CN109516390B - Flat-head tower crane convenient for manual carrying and installation and field installation method - Google Patents
Flat-head tower crane convenient for manual carrying and installation and field installation method Download PDFInfo
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- CN109516390B CN109516390B CN201811633265.XA CN201811633265A CN109516390B CN 109516390 B CN109516390 B CN 109516390B CN 201811633265 A CN201811633265 A CN 201811633265A CN 109516390 B CN109516390 B CN 109516390B
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- 238000009434 installation Methods 0.000 title claims abstract description 30
- 238000000034 method Methods 0.000 title claims abstract description 25
- 241000755266 Kathetostoma giganteum Species 0.000 title claims abstract description 11
- 238000004140 cleaning Methods 0.000 claims abstract description 17
- 230000007246 mechanism Effects 0.000 claims description 18
- 229910000831 Steel Inorganic materials 0.000 claims description 17
- 239000010959 steel Substances 0.000 claims description 17
- 230000000149 penetrating effect Effects 0.000 claims description 5
- 238000012423 maintenance Methods 0.000 abstract description 2
- 238000010586 diagram Methods 0.000 description 9
- 230000009194 climbing Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000012946 outsourcing Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Classifications
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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
- B66C23/66—Outer or upper end constructions
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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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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Jib Cranes (AREA)
Abstract
The invention relates to the technical field of lifting of installation, overhaul maintenance of roof equipment of high-rise and super-high-rise buildings. The purpose is to provide a flat-head tower crane which is convenient for manual transportation and installation, and the crane has the characteristics of simple structure, convenient installation and convenient transportation; the installation method is convenient to operate, safe and reliable. The technical proposal is as follows: a flat-head tower crane convenient for manual carrying and installation comprises a bottom frame fixed on a rail of a window cleaning machine, a tower body vertically fixed on the bottom frame, and a tower arm rotatably arranged at the top end of the tower body; the method is characterized in that: the tower arm comprises a platform, a balance arm, a tower head and a crane arm which are connected in sequence; the tower head is arranged at the top of the tower body through a rotary seat; the lifting arm and the balance arm are formed by connecting a plurality of tower arm sections; the tower body is formed by vertically connecting a plurality of standard sections; the standard knot is formed by four standard blocks in a surrounding mode, and each standard block comprises a first connecting rod, a second connecting rod and two third connecting rods.
Description
Technical Field
The invention relates to the technical field of hoisting of installation, overhaul and maintenance of roof equipment of high-rise and super-high-rise buildings, in particular to a flat-head tower crane convenient for manual transportation and installation and a field installation method of the crane.
Background
The window cleaning machine installed on the top of a building is maintained and modified, and a crane with a lifting capacity of 3.2 tons and a height of 15 meters is installed on the top of the building at a position with a range of 20 meters and a range of 20 meters. This requires the handling by manpower to the top of the building by means of a lift installed inside the building, thus the following two problems need to be considered: firstly, controlling the external dimension of a steel structure; and secondly, the weight of the steel structure.
The control of the external dimension of the steel structure is relatively simple: the maximum size allowed through during the whole handling in the building should be met. As for the control of the weight of the steel structure, not only is the steel structure suitable for manual transportation, but also the use safety of the crane as special equipment is considered.
Disclosure of Invention
The invention aims to overcome the defects in the background technology and provide a flat-head tower crane convenient for manual transportation and installation, which has the characteristics of simple structure, convenient installation and convenient transportation; the installation method is convenient to operate, safe and reliable.
The technical scheme of the invention is as follows:
a flat-head tower crane convenient for manual carrying and installation comprises a bottom frame fixed on a rail of a window cleaning machine, a tower body vertically fixed on the bottom frame, and a tower arm rotatably arranged at the top end of the tower body; the method is characterized in that:
the tower arm comprises a platform, a balance arm, a tower head and a crane arm which are connected in sequence; the tower head is arranged at the top of the tower body through a rotary seat; the lifting arm and the balance arm are formed by connecting a plurality of tower arm sections; the tower body is formed by vertically connecting a plurality of standard sections;
the standard joint is formed by enclosing four standard blocks, and each standard block comprises a first connecting rod, a second connecting rod and two third connecting rods, wherein the first connecting rod is vertically arranged, the second connecting rod is vertically fixed in the middle of the first connecting rod, and the two ends of the second connecting rod are respectively fixed with the first connecting rod and the second connecting rod; in the standard section, all standard blocks are connected through hinging holes and bolts, and the top ends and the bottom ends of two adjacent first connecting rods are connected through angle steel;
the underframe comprises a underframe beam connecting piece arranged in a rail of the window cleaning machine, four underframe beams which are fixed around the underframe beam connecting piece in an X shape, and stay bars connected between every two adjacent underframe beams; one end of the bottom frame beam is erected on the window cleaning machine track, and the other end of the bottom frame beam is inserted into the bottom frame beam connecting piece; the four stay bars are arranged in a rectangular shape.
And a connecting stay bar is arranged between the underframe and the standard section at the bottom.
The platform is provided with a counterweight, a lifting mechanism and an electrical cabinet; the lifting arm is provided with a lifting weight limiter, an amplitude variation mechanism, a load trolley and a lifting hook; and a moment limiter and a slewing mechanism are arranged on the tower head.
The rotary seat comprises a lower support, a slewing bearing and an upper support; the upper support consists of two upper support blocks; the lower support consists of four lower support blocks.
A field installation method of a flat head tower crane; the method comprises the following steps of:
1) Fixing a bottom frame beam connecting piece on a window cleaning machine track, supporting one end of the bottom frame beam on the window cleaning machine track, inserting the other end of the bottom frame beam into the bottom frame beam connecting piece and connecting the bottom frame beam connecting piece by a pin shaft, and installing a cotter pin;
2) The standard blocks are connected with the underframe through bolts, the four standard blocks are connected into a whole through bolts, then angle steel is fixed between first connecting rods of the two standard blocks through bolts, then a connecting stay bar is installed between the standard blocks and the underframe beam through a pin shaft, finally a ladder stand in a standard section is installed, and the standard section at the bottom is installed; assembling the rest standard blocks into standard sections, and waiting for subsequent installation;
3) Setting up a mounting platform on the standard section at the bottom, then hoisting the standard section to be mounted by using a manual hoist, placing the standard section at the top end of the standard section at the bottom, and connecting and fastening the two standard sections by using bolts; lifting the mounting platform to a second standard joint, and sequentially mounting other standard joints, a lower support, a slewing bearing, an upper support, a tower head and a slewing mechanism by the same method;
4) Fixing the suspender seat on the tower head, and installing the suspender; a rope is tied on a first tower arm section of the lifting arm, so that ground personnel can conveniently control the lifted lifting arm to prevent collision and also assist in installation;
5) Lifting the tower arm section, connecting the upper chord of the tower arm section with a tower head penetrating pin shaft, installing an upper cotter pin, sleeving a hole sleeve of a lower chord connecting plate of the tower arm section into the pin shaft on the tower head, and simultaneously connecting and fastening the tower head by using a bolt; the first tower arm section of the balance arm is assembled according to the same method;
6) The boom seat is arranged on a lower chord member of a first tower arm section of the balance arm, a boom is arranged, a second tower arm section of the balance arm is hoisted, the upper chord of the tower arm section is connected with a pin shaft penetrating the first tower arm section, and a cotter pin is arranged; the hole sleeve of the lower chord connecting plate of the tower arm section is sleeved into the connecting pin of the lower chord of the first tower arm section and is connected and fastened by bolts; sequentially installing balance arms according to the same method; the hanger rod is arranged on a hanger rod seat of a fourth section of balance arm, a platform is hoisted by the hanger rod, a hoisting mechanism is hoisted, the hoisting mechanism is connected with the platform by a pin shaft, and cotter pins are arranged;
