CN202317514U - Assembling tool equipment of balance arm of tower crane - Google Patents
Assembling tool equipment of balance arm of tower crane Download PDFInfo
- Publication number
- CN202317514U CN202317514U CN2011204303503U CN201120430350U CN202317514U CN 202317514 U CN202317514 U CN 202317514U CN 2011204303503 U CN2011204303503 U CN 2011204303503U CN 201120430350 U CN201120430350 U CN 201120430350U CN 202317514 U CN202317514 U CN 202317514U
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- frock
- arm joint
- clamping plate
- arm
- engaging lug
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Abstract
The utility model discloses assembling tool equipment of a balance arm of a tower crane. The assembling tool equipment comprises first tool equipment of connecting ear bases clamped on a first arm section, and second tool equipment of connecting ear plates clamped on a second arm section. Through using the assembling tool equipment, the first arm section can be smoothly and freely connected with the second arm section by adopting a pin shaft.
Description
Technical field
The utility model relates to the crane field, is specifically related to a kind of assembly unit frock of derrick crane counter-jib.
Background technology
Derrick crane, promptly tower machine (tower crane) is the common crane gear in construction site, is mainly used in the vertical and horizontal feed of material in the housing construction.Derrick crane can be divided into polytype, and last rotary derrick crane wherein is common a kind of, is characterized in that body of the tower does not rotate, and is installed in the slew gear on body of the tower top, is supporting crane arm, the counter-jib at tower machine top.Through the revolution of slew gear, the crane arm at tower machine top, counter-jib can be done omnibearing rotation around the body of the tower center line.
Go up rotary derrick crane and need set balance weight, with the lifting moment that rises of balance crane arm one side, counter-jib is in order to the supporting balance weight, and the counter-jib of going up rotary derrick crane is a very important part in the whole tower machine.For the convenience of making and transporting, the length of counter-jib is made into two joints usually after exceeding certain value, and counter-jib illustrated in figures 1 and 2 is made up of the first arm joint, second arm joint.
The first arm joint 1, second arm joint 2 is plane framework formula structure.Framework two long sides are the 32b channel-section steel, and two wide sides are the 25b channel-section steel, constitute the main body of framework.The belly of the first arm joint is the angle steel of the 63X5 of levels arranged crosswise, and the belly two ends of second arm joint are the angle steel of the 63X5 of levels arranged crosswise, and middle for waiting to set level the space of weight, two 25b channel-section steels have vertically been arranged in the both sides, space.Angle steel, channel-section steel that the first arm joint, second arm joint belly are arranged play the support reinforcing effect to framework.The first arm joint front end be the engaging lug seat that is connected with slew gear, and the rear end be and the engaging lug seat of second arm joint front end, and it is to save the connection otic placode that the rear end is connected with the first arm that second arm saves front end, and it interconnects and all adopts the bearing pin connection.
The first arm joint and second arm save is manufactured with following key factor:
In case first, the engaging lug seat 3 of the first arm joint does not reach corresponding precision with otic placode 4 rigging positions that are connected of second arm joint; When connecting the first arm joint with second arm joint through bearing pin, thus owing to engaging lug seat and the dislocation that is connected otic placode can not be smooth connect with bearing pin.
The second, the counter-jib that is formed by connecting at the first arm joint, second arm joint is the high-altitude bearing carrier that is supporting balance weight.The welding of member is directly connected to the safety and the serviceability of tower machine.So when making the first arm joint, second arm joint, weldquality must reach designing requirement.
Reaching above-mentioned requirements, is to adopt the method for directly welding that the engaging lug seat is welded on the first arm joint at present, will connect otic placode and be welded on second arm joint; In addition; Weld seam directly is placed on the mounting plate and welds owing to have no the effect of frock, present preparation method be difficult to reach above-mentioned requirements (the arm joint mainly is the structural member of the plane framework formula that is made up of shaped steel; The length L 1 of the first arm joint reaches 5.7 meters; The length L 2 of second arm joint reaches 7.4 meters, and framework can not guarantee the mutual connection of arm joint through directly being prone to produce distortion after the assembly unit welding.Because the residing position of welding point in the framework is undesirable, be not easy to adopt the downhand welding welding method welding that is prone to guarantee welding quality in addition, so also be difficult to guarantee the weldquality of arm joint).
