CN202245833U - Connection mechanism of flat-top tower crane head and boom - Google Patents
Connection mechanism of flat-top tower crane head and boom Download PDFInfo
- Publication number
- CN202245833U CN202245833U CN2011203871523U CN201120387152U CN202245833U CN 202245833 U CN202245833 U CN 202245833U CN 2011203871523 U CN2011203871523 U CN 2011203871523U CN 201120387152 U CN201120387152 U CN 201120387152U CN 202245833 U CN202245833 U CN 202245833U
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- boom
- head
- arm
- tie
- connection mechanism
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Abstract
The utility model discloses a connection mechanism of a flat-top tower crane head and a boom. The head and the boom are connected by corresponding upper and lower ear plates. The connection mechanism is characterized in that a pulling plate is arranged between the upper connecting ear plates of the head and the boom, is of two-splint structure and is provided with through holes at the two ends; the upper ear plate of the head and the upper ear plate of the boom are clamped between the two splints of the pulling plate and are respectively connected with the through holes at the two ends of the pulling plate by hinge pins. The connection mechanism has the following obvious characteristics: under the condition of fully ensuring structure safety, the length of the top chord of the boom is reduced, the rigidity of the boom is enhanced, the degree of stress concentration is reduced and the stress state of the boom is improved, and the anti-fatigue requirement is met; the short pulling plate is adopted between the tower top and the upper chord of the boom so that the angle between the boom and the ground level can be accurately controlled during manufacturing, thus ensuring the boom to always work in an optimum condition; and the connection mechanism has simple structure, improves the stress state of the boom, is convenient to install and has beautiful appearance.
Description
One, affiliated technical field
The utility model relates to the structure design of tower crane, particularly the bindiny mechanism of tower machine tower head and elevator boom rack.
Two, background technology
At present, on flat-head tower crane tower head and elevator boom rack connection structure, the domestic type of attachment that generally adopts is that tower head directly is connected through bearing pin with elevator boom rack, and the advantage of this connection mode is simple in structure, quick and easy for installation; But it is not good that weak point is a strained condition, mainly shows:
A, tower head and elevator boom rack junction, framing member quantity is many, welding stress concentration;
The length of b, elevator boom rack top boom is big, and rigidity is low, and the bearing load distortion is big;
Comprehensive above-mentioned situation makes that the local parts of connecting portion of tower head and elevator boom rack are stressed bigger, influences the safety performance of tower machine.
Three, summary of the invention
The bindiny mechanism that the purpose of the utility model provides a kind of cab over type tower machine tower head and elevator boom rack can improve the elevator boom rack strained condition, improves tower machine safety performance.
The technical scheme that the utility model adopts is: the bindiny mechanism of cab over type tower machine tower head and elevator boom rack; Tower head is connected with the cooresponding upper and lower otic placode of elevator boom rack green phase; The utility model has arm-tie between the upper ear plate of tower head and elevator boom rack; Arm-tie is the double plate structure, at the arm-tie two ends open-work is arranged, and the upper ear plate of tower head and the upper ear plate of elevator boom rack are clipped between the double plate of arm-tie and are connected with bearing pin with the open-work at arm-tie two ends respectively.
The utility model has not only been inherited the advantage of existing type of attachment, but also has following distinguishing feature:
A, arm-tie have strengthened the rigidity of elevator boom rack, and have reduced the degree of stress concentration fully guaranteeing to reduce the length of elevator boom rack top boom under the situation of structural safety, improve its strained condition; Simple in structure, rod member is few, and node is few, meets the requirement of antifatigue.
B, satisfy the requirement of cat head, equilibrium arm structure; Adopt short arm-tie between cat head and elevator boom rack wind up, the angle that makes elevator boom rack and ground level is accuracy control in the mill, and the assurance elevator boom rack is all the time in optimum regime work.
C, arm-tie production technology are simple, and light and handy, the attractive in appearance smoothness of profile is harmonious, unified with flat-head tower crane.
The utility model version is simple, and it is stressed to improve elevator boom rack, and is easy for installation, good looking appearance.
Four, description of drawings
Fig. 1 is the be connected scheme drawing of existing cab over type tower machine tower head with elevator boom rack;
Fig. 2 is the A portion enlarged drawing of Fig. 1;
Fig. 3 is the structural representation of the utility model;
Fig. 4 is the B portion enlarged drawing of Fig. 3;
Fig. 5 is the decomposition chart of the utility model;
Fig. 6 is the C portion enlarged drawing of Fig. 5;
Fig. 7 is that the installation of the utility model connects scheme drawing;
Fig. 8 is the D portion enlarged drawing of Fig. 7.
Five, the specific embodiment
The utility model is to connect the arm-tie 3 that increases a weak point between the otic placode on the tower head 1 of cab over type tower machine and the elevator boom rack 2; Gusset 4 is arranged between the double plate of arm-tie 3; Through-hole position has fixed mount 5 in the double plate outside; On double plate, the radius stay of connection 6 arranged respectively with following, gusset 4, fixed mount 5 and be connected radius stay 6 all with the double plate weld together.Gusset 4 can guarantee the spacing between arm-tie 3 double plates, and it can be linked to each other with tower head and elevator boom rack; Fixed mount 5 is used for spring cotter 8 and pins bearing pin 7; Upper and lower connection radius stay 6 makes things convenient for elevator boom rack 2 under installation and disassembly status, to keep reasonable range.
