CN102328883A - Telescopic importing system and crane with same - Google Patents
Telescopic importing system and crane with same Download PDFInfo
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- CN102328883A CN102328883A CN201110212358A CN201110212358A CN102328883A CN 102328883 A CN102328883 A CN 102328883A CN 201110212358 A CN201110212358 A CN 201110212358A CN 201110212358 A CN201110212358 A CN 201110212358A CN 102328883 A CN102328883 A CN 102328883A
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Abstract
The invention provides a telescopic importing system and a crane with the same. The telescopic importing system provided by the invention comprises an importing mechanism, a traction mechanism and a supporting mechanism, wherein the importing mechanism comprising an importing transverse beam and an importing section movably arranged on the importing transverse beam; the importing transverse beam is detachably connected with a lower support seat; and the supporting mechanism comprises a supporting section which is arranged at the lower end of one horizontal end face of the importing transverse beam. The crane provided by the invention comprises the telescopic importing system. According to the telescopic importing system provided by the invention, a distance between the end part of the importing mechanism after importing is finished and a gyration centre is greatly reduced, a maximal elevation angle of a crane arm in a hoisting process is increased, a minimal gyration radius in the working process of a movable arm tower crane is reduced, a movable arm variable amplitude range is increased, a purpose of use convenience for hoisting operation is achieved, and the performances of the crane is improved. Furthermore, the telescopic importing system and the crane provided by the invention have good safety and stability, and easiness in operation.
Description
Technical field
The present invention relates to engineering machinery field, more specifically, relate to a kind of scalable introduction system and have its hoisting crane.
Background technology
Tower crane need carry out jacking and introduction when increasing the body of the tower height, introducing standard knot needs a cover introduction system to accomplish, and introduction system is fixed on body of the tower or the undersetting usually.
As shown in Figure 1, introduction system is captiveed joint with the undersetting 10 ' of tower crane, and introduction system generally comprises introduces crossbeam 21 ', pull bar 22 ' and trailer coupling 23 '.Because it is outer apart from the necessary long enough of L that the position of introducing and the needs of safety of operation, the introduction crossbeam 21 ' of introduction system stretch out body of the tower.Yet the easy and hoist rope interference of long introduction crossbeam influences the tower machine and normally uses.
Especially for luffing jib formula hoisting crane, this problem is more outstanding.Because there is the restriction of maximum elevation in the crane arm of swing arm tower machine; Far away from center of gyration usually by the arm point place standard knot that suspension hook slings that hoists; In order smoothly standard knot to be put on the dolly of introducing crossbeam; Introduce crossbeam and must stretch out sufficient length, long introduction crossbeam can in use interfere with hoist rope, influences the normal use of tower machine.For fear of the generation of interference problem, the designer shortens the luffing scope through regular meeting when design, reduces the crane arm maximum elevation, increases minimum radius of turning.But such design can reduce the lifting performance of hoisting crane, the needed operating needs of out of reach.
Also there is the overhanging platform-type structure of a kind of articulated type in prior art, and is as shown in Figure 2, and whole introduction system comprises overhanging framework 21 " and overhanging platform 23 " two joints.After introduction finishes, with overhanging platform 23 " inwardly upset, with outside long draw 22 " fold, reach the purpose that reduces introduction system length.But, the platform that structure shown in Figure 2 is just stood the people folds, and does not solve the long problem of crossbeam of introducing.
Summary of the invention
The object of the invention is to provide a kind of can effectively reduce the scalable introduction system of introducing beam-end and center of gyration distance and the hoisting crane with it.
According to an aspect of the present invention, a kind of scalable introduction system is provided, has comprised and introduce mechanism, comprised and introduce crossbeam and be arranged on the introduction portion that introduces on the crossbeam movably; Trailer coupling comprises winding section and the hauling rope of walking around the winding section movably, and trailer coupling also comprises rod section, and an end of rod section is connected with the introduction crossbeam, and the other end is connected with the undersetting of hoisting crane; Introducing crossbeam removably is connected with undersetting; Introduction system also comprises supporting mechanism, comprises the support portion, and the support portion is arranged on the lower end of a horizontal end face introducing crossbeam.
Further, the support portion removably connects with the lower ends of undersetting.
Further, the support portion is a support roller, introduces crossbeam and is arranged on the support roller with longitudinal movement.
Further; Supporting mechanism comprises first strut and second strut; Second strut is captiveed joint with support roller; One end of first strut is connected with undersetting, and its other end is connected through first bearing pin with an end of second strut, and the other end of second strut is connected with undersetting through second bearing pin.
