CN102992237B - Working platform and aerial cage thereof - Google Patents

Working platform and aerial cage thereof Download PDF

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Publication number
CN102992237B
CN102992237B CN201210524816.5A CN201210524816A CN102992237B CN 102992237 B CN102992237 B CN 102992237B CN 201210524816 A CN201210524816 A CN 201210524816A CN 102992237 B CN102992237 B CN 102992237B
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China
Prior art keywords
permanent seat
elastic damping
link span
working bucket
shifting block
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CN201210524816.5A
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CN102992237A (en
Inventor
周磊
陈贤圣
艾国栋
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Changsha Zoomlion Fire Fighting Machinery Co Ltd
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Changsha Zoomlion Fire Fighting Machinery Co Ltd
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Priority to CN201210524816.5A priority Critical patent/CN102992237B/en
Publication of CN102992237A publication Critical patent/CN102992237A/en
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Abstract

The invention discloses a working platform and an aerial cage thereof. The working platform comprises a working hopper, a connecting frame which is fixed to an arm frame and a shock absorber which is arranged between the working hopper and the connecting frame, wherein the shock absorber is used for absorbing the shock of the working hopper which moves relative to the connecting frame along at least one direction. Through the mode, by utilizing the working platform, the vibration amplitude and vibration speed between the working hopper and the arm frame can be effectively reduced, and the safety and comfortability of operators when working at the working hopper are improved.

Description

Workplatform and aerial platform thereof
Technical field
The present invention relates to engineering technology apparatus field, particularly relate to a kind of workplatform and aerial platform thereof.
Background technology
Aerial platform is that staff, machinery and equipment are lifted to high-altitude assigned address by one, is engaged in the specialized equipment of the operations such as installation, maintenance, rescue.Working bucket is arranged on aerial platform, and playing a part carrying staff or service kit, is the important device realizing aerial platform radical function.
As shown in Figure 1, the aerial platform of prior art comprises working bucket 100, link span 200 and jib 300.Jib 300 is connected by articulated manner with link span 200, and jib 300 and link span 200 can relatively rotate; Further, working bucket 100 and link span 200 are generally bolted or welding manner links together, and get final product firm linking together between such working bucket 100 and link span 200, both can not relative motion.Because working bucket 100 is be fixedly connected with link span 200, easily cause following problem:
(1) working bucket 100 is vibrated along with the vibration of jib 300 together with link span 200, because working bucket 100 is arranged at the end of jib 300, when jib 300 all launches, the amplitude of working bucket 100 likely can be very large, has a strong impact on life security and the traveling comfort of operating personal in working bucket 100;
(2) working bucket 100 may because of the change of himself load or operating personal turnover working bucket 100 time, the vibration of working bucket 100 self can cause jib 300 to shake together, and more difficultly stops.
In sum, in prior art, in jib 300 action launching or stopping and when changing kinematic velocity or direction, because jib 300 has certain amount of deflection, working bucket 100 vibration by a relatively large margin can be caused.This vibration can cause operating personal in working bucket 100 to do not feel like oneself or panic, also may to cause in working bucket 100 operating personal or article centre-of gravity shift and fall in working bucket 100, even making jib 300 produce resonance and affect the stability of car load.
Summary of the invention
The technical matters that the present invention mainly solves is to provide a kind of workplatform and aerial platform thereof, effectively can reduce the Oscillation Amplitude between working bucket and jib and vibration velocity, improves safety when working in working bucket and traveling comfort.
For solving the problems of the technologies described above, the technical scheme that the present invention adopts is: provide a kind of workplatform, comprising: working bucket and the link span be fixed on jib; And the damper element be arranged between working bucket and link span, to carry out damping to working bucket when link span moves relatively at least one direction, wherein, damper element comprises the first permanent seat, the second permanent seat, the first elastic damping element, the second elastic damping element and shifting block, and the first permanent seat and the second permanent seat lay respectively at shifting block both sides; Link span is fixed in shifting block one end, and the first permanent seat, the second permanent seat are individually fixed in working bucket; First elastic damping element one end abuts the first permanent seat, the other end abuts shifting block, second elastic damping element one end abuts the second permanent seat, the other end abuts shifting block, wherein, described damper element comprises the first permanent seat, the second permanent seat, the first elastic damping element, the second elastic damping element and shifting block, and described first permanent seat and the second permanent seat lay respectively at shifting block both sides; Described link span is fixed in described shifting block one end, and described first permanent seat, described second permanent seat are individually fixed in described working bucket; Described first elastic damping element one end abuts described first permanent seat, the other end abuts described shifting block, and described second elastic damping element one end abuts described second permanent seat, the other end abuts described shifting block; Or working bucket is fixed in described shifting block one end, described first permanent seat, described second permanent seat are individually fixed in described link span; Described first elastic damping element one end abuts described first permanent seat, the other end abuts described shifting block, described second elastic damping element one end abuts described second permanent seat, the other end abuts described shifting block, and described first elastic damping element is identical with the setting direction of described second elastic damping element.
Wherein, damper element also comprises bearing pin, shifting block, the first permanent seat, the second permanent seat, the first elastic damping element and the second elastic damping element are provided with through hole, bearing pin is successively through the first permanent seat, the first elastic damping element, shifting block, the second elastic damping element and the second permanent seat through hole separately, and its two ends are individually fixed in the first permanent seat, the second permanent seat.
Wherein, the first elastic damping element is identical with the elastic deformation direction of the second elastic damping element.
Wherein, link span is slidably connected in working bucket.
Wherein, workplatform comprises at least two sliding parts, and at least two sliding parts are arranged at outside the two ends of the first permanent seat, the second permanent seat respectively; Wherein, sliding part comprises chute, roller and main shaft; Link span comprises through hole; Chute is arranged in working bucket, and wherein, the parallel track formed by chute is in the elastic deformation direction of the first elastic damping element, and pair of rollers should be arranged in the track formed by chute, and main shaft wears link span, roller successively, and roller is fixed on link span.
Wherein, the cross-sectional plane of chute is ledge structure, and the cross-sectional plane of roller is intermediate expansion structure, and the ledge structure of the expansion texture of roller and chute agrees with mutually.
Wherein, sliding part also comprises the first block and the second block; First block, the second block are arranged at intervals at chute two ends respectively, and are all fixed on link span.
Wherein, link span number is two, is symmetricly set in the both sides that working bucket is relative respectively.
For solving the problems of the technologies described above, another technical solution used in the present invention is: provide a kind of aerial platform, comprise jib, and aerial platform also comprises the workplatform as described in above-mentioned any one embodiment; Wherein, jib is connected with working bucket by link span.
The invention has the beneficial effects as follows: the situation being different from prior art, the present invention by arranging damper element between working bucket and link span, when the relative link span motion of working bucket produces displacement in other words, by the portion of energy that damper element absorption motion or displacement bring, thus reduce vibration, effectively can reduce the Oscillation Amplitude between working bucket and jib and vibration velocity, improve safety when working in working bucket and traveling comfort.
Accompanying drawing explanation
Fig. 1 is the side schematic view of the aerial platform of prior art;
Fig. 2 is the schematic top plan view of workplatform embodiment of the present invention;
Fig. 3 is the enlarged diagram of link span shown in Fig. 2;
Fig. 4 is the schematic cross-section of link span shown in Fig. 3;
Fig. 5 is the cross section enlarged diagram of the sliding part in link span shown in Fig. 3 along A-A direction;
Fig. 6 be another embodiment of link span in workplatform embodiment of the present invention overlook enlarged diagram;
Fig. 7 is the side schematic view of aerial platform embodiment of the present invention.
Detailed description of the invention
Below in conjunction with drawings and embodiments, the present invention is described in detail.
Consult Fig. 2 to Fig. 4, Fig. 2 is the side schematic view of workplatform 1 first embodiment of the present invention, and Fig. 3 is the enlarged diagram of link span shown in Fig. 2, and Fig. 4 is the schematic cross-section of link span shown in Fig. 2.
In the first embodiment, workplatform 1 comprises working bucket 11, link span 12 and damper element 13.Wherein, one end of link span 12 is fixed in jib (not shown), and the other end of link span 12 is used for being connected with working bucket 11.Damper element 13 is arranged between working bucket 11 and link span 12, and damper element 13 is in order to carry out damping to working bucket 11 when link span 12 moves relatively at least one direction.Below, be illustrated in order to carry out damping to working bucket 11 when link span 12 moves relatively in the horizontal direction with damper element 13 herein.
As shown in Figure 3, damper element 13 comprises the first permanent seat 131, second permanent seat 132, bearing pin 133, first elastic damping element 134, second elastic damping element 135 and shifting block 136.Wherein, the first permanent seat 131 and the second permanent seat 132 are individually fixed in working bucket 11, and link span 12 is fixed in shifting block 136 one end.Further, first elastic damping element 134 one end abuts the first permanent seat 131, other end abutting shifting block 136, second elastic damping element 135 one end abuts the second permanent seat 132, the other end also abuts shifting block 136.Wherein, the first elastic damping element 134 is identical with the setting direction of the second elastic damping element 135, and the elastic deformation direction of the first elastic damping element 134 and the second elastic damping element 135 is all set to horizontal direction.
At the first permanent seat 131, second permanent seat 132, first elastic damping element 134, second elastic damping element 135 and shifting block 136 relevant position, all through hole is set, bearing pin 133 is successively through the through hole that the first permanent seat 131, first elastic damping element 134, shifting block 136, second elastic damping element 135 and the second permanent seat 132 are respective, and the two ends of bearing pin 133 are finally individually fixed in the first permanent seat 131 and the second permanent seat 132.Wherein, when such as the first elastic damping element 134, second elastic damping element 135 all adopts cylindroid helical-coil compression spring, the through hole of the first elastic damping element 134 or the second elastic damping element 135 can be understood as this spring along the radial direction through hole on its elastic deformation direction.Run through the first elastic damping element 134 and the second elastic damping element 135 by bearing pin 133, the application force that the first elastic damping element 134 and the second elastic damping element 135 produce can be remained in the same direction.Certainly, bearing pin 133 can also be set to two sectional type, wherein one section successively through the first permanent seat 131, first elastic damping element 134 and the respective through hole of shifting block 136, and another section is successively through the second permanent seat 132, second elastic damping element 135 and the respective through hole of shifting block 136.Also the application force that the first elastic damping element 134 and the second elastic damping element 135 produce can be remained in the same direction.
In above-mentioned embodiment, the first elastic damping element 134, second elastic damping element 135 all adopts cylindroid helical-coil compression spring, and the first elastic damping element 134, second elastic damping element 135 generally selects identical model.And for the selection of the first elastic damping element 134 and the second elastic damping element 135, for cylindroid helical-coil compression spring, specifically can design stiffness coefficient and the initial pressure of this cylindroid helical-coil compression spring according to the difference of working bucket 11 load, reach best to make damping effect.In addition, also Compress Spring is not limited to the selection of the first elastic damping element 134 and the second elastic damping element 135 herein, the elastomeric material or resin material with elasticity modulus can also be adopted, do not make too many restrictions herein.
In above-mentioned embodiment, when designing the position of shifting block 136, shifting block 136 is arranged at the balance position place of the first elastic damping element 134 and the second elastic damping element 135 usually, and this balance position can be understood as the pulling force at the first elastic damping element 134 and the second elastic damping element 135 pairs of shifting block 136 two ends or the equal position of pressure.Wherein, this balance position comprises the position that the pulling force at the first elastic damping element 134 and the second elastic damping element 135 pairs of shifting block 136 two ends or pressure are zero, and now, namely shifting block 136 two ends all do not stress.
As shown in Figure 3, link span 12 at least comprises two sliding parts 14, and these two sliding parts 14 are arranged at outside the two ends of the first permanent seat 131 and the second permanent seat 132 respectively, and namely a sliding part 14 is arranged at the side of the first permanent seat 131 away from the second permanent seat 132; Another sliding part 14 is arranged at the side of the second permanent seat 132 away from the first permanent seat 131.Link span 12 is also at least provided with the through hole of corresponding sliding part 14 quantity.Further, sliding part 14 comprises chute 141, roller 142 and main shaft 143.Chute 141 to be arranged in working bucket 11 and to interfix with working bucket 11, and the parallel track formed by chute 141 is in the elastic deformation direction of the first elastic damping element 134, roller 142 correspondence is arranged among the track that formed by chute 141, wherein, this track has certain length and is beneficial to roller 142 and rolls within the specific limits, further, main shaft 143 wears corresponding through hole, roller 142 on link span 12 successively, and wheel rolls 142 and is fixed on link span 12 the most at last.Wherein, main shaft 143 is equivalent to the axle drive shaft of roller 142, rolls in the track that chute 141 is formed for driving roller 142.
Continue to consult Fig. 3, link span 12 also comprises the first block 144 and the second block 145.This first block 144, second block 145 is arranged at chute 141 two ends respectively and all keeps at a certain distance away with chute 141, this distance is all less than the diameter of roller 142, when working bucket 11 and link span 12 have relative motion in the horizontal direction, generally, roller 142 under main shaft 143 drives only in more among a small circle rolling and can not frequent impact to the first block 144 or the second block 145, the first block 144 when scope is larger and if roller 142 rolls, second block 145 effectively can limit the motion of roller 142, and make it can not depart from the track of chute 141 formation.
And referring to Fig. 5, Fig. 5 is the cross section enlarged diagram of the sliding part in link span shown in Fig. 3 along A-A direction.The cross-sectional plane of chute 141 is ledge structure, and roller 142 cross-sectional plane is intermediate expansion structure, and the expansion texture of roller 142 and the ledge structure of chute 141 agree with mutually.The ledge structure of chute 141 and the expansion texture of roller 142 cooperatively interact, rightly roller 142 is limited within track that chute 141 formed, again because roller 142 reality is connected with link span 12, therefore one can be fixed on by relative with link span 12 for working bucket 11 by the respective outer side edges between roller 142 with chute 141.And incorporated by reference to Fig. 4, roller 142 is while playing middle connection function, and then realize link span 12 to be slidably connected in working bucket 11, and at least part of structure of roller 142 is located between chute 141, therefore can also bear the weight of working bucket 11, the mechanical strength of link span 12 can be strengthened.
Composition graphs 3 and Fig. 4, produce relative motion in the horizontal direction for working bucket 11 and link span 12 and carry out schematic illustration:
Operating personal enters working bucket 11 when carrying out operation, working bucket is stimulated to vibrate, because adopt sliding block joint between working bucket 11 and link span 12, the application force component be in the horizontal direction applied in working bucket 11 makes to produce relative motion between working bucket 11 and link span 12, now, because also adopt damper element 13 as described in the embodiment between working bucket 11 and link span 12, working bucket 11 is when being subject in horizontal direction application force left, working bucket 11 will relatively link span 12 in the horizontal direction to left movement, now, shifting block 136 is by compression second elastic damping element 135, the energy that the acting of this application force produces progressively can be absorbed by the second elastic damping element 135, so working bucket 11 relatively link span 12 in the horizontal direction to the speed of left movement can relatively slowly and its amplitude will reduce, when the application force that working bucket 11 is subject to disappears, second elastic damping element 135 progressively can discharge its energy absorbed, working bucket 11 is made to return to balance position with speed more slowly, thus play damping effect, and working bucket 11 to be subject in horizontal direction application force to the right, namely when the relative link span 12 of working bucket 11 meeting moves right in the horizontal direction, shifting block 136 is by compression first elastic damping element 134, the energy that the acting of this application force produces progressively can be absorbed by the first elastic damping element 134, so working bucket 11 relatively the speed that moves right in the horizontal direction of link span 12 can relatively slowly and its amplitude reduce, when the application force that working bucket 11 is subject to disappears, first elastic damping element 134 progressively can discharge its energy absorbed, working bucket 11 is made to return to balance position with speed more slowly, thus play damping effect.
Therefore, no matter the relative link span 12 of working bucket 11 does any relative motion in the horizontal direction, this damper element 13 all can play larger damping effect, namely can cut down peak swing and maximum velocity, and then high degree Shangdi ensures the life security of operating personal, improves the traveling comfort of working environment.
It should be noted that and also can multiple damper element 13 identical with said structure be set along the elastic deformation direction being parallel to the first elastic damping element 134, to improve damping effect further, repeat no longer one by one herein.
In above-mentioned embodiment, link span 12 number is set to two usually, is symmetricly set in the both sides that working bucket 11 is relative respectively, and certainly, these two link spans 12 can be installed on top or the bottom of working bucket 11.In addition, the installation direction of damper element 13 can be set to be parallel to horizontal direction or be parallel to vertical direction, when being set to be parallel to horizontal direction, cushioning effect is had to the application force component in the horizontal direction that concussion source produces, and when being set to be parallel to vertical direction, have cushioning effect to the application force that concussion source produces at the component of vertical direction.Further, two link span 12 one end protruded from outside working bucket 11 are provided with hinged seat (not shown), and hinged seat is used for being connected and fixed by articulated manner with jib 2.
As shown in Figure 6, Fig. 6 be another embodiment of link span in workplatform embodiment of the present invention overlook enlarged diagram.In a detailed description of the invention, also can shifting block 1360 one end be fixed in working bucket 110, first permanent seat 1310 and the second permanent seat 1320 are fixed on link span 120, and the setting of the first elastic damping element 1340 and the second elastic damping element 1350 can refer to above, do not do too much description herein.
Embodiment of the present invention also provides a kind of aerial platform.
As shown in Figure 7, the side schematic view of aerial platform embodiment of the present invention.The aerial platform of embodiment of the present invention comprises jib 1003 and the workplatform 1000 as described in above-mentioned arbitrary embodiment, workplatform 1000 comprises working bucket 1001 and link span 1002, wherein, jib 1003 is connected and fixed by link span 1002 and working bucket 1001.
Embodiment of the present invention, damper element (composition graphs 3) is set up in working bucket 1001 and link span 1002, when the relative link span 1002 of working bucket 1001 moves generation displacement in other words, by the portion of energy that damper element absorption motion or displacement bring, thus reduce vibration, effectively can reduce the Oscillation Amplitude between working bucket 1001 and jib 1003 and vibration velocity, improve safety when operating personal works in working bucket 1001 and traveling comfort.
In sum, workplatform of the present invention and aerial platform tool thereof have the following advantages:
(1) by the environmental stimuli of onesize energy, working bucket amplitude is less;
(2) by the environmental stimuli of onesize energy, when vibration balancing position, the vibration velocity of working bucket is slower;
(3) maximum velocity of the amplitude and balance position of having cut down working bucket can make working bucket more steady, can improve safety and the traveling comfort of working bucket;
(4) maximum velocity of the amplitude and balance position of having cut down working bucket can reduce the degree of fatigue of working bucket and jib, and slows down the fatigue damage of link span.
The foregoing is only embodiments of the present invention; not thereby the scope of the claims of the present invention is limited; every utilize specification sheets of the present invention and accompanying drawing content to do equivalent structure or equivalent flow process conversion; or be directly or indirectly used in other relevant technical fields, be all in like manner included in scope of patent protection of the present invention.

Claims (9)

1. a workplatform, is characterized in that, comprising:
Working bucket and the link span be fixed on jib;
And the damper element be arranged between described working bucket and described link span, to carry out damping to described working bucket when relatively described link span moves at least one direction, wherein,
Described damper element comprises the first permanent seat, the second permanent seat, the first elastic damping element, the second elastic damping element and shifting block,
Described first permanent seat and the second permanent seat lay respectively at shifting block both sides; Described link span is fixed in described shifting block one end, and described first permanent seat, described second permanent seat are individually fixed in described working bucket; Described first elastic damping element one end abuts described first permanent seat, the other end abuts described shifting block, and described second elastic damping element one end abuts described second permanent seat, the other end abuts described shifting block;
Or,
Working bucket is fixed in described shifting block one end, and described first permanent seat, described second permanent seat are individually fixed in described link span; Described first elastic damping element one end abuts described first permanent seat, the other end abuts described shifting block, described second elastic damping element one end abuts described second permanent seat, the other end abuts described shifting block, and described first elastic damping element is identical with the setting direction of described second elastic damping element.
2. workplatform according to claim 1, is characterized in that,
Described damper element also comprises bearing pin, described shifting block, described first permanent seat, described second permanent seat, described first elastic damping element and described second elastic damping element are provided with through hole, described bearing pin is successively through described first permanent seat, described first elastic damping element, described shifting block, described second elastic damping element and described second permanent seat through hole separately, and its two ends are individually fixed in described first permanent seat, described second permanent seat.
3. workplatform according to claim 1, is characterized in that,
Described first elastic damping element is identical with the elastic deformation direction of described second elastic damping element.
4. workplatform according to claim 1, is characterized in that,
Described link span is slidably connected in described working bucket.
5. workplatform according to claim 4, is characterized in that,
Described workplatform comprises at least two sliding parts, and at least two described sliding parts are arranged at outside the two ends of described first permanent seat, described second permanent seat respectively;
Wherein, described sliding part comprises chute, roller and main shaft;
Described link span comprises through hole;
Described chute is arranged in described working bucket, wherein, the parallel track formed by described chute is in the elastic deformation direction of described first elastic damping element, described pair of rollers should be arranged in the track formed by described chute, described main shaft wears described link span, described roller successively, and described roller is fixed on described link span.
6. workplatform according to claim 5, is characterized in that,
The cross-sectional plane of described chute is ledge structure, and the cross-sectional plane of described roller is intermediate expansion structure, and the ledge structure of the expansion texture of described roller and described chute agrees with mutually.
7. workplatform according to claim 6, is characterized in that,
Described sliding part also comprises the first block and the second block;
Described first block, described second block are arranged at intervals at described chute two ends respectively, and are all fixed on described link span.
8. workplatform according to claim 7, is characterized in that,
Described link span number is two, is symmetricly set in the both sides that described working bucket is relative respectively.
9. an aerial platform, comprises jib, it is characterized in that, described aerial platform also comprises the workplatform as described in any one of claim 1-8; Wherein, described jib is connected with working bucket by link span.
CN201210524816.5A 2012-12-07 2012-12-07 Working platform and aerial cage thereof Active CN102992237B (en)

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Application Number Priority Date Filing Date Title
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CN102992237B true CN102992237B (en) 2015-05-13

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Families Citing this family (4)

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CN106492382A (en) * 2016-10-26 2017-03-15 长沙中联消防机械有限公司 The mounting structure of water cannon and high lifting kind fire fighting truck
CN108178109B (en) * 2017-12-25 2019-10-25 河海大学常州校区 A kind of Special Automatic vibration damping absorbing workbench of high-altitude operation vehicle
CN108249371B (en) * 2018-01-08 2019-10-25 河海大学常州校区 A kind of aerial work platform three-dimensional automatic vibration reduction working bucket
CN109520606B (en) * 2018-12-07 2020-12-08 中联重科股份有限公司 Weighing device and weighing method

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CN102633214A (en) * 2011-02-15 2012-08-15 武汉孚曼机械有限公司 Caterpillar band lifting and damping mechanism for caterpillar type hydraulic aerial cage
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