WO2013000322A1 - Crane and movable-type balance weight mechanism thereof - Google Patents
Crane and movable-type balance weight mechanism thereof Download PDFInfo
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- WO2013000322A1 WO2013000322A1 PCT/CN2012/074213 CN2012074213W WO2013000322A1 WO 2013000322 A1 WO2013000322 A1 WO 2013000322A1 CN 2012074213 W CN2012074213 W CN 2012074213W WO 2013000322 A1 WO2013000322 A1 WO 2013000322A1
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- connecting frame
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- mobile
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- crane
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C23/00—Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes
- B66C23/62—Constructional features or details
- B66C23/72—Counterweights or supports for balancing lifting couples
- B66C23/74—Counterweights or supports for balancing lifting couples separate from jib
- B66C23/76—Counterweights or supports for balancing lifting couples separate from jib and movable to take account of variations of load or of variations of length of jib
Definitions
- the invention relates to a Chinese patent application filed on June 30, 2011 by the Chinese Patent Office, the application number is 201110181113.2, and the invention name is "a crane and its mobile counterweight mechanism". Priority is hereby incorporated by reference in its entirety.
- the present invention relates to the field of construction machinery, and more particularly to a mobile weight mechanism for a crane.
- the invention also relates to a crane having the above-described mobile weight mechanism.
- Truck cranes are widely used in lifting and lifting tools for industrial and mining enterprises, construction sites, port terminals, oil fields, railways, warehouses and freight yards. With the rapid development of the national economy, the role of truck cranes in various industries is also growing, and the economic leverage is increasing. With the increasing use of truck cranes, customers are increasingly demanding the lifting performance and stability of the vehicle.
- One way is to stop working first, to close the legs, to move the whole vehicle to a suitable position, and then to extend the legs, then Carry out the normal lifting work, which not only reduces the efficiency of the whole vehicle, but also increases the operator's fatigue; the other way is to increase the weight, but because the increase of the weight is limited by the condition table, and when it is increased to the maximum When the counterweight is used, it can only be solved by moving the whole vehicle.
- the existing fixed weight structure limits the improvement of the lifting performance. Since the moving performance of the truck crane is not as good as that of the truck crane, it is inconvenient to move the whole vehicle. Therefore, how to develop a vehicle that can change the vehicle.
- the technical solution of increasing the lifting performance and the stability of the center of gravity is a technical problem to be solved by those skilled in the art.
- the present invention provides a mobile weight mechanism for a crane, the crane including a weight, a turntable, and a winch fixedly coupled to the turntable
- the mobile weighting mechanism includes a first force transmitting member, a displacement oil cylinder, and a connecting frame fixedly connected to the weighting block, and the two ends of the first force transmitting member are respectively associated with the lifting box and the
- the connecting brackets are connected, and two ends of the displacement cylinder are respectively connected to the turntable/the winch box and the connecting bracket.
- the mobile weighting mechanism further includes a second force transmitting member, and two ends of the second force transmitting member are respectively connected to the lifting box and the connecting frame, and the second force transmitting member is The angle of the first force transmitting member is greater than 0° and less than 45. .
- the first force transmitting member is a pair of vertical rods symmetrically disposed, and two ends of the pair of vertical rods are respectively hinged with the hoisting box and the connecting frame;
- the piece is a pair of slanting rods disposed symmetrically, and two ends of the pair of slanting rods are respectively hinged with the hoisting box and the connecting frame.
- the tail end of the hoisting box is fixedly connected with a bracket
- the bracket is provided with a first support and a second support
- one end of the pair of vertical rods is hinged with the first support
- One end of the pair of diagonal rods is hinged to the second seat.
- the connecting frame is provided with a third support and a fourth support, the other end of the vertical rod is hinged with the third support, and the other end of the diagonal rod and the fourth branch Seat hinged.
- the mobile weight mechanism further includes a latch cylinder and a latch, one end of the latch cylinder is connected to the turntable or the winch, and the other end of the latch cylinder is connected to the plug,
- the bottom of the hoisting box is provided with a first lug having a pin hole
- the connecting bracket is provided with a second lug having a pin hole
- the pin cylinder is at the first lug and the second leg The pin holes of the ears are pushed into the pin holes when they are aligned with each other.
- the connecting frame is provided with a pair of bearing members symmetrically disposed, and the weighting block is provided with a pair of bearing grooves symmetrically disposed, and the bearing groove and the shape and position of the pair of bearing members are Correspondingly, the connecting frame is fixedly connected to the weight in the pair of weight grooves by the pair of weights.
- the cylinder of the displacement cylinder is hinged with the turntable or the hoisting box, and the piston rod of the displacement cylinder is hinged with the connecting bracket.
- the present invention provides a crane having the above-described mobile weight mechanism.
- the mobile weight mechanism provided by the invention and the crane having the mobile weight mechanism drive the weight (block) by the displacement cylinder to change the center of gravity of the vehicle, and the vehicle can be increased without stopping the operation.