7) Fixing a boom seat of a boom on a lower chord member of a first section of a boom, installing the boom, then installing a load trolley on a second section of the boom, hoisting the tower section by using the boom, installing the tower section on the first section of the boom, connecting the upper chord of the tower section by using a pin shaft, installing a cotter pin, sleeving a hole sleeve of a lower chord connecting plate of the tower section into a pin shaft on a lower chord connecting plate of the first section of the boom, and fastening by using a bolt connection;
8) Hoisting and installing hanging baskets, connecting the hanging baskets with a pin shaft for a load trolley, installing cotter pins, and respectively installing two hanging baskets on two sides of the load trolley;
the pulley frame is hoisted by the same method and is arranged on a tower arm section of a first section of crane arm, the pulley frame is connected by a pin shaft, a hoisting weight limiter is arranged in a tower arm section of a second section of crane arm, the pulley frame is connected by a pin shaft, and a cotter pin is arranged; the tower arm sections of the rest lifting arms are lifted, an installer can move the hanging rods by means of hanging baskets, the two installers are respectively positioned in the hanging baskets at the two sides, and the installed tower arm sections are pulled to enable the load trolley to slowly move forwards, and the load trolley is stopped at a fixed position by means of the rope breakage preventing device on the load trolley;
9) A platform positioned on the balance arm is installed by a suspender, a counterweight and an electrical cabinet are then hoisted, the counterweight and the electrical cabinet are fixed on the platform by bolts, and the operation linkage platform is installed on the platform;
10 Finally, threading the steel wire rope and installing the lifting hook.
The beneficial effects of the invention are as follows:
the steel structure of each part has smaller external dimension, and meets the maximum size allowed to pass in the whole process of carrying in a building; the main structural members can be decomposed and conveniently carried by manpower, so that the tower crane can be transported to the top layer of a building by means of a goods lift installed in the building, then the whole installation is completed by means of manual transportation to the roof, meanwhile, the safety requirements of the tower crane as special equipment in the use process are considered, various safety devices are complete, and the tower crane is a mechanical or electromechanical integrated product, is suitable for severe construction environments, and can ensure the working reliability of the tower crane.
Drawings
Fig. 1 is a schematic diagram of the front view structure of the present invention.
Fig. 2 is a schematic diagram of the front view of a standard knot in the present invention.
Fig. 3 is a schematic diagram of the front view of the standard block in the present invention.
Fig. 4 is a schematic left-hand view of a standard block of the present invention.
Fig. 5 is a schematic diagram of the front view of the rotary base and the tower head according to the present invention.
Fig. 6 is a schematic view of the front view of the upper support of the present invention.
Fig. 7 is a schematic front view of the lower support of the present invention.
Fig. 8 is a schematic diagram of the front view of the upper holder block of the present invention.
Fig. 9 is a schematic diagram of the front view of the lower support block of the present invention.
Fig. 10 is a schematic view of the front view of the boom in the present invention.
FIG. 11 is a schematic diagram of a front view of a balance arm and a platform according to the present invention.
FIG. 12 is a schematic top view of the chassis and window wiper track of the present invention.
Fig. 13 is a schematic diagram of a front view of a chassis and a standard joint according to the present invention.
FIG. 14 is a schematic view of a standard knot installed using a mounting platform.
FIG. 15 is a schematic view of the mounting of the lower support using the mounting platform.
Fig. 16 is a schematic view of the use of a rope to mount a balance arm.
Fig. 17 is a schematic view of the use of ropes to mount a boom.
Fig. 18 is a schematic diagram of the installation of counterweights, lifting mechanisms and electrical cabinets.
Fig. 19 is a schematic view of the mounting hook.
Detailed Description
The present invention will be further described with reference to the accompanying drawings, but the present invention is not limited to the following examples.
As shown in figure 1, the flat-head tower crane convenient for manual carrying and installation comprises a underframe 1, a tower body and a tower arm.