Summary of the invention
To above-mentioned technical problem, the purpose of the utility model is to provide a kind of assembly unit frock of derrick crane counter-jib, smooth in the time of can guaranteeing that through the utility model the first arm joint is connected with second arm joint employing bearing pin.
The technical scheme that realizes the utility model purpose is following:
The assembly unit frock of derrick crane counter-jib may further comprise the steps:
The assembly unit frock of derrick crane counter-jib comprises first frock of the engaging lug seat on the clamping the first arm joint and second frock of the connection otic placode on clamping second arm joint.
Adopted such scheme; Through first frock; The engaging lug seat that can make the first arm joint has obtained good location about in first frock; After engaging lug seat and the first arm joint assembly unit welding, just can not produce the problem of dislocation about the engaging lug seat yet, thereby guarantee the engaging lug seat of the first arm joint and being connected freely of tower machine rotating mechanism.The connection otic placode that can make second arm joint through second frock has obtained good location about in second frock, connect otic placode and second arm joint assembly unit welding after, also just can not produce the problem of dislocation about the connection otic placode.The engaging lug seat that then the first arm is saved the rear end connects with the good otic placode that is connected of welding, and the engaging lug seat that makes the first arm joint go up the other end has also obtained good location.The arm joint that adopts the frock of the utility model to assemble, arm joint and tower machine rotating mechanism and arm joint with all can realize smooth being connected between arm saves.
Description of drawings
Fig. 1 is the structural representation of the first arm joint;
Fig. 2 is the structural representation of second arm joint;
Fig. 3 is the structural representation of first frock;
Fig. 4 is that the A of Fig. 3 is to view;
Fig. 5 is the structural representation of second frock;
Fig. 6 is that the B of Fig. 5 is to view;
In the accompanying drawing, 10 are the first arm joint, and 11 is the engaging lug seat, and 12 is the engaging lug seat; 20 is second arm joint, and 21 is the engaging lug seat board, and 30 is first frock, and 31 is first base; 32 is the first left clamping plate, and 33 is the first right clamping plate, and 34 is first bearing pin, and 40 is second frock; 41 is second base, and 42 is first pair of clamping plate, and 43 is second pair of clamping plate, and 44 is second bearing pin.
The specific embodiment
With reference to Fig. 3 to Fig. 6; The assembly unit frock of the derrick crane counter-jib of the utility model; When making the cuboid at arm joint middle part; When carrying out channel-section steel, angle steel, steel plate cutting, all adopted machinery or numerical control cutting method blanking, thereby the size that guarantees institute's blanking has all reached Design Requirement Drawing.After the blanking, to all shaped steel, steel plate, particularly the 32b channel-section steel to framework two long sides has all carried out conscientious rectification, thereby has guaranteed all glacing flatness, flatnesses of materials and parts down.On the higher platform for lining of flatness precision, whether each part of assembly unit tack welding middle part cuboid is measured the Diagonal Dimension of checking cuboid and is equated then.Just correct if Diagonal Dimension has not wait slightly, guarantee that the cuboid at arm joint middle part is a correct cuboid, guarantee us after assembly unit is welded to connect ear seat, otic placode, the problem of dislocation before and after ear seat, the otic placode of arm joint both sides can not produce.If dislocation before and after the ear seat of arm joint both sides, the otic placode, the linkage function of arm joint will lose efficacy.For the linkage function that guarantees the arm joint did not lose efficacy, it is also not all right only to guarantee not misplace before and after the engaging lug seat, otic placode of arm joint both sides, and will guarantee that arm saves about the engaging lug seat of both sides, otic placode and do not misplace.With the engaging lug seat of simulation the first arm joint 10 and second arm joint 20, is connected the actual connection state of otic placode, the first arm of processing is saved 10 and second arm saves 20 and assemble through the frock of following structure:
The frock of the utility model comprises first frock 30 of the engaging lug seat on the clamping the first arm joint, and second frock 40 of the connection otic placode on clamping second arm joint.First frock comprises first base 31; The upper surface of first base 31 is symmetrically arranged with first clamping device; Each clamping device is made up of first left clamping plate 32, the first right clamping plate 33 and first bearing pin 34; One end of the first left clamping plate and the first right clamping plate is fixed on the upper surface of base, and the two ends of first bearing pin are supported on respectively in the axis hole on the first left clamping plate and the first right clamping plate.Second frock 40 comprises second base 41; The upper surface of second base 41 is symmetrically arranged with second clamping device; Each clamping device is made up of first pair of clamping plate 42, the second pair of clamping plate 43 and second bearing pin 44; Every pair of clamping plate are formed by two block plates, and an end of first pair of clamping plate 42 and second pair of clamping plate 43 is fixed on the upper surface of base, and the two ends of first bearing pin are supported on respectively in the axis hole on the first pair of clamping plate and the second pair of clamping plate.
