WO2012155398A1 - 拉索式支腿结构及包含该拉索式支腿结构的起重机 - Google Patents
拉索式支腿结构及包含该拉索式支腿结构的起重机 Download PDFInfo
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- WO2012155398A1 WO2012155398A1 PCT/CN2011/078308 CN2011078308W WO2012155398A1 WO 2012155398 A1 WO2012155398 A1 WO 2012155398A1 CN 2011078308 W CN2011078308 W CN 2011078308W WO 2012155398 A1 WO2012155398 A1 WO 2012155398A1
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- Prior art keywords
- leg
- cable
- main
- movable
- disposed
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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
- B66C23/78—Supports, e.g. outriggers, for mobile cranes
- B66C23/80—Supports, e.g. outriggers, for mobile cranes hydraulically actuated
Definitions
- the present invention relates to a lifting apparatus, and in particular to a cable-type leg structure and a crane including the cable-type leg structure .
- BACKGROUND OF THE INVENTION At present, the box-shaped leg structures of small tonnage to large tonnage and super-tonnage wheeled cranes adopt rectangular cross-sections.
- the leg structure mainly has two forms of H-shaped legs and X-shaped legs, generally consisting of two It consists of a section leg, a horizontal cylinder, a vertical cylinder and other accessories. With the development of wheeled cranes to large tonnage, the structure of the legs is mainly X-shaped.
- the X-shaped load bearing method is different from the H-shaped leg, which puts higher requirements on the design of the leg structure.
- the upper cover plate and the two side plates are right-angled transitions, stress concentration exists at the corners, the stress distribution of the overall structure of the legs is uneven, and structural buckling problems exist in the corresponding positions of the side plates.
- the present invention is directed to a cable-type leg structure and a crane including the cable-type leg structure.
- the cable device controls the deflection of the leg within a certain range, thereby improving the overall rigidity of the cable-type leg structure.
- a cable leg structure comprising: a main leg including a base and a main leg mating end, the base being from the connecting end of the main leg The end of the lower extended base;
- the movable leg comprises a movable leg supporting end and a movable leg supporting end, and the movable leg supporting end is an outrigger end of the movable leg, and a support portion is extended downward from the extended end, the movable leg engaging end and the main The leg engaging ends are slidably sleeved; and further comprising: a cable device disposed diagonally on the base of the main leg and the movable leg supporting end of the movable leg.
- the cable device comprises: a first connecting member disposed at a lower portion of the base of the main leg; a second connecting member disposed at an upper portion of the movable leg supporting end of the movable leg; the cable, one end connected to the first The connector is connected to the second connector at the other end.
- the first connecting member is a first pin shaft that is disposed at a lower portion of the base of the main leg
- the second connecting member is a second pin shaft that is disposed at an upper portion of the movable leg supporting end of the movable leg.
- the cable has two wires, and the first pin shaft and the second pin shaft on both sides are respectively connected.
- the cable device further includes a hook connected to one end of the cable, and an adjusting bolt connected to the other end of the cable, the hook is hung on the first pin shaft, and the adjusting bolt is disposed on the bolt hole of the second pin shaft.
- a tension adjusting wheel is further disposed on the main leg and/or the movable leg, and the cable is wound around the tension adjusting wheel.
- the main leg includes a first upper cover plate forming a cylindrical body, a first right side plate, a first lower bottom plate and a first left side plate;
- the movable leg includes a second upper cover plate forming a cylindrical body, and a second a right side plate, a second lower floor and a second left side; a first stress relief between the first upper cover and the first right side plate, and between the first upper cover and the first left side plate
- a second transition connection structure for eliminating stress concentration is disposed between the second upper cover plate and the second right side plate and between the second upper cover plate and the second left side plate.
- the first transition connection structure and the second transition connection structure are arc transition structures.
- the main leg is sleeved outside the movable leg, and a first telescopic cylinder is disposed between the main leg and the movable leg along the sliding direction of the movable leg, and the cylinder of the first telescopic cylinder is fixedly connected to the main branch On the leg, the piston rod is fixedly attached to the movable leg.
- a coupling pin is disposed at the mating end of the main leg and the movable leg, and a plurality of selectable pin holes for placing the connecting pin are disposed on the movable leg in the sliding direction.
- the cable-type leg structure further includes: an upper carrier block disposed on an inner wall of the interface of the first upper cover; and a lower carrier block disposed on the inner wall of the first lower floor, the number of which is at least one; a block disposed on the inner wall of the first upper cover, the number of which is at least one; a guide wheel disposed on an inner wall at the interface of the first lower base; the shape of the upper load block, the lower load block and the guide block and the movable leg
- the outer cylinder wall shape is adapted. According to another aspect of the present invention, there is provided a crane comprising the above-described cable leg structure.
- the cable-type leg structure includes a main leg and a movable leg, and the main leg and the movable leg are sleeved, and a cable device is disposed between the main leg and the movable leg.
- the cable device controls the deflection of the leg within a certain range, which solves the problem of large bending deformation of the large-span full-span crane of the large-tonnage all-terrain crane, and avoids the problem that the outrigger of the leg is excessively large and interferes with other components.
- connection structure can eliminate the right angle transition between the upper cover plate and the two side plates, stress concentration at the corner, uneven stress distribution of the overall structure of the leg, and improved support performance of the leg structure. Because it is an improvement to the structure of the leg itself, there is no need to add new components, which effectively reduces the cost, reduces the processing difficulty, improves the material utilization rate, and avoids the increase in the weight of the leg structure.
- the main support leg and the movable support leg have a full-package multi-slider structure, which increases the effective bearing area, changes the traditional shear stress into compressive stress, and has the function of lateral guiding and bearing the plane load of the plane.
- FIG. 1 is a schematic view showing the assembly structure of a cable-type leg structure according to a first embodiment of the present invention
- FIG. 2 is a schematic front view showing the main leg according to an embodiment of the present invention.
- Figure 3 shows a schematic cross-sectional view of a main leg according to an embodiment of the present invention;
- Figure 4 shows a schematic front view of a movable leg according to an embodiment of the present invention;
- Figure 5 shows a schematic view of the movable leg according to the present invention;
- FIG. 1 is a schematic view showing the assembly structure of a cable-type leg structure according to a first embodiment of the present invention
- FIG. 2 is a schematic front view showing the main leg according to an embodiment of the present invention.
- Figure 3 shows a schematic cross-sectional view of a main leg according to an embodiment of the present invention;
- Figure 4 shows a schematic front view of a movable leg according to an embodiment of the present invention;
- Figure 5 shows a schematic view of the movable leg according to
- FIG. 6 is a cross-sectional structural view showing the overlapping of the main leg end and the movable leg according to an embodiment of the present invention
- FIG. 7 is a view showing a cross-sectional structure of the main leg end and the movable leg according to the embodiment of the present invention
- FIG. 8 is a schematic structural view of a cable device of a cable-type leg structure according to an embodiment of the present invention
- FIG. 9 is a schematic view showing a cross-sectional structure of a movable leg end portion of the embodiment
- a schematic view of the assembly structure of the cable-type leg structure according to the second embodiment of the present invention is shown.
- a cable-type leg structure includes a main leg 1 and a movable leg 3, and the main leg 1 includes a first upper cover forming a cylindrical body.
- a first transition connection structure for eliminating stress concentration is disposed between the side plates 103;
- the movable leg 3 includes a second upper cover plate 302, a second right side plate 304, a second lower bottom plate 305, and a second forming a cylindrical body.
- a second transition structure is disposed between the second upper cover 302 and the second right side plate 304 and between the second upper cover 302 and the second left side plate 303.
- the first upper cover 100 is integrally formed with the first transitional connection structure, and the first left side plate 103 and the first right side plate 102 are respectively opposite to the first upper cover 100
- the first transitional connection structure is connected, and the first lower bottom plate 101 connects the first left side plate 103 and the bottom end of the first right side plate 102 together. Both ends of the first upper cover 100 are bent to form a first transitional connection structure, and the first left side plate 103 and the first right side plate 102 are coupled to the first transitional connection structure.
- a connecting section may be further disposed between the first transitional connection structure and the first left side plate 103, the first transitional connection structure and the first right side plate 102, and the connection sections are respectively disposed at the ends of the two first transitional structures, and Forming a body with the first upper cover 100.
- the structural composition may also be that the first upper cover 100 includes a left upper cover and a right upper cover, a left upper cover, and a left first transition connection.
- the structure and the first left side plate 103 are integrally formed by bending, and the right upper cover plate, the right first transition connection structure and the first right side plate 102 are integrally bent and formed, and the first lower bottom plate 101 will be the first left side.
- the plate 103 and the bottom end of the first right side plate 102 are welded together, and the left upper cover and the right upper cover are welded together.
- the second upper cover 302 is integrally formed with the second transitional connection structure, and the second left side plate 303 and the second right side plate 304 are respectively opposite to the second upper cover plate 302.
- the second transitional connection structure is connected, and the second lower bottom plate 305 connects the bottom ends of the second left side plate 303 and the second right side plate 304 together.
- the structural composition may further include that the second upper cover 302 includes a second left upper cover and a second right upper cover, and the second left upper cover,
- the second left transition joint structure and the second left side plate 303 are integrally formed
- the second right upper cover plate, the right second transition connection structure and the second right side plate 304 are integrally formed
- the second lower bottom plate 305 is The bottom ends of the second left side plate 303 and the second right side plate 304 are joined together.
- the shapes of the mating portions of the main leg 1 and the movable leg 3 are adapted and sleeved together, and the structural combination thereof can be in various ways.
- the first transition connection structure and the second transition connection structure may be a circular arc transition connection structure, or may be a slope transition connection structure, or other structure capable of avoiding a stress concentration problem at a corner between the upper cover plate and the side plate.
- the transition connection structure between the upper cover and the side plate is a large rounded transition, which solves the problem of stress concentration and structural buckling at the right angle transition, so that the leg structure The overall stress distribution is uniform and the stress distribution is more reasonable. Because it is an improvement to the structure of the leg itself, there is no need to add new components, which effectively reduces the cost, reduces the processing difficulty, improves the material utilization rate, and avoids the increase in the weight of the leg structure.
- the main leg 1 includes a main support end and a main leg mating end, the main support end is a connection end with the frame 7, including a main support portion connected to the frame 7, in the main leg
- the main support portion of 1 includes a base extending downward from the main support end of the main leg 1 and rotatably disposed on the frame.
- the base has a sleeve extending downward from the support end of the main leg 1, and when installed, the sleeve hole of the base is aligned with the sleeve hole on the frame 7, and then inserted
- the pin shaft is coupled such that the main leg 1 is rotatably disposed on the frame 7.
- a connecting shaft may also be disposed on the frame 7, and a sleeve of the base is sleeved on the connecting shaft to connect the main leg 1 and the frame 7 together.
- the frame 7 and the main leg 1 may also be a mating structure.
- the base of the main leg 1 is a downwardly extending support connecting shaft, and the frame 7 is provided with a shaft hole for mounting the supporting connecting shaft.
- the base of the main leg 1 is placed in a shaft hole in the frame 7, and the rotational support of the main leg 1 is achieved.
- the movable leg 3 used in conjunction with the main leg 1 includes a movable leg supporting end and a movable leg engaging end, and the movable leg supporting end is an extended end of the movable leg 3, and extends downward from the extended end.
- the support portion, the movable leg engaging end and the main leg engaging end are slidably sleeved; the cable type leg structure of the embodiment further comprises a diagonally disposed main support end of the main leg 1 and the movable leg
- the diagonal arrangement of the cable device ensures that the cable device can always adjust the force of the main leg 1 and the movable leg 3, effectively control the deflection of the leg structure, and relieve the bending deformation of the large span leg of the crane.
- the cable device 4 includes a first connecting member, a second connecting member, and a cable 400 connecting the first connecting member and the second connecting member.
- the base of the main leg 1 includes a king pin 104 that is coupled to the body of the crane by a king pin 104 disposed on the base.
- a first connecting member disposed through the base is disposed below the kingpin shaft 104.
- the first connecting member is a first pin shaft 105
- the first pin shaft 105 is disposed at a lower end position of the base portion.
- a fixed position can be provided for the cable device 4 shown in FIG.
- An upper carrier block 107 is provided on the inner wall of the end opening of the main leg 1 at the mating end of the movable leg 3, the shape of the upper carrier block 107 being the same as the shape of the outer cylinder wall of the movable leg 3 shown in FIG.
- the upper carrier block 107 adopts a full-package multi-slider structure, so that the force between the movable leg 3 and the main leg 1 is more reasonable.
- At least one guide block 109 is disposed on the inner wall of the first upper cover 100 of the main leg 1, and two guide wheels 106 are disposed on the inner wall of the first lower bottom plate 101 of the main leg 1, and at least one lower
- the carrier block 110 preferably, has two lower carrier sliders 110.
- the shape of the guide block 109 and the lower carrier block 110 is adapted to the structure of the outer cylinder of the movable leg 3.
- a pin hole is provided in the middle of the mating end of the main leg 1 with the movable leg 3, and the connecting pin 108 is disposed on the pin hole.
- at least one set of clearance fits is disposed on the inner walls of the second upper cover 302 and the second left side plate 303 of the movable leg 3 at the mating end of the main leg 1.
- Block 300, the thickness of the clearance fit block 300 is adapted to the sidewall clearance between the movable leg 3 and the main leg 1.
