CN103420283A - Swing arm structure of tower crane - Google Patents
Swing arm structure of tower crane Download PDFInfo
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- CN103420283A CN103420283A CN2012101576974A CN201210157697A CN103420283A CN 103420283 A CN103420283 A CN 103420283A CN 2012101576974 A CN2012101576974 A CN 2012101576974A CN 201210157697 A CN201210157697 A CN 201210157697A CN 103420283 A CN103420283 A CN 103420283A
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- angle steel
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- slide rail
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Abstract
The invention discloses a swing arm structure of tower carne. The swing arm structure comprises a tower body, a rack cage is sleevedly arranged on the tower body, the bottom of the tower body is provided with a swing mechanism, a swing arm is horizontally arranged on one side of the rack cage, the swing arm mainly comprises two angle steels, which are connected to the rack cage, and a slideway angle steel supply group is provided with a luffing cart. Through setting a plurality of group longitudinal ribs, a plurality of diagonal ribs, and a plurality of strengthening ribs, which are arranged in a triangle grid shape, between the two angle steels and the sildeway angle steel, the structure strength of the swing arm is strengthened, the swing arm is horizontally arranged with the plane upward placed and the pointed cone downward placed, so the traction force, which is supplied by a steel rope and used for fixing the swing arm, and the lifting gravity force born by the swing arm are distributed, and the goal of increasing the lifting ability of the swing arm is achieved.
Description
Technical field
The present invention is relevant with tower crane, refers to especially that a kind of swing arm is parallel to be located at the tower crane that tower body one side and swing type mechanism are located at the tower body bottom.
Background technology
As shown in Figure 1, general tower crane 10 arranges single-revolution mechanism 12 to drive swing arm 13 turn on horizontal surface to complete the operation of tower crane 10 parallel motion objects on its tower body 11 tops, and coordinates a luffing mechanism 14 of being located at swing arm 13 to complete the vertical hoisting object.
It should be noted that, known tower crane 10 is located at tower body 11 tops because of its swing type mechanism 12, make the mechanism coordinated with described swing type mechanism 12, concentrate all thereupon and be located at tower body 11 tops as swing arm 13, equilibrium arm 15, stock cage 16 etc., form the tower crane 10 of the top-heavy and easy crank of a kind of tower body 11.Therefore, known tower crane 10 mainly alleviates tower body 11 top weight by swing arm 13 structures, as shown in Figure 1, this swing arm 13 has a horizontally set and the ladder 131 that consists of two rectangular shaft connects with 12 groups of swing type mechanisms, described ladder 131 upsides are provided with a plurality of groups of ribs 132 and concentrate and connect towards 133 groups of cylindric bodies of rod, make swing arm 13 form hollow out triangular prism structures, and this swing arm 13 connect fixing with its body of rod 133 by 17 groups, cable wire and tower top post.
Yet, swing arm 13 can bear the vertical lifting gravity G towards ground when hoisting operation simultaneously, and the tractive force F of tower top post 17 cable wires, and a plurality of groups of ribs 132 be take the stress that four structures of concentrating group to be located at the body of rod 133 as a unit make lifting gravity G impose on swing arm 13 on the contrary and are concentrated to the body of rod 133, cause swing arm 13 that the problem of load larrying member undercapacity is arranged, therefore known tower crane 10 swing arm 13 structures have further improved space when actual hoisting operation.
Summary of the invention
The technical problem to be solved in the present invention is to provide a kind of boom structure of tower crane, can improve the structural strength of swing arm, increases the load-carrying ability of swing arm.
For solving the problems of the technologies described above, the invention provides a kind of boom structure of tower crane, described tower crane has a tower body, described tower body outer cover is provided with a stock cage and bottom is provided with single-revolution mechanism, described stock cage one side is horizontally disposed with a swing arm, described swing arm mainly comprises extension in the same direction and two angle steel that connect with stock cage group, and one the slide rail angle steel establish an amplitude variation trolley for group, described two angle steel have been formed separately a flat part and a swash plate section, described slide rail angle steel is formed with two boards and a slide rail section, described two angle steel are provided with a plurality of nodes at correspondence position, the corresponding angle steel node location of described slide rail angle steel is provided with a node at every two angle steel Nodes, wherein, between two flat parts of described two angle steel, group is connected to a plurality of groups of ribs and a plurality of diagonal rib, each organizes the Node configuration that rib connects two angle steel correspondence positions, each diagonal rib diagonal angle is arranged between two adjacent sets ribs and two angle steel, between the swash plate section of the angle steel that each board of described slide rail angle steel is corresponding with it, group is connected to a plurality of strengthening ribs, two adjacent slide rail angle steel nodes and two angle steel nodes between it respectively are provided with two strengthening ribs, a plurality of strengthening ribs are the triangle trellis and arrange suffered stress to two angle steel of dispersion between two angle steel and slide rail angle steel.
