CN103588091A - Load trolley, load trolley amplitude changing system of crane with load trolley and crane - Google Patents
Load trolley, load trolley amplitude changing system of crane with load trolley and crane Download PDFInfo
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- CN103588091A CN103588091A CN201310595453.9A CN201310595453A CN103588091A CN 103588091 A CN103588091 A CN 103588091A CN 201310595453 A CN201310595453 A CN 201310595453A CN 103588091 A CN103588091 A CN 103588091A
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- 238000010586 diagram Methods 0.000 description 6
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- 231100000681 Certain safety factor Toxicity 0.000 description 1
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Abstract
The invention provides a load trolley, a load trolley amplitude varying system of a crane with the load trolley and the crane. Wherein the load dolly includes: frame (11), load dolly still includes: a first reel (12) pivoted to the frame (11); and a second reel (13) which is provided in linkage with the first reel (12), and the central axis of the second reel (13) is parallel to or on the same straight line as the central axis of the first reel (12). The technical scheme of the invention can facilitate the automatic control of the tensioning of the luffing rope and improve the tensioning effect.
Description
Technical field
The present invention relates to engineering machinery field, in particular to a kind of loading trolley and there is loading trolley changing-breadth system, the hoisting crane of its hoisting crane.
Background technology
Luffing mechanism is one of operating mechanism of tower crane, in order to meet the requirement of material handling control position, make full use of the crane capacity (amplitude reduces can improve hoisting capacity) of self, realize the operating mechanism of change amplitude, and be used for improving the operating range of tower crane, enhance productivity.According to mode of motion, luffing mechanism can be divided into crane swing luffing mechanism and loading trolley formula luffing mechanism.The advantage that realizes luffing by loading trolley is that during luffing, material moves horizontally, installation in position convenience; Speed is fast, saving power; Amplitude effective rate of utilization is large.
The operation scheme of loading trolley formula luffing mechanism comprises two kinds of self-propelled and cord-traction types.The loading trolley of cord-traction type moves along crane arm under the traction of two luffing ropes, realizes luffing function.But, the tower crane of employing loading trolley formula luffing mechanism, after Li Ta completes, luffing rope generally can relax and hang in the air, and lax luffing rope impacts tower crane in the time of can causing loading trolley to start, and therefore need to carry out tensioning to luffing rope.
As depicted in figs. 1 and 2, for existing a kind of ratchet tightening device, when luffing rope 20 ' is wanted tensioning, first ratchet 90 ' conter clockwise is rotated a little, bearing pin 80 ' is lifted to the top of the waist-shaped hole 71 ' on otic placode 70 ', then artificial rotating ratchet 90 ', the rope body of the slack of luffing rope 20 ' is wound up on the reel being connected with ratchet 90 ', thereby by the 20 ' tensioning of luffing rope, then bearing pin 80 ' is fallen, ratchet 90 ' is stuck.Whole tensioning process is by manually completing, because operating position is higher apart from ground, and ratchet tightening device is far away apart from the hanging basket of loading trolley, so be difficult to operation, and safety is difficult to guarantee, in addition, the degree of luffing rope 20 ' tensioning can be different because of the individual difference of operating personal, and effect is difficult to guarantee.
Summary of the invention
The present invention aims to provide a kind of loading trolley and has loading trolley changing-breadth system, the hoisting crane of its hoisting crane, can improve tension effects so that the tensioning of luffing rope is carried out to automation control, improves the safety of operation.
To achieve these goals, according to an aspect of the present invention, provide a kind of loading trolley, comprised vehicle frame, loading trolley also comprises: the first reel, is articulated on vehicle frame; And second reel, arrange in linkage with the first reel, and the central axis of the central axis of the second reel and the first reel is parallel or be located along the same line.
Further, the second reel is fixed on the end face of the first reel.
Further, the first reel and the second reel coaxially arrange.
Further, the diameter of the first reel is greater than the diameter of the second reel.
Further, loading trolley also comprises erecting frame, and erecting frame is fixed on vehicle frame, and the first reel and the second reel are articulated on erecting frame respectively.