- a second telescopic cylinder 5 is fixedly disposed at a position of the other end of the movable leg 3 perpendicular to the sliding direction of the movable leg 3, and a lower end of the second telescopic cylinder 5 is provided with a leg plate 6, a leg plate 6 and a second telescopic cylinder 5 cooperates to form a support portion of the movable leg 3.
- the mounting position of the second telescopic cylinder 5 on the movable leg 3 can also be replaced by a multi-section telescopic mechanism, so that the movable leg 3 can satisfy the support requirement of a longer telescopic length, thereby achieving greater applicability.
- a second connecting member is disposed at an upper portion of the movable leg supporting end of the movable leg 3.
- the second connecting member is the second pin 401, and the second pin 401 passes through the two of the movable legs 3.
- the side panels are disposed on the movable legs 3. As shown in Figures 6 and 7, and referring to Figure 1, the main leg 1 is sleeved outside the movable leg 3.
- a first telescopic cylinder block 111 is disposed in the middle of the base of the main leg 1, and a support pulley 301 is disposed at a port of the movable leg 3 that is engaged with the main leg 1.
- a first telescopic cylinder 2 is disposed between the main leg 1 and the movable leg 3 along the sliding direction of the movable leg 3, and the end of the cylinder of the first telescopic cylinder 2 is hinged on the first telescopic cylinder block 111, the head of the piston rod Fixedly connected to the movable leg 3, the movable leg 3 is telescoped in the cylinder of the main leg 1 through the first telescopic cylinder 2, and the cylinder of the first telescopic cylinder 2 can be rolled on the support pulley 301 and supported by the pulley 301 provides support for the cylinder block.
- the upper carrier block 107 is subjected to an upward load.
- the cable-type leg structure may further include a cable device 4, and the cable device 4 is diagonally disposed on the lower portion of the base of the cable-type leg structure and the movable leg. Support end, pair of cable leg structure A tensioning force is applied to reduce the deflection due to the load.
- the cable device 4 includes a cable 400, a first pin shaft 105 disposed at a lower position of the base of the main leg 1, and a second pin shaft 401 of an upper portion of the movable leg supporting end of the movable leg 3.
- a hook 402 is disposed at one end of the cable, and an adjusting bolt 403 is disposed at the other end.
- the cable 400 is hung on the first pin shaft 105 through the hook 402, and is connected to the second pin shaft 401 by an adjusting bolt 403.
- Bolt holes are provided at both ends of the second pin shaft 401, and the adjusting bolt passes through the second pin.
- the bolt hole on the shaft of the shaft 401 is disposed and can move in the bolt hole on the second pin shaft 401.
- the cable pair cable is controlled.
- the tension at both ends of the leg structure controls the deflection of the cable leg structure.
- a lock nut is provided at the other end of the adjusting bolt 403, .
- the cable device 400 of the cable device 4 has two wires, which are respectively connected to the first pin shaft 105 and the second pin shaft 401 on both sides of the cable-type leg structure, and can be a cable-type branch from both sides of the cable-type leg structure.
- the leg structure provides a stable and balanced tensioning force, which makes the tension of the cable-type leg structure more balanced, and the structure is more stable, effectively preventing deformation and lifting during the working process of the cable-type leg structure. Restriction is performed at both ends of the first pin shaft 105 by a pin to prevent the hook 402 from slipping off the first pin shaft 105.
- the cable 400 can also have only one, or more than two. When there is only one cable 400, one end is disposed on the inner side of the base of the main leg 1, and the other end is disposed on the second lower bottom plate 205 of the movable leg 3, and the end portion can be fixedly disposed on the second lower bottom plate 205 by bolts.
- an adapter may be disposed on the inner side of the second lower bottom plate 205 and the base to connect the cable 400 to the adapter.
- the cable 400 is still disposed through the pin as described above, and the second lower bottom plate 205 and the corresponding position of the base are provided with long grooves, and the cable 400 passes through the long groove. It is connected to the middle position of the two pins to ensure the tension of the tension applied by the cable device 4 to the cable-type leg structure.
- at least one tension adjusting wheel may be provided on the main leg 1 and/or the movable leg 3, and the cable 400 is wound around the tension adjusting wheel.
- the tension adjusting wheel can also conveniently adjust the tension of the cable device 400 to control the deflection of the cable leg structure.
- the length of the cable 400 of the cable device 4 can be adjusted according to the extension of the movable leg 3. After the position of the movable leg 3 is determined, the cable 400 is adjusted to a suitable length, and then the tension of the cable 400 is finely adjusted by the adjusting bolt 403, so that the cable device 4 can be made more adaptable.
- the hook 402 of the cable device 4 may be connected in the form of a closed cable joint or an open cable joint.
- the main leg 1 and the movable leg 3 form a leg body in the form of a socket and a cable puller 4, the main leg 1 being disposed on the crane body via the kingpin 104, and the movable leg 3 passing through the first telescopic cylinder 2 in the main leg 1 The cylinder is stretched.
- the pin 108 is first pulled out, the first telescopic cylinder 2 is extended, the movable leg 3 is slid to a predetermined position, and then the pin 108 is inserted into the pin hole of the main leg 1 and In the other pin hole on the movable leg 3 at the corresponding position, the second telescopic cylinder 5 is controlled to extend, the foot plate 6 is supported on the ground and the crane is propped up, and finally the cable 400 of the cable device 4 is adjusted.
- the length of the hook 402 is hung on the first pin 105 to accommodate the length of the cable leg structure at the current working position.
- the support pulley 301 effectively reduces the friction between the first telescopic cylinder 2 and the movable leg 3 during operation, and reduces energy consumption; a plurality of guiding blocks on the inner wall of the first upper cover 100 of the main leg 1 109, and two guide wheels 106 at the front end of the first lower floor 101 are guided, and the guide wheel 106 can convert the sliding friction of the movable leg 3 into rolling friction, which greatly reduces the relationship between the main leg 1 and the movable leg 3.
- the frictional force increases the work efficiency and reduces the force required to overcome the friction between the main leg 1 and the movable leg 3.
- the main support portion of the main leg 1 is fixedly disposed on the frame 7, and a lug is provided at the lower end of the frame 7, one end of the cable device It is disposed on the lug and the other end is connected to the upper position of the movable leg supporting end of the movable leg 3.
- the lug is movable at the bottom position of the frame 7, and is fixed by a stop bolt or the like after reaching a suitable position to adjust the tension of the cable device 4 to suit the needs of use.
- the structure of the cable device 4 disposed at the lower end of the frame 7 may also be a pull ring to which the cable device 4 is hinged.
- the structure can also be in other forms of connection, such as bolted connections.
- the cable device 4 may also be respectively disposed at an upper portion of the base of the main leg 1 and a lower portion of the movable leg supporting end of the movable leg 3, or an upper portion of the frame 7 and a lower portion of the movable leg supporting end of the movable leg 3, It is not limited to the form described in the embodiment, and may be selected according to actual conditions and mechanical design requirements, and these structural forms are all included in the protection scope of the present invention.
