WO2013013413A1 - Method and structure for inter-section positioning of crane boom, crane boom and crane - Google Patents
Method and structure for inter-section positioning of crane boom, crane boom and crane Download PDFInfo
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- WO2013013413A1 WO2013013413A1 PCT/CN2011/077754 CN2011077754W WO2013013413A1 WO 2013013413 A1 WO2013013413 A1 WO 2013013413A1 CN 2011077754 W CN2011077754 W CN 2011077754W WO 2013013413 A1 WO2013013413 A1 WO 2013013413A1
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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
- B66C23/64—Jibs
- B66C23/70—Jibs constructed of sections adapted to be assembled to form jibs or various lengths
- B66C23/701—Jibs constructed of sections adapted to be assembled to form jibs or various lengths telescopic
- B66C23/707—Jibs constructed of sections adapted to be assembled to form jibs or various lengths telescopic guiding devices for telescopic jibs
Definitions
- the present invention relates to the field of cranes, and more particularly to an arm-to-arm positioning method and structure for a crane boom, a crane boom and a crane.
- BACKGROUND OF THE INVENTION Existing crane booms are mostly multi-section arms, and each arm is set in turn, in order to ensure that each arm can coincide with the center line of the arm disposed on the outer layer of the arm, and does not overlap with the outer arm.
- the arms of the layer are offset, and a slider is often provided on the outer surface of the inner arm. As shown in Fig. 1, the slider 3 is mounted on the inner section arm 2.
- the inner section arm 2 moves back and forth in the outer section arm 1, and the slider 3 is kept in contact with the inner surface of the outer section arm 1 to ensure the inner section.
- the arm 2 coincides with the center line of the outer joint arm 1 to prevent the inner joint arm 2 from being bent out from the outer joint arm 1 and bent to a certain side, thereby affecting the overall working performance of the boom.
- the manufacturing precision of the outer joint arm 1 and the inner joint arm 2 is very high, and the lateral width of the outer joint arm 1 and the inner joint arm 2 needs to be secured.
- the present invention is directed to an arm positioning method and structure, a crane boom and a crane for a crane boom with low manufacturing cost and reliable positioning.
- a method for positioning an arm of a crane boom comprising the steps of: determining a plurality of working positions of the inner joint arm on the outer joint arm; measuring the inner joint arm at the outer joint arm The inner width of the upper plurality of working positions and the symmetry about the center line of the outer joint arm; and determining the thickness and shape of the positioning member according to the inner width and the symmetry of the arm.
- an inter-arm positioning structure for a crane boom comprising: an outer joint arm; an inner joint arm disposed in an arm barrel of the outer joint arm, and an outer surface of the tail portion of the inner joint arm is disposed
- the slider is provided on the inner surface of the outer joint arm along the longitudinal direction of the arm barrel with a plurality of positioning members respectively respectively engaged with the slider.
- the plurality of positioning members are a plurality of stickers.
- the setting positions of the plurality of boards correspond to the plurality of working positions of the inner section arms, respectively.
- a plurality of slabs are welded or screwed onto the inner surface of the outer joint arm. Further, each of the plurality of patches is in surface contact with the slider.
- the contact area of the plurality of stickers is larger than the contact area of the slider.
- An inter-arm positioning method for a crane boom by determining a plurality of working positions of the inner joint arm on the outer joint arm, and measuring an inner width of the inner joint arm at a plurality of working positions of the outer joint arm and about the outer joint arm The symmetry of the center line, and finally determine the thickness and shape of the positioning member mounted on the inner surface of the outer joint arm according to the measured inner width and symmetry of the arm, so that it is not necessary to ensure the consistency of the width dimension of the entire length of the arm barrel and Straightness, only need to ensure the width and symmetry of the specific working position, eliminating the reciprocal correction of the inner and outer joint arms, effectively reducing production costs and improving production efficiency.
- FIG. 1 is an inter-arm positioning structure in the prior art
- FIG. 2 is an inter-arm positioning structure according to the present invention
- FIG. 3 is an enlarged view of FIG. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS
- a method for positioning an arm of a crane boom comprising the steps of: determining a plurality of working positions of the inner joint arm on the outer joint arm; and measuring a plurality of inner joint arms on the outer joint arm The inner width of the arm at the working position and the symmetry of the inner joint arm with respect to the center line of the outer joint arm; and the thickness and shape of the positioning member mounted on the inner surface of the outer joint arm are determined based on the measured inner width and symmetry of the arm.
- An inter-arm positioning method for a crane boom by determining a plurality of working positions of the inner joint arm on the outer joint arm, and measuring an inner width of the inner joint arm at a plurality of working positions of the outer joint arm and The symmetry of the center line of the arm is finally determined according to the measured inner width and symmetry of the arm, and the thickness and shape of the positioning member mounted on the inner surface of the outer arm are determined, so that it is not necessary to ensure the uniform width dimension of the entire length of the arm. Sex and straightness, only need to ensure the width and symmetry of the specific working position, eliminating the reciprocal correction of the inner and outer joint arms, effectively reducing production costs and improving production efficiency.
- an inter-arm positioning structure of a crane boom is provided.
- the utility model provides: an outer joint arm 10; an inner joint arm 30 disposed in the arm cylinder of the outer joint arm 10, The outer surface of the tail portion of the inner joint arm 30 is provided with a slider 50.
- a plurality of positioning members respectively respectively engaged with the slider 50 are disposed along the longitudinal direction of the arm cylinder, and such an arrangement ensures that A reliable fit between the inner and outer arms at a particular working position.
- the plurality of positioning members can adopt a plurality of fixing plates 70, and the setting positions of the plurality of fixing plates 70 need to be determined according to the working position of the inner joint arms 30.
- the inner joint arms 30 need to protrude outside.
- the inner joint arm 30 will stop sliding when the inner joint arm 30 reaches the predetermined working position, and the slider 50 disposed on the outer surface of the tail portion of the inner joint arm 30 stays with respect to the outer joint arm 10 A relatively fixed position, in order to ensure that the inner joint arm 30 does not tilt after extending the outer joint arm 10, it is necessary to provide a plate 70 on the inner surface of the outer joint arm 10 that cooperates with the slider 50.
- the inner section The arm 30 has a plurality of working positions, and it is necessary to set the plate 70 in each of the working positions as described above.
- the patch 70 can be welded or screwed onto the inner surface of the outer joint arm 10, and as a reliable embodiment, the patch 70 should be in surface contact with the slider 50, which requires the contact surface of the patch 70.
- the shape is adapted to the shape of the contact surface of the slider 50.
- the plate 70 may be square or wedge-shaped, and the thickness of the plate 70 also needs to be adjusted accordingly depending on the position of the work.
- the contact area of the patch 70 is set to be larger than The contact area of the slider 50 ensures that the slider 50 can be in sufficient ground contact with the patch 70.
- a crane boom having an inter-arm positioning structure of the above-described crane boom is provided.
- a crane having the above-described crane boom is provided. From the above description, it can be seen that the above-described embodiments of the present invention achieve the following technical effects:
- the inner surface of the outer joint arm 10 is along the arm cylinder thereof.
- a plurality of positioning members respectively matched with the slider 50 are disposed in the longitudinal direction, so that it is not necessary to ensure the uniformity and straightness of the width dimension in the entire length of the arm cylinder, and only the width dimension and the symmetry of the specific working position are required, and more
- the size of the positioning members can be set correspondingly according to the specific working position, eliminating the reciprocal correction of the inner and outer joint arms, effectively reducing the production cost and improving the production efficiency.
- the bonding plate 70 is used as the positioning member, and the contact area of the bonding plate 70 is set to be larger than the contact area of the sliding block 50, so that the inner joint arm 30 is extended to the outer joint arm 10 after being extended.
- a crane boom having an inter-arm positioning structure of the above-described crane boom which reduces the production cost and improves the production efficiency while ensuring the work. Stability, while cranes with this boom have a more reliable and safe working condition.
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Abstract
Disclosed is a method and structure for inter-section positioning of a crane boom, a crane boom and a crane. The method for inter-section positioning of a crane boom comprises: determining a plurality of working positions of an inner boom section (30) in an outer boom section (10); measuring in-boom width values of the inner boom section (30) at each of the plurality of working positions in the outer boom section (10) and the symmetry thereof with respect to the central line of the outer boom section; and determining the thickness and shape of each positioning piece according to the in-boom width values and the symmetry. The structure for the inter-section positioning of the crane boom comprises an outer boom section (10), and an inner boom section (30) provided in the boom sleeve of the outer boom section (10), with the tail portion of the inner boom section (30) being provided on the outer surfaces thereof with sliding blocks (50), and the inner surfaces of the outer boom section (10) being provided along the longitudinal direction of the boom sleeve thereof with positioning pieces which cooperate individually and respectively with the sliding blocks (50). A crane boom utilizing the abovementioned method and structure for the inter-section positioning of the crane boom has reduced production costs and improved production efficiency, and at the same time it also ensures the working stability thereof, so that a crane having a crane boom of this type can achieve a more reliable and safer working state.
Description
起重机吊臂的臂间定位方法和结构、 起重机吊臂和起重机 技术领域 本发明涉及起重机领域， 具体而言，涉及一种起重机吊臂的臂间定位方法和结构、 起重机吊臂和起重机。 背景技术 现有的起重机吊臂多为多节臂， 各节臂依次套装， 为了保证每一节臂能与套在其 外层的臂做到中心线重合、 伸出后不与套在其外层的臂发生偏离， 常常采用在内节臂 的外表面上设置滑块。 如图 1所示， 滑块 3安装在内节臂 2上， 工作过程中内节臂 2 在外节臂 1内前后移动， 滑块 3与外节臂 1的内表面始终保持接触以保证内节臂 2与 外节臂 1中心线重合， 防止内节臂 2从外节臂 1伸出后往某一边弯， 从而影响起重臂 整体的工作性能。 但是， 如果按照上述方式实现内节臂 2与外节臂 1的定位， 则对外节臂 1和内节 臂 2的制造精度要求非常高， 需要保证外节臂 1和内节臂 2的横向宽度在臂筒长度方 向上的一致性， 否则内节臂 2从外节臂 1中完全伸出后就会出现往某一边弯的情况， 在实际的生产过程中要达到这一要求则需要用特定的工艺方法多次往复地对外节臂 1 和内节臂 2进行校正， 这样一来将会显著提高制造成本， 同时还会降低生产效率。 发明内容 本发明旨在提供一种制造成本低、定位可靠的起重机吊臂的臂间定位方法和结构、 起重机吊臂和起重机。 为了实现上述目的， 根据本发明的一个方面， 提供了一种起重机吊臂的臂间定位 方法， 包括以下步骤： 确定内节臂在外节臂上的多个工作位置； 测量内节臂在外节臂 上的多个工作位置的臂内宽及关于外节臂中心线的对称度； 以及根据所述臂内宽和对 称度， 确定定位件的厚度及形状。 根据本发明的另一方面， 提供了一种起重机吊臂的臂间定位结构， 包括： 外节臂； 内节臂， 设置在外节臂的臂筒内， 内节臂尾部的外表面上设置有滑块， 在外节臂的内 表面上沿其臂筒长度方向设置有分别单独与滑块配合的多个定位件。 进一步地， 多个定位件为多个贴板。
进—步地， 多个贴板的设置位置与内节臂的多个工作位置分别相对应。 进—步地， 多个贴板焊接或者螺接在外节臂的内表面上。 进—步地， 多个贴板中的每一个分别与滑块面接触。 进—步地， 多个贴板的接触面积大于滑块的接触面积。 根据本发明的又一方面， 提供了一种起重机吊臂， 具有上述的起重机吊臂的臂间 定位结构。 根据本发明的又一方面， 提供了一种起重机， 具有上述的起重机吊臂。 根据本发明的起重机吊臂的臂间定位方法， 通过确定内节臂在外节臂上的多个工 作位置， 并测量内节臂在外节臂的多个工作位置的臂内宽及关于外节臂中心线的对称 度， 最后根据测量到的臂内宽和对称度再确定安装在外节臂内表上的定位件的厚度和 形状， 这样就不必保证臂筒整长范围内宽度尺寸的一致性及直线度， 只需保证特定工 作位置的宽度尺寸及对称度即可， 免除了对内、 外节臂的往复校正， 有效降低了生产 成本， 提高了生产效率。 本发明的起重机吊臂的臂间定位结构在外节臂的内表面上沿其臂筒长度方向设置 有分别单独与滑块配合的多个定位件， 保证了在特定工作位置上内节臂与外节臂的可 靠配合。 采用上述起重机吊臂的臂间定位结构的起重机吊臂在降低了生产成本、 提高 了生产效率的同时还确保了工作的稳定性， 具有这种起重机吊臂的起重机能够获得更 加可靠和安全的工作状态。 附图说明 构成本申请的一部分的说明书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为现有技术中的臂间定位结构； 图 2为本发明的臂间定位结构； 以及 图 3为图 2中 I处放大图。
具体实施方式 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。 下面将参考附图并结合实施例来详细说明本发明。 根据本发明的一个实施例， 提供了一种起重机吊臂的臂间定位方法， 包括下列步 骤： 确定内节臂在外节臂上的多个工作位置； 测量内节臂在外节臂上的多个工作位置 的臂内宽及内节臂关于外节臂中心线的对称度； 以及根据测量得到的臂内宽和对称度 确定安装在外节臂内表面上的定位件的厚度及形状。 根据本发明实施例的起重机吊臂的臂间定位方法， 通过确定内节臂在外节臂上的 多个工作位置， 并测量内节臂在外节臂的多个工作位置的臂内宽及关于外节臂中心线 的对称度， 最后根据测量得到的臂内宽和对称度再确定安装在外节臂内表上的定位件 的厚度和形状， 这样就不必保证臂筒整长范围内宽度尺寸的一致性及直线度， 只需保 证特定工作位置的宽度尺寸及对称度即可， 免除了对内、 外节臂的往复校正， 有效降 低了生产成本， 提高了生产效率。 根据本发明的另一个实施例， 提供了一种起重机吊臂的臂间定位结构， 如图 2所 示， 包括： 外节臂 10; 内节臂 30， 设置在外节臂 10的臂筒内， 内节臂 30尾部的外表 面上设置有滑块 50， 在外节臂 10的内表面上沿其臂筒长度方向设置有分别单独与滑 块 50配合的多个定位件，这样的设置保证了在特定工作位置上内节臂与外节臂的可靠 配合。 优选地， 多个定位件可以采用多个贴板 70， 多个贴板 70的设置位置需要根据内 节臂 30的工作位置而定， 具体举例来说， 假设内节臂 30需要伸出到外节臂 10以外 8 米的位置， 当内节臂 30达到预定的工作位置后内节臂 30将停止滑动， 设置在内节臂 30尾部外表面上的滑块 50相对于外节臂 10停留在一个比较固定的位置， 为了保证内 节臂 30伸出外节臂 10后不发生倾斜， 就需要在外节臂 10内表面上设置一个与滑块 50相配合的贴板 70， 同理， 如果内节臂 30有多个工作位置， 则需要在每一个工作位 置都按照上述方式设置贴板 70。 优选地， 贴板 70可以焊接或者螺接在外节臂 10的内 表面上， 而作为一种可靠的实施方式， 贴板 70应与滑块 50保持面接触， 这就要求贴 板 70的接触面的形状与滑块 50的接触面的形状相适配，例如贴板 70可以采用方形或 者楔形， 并且根据不同工作位置的情况贴板 70的厚度也需要相应地调整。此外， 由于 内节臂 30每次达到工作位置后滑块 50相对于外节臂 10停留的位置可能会存在一定的 误差， 为了保证稳固可靠的定位效果， 将贴板 70的接触面积设置为大于滑块 50的接 触面积， 以确保滑块 50能够与贴板 70充分地面接触。
根据本发明的又一个实施例， 提供了一种具有上述起重机吊臂的臂间定位结构的 起重机吊臂。 根据本发明的又一个实施例， 提供了一种具有上述起重机吊臂的起重机。 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： 在本发明实施例的起重机吊臂的臂间定位结构中，在外节臂 10的内表面上沿其臂 筒长度方向设置有单独与滑块 50配合的多个定位件，这样就不必保证臂筒整长范围内 宽度尺寸的一致性及直线度， 只需保证特定工作位置的宽度尺寸及对称度， 而且多个 定位件的尺寸可以根据特定工作位置的情况相应地设置， 免除了对内、 外节臂的往复 校正， 有效降低了生产成本， 提高了生产效率。 并且， 在本发明的实施例中， 采用贴板 70作为定位件， 将贴板 70的接触面积设 置为大于滑块 50的接触面积，保证了内节臂 30在伸出后于外节臂 10之间的可靠定位， 避免了内节臂 30发生倾斜的情况。 此外， 在本发明的实施例中， 还提供了一种具有上述起重机吊臂的臂间定位结构 的起重机吊臂， 该吊臂在降低了生产成本、 提高了生产效率的同时还确保了工作的稳 定性， 而具有该吊臂的起重机则具有更加可靠和安全的工作状态。 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。
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to the field of cranes, and more particularly to an arm-to-arm positioning method and structure for a crane boom, a crane boom and a crane. BACKGROUND OF THE INVENTION Existing crane booms are mostly multi-section arms, and each arm is set in turn, in order to ensure that each arm can coincide with the center line of the arm disposed on the outer layer of the arm, and does not overlap with the outer arm. The arms of the layer are offset, and a slider is often provided on the outer surface of the inner arm. As shown in Fig. 1, the slider 3 is mounted on the inner section arm 2. During operation, the inner section arm 2 moves back and forth in the outer section arm 1, and the slider 3 is kept in contact with the inner surface of the outer section arm 1 to ensure the inner section. The arm 2 coincides with the center line of the outer joint arm 1 to prevent the inner joint arm 2 from being bent out from the outer joint arm 1 and bent to a certain side, thereby affecting the overall working performance of the boom. However, if the positioning of the inner joint arm 2 and the outer joint arm 1 is achieved in the above manner, the manufacturing precision of the outer joint arm 1 and the inner joint arm 2 is very high, and the lateral width of the outer joint arm 1 and the inner joint arm 2 needs to be secured. Consistency in the length direction of the arm barrel, otherwise the inner joint arm 2 will be bent out from the outer joint arm 1 and then bend to one side. In the actual production process, it is necessary to use a specific The process rectifies the outer section arm 1 and the inner section arm 2 a plurality of times, which will significantly increase the manufacturing cost and reduce the production efficiency. SUMMARY OF THE INVENTION The present invention is directed to an arm positioning method and structure, a crane boom and a crane for a crane boom with low manufacturing cost and reliable positioning. In order to achieve the above object, according to an aspect of the present invention, a method for positioning an arm of a crane boom is provided, comprising the steps of: determining a plurality of working positions of the inner joint arm on the outer joint arm; measuring the inner joint arm at the outer joint arm The inner width of the upper plurality of working positions and the symmetry about the center line of the outer joint arm; and determining the thickness and shape of the positioning member according to the inner width and the symmetry of the arm. According to another aspect of the present invention, an inter-arm positioning structure for a crane boom is provided, comprising: an outer joint arm; an inner joint arm disposed in an arm barrel of the outer joint arm, and an outer surface of the tail portion of the inner joint arm is disposed The slider is provided on the inner surface of the outer joint arm along the longitudinal direction of the arm barrel with a plurality of positioning members respectively respectively engaged with the slider. Further, the plurality of positioning members are a plurality of stickers. Further, the setting positions of the plurality of boards correspond to the plurality of working positions of the inner section arms, respectively. Further, a plurality of slabs are welded or screwed onto the inner surface of the outer joint arm. Further, each of the plurality of patches is in surface contact with the slider. Further, the contact area of the plurality of stickers is larger than the contact area of the slider. According to still another aspect of the present invention, there is provided a crane boom having an inter-arm positioning structure of the crane boom described above. According to still another aspect of the present invention, there is provided a crane having the above-described crane boom. An inter-arm positioning method for a crane boom according to the present invention, by determining a plurality of working positions of the inner joint arm on the outer joint arm, and measuring an inner width of the inner joint arm at a plurality of working positions of the outer joint arm and about the outer joint arm The symmetry of the center line, and finally determine the thickness and shape of the positioning member mounted on the inner surface of the outer joint arm according to the measured inner width and symmetry of the arm, so that it is not necessary to ensure the consistency of the width dimension of the entire length of the arm barrel and Straightness, only need to ensure the width and symmetry of the specific working position, eliminating the reciprocal correction of the inner and outer joint arms, effectively reducing production costs and improving production efficiency. The inter-arm positioning structure of the crane boom of the present invention is provided on the inner surface of the outer joint arm along the longitudinal direction of the arm cylinder with a plurality of positioning members respectively respectively matched with the slider, which ensures the inner joint arm and the outer part at a specific working position. A reliable fit for the arm. The crane boom using the inter-arm positioning structure of the above-mentioned crane boom reduces the production cost and improves the production efficiency while ensuring the stability of work. The crane with the crane boom can obtain more reliable and safe work. status. BRIEF DESCRIPTION OF THE DRAWINGS The accompanying drawings, which are incorporated in FIG. In the drawings: FIG. 1 is an inter-arm positioning structure in the prior art; FIG. 2 is an inter-arm positioning structure according to the present invention; and FIG. 3 is an enlarged view of FIG. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS It should be noted that the embodiments in the present application and the features in the embodiments may be combined with each other without conflict. The invention will be described in detail below with reference to the drawings in conjunction with the embodiments. According to an embodiment of the present invention, a method for positioning an arm of a crane boom is provided, comprising the steps of: determining a plurality of working positions of the inner joint arm on the outer joint arm; and measuring a plurality of inner joint arms on the outer joint arm The inner width of the arm at the working position and the symmetry of the inner joint arm with respect to the center line of the outer joint arm; and the thickness and shape of the positioning member mounted on the inner surface of the outer joint arm are determined based on the measured inner width and symmetry of the arm. An inter-arm positioning method for a crane boom according to an embodiment of the present invention, by determining a plurality of working positions of the inner joint arm on the outer joint arm, and measuring an inner width of the inner joint arm at a plurality of working positions of the outer joint arm and The symmetry of the center line of the arm is finally determined according to the measured inner width and symmetry of the arm, and the thickness and shape of the positioning member mounted on the inner surface of the outer arm are determined, so that it is not necessary to ensure the uniform width dimension of the entire length of the arm. Sex and straightness, only need to ensure the width and symmetry of the specific working position, eliminating the reciprocal correction of the inner and outer joint arms, effectively reducing production costs and improving production efficiency. According to another embodiment of the present invention, an inter-arm positioning structure of a crane boom is provided. As shown in FIG. 2, the utility model provides: an outer joint arm 10; an inner joint arm 30 disposed in the arm cylinder of the outer joint arm 10, The outer surface of the tail portion of the inner joint arm 30 is provided with a slider 50. On the inner surface of the outer joint arm 10, a plurality of positioning members respectively respectively engaged with the slider 50 are disposed along the longitudinal direction of the arm cylinder, and such an arrangement ensures that A reliable fit between the inner and outer arms at a particular working position. Preferably, the plurality of positioning members can adopt a plurality of fixing plates 70, and the setting positions of the plurality of fixing plates 70 need to be determined according to the working position of the inner joint arms 30. For example, it is assumed that the inner joint arms 30 need to protrude outside. At a position 8 meters away from the boom arm 10, the inner joint arm 30 will stop sliding when the inner joint arm 30 reaches the predetermined working position, and the slider 50 disposed on the outer surface of the tail portion of the inner joint arm 30 stays with respect to the outer joint arm 10 A relatively fixed position, in order to ensure that the inner joint arm 30 does not tilt after extending the outer joint arm 10, it is necessary to provide a plate 70 on the inner surface of the outer joint arm 10 that cooperates with the slider 50. Similarly, if the inner section The arm 30 has a plurality of working positions, and it is necessary to set the plate 70 in each of the working positions as described above. Preferably, the patch 70 can be welded or screwed onto the inner surface of the outer joint arm 10, and as a reliable embodiment, the patch 70 should be in surface contact with the slider 50, which requires the contact surface of the patch 70. The shape is adapted to the shape of the contact surface of the slider 50. For example, the plate 70 may be square or wedge-shaped, and the thickness of the plate 70 also needs to be adjusted accordingly depending on the position of the work. In addition, there may be a certain error in the position where the slider 50 stays relative to the outer joint arm 10 after the inner joint arm 30 reaches the working position. In order to ensure a stable and reliable positioning effect, the contact area of the patch 70 is set to be larger than The contact area of the slider 50 ensures that the slider 50 can be in sufficient ground contact with the patch 70. According to still another embodiment of the present invention, a crane boom having an inter-arm positioning structure of the above-described crane boom is provided. According to still another embodiment of the present invention, a crane having the above-described crane boom is provided. From the above description, it can be seen that the above-described embodiments of the present invention achieve the following technical effects: In the inter-arm positioning structure of the crane boom of the embodiment of the present invention, the inner surface of the outer joint arm 10 is along the arm cylinder thereof. A plurality of positioning members respectively matched with the slider 50 are disposed in the longitudinal direction, so that it is not necessary to ensure the uniformity and straightness of the width dimension in the entire length of the arm cylinder, and only the width dimension and the symmetry of the specific working position are required, and more The size of the positioning members can be set correspondingly according to the specific working position, eliminating the reciprocal correction of the inner and outer joint arms, effectively reducing the production cost and improving the production efficiency. Moreover, in the embodiment of the present invention, the bonding plate 70 is used as the positioning member, and the contact area of the bonding plate 70 is set to be larger than the contact area of the sliding block 50, so that the inner joint arm 30 is extended to the outer joint arm 10 after being extended. The reliable positioning between the two prevents the inner joint arm 30 from tilting. Further, in the embodiment of the present invention, there is also provided a crane boom having an inter-arm positioning structure of the above-described crane boom, which reduces the production cost and improves the production efficiency while ensuring the work. Stability, while cranes with this boom have a more reliable and safe working condition. The above is only the preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes can be made to the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and scope of the present invention are intended to be included within the scope of the present invention.
Claims
1. 一种起重机吊臂的臂间定位方法， 其特征在于， 包括以下步骤： A method for positioning an arm of a crane boom, comprising the steps of:
确定内节臂在外节臂上的多个工作位置； Determining a plurality of working positions of the inner joint arm on the outer joint arm;
测量所述内节臂在所述外节臂上的多个工作位置的臂内宽及所述内节臂关 于所述外节臂中心线的对称度； 以及 Measuring an inner width of the inner arm of the plurality of working positions on the outer joint arm and a symmetry of the inner joint arm with respect to a center line of the outer joint arm;
根据所述臂内宽和对称度确定安装在所述外节臂内表面上的定位件的厚度 及形状。 The thickness and shape of the positioning member mounted on the inner surface of the outer joint arm are determined in accordance with the inner width and the degree of symmetry of the arm.
2. 一种起重机吊臂的臂间定位结构， 包括： 2. An arm-to-arm positioning structure for a crane boom, comprising:
外节臂 （10); Outer joint arm (10);
内节臂 （30)， 设置在所述外节臂 （10) 的臂筒内， 所述内节臂 （30)尾部 的外表面上设置有滑块 （50)， An inner joint arm (30) is disposed in the arm cylinder of the outer joint arm (10), and a slider (50) is disposed on an outer surface of the tail portion of the inner joint arm (30).
其特征在于， 在所述外节臂 （10) 的内表面上沿其臂筒长度方向设置有分 别单独与所述滑块 （50) 配合的多个定位件。 It is characterized in that a plurality of positioning members which are separately engaged with the slider (50) are provided on the inner surface of the outer joint arm (10) along the longitudinal direction of the arm barrel.
3. 根据权利要求 2所述的臂间定位结构， 其特征在于， 所述多个定位件为多个贴 板 （70)。 The inter-arm positioning structure according to claim 2, wherein the plurality of positioning members are a plurality of stickers (70).
4. 根据权利要求 3所述的臂间定位结构， 其特征在于， 所述多个贴板 （70) 的设 置位置与所述内节臂 （30) 的多个工作位置分别相对应。 The inter-arm positioning structure according to claim 3, wherein the plurality of plates (70) are disposed at positions corresponding to the plurality of working positions of the inner segment arms (30).
5. 根据权利要求 3或 4所述的臂间定位结构， 其特征在于， 所述多个贴板 （70) 焊接或者螺接在所述外节臂 （10) 的内表面上。 The inter-arm positioning structure according to claim 3 or 4, characterized in that the plurality of plates (70) are welded or screwed onto the inner surface of the outer joint arm (10).
6. 根据权利要求 3或 4所述的臂间定位结构， 其特征在于， 所述多个贴板 （70) 中的每一个分别与所述滑块 （50) 面接触。 The inter-arm positioning structure according to claim 3 or 4, characterized in that each of the plurality of patches (70) is in surface contact with the slider (50).
7. 根据权利要求 6所述的臂间定位结构， 其特征在于， 所述多个贴板 （70) 的接 触面积大于所述滑块 （50) 的接触面积。 7. The inter-arm positioning structure according to claim 6, wherein a contact area of the plurality of stickers (70) is larger than a contact area of the slider (50).
8. —种起重机吊臂， 其特征在于， 具有权利要求 2至 7中任一项所述的起重机吊 臂的臂间定位结构。 A crane boom characterized by having an inter-arm positioning structure of the crane boom according to any one of claims 2 to 7.
9. 一种起重机， 其特征在于， 具有权利要求 8所述的起重机吊臂。
A crane comprising the crane boom of claim 8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/CN2011/077754 WO2013013413A1 (en) | 2011-07-28 | 2011-07-28 | Method and structure for inter-section positioning of crane boom, crane boom and crane |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/CN2011/077754 WO2013013413A1 (en) | 2011-07-28 | 2011-07-28 | Method and structure for inter-section positioning of crane boom, crane boom and crane |
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| Publication Number | Publication Date |
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| WO2013013413A1 true WO2013013413A1 (en) | 2013-01-31 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/CN2011/077754 WO2013013413A1 (en) | 2011-07-28 | 2011-07-28 | Method and structure for inter-section positioning of crane boom, crane boom and crane |
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| WO (1) | WO2013013413A1 (en) |
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| JPH09151080A (en) * | 1995-11-29 | 1997-06-10 | Aichi Corp | Boom tail slider |
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