The underframe 1 is fixed on a rail of a window cleaning machine (see fig. 12) and comprises an underframe beam connecting piece 20, four underframe beams 22 and four supporting rods 21. The frame beam connecting piece is arranged between two window cleaning machine rails 23, four frame beams are arranged around the frame beam connecting piece in an X shape, one end of each frame beam is erected on the window cleaning machine rail, the other end of each frame beam is inserted into the frame beam connecting piece and connected through a pin shaft (corresponding sockets are arranged on the frame beam connecting piece and omitted in the drawing), four supporting rods are arranged around the frame beam connecting piece in a rectangular shape, and two ends of each supporting rod are fixed with the two frame beams through hinging seats 21-1 (the hinging seats are outsourcing pieces).
The tower body is vertically fixed on the underframe, and is formed by vertically connecting a plurality of standard sections 2. The standard knot comprises four standard blocks connected end to end, each standard block comprises a first connecting rod 2.1 (the upper end and the lower end of the first connecting rod are respectively welded and fixed with a connecting lug 2.11 with a hole), a second connecting rod 2.2 which is vertically welded and fixed in the middle of the first connecting rod and is horizontally arranged, and two third connecting rods 2.3 (as shown in figure 3, the left end of each third connecting rod is provided with a through hole, the through holes are aligned with and inserted and fixed with the holes of the connecting lug 2.11 through bolts, the right end of each second connecting rod and the right end of each third connecting rod are also welded and fixed on a connecting seat 2.4 with the holes together, the standard blocks are also connected into a whole through a climbing lug 2.5 with the holes respectively, bolts are inserted into the holes of the connecting seat and the climbing lug and are connected and fixed, and the top ends of the adjacent two first connecting rods are also connected through horizontally arranged angle steels 24 (the two ends of each angle steel 24 are connected with the connecting lug through the inserted holes). For the standard section at the bottom, the first connecting rod of the standard block is vertically fixed (fixed by bolts) on the bottom frame beam of the bottom frame, and a connecting stay rod 26 is further arranged between the first connecting rod of the standard block and the bottom frame beam of the bottom frame.
The tower arm is rotatably arranged at the top end of the tower body and comprises a platform 34, a balance arm 11, a tower head 12 and a crane arm 15 which are horizontally connected (connected through bolts) in sequence. The tower head is arranged at the top of the tower body through a rotary seat 10, and a moment limiter (omitted in the figure) and a rotary mechanism 14 are arranged on the tower head.
The rotary seat (conventional structure) comprises a lower support 6, a slewing bearing 7 and an upper support 8. The upper support is formed by connecting two upper support seat blocks through embedded assembly (conventional structure) and high-strength bolts, and is connected with the tower head through M30 high-strength bolts and is also connected with the slewing bearing through high-strength bolts. The lower support is formed by connecting four lower support blocks through embedded assembly (conventional structure) and high-strength bolts, and is connected with a standard section of the tower body through M30 high-strength bolts and is also connected with the slewing bearing through high-strength bolts.
The lifting arm and the balance arm are formed by connecting a plurality of tower arm sections (conventional structure). The cross section of the tower arm section is triangular, the upper chord member is made of round steel, the lower chord member is made of square tubes, the tower arm sections are connected through a pin shaft and a high-strength bolt, the tower arm sections are connected with the tower head through the pin shaft and the high-strength bolt, and the length of the tower arm section is 1.5 m, so that manual carrying can be met.
The crane boom (conventional structure) is formed by connecting 14 tower boom sections. The lifting arm is provided with a lifting limiter 16, an amplitude variation mechanism 17, a load trolley 18 and a lifting hook 19. The balance arm is formed by connecting 4 tower arm sections, a platform is fixed at the left end (direction of figure 1) of the balance arm, and the platform is formed by welding two H-shaped beams 34.1 and is connected with the balance arm through a pin shaft. The configuration platform is provided with a counterweight 32, a lifting mechanism 9 and an electric cabinet 33, and is also provided with a handrail and a pavement.
The invention has the advantages that each part is a steel structural member and can be decomposed into a plurality of units, each unit has low height and small mass (less than 250 Kg), and can be transported to the top layer of a building by means of a goods lift arranged in the building, and then transported to a roof by means of manual work and is installed.
The installation method of the invention comprises the following steps:
1. fixing the bottom frame beam connecting piece 20 at the middle position of the window cleaning machine rail 23, supporting one end of the bottom frame beam 22 on the window cleaning machine rail 23 by manpower, inserting the other end into the bottom frame beam connecting piece 20 and connecting the other end by a pin shaft, installing cotter pins and fully expanding; then, a stay bar 21 is arranged between every two bottom frame beams in sequence (the two ends of the stay bar are respectively fixed with a hinge seat 21-1 through a hinge pin, and the hinge seat is respectively fixed on the bottom frame beams through the hinge pin);
2. the standard blocks are connected with the underframe through M30 bolts, four standard blocks are connected into a whole through special M24 high-strength bolts 27, angle steel 24 is fixed between first connecting rods of the two standard blocks through special M14 bolts 25, a connecting stay rod 26 is arranged between the first connecting rods of the standard blocks and the underframe beam through a pin shaft (two ends of the connecting stay rod are respectively fixed with a hinge lug 26-1 in advance, the hinge lug 26-1 is hinged and fixed with the hinge lug fixed on the first connecting rods or the underframe beam in advance through the pin shaft), a ladder stand in a standard section is finally installed, and the standard section at the bottom is installed; assembling the rest standard blocks into standard sections, and waiting for subsequent installation;
3. setting up a mounting platform 28 on the standard section 2 at the bottom, then hoisting the standard section to be mounted by using a 1-ton manual hoist, placing the standard section on the standard section at the bottom, and connecting and fastening the two standard sections by using an M30 high-strength bolt; the mounting platform is lifted to a second standard joint, and other standard joints, a lower support 6, a slewing bearing 7, an upper support 8, a tower head 12 and a slewing mechanism 14 are sequentially assembled by the same method;
4. fixing the boom seat 29 on a 135 x 135 square tube of the tower head 12, and mounting the boom 30; the first tower arm section of the lifting arm 15 is tied with a rope 31, so that ground personnel can conveniently control the lifted lifting arm 15 to prevent collision and also assist in installation, the tower arm section is lifted, the upper chord of the tower arm section is connected with a pin shaft with the diameter of 85 of the tower head, a cotter pin is installed and fully opened, a hole of a lower chord connecting plate of the tower arm section is sleeved with a pin shaft with the diameter of 40 on the tower head, and meanwhile, the tower arm section is connected and fastened with the tower head 12 by a high-strength bolt of M24; the first tower arm section of the balance arm is assembled according to the same method;
6. the boom seat is arranged at a proper position of a lower chord of a first tower arm section of the balance arm 11, a boom 30 is arranged, a second tower arm section of the balance arm 11 is hoisted, the upper chord of the tower arm section is connected with a pin shaft with the penetrating diameter 70 of the first tower arm section, a cotter pin is arranged and fully opened, a hole of a lower chord connecting plate of the tower arm section is sleeved into a connecting pin of a lower chord of the first tower arm section, and the connecting pin is connected and fastened by an M24 high-strength bolt; sequentially installing balance arms according to the same method; the hanger rod 30 is arranged on a hanger rod seat of a fourth section of balance arm, the platform is hoisted by the hanger rod 30, the lifting mechanism 9 is hoisted, the platform is connected by a pin shaft with the diameter of 40, and the hanger rod is penetrated and fully opened;
7. the hanger rod seat 29 of the hanger rod 30 is fixed on the lower chord member of the first section tower arm section of the installed hanger arm, the hanger rod 30 is installed, then the load trolley 18 is installed on the second section tower arm section of the hanger arm and is firmly fixed, the tower arm section is hoisted by the hanger rod 30 and is installed on the first section tower arm section, the upper chord of the tower arm section is connected with an upper cotter pin by a pin shaft with the diameter of 75 and is fully opened, the pin shaft with the diameter of 35 on the lower chord connecting plate of the first section tower arm section of the hanger arm is sleeved in the hole sleeve of the lower chord connecting plate of the tower arm section, and then the tower arm section is connected and fastened by M24 high-strength bolts;
8. hoisting and installing hanging baskets, connecting the hanging baskets with the load trolley 18 by using a pin shaft with the diameter of 18, installing cotter pins and fully expanding, wherein the two hanging baskets are respectively installed on two sides of the load trolley 18;
in the same way as above, the pulley frame is hoisted and arranged on the tower arm section of the first section of the crane arm, the hoisting weight limiter 16 is arranged in the tower arm section of the second section of the crane arm and is connected by a pin shaft with the diameter of 35, and the pulley frame is provided with a cotter pin and is fully opened; the tower arm sections of the rest lifting arms are lifted, an installer can move the hanging rods by means of hanging baskets, the two installers are respectively positioned in the hanging baskets at the two sides, and pull the installed tower arm sections to enable the load trolley to slowly move forwards, and the load trolley is stopped at a fixed position by means of a rope breakage preventing device (the existing device) on the load trolley;
9. a platform 34 positioned on the balance arm is installed by a suspender 30, a counterweight 32 and an electrical cabinet 33 are hoisted, the counterweight is fixed on the platform by bolts, an operation linkage table (the existing device) is installed on the platform 34, and the operation linkage table is fixed by M10 bolts;
10. finally, the wire rope is threaded and the hanging hook 19 is installed.
Claims (1)
1. A field installation method of a flat-head tower crane convenient for manual carrying and installation; the method comprises the following steps of:
1) Fixing a bottom frame beam connecting piece on a window cleaning machine track, supporting one end of the bottom frame beam on the window cleaning machine track, inserting the other end of the bottom frame beam into the bottom frame beam connecting piece and connecting the bottom frame beam connecting piece by a pin shaft, and installing a cotter pin;
2) The standard blocks are connected with the underframe through bolts, the four standard blocks are connected into a whole through bolts, then angle steel is fixed between first connecting rods of the two standard blocks through bolts, then a connecting stay bar is installed between the standard blocks and the underframe beam through a pin shaft, finally a ladder stand in a standard section is installed, and the standard section at the bottom is installed; assembling the rest standard blocks into standard sections, and waiting for subsequent installation;
3) Setting up a mounting platform on a standard section (2) at the bottom, then hoisting the standard section to be mounted by using a manual hoist, placing the standard section at the top end of the standard section at the bottom, and connecting and fastening the two standard sections by using bolts; lifting the mounting platform to a second standard joint, and sequentially mounting other standard joints, a lower support, a slewing bearing, an upper support, a tower head and a slewing mechanism by the same method;
4) Fixing the suspender seat on the tower head, and installing the suspender; a rope (31) is tied on a first tower arm section of the lifting arm, so that ground personnel can control the lifting arm conveniently to prevent collision and assist in installation;
5) Lifting the tower arm section, connecting the upper chord of the tower arm section with a tower head penetrating pin shaft, installing an upper cotter pin, sleeving a hole sleeve of a lower chord connecting plate of the tower arm section into the pin shaft on the tower head, and simultaneously connecting and fastening the tower head by using a bolt; the first tower arm section of the balance arm is assembled according to the same method;
6) The boom seat is arranged on a lower chord member of a first tower arm section of the balance arm, a boom is arranged, a second tower arm section of the balance arm is hoisted, the upper chord of the tower arm section is connected with a pin shaft penetrating the first tower arm section, and a cotter pin is arranged; the hole sleeve of the lower chord connecting plate of the tower arm section is sleeved into the connecting pin of the lower chord of the first tower arm section and is connected and fastened by bolts; sequentially installing balance arms according to the same method; the hanger rod is arranged on a hanger rod seat of a fourth section of balance arm, a platform is hoisted by the hanger rod, a hoisting mechanism is hoisted, the hoisting mechanism is connected with the platform by a pin shaft, and cotter pins are arranged;
7) Fixing a boom seat of a boom on a lower chord member of a first section of a boom, installing the boom, then installing a load trolley on a second section of the boom, hoisting the tower section by using the boom, installing the tower section on the first section of the boom, connecting the upper chord of the tower section by using a pin shaft, installing a cotter pin, sleeving a hole sleeve of a lower chord connecting plate of the tower section into a pin shaft on a lower chord connecting plate of the first section of the boom, and fastening by using a bolt connection;
8) Hoisting and installing hanging baskets, connecting the hanging baskets with a pin shaft for a load trolley, installing cotter pins, and respectively installing two hanging baskets on two sides of the load trolley;
the pulley frame is hoisted by the same method and is arranged on a tower arm section of a first section of crane arm, the pulley frame is connected by a pin shaft, a hoisting load limiter (16) is arranged in a tower arm section of a second section of crane arm, the pulley frame is connected by a pin shaft, and a cotter pin is arranged; the tower arm sections of the rest lifting arms are lifted, an installer can move the hanging rods by means of hanging baskets, the two installers are respectively positioned in the hanging baskets at the two sides, and the installed tower arm sections are pulled to enable the load trolley to slowly move forwards, and the load trolley is stopped at a fixed position by means of the rope breakage preventing device on the load trolley;
9) A platform positioned on the balance arm is installed by a suspender, a counterweight and an electrical cabinet are then hoisted, the counterweight and the electrical cabinet are fixed on the platform by bolts, and the operation linkage platform is installed on the platform;
10 Finally, threading the steel wire rope and installing a lifting hook (19);
the flat-head tower crane convenient for manual carrying and installation comprises a bottom frame (1) fixed on a rail of a window cleaning machine, a tower body vertically fixed on the bottom frame and a tower arm rotatably installed at the top end of the tower body;
the tower arm comprises a platform (34), a balance arm (11), a tower head (12) and a crane arm (15) which are connected in sequence; the tower head is arranged at the top of the tower body through a rotary seat (10); the lifting arm and the balance arm are formed by connecting a plurality of tower arm sections; the tower body is formed by vertically connecting a plurality of standard sections (2);
the standard joint is formed by enclosing four standard blocks, and each standard block comprises a first connecting rod (2.1) which is vertically arranged, a second connecting rod (2.2) which is vertically fixed at the middle part of the first connecting rod, and two third connecting rods (2.3) with two ends respectively fixed with the first connecting rod and the second connecting rod; in the standard section, all standard blocks are connected through hinging holes and bolts, and the top ends and the bottom ends of two adjacent first connecting rods are connected through angle steels (24);
the underframe comprises a underframe beam connecting piece (20) arranged in a rail of the window cleaning machine, four underframe beams (22) which are fixed around the underframe beam connecting piece in an X shape, and stay bars (21) connected between every two adjacent underframe beams; one end of the bottom frame beam is erected on the window cleaning machine track, and the other end of the bottom frame beam is inserted into the bottom frame beam connecting piece; the four stay bars are arranged in a rectangular shape;
a connecting stay bar (26) is arranged between the underframe and the standard joint at the bottom;
the platform is provided with a counterweight (32), a lifting mechanism (9) and an electrical cabinet (33); the lifting arm is provided with a lifting limiter (16), an amplitude variation mechanism (17), a load trolley (18) and a lifting hook (19); the tower head is provided with a moment limiter and a slewing mechanism (14);
the rotary seat comprises a lower support (6), a slewing bearing (7) and an upper support (8); the upper support consists of two upper support blocks; the lower support consists of four lower support blocks.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811633265.XA CN109516390B (en) | 2018-12-29 | 2018-12-29 | Flat-head tower crane convenient for manual carrying and installation and field installation method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811633265.XA CN109516390B (en) | 2018-12-29 | 2018-12-29 | Flat-head tower crane convenient for manual carrying and installation and field installation method |
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| Publication Number | Publication Date |
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| CN109516390A CN109516390A (en) | 2019-03-26 |
| CN109516390B true CN109516390B (en) | 2024-03-08 |
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| CN112645224A (en) * | 2020-12-17 | 2021-04-13 | 海宁虎霸重工有限公司 | Tower crane |
Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
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| EP0846650A1 (en) * | 1996-12-03 | 1998-06-10 | Potain | Method and device for mounting jib tension elements on tower cranes |
| CN202214167U (en) * | 2011-07-23 | 2012-05-09 | 周杨 | tower crane with improved structure |
| CN102826463A (en) * | 2012-09-11 | 2012-12-19 | 张月梅 | Combined type pedestal of tower crane |
| CN203112386U (en) * | 2013-01-31 | 2013-08-07 | 杭州国电大力机电工程有限公司 | Tower type truss mounting structure without assistance of high altitude hoisting equipment |
| CN203545527U (en) * | 2013-10-12 | 2014-04-16 | 中建三局建设工程股份有限公司 | Tower crane and conversion base thereof |
| CN203807003U (en) * | 2013-12-04 | 2014-09-03 | 中联重科股份有限公司 | Tower crane mounting underframe |
| CN204588550U (en) * | 2015-02-16 | 2015-08-26 | 国家电网公司 | A kind of lifting mechanism inhead type lands electric power pole |
| CN104944300A (en) * | 2015-06-26 | 2015-09-30 | 浙江省建设机械集团有限公司 | Arm crane foundation |
| CN205527429U (en) * | 2016-01-28 | 2016-08-31 | 国家电网公司 | Jib crane is from jacking device |
| CN106276631A (en) * | 2016-09-30 | 2017-01-04 | 庄爱军 | A kind of roofing device for hoisting and crane and the method for dismounting of crane arm |
| CN209601982U (en) * | 2018-12-29 | 2019-11-08 | 浙江省特种设备检验研究院 | A kind of flat-top tower crane convenient for manpower transport's installation |
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2018
- 2018-12-29 CN CN201811633265.XA patent/CN109516390B/en active Active
Patent Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3944081A (en) * | 1969-04-09 | 1976-03-16 | General Crane Industries Limited | Tower crane |
| EP0846650A1 (en) * | 1996-12-03 | 1998-06-10 | Potain | Method and device for mounting jib tension elements on tower cranes |
| CN202214167U (en) * | 2011-07-23 | 2012-05-09 | 周杨 | tower crane with improved structure |
| CN102826463A (en) * | 2012-09-11 | 2012-12-19 | 张月梅 | Combined type pedestal of tower crane |
| CN203112386U (en) * | 2013-01-31 | 2013-08-07 | 杭州国电大力机电工程有限公司 | Tower type truss mounting structure without assistance of high altitude hoisting equipment |
| CN203545527U (en) * | 2013-10-12 | 2014-04-16 | 中建三局建设工程股份有限公司 | Tower crane and conversion base thereof |
| CN203807003U (en) * | 2013-12-04 | 2014-09-03 | 中联重科股份有限公司 | Tower crane mounting underframe |
| CN204588550U (en) * | 2015-02-16 | 2015-08-26 | 国家电网公司 | A kind of lifting mechanism inhead type lands electric power pole |
| CN104944300A (en) * | 2015-06-26 | 2015-09-30 | 浙江省建设机械集团有限公司 | Arm crane foundation |
| CN205527429U (en) * | 2016-01-28 | 2016-08-31 | 国家电网公司 | Jib crane is from jacking device |
| CN106276631A (en) * | 2016-09-30 | 2017-01-04 | 庄爱军 | A kind of roofing device for hoisting and crane and the method for dismounting of crane arm |
| CN209601982U (en) * | 2018-12-29 | 2019-11-08 | 浙江省特种设备检验研究院 | A kind of flat-top tower crane convenient for manpower transport's installation |
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| CN109516390A (en) | 2019-03-26 |
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