Further, introducing crossbeam is to comprise that the cross-sectional plane of roof, diapire and vertical wall is the structure of I shape, and the support portion is arranged in the groove of a side of introducing crossbeam.
Further, rod section comprises the retractable and flexible part.
Further, flexible portion is a chain structure.
Further, the upper surface of introducing crossbeam is provided with first otic placode, and the lower end of undersetting is provided with second otic placode, and first otic placode is connected through croisillon de joint homocinetique with second otic placode.
Further, supporting mechanism also comprises vertical limiting section, and vertically the lower ends of limiting section and undersetting connects, and is arranged at the top of introducing crossbeam.
Further, vertically the lower end of limiting section has roller portion.
According to another aspect of the present invention, a kind of hoisting crane is provided, has comprised aforesaid scalable introduction system.
Adopt scalable introduction system of the present invention and have its hoisting crane, introduce crossbeam and removably be connected with undersetting, introduction system also comprises supporting mechanism, and its support portion is arranged on the lower end of a horizontal end face of introduction crossbeam.Behind the introduction of accomplishing standard knot and fixed standard joint, the attaching parts of introducing between crossbeam and the undersetting is removed because the existence of support portion, make introduce crossbeam can only be along itself and the contacted contact surface horizontal motion in support portion.Subsequently, through the effect of trailer coupling, hauling rope drive to be introduced crossbeam integral body and is moved and withdraw to the center of gyration direction, thereby has effectively shortened the extension elongation of introducing crossbeam, has reduced introduction beam-end and center of gyration distance.
Description of drawings
The accompanying drawing that constitutes the application's a part is used to provide further understanding of the present invention, and illustrative examples of the present invention and explanation thereof are used to explain the present invention, do not constitute improper qualification of the present invention.In the accompanying drawings:
Fig. 1 is the scheme drawing of a kind of introduction system of existing hoisting crane;
Fig. 2 is the scheme drawing of the another kind of introduction system of existing hoisting crane;
Fig. 3 is the structural representation according to scalable introduction system of the present invention;
Fig. 4 is the mounting structure scheme drawing according to scalable introduction system of the present invention;
Fig. 5 is the A place partial enlarged drawing of Fig. 4;
Fig. 6 is according to the position view before the introduction standard knot of scalable introduction system of the present invention;
Fig. 7 is according to the position view behind the introduction standard knot of scalable introduction system of the present invention;
Fig. 8 is main TV structure and the position view according to the support roller of scalable introduction system of the present invention;
Fig. 9 is left TV structure and the position view according to the support roller of scalable introduction system of the present invention;
Figure 10 is the scheme of installation according to the support roller of scalable introduction system of the present invention;
Figure 11 is the structural representation after installing according to the support roller of scalable introduction system of the present invention;
Figure 12 is that the introduction crossbeam according to scalable introduction system of the present invention stretches out the structural representation under the state;
Figure 13 is according to the structural representation under the introduction crossbeam indentation state of scalable introduction system of the present invention;
Figure 14 is first scheme drawing according to the mode of traction of the steel rope of scalable introduction system of the present invention; And
Figure 15 is second scheme drawing according to the mode of traction of the steel rope of scalable introduction system of the present invention.
The specific embodiment
Below with reference to accompanying drawing and combine embodiment to specify the present invention.
Like Fig. 3, Fig. 4 and shown in Figure 5, according to an aspect of the present invention, a kind of scalable introduction system is provided, comprise and introduce mechanism 10, comprise and introduce crossbeam 11 and be arranged on the introduction portion 12 that introduces on the crossbeam 11 movably; Trailer coupling 20, the hauling rope 24 that comprises winding section 23 and walk around winding section 23 movably, trailer coupling 20 also comprises rod section 22, and an end of rod section 22 is connected with introduction crossbeam 11, and the other end is connected with the undersetting 40 of hoisting crane; Introducing crossbeam 11 removably is connected with undersetting 40; Introduction system also comprises: supporting mechanism, comprise support portion 62, and support portion 62 is arranged on the lower end of a horizontal end face introducing crossbeam 11.
Tower crane needs jacking and introduction when increasing the body of the tower height, introduce standard knot process need one cover introduction system and accomplish.Referring to Figure 14 and Figure 15, introduction system comprises the trailer coupling 20 that is fixed on undersetting 40 1 sides, and trailer coupling 20 comprises winding section 23, is wound with hauling rope 24 on the winding section 23, and in the present embodiment, winding section 23 is a reel, and hauling rope 24 is a steel rope.An end was put rope when reel rotated, and an end is received rope, and steel rope one end connects introduction portion 12 front ends, and the other end connects introduction portion 12 tail ends, formed the sealing wiring.Introduction portion 12 is positioned at and introduces on the crossbeam 11, can accomplish through the rolling of the roller in the introduction portion 12 and introduce.Referring to Fig. 6 and Fig. 7, during introduction, being sling by the suspension hook 14 that hoists of crane arm arm point promotes beam 13, and the standard knots 50 that promote below the beam 13 are placed in the introduction portion 12 that introduces mechanism 10, and in the present embodiment, introduction portion 12 is for introducing dolly.Using the suspension hook 14 that hoists will promote beam 13 then removes; Driving through trailer coupling 20; Move to the center of gyration position of hoisting crane along introducing crossbeam 11 tracks by hauling rope 24 drive introduction dollies and standard knot 50, move to center of gyration, accomplish and introduce up to center with standard knot 50.After introducing completion and fixed standard joint 50; Standard knot 50 separates with the introduction dolly; The rocking handle of counter-rotation trailer coupling 20 is opposite when reel rotation direction and introduction at this moment, and steel rope will be introduced the end that dolly drags to the external part of introduction crossbeam 11; Its end is provided with baffle plate, and will to introduce little car bumper dead, can not move again.
In order to make that introducing crossbeam 11 can stretch by along continuous straight runs, introduces crossbeam 11 and removably is connected with undersetting 40.Referring to Figure 12 and Figure 13, behind the introduction of accomplishing standard knot 50 and fixed standard joint 50, the attaching parts of introducing between crossbeam 11 and the undersetting 40 to be removed, introduction crossbeam 11 contacts with the upper surface of support portion 62 and leans on support portion 62 to support fully.Subsequently; Go into overdrive to be rotated further the rocking handle of trailer coupling 20,, introduce crossbeam 11 whole past revolution center positions and move withdrawal owing to receive pull of steel wire; Thereby effectively shortened the extension elongation of introducing crossbeam, reduced introduction beam-end and center of gyration distance.In the time need introducing next time, the rocking handle of counter-rotation trailer coupling 20 is after steel rope drive introduction crossbeam 11 stretches out; Square rotates the rocking handle of trailer coupling 20 again; To introduce dolly and be drawn to introduction crossbeam 11 ends, and connect and introduce crossbeam 11 and undersetting 40, can introduce once more.
Through the support of supporting mechanism, make and introduce crossbeam 11 and can stretch out with indentation, introduction mechanism 10 ends of introducing after accomplishing and the distance of center of gyration are reduced greatly; Thereby the problem that hoist rope and introduction system are interfered when having solved tower machine big-elevation; The maximum elevation of crane arm when having increased lifting has reduced the minimum radius of turning when swing arm tower machine is worked, and has increased the scope of luffing jib; Reach lifting purpose easy for operation, improved the performance of hoisting crane.
In the present embodiment, like Figure 10 and shown in Figure 11, preferably, the upper surface of introducing crossbeam 11 is provided with first otic placode 25, and the lower end of undersetting 40 is provided with second otic placode, 41, the first otic placodes 25 and is connected through croisillon de joint homocinetique 42 with second otic placode 41.
Second otic placode 41 on the undersetting 40 is the monaural plate, and first otic placode of introducing on the crossbeam 11 25 is the ears plate.When needs were introduced, introduction system was stretched out, and will introduce crossbeam 11 through croisillon de joint homocinetique 42 and link together with undersetting 40.Such structure has four groups.Before crossbeam 11 is introduced in withdrawal, take down four second bearing pins 42 that are used for fixing and support introduction system, introduction system promptly supports by support roller fully, and can move along the rotating direction of roller.Before will introducing operation, second otic placode 41 is connected through four second bearing pins 42 with first otic placode 25 is fixed up, introduce operation again.
Like Figure 10 and shown in Figure 11, support portion 62 removably connects with the lower ends of undersetting 40.
Referring to Fig. 8 and Fig. 9, preferably, support portion 62 is a support roller, introduces crossbeam 11 and is arranged on the support roller with longitudinal movement.
Like Figure 10 and shown in Figure 11; Supporting mechanism comprises first strut 63 and second strut 64; Second strut 64 is captiveed joint with support roller; One end of first strut 63 is connected with undersetting 40, and its other end is connected through first bearing pin 43 with an end of second strut 64, and the other end of second strut 64 is connected with undersetting 40 through second bearing pin 44.
After the supporting mechanism installation; Structure on the bottom surface of first strut 63, second strut 64 and undersetting 40 forms firm triangular structure together; The lower end that is fixed on undersetting 40 that support roller is firm, what make that support roller can be stable supports introducing crossbeam 11.Be connected with second bearing pin 44 through first bearing pin 43 between the three, can play stable interconnect function, constitute detachable connection again, and remove efficient and convenient.
Referring to Fig. 8 and Fig. 9, according to one embodiment of present invention, support roller has four groups, and is installed near the otic placode that is used for being connected with the introduction crossbeam below the undersetting 40.Referring to Figure 11; Four groups of inboards that are arranged at introduction crossbeam 11 that support roller is symmetrical in twos; Thereby can carry out spacing on the horizontal direction to introducing crossbeam 11; Preventing to introduce attaching parts between crossbeam 11 and the undersetting 40 removes the back and introduces crossbeam 11 relative undersettings 40 sway (bearing of trend with introduction crossbeam 11 is front and back, be with the left and right directions of the introduction crossbeam 11 among Figure 11 about) take place.Hence one can see that, and support roller can be played a supporting role and directional tagging simultaneously.
Like Figure 10 and shown in Figure 11, introducing crossbeam 11 is to comprise that the cross-sectional plane of roof, diapire and vertical wall is the structure of I shape, and support portion 62 is arranged in the groove of a side of introducing crossbeam 11.
In the present embodiment, introducing crossbeam 11 is i-beam structure, comprises two horizontal parts of roof and diapire and the vertical wall that is connected two horizontal parts.Support portion 62 is arranged on the lower end of roof and is arranged in the groove of a side of introducing crossbeam 11, can play a supporting role, can play position-limiting action to it again introducing crossbeam 11.
Like Figure 12 and shown in Figure 13, rod section 22 comprises the retractable and flexible part.Preferably, flexible portion is a chain structure.
Like Fig. 8, Fig. 9 and Figure 10 and shown in Figure 11, supporting mechanism also comprises vertical limiting section 61, and vertically limiting section 61 connects with the lower ends of undersetting 40, and is arranged at the top of introducing crossbeam 11.
Vertically limiting section 61 is fixedly mounted on the lower end of undersetting 40; Before and after introducing, be positioned at always introduce crossbeam 11 above; And carry out on the spacing basis of left and right directions introducing crossbeam 11 at support roller; Be arranged on the top of introducing crossbeam 11, prevent to introduce crossbeam play upwards takes place when stretching out and withdraw.Therefore; The vertically setting of limiting section 61 and support roller; Make that introducing crossbeam 11 can only move along the bearing of trend of introducing crossbeam when stretching out and withdraw; Guaranteed to introduce the stability of crossbeam 11 motions, can be thereby introduce crossbeam 11 owing to stressed not excessive or other is former thereby depart from flexible track.
Like Figure 10 and shown in Figure 11, preferably, vertically the lower end of limiting section 61 has roller portion.
In order to guarantee to introduce the particularity of crossbeam 11 motions, the lower end of vertical limiting section 61 is contacted with introduction crossbeam 11 or only stay very little slit.Under this kind situation, roller portion is set, to reduce maybe and the introducing friction between the crossbeam 11 in vertical limiting section 61 lower ends.
According to another aspect of the present invention, a kind of hoisting crane is provided, has comprised aforesaid scalable introduction system.
Because other parts of hoisting crane of the present invention are prior art, will repeat no more at this.
From above description, can find out that the above embodiments of the present invention have realized following technique effect:
The introduction crossbeam that is arranged so that of supporting mechanism can stretch out and indentation; Introduction mechanism end after introduce accomplishing is reduced with the distance of center of gyration greatly, thereby the problem of hoist rope and introduction system interference when having solved tower machine big-elevation has increased the maximum elevation of crane arm when lifting; Minimum radius of turning when having reduced the work of swing arm tower machine; Increase the scope of luffing jib, reached lifting purpose easy for operation, improved the performance of hoisting crane.In addition, safety of the present invention and good stability, and be easy to operate.
The above is merely the preferred embodiments of the present invention, is not limited to the present invention, and for a person skilled in the art, the present invention can have various changes and variation.All within spirit of the present invention and principle, any modification of being done, be equal to replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (11)
1. scalable introduction system comprises:
Introduce mechanism (10), comprise and introduce crossbeam (11) and be arranged on the introduction portion (12) on the said introduction crossbeam (11) movably;
Trailer coupling (20); The hauling rope (24) that comprises winding section (23) and walk around said winding section (23) movably; Said trailer coupling (20) also comprises rod section (22); One end of said rod section (22) is connected with said introduction crossbeam (11), and the other end is connected with the undersetting (40) of hoisting crane;
It is characterized in that:
Said introduction crossbeam (11) removably is connected with said undersetting (40);
Said introduction system also comprises:
Supporting mechanism comprises support portion (62), and said support portion (62) are arranged on the lower end of a horizontal end face of said introduction crossbeam (11).
2. scalable introduction system according to claim 1 is characterized in that, said support portion (62) removably connect with the lower ends of said undersetting (40).
3. scalable introduction system according to claim 2 is characterized in that, said support portion (62) are support roller, and said introduction crossbeam (11) is arranged on the said support roller with longitudinal movement.
4. scalable introduction system according to claim 3; It is characterized in that; Said supporting mechanism comprises first strut (63) and second strut (64), and said second strut (64) is captiveed joint with said support roller, and an end of said first strut (63) is connected with said undersetting (40); Its other end is connected through first bearing pin (43) with an end of said second strut (64), and the other end of said second strut (64) is connected with said undersetting (40) through second bearing pin (44).
5. scalable introduction system according to claim 3; It is characterized in that; Said introduction crossbeam (11) be comprise roof, diapire and vertically the cross-sectional plane of wall be the structure of I shape, said support portion (62) are arranged in the groove of a side of said introduction crossbeam (11).
6. scalable introduction system according to claim 1 is characterized in that, said rod section (22) comprises the retractable and flexible part.
7. scalable introduction system according to claim 6 is characterized in that, said flexible portion is a chain structure.
8. scalable introduction system according to claim 1; It is characterized in that; The upper surface of said introduction crossbeam (11) is provided with first otic placode (25); The lower end of said undersetting (40) is provided with second otic placode (41), and said first otic placode (25) is connected through croisillon de joint homocinetique (42) with said second otic placode (41).
9. according to each described scalable introduction system in the claim 1 to 8; It is characterized in that; Said supporting mechanism also comprises vertical limiting section (61), and said vertical limiting section (61) connects with the lower ends of said undersetting (40), and is arranged at the top of said introduction crossbeam (11).
10. scalable introduction system according to claim 9 is characterized in that, the lower end of said vertical limiting section (61) has roller portion.
11. a hoisting crane is characterized in that, comprises each described scalable introduction system in the claim 1 to 10.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110212358 CN102328883B (en) | 2011-07-27 | 2011-07-27 | Telescopic importing system and crane with same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110212358 CN102328883B (en) | 2011-07-27 | 2011-07-27 | Telescopic importing system and crane with same |
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| Publication Number | Publication Date |
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| CN102328883A true CN102328883A (en) | 2012-01-25 |
| CN102328883B CN102328883B (en) | 2013-03-27 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201110212358 Active CN102328883B (en) | 2011-07-27 | 2011-07-27 | Telescopic importing system and crane with same |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103058070A (en) * | 2012-12-28 | 2013-04-24 | 徐州重型机械有限公司 | An introducing beam and a tower crane |
| CN103171980A (en) * | 2013-04-03 | 2013-06-26 | 中联重科股份有限公司 | Tower crane and launching beam and launching system thereof |
| CN103342300A (en) * | 2013-07-19 | 2013-10-09 | 中联重科股份有限公司 | Tower crane, as well as lead-in system and standard knot lead-in method thereof |
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| CN201265258Y (en) * | 2008-09-08 | 2009-07-01 | 长沙科达建设机械制造有限公司 | Climbing frame of concrete spreader |
| CN201313792Y (en) * | 2008-11-18 | 2009-09-23 | 江麓机电科技有限公司 | Lengthened hinge introducing platform of tower crane |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103058070A (en) * | 2012-12-28 | 2013-04-24 | 徐州重型机械有限公司 | An introducing beam and a tower crane |
| CN103058070B (en) * | 2012-12-28 | 2014-12-10 | 徐州重型机械有限公司 | An introducing beam and a tower crane |
| CN103171980A (en) * | 2013-04-03 | 2013-06-26 | 中联重科股份有限公司 | Tower crane and launching beam and launching system thereof |
| CN103171980B (en) * | 2013-04-03 | 2015-07-15 | 中联重科股份有限公司 | Tower crane and launching beam and launching system thereof |
| CN103342300A (en) * | 2013-07-19 | 2013-10-09 | 中联重科股份有限公司 | Tower crane, as well as lead-in system and standard knot lead-in method thereof |
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| Publication number | Publication date |
|---|---|
| CN102328883B (en) | 2013-03-27 |
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Address after: 410013 Yuelu District, Hunan, silver basin Road, No. 361, No. Patentee after: Zoomlion Heavy Industry Science & Technology Development Co., Ltd. Address before: 415106 Dingcheng City, Changde Province, the town of irrigation district ZOOMLION Creek Industrial Park Patentee before: Zoomlion Heavy Industry Science & Technology Development Co., Ltd. |
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