After making above-mentioned first frock 30 and second frock 40, adopt following steps to the engaging lug seat with is connected otic placode and saves 10 and second arm with the first arm respectively and save 20 and assemble:
Step 1 after will being used to be assemblied in two engaging lug seat 11 clampings that the first arm saves 10 1 ends and being positioned on first frock 30, is welded two engaging lug seats on first frock respectively with the first arm joint 10, after welding is good, remove first frock.Detailed process is: meet the first arm at the size A that guarantees first frock 30 and save the following in advance of 10 design size A; 33 on machined frock light plate first left clamping plate 32, first right clamping plate open a grade size C; Make its design size C that is a bit larger tham engaging lug seat 11, and processing 2-￠ d axis hole.After 30 machineds of first frock were accomplished, manufactured 2 the engaging lug seats 11 that the first arm saved 10 front ends were respectively charged between the first left clamping plate 32 and the first right clamping plate 33, inserted bearing pin 34.On platform for lining, engaging lug seat in first frock 11 and the first arm that the assembly unit location welds are saved 10 cuboid then, assembly unit welds together, and removes frock, and arm saves the assembly unit welding job of 1 front end ear seat and accomplishes.Owing to adopted first frock; The engaging lug seat 11 that the first arm saves 10 front ends has obtained good location about in frock; After engaging lug seat 11 welds with the cuboid assembly unit; Just can not produce the problem of dislocation about the engaging lug seat yet, thereby guarantee that the first arm saves being connected freely of 10 front end ear seats and tower machine rotating mechanism.
Step 2 after will being used to be assemblied in four engaging lug seat board 21 clampings that second arm saves 20 1 ends and being positioned on second frock, connects otic placodes 21 with four on second frock and welds with second arm joint respectively, after welding is good, removes first frock.Detailed process is: in the size that guarantees first frock 40; Be under the prerequisite of the first arm joint 10 and 20 major dimension that are connected of second arm joint; Dimension D between first pair of clamping plate of machined 42, second pair of clamping plate 43 two sides; Make itself and second arm save dimension D equivalence in 2, and under the prerequisite that guarantees size B, processing 4-￠ d pin-and-hole.After the machined, second arm is saved 4 of 20 front ends connect that otic placodes 21 are contained between first pair of clamping plate 42, between the second pair of clamping plate 43, and plug bearing pin and fix with nut.On platform for lining, 4 connection otic placodes, 21 assembly units that are contained on the frock are welded on the cuboid of second arm joint 20, welding removes frock after accomplishing, thereby accomplishes the assembly unit welding job of connection otic placode 21 on second arm joint 20.Connection otic placode 21 on second arm joint 20 of assembly unit according to said method welding can not produce otic placode about dislocation.