- the lifting range under the same working condition in the large working condition table not only improves the working efficiency, but also reduces the labor intensity of the operator.
- FIG. 1 is a front view of a mobile weight mechanism for a crane (with a weight in an intermediate position) according to an embodiment of the present invention
- Figure 2 is a left side view of Figure 1;
- Figure 3 is a plan view of Figure 1;
- FIG. 4 is a schematic structural view of the weight of the mobile weighting mechanism shown in FIG. 1 at the foremost end;
- FIG. 5 is a structural schematic view of the weight of the mobile weighting mechanism shown in FIG.
- a mobile weight mechanism for a crane will be described in detail below with reference to FIGS. 1 through 5.
- the mobile weight mechanism includes a displacement cylinder 1, a pair of diagonal rods symmetrically disposed, a pair of vertically disposed rods 4, a connecting bracket 9, a pair of pin cylinders 10 and a pair of pins 11, its connection relationship is as follows:
- the cylinder of the displacement cylinder 1 is hinged with the turret 8 of the crane, the piston rod of the displacement cylinder 1 is hinged with the connecting frame 9, and the hoisting box 7 is fixedly connected with the turret 8; the bracket 3 is provided on both sides of the tail of the hoisting box 7
- the bracket 3 is provided with a support 31 and a support 32.
- the connecting bracket 9 is provided with a support 91 and a support 92.
- the upper end of the vertical rod 4 is hinged with the support 31, and the lower end of the vertical rod 4 is hinged to the support 91.
- the upper end of the slanting rod 2 is hinged to the support 32, the lower end of the slanting rod 2 is hinged to the support 92, and the angle ⁇ between the vertical rod 4 and the slanting rod 2 on the same side may be 0° to 45°. Any value between (for example, 25; ;); the connecting frame 9 is provided with a pair of bearing members 5, and the weight of the crane is provided with bearing grooves 6 corresponding to the shape and position of the pair of bearing members 5.
- the connecting frame 9 is inserted into the bearing groove 6 through the 7
- the box 7 is fixedly connected, and the piston 4 of the bolt cylinder 10 is fixedly connected with the bolt 11.
- the bottom of the hoisting box 7 and the connecting frame 9 are respectively provided with a first lug and a second lug with a pin hole (not shown)
- the latch cylinder 10 can push the pin 11 into the pin hole when the pin holes of the first ear and the second ear are aligned with each other to realize self-locking, and prevent the weight (block) from falling out of the cylinder, that is, the connecting frame 9 Fastened on the hoisting box 7 (or the turret 8), so that the counterweight (block) is tightly locked with the turret 8 and the vehicle body, improving the stability of the whole machine during the hoisting operation.
- Figure 1 shows the counterweight (block) in the middle position. Based on the intermediate position, the connecting frame 9 can be moved back 430 ⁇ , ie The maximum distance of the counterweight (block) is 430mm (as shown in Figure 5). The center of gravity of the vehicle is moved backwards, and the lifting capacity is increased accordingly. When the smaller weight needs to be lifted, the displacement cylinder 1 moves in the opposite direction.
- the piston rod is retracted, and the connecting frame 9 is pulled forward, and the diagonal rod 2 and the vertical rod 4 are respectively swung forward around the supports 31 and 3 2 , and can be moved forward by 430 ⁇ , that is, the weight (block) is moved forwardly.
- the distance is 430 ⁇ (as shown in Figure 4), and the center of gravity of the vehicle moves forward, so that the lifting capacity is adjusted accordingly, and no energy is wasted.
- the diagonal rod 2 and the vertical rod 4 are straight rods, which are called “vertical rods” because the weight (block) is in the middle position, vertical
- the rod is generally perpendicular to the ground link; it is referred to as a “slant bar” because the slant bar is deflected at an angle relative to the vertical bar when the counterweight (block) is in the intermediate position.
- a self-locking method is added, that is, the bolt cylinder is realized, and the bolt cylinder does not operate during transportation, when the lifting operation is performed (
- the bolt cylinder acts, and the connecting bracket is fastened to the turntable by the bolt, so that the weight is tightly coupled with the turntable and the car.
- Body locking In other embodiments of the invention, there may be no self-locking function, i.e., components such as a latch cylinder and a latch are not included.
- the diagonal rod 2 and the vertical rod 4 are both connecting rods.
- other types of force transmitting members may be used instead, for example, with a strong rope;
- only the vertical rod 4 one or more, or other types of force transmitting members
- the slanting rod 2 is not included, and the connecting bracket 9 is directly driven to swing around the mounting seat 31 by the displacement cylinder 1 action.
- one or more vertical bars or one or more diagonal bars may be provided according to actual needs.
- connection manner of the connecting frame and the weight is not limited to the manner described in the above embodiments, for example, after the basic balance overlaps and the plurality of active balance weights, the connecting frame and the basic balance weight are The sleeve is fixedly connected.
- a mobile weight mechanism for a crane can change the position of the weight by forming a thrust lever mechanism by a displacement cylinder, a pair of diagonal rods, a pair of vertical rods, and a connecting frame.
- the position of the center of gravity of the vehicle changes, the crane's lifting capacity in the same working condition is increased, and the lifting range is expanded, so that it is convenient to carry heavy loads without stopping the operation of the whole vehicle, which not only improves the working efficiency, but also improves the working efficiency. Reduce the labor intensity of the operator.
- the embodiment of the present invention further provides a crane having the above-mentioned mobile weight mechanism. Since the above-mentioned mobile weight mechanism has the above technical effects, the crane having the mobile weight mechanism should also have a corresponding The technical implementation, the specific implementation process is similar to the above embodiment, and will not be described again.
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Abstract
Disclosed in the present invention is a movable-type balance weight mechanism applied in a crane comprises a first power transmission piece, a deflection oil cylinder(1) and a connecting frame(9) which is fixedly connected with a balance weight block; two ends of the first power transmission piece are respectively connected with a winding box(7) and the connecting frame(9); two ends of the deflection oil cylinder(1) are respectively connected with a rotary table(8)/ the winding box(7) and the connecting frame(9). Also disclosed in the present invention is a crane with the movable-type balance weight mechanism. Accordingly, by means of the balance weight block moving under the driving of the deflection oil cylinder, the center of gravity of a finished vehicle is changed, and a hoisting range under the same working condition in a working condition table can be increased without stopping the operation and moving the finished vehicle, and not only is the operation efficiency improved, but also the labor intensity of operators is relieved.
Description
一种起重机及其移动式配重机构 本申请要求于 2011 年 06 月 30 日提交中国专利局、 申请号为 201110181113.2、发明名称为"一种起重机及其移动式配重机构 "的中国专利 申请的优先权， 其全部内容通过引用结合在本申请中。 The invention relates to a Chinese patent application filed on June 30, 2011 by the Chinese Patent Office, the application number is 201110181113.2, and the invention name is "a crane and its mobile counterweight mechanism". Priority is hereby incorporated by reference in its entirety.
技术领域 Technical field
本发明涉及工程机械技术领域， 特别是涉及一种用于起重机的移动式 配重机构。 本发明还涉及一种具有上述移动式配重机构的起重机。 The present invention relates to the field of construction machinery, and more particularly to a mobile weight mechanism for a crane. The invention also relates to a crane having the above-described mobile weight mechanism.
背景技术 Background technique
汽车起重机广泛应用于工矿企业、 建筑工地、 港口码头、 油田、 铁路、 仓库及货场等工况下的起重作业和吊装工具。 随着国民经济的快速发展， 汽车起重机在各行业的作用也越来越大， 经济杠杆作用与日倶增。 随着汽 车起重机的应用日益广泛， 客户对整车的起重性能及稳定性能的要求越来 越高。 Truck cranes are widely used in lifting and lifting tools for industrial and mining enterprises, construction sites, port terminals, oil fields, railways, warehouses and freight yards. With the rapid development of the national economy, the role of truck cranes in various industries is also growing, and the economic leverage is increasing. With the increasing use of truck cranes, customers are increasingly demanding the lifting performance and stability of the vehicle.
目前， 在同一工况下增大汽车起重机的吊载能力有以下两种方式： 一 种方式是先停止工作， 收起支腿， 使整车移动到合适位置， 然后再伸出支 腿， 接着进行正常吊装工作， 此种方式， 不仅整车作业效率低， 而且增加 了操作员的疲劳； 另一个方式就是增加配重， 但是由于配重的增加受到工 况表的限制， 而且当增加到最大配重时， 还是只能通过移动整车来解决。 At present, there are two ways to increase the lifting capacity of a truck crane under the same working condition: One way is to stop working first, to close the legs, to move the whole vehicle to a suitable position, and then to extend the legs, then Carry out the normal lifting work, which not only reduces the efficiency of the whole vehicle, but also increases the operator's fatigue; the other way is to increase the weight, but because the increase of the weight is limited by the condition table, and when it is increased to the maximum When the counterweight is used, it can only be solved by moving the whole vehicle.
现有的固定式配重结构限制了起重性能的提高， 由于汽车起重机的移 动性能又不如随车起重机好， 通过移动整车的方式艮不方便， 因此， 如何 研发出一种可改变整车重心以增大起重性能和稳定性能的技术方案， 是本 领域技术人员亟待解决的技术难题。 The existing fixed weight structure limits the improvement of the lifting performance. Since the moving performance of the truck crane is not as good as that of the truck crane, it is inconvenient to move the whole vehicle. Therefore, how to develop a vehicle that can change the vehicle The technical solution of increasing the lifting performance and the stability of the center of gravity is a technical problem to be solved by those skilled in the art.
发明内容 Summary of the invention
为了克服现有技术的上述缺陷和不足， 一方面， 本发明提供了一种用 于起重机的移动式配重机构， 所述起重机包括配重块、 转台以及固定连接 于所述转台的卷扬箱， 所述移动式配重机构包括第一传力件、 变位油缸以 及与所述配重块固定连接的连接架， 所述第一传力件的两端分别与所述卷 扬箱和所述连接架相连，所述变位油缸的两端分别与所述转台 /所述卷扬箱 和所述连接架相连。
优选地， 所述移动式配重机构还包括第二传力件， 所述第二传力件的 两端分别与所述卷扬箱和所述连接架相连， 所述第二传力件与所述第一传 力件的夹角大于 0° 小于 45。 。 In order to overcome the above-mentioned drawbacks and deficiencies of the prior art, in one aspect, the present invention provides a mobile weight mechanism for a crane, the crane including a weight, a turntable, and a winch fixedly coupled to the turntable The mobile weighting mechanism includes a first force transmitting member, a displacement oil cylinder, and a connecting frame fixedly connected to the weighting block, and the two ends of the first force transmitting member are respectively associated with the lifting box and the The connecting brackets are connected, and two ends of the displacement cylinder are respectively connected to the turntable/the winch box and the connecting bracket. Preferably, the mobile weighting mechanism further includes a second force transmitting member, and two ends of the second force transmitting member are respectively connected to the lifting box and the connecting frame, and the second force transmitting member is The angle of the first force transmitting member is greater than 0° and less than 45. .
优选地， 所述第一传力件为对称设置的一对竖直杆， 所述一对竖直杆 的两端分别与所述卷扬箱和所述连接架铰接； 所述第二传力件为对称设置 的一对斜杆， 所述一对斜杆的两端分别与所述卷扬箱和所述连接架铰接。 Preferably, the first force transmitting member is a pair of vertical rods symmetrically disposed, and two ends of the pair of vertical rods are respectively hinged with the hoisting box and the connecting frame; The piece is a pair of slanting rods disposed symmetrically, and two ends of the pair of slanting rods are respectively hinged with the hoisting box and the connecting frame.
优选地， 所述卷扬箱的尾端固定连接有支架， 所述支架上设有第一支 座和第二支座， 所述一对竖直杆的一端与所述第一支座铰接， 所述一对斜 杆的一端与所述第二支座铰接。 Preferably, the tail end of the hoisting box is fixedly connected with a bracket, the bracket is provided with a first support and a second support, and one end of the pair of vertical rods is hinged with the first support, One end of the pair of diagonal rods is hinged to the second seat.
优选地， 所述连接架上设有第三支座和第四支座， 所述竖直杆的另一 端与所述第三支座铰接， 所述斜杆的另一端与所述第四支座铰接。 Preferably, the connecting frame is provided with a third support and a fourth support, the other end of the vertical rod is hinged with the third support, and the other end of the diagonal rod and the fourth branch Seat hinged.
优选地， 所述移动式配重机构还包括插销油缸和插销， 所述插销油缸 的一端与所述转台或者所述卷扬箱相连， 所述插销油缸的另一端与所述插 销相连， 所述卷扬箱的底部设有带有销孔的第一支耳， 所述连接架设有带 有销孔的第二支耳， 所述插销油缸可在所述第一支耳及所述第二支耳的销 孔相互对齐时推动所述插销***所述销孔。 Preferably, the mobile weight mechanism further includes a latch cylinder and a latch, one end of the latch cylinder is connected to the turntable or the winch, and the other end of the latch cylinder is connected to the plug, The bottom of the hoisting box is provided with a first lug having a pin hole, and the connecting bracket is provided with a second lug having a pin hole, and the pin cylinder is at the first lug and the second leg The pin holes of the ears are pushed into the pin holes when they are aligned with each other.
优选地， 所述连接架上设有对称设置的一对承重件， 所述配重块上设 有对称设置的一对承重槽， 所述承重槽与所述一对承重件的形状、 位置相 对应， 所述连接架通过所述一对^重件嵌入所述一对^重槽内与所述配重 块固定连接。 Preferably, the connecting frame is provided with a pair of bearing members symmetrically disposed, and the weighting block is provided with a pair of bearing grooves symmetrically disposed, and the bearing groove and the shape and position of the pair of bearing members are Correspondingly, the connecting frame is fixedly connected to the weight in the pair of weight grooves by the pair of weights.
优选地， 所述变位油缸的缸筒与所述转台或者所述卷扬箱铰接， 所述 变位油缸的活塞杆与所述连接架铰接。 Preferably, the cylinder of the displacement cylinder is hinged with the turntable or the hoisting box, and the piston rod of the displacement cylinder is hinged with the connecting bracket.
另一方面， 本发明提供了具有上述移动式配重机构的起重机。 In another aspect, the present invention provides a crane having the above-described mobile weight mechanism.
本发明提供的一种移动式配重机构以及具有该移动式配重机构的起重 机， 通过变位油缸带动配重（块）移动， 使整车重心发生变化， 无需停止 作业移动整车即可增大工况表中同一工况下的起吊范围， 既提高了作业效 率， 也减轻了操作员的劳动强度。 The mobile weight mechanism provided by the invention and the crane having the mobile weight mechanism drive the weight (block) by the displacement cylinder to change the center of gravity of the vehicle, and the vehicle can be increased without stopping the operation. The lifting range under the same working condition in the large working condition table not only improves the working efficiency, but also reduces the labor intensity of the operator.
附图说明 DRAWINGS
图 1为本发明实施例所提供的一种用于起重机的移动式配重机构 （配 重处于中间位置） 的主视图；
图 2为图 1的左视图； 1 is a front view of a mobile weight mechanism for a crane (with a weight in an intermediate position) according to an embodiment of the present invention; Figure 2 is a left side view of Figure 1;
图 3为图 1的俯视图； Figure 3 is a plan view of Figure 1;
图 4为图 1所示移动式配重机构的配重处于最前端时的结构示意图； 图 5为图 1所示移动式配重机构的配重处于最后端时结构示意图。 4 is a schematic structural view of the weight of the mobile weighting mechanism shown in FIG. 1 at the foremost end; FIG. 5 is a structural schematic view of the weight of the mobile weighting mechanism shown in FIG.
具体实施方式 detailed description
为了使本领域技术人员更好地理解本发明的技术方案， 下面结合附图 和具体实施例对本发明作进一步的详细说明。 应当指出， 本部分中的对具 体结构的描述及描述顺序仅是对具体实施例的说明， 不应视为对本发明的 保护范围有任何限制作用。 The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments. It should be noted that the description and description of the specific structures in this section are merely illustrative of specific embodiments and should not be construed as limiting the scope of the invention.
下面同时结合图 1至图 5对本发明实施例所述提供的一种用于起重机 的移动式配重机构进行详细说明。 A mobile weight mechanism for a crane according to an embodiment of the present invention will be described in detail below with reference to FIGS. 1 through 5.
如图所示， 所述移动式配重机构包括变位油缸 1、 对称设置的一对斜 杆 2、 对称设置的一对竖直杆 4、 连接架 9、 一对插销油缸 10和一对插销 11 , 其连接关系如下： As shown, the mobile weight mechanism includes a displacement cylinder 1, a pair of diagonal rods symmetrically disposed, a pair of vertically disposed rods 4, a connecting bracket 9, a pair of pin cylinders 10 and a pair of pins 11, its connection relationship is as follows:
变位油缸 1的缸筒与起重机的转台 8铰接， 变位油缸 1的活塞杆与连 接架 9铰接， 卷扬箱 7与转台 8固定连接； 卷扬箱 7的尾部两侧设有支架 3 , 支架 3上设有支座 31和支座 32 , 连接架 9上设有支座 91和支座 92 , 竖直杆 4的上端与支座 31铰接， 竖直杆 4的下端与支座 91铰接， 斜杆 2 的上端与支座 32铰接， 斜杆 2的下端与支座 92铰接， 位于同一侧的竖直 杆 4与斜杆 2之间的夹角 α可以取 0 ° 到 45。 之间的任一值（例如取 25。 ；)； 连接架 9上设有一对承重件 5 , 起重机的配重块上设有与该一对承重件 5 的形状及位置相对应的承重槽 6 , 连接架 9通过 7|重件 5嵌入承重槽 6中 以实现与配重块的固定连接；一对插销油缸 1 0对称设置在卷扬箱 7的底部， 插销油缸 10的缸筒与卷扬箱 7固定连接，插销油缸 1 0的活塞 4干与插销 11 固定连接， 卷扬箱 7的底部和连接架 9上分别设有带销孔的第一支耳和第 二支耳（图未示出）， 插销油缸 10可在第一只耳和第二支耳的销孔相互对 齐时， 推动插销 11***销孔， 以实现自锁， 防止配重（块）掉缸， 即把连 接架 9紧固在卷扬箱 7 (或者转台 8 )上， 从而使配重（块）紧紧与转台 8、 车体锁定， 提高整机在吊载作业时的稳定性。
在工作过程中， 当需要吊载较大 p屯位的负载时， 变位油缸 1动作， 其 活塞杆伸出， 直接推动连接架 9后移， 斜杆 2和竖直杆 4分别绕支座 31 和 32先后摆动， 以变位油缸 1的行程为 860匪作举例说明， 图 1所示为配 重（块）处于中间位置， 以中间位置为基准， 连接架 9可后移 430匪， 即 配重（块）后移最大距离为 430mm (如图 5所示）， 整车重心跟着后移， 吊 载能力相应提高； 当需要吊载较小重物时， 变位油缸 1反方向动作， 其活 塞杆收回， 同时拉动连接架 9向前移动， 斜杆 2、 竖直杆 4分别绕支座 31 和 32向前摆动， 可前移 430匪， 即配重（块）前移的最大距离为 430匪（如 图 4所示）， 整车重心跟着前移， 使得吊载能力相应调整， 不会造成能量的 浪费。 The cylinder of the displacement cylinder 1 is hinged with the turret 8 of the crane, the piston rod of the displacement cylinder 1 is hinged with the connecting frame 9, and the hoisting box 7 is fixedly connected with the turret 8; the bracket 3 is provided on both sides of the tail of the hoisting box 7 The bracket 3 is provided with a support 31 and a support 32. The connecting bracket 9 is provided with a support 91 and a support 92. The upper end of the vertical rod 4 is hinged with the support 31, and the lower end of the vertical rod 4 is hinged to the support 91. The upper end of the slanting rod 2 is hinged to the support 32, the lower end of the slanting rod 2 is hinged to the support 92, and the angle α between the vertical rod 4 and the slanting rod 2 on the same side may be 0° to 45°. Any value between (for example, 25; ;); the connecting frame 9 is provided with a pair of bearing members 5, and the weight of the crane is provided with bearing grooves 6 corresponding to the shape and position of the pair of bearing members 5. , the connecting frame 9 is inserted into the bearing groove 6 through the 7 | heavy piece 5 to achieve a fixed connection with the weight; a pair of pin cylinders 10 are symmetrically disposed at the bottom of the winch 7 , and the cylinder and the hoist of the pin cylinder 10 The box 7 is fixedly connected, and the piston 4 of the bolt cylinder 10 is fixedly connected with the bolt 11. The bottom of the hoisting box 7 and the connecting frame 9 are respectively provided with a first lug and a second lug with a pin hole (not shown) The latch cylinder 10 can push the pin 11 into the pin hole when the pin holes of the first ear and the second ear are aligned with each other to realize self-locking, and prevent the weight (block) from falling out of the cylinder, that is, the connecting frame 9 Fastened on the hoisting box 7 (or the turret 8), so that the counterweight (block) is tightly locked with the turret 8 and the vehicle body, improving the stability of the whole machine during the hoisting operation. In the working process, when the load of the large p-position needs to be lifted, the displacement cylinder 1 acts, the piston rod extends, directly pushes the connecting frame 9 to move backward, and the diagonal rod 2 and the vertical rod 4 respectively revolve around the support 31 and 32 are oscillated one after another, taking the stroke of the displacement cylinder 1 as 860 匪 as an example. Figure 1 shows the counterweight (block) in the middle position. Based on the intermediate position, the connecting frame 9 can be moved back 430 匪, ie The maximum distance of the counterweight (block) is 430mm (as shown in Figure 5). The center of gravity of the vehicle is moved backwards, and the lifting capacity is increased accordingly. When the smaller weight needs to be lifted, the displacement cylinder 1 moves in the opposite direction. The piston rod is retracted, and the connecting frame 9 is pulled forward, and the diagonal rod 2 and the vertical rod 4 are respectively swung forward around the supports 31 and 3 2 , and can be moved forward by 430 匪, that is, the weight (block) is moved forwardly. The distance is 430 匪 (as shown in Figure 4), and the center of gravity of the vehicle moves forward, so that the lifting capacity is adjusted accordingly, and no energy is wasted.
需要说明的是， 上述实施例中， 斜杆 2和竖直杆 4均为直形连杆， 之 所以称作 "竖直杆"， 是因为在配重（块）处于中间位置时， 竖直杆大体与 地连接架垂直； 之所以称作 "斜杆"，是因为在配重（块）处于中间位置时， 斜杆相对竖直杆偏斜一定角度。 It should be noted that, in the above embodiment, the diagonal rod 2 and the vertical rod 4 are straight rods, which are called "vertical rods" because the weight (block) is in the middle position, vertical The rod is generally perpendicular to the ground link; it is referred to as a "slant bar" because the slant bar is deflected at an angle relative to the vertical bar when the counterweight (block) is in the intermediate position.
需要说明的是， 上述实施例中， 为了防止配重 （块）掉缸， 增加了一 种自锁方式， 即通过插销油缸实现， 在运输时， 插销油缸没有动作， 当进 行吊物作业时（例如当处于图 4所示工作状态时）， 由于增加了配重， 为了 提高动作的稳定性， 插销油缸动作， 通过插销把连接架紧固在转台上， 从 而使配重紧紧与转台、 车体锁定； 在本发明的其他实施例中， 也可以没有 自锁功能， 即不包括插销油缸及插销等部件。 It should be noted that, in the above embodiment, in order to prevent the counterweight (block) from falling out of the cylinder, a self-locking method is added, that is, the bolt cylinder is realized, and the bolt cylinder does not operate during transportation, when the lifting operation is performed ( For example, when in the working state shown in FIG. 4, due to the increase of the weight, in order to improve the stability of the action, the bolt cylinder acts, and the connecting bracket is fastened to the turntable by the bolt, so that the weight is tightly coupled with the turntable and the car. Body locking; In other embodiments of the invention, there may be no self-locking function, i.e., components such as a latch cylinder and a latch are not included.
需要说明的是， 上述实施例中， 斜杆 2和竖直杆 4均为连杆， 在替代 实施方式中， 还可以使用其他类型的传力件代替， 例如用强力绳索代替； 在本发明的其他实施方式中， 也可以只包含竖直杆 4 (一个或者多个， 或 者其他类型的传力件）， 不包含斜杆 2 , 直接通过变位油缸 1动作驱动连接 架 9围绕安装座 31摆动； 此外，还可以根据实际需要设置一对以上的竖直 杆或者一对以上的斜杆。 It should be noted that, in the above embodiment, the diagonal rod 2 and the vertical rod 4 are both connecting rods. In an alternative embodiment, other types of force transmitting members may be used instead, for example, with a strong rope; In other embodiments, only the vertical rod 4 (one or more, or other types of force transmitting members) may be included, and the slanting rod 2 is not included, and the connecting bracket 9 is directly driven to swing around the mounting seat 31 by the displacement cylinder 1 action. In addition, one or more vertical bars or one or more diagonal bars may be provided according to actual needs.
需要说明的是， 连接架与配重 （块） 的连接方式也不局限于上述实施 例所述的方式， 例如， 在基本平衡重叠加多个活动平衡重后， 连接架与基 本平衡重上的轴套固定连接。
本发明实施例所提供的一种用于起重机的移动式配重机构， 通过变位 油缸、 一对斜杆、 一对竖直杆和连接架等部件组成推力杆机构， 可以改变 配重的位置， 使得整车重心位置发生变化， 增大了起重机在同一工况时的 吊载能力， 同时扩大了吊载范围， 无需停止作业移动整车即可方便吊载重 物， 不但提高了作业效率， 而且减轻了操作员的劳动强度。 It should be noted that the connection manner of the connecting frame and the weight (block) is not limited to the manner described in the above embodiments, for example, after the basic balance overlaps and the plurality of active balance weights, the connecting frame and the basic balance weight are The sleeve is fixedly connected. According to an embodiment of the present invention, a mobile weight mechanism for a crane can change the position of the weight by forming a thrust lever mechanism by a displacement cylinder, a pair of diagonal rods, a pair of vertical rods, and a connecting frame. , the position of the center of gravity of the vehicle changes, the crane's lifting capacity in the same working condition is increased, and the lifting range is expanded, so that it is convenient to carry heavy loads without stopping the operation of the whole vehicle, which not only improves the working efficiency, but also improves the working efficiency. Reduce the labor intensity of the operator.
本发明实施例还提供了一种起重机， 该起重机具有上述移动式配重机 构， 由于上述的移动式配重机构具有上述技术效果， 因此， 具有该移动式 配重机构的起重机也应具备相应的技术效果， 其具体实施过程与上述实施 例类似, 兹不赘述。 The embodiment of the present invention further provides a crane having the above-mentioned mobile weight mechanism. Since the above-mentioned mobile weight mechanism has the above technical effects, the crane having the mobile weight mechanism should also have a corresponding The technical implementation, the specific implementation process is similar to the above embodiment, and will not be described again.
以上所述仅为本发明的较佳实施例而已， 并不用以限制本发明， 凡在 本发明的精神和原则之内， 所作的任何修改、 等同替换、 改进等， 均应包 含在本发明的保护范围之内。
The above is only the preferred embodiment of the present invention, and is not intended to limit the present invention. Any modifications, equivalents, improvements, etc., which are included in the spirit and scope of the present invention, should be included in the present invention. Within the scope of protection.
Claims
1、一种用于起重机的移动式配重机构， 所述起重机包括配重块、 转台 以及固定连接于所述转台的卷扬箱， 其特征在于： 所述移动式配重机构包 括第一传力件、 变位油缸以及与所述配重块固定连接的连接架， 所述第一 传力件的两端分别与所述卷扬箱和所述连接架相连， 所述变位油缸的两端 分别与所述转台 I所述卷扬箱和所述连接架相连。 What is claimed is: 1. A mobile weight mechanism for a crane, the crane comprising a weight, a turntable, and a hoisting box fixedly coupled to the turret, wherein: the mobile weight mechanism includes a first pass a force member, a displacement cylinder, and a connecting frame fixedly connected to the weight, the two ends of the first force transmitting member are respectively connected to the lifting box and the connecting frame, and two of the displacement cylinders The ends are respectively connected to the hoisting box and the connecting frame of the turntable 1.
2、 如权利要求 1所述的移动式配重机构， 其特征在于： 所述移动式配 重机构还包括第二传力件， 所述第二传力件的两端分别与所述卷扬箱和所 述连接架相连， 所述第二传力件与所述第一传力件的夹角大于 0° 小于 45 ° 。 2. The mobile weighting mechanism according to claim 1, wherein: the mobile weighting mechanism further comprises a second force transmitting member, wherein the two ends of the second force transmitting member are respectively hoisted The box is connected to the connecting frame, and the angle between the second force transmitting member and the first force transmitting member is greater than 0° and less than 45°.
3、 如权利要求 2所述的移动式配重机构， 其特征在于： 所述第一传力 件为对称设置的一对竖直杆， 所述一对竖直杆的两端分别与所述卷扬箱和 所述连接架铰接； 所述第二传力件为对称设置的一对斜杆， 所述一对斜杆 的两端分别与所述卷扬箱和所述连接架铰接。 The mobile weighting mechanism according to claim 2, wherein: the first force transmitting member is a pair of vertical rods symmetrically disposed, and two ends of the pair of vertical rods are respectively The hoisting box and the connecting frame are hinged; the second force transmitting member is a pair of symmetrical rods disposed symmetrically, and two ends of the pair of slanting rods are respectively hinged with the hoisting box and the connecting frame.
4、 如权利要求 3所述的移动式配重机构， 其特征在于： 所述卷扬箱的 尾端固定连接有支架， 所述支架上设有第一支座和第二支座， 所述一对竖 直杆的一端与所述第一支座铰接， 所述一对斜杆的一端与所述第二支座铰 接。 The mobile weighting mechanism according to claim 3, wherein: the tail end of the hoisting box is fixedly connected with a bracket, and the bracket is provided with a first support and a second support, One end of a pair of vertical rods is hinged to the first seat, and one end of the pair of diagonal rods is hinged to the second seat.
5、 如权利要求 4所述的移动式配重机构， 其特征在于： 所述连接架上 设有第三支座和第四支座， 所述竖直杆的另一端与所述第三支座铰接， 所 述斜杆的另一端与所述第四支座铰接。 The mobile weight mechanism according to claim 4, wherein: the connecting frame is provided with a third support and a fourth support, and the other end of the vertical rod and the third branch The seat is hinged, and the other end of the diagonal rod is hinged to the fourth seat.
6、 如权利要求 1至 5任一项所述的移动式配重机构， 其特征在于， 所 述移动式配重机构还包括插销油缸和插销， 所述插销油缸的一端与所述转 台或者所述卷扬箱相连， 所述插销油缸的另一端与所述插销相连， 所述卷 扬箱的底部设有带销孔的第一支耳， 所述连接架设有带销孔的第二支耳， 所述插销油缸可在所述第一支耳及所述第二支耳的销孔相互对齐时推动所 述插销***所述销孔。 The mobile weight mechanism according to any one of claims 1 to 5, wherein the mobile weight mechanism further includes a pin cylinder and a latch, one end of the pin cylinder and the turntable or the The hoisting box is connected, the other end of the pin cylinder is connected to the pin, the bottom of the hoisting box is provided with a first lug with a pin hole, and the connecting frame is provided with a second lug with a pin hole The pin cylinder can push the pin into the pin hole when the pin holes of the first lug and the second lug are aligned with each other.
7、 如权利要求 1至 5任一项所述的移动式配重机构， 其特征在于， 所 述连接架上设有对称设置的一对承重件， 所述配重块上设有对称设置的一 对承重槽， 所述承重槽与所述一对承重件的形状、 位置相对应， 所述连接 架通过所述一对^重件嵌入所述一对^重槽内与所述配重块固定连接。 The mobile weight mechanism according to any one of claims 1 to 5, wherein the connecting frame is provided with a pair of bearing members symmetrically disposed, and the weights are symmetrically disposed. One For the bearing groove, the bearing groove corresponds to the shape and position of the pair of bearing members, and the connecting frame is embedded in the pair of weight grooves by the pair of weights and fixed with the weight plate connection.
8、 如权利要求 1至 5任一项所述移动式配重机构， 其特征在于， 所述 变位油缸的缸筒与所述转台或者所述卷扬箱铰接， 所述变位油缸的活塞杆 与所述连接架铰接。 The mobile weight mechanism according to any one of claims 1 to 5, wherein the cylinder of the displacement cylinder is hinged to the turntable or the hoisting box, and the piston of the displacement cylinder The rod is hinged to the connecting frame.
9、 一种起重机， 其特征在于， 所述起重机具有如权利要求 1至 8任一 项所述的移动式配重机构。 A crane, characterized in that the crane has the mobile weight mechanism according to any one of claims 1 to 8.
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| CN201110181113.2 | 2011-06-30 | ||
| CN 201110181113 CN102229415B (en) | 2011-06-30 | 2011-06-30 | Crane and movable-type balance weight mechanism thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| US10647554B2 (en) | 2015-03-24 | 2020-05-12 | Liebherr-Werk Ehingen Gmbh | Mobile crane |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102229415A (en) | 2011-11-02 |
| CN102229415B (en) | 2013-07-17 |
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