708. a first connecting plate; 709. a first link; 710. a second pulley; 711. a shaft sleeve; 712. a first fastening knob; 713. a second sleeve; 714. a second fastening knob; 715. a second link; 716. an anti-drop baffle plate; 801. a base; 802. a guide rail; 803. a slider; 804. a second connecting plate; 805. a hoisting ring; 806. a screw rod; 807. a hand wheel; 808. a power-assisted handle; 809. buckling; 810. fastening a handle; 901. a pin shaft; 902. a stay bar; 903. a reinforcing bar; 904. a support plate;
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to fig. 2 to 7, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the description of the present invention, it is to be understood that the terms "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on those shown in the drawings, are merely for convenience of description of the present invention, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention.
An auxiliary dismantling device for a tower crane comprises a tower body 2, a balance arm 4 and a tower cap 5, wherein the tower body 2 is formed by sequentially connecting and building a plurality of standard sections 6, a swing mechanism 9 is arranged on the upper portion of the standard section 6 on the uppermost portion of the tower crane, the upper portion of the swing mechanism 9 is connected with the tower cap 5 through a pin shaft 901, and a first pulley 404 is arranged on the upper portion of the tower cap 5; a balance arm 4 is arranged on one side of the tower body 2, one end of the balance arm 4 is connected with the swing mechanism through a pin shaft 901, the other end of the balance arm 4 is connected with one side of a first pulley 404 through a steel cable 403, a winch 402 is arranged on the balance arm 4, and a plurality of balance weights 401 are arranged on one end of the balance arm 4; a tripod 7 is arranged on the other side of the tower body 2, the tripod 7 comprises lever arms 704 and second pulleys 710, two groups of lever arms 704 are arranged, a first connecting plate 708 is arranged between the two groups of lever arms 704, a lifting ring 805 is fixedly installed on the first connecting plate 708, the lifting ring 805 is connected with the first pulley 404 through a steel cable 403, one ends of the two groups of lever arms 704 are connected through a first connecting rod 709, after the lever arm 3 is detached, the other end of the lever arm 704 is connected with a swing mechanism through a hinge joint 701, and the second pulley 710 is installed on the first connecting rod 709 through a bearing; a wire rope 405 of the winding machine 402 is wound around the first pulley 404 and the second pulley 710, and a lifting hook 406 is connected to the lower end of the wire rope 405.
The included angle α between lever arm 704 and the horizontal plane is 30, and its inclination passes through the length adjustment of cable 403, and the lever arm 704 slope is arranged and has been reduced the horizontal projection distance of lever arm 704 to reduce the operating space of tripod 7, be applicable to the demolishment of tower crane when the small space.
Symmetrically arranged support rods 902 are arranged on one side of the swing mechanism, a reinforcing rod 903 is arranged on one side of each support rod 902, one end of each reinforcing rod 903 is fixedly connected with the corresponding support rod 902, the other end of each reinforcing rod 903 is fixedly connected with the swing mechanism, a supporting plate 904 is arranged at the upper end of each support rod 902, and the supporting plates 904 are flush with the balance arms 4; layer board 904 supports tripod 7 spacing, has avoided 7 downward sloppings of tripod to cause the tower crane unstability, has guaranteed the safety that the tower crane was demolishd.
A first sleeve 702 is sleeved outside one end of the lever arm 704, the cross sections of the lever arm 704 and the first sleeve 702 are non-circular, and the situation that the tripod 7 is distorted and deformed due to radial rotation of the lever arm 3 is avoided; one end of the first sleeve 702 is connected with the swing mechanism through a hinge head 701, a plurality of positioning holes 706 are formed in the lever arm 704, a through hole matched with the positioning holes 706 of the lever arm 704 is formed in the first sleeve 702, and a positioning pin shaft 705 is arranged in the through hole; according to the condition of a construction site, the extension length of the lever arm 704 is adjusted by inserting the positioning pin into different positioning holes 706, so that the length of the tripod 7 is adjusted, and the application range is wider.
A limit baffle 707 is fixedly mounted on one side of the lever arm 704, and the limit baffle 707 limits the adjustment of the lever arm 704 within a certain range, so that the impact of the first sleeve 702 on the first connecting plate 708 during the length adjustment of the lever arm 704 is avoided.
The upper part of the first connecting plate 708 is fixedly provided with an adjusting device 8, the adjusting device 8 comprises a base 801, a guide rail 802 and a sliding block 803, the base 801 is of a U-shaped structure, the base 801 is fixedly arranged on the first connecting plate 708, the guide rail 802 is fixedly arranged on two sides of the base 801, the sliding block 803 is arranged on the guide rail 802, the sliding blocks 803 on two sides are connected through a second connecting plate 804, and the hanging ring 805 is fixedly arranged on the second connecting plate 804; a threaded sleeve is arranged at the lower part of the second connecting plate 804, a screw rod 806 matched with the threaded sleeve is arranged on one side of the base 801, a hand wheel 807 is arranged at one end of the screw rod 806, a power-assisted handle 808 is arranged on one side of the hand wheel 807, and the power-assisted handle 808 improves the rotating efficiency of the handle, so that the angle adjusting efficiency of the tripod 7 is improved; the position of the lifting ring 805 on the second connecting plate 804 is adjusted by rotating the screw rod 806 through the hand wheel 807, so that the inclination angle of the tripod 7 is finely adjusted, and the accuracy of tower crane disassembly is improved.
The screw rod fixing device is characterized in that a connecting flange is arranged on one side of the base 801, a buckle 809 is fixedly connected to one side of the connecting flange, the buckle 809 is of an unclosed U-shaped structure, the buckle 809 is clamped outside the screw rod 806, matched threaded holes are formed in the upper side and the lower side of the buckle 809, a fastening handle 810 is arranged on one side of the upper portion of the buckle 809, a screw rod matched with the threaded holes is arranged on the lower portion of the fastening handle 810, the buckle 809 is screwed down to fix the screw rod 806, and the position of the hanging ring 805 is prevented.
A second sleeve 713 is sleeved outside one end of the second connecting rod 715, the second sleeve 713 is connected with the second connecting rod 715 through a second fastening knob 714, a shaft sleeve 711 is arranged at one end of the second sleeve 713, and the shaft sleeve 711 is sleeved outside the first connecting rod 709 and is connected with the first connecting rod 709 through a first fastening knob 712; the extension length of the second connecting rod 715 is adjusted according to the specification of the steel wire rope 405 and the second connecting rod 715 is fixed by the second fastening knob 714, so that the position of the anti-falling baffle 716 is adjusted, the anti-falling baffle 716 is suitable for the steel wire ropes 405 of different specifications to use, the position of the anti-falling baffle 716 is adjusted according to the inclination angle of the tripod 7 and the anti-falling baffle 716 is fixed by the first fastening knob 712, and interference between the steel wire rope 405 and the anti-falling baffle 716 is avoided.
The two ends of the first connecting rod 709 are provided with hinges 701, one end of the lever arm 704 connected with the first connecting rod 709 is provided with a hinge 701 matched with the first connecting rod 709, the hinge 701 of the first connecting rod 709 is movably connected with the hinge 701 of the lever arm 704 through a pin shaft 901, the lever arm 704 is provided with a jack 703, and the first connecting plate 708 is installed inside the jack 703, so that the opening angle of the lever arm 704 can be adjusted conveniently, and the adjustable hinge is suitable for standard knots 6 of different specifications to use.
The utility model provides an supplementary device of demolising for tower crane, its use lies in: when the crane is used, a part of the counterweight 401 is firstly removed according to the weight of the standard knot 6, so that the tower body keeps balance when the tripod lifts the standard knot 6, then the jib 3 is removed by using the crane, the tripod 7 is installed at the installation position of the original jib 3 and the standard knot 6 through a pin shaft 901, then the tripod 7 is lifted by sleeving the steel cable 403 in a lifting ring 805, so that the tripod 7 replaces the original jib 3, then the steel cable 405 of the winch 402 on the balance arm 4 bypasses a first pulley 404 and a second pulley 710, the standard knot 6 of the original tower body 2 is removed, the removal mode is consistent with that of the prior art, which is removed by using the jib 3, and detailed description is omitted; the use of a crane is reduced to the greatest extent, the cost input of tower crane dismantling is reduced, and the dismantling efficiency of the tower crane is improved.
The foregoing is merely exemplary and illustrative of the present invention and various modifications, additions and substitutions may be made by those skilled in the art to the specific embodiments described without departing from the scope of the present invention as defined in the accompanying claims.
Claims (9)
1. An auxiliary dismantling device for a tower crane comprises a tower body, a balance arm and a tower cap, wherein the tower body is formed by sequentially connecting and building a plurality of standard sections, a rotary mechanism is arranged on the upper portion of the standard section on the uppermost portion of the tower crane, the upper portion of the rotary mechanism is connected with the tower cap through a pin shaft, and a first pulley is arranged on the upper portion of the tower cap; one side of the tower body is provided with a balance arm, one end of the balance arm is connected with the swing mechanism through a pin shaft, the other end of the balance arm is connected with one side of the first pulley through a steel cable, a winch is arranged on the balance arm, and one end of the balance arm is provided with a plurality of balance weights; the tower is characterized in that a tripod is arranged on the other side of the tower body and comprises two groups of lever arms and a second pulley, a first connecting plate is arranged between the two groups of lever arms, a lifting ring is fixedly mounted on the first connecting plate and connected with the first pulley through a steel cable, one ends of the two groups of lever arms are connected through a first connecting rod, the other ends of the lever arms are connected with a swing mechanism through hinges after the lever arms are disassembled, and the first connecting rod is provided with the second pulley through a bearing; a steel wire rope of the winch winds the first pulley and the second pulley, and the lower end of the steel wire rope is connected with a lifting hook; the adjusting device is fixedly arranged at the upper part of the first connecting plate and comprises a base, guide rails and sliding blocks, the base is of a U-shaped structure, the base is fixedly arranged on the first connecting plate, the guide rails are fixedly arranged on two sides of the base, the sliding blocks are arranged on the guide rails, the sliding blocks on the two sides are connected through a second connecting plate, and the lifting rings are fixedly arranged on the second connecting plate; the lower part of the second connecting plate is provided with a threaded sleeve, one side of the base is provided with a lead screw matched with the threaded sleeve, one end of the lead screw is provided with a hand wheel, and one side of the hand wheel is provided with a power-assisted handle.
2. The auxiliary dismantling device for the tower crane according to claim 1, wherein the angle α between the lever arm and the horizontal plane is 0-75 ° and the angle of inclination is adjusted by the length of the steel cable.
3. The auxiliary dismantling device for the tower crane as claimed in claim 1, wherein a symmetrically arranged brace rod is disposed on one side of the swing mechanism, a reinforcing rod is disposed on one side of the brace rod, one end of the reinforcing rod is fixedly connected to the brace rod, the other end of the reinforcing rod is fixedly connected to the swing mechanism, a supporting plate is disposed on the upper end of the brace rod, and the supporting plate is flush with the balance arm.
4. The auxiliary dismantling device for the tower crane according to claim 1, wherein a first sleeve is sleeved outside one end of the lever arm, and the cross sections of the lever arm and the first sleeve are non-circular; one end of the first sleeve is connected with the swing mechanism through a hinge joint, a plurality of positioning holes are formed in the lever arm, a through hole matched with the positioning holes of the lever arm is formed in the first sleeve, and a positioning pin shaft is arranged in the through hole.
5. The auxiliary dismantling device for the tower crane according to claim 4, wherein a limit baffle is fixedly installed on one side of the lever arm.
6. The auxiliary dismantling device for the tower crane according to claim 1, wherein a connecting flange is arranged on one side of the base, a buckle is fixedly connected to one side of the connecting flange, the buckle is of an unclosed U-shaped structure and is clamped outside the screw rod, matched threaded holes are formed in the upper side and the lower side of the buckle, a fastening handle is arranged on one side of the upper portion of the buckle, and a screw rod matched with the threaded holes is arranged on the lower portion of the fastening handle.
7. The auxiliary dismantling device for the tower crane according to claim 1, wherein an anti-falling baffle is arranged on one side of the second pulley, two sides of the anti-falling baffle are connected with the first connecting rod through the second connecting rod, the anti-falling baffle is arc-shaped, and the anti-falling baffle is in clearance fit with the steel wire rope.
8. The auxiliary dismantling device for the tower crane according to claim 7, wherein a second sleeve is sleeved outside one end of the second connecting rod and connected with the second connecting rod through a second fastening knob, and a shaft sleeve is arranged at one end of the second sleeve and sleeved outside the first connecting rod and connected with the first connecting rod through the first fastening knob.
9. The auxiliary dismantling device for the tower crane according to claim 1, wherein hinges are arranged at two ends of the first connecting rod, a hinge matched with the first connecting rod is arranged at one end of the first connecting rod, the hinge of the first connecting rod is movably connected with the hinge of the first connecting rod through a pin shaft, a jack is formed in the first connecting rod, and the first connecting plate is installed inside the jack.
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| CN201910082765.7A CN109678067B (en) | 2019-01-29 | 2019-01-29 | A supplementary device of demolising for tower crane |
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| CN201910082765.7A CN109678067B (en) | 2019-01-29 | 2019-01-29 | A supplementary device of demolising for tower crane |
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| CN117381362B (en) * | 2023-10-12 | 2024-06-14 | 南通庞源机械工程有限公司 | Tower crane attachment device dismantling equipment |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101734560A (en) * | 2009-12-18 | 2010-06-16 | 四川华西集团有限公司 | High-altitude dismantling method of inside-climbing tower crane for towering structure construction |
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| SU1763347A1 (en) * | 1989-06-19 | 1992-09-23 | Московское Производственное Объединение "Строймаш" | Tower crane and method of dismantling it |
| DE102008034676B4 (en) * | 2008-07-25 | 2016-11-24 | Liebherr-Werk Ehingen Gmbh | Method for mounting a telescopic crane jib and apparatus for carrying out the method |
| CN202744222U (en) * | 2012-04-17 | 2013-02-20 | 奉化市飞宇电器制造有限公司 | Hand-operated upright column-type hydraulic crane |
| CN108483279B (en) * | 2018-04-17 | 2019-04-16 | 中国电建集团山东电力建设有限公司 | The method for dismounting of adhesion tower-crane under narrow landform |
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Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101734560A (en) * | 2009-12-18 | 2010-06-16 | 四川华西集团有限公司 | High-altitude dismantling method of inside-climbing tower crane for towering structure construction |
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