Further, erecting frame comprises: the first adapter plate, be fixed on vehicle frame and along the direction away from vehicle frame to downward-extension, and the elongated end of the first adapter plate is articulated with the first reel; And second adapter plate, be fixed on vehicle frame and with the first adapter plate and be oppositely arranged, on the second adapter plate, be articulated with the second reel.
Further, loading trolley also comprises chocking construction, chocking construction is removably connected between the first reel and erecting frame, or is removably connected between the second reel and erecting frame, or is removably connected between the first reel and erecting frame and between the second reel and erecting frame.
Further, erecting frame also comprises axle sleeve, and axle sleeve is fixed on the first adapter plate, and the rotating shaft of the first reel is embedded in axle sleeve; Between axle sleeve and the first reel, be provided with chocking construction.
Further, chocking construction comprises bearing pin, and bearing pin is removably located in the rotating shaft of axle sleeve and the first reel.
According to a further aspect in the invention, provide a kind of loading trolley changing-breadth system of hoisting crane, having comprised: loading trolley, has been arranged on the crane arm of hoisting crane; The first luffing rope, first end is arranged on loading trolley; The second luffing rope, first end is arranged on loading trolley; Engine installation, is fixedly connected with the second end of the first luffing rope and the second end of the second luffing rope respectively; Loading trolley is aforesaid loading trolley, is fixedly connected with the first end of the first luffing rope on the first reel, is fixedly connected with the first end of the second luffing rope on the second reel.
Further, the loading trolley changing-breadth system of hoisting crane also comprises: arm point pulley, is fixed on the arm point of crane arm; And arm root pulley, be fixed on the arm root of crane arm; The first luffing rope pile warp arm point pulley, the second luffing rope pile warp arm root pulley; The loading trolley changing-breadth system of hoisting crane comprises luffing state and tensioning state, and under tensioning state, the first reel and the second reel arrange rotationally respectively on vehicle frame, and the second reel and the first reel arrange in linkage; Under luffing state, the first reel and the second reel are fixedly installed with respect to vehicle frame respectively.
Further, the loading trolley changing-breadth system of hoisting crane also comprises pressure sensor, and pressure sensor is electrically connected to engine installation; Loading trolley has the primary importance with the arm root butt of crane arm, and when loading trolley is positioned at primary importance, pressure sensor is connected between loading trolley and arm root.
According to a further aspect in the invention, provide a kind of hoisting crane, comprised the loading trolley changing-breadth system of hoisting crane, the loading trolley changing-breadth system that the loading trolley changing-breadth system of hoisting crane is aforesaid hoisting crane.
Apply technical scheme of the present invention, the reel of two interlocks is set on loading trolley, one of them reel is for winding the first luffing rope, another reel is for winding the second luffing rope, as long as one of them reel rotates, another reel can rotate simultaneously, realizing two reels coordinates, the first luffing rope and the second luffing rope are carried out to folding and unfolding, because two reels are linkage structure, can automatically control easily, reduce manual operation, realize the auto-tensioning of the first luffing rope and the second luffing rope, also improved safety performance simultaneously.
Accompanying drawing explanation
The Figure of description that forms the application's a part is used to provide a further understanding of the present invention, and schematic description and description of the present invention is used for explaining the present invention, does not form inappropriate limitation of the present invention.In the accompanying drawings:
Fig. 1 shows according to the schematic diagram of the ratchet tightening device of prior art;
Fig. 2 show according to 1 partly cut open schematic diagram;
Fig. 3 shows the schematic diagram of loading trolley according to an embodiment of the invention;
Fig. 4 shows the birds-eye view according to Fig. 3;
Fig. 5 shows the schematic diagram that the first reel and the second reel match according to an embodiment of the invention;
Fig. 6 shows the schematic diagram of loading trolley installation chocking construction according to an embodiment of the invention;
Fig. 7 shows the schematic diagram of the loading trolley changing-breadth system of hoisting crane according to an embodiment of the invention; And
Fig. 8 shows the principle schematic of the loading trolley changing-breadth system of hoisting crane according to an embodiment of the invention.
The specific embodiment
Describe below with reference to the accompanying drawings and in conjunction with the embodiments the present invention in detail.It should be noted that, in the situation that not conflicting, embodiment and the feature in embodiment in the application can combine mutually.
As shown in Figures 3 to 6, according to embodiments of the invention, a kind of loading trolley being applied on hoisting crane is provided, this loading trolley comprises vehicle frame 11, the first reel 12, the second reel 13 and erecting frame 15, wherein vehicle frame 11 is as the installation basis of loading trolley miscellaneous part, erecting frame 15 is fixed on vehicle frame 11, the first reel 12 and the second reel 13 are articulated in respectively on erecting frame 15, the second reel 13 is fixed on the end face of the first reel 12, and the first reel 12 and the second reel 13 coaxially arrange, make the first reel 12 and the second reel 13 interlocks, be that one of them is when rotate, drive another to rotate together.After loading trolley assembles, the first reel 12 is for the first luffing rope of reeling, the second reel 13 is for the second luffing rope of reeling, because the first reel 12 and the second reel 13 are linkage structure, so the first reel 12 and the second reel 13 can cooperatively interact, carry out the folding and unfolding to the first luffing rope and the second luffing rope, reduce manual operation, then coordinate the engine installation of motor and so on, just can automatically control easily, improve the folding and unfolding efficiency of the first luffing rope and the second luffing rope.
Preferably, the diameter of the first reel 12 is greater than the diameter of the second reel 13, makes the first reel 12 have different linear velocities from the second reel 13, facilitates the tensioning of the first luffing rope and the second luffing rope.
The present embodiment is by being fixed together the first reel 12 and the second reel 13 to realize the interlock of the first reel 12 and the second reel 13, between the first reel 12 and the second reel 13, can be integrally formed, also can be the structure of separable assembled, in addition, the first reel 12 is not limited to coaxially be fixedly connected with the interlock mode of the second reel 13, the central axis that can be also the first reel 12 is parallel with the central axis of the second reel 13, between the first reel 12 and the second reel 13, drive mechanism is set, makes the first reel 12 and the second reel 13 interlocks.
In conjunction with referring to Fig. 6, preferably, erecting frame 15 is included in the first adapter plate 151 and the second adapter plate 152 that fixedly mounts and be oppositely arranged on vehicle frame 11, wherein on the first adapter plate 151, is articulated with on the first reel 12, the second adapter plates 152 and is articulated with the second reel 13.The first adapter plate 151 and the second adapter plate 152 are respectively along the direction away from vehicle frame 11 to downward-extension, and the first reel 12 and the second reel 13 are articulated in respectively the elongated end of the first adapter plate 151 and the second adapter plate 152.
Preferably, loading trolley also comprises chocking construction 16, when needs tensioning the first luffing rope 20 and the second luffing rope 30, chocking construction 16 is not installed, the first reel 12 and the second reel 13 can rotate, the tensioning of realization to the first luffing rope 20 and the second luffing rope 30, after completing tensioning process, chocking construction 16 is arranged between the first reel 12 and erecting frame 15, can prevent that the first reel 12 and the second reel 13 from rotating, now loading trolley can be realized luffing function, when the first luffing rope on needing tensioning the first reel 12 and the second luffing rope on the second reel 13, again chocking construction 16 is removed, the first reel 12 and the second reel 13 are rotated.
Certainly, chocking construction 16 also can be arranged between the second reel 13 and erecting frame 15, or between the first reel 12 and erecting frame 15 and between the second reel 13 and erecting frame 15, chocking construction 16 is all being installed.
The chocking construction 16 of take is below arranged between the first reel 12 and erecting frame 15 as example is elaborated.
On the first adapter plate 151, be fixed with axle sleeve 153, the rotating shaft of the first reel 12 is embedded in axle sleeve 153, in the rotating shaft of axle sleeve 153 and the first reel 12, be respectively arranged with knock hole, chocking construction 16 is bearing pin 163, when loading trolley carries out luffing operation and while not needing the first reel 12 and the second reel 13 to rotate, knock hole in the rotating shaft of the knock hole of axle sleeve 153 and the first reel 12 is aligned, insert bearing pin 163, when the first luffing rope on needing tensioning the first reel 12 and the second luffing rope on the second reel 13, bearing pin 163 is pulled down.
Preferably, bearing pin 163 inserts after the knock hole of axle sleeves 153 and the first reel 12, and insertion spring cotter 164 in two ends prevents that bearing pin 163 from axially deviating from from knock hole.
In conjunction with referring to Fig. 7 and Fig. 8, the present invention also provides a kind of loading trolley changing-breadth system of hoisting crane, comprise loading trolley 10, the first luffing rope 20, the second luffing rope 30, engine installation 40, arm root pulley 61 and arm point pulley 62, wherein loading trolley 10 is aforesaid loading trolley, the first end winding of the first luffing rope 20 is on the first reel 12 of loading trolley 10, after the second end pile warp arm point pulley 62 of the first luffing rope 20, be fixed on engine installation 40, the first end winding of the second luffing rope 30 is on the second reel 13 of loading trolley 10, after the second end pile warp arm root pulley 61 of the second luffing rope 30, be fixed on engine installation 40.By the loading trolley changing-breadth system of this cover hoisting crane, can easily realize the tensioning of the first luffing rope 20 and the second luffing rope 30, without artificial the first luffing rope 20 and the second luffing rope 30 of reeling, tensioning is reliable, and safety is higher.
Preferably, engine installation 40 comprises that amplitude-changing drum 41 and the second end of motor 42, the first luffing ropes 20 and the second end of the second luffing rope 30 are separately fixed at the two ends of amplitude-changing drum 41.
Illustrate the principle of work of this system below.
If the diameter of the first reel 12 is D1, the diameter of the second reel 13 is D2, and the first reel 12 is identical with the cireular frequency of the second reel 13, that is:
ω1=ω2 （1）
The winding ratio of the first reel 12 and the second reel 13 is:
i=i1/i2=ω1×D1/ω2×D2=D1/D2 （2）
As the above analysis, can recently control by controlling the winding of the first reel 12 and the second reel 13 the outstanding long amount of the first luffing rope 20 and the second luffing rope 30.
When hoisting crane completes after vertical tower, loading trolley 10 is run to the arm root place of crane arm, the first luffing rope 20 and the second luffing rope 30 are distinguished to windings on the first reel 12 and the second reel 13, and on the second reel 13, be wound around in advance a certain amount of the second luffing rope 30, when motor 42 rotates, the second luffing rope 30 is through rope closing on arm root pulley 61 backward amplitude-changing drums 41, the first luffing rope 20 on amplitude-changing drum 41 is put rope outside amplitude-changing drum 41 simultaneously, when the second luffing rope 30 is suspended at the rope body tensioning between the second reel 13 and amplitude-changing drum 41, the second luffing rope 30 drives the second reel 13 to rotate according to the anticlockwise direction shown in Fig. 8, thereby drive the first reel 12 to rotate counterclockwise, the rope body that the first luffing rope 20 is suspended between the first reel 12 and amplitude-changing drum 41 is wound up on the first reel 12.Because now the winding of the first reel 12 and the second reel 13 is greater than 1 than i, the rope closing amount of the first reel 12 is greater than the rope amount of putting of the second reel 13, the rope that the first luffing rope 20 is suspended between the first reel 12 and amplitude-changing drum 41 is known from experience minimizing gradually, until the first luffing rope 20 tensionings.
After tensioning, if be rotated further motor 42, because it is identical with the length of packing up the second luffing rope 30 that motor 42 is emitted the first luffing rope 20 at one time, but the first reel 12 rope closing amounts are larger, can on the second luffing rope 30, produce certain pulling force, make loading trolley 10 to the arm root direction motion of crane arm, until the bump rubber 51 on clamping arm root, if pulling force is crossed conference the second luffing rope 30 is broken, so, preferably, bump rubber 51 places at crane arm arrange pressure sensor 50, pressure sensor 50 is electrically connected to motor 42, when loading trolley 10 compresses bump rubber 51, pressure sensor 50 is connected between loading trolley 10 and bump rubber 51, for pressure sensor 50 is set a threshold values, this threshold values is got certain safety factor according to the breaking force of the second luffing rope 30 and is set, if the pressure between loading trolley 10 and bump rubber 51 arrives this threshold values, can trigger pressure sensor 50 and send signal to motor 42, make motor 42 power-off, prevent that the second luffing rope 30 is pulled off, then chocking construction 16 being arranged on can be fixing by the first reel 12 and the second reel 13 on loading trolley 10, prevent its motion.Whole process is by making the linear velocity of the first reel 12 be greater than the linear velocity of the second reel 13, and the interlock of first reel 12 and the second reel 13, realize the auto-tensioning of the first luffing rope 20 and the second luffing rope 30, easy-to-operate, tension effects can guarantee.
The present invention also provides a kind of hoisting crane, comprises the loading trolley changing-breadth system of hoisting crane, the loading trolley changing-breadth system that the loading trolley changing-breadth system of this hoisting crane is aforesaid hoisting crane.
As can be seen from the above description, the above embodiments of the present invention have realized following technique effect:
1, adopt two reels that link to realize the auto-tensioning of luffing rope;
2, two reels are coaxially fixedly installed, simple in structure;
3, adopts pressure sensor is controlled tension effects;
4, after tensioning, adopt chocking construction to prevent that two reels from rotating, reliability is high.
The foregoing is only the preferred embodiments of the present invention, be not limited to the present invention, for a person skilled in the art, the present invention can have various modifications and variations.Within the spirit and principles in the present invention all, any modification of doing, be equal to replacement, improvement etc., within all should being included in protection scope of the present invention.
Claims (13)
1. a loading trolley, comprises vehicle frame (11), it is characterized in that, described loading trolley also comprises:
The first reel (12), is articulated on described vehicle frame (11); And
The second reel (13), arranges in linkage with described the first reel (12), and the central axis of the central axis of described the second reel (13) and described the first reel (12) is parallel or be located along the same line.
2. loading trolley according to claim 1, is characterized in that, described the second reel (13) is fixed on the end face of described the first reel (12).
3. loading trolley according to claim 1, is characterized in that, described the first reel (12) coaxially arranges with described the second reel (13).
4. loading trolley according to claim 1, is characterized in that, the diameter of described the first reel (12) is greater than the diameter of described the second reel (13).
5. loading trolley according to claim 1, it is characterized in that, described loading trolley also comprises erecting frame (15), and it is upper that described erecting frame (15) is fixed on described vehicle frame (11), and described the first reel (12) and described the second reel (13) are articulated in respectively on described erecting frame (15).
6. loading trolley according to claim 5, is characterized in that, described erecting frame (15) comprising:
The first adapter plate (151), is fixed on described vehicle frame (11) upper also along the direction away from described vehicle frame (11) to downward-extension, and the elongated end of described the first adapter plate (151) is articulated with described the first reel (12); And
The second adapter plate (152), is fixed on described vehicle frame (11) above and is oppositely arranged with described the first adapter plate (151), is articulated with described the second reel (13) on described the second adapter plate (152).
7. loading trolley according to claim 6, it is characterized in that, described loading trolley also comprises chocking construction (16), described chocking construction (16) is removably connected between described the first reel (12) and described erecting frame (15), or be removably connected between described the second reel (13) and described erecting frame (15), or be removably connected between described the first reel (12) and described erecting frame (15) and between described the second reel (13) and described erecting frame (15).
8. loading trolley according to claim 7, is characterized in that,
Described erecting frame (15) also comprises axle sleeve (153), and it is upper that described axle sleeve (153) is fixed on described the first adapter plate (151), and the rotating shaft of described the first reel (12) is embedded in described axle sleeve (153);
Between described axle sleeve (153) and described the first reel (12), be provided with described chocking construction (16).
9. loading trolley according to claim 8, is characterized in that, described chocking construction (16) comprises bearing pin (163), and described bearing pin (163) is removably located in the described rotating shaft of described axle sleeve (153) and described the first reel (12).
10. a loading trolley changing-breadth system for hoisting crane, is characterized in that, comprising:
Loading trolley (10), is arranged on the crane arm of hoisting crane;
The first luffing rope (20), first end is arranged on described loading trolley (10);
The second luffing rope (30), first end is arranged on described loading trolley (10);
Engine installation (40), is fixedly connected with the second end of described the first luffing rope (20) and the second end of described the second luffing rope (30) respectively;
It is characterized in that, described loading trolley (10) is the loading trolley described in any one in claim 1 to 9, on described the first reel (12), be fixedly connected with the described first end of described the first luffing rope (20), on described the second reel (13), be fixedly connected with the described first end of described the second luffing rope (30).
The loading trolley changing-breadth system of 11. hoisting cranes according to claim 10, is characterized in that, the loading trolley changing-breadth system of described hoisting crane also comprises:
Arm point pulley (62), is fixed on the arm point of described crane arm; And
Arm root pulley (61), is fixed on the arm root of described crane arm;
Arm point pulley (62) described in described the first luffing rope (20) pile warp, arm root pulley (61) described in described the second luffing rope (30) pile warp;
The loading trolley changing-breadth system of described hoisting crane comprises luffing state and tensioning state, under described tensioning state, described the first reel (12) and described the second reel (13) arrange rotationally respectively on described vehicle frame (11), and described the second reel (13) arranges in linkage with described the first reel (12); Under described luffing state, described the first reel (12) and described the second reel (13) are fixedly installed with respect to described vehicle frame (11) respectively.
The loading trolley changing-breadth system of 12. hoisting cranes according to claim 10, is characterized in that,
The loading trolley changing-breadth system of described hoisting crane also comprises pressure sensor (50), and described pressure sensor (50) is electrically connected to described engine installation (40);
Described loading trolley (10) has the primary importance with the arm root butt of described crane arm, and when described loading trolley (10) is positioned at described primary importance, described pressure sensor (50) is connected between described loading trolley (10) and described arm root.
13. 1 kinds of hoisting cranes, comprise and it is characterized in that the loading trolley changing-breadth system of hoisting crane, the loading trolley changing-breadth system of described hoisting crane is the loading trolley changing-breadth system of the hoisting crane described in any one in claim 10 to 12.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310595453.9A CN103588091B (en) | 2013-11-22 | 2013-11-22 | Load trolley, load trolley amplitude changing system of crane with load trolley and crane |
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| CN201310595453.9A CN103588091B (en) | 2013-11-22 | 2013-11-22 | Load trolley, load trolley amplitude changing system of crane with load trolley and crane |
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| CN103588091B CN103588091B (en) | 2015-12-09 |
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| CN108163719A (en) * | 2017-12-25 | 2018-06-15 | 沃尔肯起重机（无锡）有限公司 | A kind of novel clean travelling overhead crane apparatus |
| CN110606205A (en) * | 2019-10-17 | 2019-12-24 | 航宇救生装备有限公司 | Landing anti-overturning method for air drop system |
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| CN106744396A (en) * | 2016-12-30 | 2017-05-31 | 徐州建机工程机械有限公司 | A kind of dynamic flat arm dual-fuel engine oil amplitude variation trolley |
| CN106744396B (en) * | 2016-12-30 | 2018-05-08 | 徐州建机工程机械有限公司 | A kind of dynamic flat arm dual-fuel engine oil amplitude variation trolley |
| CN108163719A (en) * | 2017-12-25 | 2018-06-15 | 沃尔肯起重机（无锡）有限公司 | A kind of novel clean travelling overhead crane apparatus |
| CN110606205A (en) * | 2019-10-17 | 2019-12-24 | 航宇救生装备有限公司 | Landing anti-overturning method for air drop system |
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|---|---|
| CN103588091B (en) | 2015-12-09 |
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