CN214270021U - Operation radius lengthening device for tower crane - Google Patents
Operation radius lengthening device for tower crane Download PDFInfo
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- CN214270021U CN214270021U CN202120158744.1U CN202120158744U CN214270021U CN 214270021 U CN214270021 U CN 214270021U CN 202120158744 U CN202120158744 U CN 202120158744U CN 214270021 U CN214270021 U CN 214270021U
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- fixed pulley
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Abstract
The utility model particularly relates to an operation radius extension device that tower crane was used has solved current tower crane and has been used for crowd's tower operation, can not cover the problem that the floor working face leads to the efficiency of construction low completely when the intensive district of urban area building. An operation radius lengthening device for a tower crane is characterized in that an oblique supporting rod is arranged on the upper side of a parapet wall; a hanging ring is fixed at the right end of the lower surface of the oblique supporting rod, and a vertical supporting rod is fixed in the middle of the lower surface; the left part of the upper surface of the oblique supporting rod is provided with a fixed pulley I, and the right end of the upper surface is provided with a fixed pulley II; the third fixed pulley is arranged on the left of the oblique supporting rod; the steel wire rope is provided with a movable pulley, the lower side of the movable pulley is connected with a second hook, and the lower part of the attached lifting scaffold is connected with the second hook through an auxiliary steel wire rope. The utility model discloses an increase the radial purpose of tower crane operation, effectively improved the construction safety nature, the structure is firm, and the simple operation has the advantage that the structure is simple and easy, low in manufacturing cost, practicality are strong.
Description
Technical Field
The utility model relates to an extension device for the building engineering specifically is an operation radius extension device that tower crane was used.
Background
In the building engineering, the tower crane is the most common hoisting equipment, the position setting of the tower crane can be determined only by considering various factors, and the length of a hoisting arm during use determines the size of an operation radius of the tower crane during hoisting.
However, practice shows that the existing tower crane has the following problems when used for tower grouping operation and dense urban building areas: firstly because the operating mode of crowd's tower operation is compromise to needs, or receives the restriction of operation space, the big arm of tower crane often can not cover the floor operation face completely, and the installation of the outer wall template of local position, inserted lift scaffold is demolishd and all needs the secondary transport, and is inefficient, direct influence construction progress. Therefore, the invention is necessary to provide an operation radius lengthening device for the tower crane, so that the operation radius of the tower crane is lengthened, and the on-site hoisting requirement is met.
SUMMERY OF THE UTILITY MODEL
The utility model discloses a solve the problem that can not cover the floor operation face completely and lead to the efficiency of construction low when current tower crane is used for crowd's tower operation, urban area building intensive district, provide an operation radius extension fixture that the tower crane was used.
The utility model discloses an adopt following technical scheme to realize:
an operation radius lengthening device for a tower crane comprises the tower crane, a top floor slab, a parapet and an attached lifting scaffold; the upper side of the parapet is provided with an oblique supporting rod, the lower surface of the oblique supporting rod is abutted against the top end part of the parapet, the left end part of the oblique supporting rod is lower than the right end part of the oblique supporting rod, the left end part of the oblique supporting rod is fixedly connected to the upper surface of the top floor slab, and the right end part of the oblique supporting rod extends out of the top floor slab; a hanging ring positioned on the right side of the top floor slab is fixed at the right end of the lower surface of the oblique supporting rod, a vertical supporting rod positioned on the left side of the parapet is fixed in the middle of the lower surface, and the bottom of the vertical supporting rod is fixedly connected to the top floor slab; the left part of the upper surface of the oblique supporting rod is provided with a fixed pulley I, the right end of the upper surface is provided with a fixed pulley II, the wheel shaft of the fixed pulley I and the wheel shaft of the fixed pulley II are longitudinally arranged, and the wheel shaft of the fixed pulley II is positioned on the right side of the oblique supporting rod; a third fixed pulley which is fixedly connected with the upper surface of the top floor at the bottom and is positioned below a cargo boom of the tower crane is arranged on the left side of the oblique supporting rod, steel wire ropes are arranged on the third fixed pulley, the first fixed pulley and the second fixed pulley together, one end of each steel wire rope is fixedly connected with the cargo boom of the tower crane, and the other end of each steel wire rope is connected to the hanging ring through the first hook; and a movable pulley is arranged on the steel wire rope between the II-th fixed pulley and the hanging ring, the lower side of the movable pulley is connected with a II-th hook, and the lower part of the attached lifting scaffold is connected with the II-th hook through an auxiliary steel wire rope.
The utility model discloses can be used for the operation of demolising of each burst of inserted lift scaffold lower part, the during operation, each burst of upper portion of inserted lift scaffold has stood through the operation personnel and has demolishd on walking the guidance tape.
When the lifting device works, firstly, the connection between the shear wall and the attached lifting scaffold piece connecting wall piece to be detached is removed, then the steel wire rope is lifted upwards by the tower crane in a small distance, so that the length of the steel wire rope between the tower crane and the III fixed pulley is increased, the steel wire rope sections wound on the III fixed pulley, the I fixed pulley and the II fixed pulley are driven to move leftwards, the length of the steel wire rope section on the right side of the movable pulley is reduced, the movable pulley is lifted upwards in a small distance, and the attached lifting scaffold piece to be detached is lifted upwards in a small distance under the action of the II hook and the auxiliary steel wire rope, so that the wall piece connected with the movable pulley is loosened until the wall piece is separated from the shear wall; then moving a crane boom of the tower crane downwards, under the action of gravity of the attached lifting scaffold fragment to be detached, reducing the length of a steel wire rope between the tower crane and the III fixed pulley, driving steel wire rope sections wound on the III fixed pulley, the I fixed pulley and the II fixed pulley to move rightwards, increasing the length of the steel wire rope section on the right side of the movable pulley, driving the movable pulley to move downwards, under the action of the II hook and the auxiliary steel wire rope, synchronously moving the attached lifting scaffold fragment to be detached downwards until the attached lifting scaffold fragment falls to a safe area on the ground, and completing detachment of the lower fragment of the attached lifting scaffold; then adjusting the mounting positions of the third fixed pulley, the inclined support rod and the vertical support rod, and repeating the steps to finish the dismounting of the lower parts of other attached lifting scaffolds, thereby overcoming the problem that the existing tower crane cannot completely cover the floor operation surface to cause low construction efficiency when used for tower group operation and urban building dense area.
The third fixed pulley is a universal fixed pulley, an I-shaped base plate is horizontally fixed on the lower side of a fixed part of the third fixed pulley through welding, and the I-shaped base plate is fixedly connected with the top floor.
When the lower section of one of the attached lifting scaffolds is dismantled and the next section needs to be dismantled, the mounting positions of the inclined supporting rod and the vertical supporting rod only need to be adjusted, and the III fixed pulley does not need to be removed; this structural design has firstly increased the simple operation nature when this extension device uses, has secondly avoided removing many times, the influence of making a hole many times to top floor structure.
A second base plate is horizontally fixed at the left end part of the oblique supporting rod; the bottom level of vertical support bar is fixed with the III backing plate, and I backing plate, II backing plate, III backing plate all through a plurality of split bolt fixed connection in top layer floor.
The structural design of the I base plate, the II base plate and the III base plate increases the connection firmness of the III fixed pulley and the top floor slab, the diagonal bracing and the top floor slab, and the vertical bracing piece and the top floor slab, so that the structural reliability of the lengthening device is improved.
Two inclined fixed rods which are lower left and higher right and are distributed in parallel front and back are welded at the right end of the upper surface of the inclined supporting rod, two vertical connecting rods which are distributed in parallel front and back are welded at the right surface of the upper surface of the inclined supporting rod, and the inclined fixed rods and the vertical connecting rods which are positioned at the front side are welded and fixed with the front end part of the wheel shaft of the second fixed pulley; the oblique fixed rod and the vertical connecting rod which are positioned at the rear side are welded and fixed with the rear end part of the wheel shaft of the second fixed pulley.
This structural design has guaranteed that the shaft of II fixed pulley is located the right side of diagonal bracing pole, and then has guaranteed that wire rope is on the diagonal bracing pole right side for wire rope's lift does not receive the influence of diagonal bracing pole, has further promoted this extension fixture's structural reliability.
The I-th fixed pulley is fixedly connected with the inclined supporting rod through a plurality of mounting bolts.
And the middle part of the steel wire rope sequentially winds the lower side of the III fixed pulley, the lower side of the I fixed pulley and the upper side of the II fixed pulley from left to right.
The oblique supporting rod and the vertical supporting rod are both made of I-shaped steel; the oblique fixed rod and the vertical connecting rod are both made of steel bars; the first base plate, the second base plate and the third base plate are all made of steel plates with the thickness of 1 cm.
The materials of the I-shaped steel, the steel bar and the steel plate have the advantages of convenient material taking and firm structure, the manufacturing difficulty of the lengthening device is reduced, and the manufacturing cost is reduced.
The utility model has the advantages of reasonable design reliably, realized increasing the radial purpose of tower crane operation, can be used to the safe demolising of each subdivision of inserted lift scaffold lower part moreover, effectively improved the construction security, the structure is firm simultaneously, and is little to the building structure influence, and is further, the simple operation has improved the efficiency of construction, has that the structure is simple and easy, low in manufacturing cost, advantage that the practicality is strong, applicable tower crane equipment in crowd tower operation, urban area building intensive district.
Drawings
Fig. 1 is a schematic structural diagram of the present invention;
fig. 2 is a schematic view of the structure at the top floor in fig. 1.
In the figure, 1-tower crane, 2-top floor slab, 3-parapet wall, 4-attached lifting scaffold, 5-oblique supporting rod, 6-hanging ring, 7-vertical supporting rod, 8-I fixed pulley, 9-II fixed pulley, 10-III fixed pulley, 11-steel wire rope, 12-I hook, 13-movable pulley, 14-II hook, 15-auxiliary steel wire rope, 16-I backing plate, 17-II backing plate, 18-III backing plate, 19-split bolt, 20-oblique fixed rod, 21-vertical connecting rod and 22-mounting bolt.
Detailed Description
An operation radius lengthening device for a tower crane comprises a tower crane 1, a top floor 2, a parapet 3 and an attached lifting scaffold 4; the upper side of the parapet 3 is provided with an oblique supporting rod 5 which has a lower surface abutting against the top end part of the parapet 3 and is lower at the left side and higher at the right side, the left end part of the oblique supporting rod 5 is fixedly connected to the upper surface of the top floor slab 2, and the right end part of the oblique supporting rod extends out of the top floor slab 2; a hanging ring 6 positioned on the right side of the top floor slab 2 is fixed at the right end of the lower surface of the oblique supporting rod 5, a vertical supporting rod 7 positioned on the left side of the parapet 3 is fixed in the middle of the lower surface, and the bottom of the vertical supporting rod 7 is fixedly connected to the top floor slab 2; the left part of the upper surface of the oblique supporting rod 5 is provided with an I fixed pulley 8, the right end of the upper surface is provided with a II fixed pulley 9, the wheel shaft of the I fixed pulley 8 and the wheel shaft of the II fixed pulley 9 are both longitudinally arranged, and the wheel shaft of the II fixed pulley 9 is positioned on the right side of the oblique supporting rod 5; a third fixed pulley 10 which is fixedly connected with the upper surface of the top floor 2 at the bottom and is positioned below a lifting arm of the tower crane 1 is arranged on the left side of the oblique supporting rod 5, steel wire ropes 11 are jointly arranged on the third fixed pulley 10, the first fixed pulley 8 and the second fixed pulley 9, one end of each steel wire rope 11 is fixedly connected with the lifting arm of the tower crane 1, and the other end of each steel wire rope 11 is connected to the hanging ring 6 through a first hook 12; a movable pulley 13 is arranged on a steel wire rope 11 between the II-th fixed pulley 9 and the hanging ring 6, a II-th hook 14 is connected to the lower side of the movable pulley 13, and the lower part of the attached lifting scaffold 4 is connected with the II-th hook 14 through an auxiliary steel wire rope 15.
The III fixed pulley 10 is a universal fixed pulley, an I-shaped base plate 16 is horizontally fixed on the lower side of a fixing part of the III fixed pulley through welding, and the I-shaped base plate 16 is fixedly connected with the top floor 2. A second backing plate 17 is horizontally fixed at the left end part of the oblique supporting rod 5; the bottom level of vertical support bar 7 is fixed with III backing plate 18, and I backing plate 16, II backing plate 17, III backing plate 18 all through a plurality of tie bolt 19 fixed connection in top floor 2. Two inclined fixed rods 20 which are lower at the left and higher at the right and are distributed in parallel in the front-back direction are welded at the right end of the upper surface of the inclined supporting rod 5, two vertical connecting rods 21 which are distributed in parallel in the front-back direction are welded at the right surface of the upper surface of the inclined supporting rod 5, and the inclined fixed rods 20 and the vertical connecting rods 21 which are positioned at the front side are welded and fixed with the front end part of the wheel shaft of the II-th fixed pulley 8; the oblique fixed rod 20 and the vertical connecting rod 21 positioned on the rear side are welded and fixed with the rear end part of the wheel shaft of the II-th fixed pulley 8. The I-th fixed pulley 8 is fixedly connected with the inclined supporting rod 5 through a plurality of mounting bolts 22. The middle part of the steel wire rope 11 sequentially winds the lower side of the III fixed pulley 10, the lower side of the I fixed pulley 8 and the upper side of the II fixed pulley 9 from left to right. The oblique supporting rod 5 and the vertical supporting rod 7 are both made of I-shaped steel; the oblique fixing rod 20 and the vertical connecting rod 21 are both made of steel bars; the first shim plate 16, the second shim plate 17 and the third shim plate 18 are all made of steel plate with a thickness of 1 cm.
In a specific implementation process, the third fixed pulley 10 is a stainless steel universal single pulley with a model number of M100 produced by resale stainless steel products ltd; the length of the oblique supporting rod 5 is 6m, and the height of the oblique supporting rod is 180 mm; the type of the fixed pulley 8I and the type of the fixed pulley 9 II are both 3T; the distance between the fixed pulley 8 of the I th and the left end of the oblique supporting rod 5 is 1000 mm.
Claims (7)
1. An operation radius lengthening device for a tower crane comprises a tower crane (1), a top floor (2), a parapet wall (3) and an attached lifting scaffold (4); the method is characterized in that: an inclined supporting rod (5) with the lower surface abutting against the top end part of the parapet wall (3) and the left lower and the right higher is arranged on the upper side of the parapet wall, the left end part of the inclined supporting rod (5) is fixedly connected to the upper surface of the top floor slab (2), and the right end part of the inclined supporting rod extends out of the top floor slab (2); a hanging ring (6) positioned on the right side of the top floor (2) is fixed at the right end of the lower surface of the inclined supporting rod (5), a vertical supporting rod (7) positioned on the left side of the parapet (3) is fixed in the middle of the lower surface, and the bottom of the vertical supporting rod (7) is fixedly connected to the top floor (2); the left part of the upper surface of the oblique supporting rod (5) is provided with an I fixed pulley (8), the right end of the upper surface is provided with a II fixed pulley (9), the wheel shaft of the I fixed pulley (8) and the wheel shaft of the II fixed pulley (9) are longitudinally arranged, and the wheel shaft of the II fixed pulley (9) is positioned on the right side of the oblique supporting rod (5); a third fixed pulley (10) which is fixedly connected with the upper surface of the top floor (2) at the bottom and is positioned below a lifting arm of the tower crane (1) is arranged on the left side of the oblique supporting rod (5), steel wire ropes (11) are jointly arranged on the third fixed pulley (10), the first fixed pulley (8) and the second fixed pulley (9), one end of each steel wire rope (11) is fixedly connected with the lifting arm of the tower crane (1), and the other end of each steel wire rope is connected to the hanging ring (6) through a first hook (12); a movable pulley (13) is arranged on a steel wire rope (11) between the II-th fixed pulley (9) and the hanging ring (6), a II-th hook (14) is connected to the lower side of the movable pulley (13), and the lower part of the attached lifting scaffold (4) is connected with the II-th hook (14) through an auxiliary steel wire rope (15).
2. The operating radius lengthening device for the tower crane according to claim 1, characterized in that: the third fixed pulley (10) is a universal fixed pulley, an I-shaped base plate (16) is horizontally fixed on the lower side of a fixing part of the third fixed pulley through welding, and the I-shaped base plate (16) is fixedly connected with the top floor (2).
3. The operating radius lengthening device for the tower crane according to claim 2, characterized in that: a second base plate (17) is horizontally fixed at the left end part of the oblique supporting rod (5); the bottom level of vertical support pole (7) is fixed with III backing plate (18), and I backing plate (16), II backing plate (17), III backing plate (18) all are through a plurality of split bolt (19) fixed connection in top floor (2).
4. The operating radius lengthening device for the tower crane according to claim 3, characterized in that: two inclined fixed rods (20) which are lower at the left and higher at the right and are distributed in parallel in the front-back direction are welded at the right end of the upper surface of the inclined supporting rod (5), two vertical connecting rods (21) which are distributed in parallel in the front-back direction are welded at the right surface of the upper surface of the inclined supporting rod, and the inclined fixed rod (20) and the vertical connecting rods (21) which are positioned at the front side are welded and fixed with the front end part of the wheel shaft of the fixed pulley (9) II; the inclined fixed rod (20) and the vertical connecting rod (21) which are positioned at the rear side are welded and fixed with the rear end part of the wheel shaft of the II-th fixed pulley (9).
5. The operating radius lengthening device for the tower crane according to claim 1, characterized in that: the I-th fixed pulley (8) is fixedly connected with the oblique supporting rod (5) through a plurality of mounting bolts (22).
6. The operating radius lengthening device for the tower crane according to claim 1, characterized in that: and the middle part of the steel wire rope (11) sequentially winds the lower side of the III fixed pulley (10), the lower side of the I fixed pulley (8) and the upper side of the II fixed pulley (9) from left to right.
7. The operating radius lengthening device for the tower crane according to claim 4, wherein: the oblique supporting rod (5) and the vertical supporting rod (7) are both made of I-shaped steel; the oblique fixed rod (20) and the vertical connecting rod (21) are both made of steel bars; the I backing plate (16), the II backing plate (17) and the III backing plate (18) are all made of steel plates with the thickness of 1 cm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120158744.1U CN214270021U (en) | 2021-01-21 | 2021-01-21 | Operation radius lengthening device for tower crane |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120158744.1U CN214270021U (en) | 2021-01-21 | 2021-01-21 | Operation radius lengthening device for tower crane |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214270021U true CN214270021U (en) | 2021-09-24 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120158744.1U Active CN214270021U (en) | 2021-01-21 | 2021-01-21 | Operation radius lengthening device for tower crane |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214270021U (en) |
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2021
- 2021-01-21 CN CN202120158744.1U patent/CN214270021U/en active Active
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