Step 3 after will being used to be assemblied in four engaging lug seats 12 that the first arm saves 10 other ends and connecting a connection otic placode 21 that is welded on second arm joint through bearing pin is corresponding respectively, is weldingly fixed on four engaging lug seats 12 on the first arm joint.Detailed process is: the first arm joint 10 is abutted against with the front ends of second arm joint 20 be placed on the platform for lining, 4 engaging lug seats 12 that the first arm saved 10 rear ends are placed between the connection otic placode 21 of second arm joint 20.Insert bearing pin in the pin-and-hole on the engaging lug seat 12 of the connection otic placode 21 of second arm joint 20 and the first arm joint 10, and tighten together, thereby the engaging lug seat that makes the first arm save 10 rear ends has obtained good location.4 engaging lug seats 12 cuboid with the first arm joint 1 is welded together, remove bearing pin, so far the first arm saves the engaging lug seat of 10 front and back ends and the assembly unit welding job of the otic placode that second arm saves 20 front ends is all accomplished.The arm joint that adopts said method to make, the first arm joint 10 can both be realized smooth being connected with tower machine rotating mechanism and arm internode.
Claims (3)
1. the assembly unit frock of a derrick crane counter-jib is characterized in that: comprise first frock of the engaging lug seat on the clamping the first arm joint, and second frock of the connection otic placode on clamping second arm joint.
2. the assembly unit frock of derrick crane counter-jib according to claim 1; It is characterized in that; Said first frock comprises first base, and the upper surface of first base is symmetrically arranged with first clamping device, and each clamping device is made up of the first left clamping plate, the first right clamping plate and first bearing pin; One end of the first left clamping plate and the first right clamping plate is fixed on the upper surface of base, and the two ends of first bearing pin are supported on respectively in the axis hole on the first left clamping plate and the first right clamping plate.
3. the assembly unit frock of derrick crane counter-jib according to claim 1; It is characterized in that; Said second frock comprises second base, and the upper surface of second base is symmetrically arranged with second clamping device, and each clamping device is made up of first pair of clamping plate, the second pair of clamping plate and second bearing pin; One end of first pair of clamping plate and second pair of clamping plate is fixed on the upper surface of base, and the two ends of first bearing pin are supported on respectively in the axis hole on the first pair of clamping plate and the second pair of clamping plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204303503U CN202317514U (en) | 2011-11-03 | 2011-11-03 | Assembling tool equipment of balance arm of tower crane |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204303503U CN202317514U (en) | 2011-11-03 | 2011-11-03 | Assembling tool equipment of balance arm of tower crane |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202317514U true CN202317514U (en) | 2012-07-11 |
Family
ID=46429511
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011204303503U Expired - Lifetime CN202317514U (en) | 2011-11-03 | 2011-11-03 | Assembling tool equipment of balance arm of tower crane |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202317514U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105415244A (en) * | 2015-11-27 | 2016-03-23 | 河南新科起重机股份有限公司 | Crane splicing clamp |
| CN112091506A (en) * | 2020-08-26 | 2020-12-18 | 中联重科股份有限公司 | Balance arm swinging and overlapping tool |
-
2011
- 2011-11-03 CN CN2011204303503U patent/CN202317514U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105415244A (en) * | 2015-11-27 | 2016-03-23 | 河南新科起重机股份有限公司 | Crane splicing clamp |
| CN112091506A (en) * | 2020-08-26 | 2020-12-18 | 中联重科股份有限公司 | Balance arm swinging and overlapping tool |
| CN112091506B (en) * | 2020-08-26 | 2022-04-12 | 中联重科股份有限公司 | Balance arm swinging and overlapping tool |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: CHANGZHOU HAIJIE METALLURGICAL MACHINERY MANUFACTU Free format text: FORMER OWNER: CHANGZHOU CHANGYE HUATIAN METALLURGY EQUIPMENT CO., LTD. Effective date: 20140504 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 213125 CHANGZHOU, JIANGSU PROVINCE TO: 213012 CHANGZHOU, JIANGSU PROVINCE |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20140504 Address after: 213012 No. 2229 Longcheng Road, Jiangsu, Changzhou Patentee after: Changzhou Haijie Metallurgical Machinery Manufacturing Co., Ltd. Address before: 213125 No. 101, Qingyang Road, Xinbei District, Jiangsu, Changzhou Patentee before: Changzhou Changye Huatian Metallurgy Equipment Co., Ltd. |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120711 |