CN213294489U - Anti-sway hoisting machinery for road construction - Google Patents
Anti-sway hoisting machinery for road construction Download PDFInfo
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- CN213294489U CN213294489U CN202120774709.2U CN202120774709U CN213294489U CN 213294489 U CN213294489 U CN 213294489U CN 202120774709 U CN202120774709 U CN 202120774709U CN 213294489 U CN213294489 U CN 213294489U
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Abstract
本实用新型涉及用于道路修建的防摆动起重机械，包括车载臂式起重机，车载臂式起重机上能伸缩的臂缸架经油缸A支撑设置在底座上，臂缸架的端头绕设有钢丝绳，钢丝绳上吊设有吊钩；还包括柔性削减部、刚性削减部；柔性削减部，包括多个同轴心的环形单元，多个环形单元经周向设置的拉绳相连地形成拉力结构，钢丝绳从该拉力结构的中心穿过且两者一起与吊钩相连，拉力结构的顶端设置在臂缸架的端头处；刚性削减部，包括油缸B，油缸B的底端铰接臂缸架上而输出端头可拆卸地与拉力结构中最下端的环形单元相连。本实用新型达到的有益效果是：多重削减吊装物动作、能有效防止吊装物摆动和转动、极大地提高了安全性、能实现吊装物自动转向调节。
The utility model relates to an anti-swing hoisting machine for road construction, comprising a vehicle-mounted boom crane. A telescopic boom cylinder frame on the vehicle-mounted boom type crane is supported and arranged on a base by an oil cylinder A, and the end of the boom cylinder frame is provided with a The steel wire rope is hung with a hook; it also includes a flexible cutting part and a rigid cutting part; the flexible cutting part includes a plurality of concentric annular units, and the plurality of annular units are connected by the circumferentially arranged pulling ropes to form a tension structure, The wire rope passes through the center of the tension structure and the two are connected to the hook together. The top end of the tension structure is arranged at the end of the arm cylinder frame; the rigid reduction part includes the oil cylinder B, and the bottom end of the oil cylinder B is hinged on the arm cylinder frame And the output end is detachably connected to the lowermost annular unit in the tension structure. The beneficial effects achieved by the utility model are as follows: multiple actions of the hoisting object are reduced, the hoisting object can be effectively prevented from swinging and rotating, the safety is greatly improved, and the automatic steering adjustment of the hoisting object can be realized.
Description
Technical Field
The utility model relates to a hoisting equipment's technical field especially is used for the anti-swing hoisting machinery of road construction.
Background
The crane is generally divided into four categories, namely a light and small-sized hoisting device, a bridge type hoisting device, a cantilever crane type hoisting device and a cable crane, according to different structures and performances. However, in any type, the hoisting device can swing, swing and rotate in the hoisting process.
The following hazards are generated: the lifting safety is influenced, the collision can be caused by swinging in the process of carrying, the ground personnel are injured, and the falling and other conditions are easily caused; the hoisting efficiency is influenced, and because the hoisted object swings greatly in the air, a driver can take down the object after the object reaches a specified position and stays for a period of time; the hoisting precision is influenced, and the installation may not be in place due to swinging, so that the whole quality is influenced, and the use is further influenced.
The reason is probably caused by inertia, and when the hoisted object is hoisted, the hoisted object suddenly stops and moves, and large swing can occur under the action of inertia; the friction may also be caused, and the swinging can occur in the hoisting process due to the friction among the steel wire rope, the winding drum and the crane chassis; it may also be caused by external forces, such as wind, rain, snow, etc., and the larger the hoisted object, the more violent the swing.
In actual work process, in order to reduce the emergence of this kind of condition, often tie up a rope at the both ends of hoist and mount thing, the people is pulling the rope at both ends, is on the one hand for preventing that hoist and mount thing is rotatory, and on the other hand people pull the rope and also can reduce the goods swing. However, when a person pulls the rope, the hoisted object is easy to be pulled and deviated from the hook, so that the hoisted object slips off, and great potential safety hazards exist. Especially, heavy hoisted objects are difficult to pull by people and high in danger in this way, and are fatal in case of accidents, so that the structure of equipment in the hoisted objects needs to be improved, and the actions of the hoisted objects are reduced fundamentally.
Based on the reasons, the crane is improved mainly aiming at heavy hoisted objects (also can be used for hoisting with medium and small weight), so that a new hoisting mode is formed, swing is reduced as much as possible, rotation is weakened, and automatic rotation can be realized.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to overcome prior art's shortcoming, provide multiple reduction hoist and mount thing action, can effectively prevent hoist and mount thing swing and rotation, greatly improve the security, can realize the anti-swing jack-up machinery that is used for road construction of hoist and mount thing automatic steering regulation.
The purpose of the utility model is realized through the following technical scheme: the anti-swing hoisting machine for road construction comprises a vehicle-mounted jib crane, wherein a telescopic jib cylinder frame on the vehicle-mounted jib crane is supported on a base through an oil cylinder A, a steel wire rope is wound at the end of the jib cylinder frame, and a lifting hook is hung on the steel wire rope;
the device also comprises a flexible cutting part and a rigid cutting part;
the flexible cutting part comprises a plurality of coaxial annular units, the annular units are connected through a pulling rope arranged in the circumferential direction to form a pulling force structure, a steel wire rope penetrates through the center of the pulling force structure and is connected with a lifting hook together, and the top end of the pulling force structure is arranged at the end of the arm cylinder frame;
the rigidity reducing part comprises an oil cylinder B, the bottom end of the oil cylinder B is hinged to the arm frame, and the output end is detachably connected with the annular unit at the lowest end in the tension structure.
Furthermore, the annular unit comprises a central ring, an inner ring and an outer ring which are supported from inside to outside and have the same axle center, and the steel wire rope passes through the center of the central ring; the annular unit circumference is provided with a plurality of and rotates the wheel, rotates to take turns to around being equipped with the stay cord, and the annular unit of top links to each other with the adjacent annular unit in below through the rotation wheel on it, stay cord, and it is continuous with positive and negative self-locking motor drive to rotate the wheel. Namely, the spacing between the annular units is adjusted by rotating the wheels and the pull ropes. When the electric motor works, all the positive and negative self-locking motors on one annular unit act synchronously.
Furthermore, the annular units comprise A-type units and B-type units, and the A-type units and the B-type units in the tension structure are arranged at intervals along the vertical direction; in the A-type unit, a rotating wheel is arranged between an inner ring and an outer ring through a rotating shaft; in the B-type unit, a rotating wheel is positioned between a central ring and an inner ring; the rotating wheel of the A-type unit is connected with the inner ring of the B-type unit below the A-type unit through a pull rope, and the rotating wheel of the B-type unit is connected with the outer ring of the A-type unit below the B-type unit through a pull rope to form trumpet-shaped circumferential tension. The trumpet-shaped pulling force is beneficial to the stability of the whole pulling force structure, and the rotation and the swing are weakened.
Furthermore, two ends of the rotating wheel are provided with end cylinders, and the end surfaces of the end cylinders are provided with balls; the balls in the A-type unit are pressed on the inner ring and the outer ring, and the balls in the B-type unit are pressed on the central ring and the inner ring. Realize rotating the smooth rotation of wheel, avoid appearing the dead condition of card.
Furthermore, the uppermost annular unit in the tension structure is hinged with a mounting frame through a circumferentially arranged oil cylinder C, and the mounting frame is fixed at the end of the arm cylinder frame; and a level ruler angle measuring instrument is arranged on the annular unit positioned at the top, is electrically connected with the oil cylinder C through a control panel and controls the annular unit positioned at the top to be always in a horizontal position. The annular unit is ensured to form horn-shaped pulling force by taking a vertical line as an axis.
Furthermore, a connector is fixedly arranged in a central ring of the lowest annular unit in the tension structure in a penetrating manner; the top of the connecting head is connected with the steel wire rope through a pulley; the lower part of the connector extends out of the central ring and is columnar, a lifting hook is welded and fixed on the lower part, and the lower part is connected with a driving motor through a driven wheel and a driving wheel in a driving way; the driving motor is fixed on the lower surface of the lowermost annular unit. The rotation of the lifting hook is realized through the driving motor, so that the direction adjustment of a lifted object is realized, the manual adjustment by a large margin is avoided, and the subsequent construction or installation is facilitated.
Furthermore, in the rigidity reducing part, a cylinder barrel of the oil cylinder B is hinged with the output end of the oil cylinder D, and the oil cylinder D is hinged on the arm cylinder frame; the end of the oil cylinder B is provided with a force application head which can rotate along a vertical surface, the lowermost annular unit in the tension structure is provided with corresponding insertion lugs, and the insertion lugs and the force application head are connected with the binding ropes through pin holes. The rigidity reducing part mainly prevents the lowermost annular unit from rotating and swinging to a certain extent, and plays an auxiliary role.
Furthermore, the number of the oil cylinders B and the number of the oil cylinders D are two, and the two oil cylinders B and the oil cylinders D are correspondingly connected one by one; the two oil cylinders B are detachably connected with the annular unit at the lowest part of the tension structure in an included angle shape. Thus, the rigidity reducing part can form two force application points on the lowest annular unit, the two oil cylinders B and the arm cylinder frame can form a triangular shape, and the stability of rigid force application is ensured.
Furthermore, the mounting frame is C-shaped, and the notch is matched with the arm cylinder frame; a pulley for limiting the steel wire rope is arranged on the mounting frame; the mounting frame is hinged with the uppermost annular unit through a universal joint.
The utility model has the advantages of it is following:
(1) in the flexible reducing part, a tension structure formed by the annular unit and the pull rope applies force to the lifting hook together with the steel wire rope, the force of the tension structure can generate component force in a horizontal plane, and the component force can effectively prevent the lifting object on the lifting hook from swinging and rotating;
(2) in the rigidity reducing part, the oil cylinder B and the force application head apply force to the lowest annular unit, so that the force is indirectly applied to the lifting hook; when the flexible reducing part reduces the swing and rotation to a great extent, the rigid reducing part starts to act, the swing and rotation can be further reduced, and particularly, the flexible reducing part has a good effect on the rotation;
(3) in the flexible reduction part, the installation frame and the annular unit are arranged, so that the annular unit can be ensured to be positioned in a horizontal plane, a horn pulling force with a vertical line as an axis can be formed, and good swinging and rotating reduction effects are ensured;
(4) in the flexible weakening part, the connectors, the lifting hooks, the annular units and the driving motor are arranged, so that the rotation of the lifting hooks is realized, the rotation adjustment of a hoisted object is indirectly realized, the steering through artificial rope pulling is avoided, and the potential safety hazard is greatly reduced;
(5) in the rigidity reducing part, two oil cylinders B are arranged to form two force application points which can form a triangle together with the arm cylinder frame, and the stability is good, and the rotation of the lifting hook can be well prevented.
Drawings
FIG. 1 is a schematic structural view of a hoisting lowest end;
FIG. 2 is a schematic structural view of the highest end of the hoisting;
FIG. 3 is a schematic view of the entire mechanical furling;
FIG. 4 is a schematic structural view of the arrangement between the upper part of the tensile structure and the arm cylinder frame;
FIG. 5 is a partial schematic view of a middle portion of the tension structure;
FIG. 6 is a schematic view of the structure between the lower portion of the tension structure and the hook;
FIG. 7 is a schematic view of the structure after the pulling force structure is removed;
FIG. 8 is a schematic structural view of a type A unit;
FIG. 9 is an enlarged view of a portion of FIG. 8;
FIG. 10 is a schematic structural view of a B-type unit;
FIG. 11 is a schematic structural view of the mounting bracket;
in the figure: 1-vehicle-mounted arm crane, 2-arm cylinder frame, 3-oil cylinder A, 4-base, 5-steel wire rope, 6-lifting hook, 10-flexible reducing part, 11-annular unit, 1101-inserting lug, 12-pulling rope, 13-center ring, 14-inner ring, 15-outer ring, 16-rotating wheel, 1601-end barrel, 1602-rolling ball, 17-positive and negative self-locking motor, 18-mounting frame, 19-connecting head, 20-driving wheel, 21-driving motor, 22-oil cylinder C, 23-driven wheel, 50-rigid reducing part, 51-oil cylinder B, 52-oil cylinder D, 53-force application head.
Detailed Description
The invention will be further described with reference to the accompanying drawings, but the scope of the invention is not limited to the following description.
As shown in fig. 1 to 6 and fig. 8 to 11, the swing-proof crane for road construction includes a vehicle-mounted jib crane 1, and the vehicle-mounted jib crane 1 is provided with a flexible reducing part 10 to apply force to a hook 6 from various directions to reduce swing and rotation of the hook; then, the reduction of the swing and the rotation is further continued by the rigidity reducing portion 50, so that the swing and the rotation are small when the hoisted object is hoisted, and the safety is improved.
For the vehicle-mounted crane 1, the vehicle-mounted crane is provided with an extensible arm cylinder frame 2, one end of the arm cylinder frame 2 is hinged to a base 4, and a cylinder barrel of the arm cylinder frame 2 is hinged to the base 4 through an oil cylinder A3; the end of the wall cylinder frame 2 is wound with a steel wire rope 5, and the steel wire rope 5 is hung with a lifting hook 6.
As shown in fig. 1 and 5, the flexible cut-away portion 10 includes a plurality of concentric annular units 11 therein, the plurality of annular units 11 are arranged at intervals in the up-down direction, and all the annular units are coaxially arranged; the upper annular unit 11 is connected with the lower adjacent annular unit 11 through a plurality of pull ropes 12 arranged axially, so that a tension structure is formed; the plurality of axially arranged strings 12 are combined to form a trumpet shape.
The uppermost annular unit 11 of the tension structure is connected with the arm cylinder frame 2, and the lowermost annular unit 11 is provided with a lifting hook; and the wire rope 5 passes through the axis of the ring unit 11.
It can be known that the lifting object on the lifting hook 6 receives two parts: partly the vertical upward force created by the wire rope 5; the other part is a horn-shaped pulling force formed by the ring unit 11 and the pulling rope 12 and taking the steel wire rope 5 as an axis.
The cutting principle of the flexible cut 10 can thus be derived: because the traditional steel wire rope 5 only has a vertically upward pulling force and no constraint force in the horizontal direction, the swing is easy to occur, and meanwhile, no torque force for resisting the rotation of a hoisted object exists; in the scheme, the steel wire rope 5 has a horn-shaped pulling force in addition to a starting force, the horn-shaped pulling force is inclined, component force can be generated in a horizontal plane, namely the pulling force is circumferentially applied to the lifting hook 6 in the horizontal plane, and the swinging of a hoisted object can be weakened to a great extent; meanwhile, the horizontal component force is in the radial direction, when the hoisted object rotates, the horizontal component force is not in the radial direction, and component force is formed in the tangential direction, and the rotation of the hoisted object can be prevented to a certain extent by the tangential component force.
To create the effect of the flexible cutback 10 described above, it is preferable that:
as shown in fig. 5, 8 and 9, the annular unit 11 includes a central ring 13, an inner ring 14 and an outer ring 15 from inside to outside, which are supported and arranged coaxially, and the steel cable 5 passes through the center of the central ring 13; a plurality of rotating wheels 16 are arranged on the annular unit 11 in the circumferential direction, and the pull rope 12 is wound on the rotating wheels 16; the upper ring unit 11 is connected to the lower adjacent ring unit 11 by a rotating wheel 16 and a pull rope.
The rotating wheel 16 is in driving connection with the positive and negative self-locking motor 17, namely the positive and negative self-locking motor 17 rotates the rotating wheel 16 to realize the distance adjustment between the annular units 11. On one annular unit 11, all the positive and negative self-locking motors 17 are required to synchronously act, and the lifting height is constant, so that the annular unit 11 is ensured to be in a horizontal state.
In order to improve the anti-swing and anti-rotation effect, a large horizontal pulling force needs to be formed in the horizontal plane: therefore, when one of the ring units 11 is pulled by the upper cord 12 to form a flared shape, the lower cord 12 also forms a flared pulling force. The specific principle is as shown in fig. 1, wherein the upper and lower positions of one of the annular units 11 receive horn-shaped pulling forces, so that the two pulling forces can generate a resultant force in the same direction in the horizontal plane, and finally the effect of improving the total pulling force in the horizontal plane is achieved.
Similarly, the upper and lower positions of one of the ring units 11 may also form a shape of a horn which is retracted inward, and only the horizontal force is directed toward the circular shape, but the total resultant force is still large.
The concrete implementation structural measures are as follows: the annular units 11 are divided into A-type units and B-type units, and the A-type units and the B-type units in the tension structure are arranged at intervals in the vertical direction; in the a-type unit, a rotating wheel 16 is provided between an inner ring 14 and an outer ring 15 via a rotating shaft; in the B-type unit, the rotating wheel 16 is located between the center ring 13 and the inner ring 14. The rotating wheel 16 of the A-type unit is connected with the inner ring 14 of the B-type unit below the A-type unit through the pull rope 12, and the rotating wheel 16 of the B-type unit is connected with the outer ring 15 of the A-type unit below the B-type unit through the pull rope 12 to form a trumpet-shaped circumferential pulling force.
Preferably, in order to allow the rotating wheel 16 to rotate smoothly without jamming, as shown in fig. 9: end barrels 1601 are arranged at two ends of the rotating wheel 16, and balls 1602 are arranged on the end faces of the end barrels 1601; the balls 1602 in the a-unit rest on the inner ring 14 and the outer ring 15, and the balls 1602 in the B-unit rest on the center ring 13 and the inner ring 14.
For the installation of the tensile structure, as shown in fig. 4: the end of the arm cylinder frame 2 is provided with a mounting frame 18, the mounting frame 18 is C-shaped, and the gap is matched with the arm cylinder frame 2; the mounting frame 18 is connected with the uppermost annular unit 11 in the tension structure through a cylinder C22 arranged in the circumferential direction, and the joint is a hinge joint.
The steel wire rope 5 penetrates through the center of the mounting frame 18, and the mounting frame 18 plays a role in limiting the steel wire rope 5; corresponding pulleys are arranged on the left and right of the mounting frame 18.
Since the mounting frame 18 rotates together when the arm cylinder frame 2 rotates, it may cause the ring unit 11 not to be in the horizontal plane, in order to avoid this: and a level angle measuring instrument is arranged on the uppermost annular unit 11 of the tension structure and is electrically connected with the oil cylinder C22 through a control panel to control the uppermost annular unit 11 to be always in a horizontal position.
The hook 6 is mounted on the lowermost loop unit 11 of the tension structure as shown in figure 6: a connector 19 is fixedly arranged in the central ring 13 of the lowermost annular unit 11 in the tension structure in a penetrating way. The top of the connector 19 is connected with the steel wire rope 5 through a pulley; the lower part of the connector 19 extends out of the central ring 13 and is columnar, and the lower part is welded and fixed with a lifting hook. I.e. the hooks 6 and the lowermost ring unit 11 are integral
Because the hoist and mount thing of this scheme major user's heavy weight need not artificial big heavy object of rotating as far as possible after hoist and mount, difficultly very, in case the landing threatens life's incident exactly, consequently this scheme realizes automatic the rotation, as shown in fig. 6: a driven wheel 23 is arranged at the lower part of the connecting head 19, the driven wheel 23 is connected with a driving wheel 20 through a chain, the driving wheel 20 is arranged at the output end of a driving motor 21, and the driving motor 21 is fixed on the lower surface of the corresponding annular unit 11. When the angle of the hoisting object needs to be adjusted, the connector 19 is driven to rotate by the driving motor 21, and the connector 19 drives the lifting hook 6 to rotate.
It is stated that: the steel wire rope 5 still bears most of the pulling force on the hoisted object and is provided with a corresponding winch; the annular unit 11 only acts as a certain auxiliary pulling force, which is mainly to prevent swinging and rotation; even if the pulling force of the annular unit 11 on the lifting hook 6 is zero, normal lifting can still be realized.
It should be noted that: the scheme is mainly used for hoisting heavy objects, the hoisted objects cannot be forced to swing or rotate rigidly, otherwise the whole equipment is easy to tip over due to large inertia, and therefore the flexible cutting part 10 is used for cutting down firstly, and then the rigid cutting part 50 is used for further cutting down.
As mentioned above, the flexible cut 10 provides a good effect in preventing the swing, but the effect is not very significant in preventing the rotation, and therefore the rigid cut 50 is introduced.
As shown in fig. 1 to 3, the rigidity-reduced portion 50: the hydraulic arm cylinder comprises a cylinder B51 and a cylinder D52, wherein one end of the cylinder B51 is hinged on the arm cylinder frame 2, and the other end of the cylinder B51 is provided with a force application head 53; the cylinder B52 has one end hinged to the arm cylinder frame 2 and the other end hinged to the cylinder barrel of the cylinder B51. In the tension structure, the lowermost annular unit 11 is provided with corresponding insertion lugs 1101, and the insertion lugs 1101 and the force application head 53 are connected with the binding rope through pin holes.
When rotation occurs, the applicator head 53 applies a force to the insert 1101, thereby avoiding over-rotation. Although named as the rigid cutback 50, the force head 53 is spaced from the pin lug 1101 and is in the form of a lashing wire, yet is flexible to the extent that it is allowed to swing and rotate, again to avoid tipping of the overall apparatus. And the arrangement of clearance and wiring also is in order to guarantee: in operation, the flexible cut-away portion 10 is operated, and the rigid cut-away portion 50 is operated when the swing and rotation reach a certain range. In other words, if the amplitude of the swing and rotation is small, the flexible cut-off 10 can achieve the cutting effect, and the rigid cut-off 50 is not operated at all; when the amplitude of the swing and the rotation reaches a certain degree, the swing and the rotation act together.
In this embodiment, in order to have two oil cylinders B51 and D52, the two oil cylinders are connected in a one-to-one correspondence; the two oil cylinders B51 are detachably connected with the annular unit 11 at the lowest part of the tension structure in an included angle shape. Thus, the rigidity reducing portion 50 can form two points of application of force to the lowermost ring unit 11, and the two cylinders B51 and the arm cylinder frame 2 can be formed in a triangular shape, thereby ensuring stability of rigid application of force.
In this embodiment, the hinged seat of the cylinder B51 connected to the arm cylinder frame 2 can be extended along the two sides of the arm cylinder frame 2, so the bottom side of the triangle is longer and the stability is better.
Although the scheme is mainly used for heavy hoisting objects, the scheme can also be used for light hoisting objects. When hoisting a light-weight hoisting object, the tensile structure in the flexible cut-off part 10 is detached, as shown in fig. 7, so that the hoisting weight can be reduced, and the hydraulic flow energy consumption is saved.
Claims (9)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120774709.2U CN213294489U (en) | 2021-04-16 | 2021-04-16 | Anti-sway hoisting machinery for road construction |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202120774709.2U CN213294489U (en) | 2021-04-16 | 2021-04-16 | Anti-sway hoisting machinery for road construction |
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| CN213294489U true CN213294489U (en) | 2021-05-28 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113830689A (en) * | 2021-11-25 | 2021-12-24 | 徐工集团工程机械股份有限公司建设机械分公司 | Arm support assembly and engineering vehicle |
| CN115676622A (en) * | 2022-09-08 | 2023-02-03 | 中国水利水电夹江水工机械有限公司 | Accurate positioning auxiliary adjusting method for rotary crane gate |
| CN120717349A (en) * | 2025-08-21 | 2025-09-30 | 四川路桥华东建设有限责任公司 | A hoisting platform and system |
-
2021
- 2021-04-16 CN CN202120774709.2U patent/CN213294489U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113830689A (en) * | 2021-11-25 | 2021-12-24 | 徐工集团工程机械股份有限公司建设机械分公司 | Arm support assembly and engineering vehicle |
| CN115676622A (en) * | 2022-09-08 | 2023-02-03 | 中国水利水电夹江水工机械有限公司 | Accurate positioning auxiliary adjusting method for rotary crane gate |
| CN120717349A (en) * | 2025-08-21 | 2025-09-30 | 四川路桥华东建设有限责任公司 | A hoisting platform and system |
| CN120717349B (en) * | 2025-08-21 | 2025-11-14 | 四川路桥华东建设有限责任公司 | A hoisting platform and system |
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