- the upper carrier block 107 of the head of the main leg 1 and the second upper cover plate 302 of the movable leg 3, the lower carrier plate 110 and the movable branch on the main leg 1 The clearance mating block 300 on the two side panels of the leg 3 transmits a load, the upper carrier block 107 is subjected to an upward load, and the lower carrier block 110 carries a downward load.
- the cable device 4 is directly connected to the base of the main leg 1 via a cable 400 and transmits a partial load, its horizontal load By the pin 108 at the socket of the main leg 1 and the movable leg 3, the vertical load can be used to control the deflection of the leg.
- the crane according to the present invention includes the above-described cable-type leg structure. From the above description, it can be seen that the above-described embodiments of the present invention achieve the following technical effects:
- the cable-type leg structure includes a main leg and a movable leg, and the main leg and the movable leg are sleeved.
- a cable device is arranged between the main leg and the movable leg, and the cable device controls the deflection of the leg within a certain range, thereby solving the problem of large bending deformation of the large-span full-span crane of the large-tonnage ground crane, and avoiding The problem that the legs are too large to interfere with other components.
- the connection structure can eliminate the right angle transition between the upper cover plate and the two side plates, stress concentration at the corner, uneven stress distribution of the overall structure of the leg, and improved support performance of the leg structure.
- the main support leg and the movable support leg have a full-package multi-slider structure, which increases the effective bearing area, changes the traditional shear stress into compressive stress, and has the function of lateral guiding and bearing the plane load of the plane.
- the cross section of the leg of the structure is smaller than the rectangular cross section, which reduces the space occupied by the leg and reduces the weight of the leg.
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Description
拉索式支腿结构及包含该拉索式支腿结构的起重机 技术领域 本发明涉及起重设备, 具体而言, 涉及一种拉索式支腿结构及包含该拉索式支腿 结构的起重机。 背景技术 目前国内外从小吨位到大吨位、 超大吨位轮式起重机的箱形支腿结构均采用矩形 截面, 这种支腿结构主要有 H形支腿、 X形支腿两种形式, 一般由两节支腿、 水平油 缸、 垂直油缸及其它附件组成。 随着轮式起重机向大吨位发展, 支腿结构形式主要为 X形。 X形承载方式并不同 于 H形支腿, 其对支腿结构的设计提出了更高要求。 传统矩形截面箱形支腿中, 上盖 板与两侧板是直角过渡, 在转角处存在应力集中, 支腿整体结构应力分布不均匀, 在 侧板相应位置还存在结构屈曲问题, 现有国内外厂家在此处采用加大板厚, 添加槽钢 的方式解决此问题; 大吨位、 超大吨位轮式起重机支腿跨距大, 造成了支腿整体弯曲 变形大, 与上车转台、 配重干涉, 国内外厂家利用增大箱体截面和加筋板方式提高支 腿整体刚度解决此问题; 传统方式是两支腿上盖板搭接传递载荷, 大吨位支腿采用这 种方式造成上盖板搭接处存在局部弯曲大和局部屈曲问题, 国内外厂家采用侧向搭接 板承载和添加槽钢的方式解决此问题。 这样加大板厚、 增大箱体截面、 加筋板、 槽钢等造成了支腿结构尺寸大, 重量重, 材料利用率低, 对整车的布局也造成了诸多不便, 并且导致装拆非常麻烦, 增大了附 加成本。 发明内容 本发明旨在提供一种拉索式支腿结构及包含该拉索式支腿结构的起重机, 拉索装 置将支腿挠度控制在一定范围内, 提高了拉索式支腿结构整体刚度, 解决了大吨位全 地面起重机大跨距支腿整体弯曲变形大的问题, 同时避免了支腿上翘量过大而与其它 部件干涉。 为了实现上述目的, 根据本发明的一个方面, 提供了一种拉索式支腿结构, 包括: 主支腿,包括基座和主支腿配合端,基座为从主支腿的连接端向下延伸的基座所在端;
活动支腿, 包括活动支腿支撑端和活动支腿配合端, 活动支腿支撑端为活动支腿的外 伸端, 从该外伸端向下延伸形成支撑部, 活动支腿配合端与主支腿配合端之间可滑动 地套接; 还包括: 拉索装置, 对角设置在主支腿的基座和活动支腿的活动支腿支撑端。 进一步地, 拉索装置包括: 第一连接件, 设置在主支腿的基座的下部; 第二连接 件, 设置在活动支腿的活动支腿支撑端的上部; 拉索, 一端连接至第一连接件, 另一 端连接至第二连接件。 进一步地, 第一连接件为第一销轴, 穿设在主支腿的基座的下部, 第二连接件为 第二销轴, 穿设在活动支腿的活动支腿支撑端的上部。 进一步地, 拉索有两根, 分别连接两侧的第一销轴与第二销轴。 进一步地, 拉索装置还包括连接在拉索一端的挂钩, 以及连接在拉索另一端的调 节螺栓, 挂钩挂设在第一销轴上, 调节螺栓设置在第二销轴的螺栓孔上。 进一步地,在主支腿和 /或活动支腿上还设置有张力调节轮,拉索绕经张力调节轮。 进一步地, 主支腿包括形成筒体的第一上盖板、 第一右侧板、 第一下底板和第一 左侧板; 活动支腿包括形成筒体的第二上盖板、 第二右侧板、 第二下底板和第二左侧 板; 第一上盖板与第一右侧板之间、 第一上盖板与第一左侧板之间均设置有消除应力 集中的第一过渡连接结构; 第二上盖板与第二右侧板之间、 第二上盖板与第二左侧板 之间均设置有消除应力集中的第二过渡连接结构。 进一步地, 第一过渡连接结构和第二过渡连接结构为圆弧过渡连接结构。 进一步地, 主支腿套接在活动支腿外, 在主支腿与活动支腿之间沿活动支腿的滑 动方向设置有第一伸缩油缸, 第一伸缩油缸的缸体固定连接在主支腿上, 活塞杆固定 连接在活动支腿上。 进一步地, 在主支腿与活动支腿的配合端设置有连接销轴, 在活动支腿上沿滑动 方向设置有多个放置连接销轴的可选择的销轴孔。 进一步地, 拉索式支腿结构还包括: 上承载块, 设置在第一上盖板的接口处的内 壁上; 下承载块, 设置在第一下底板的内壁上, 数量至少为一个; 导向块, 设置在第 一上盖板的内壁上, 数量至少为一个; 导向轮, 设置在第一下底板的接口处的内壁上; 上承载块、 下承载块和导向块的形状与活动支腿的外筒筒壁形状相适应。 根据本发明 的另一方面, 提供了一种起重机, 包括上述的拉索式支腿结构。
根据本发明的技术方案, 拉索式支腿结构包括主支腿和活动支腿, 主支腿和活动 支腿之间为套接, 在主支腿和活动支腿之间设置有拉索装置, 拉索装置将支腿挠度控 制在一定范围内, 解决了大吨位全地面起重机大跨距支腿整体弯曲变形大的问题, 同 时避免了支腿上翘量过大而与其它部件干涉的问题。 主支腿和活动支腿的上盖板与侧 板之间具有消除应力集中的过渡连接结构, 这种结构可以是圆弧过渡连接。 这种连接 结构能够消除上盖板与两侧板是直角过渡, 在转角处存在应力集中, 支腿整体结构应 力分布不均匀的问题, 提高支腿结构的支撑性能。 因为是对支腿结构本身所做出的改 善, 因此, 无需增加新的组件, 有效降低了成本, 减少了加工难度, 提高了材料利用 率, 也避免了支腿结构重量的增加。 主支腿与活动支腿上承载块采用全包式多滑块结 构, 增大了有效承载面积, 使传统的剪切应力变为压应力, 且具有侧向导向和承受回 转平面载荷的作用。此外, 此结构形式支腿截面较矩形截面小, 减小了支腿占用空间, 减轻了支腿重量。 附图说明 构成本发明的一部分的附图用来提供对本发明的进一步理解, 本发明的示意性实 施例及其说明用于解释本发明, 并不构成对本发明的不当限定。 在附图中: 图 1示出了根据本发明的第一实施例的拉索式支腿结构的装配结构示意图; 图 2示出了根据本发明的实施例的主支腿的主视结构示意图; 图 3示出了根据本发明的实施例的主支腿的截面结构示意图; 图 4示出了根据本发明的实施例的活动支腿的主视结构示意图; 图 5示出了根据本发明的实施例的活动支腿的截面结构示意图; 图 6示出了根据本发明的实施例的主支腿端部与活动支腿搭接处的截面结构示意 图; 图 7示出了根据本发明的实施例的活动支腿端部与主支腿搭接处的截面结构示意 图; 图 8示出了根据本发明的实施例的拉索式支腿结构的拉索装置的结构示意图; 以 及 图 9示出了根据本发明的第二实施例的拉索式支腿结构的装配结构示意图。
具体实施方式 下文中将参考附图并结合实施例来详细说明本发明。 需要说明的是, 在不冲突的 情况下, 本申请中的实施例及实施例中的特征可以相互组合。 如图 1至图 9所示, 根据本发明的第一实施例, 拉索式支腿结构包括有主支腿 1 和活动支腿 3, 主支腿 1包括有形成筒体的第一上盖板 100、 第一右侧板 102、 第一下 底板 101和第一左侧板 103, 在第一上盖板 100与第一右侧板 102之间、 第一上盖板 100与第一左侧板 103之间均设置有消除应力集中的第一过渡连接结构; 活动支腿 3 包括有形成筒体的第二上盖板 302、 第二右侧板 304、 第二下底板 305和第二左侧板 303; 第二上盖板 302与第二右侧板 304之间、第二上盖板 302与第二左侧板 303之间 均设置有第二过渡连接结构。 在主支腿 1所形成的筒体中, 第一上盖板 100与第一过渡连接结构一体成型, 第 一左侧板 103和第一右侧板 102分别与第一上盖板 100两侧的第一过渡连接结构连接, 第一下底板 101将第一左侧板 103和第一右侧板 102的底端连接在一起。 第一上盖板 100的两端通过折弯形成第一过渡连接结构, 第一左侧板 103和第一右侧板 102与第 一过渡连接结构连接在一起。 在第一过渡连接结构和第一左侧板 103、 第一过渡连接 结构和第一右侧板 102之间还可以设置连接段, 连接段分别设置在两个第一过渡连接 结构的末端, 并与第一上盖板 100—体折弯成型。 在主支腿 1所形成的筒体中, 其结构组成还可以为, 第一上盖板 100包括左侧上 盖板和右侧上盖板, 左侧上盖板、 左侧第一过渡连接结构和第一左侧板 103为一体折 弯成型, 右侧上盖板、 右侧第一过渡连接结构和第一右侧板 102为一体折弯成型, 第 一下底板 101将第一左侧板 103和第一右侧板 102的底端焊接在一起, 左侧上盖板和 右侧上盖板焊接在一起。 在活动支腿 3所形成的筒体中, 第二上盖板 302与第二过渡连接结构一体成型, 第二左侧板 303和第二右侧板 304分别与第二上盖板 302两侧的第二过渡连接结构连 接, 第二下底板 305将第二左侧板 303和第二右侧板 304的底端连接在一起。 在活动 支腿 3所形成的筒体中, 其结构组成还可以为, 第二上盖板 302包括第二左侧上盖板 和第二右侧上盖板, 第二左侧上盖板、 左侧第二过渡连接结构和第二左侧板 303为一 体成型, 第二右侧上盖板、 右侧第二过渡连接结构和第二右侧板 304为一体成型, 第 二下底板 305将第二左侧板 303和第二右侧板 304的底端连接在一起。 主支腿 1和活动支腿 3相互配合的部分的形状相适应, 并套接在一起, 其结构组 合可以为多种方式。
第一过渡连接结构和第二过渡连接结构可以为圆弧过渡连接结构, 也可以为斜面 过渡连接结构, 或者其它能够避免上盖板与侧板之间的转角处存在应力集中问题的结 构。 如图 3和图 5所示, 在本实施例中, 上盖板与侧板之间的过渡连接结构为大圆角 过渡, 解决了直角过渡处产生应力集中和结构屈曲的问题, 使得支腿结构整体应力分 布均匀, 应力分布更加合理。 因为是对支腿结构本身所做出的改善, 因此, 无需增加 新的组件, 有效降低了成本, 减少了加工难度, 提高了材料利用率, 也避免了支腿结 构重量的增加。 结合参见图 1, 主支腿 1包括有主支撑端和主支腿配合端, 主支撑端为与车架 7 的连接端, 包括有连接在车架 7上的主支撑部; 在主支腿 1的主支撑部包括有基座, 基座从主支腿 1的主支撑端向下延伸, 并可转动地设置在车架上。 在本实施例中, 该 基座具有从主支腿 1的支撑端向下延伸的套筒, 当进行安装时, 将基座的套筒孔与车 架 7上的套筒孔对齐, 然后插入连接销轴, 使主支腿 1可转动地设置在车架 7上。 车 架 7上也可以设置连接轴, 基座的套筒套设在该连接轴上, 将主支腿 1和车架 7连接 在一起。 车架 7和主支腿 1也可以为这样一种配合结构, 主支腿 1的基座为向下延伸 的支承连接轴, 在车架 7上设置有安装该支撑连接轴的轴孔, 将主支腿 1的基座放置 在车架 7上的轴孔内, 实现主支腿 1的转动支撑。 与主支腿 1配合使用的活动支腿 3包括有活动支腿支撑端和活动支腿配合端, 活 动支腿支撑端为活动支腿 3的外伸端, 从该外伸端向下延伸形成支撑部, 活动支腿配 合端与主支腿配合端之间可滑动地套接; 本实施例的拉索式支腿结构还包括对角设置 在主支腿 1的主支撑端和活动支腿 3的活动支腿支撑端的拉索装置 4。 拉索装置对角 设置, 能够保证拉索装置始终能够对主支腿 1和活动支腿 3的受力起到调节作用, 有 效控制支腿结构的挠度, 缓解起重机大跨距支腿弯曲变形大的问题。 拉索装置 4包括 第一连接件、 第二连接件, 以及连接第一连接件与第二连接件的拉索 400。 如图 1和图 2所示, 主支腿 1的的基座包括有主销轴 104, 主支腿 1通过设置在 基座上的主销轴 104与起重机的本体连接在一起。 在主销轴 104的下方设置有穿过基 座设置的第一连接件, 在本实施例中, 第一连接件为第一销轴 105, 第一销轴 105设 置在基座的下端位置处, 能够为图 8中所示的拉索装置 4提供固定位置。 在主支腿 1 的与活动支腿 3配合端的端部开口处的内壁上设置有上承载块 107, 上承载块 107的 形状与图 1中所示的活动支腿 3的外筒壁形状相适应, 能够承受向上载荷, 将活动支 腿 3的剪切应力变为压应力, 增大了有效承载面积, 且具有侧向导向和承受回转平面
载荷的作用。 优选地, 上承载块 107采用全包式多滑块结构, 使得活动支腿 3与主支 腿 1之间的受力更加合理。 在主支腿 1 的第一上盖板 100的内壁上设置有至少一个导向块 109, 在主支腿 1 的第一下底板 101的内壁上设置有两个导向轮 106, 以及至少一个的下承载块 110, 优 选地, 该下承载滑块 110为两个。 导向块 109以及下承载块 110的形状与活动支腿 3 的外筒体的结构相适应。 在主支腿 1的与活动支腿 3的配合端的中部设置有销轴孔, 连接销轴 108设置在销轴孔上。 如图 4所示, 结合参见图 1和图 2, 活动支腿 3的与主支腿 1配合端的第二上盖 板 302和第二左侧板 303的内壁上对应设置有至少一组间隙配合块 300, 间隙配合块 300的厚度与活动支腿 3和主支腿 1之间的侧壁间隙相适应。 在活动支腿 3的两个侧 壁上相对应于主支腿 1的连接销轴 108的高度处, 设置有多个与连接销轴 108相配合 的销轴孔, 以便对活动支腿 3在工作时或非工作时进行有效锁定。 在活动支腿 3的另 一端端部位置垂直于活动支腿 3 的滑动方向固定设置有第二伸缩油缸 5, 第二伸缩油 缸 5的下端设置有支脚板 6, 支脚板 6与第二伸缩油缸 5配合构成活动支腿 3的支撑 部分。 活动支腿 3上的第二伸缩油缸 5的安装位置处也可以用多节伸缩机构来进行替 代, 使活动支腿 3能够满足较长伸缩长度的支撑要求, 实现更大的适用性。 在活动支 腿 3的活动支腿支撑端的上部设置有第二连接件, 在本实施例中, 第二连接件为第二 销轴 401, 第二销轴 401穿过活动支腿 3的两个侧板设置在活动支腿 3上。 如图 6和图 7所示, 并结合参见图 1, 主支腿 1套接在活动支腿 3外。在主支腿 1 的基座的中部设置有第一伸缩油缸座 111, 活动支腿 3的与主支腿 1配合端的端口处 设置有支撑滑轮 301。 主支腿 1与活动支腿 3之间沿活动支腿 3的滑动方向设置有第 一伸缩油缸 2, 第一伸缩油缸 2的缸体一端铰接在第一伸缩油缸座 111上, 活塞杆头 部固定连接在活动支腿 3上, 活动支腿 3通过第一伸缩油缸 2在主支腿 1的筒体中进 行伸缩, 第一伸缩油缸 2的缸体可在支撑滑轮 301上滚动并由支撑滑轮 301为缸体提 供支撑。 上承载块 107承受向上的载荷。 位于活动支腿 3上的间隙配合块 300在到达预定 工作位置时, 与主支腿 1上的下承载块 110形成配合, 并对主支腿 1和活动支腿 3的 侧向位置形成定位, 承受向上的载荷并防止工作过程中主支腿 1和活动支腿 3的侧向 摆动。 如图 8所示, 并结合参见图 1, 拉索式支腿结构还可以包括有拉索装置 4, 拉索装 置 4对角设置在拉索式支腿结构的基座的下部和活动支腿支撑端, 对拉索式支腿结构
施加拉紧作用力,从而减小由于受到载荷影响而产生的挠度。拉索装置 4包括拉索 400、 设置在主支腿 1的基座的下部位置处的第一销轴 105和活动支腿 3的活动支腿支撑端 的上部的第二销轴 401。 在拉索的一端设置有挂钩 402, 另一端设置有调节螺栓 403。 拉索 400通过挂钩 402挂设在第一销轴 105上, 通过调节螺栓 403连接在第二销 轴 401上, 在第二销轴 401的两端设置有螺栓孔, 调节螺栓穿过第二销轴 401的轴杆 上的螺栓孔设置, 并能够在第二销轴 401上的螺栓孔中运动, 通过调节调节螺栓 403 在第二销轴 401上的拧紧度, 控制拉索对拉索式支腿结构两端的拉紧力, 从而控制拉 索式支腿结构的挠度。在调节螺栓 403的另一端设置有锁紧螺母,当通过调节螺栓 403 对拉索 400的拉紧力进行调整后, 通过锁紧螺母对拉索 400进行定位, 从而能够保持 合适的拉紧力。 拉索装置 4的拉索 400有两根, 分别连接拉索式支腿结构两侧的第一销轴 105和 第二销轴 401, 能够从拉索式支腿结构两侧为拉索式支腿结构提供稳定均衡的拉紧力, 使拉索式支腿结构的受力更加平衡, 结构更加稳定, 有效防止拉索式支腿结构工作过 程中的变形翘起。 在第一销轴 105的两端通过插销进行限位, 防止挂钩 402从第一销 轴 105上滑落。 拉索 400也可以只有一根, 或者多于两根。 当拉索 400只有一根时, 一端设置在 主支腿 1的基座内侧, 另一端设置在活动支腿 3的第二下底板 205上, 端部可以通过 螺栓固定设置在第二下底板 205和基座上, 也可以在第二下底板 205和基座的内侧设 置转接件, 将拉索 400连接在转接件上。 当然, 也可以为其他结构的连接方式, 比如 拉索 400仍然通过如上所述的销轴进行设置, 在第二下底板 205以及基座的相应位置 设置有长槽, 拉索 400穿过长槽连接在两个销轴的中部位置, 从而保证拉索装置 4对 拉索式支腿结构施加的拉紧力平衡。 在一个未示出的实施例中,在主支腿 1和 /或活动支腿 3上还可以设置至少一个张 力调节轮, 拉索 400绕经张力调节轮。 张力调节轮也可以很方便的调整拉索装置 400 的拉紧力, 从而控制拉索式支腿结构的挠度。 优选地, 拉索装置 4的拉索 400的长度可以根据活动支腿 3的伸出度进行调整。 当活动支腿 3的位置确定之后,将拉索 400调整到合适长度,然后再通过调节螺栓 403 对拉索 400的拉紧度进行微调, 可以使拉索装置 4具有更好的适应性。 另外, 拉索装 置 4的挂钩 402连接方式可以是闭式索节或者开式索节等形式。 主支腿 1和活动支腿 3通过套接和拉索装置 4拉索的形式组成支腿主体, 主支腿 1通过主销轴 104设置在起重机本体上, 活动支腿 3通过第一伸缩油缸 2在主支腿 1
的筒体中进行伸缩。 伸出活动支腿 3时, 首先拔出销轴 108, 伸出第一伸缩油缸 2, 使 活动支腿 3滑动至预定位置, 然后将销轴 108插入主支腿 1上的销轴孔以及与其相应 位置处的活动支腿 3上的另一销轴孔中, 控制第二伸缩油缸 5伸出, 使支脚板 6支撑 在地面上并将起重机撑起, 最后调整拉索装置 4的拉索 400的长度, 将挂钩 402挂在 第一销轴 105上, 使其适应当前工作位置处的拉索式支腿结构长度。 缩回活动支腿 3 的动作与之相反, 即先取挂钩 402, 缩回第二伸缩油缸 5, 再拔出销轴 108, 缩回第一 伸缩油缸 2, 最后插入销轴 108进行锁定。 在伸缩过程中, 由于第一伸缩油缸 2的缸体由活动支腿 3的支撑滑轮 301支撑, 因此提高了第一伸缩油缸 2的刚度, 降低了第一伸缩油缸 2的工作过程中的窜动, 提 高了其工作稳定性能。 支撑滑轮 301有效降低了第一伸缩油缸 2在工作过程中与活动 支腿 3之间的摩擦力, 减少了能量耗费; 主支腿 1的第一上盖板 100的内壁上的多个 导向块 109, 以及第一下底板 101前端的两个导向轮 106导向, 导向轮 106能够将活 动支腿 3的滑动摩擦转变为滚动摩擦, 大大减小了主支腿 1与活动支腿 3之间的摩擦 力, 提高了工作效率, 降低了克服主支腿 1与活动支腿 3之间的摩擦力所需要的作用 力。 调整拉索装置 4时, 通过调节螺栓 403对拉索装置 4进行微调, 使拉索装置 4能 够较好地控制拉索式支腿结构的挠度, 保证拉索式支腿结构具有较好的工作性能。 如图 1至图 9所示, 根据本发明的第二实施例, 主支腿 1的主支撑部固定设置在 车架 7上, 在车架 7的下端设置有凸耳, 拉索装置的一端设置在该凸耳上, 另一端连 接在活动支腿 3的活动支腿支撑端的上部位置。 优选地, 凸耳在车架 7的底部位置可 以移动, 并在到达合适位置后通过止动螺栓等加以固定, 以便对拉索装置 4的拉紧作 用进行调节, 使其适合使用的需要。 在车架 7下端的设置拉索装置 4的结构也可以为 拉环, 拉索装置 4铰接在该拉环上。该结构也可以为其它的连接形式, 如螺栓连接等。 拉索装置 4也可以分别设置在主支腿 1的基座的上部和活动支腿 3的活动支腿支 撑端的下部, 或者车架 7的上部和活动支腿 3的活动支腿支撑端的下部, 这里并不局 限于本实施例中所描述的形式, 可以根据实际情况和机械设计要求进行选定, 这些结 构形式均应包含在本发明的保护范围之内。 在拉索式支腿结构的工作过程中, 通过主支腿 1头部的上承载块 107和活动支腿 3的第二上盖板 302、主支腿 1上的下承载板 110和活动支腿 3的尾部两侧板上的间隙 配合块 300传递载荷, 上承载块 107承受向上载荷, 下承载块 110承载向下载荷。 拉 索装置 4通过拉索 400直接连接到主支腿 1的基座处, 并传递部分载荷, 其水平载荷
通过主支腿 1与活动支腿 3的套接处的销轴 108承受, 垂直方向的载荷可以用来控制 支腿的挠度。 活动支腿 3的第二上盖板 302受压, 设置在活动支腿 3的两侧板上的间 隙配合块 300与主支腿 1上的下承载块 110配合, 并承受向上载荷。 根据本发明的起重机, 包括了上述的拉索式支腿结构。 从以上的描述中, 可以看出, 本发明上述的实施例实现了如下技术效果: 拉索式 支腿结构包括主支腿和活动支腿, 主支腿和活动支腿之间为套接, 在主支腿和活动支 腿之间设置有拉索装置, 拉索装置将支腿挠度控制在一定范围内, 解决了大吨位全地 面起重机大跨距支腿整体弯曲变形大的问题, 同时避免了支腿上翘量过大而与其它部 件干涉的问题。 主支腿和活动支腿的上盖板与侧板之间具有消除应力集中的过渡连接 结构, 这种结构可以是圆弧过渡连接。 这种连接结构能够消除上盖板与两侧板是直角 过渡, 在转角处存在应力集中, 支腿整体结构应力分布不均匀的问题, 提高支腿结构 的支撑性能。 因为是对支腿结构本身所做出的改善, 因此, 无需增加新的组件, 有效 降低了成本, 减少了加工难度, 提高了材料利用率, 也避免了支腿结构重量的增加。 主支腿与活动支腿上承载块采用全包式多滑块结构, 增大了有效承载面积, 使传统的 剪切应力变为压应力, 且具有侧向导向和承受回转平面载荷的作用。 此外, 此结构形 式支腿截面较矩形截面小, 减小了支腿占用空间, 减轻了支腿重量。 以上所述仅为本发明的优选实施例而已, 并不用于限制本发明, 对于本领域的技 术人员来说, 本发明可以有各种更改和变化。 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。
Claims
1. 一种拉索式支腿结构, 包括:
主支腿 (1 ), 包括主支撑端和主支腿配合端, 所述主支撑端为与车架的连 接端, 包括有连接在所述车架上的主支撑部;
活动支腿 (3 ), 包括活动支腿支撑端和活动支腿配合端, 所述活动支腿支 撑端为所述活动支腿(3 )的外伸端, 从该外伸端向下延伸形成支撑部, 所述活 动支腿配合端与所述主支腿配合端之间可滑动地套接;
其特征在于, 还包括:
拉索装置(4),对角设置在所述主支腿(1 )的主支撑端和所述活动支腿(3 ) 的活动支腿支撑端。
2. 根据权利要求 1所述的拉索式支腿结构, 其特征在于, 所述主支腿(1 )的所述 主支撑部固定连接在所述车架上, 在所述车架的下端设置有凸耳, 所述拉索装 置 (4) 的一端设置在所述凸耳上, 一端连接在所述活动支腿 (3 ) 的活动支腿 支撑端的上部。
3. 根据权利要求 1所述的拉索式支腿结构, 其特征在于, 所述主支腿(1 )的所述 主支撑部包括有基座, 所述基座从所述主支腿(1 )的主支撑端向下延伸, 并可 转动地设置在所述车架上。
4. 根据权利要求 3所述的拉索式支腿结构,其特征在于,所述拉索装置(4)包括:
第一连接件, 设置在所述主支腿 (1 ) 的基座的下部;
第二连接件, 设置在所述活动支腿 (3 ) 的活动支腿支撑端的上部; 拉索(400), 一端连接至所述第一连接件, 另一端连接至所述第二连接件。
5. 根据权利要求 4所述的拉索式支腿结构, 其特征在于, 所述第一连接件为第一 销轴(105 ), 穿设在所述主支腿(1 ) 的基座的下部, 所述第二连接件为第二销 轴 (401 ), 穿设在所述活动支腿 (3 ) 的活动支腿支撑端的上部。
6. 根据权利要求 5所述的拉索式支腿结构,其特征在于,所述拉索(400)有两根, 分别连接两侧的所述第一销轴 (105 ) 与所述第二销轴 (401 )。
7. 根据权利要求 5或 6所述的拉索式支腿结构, 其特征在于, 所述拉索装置 (4) 还包括连接在所述拉索(400)—端的挂钩(402), 以及连接在所述拉索(400) 另一端的调节螺栓 (403), 所述挂钩 (402) 挂设在所述第一销轴 (105) 上, 所述调节螺栓 (403) 设置在所述第二销轴 (401) 的螺栓孔上。
8. 根据权利要求 7所述的拉索式支腿结构, 其特征在于, 在所述主支腿 (1) 和 / 或所述活动支腿 (3) 上还设置有张力调节轮, 所述拉索 (400) 绕经所述张力 调节轮。
9. 根据权利要求 1至 3中任一项所述的拉索式支腿结构, 其特征在于,
所述主支腿 (1) 包括形成筒体的第一上盖板 (100)、 第一右侧板 (102)、 第一下底板 (101) 和第一左侧板 (103);
所述活动支腿(3)包括形成筒体的第二上盖板(302)、第二右侧板(304)、 第二下底板 (305) 和第二左侧板 (303);
所述第一上盖板 (100) 与所述第一右侧板 (102) 之间、 所述第一上盖板 (100) 与所述第一左侧板 (103) 之间均设置有消除应力集中的第一过渡连接 结构;
所述第二上盖板 (302) 与所述第二右侧板 (304) 之间、 所述第二上盖板 (302) 与所述第二左侧板 (303) 之间均设置有消除应力集中的第二过渡连接 结构。
10. 根据权利要求 9所述的拉索式支腿结构, 其特征在于, 所述第一过渡连接结构 和第二过渡连接结构为圆弧过渡连接结构。
11. 根据权利要求 10所述的拉索式支腿结构, 其特征在于, 所述主支腿 (1) 套接 在所述活动支腿(3)夕卜, 在所述主支腿(1)与所述活动支腿(3)之间沿所述 活动支腿 (3) 的滑动方向设置有第一伸缩油缸 (2), 所述第一伸缩油缸 (2) 的缸体固定连接在所述主支腿 (1) 上, 活塞杆固定连接在所述活动支腿 (3) 上。
12. 根据权利要求 1至 3中任一项所述的拉索式支腿结构, 其特征在于, 在所述主 支腿 (1) 与所述活动支腿 (3) 的配合端设置有连接销轴 (108), 在所述活动 支腿 (3) 上沿滑动方向设置有多个放置所述连接销轴 (108) 的可选择的销轴 孔。
13. 根据权利要求 9所述的拉索式支腿结构, 其特征在于, 还包括: 上承载块 (107), 设置在所述第一上盖板 (100) 的接口处的内壁上; 下承载块(110), 设置在所述第一下底板(101 ) 的内壁上, 数量至少为一 个.
导向块(109), 设置在所述第一上盖板(100)的内壁上,数量至少为一个; 导向轮 (106), 设置在所述第一下底板 (101 ) 的接口处的内壁上; 所述上承载块 (107)、 所述下承载块 (110) 和所述导向块 (109) 的形状 与所述活动支腿 (3 ) 的外筒筒壁形状相适应。
14. 一种起重机,其特征在于,包括权利要求 1至 13中任一项所述的拉索式支腿结 构。
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| CN2011101297717A CN102275818A (zh) | 2011-05-18 | 2011-05-18 | 拉索式支腿结构及包含该拉索式支腿结构的起重机 |
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| CN102605957A (zh) * | 2012-03-09 | 2012-07-25 | 三一重工股份有限公司 | 预紧力加强臂架、支腿和泵车 |
| CN104310247B (zh) * | 2014-09-22 | 2016-06-08 | 中联重科股份有限公司 | 支腿支撑结构及汽车起重机 |
| CN105236274A (zh) * | 2015-10-19 | 2016-01-13 | 常州市武进亚太机电配件有限公司 | 加撑型吊装设备 |
| CN115782831A (zh) * | 2022-11-29 | 2023-03-14 | 徐州徐工基础工程机械有限公司 | 一种共腔支腿结构及掘进钻车 |
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| JP2000143166A (ja) * | 1998-11-13 | 2000-05-23 | Yutani Heavy Ind Ltd | 作業車の筒状部材の伸縮装置 |
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| DE10143716B4 (de) * | 2001-08-30 | 2004-04-15 | Terex-Demag Gmbh & Co. Kg | Mobiles Arbeitsgerät mit Stützträgern und Verfahren zum Betrieb dieses Arbeitsgeräts |
| JP2007302442A (ja) * | 2006-05-12 | 2007-11-22 | Kobelco Cranes Co Ltd | アウトリガ装置 |
| CN201220896Y (zh) * | 2008-03-11 | 2009-04-15 | 徐州徐工随车起重机有限公司 | 双级伸缩内置油管支腿 |
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| JPH01218946A (ja) * | 1988-02-29 | 1989-09-01 | Aichi Sharyo Kk | アウトリガ装置 |
| JP2000143166A (ja) * | 1998-11-13 | 2000-05-23 | Yutani Heavy Ind Ltd | 作業車の筒状部材の伸縮装置 |
| US20020070188A1 (en) * | 2000-11-14 | 2002-06-13 | Martin Bauer | Outrigger assembly for support of mobile cranes, excavators and the like on the ground |
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