Mounting means: after on the ground elevator boom rack 2 being assembled into integral body; Utilize the hoist cable elevator boom rack 2 of slinging; Winch to tower head behind the ready to balance, elevator boom rack 2 is connected with (being connected on the tower head 1) arm-tie 3 and, again the otic placode of elevator boom rack 2 lower edges is put into the otic placode of tower head 1 with spring cotter 8 locking with bearing pin 7; Be positioned at elevator boom rack 2 connections on the tower head 1 with axle 9 then, and with spring cotter 8 lockings.
Claims (2)
1. the bindiny mechanism of cab over type tower machine tower head and elevator boom rack; Tower head (1) is connected with the cooresponding upper and lower otic placode of elevator boom rack (2) green phase; It is characterized in that: between the upper ear plate of tower head (1) and elevator boom rack (2), arm-tie (3) is arranged; Arm-tie (3) is the double plate structure, at arm-tie (3) two ends open-work is arranged, and the upper ear plate of the upper ear plate of tower head (1) and elevator boom rack (2) is clipped between the double plate of arm-tie (3) and is connected with bearing pin (7) with the open-work at arm-tie (3) two ends respectively.
2. the bindiny mechanism of cab over type tower machine tower head according to claim 1 and elevator boom rack; It is characterized in that: gusset (4) is arranged between the double plate of arm-tie (3); Through-hole position has fixed mount (5) in the double plate outside; On double plate, the radius stay of connection (6) arranged respectively with following, gusset (4), fixed mount (5) and be connected radius stay (6) all with the double plate weld together.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203871523U CN202245833U (en) | 2011-10-12 | 2011-10-12 | Connection mechanism of flat-top tower crane head and boom |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203871523U CN202245833U (en) | 2011-10-12 | 2011-10-12 | Connection mechanism of flat-top tower crane head and boom |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202245833U true CN202245833U (en) | 2012-05-30 |
Family
ID=46107106
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011203871523U Expired - Fee Related CN202245833U (en) | 2011-10-12 | 2011-10-12 | Connection mechanism of flat-top tower crane head and boom |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202245833U (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103171982A (en) * | 2013-04-18 | 2013-06-26 | 云南冶金昆明重工有限公司 | Hinge assembly of flat-top tower crane |
| CN103332609A (en) * | 2013-07-15 | 2013-10-02 | 中联重科股份有限公司 | Tower head and tower crane provided with tower head |
| CN103508333A (en) * | 2012-06-21 | 2014-01-15 | 徐工集团工程机械股份有限公司 | Plate pulling device and crane |
| CN103910291A (en) * | 2014-03-11 | 2014-07-09 | 徐州建机工程机械有限公司 | Connection structure of crane arm with flatted tower top |
| CN105439010A (en) * | 2016-01-11 | 2016-03-30 | 徐工集团工程机械股份有限公司 | Composite connector and cantilever crane |
| CN106495031A (en) * | 2016-11-29 | 2017-03-15 | 徐州建机工程机械有限公司 | A kind of derrick crane tower-body standard section bindiny mechanism |
| CN108313898A (en) * | 2018-02-10 | 2018-07-24 | 韶关学院 | A kind of truss-like turntable and engineering machinery |
-
2011
- 2011-10-12 CN CN2011203871523U patent/CN202245833U/en not_active Expired - Fee Related
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103508333A (en) * | 2012-06-21 | 2014-01-15 | 徐工集团工程机械股份有限公司 | Plate pulling device and crane |
| CN103508333B (en) * | 2012-06-21 | 2015-11-25 | 徐工集团工程机械股份有限公司 | Plate pulling device and hoisting crane |
| CN103171982A (en) * | 2013-04-18 | 2013-06-26 | 云南冶金昆明重工有限公司 | Hinge assembly of flat-top tower crane |
| CN103332609A (en) * | 2013-07-15 | 2013-10-02 | 中联重科股份有限公司 | Tower head and tower crane provided with tower head |
| CN103332609B (en) * | 2013-07-15 | 2015-12-02 | 中联重科股份有限公司 | Tower head and there is its tower crane |
| CN103910291A (en) * | 2014-03-11 | 2014-07-09 | 徐州建机工程机械有限公司 | Connection structure of crane arm with flatted tower top |
| CN105439010A (en) * | 2016-01-11 | 2016-03-30 | 徐工集团工程机械股份有限公司 | Composite connector and cantilever crane |
| CN106495031A (en) * | 2016-11-29 | 2017-03-15 | 徐州建机工程机械有限公司 | A kind of derrick crane tower-body standard section bindiny mechanism |
| CN108313898A (en) * | 2018-02-10 | 2018-07-24 | 韶关学院 | A kind of truss-like turntable and engineering machinery |
| CN108313898B (en) * | 2018-02-10 | 2020-06-12 | 韶关学院 | Truss type rotary table and engineering machinery |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Beijing Yong Mao construction machine Manufacturing Co., Ltd Assignor: Fushun Yongmao Construction Machinery Co., Ltd. Contract record no.: 2013990000013 Denomination of utility model: Connection mechanism of flat-top tower crane head and boom Granted publication date: 20120530 License type: Exclusive License Record date: 20130111 |
|
| LICC | Enforcement, change and cancellation of record of contracts on the licence for exploitation of a patent or utility model | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120530 Termination date: 20171012 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |