CN202861730U - Boom disassembling device of telescopic boom crane - Google Patents
Boom disassembling device of telescopic boom crane Download PDFInfo
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- CN202861730U CN202861730U CN 201220482999 CN201220482999U CN202861730U CN 202861730 U CN202861730 U CN 202861730U CN 201220482999 CN201220482999 CN 201220482999 CN 201220482999 U CN201220482999 U CN 201220482999U CN 202861730 U CN202861730 U CN 202861730U
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- arm
- crane
- boom
- elevator
- pulling
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Abstract
The utility model provides a boom disassembling device of a telescopic boom crane. The boom disassembling device can improve performance of force application convenience and stability of boom disassembling and the like. The boom disassembling device of the telescopic boom crane comprises a section arm, an arm pulling winch and an amplitude cylinder, wherein a fixing end of the section arm is connected on a base seat in a hinged mode, the arm pulling winch is connected with a moving end of the section arm in a pivot mode, a pulling rope of the arm pulling winch is connected with a lifting arm of the telescopic boom crane, and the amplitude cylinder is connected with the section arm to control an included angle of the section arm and the horizontal direction through amplitude changing and then to adjust the height of the arm pulling winch. The boom disassembling device of the telescopic boom crane can adjust the height of the section arm, enables a towing point of the arm pulling to be located on the same straight line of an arm pulling point of the lifting arm, saves force needed for pulling an arm, can not cause axial-direction stress concentration of the telescopic boom due to the fact that towing force is fully acted on the arm pulling direction, and reduces damage to the crane boom from arm pulling.
Description
Technical field
The utility model relates to technical field of engineering machinery, particularly relates to a kind of arm assembly of tearing open for telescopic arm crane.
Background technology
Along with the fast development of China's economic construction, market for telescopic arm crane particularly the demand of large-tonnage telescopic arm crane day by day increase.
In recent years, along with the continuous increase of crane tonnage, also more and more higher to the requirement of telescopic arm.Often because the problem of telescopic arm need to be reprocessed, main cause is as follows for crane:
At first, do not have frock to guarantee during the processing arm, the arm pin is easy to go wrong; Secondly, the arm of hoister in large tonnage is relatively thin, and generally adopts overlap welding, and the structure of arm is larger, thereby is easy to deform; At last, the user can't pull out arm if crane breaks down in the course of the work, must get back to factory and pull out the arm processing.
Therefore, the assembling of the gib arm of crane, the difficulty of reprocessing and complexity also can increase along with the increase of crane tonnage.Especially the arm of large-tonnage and super-tonnage crane, when reprocessing to tear the arm difficulty open very large.
According to present Main Viewpoints, can adopt driving to finish the above-mentioned arm work of tearing open.Adopting tractor to tear arm open is exactly to be connected steel cable between arm and tractor, by driving or tractor arm is pulled, so that two mutually nested joint arms break away from, utilize the pulling force of tractor that arm is extracted, and then finish the arm work of tearing open gradually.
The shortcoming that above-mentioned employing tractor is torn arm open is: only rely on steel wire rope to be connected between tractor and the arm, the towing point of tractor and the towing point of arm are difficult to remain on the same straight line, therefore, required tractive force is larger, and the stability of arm is also poor in the distraction procedure.And the fastness that is connected between rope rig and the arm is not high, and steel wire rope just is easy to split away off, and the potential safety hazard of tearing arm open is very large.
Therefore, according to existing main flow thinking, the equal difficulty such as arm difficulty, security of tearing open of telescopic arm crane has than quantum jump; Want to reduce to tear open arm tractive force, improve the security tear arm open and must look for another way.How the tearing the arm security open, reduce to tear open the tractive force of arm of Effective Raise telescopic arm crane is the present technical issues that need to address of those skilled in the art.
The utility model content
The purpose of this utility model provides a kind of arm assembly of tearing open of telescopic arm crane, this is torn arm assembly open and can so that the towing point of the arm of power source and telescopic arm crane be on the same straight line, and then promote the application of force convenience tear arm open, tears the performance such as arm stability open.
For solving the problems of the technologies described above, the utility model provides a kind of arm assembly of tearing open of telescopic arm crane, comprising:
The joint arm is hinged on the pedestal with its stiff end;
Pull out the arm elevator, with the movable end pivot joint of described joint arm, the described stay cord that pulls out the arm elevator links to each other with the arm of described telescopic arm crane;
Derricking cylinder links to each other with described joint arm, in order to control the angle of described joint arm and horizontal direction by luffing, and then adjusts the described height that pulls out the arm elevator.
Preferably, described derricking cylinder is amplitude oil cylinder.
Preferably, also be provided be used to controlling described the first control stick that pulls out the rotating of arm elevator.
