CN103318777A - Connection device for front vehicle and rear vehicle of super-tonnage crane and crane - Google Patents
Connection device for front vehicle and rear vehicle of super-tonnage crane and crane Download PDFInfo
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- CN103318777A CN103318777A CN2012100808635A CN201210080863A CN103318777A CN 103318777 A CN103318777 A CN 103318777A CN 2012100808635 A CN2012100808635 A CN 2012100808635A CN 201210080863 A CN201210080863 A CN 201210080863A CN 103318777 A CN103318777 A CN 103318777A
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Abstract
The invention relates to a connection device for a front vehicle and a rear vehicle of a super-tonnage crane and the crane. The connection device for the front vehicle and the rear vehicle comprises a sliding joint connected with the rear vehicle, a lengthening arm joint connected with the front vehicle, and a stretching joint connected with the sliding joint and the lengthening arm joint. A pull plate is further arranged at a junction of the sliding joint and the rear vehicle; a support rod is arranged on the stretching joint or at a junction of the stretching joint and the lengthening arm joint; the pull plate is connected with the top end of the support rod; and the pull plate, the support rod, the sliding joint and at least a part of the stretching joint form a triangular structure. No load transfer or little load transfer exists between the sliding joint and the stretching joint of the connection device for the front vehicle and the rear vehicle in an installation state of the crane, so that a cylinder design of the stretching joint is not limited by a load of the pull plate with a propeller strut. Therefore, the design difficulty and the manufacturing cost of the connection device for the front vehicle and the rear vehicle are greatly decreased.
Description
Technical field
The present invention relates to a kind of bindiny mechanism of heavy wares, particularly relate to a kind of front and back car connecting device of super-tonnage crane and have the hoisting crane of this device.
Background technology
For satisfying in the Larger Engineering Projects such as domestic petroleum, petrochemical industry, nuclear power, wind-powered electricity generation, iron and steel the lifting demand to super large equipment, more and more to the ultra-large type development, lifting altitude is higher for hoisting crane, and work range is larger, and load-carrying ability is stronger.In various types of hoisting cranes, crawler crane becomes indispensable instrument in the main equipment installation with the mobile particularity of its lifting.Along with the development of maximizing, the series of problems in the processes such as the design that brings, production, transportation, installation and use is seriously restricting the development of crawler crane.
Front and back car connecting device is one of important component of super-tonnage crane, mainly plays effects such as alleviating impact, transmitted load.The basic structure of super-tonnage crane forms as shown in Figure 1.
Front and back car connecting device mainly plays a role in following three states of super-tonnage crane:
One, state 1 (as shown in Figure 1): hoisting crane straight ahead or retreat.Hoisting crane lift heavy or when unloaded along straight ahead, then during actual the driving, the speed V2 of front truck 100 can't be consistent continuously with the speed V1 of rear car 6, therefore, certain variation can occur apart from S between the car of front and back.At this moment, the telescopic slide function of front and back car connecting device can solve workshop, the front and back load impacting adverse effect that produces apart from the variation of S owing between the car of front and back.
For the telescopic slide function of above-mentioned front and back car connecting device, the front and back car connecting device of prior art is shown in Fig. 2-1 and Fig. 2-2:
This front and back car connecting device by slip joint a, stretch out joint b, extension arm joint c three parts and form.Slip joint a links to each other with rear car 6, and extension arm joint c links to each other with front truck 100.Slip joint a can be enclosed within on the cylinder h that stretches out joint b, and carries out relative sliding.
Two, state 2 (as shown in Figure 3): rear car drives the front truck revolution.Hoisting crane need to realize that at lift heavy or when unloaded turntable 21 rotates around getting off.At this moment, car connecting device in front and back plays the effect that the driving load of rear car 6 is passed to turntable 2.Rear car 6 passes to turntable 2 by front and back car connecting device 7 with power, so that turntable 2 can 1 rotate around getting off.Two state positions of car 6 are for driving turntable 2 around getting off 1 rotation before and state afterwards after shown in Fig. 3.
Three, state 3 (as shown in Figure 4): hoisting crane is installed.The hoisting crane installation process has realized mast 4 has been removed erected state to Fig. 1 by horizontality among Fig. 4.For mast 4 has been removed, the load of the own wt of mast 4 passes to Shears 5 by mast arm-tie d, car connecting device 7 before and after the load of Shears 5 passes to by Shears arm-tie e, front and back car connecting device 7 passes to load respectively rear car 6 and turntable 2, the load of mast 4, Shears 5 and front and back car connecting device 7 that turntable 2 is accepted 1 is passed to ground by getting off, and so far finishes the transmittance process of load.At this moment, car connecting device in front and back plays the effect of transmitting arm-tie e load.
Above-mentioned prior art scheme mainly has following characteristics:
When 1) Fig. 5-1 and Fig. 5-2 is state 2 rear cars driving front truck revolution, the load condition that front and back car connecting device is subject to, front and back car connecting device 7 is subject to the side force Fh effect that rear car 6 produces, side force Fh is passed to by slip joint a and stretches out joint b, and load is all born by the cylinder h (shown in Fig. 2-2) that stretches out joint b.
When 2) Fig. 6-1 and Fig. 6-2 is the installation of state 3 hoisting cranes, the load condition that front and back car connecting device is subject to, front and back car connecting device 7 is subject to the power F of Shears arm-tie e
eEffect, power F
eBe passed to slip joint a by stretching out joint b, load is all born by the cylinder h (shown in Fig. 2-2) that stretches out joint b.
As shown in the above, front and back car connecting device 7 mainly bears side force F
hWith Shears arm-tie power F
eTwo load, two load are to act on when two different conditions respectively on the front and back car connecting device 7, load is not to act on simultaneously, and two load all are to be transmitted by the cylinder h that stretches out joint b.
The technological deficiency of above-mentioned prior art is:
1) because the side force F that front and back car connecting device mainly bears
h, Shears arm-tie power F
eTwo load all are to be transmitted by the cylinder h that stretches out joint b, will be according to two load F so stretch out the cylinder h design of joint b
h, F
eDesigning of middle maximum;
2) because two load F
h, F
eSize differences is very large, for example F
eGenerally be F
hAbout five times, therefore, according to two load F
h, F
eDesigning of middle maximum can bring very large waste;
3) because in super-tonnage crane, Shears arm-tie power F
eVery large, so scantling of structure and the weight of stretching out the cylinder h that saves b are very large, also brought thus the difficulty of the manufacturing and the significantly increase of cost.
Summary of the invention
The objective of the invention is to propose a kind of solve car connecting device Design and manufacture difficulty before and after cause owing to the load of super-tonnage crane is excessive conventional greatly, the front and back car connecting device of the super-tonnage crane of high in cost of production problem and have the hoisting crane of this device.。
For achieving the above object, the invention provides a kind of front and back car connecting device of super-tonnage crane, comprise the joint that stretches out that the slip joint that links to each other with rear car, the extension arm that links to each other with front truck save and be connected described slip joint and extension arm joint, junction at described slip joint and rear car also is provided with arm-tie, be provided with strut in the described junction of stretching out on the joint or stretching out joint and extension arm joint, described arm-tie links to each other with the top of strut, and arm-tie, strut and described slip joint and at least part of joint formation triangular structure of stretching out.
Preferably, the length of described strut is greater than the length of arm-tie.
Preferably, described slip joint is set on the cylinder that stretches out joint, and the lower end of described strut is arranged on the described joint that stretches out away from the position of cylinder.
Preferably, described super-tonnage crane is provided with the Shears arm-tie, and the upper end of described Shears arm-tie is fixed on the Shears of hoisting crane, and the lower end of described Shears arm-tie is fixed on the junction of described arm-tie and strut.
More preferably, described arm-tie comprises the platy structure of two groups of Parallel Symmetrics, and described strut comprises the rod shaped structure of two groups of Parallel Symmetrics, is being provided with at least one group of horizontal reinforcement between described two groups of platy structures and/or between two groups of rod shaped structure.
Another object of the present invention is to provide a kind of super-tonnage crane, this hoisting crane comprises above-mentioned front and back car connecting device
Based on technique scheme, advantage of the present invention is:
Among the present invention under the hoisting crane installing condition, the slip joint of front and back car connecting device and stretch out between the joint not or few load transmission is arranged, therefore, so stretch out the restriction that the cylindrical design of joint is not subjected to Shears arm-tie load.When designing this cylinder, only need satisfy the hoisting crane straight ahead or retreat, requirement that car drives two states of front truck revolution gets final product.Because the load of these two states is compared significantly with the load of hoisting crane installing condition and is reduced, dimension, design difficulty and the manufacturing cost of car connecting device are reduced significantly before and after the invention enables.
Description of drawings
Accompanying drawing described herein is used to provide a further understanding of the present invention, consists of the application's a part, and illustrative examples of the present invention and explanation thereof are used for explaining the present invention, do not consist of improper restriction of the present invention.In the accompanying drawings:
Fig. 1 is the structural representation of hoisting crane in the prior art;
Fig. 2-1 is the structural representation of front and back car connecting device in the prior art;
Fig. 2-2 is the partial enlarged drawing of Fig. 2-1;
Fig. 3 is that rear car drives the rotating working state schematic representation of front truck;
Fig. 4 is the initial condition schematic diagram that hoisting crane is installed;
Fig. 5-1 and Fig. 5-2 is a kind of load schematic of car connecting device before and after the prior art;
Fig. 6-1 and Fig. 6-2 is the another kind of load schematic of car connecting device before and after the prior art;
Fig. 7 is that the present invention is installed in the structural representation in the hoisting crane;
Fig. 8 is lateral plan of the present invention;
Fig. 9 is structural representation of the present invention;
Figure 10-1 and Figure 10-2 is the load schematic of car connecting device before and after the present invention.
The specific embodiment
Below by drawings and Examples, technical scheme of the present invention is described in further detail.
Referring to Fig. 7, Fig. 8 and Fig. 9, the preferred embodiment of the front and back car connecting device of a kind of super-tonnage crane of the present invention shown in it, front and back of the present invention car connecting device 200 comprises the slip joint 10 that links to each other with rear car 6, extension arm 20 (as shown in Figure 7) of joint that link to each other with front truck 100 and be connected described slip joint 10 and extension arm joint 20 stretch out joint 30 (such as Fig. 8 and shown in Figure 9), junction at described slip joint 10 and rear car also is provided with arm-tie 40, be provided with strut 50 in the described junction of stretching out on the joint 30 or stretching out joint 30 and extension arm joint 20, described arm-tie 40 links to each other with the top of strut 50, and arm-tie 40, strut 50 forms triangular structure with described slip joint 10 and at least part of joint 30 that stretches out, as shown in Figure 8.The lower end that a kind of embodiment of the present invention is strut 50 is installed in stretches out on the joint 30, and another kind of embodiment is that the lower end of strut 50 is installed in the junction of stretching out joint 30 and extension arm joint 20, such as Fig. 8 and shown in Figure 9.
Preferably, the length of described strut 50 is greater than the length of arm-tie 40, so that strut 50 is close to level attitude; In normal use state, the described joint 30 that stretches out is generally horizontality with extension arm joint 20, and the length of strut 50 of the present invention is greater than the length of arm-tie 40, and for example preferably the length of strut 50 is 1.5～3 times of arm-tie 40 length, so that the loading direction that strut 50 bears is also near level.
Further, described slip joint 10 is set on the cylinder that stretches out joint 30, and the lower end of described strut 50 is arranged on described joint 30 positions away from cylinder of stretching out.
Perhaps described super-tonnage crane is provided with Shears arm-tie 70, and the upper end of described Shears arm-tie 70 is fixed on the Shears 71 of hoisting crane, and the lower end of described Shears arm-tie 70 is fixed on the junction of described arm-tie 40 and strut 50.
Preferably, referring to Fig. 9, described arm-tie 40 comprises the platy structure of two groups of Parallel Symmetrics, described strut 50 comprises the rod shaped structure of two groups of Parallel Symmetrics, be provided with at least one group of horizontal reinforcement 80 between described two groups of platy structures and/or between two groups of rod shaped structure, in the present embodiment, the rod shaped structure of two groups of Parallel Symmetrics of described strut 50 is provided with two groups of horizontal reinforcements 80, as shown in Figure 9.
Another object of the present invention is to provide a kind of super-tonnage crane, this hoisting crane has comprised except the General Construction of conventional hoisting crane, also comprises above-mentioned front and back car connecting device 200.
Particularly, working process of the present invention and principle of work are:
Hoisting crane of the present invention is furnished with the fractionation that load can be carried out both direction, and the load of self bearing that is unfavorable for after splitting can be passed to the front and back car connecting device 200 of other objects.Such as Fig. 8 and shown in Figure 9, the present invention is provided with arm-tie 40 and strut 50 between Shears arm-tie 70 and front and back car connecting device 200, and wherein arm-tie 40 links to each other with rear car 6, and strut 50 links to each other with the joint 20 that stretches out of front and back car connecting device 200.
By the present invention, so that the load condition of front and back car connecting device changes, shown in Figure 10-1 and Figure 10-2.The load F of Shears arm-tie 70
ePart F
gBe directly passed to rear car 6 by arm-tie 40, another part load F
fPass to by strut 50 and to stretch out joint 30 positions away from cylinder, and this load F
fDirection is near level, and therefore, the cylindrical structure that stretches out joint b is bearing load hardly.By Figure 10-1 and Figure 10-2, can find out front and back of the present invention car connecting device 200 slip joints 10 and stretch out between the joint 30 does not have the load transmission, or minimum load transmission is only arranged.Therefore, be not subjected to Shears arm-tie load F so stretch out the cylindrical design of joint 30
eRestriction.
Be understood that for those skilled in the art, the extension arm of connecting device joint 20 can be truss structure before and after the present invention, also can adopt box-structure to reach the object of the invention; In addition, the present invention adopts the pulling plate structure transmitted load, can adopt the structures such as tubing, rope to carry out the load transmission simultaneously; And the cylindrical structure of joint 30 shown in can figure that stretch out of the present invention can adopt square tube, polygon cylinder to reach the object of the invention simultaneously.
Obviously, those of ordinary skill in the art can with front and back car connecting device and the hoisting crane of a kind of super-tonnage crane of the present invention, consist of various types of bindiny mechanisms and weight-lifting equipment.
Should be noted that at last: above embodiment is only in order to illustrate that technical scheme of the present invention is not intended to limit; Although with reference to preferred embodiment the present invention is had been described in detail, those of ordinary skill in the field are to be understood that: still can make amendment or the part technical characterictic is equal to replacement the specific embodiment of the present invention; And not breaking away from the spirit of technical solution of the present invention, it all should be encompassed in the middle of the technical scheme scope that the present invention asks for protection.
Claims (6)
1. the front and back car connecting device of a super-tonnage crane, comprise the slip joint (10) that links to each other with rear car, the extension arm joint (20) that links to each other with front truck and be connected described slip joint (10) and extension arm saves (20) stretches out joint (30), it is characterized in that: the junction at described slip joint (10) and rear car also is provided with arm-tie (40), upper or stretch out joint (30) and be provided with strut (50) with the junction that extension arm saves (20) at the described joint (30) that stretches out, described arm-tie (40) links to each other with the top of strut (50), and arm-tie (40), strut (50) forms triangular structure with described slip joint (10) and at least part of joint (30) that stretches out.
2. front and back according to claim 1 car connecting device, it is characterized in that: the length of described strut (50) is greater than the length of arm-tie (40).
3. front and back according to claim 1 car connecting device, it is characterized in that: described slip joint (10) is set on the cylinder that stretches out joint (30), and the lower end of described strut (50) is arranged on the described joint (30) that stretches out away from the position of cylinder.
4. front and back according to claim 1 car connecting device, it is characterized in that: described super-tonnage crane is provided with Shears arm-tie (70), the upper end of described Shears arm-tie (70) is fixed on the Shears of hoisting crane, and the lower end of described Shears arm-tie (70) is fixed on the junction of described arm-tie (40) and strut (50).
5. according to claim 1 and 2 or 3 or 4 described front and back car connecting devices, it is characterized in that: described arm-tie (40) comprises the platy structure of two groups of Parallel Symmetrics, described strut (50) comprises the rod shaped structure of two groups of Parallel Symmetrics, is being provided with at least one group of horizontal reinforcement (80) between described two groups of platy structures and/or between two groups of rod shaped structure.
6. super-tonnage crane, it is characterized in that: described hoisting crane comprises the described front and back of above-mentioned any one claim car connecting device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210080863.5A CN103318777B (en) | 2012-03-23 | 2012-03-23 | Connection device for front vehicle and rear vehicle of super-tonnage crane and crane |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210080863.5A CN103318777B (en) | 2012-03-23 | 2012-03-23 | Connection device for front vehicle and rear vehicle of super-tonnage crane and crane |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103318777A true CN103318777A (en) | 2013-09-25 |
| CN103318777B CN103318777B (en) | 2015-06-24 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210080863.5A Active CN103318777B (en) | 2012-03-23 | 2012-03-23 | Connection device for front vehicle and rear vehicle of super-tonnage crane and crane |
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|---|---|
| CN (1) | CN103318777B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103935891A (en) * | 2014-04-29 | 2014-07-23 | 辽宁华原重型装备有限公司 | Crane assembly and linked connecting device thereof |
| CN112875492A (en) * | 2021-01-25 | 2021-06-01 | 青岛中科坤泰装配建筑科技有限公司 | Assembled system utility tunnel hoisting point structure that predetermines |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2149750A (en) * | 1983-11-12 | 1985-06-19 | Mannesmann Ag | Improvements in mobile cranes |
| CN201605114U (en) * | 2009-12-30 | 2010-10-13 | 徐工集团工程机械股份有限公司建设机械分公司 | Lattice type jib crane and hoisting wire rope guiding device thereof |
| CN101920911A (en) * | 2010-04-13 | 2010-12-22 | 长沙中联重工科技发展股份有限公司 | Carrier vehicle, walking control device and method thereof |
| CN102295237A (en) * | 2011-09-07 | 2011-12-28 | 长沙中联重工科技发展股份有限公司 | Crane |
| CN202542742U (en) * | 2012-03-23 | 2012-11-21 | 徐工集团工程机械股份有限公司 | Connection device for front vehicle and rear vehicle of super-tonnage crane and crane |
-
2012
- 2012-03-23 CN CN201210080863.5A patent/CN103318777B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2149750A (en) * | 1983-11-12 | 1985-06-19 | Mannesmann Ag | Improvements in mobile cranes |
| CN201605114U (en) * | 2009-12-30 | 2010-10-13 | 徐工集团工程机械股份有限公司建设机械分公司 | Lattice type jib crane and hoisting wire rope guiding device thereof |
| CN101920911A (en) * | 2010-04-13 | 2010-12-22 | 长沙中联重工科技发展股份有限公司 | Carrier vehicle, walking control device and method thereof |
| CN102295237A (en) * | 2011-09-07 | 2011-12-28 | 长沙中联重工科技发展股份有限公司 | Crane |
| CN202542742U (en) * | 2012-03-23 | 2012-11-21 | 徐工集团工程机械股份有限公司 | Connection device for front vehicle and rear vehicle of super-tonnage crane and crane |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103935891A (en) * | 2014-04-29 | 2014-07-23 | 辽宁华原重型装备有限公司 | Crane assembly and linked connecting device thereof |
| CN103935891B (en) * | 2014-04-29 | 2016-03-23 | 辽宁华原重型装备有限公司 | A kind of hoisting crane assembly and linkage connection device thereof |
| CN112875492A (en) * | 2021-01-25 | 2021-06-01 | 青岛中科坤泰装配建筑科技有限公司 | Assembled system utility tunnel hoisting point structure that predetermines |
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| Publication number | Publication date |
|---|---|
| CN103318777B (en) | 2015-06-24 |
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