The present invention mainly forms horizontally disposed boom structure with steel angle structure, use the structural strength that promotes swing arm, and the swing arm that will be the triangle column with plane upward pointed cone kenel down be horizontally disposed with, disperse cable wire for the fixedly tractive force of swing arm and the lifting gravity that swing arm bears, reached the purpose that increases the swing arm load-carrying ability.
The accompanying drawing explanation
Fig. 1 is the sectional perspective structural representation of known tower crane;
Fig. 2 is the integral structure schematic diagram of tower crane of the present invention;
Fig. 3 A is the local enlarged diagram of the spatial structure of swing arm of the present invention;
Fig. 3 B is the structure schematic side view of Fig. 3 A;
Fig. 3 C is another visual angle local structure enlarged diagram of Fig. 3 A;
Fig. 4 is the cross-sectional schematic of the 4-4 hatching line of Fig. 3 B;
Fig. 5 is the angle steel local structure enlarged diagram of Fig. 4;
Fig. 6 is the slide rail angle steel local structure enlarged diagram of Fig. 4.
Wherein description of reference numerals is as follows:
131 groups of ribs 132 of ladder
The body of rod 133 luffing mechanisms 14
Tower top post 17 cable wires 171
Lifting gravity G tractive force F
Tower body A stock cage B
Cable wire B1 swing type mechanism C
Swing arm D amplitude variation trolley E
The second angle steel 202 flat parts 21
Group is established 211 outsides 212, hole
Group is established 221 outsides 222, hole
Slide rail angle steel 30 boards 31
The first 310 groups of boards are established hole 311
Outside 312 inner faces 313
The outside 322 groups establish hole 321
Group rib 40 diagonal ribs 50
Strengthening rib 60 connecting elements 70
Node P1 node P2
Node P3
Tractive force F lifting gravity G
The specific embodiment
Below in conjunction with accompanying drawing and the specific embodiment, the present invention is further detailed explanation.
At first, please with Fig. 2, coordinate Fig. 3 A to Fig. 3 C to see it, the structure schematic appearance that shows the boom structure of tower crane provided by the invention, this tower crane mainly has a tower body A, tower body A outer cover is provided with a stock cage B and bottom is provided with the C of single-revolution mechanism, stock cage B bottom one side is provided with a horizontally extending swing arm D, and swing arm D downside is provided with an amplitude variation trolley E.Swing arm D is the triangular prism structure, and mainly comprises extension in the same direction and two angle steel 20 that connect with stock dragon B group, and a slide rail angle steel 30 is established amplitude variation trolley E for group.Having 60 groups, a plurality of groups of ribs 40, a plurality of diagonal rib 50 and a plurality of strengthening rib between described two angle steel 20 and slide rail angle steel 30 connects.
Two angle steel 20, each angle steel 20 is that cross section is L shaped steel angle structure, be formed with a flat part 21 and a swash plate section 22, two angle steel 20 are located at stock cage B mono-side by corresponding parallel group of its flat part 21, two angle steel 20 are provided with a plurality of node P1, P2 at correspondence position, and the corresponding a plurality of node P1 of its flat part 21 and swash plate section 22 thereof, P2 place are provided with a plurality of groups and establish hole 211,221; Wherein, defining two angle steel 20 is one first angle steel 201 and one second angle steel 202.
Slide rail angle steel 30 is the general Y-shaped steel angle structures in cross section, slide rail angle steel 30 is formed with two boards 31,32 and a slide rail section 33, parallel two angle steel 20 of slide rail angle steel 30 arrange, and two boards 31,32 are corresponding to the swash plate section 22 of two angle steel 20, the corresponding angle steel 20 node P1 of slide rail angle steel 30, P2 position are provided with a node P3 at every two angle steel node P1, P2 place, and the corresponding a plurality of node P3 of two boards 31,32 place is provided with a plurality of groups and establishes hole 311,321; The board 31 that defines corresponding the first angle steel 201 is one first board 310, and the board 31 of corresponding the second angle steel 202 is one second board 320.
A plurality of groups of ribs 40 are that cross section is configured as L shaped steel angle structure, 40 groups of flat parts 21 that connect two angle steel 20 of group rib, and respectively organize node P1 and the node P2 that rib 40 connects two angle steel 20 correspondence positions, be located between two flat parts 21.As shown in Fig. 3 A to Fig. 3 C, each group of organizing corresponding the first angle steel 201 flat parts 21 of rib 40 1 ends is established hole 211 and is arranged, the group of corresponding the second angle steel 202 flat parts 21 of the other end is established hole 211 and is arranged, and two groups are established on corresponding node P1, the P2 that hole 211 is positioned at the first angle steel 201 and the second angle steel 202.
A plurality of diagonal ribs 50 are that cross section is configured as L shaped steel angle structure, group connects the flat part 21 of two angle steel 20, each diagonal rib 50 diagonal angles are located between two adjacent sets ribs 40 and two angle steel 20, and the diagonal rib 50 that is adjacent respectively of the two ends of each diagonal rib 50 is located at the node P1/P2 of same angle steel 20.As shown in Fig. 3 A to Fig. 3 C, each diagonal rib 50 1 ends are established hole 211 with one group of rib 40 wherein with the group that is installed in the first angle steel 201 flat parts 21, the other end and another group rib 40 is established hole 211 with the group that is installed in the second angle steel 202 flat parts 21, and the two ends of each diagonal rib 50 are adjacent diagonal rib 50 and are fixedly arranged on same group and establish hole 211.
As shown in Figures 4 and 5,21 groups of connecting elements 70 of establishing hole 211 quantity of corresponding first, second angle steel 201,202 flat part place group rib 40, diagonal rib 50 and lock to tie in the group of its setting and establish hole 211.
A plurality of strengthening ribs 60, be connected between the swash plate section 22 of two boards 31,32 of slide rail angle steel 30 and the angle steel 20 corresponding with it, and two adjacent slide rail angle steel 30 node P3 and first, second angle steel 201,202 node P1, P2 between it respectively are provided with two strengthening ribs 60.
As shown in Fig. 3 A to Fig. 3 C, strengthening rib 60 is located between the swash plate section 22 of the first board 310 of slide rail angle steel 30 and the first angle steel 201, and between the swash plate section 22 of the second board 320 of slide rail angle steel 30 and the second angle steel 202, wherein two adjacent sets of the first board 310 are established 201 groups, hole 311 and the first angle steel between it and are established hole 221 and be provided with two adjacent sets that corresponding the first board 310 adjacent sets of two strengthening rib 60, the second boards 320 establish hole 311 and establish 202 groups, hole 321 and the second angle steel between it and establish hole 221 and be provided with two strengthening ribs 60.
As shown in Fig. 4 and Fig. 6,31,32 groups of corresponding slide rail angle steel 30 boards are established the group that connecting element 70 that 22 groups, hole 311,321 and two angle steel 20 swash plate sections establish hole 221 quantity places strengthening rib 60 and be locked in its setting and are established hole 221,311,321.
The above is embodiment of the present invention primary member and configuration explanation thereof, as for operating mode and the effect thereof of preferred embodiment of the present invention, does following explanation.
Please consult again shown in Fig. 2, the horizontal hoisting operation operating mode of the boom structure of tower crane of the present invention, mainly to drive tower body A and swing arm D coaxial rotation by swing type mechanism C simultaneously, make swing arm D swing on horizontal surface, make object pass through the slide rail section 33 single track operations of amplitude variation trolley E along the slide rail angle steel 30 of swing arm D, change the position of object on horizontal surface and complete horizontal hoisting operation.
Please with Fig. 3 B, Fig. 3 C cooperation, consult Fig. 4 to Fig. 6 and see it, the connecting structure of group rib 40, diagonal rib 50 and the strengthening rib 60 of swing arm D of the present invention is described.As shown in Figure 4, two flat parts 21 of two angle steel 20 respectively are formed with an outside 212 and an inner face 213, two swash plate sections 22 respectively are formed with an outside 222 and an inner face 223, and two boards 31,32 of slide rail angle steel 30 respectively are formed with an outside 312,322 and an inner face 313,323, wherein, as shown in Fig. 3 C, Fig. 4, Fig. 5, outside 212 and the inner face 213 of two angle steel 20 flat parts 21 is located at a plurality of groups of rib 40 intervals; Each diagonal rib 50 diagonal angles are located between the flat part 21 and two adjacent sets ribs 40 of two angle steel 20, and a plurality of diagonal rib 50 intervals are located on the outside 212 and inner face 213 of two flat parts 21.
As shown in Fig. 3 B, Fig. 4, Fig. 6, two 60, the ribs of strengthening of respectively being located at same angle steel 20 node P1, P2 are located at respectively outside 222,312,322 and the inner face 223,313,323 of angle steel 20 swash plate sections 22 and slide rail angle steel 30 boards 31,32, and be located between 222,312,322 a plurality of strengthening ribs 60 of outside and be arrangement in parallel, be located between a plurality of strengthening ribs 60 of inner face 223,313,323 and be arrangement in parallel.
In sum, the boom structure of tower crane of the present invention is by the above-mentioned swing arm D formed with steel angle structure, significantly promoted swing arm D overall construction intensity, and as shown in Fig. 2, Fig. 3 A, swing arm D with plane upward pointed cone kenel down be horizontally disposed with, the tractive force F of stock cage B top cable wire B1 is on average disperseed by two angle steel 20, and the lifting gravity G that swing arm D bears is dispersed on the strengthening rib 60 that is the arrangement of triangle trellis by slide rail angle steel 30, the stress that has effectively disperseed swing arm D to bear, reach the purpose that increases the swing arm load-carrying ability.
Claims (7)
1. the boom structure of a tower crane, is characterized in that, comprising:
Two angle steel, each angle steel is formed with a flat part and a swash plate section, and two angle steel are provided with a plurality of nodes at correspondence position;
One slide rail angle steel, parallel described two angle steel settings, described slide rail angle steel is formed with two boards and a slide rail section, and the corresponding two angle steel node locations of described slide rail angle steel are provided with a node at every two angle steel Nodes;
A plurality of groups of ribs, be connected to the flat part of described two angle steel, and respectively organize rib and connect node and the node of two angle steel correspondence positions and be located between described two flat parts;
A plurality of diagonal ribs, group connects the flat part of described two angle steel, and each diagonal rib diagonal angle is located between two adjacent sets ribs and two angle steel, and the diagonal rib that is adjacent respectively of the two ends of each diagonal rib is located at the node of same angle steel;
A plurality of strengthening ribs, be connected between the swash plate section of two boards of described slide rail angle steel and the angle steel corresponding with it, and two adjacent slide rail angle steel nodes and two angle steel nodes between it respectively are provided with two strengthening ribs.
2. the boom structure of tower crane as claimed in claim 1, is characterized in that,
Two angle steel, corresponding its Nodes of its flat part and swash plate section is provided with a plurality of groups and establishes hole, and defining described two angle steel is one first angle steel and one second angle steel;
The slide rail angle steel, corresponding its Nodes of two boards is provided with a plurality of groups and establishes hole, and the board of corresponding described the first angle steel of definition is one first board, and the board of corresponding described the second angle steel is one second board;
A plurality of groups of ribs, the group of corresponding described the first angle steel flat part of an end is established hole and is arranged, and the group of corresponding the second angle steel flat part of the other end is established hole and is arranged, and described two groups are established hole and are positioned on the corresponding node of the first angle steel and the second angle steel;
A plurality of diagonal ribs, each diagonal rib is located between two adjacent group ribs, each diagonal rib one end is established hole with one group of rib wherein with the group of being located at the first angle steel flat part, the other end and another group rib are established hole with the group of being located at the second angle steel flat part, and the two ends of each diagonal rib are adjacent diagonal rib and are located at same group and establish hole, the connecting element that corresponding first, second angle steel flat part group is established hole number places described group of rib, diagonal rib lock and ties in the group of its setting and establish hole;
A plurality of strengthening ribs, be located between the swash plate section of the first board of described slide rail angle steel and the first angle steel, and between the swash plate section of the second board of slide rail angle steel and the second angle steel, wherein two adjacent sets of described the first board are established the first angle steel group between Kong Yuqi and are established hole and be provided with two strengthening ribs, two groups of second angle steel groups of establishing between Kong Yuqi that corresponding the first board adjacent sets is established second board in hole are established hole and are provided with two strengthening ribs, corresponding described slide rail angle steel board group is established the group that connecting element that hole and two angle steel swash plate section groups establish hole number places described strengthening rib and be locked in its setting and is established hole.
3. the boom structure of tower crane as claimed in claim 1, is characterized in that, the flat part of described two angle steel respectively is formed with an outside and an inner face, and outside and the inner face of flat part is located at described group of rib interval.
4. the boom structure of tower crane as claimed in claim 1, it is characterized in that, the flat part of described two angle steel respectively is formed with an outside and an inner face, described a plurality of diagonal ribs diagonal angle is located between two flat parts and two adjacent sets ribs, and described a plurality of diagonal ribs interval is located on the outside and inner face of two flat parts.
5. the boom structure of tower crane as claimed in claim 1, it is characterized in that: the swash plate section of described two angle steel respectively is formed with an outside and an inner face, two boards of described slide rail angle steel respectively are formed with an outside and an inner face, the two strengthening ribs of respectively being located at same angle steel node are located at respectively outside and the inner face of described angle steel swash plate section and described slide rail angle steel board, and be located between a plurality of strengthening ribs of outside and be arrangement in parallel, be located between a plurality of strengthening ribs of inner face and be arrangement in parallel.
6. the boom structure of tower crane as claimed in claim 1, it is characterized in that: described a plurality of groups of ribs, a plurality of diagonal rib and a plurality of strengthening rib are configured as steel angle structure.
7. the boom structure of tower crane as claimed in claim 1, it is characterized in that: described swing arm mainly is located at a tower crane, described tower crane has a tower body, described tower body outer cover is provided with a stock cage and bottom is provided with single-revolution mechanism, described swing arm is located at stock cage one side by two angle steel horizontal group, and the slide rail section group of described slide rail angle steel is established an amplitude variation trolley.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012101576974A CN103420283A (en) | 2012-05-18 | 2012-05-18 | Swing arm structure of tower crane |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012101576974A CN103420283A (en) | 2012-05-18 | 2012-05-18 | Swing arm structure of tower crane |
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| Publication Number | Publication Date |
|---|---|
| CN103420283A true CN103420283A (en) | 2013-12-04 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012101576974A Pending CN103420283A (en) | 2012-05-18 | 2012-05-18 | Swing arm structure of tower crane |
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Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2066388A (en) * | 1932-09-17 | 1937-01-05 | Firm Edward G Budd Mfg Company | Construction of metal girders |
| DE976777C (en) * | 1953-04-25 | 1964-04-23 | Donges Stahlbau Ges Mit Beschr | Welded three-dimensional truss |
| FR1560103A (en) * | 1968-04-03 | 1969-03-14 | ||
| FR2049423A5 (en) * | 1969-06-10 | 1971-03-26 | Edilmac Spa | |
| CN1103378A (en) * | 1993-06-22 | 1995-06-07 | 波泰股份有限公司 | Apparatus and method for assembly of arm of crane |
| EP0928769A1 (en) * | 1998-01-12 | 1999-07-14 | Potain | Jib element for tower crane |
| KR20080096143A (en) * | 2007-04-27 | 2008-10-30 | 케이엔에프중공업주식회사 | Jib for tower crane |
| CN202687821U (en) * | 2012-05-18 | 2013-01-23 | 李宜君 | Movable arm structure of tower crane |
-
2012
- 2012-05-18 CN CN2012101576974A patent/CN103420283A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2066388A (en) * | 1932-09-17 | 1937-01-05 | Firm Edward G Budd Mfg Company | Construction of metal girders |
| DE976777C (en) * | 1953-04-25 | 1964-04-23 | Donges Stahlbau Ges Mit Beschr | Welded three-dimensional truss |
| FR1560103A (en) * | 1968-04-03 | 1969-03-14 | ||
| FR2049423A5 (en) * | 1969-06-10 | 1971-03-26 | Edilmac Spa | |
| CN1103378A (en) * | 1993-06-22 | 1995-06-07 | 波泰股份有限公司 | Apparatus and method for assembly of arm of crane |
| EP0928769A1 (en) * | 1998-01-12 | 1999-07-14 | Potain | Jib element for tower crane |
| KR20080096143A (en) * | 2007-04-27 | 2008-10-30 | 케이엔에프중공업주식회사 | Jib for tower crane |
| CN202687821U (en) * | 2012-05-18 | 2013-01-23 | 李宜君 | Movable arm structure of tower crane |
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Effective date of abandoning: 20160608 |
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