Preferably, also be provided be used to the second control stick of adjusting described derricking cylinder lifting.
Preferably, described joint arm comprises mutually nested first segment arm and second section arm, and the stiff end of described first segment arm is hinged on the described pedestal, and the movable end of described second section arm and the described arm elevator that pulls out articulate.
Preferably, the junction of described first segment arm and second section arm is provided with hinged seat, and the ultrasonic transformer of described derricking cylinder is connected on the described hinged seat.
Because derricking cylinder links to each other with the joint arm, the above-mentioned arm assembly of tearing open just can be by the luffing control joint arm of derricking cylinder and the angle (namely saving the angle of inclination of arm) of horizontal direction, adding and pulling out the arm elevator is the movable end that is journaled into the joint arm, the swing of joint arm will change the height that pulls out the arm elevator, and is final so that pull out the towing point of arm elevator and crane semi-girder and be on the same horizontal line; Then backward rotation elevator, the stay cord on the elevator is tightened up, and stay cord constantly draws arm and stretches out, until arm is pulled out.The utility model pulls out arm by pulling out the arm elevator to telescopic arm crane, has avoided adopting driving to pull out the security hidden trouble that arm produces; The adjustment of derricking cylinder can be so that pull out the towing point of arm elevator and arm and be on the same straight line in addition, that is to say that the power source and the point of application that pull out arm are on the same level line, all power is all be used to pulling out the arm acting, can not produce extra useless component, pull out the required tractive force of arm under the square one and also just reduced, more time saving and energy saving; Secondly, derricking cylinder can carry out the luffing setting according to the length of different telescopic crane booms, thereby adapts to the arm of tearing open of dissimilar telescopic arm crane; Again, the tractive force that arm is subject to can not produce basically perpendicular to the component on its axis direction, just can not cause the axial stress of telescopic arm to concentrate yet.
A kind of preferred embodiment in, the joint arm comprises mutually nested first segment arm and second section arm, the second section arm is with respect to the flexible length that can change the joint arm of first segment arm, and then matches with derricking cylinder, finishes the adjustment of pulling out arm elevator height, simple operation.
Description of drawings
Fig. 1 provides the structural representation of tearing a kind of specific embodiment of arm assembly open for the utility model;
Fig. 2 is that the axle of tearing arm assembly open shown in Figure 1 measures intention;
Fig. 3 provides hydraulic system principle figure when tearing arm assembly open and adopting hydraulic pressure to drive for the utility model.
The specific embodiment
Core of the present utility model provides a kind of arm assembly of tearing open for telescopic arm crane, and this is torn arm assembly open and can lift crane tears the application of force convenience of arm open, tears the performances such as arm stability open.
In order to make those skilled in the art person understand better the utility model scheme, the utility model is described in further detail below in conjunction with the drawings and specific embodiments.
Please refer to Fig. 1 and Fig. 2, Fig. 1 provides the structural representation of tearing a kind of specific embodiment of arm assembly open for the utility model; Fig. 2 is that the axle of tearing arm assembly open shown in Figure 1 measures intention.
In a kind of specific embodiment, the arm assembly of tearing open provided by the utility model comprises the joint arm, pull out arm elevator 3, pedestal 8 and derricking cylinder 4, the joint arm is arranged on the pedestal 8, the joint arm can be a joint, two joint or mutually nested more pieces, the joint arm has stiff end 11 and movable end 21, the joint arm is hinged on the pedestal 8 with its stiff end 11, pull out the movable end 21 that arm elevator 3 is articulated in the joint arm, the stay cord 32 that pulls out arm elevator 3 links to each other with the arm of telescopic arm crane, derricking cylinder 4 links to each other with the joint arm, the luffing of derricking cylinder 4 can change the angle (namely saving the inclined degree of arm) of joint arm and horizontal direction, the change at joint arm angle of inclination causes the variation of movable end 21 height accordingly, because the movable end 21 of joint arm is connected with and pulls out arm elevator 3, the height that pulls out arm elevator 3 also changes thereupon.By above-mentioned luffing motion, the final towing point that pulls out arm elevator 3 and arm of adjusting is on the same straight line.
When pulling out arm, at first the arm with telescopic arm crane links to each other with the stay cord 32 that pulls out arm elevator 3, then according to the height landing derricking cylinder 4 of arm, and then adjusts and pulls out the height of arm elevator 3, is on the same straight line so that pull out the towing point of arm elevator 3 and arm; Then backward rotation is pulled out arm elevator 3, and stay cord 32 constantly tightens up, stay cord 32 pulling arm motions, and final arm is pulled out.The utility model is simple in structure, by the counter-rotating of pulling out the arm elevator arm is extracted gradually, and power source and the point of application are on the same straight line, has avoided adopting driving to pull out the security hidden trouble that produces in the arm process; Simultaneously, because power source and the point of application are in same straight line, basically there is not the component perpendicular to the arm direction, just avoided the axial stress concentration problem of arm yet; The power that pulling out arm elevator 3 provides almost completely is used for pulling out the arm acting, and is more time saving and energy saving.
Particularly, pull out arm elevator 3 and can comprise reel 31, stay cord 32 is wrapped on the reel 31, stay cord 32 can be steel wire rope, also can be the larger rigging of other strength ratios, reel 31 can be journaled into the head end (as shown in Figure 2) of second section arm 2, and an end of stay cord 32 links to each other with the arm of telescopic arm crane, the rotating of pulling out arm elevator 3 realizes the tension of stay cord 32 or loosens, and then arm is extracted.
Can the arm assembly of tearing open mentioned above be further improved.
As shown in fig. 1, the arm assembly of tearing open of the present utility model can also be provided be used to controlling described the first control stick 5 that pulls out 3 for the rotatings of arm elevator.The first control stick 5 can arrange three gears of upper, middle and lower, when the first control stick 5 is in meta, pulls out arm elevator 3 and remains static, and pulls out arm elevator 3 and does not rotate; When the first control stick 5 is in when upper, pull out arm elevator 3 forwards, the stay cord 32 on the reel 31 is loosened; When the first control stick 5 is in when the next, pull out 3 for the counter-rotatings of arm elevator, thereby the stay cord 32 on the reel 31 is tightened up.
In addition, can also be equipped be used to the second control stick 6 of controlling described derricking cylinder 4 liftings.The second control stick 6 can arrange up and down two gears, when the second control stick 6 is in when the next, derricking cylinder 4 externally hoists under the promotion of power, drives the joint arm and moves upward, and then will pull out the height that arm elevator 3 is pushed to regulation, the towing point that pulls out arm elevator 3 and arm is on the same straight line; When the second control stick 6 is in when upper, derricking cylinder 4 externally descends under the drive of power, drives joint arm (this moment second section arm 2 be pulled out) and descends thereupon, and the joint arm falls back to original position.
When not pulling out the arm action, can under the effect of derricking cylinder 4, will save arm and put down fully, the joint arm is fitted on the pedestal 8, and the whole arm assembly that pulls out is packed up fully, carries and store all more convenient.
In the another kind of specific embodiment, the joint arm comprises first segment arm 1 and the second section arm 2 of mutually nested setting, second section arm 2 is sleeved on first segment arm 1 inside, first segment arm 1 and second section arm 2 have respectively stiff end 11 and movable end 21, first segment arm 1 is hinged on the pedestal 8 by stiff end 11, pull out the movable end 21 that arm elevator 3 just is journaled into second section arm 2, as shown in Figure 2.
The joint arm adopts two mutually nested joints to arrange, and second section arm 2 relatively first segment arm 1 stretches out or retracts, and that is to say that the length of joint arm itself is adjustable.So just can realize by the adjustment of joint arm lengths the adjustment of joint arm movable end 21 height, then cooperatively interact with derricking cylinder 4, realize pulling out the adjustment of arm elevator 3 height, so that it is higher to pull out the precision of arm, the speed of Height Adjustment is faster, pulls out arm also just more precisely and save time.
For better realizing the luffing action of derricking cylinder 4, can special hinged seat 7 be set at first segment arm 1, derricking cylinder 4 just is connected with this hinged seat 7.Derricking cylinder 4 can arrange ultrasonic transformer, in the end of ultrasonic transformer through hole is set, and then is hinged on the hinged seat 7 by the through hole on the ultrasonic transformer, and then realizes the adjustment at joint arm angle of inclination by ultrasonic transformer and hinged seat 7.
Described hinged seat 7 can be arranged on the junction of described first segment arm 1 and second section arm 2, also can be arranged on the cephalic par (other end relative with stiff end 11) of first segment arm 1, the position of hinged seat 7 is more near second section arm 2, derricking cylinder 4 just can better be realized the control to second section arm 2, can with the power second section arm 2 that passes to as much as possible, drive second section arm 2 and finish lifting like this.
Above-mentioned derricking cylinder can be amplitude oil cylinder.
When above-mentioned derricking cylinder 4 was amplitude oil cylinder, the arm assembly of tearing open of the present utility model was by the lifting of the hydraulic system realization second section arm 2 of amplitude oil cylinder, and the utility model illustrates only take this kind situation as example the utility model is how to realize tearing open arm.
Please refer to Fig. 3, Fig. 3 provides hydraulic system principle figure when tearing arm assembly open and adopting hydraulic pressure to drive for the utility model.
In the third specific embodiment, the arm assembly of tearing open provided by the utility model is finished by hydraulic system shown in Figure 3 and is torn accordingly arm action open:
(1) first control stick 5 is in meta, and power source and hoist motor 10 disconnect, and hoist motor 10 remains static, and can not drive pulling out arm elevator 3, pulls out arm elevator 3 static, and stay cord 32 also remains static;
(2) pull the second control stick 6 the next, oil in the oil pump 9 constantly moves to derricking cylinder 4 by petroleum pipeline, derricking cylinder 4 large chamber oil-feeds, loculus oil return, begun luffing through behind the balanced valve 00, drive successively first segment arm 1 and second section arm 2 moves upward, finish at last hoisting of second section arm 2, second section arm 2 is transported to the height (be on the second section arm 2 the towing point that pulls out arm elevator 3 and arm be on the same straight line) of regulation;
(3) pulling the first control stick 5, that it is in is upper, and power source links to each other with hoist motor 10, and hoist motor 10 drives and pulls out 3 for the counter-rotatings of arm elevator, and stay cord 32 constantly tightens up until keep tensioning state, and stay cord 32 is fixed;
(4) pull out arm elevator 3 and continue counter-rotating, stay cord 32 constantly draws the arm of crane, and arm constantly is pulled out, until the arm of crane is extracted the arm cover of its nested joint arm fully, finishes the dismounting action of arm;
(5) the first control stick 5 is pulled the next, pulled out arm elevator 3 forwards, stay cord 32 is loosened, and treats that stay cord 32 relax to appropriate length, and the first control stick 5 is turned back meta, pulls out arm elevator 3 fixing, and stay cord 32 separates with arm;
(6) then pull the second control stick 6 to upper, derricking cylinder 4 loculus oil-feeds, large chamber oil return, derricking cylinder 4 drives first segment arm 1 and second section arm 2 lands downwards, until get back to original position, be the follow-up arm ready (perhaps first segment arm 1 and second section arm 2 are attached on the pedestal 8 fully, conveniently tear the transportation of arm assembly open) of tearing open.
The above arm assembly of tearing open to telescopic arm crane provided by the utility model is described in detail.Used specific case herein principle of the present utility model and embodiment are set forth, the explanation of above embodiment just is used for helping to understand core concept of the present utility model.Should be understood that; for those skilled in the art; under the prerequisite that does not break away from the utility model principle, can also carry out some improvement and modification to the utility model, these improvement and modification also fall in the protection domain of the utility model claim.
Claims (6)
- A telescopic arm crane tear arm assembly open, it is characterized in that, comprising:The joint arm is hinged on the pedestal with its stiff end;Pull out the arm elevator, with the movable end pivot joint of described joint arm, the described stay cord that pulls out the arm elevator links to each other with the arm of described telescopic arm crane;Derricking cylinder links to each other with described joint arm, in order to control the angle of described joint arm and horizontal direction by luffing, and then adjusts the described height that pulls out the arm elevator.
- 2. the arm assembly of tearing open as claimed in claim 1 is characterized in that, described derricking cylinder is amplitude oil cylinder.
- 3. the arm assembly of tearing open as claimed in claim 1 is characterized in that, also is provided be used to controlling described the first control stick that pulls out the rotating of arm elevator.
- 4. the arm assembly of tearing open as claimed in claim 1 is characterized in that, also is provided be used to the second control stick of adjusting described derricking cylinder lifting.
- 5. such as each described arm assembly of tearing open of claim 1 to 4, it is characterized in that, described joint arm comprises mutually nested first segment arm and second section arm, and the stiff end of described first segment arm is hinged on the described pedestal, and the movable end of described second section arm and the described arm elevator that pulls out articulate.
- 6. the arm assembly of tearing open as claimed in claim 5 is characterized in that, the junction of described first segment arm and second section arm is provided with hinged seat, and the ultrasonic transformer of described derricking cylinder is connected on the described hinged seat.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220482999 CN202861730U (en) | 2012-09-20 | 2012-09-20 | Boom disassembling device of telescopic boom crane |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220482999 CN202861730U (en) | 2012-09-20 | 2012-09-20 | Boom disassembling device of telescopic boom crane |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202861730U true CN202861730U (en) | 2013-04-10 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220482999 Expired - Fee Related CN202861730U (en) | 2012-09-20 | 2012-09-20 | Boom disassembling device of telescopic boom crane |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202861730U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102825447A (en) * | 2012-09-20 | 2012-12-19 | 徐州重型机械有限公司 | Arm dismounting device of telescopic boom crane |
-
2012
- 2012-09-20 CN CN 201220482999 patent/CN202861730U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102825447A (en) * | 2012-09-20 | 2012-12-19 | 徐州重型机械有限公司 | Arm dismounting device of telescopic boom crane |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130410 Termination date: 20190920 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |