CN116296885B - A four-bar linkage bending and torsion experimental device - Google Patents
A four-bar linkage bending and torsion experimental device Download PDFInfo
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Abstract
本发明涉及建筑结构实验技术领域，具体为一种四杆联动的弯扭实验装置。其为了解决现有的弯扭实验装置的实验精准度不足的问题，故提供了一种四杆联动的弯扭实验装置，加载组件包括导轨、地梁、顶梁、四杆联动杆件、转换钢梁、反力架、作动器，四杆联动杆件布置于导轨的右侧，四杆联动杆件包括四个钢梁，相邻两个钢梁铰接，顶梁的底端与位于上部的两个钢梁之间的铰接轴固定连接，顶梁的顶端与作动器固定连接，地梁的顶端与位于下部的两个钢梁之间的铰接轴固定连接，转换钢梁位于四杆联动杆件的中心，转换钢梁的右端面均布有多个加载连接孔；支撑组件包括底座、边界钢梁、压梁，边界钢梁的左端面均布有多个支撑连接孔。该装置提高了实验的精准度。
The invention relates to the technical field of building structure experiments, in particular to a four-bar linkage bending and torsion experiment device. In order to solve the problem of insufficient experimental accuracy of the existing bending and torsion experimental devices, a four-bar linkage bending and torsion experimental device is provided. The loading components include guide rails, ground beams, top beams, four-bar linkage rods, conversion Steel beams, reaction frames, actuators, and four-bar linkage members are arranged on the right side of the guide rail. The four-bar linkage members include four steel beams, two adjacent steel beams are hinged, and the bottom end of the top beam is connected to the upper part. The hinge shaft between the two steel beams is fixedly connected, the top of the top beam is fixedly connected to the actuator, the top of the ground beam is fixedly connected to the hinge shaft between the two steel beams at the lower part, and the conversion steel beam is located on the four-bar In the center of the linkage member, multiple loading connection holes are evenly distributed on the right end surface of the transfer steel beam; the supporting component includes a base, a boundary steel beam, and a pressure beam, and multiple support connection holes are evenly distributed on the left end surface of the boundary steel beam. The device improves the accuracy of the experiment.
Description
技术领域technical field
本发明涉及建筑结构实验技术领域，特别涉及弯扭实验装置，具体为一种四杆联动的弯扭实验装置。The invention relates to the technical field of building structure experiments, in particular to a bending and torsion experimental device, in particular to a four-bar linkage bending and torsion experimental device.
背景技术Background technique
随着建筑结构体系的发展，受设计需求和外部环境影响，承重试件往往承受弯-扭载荷的共同作用。如目前发展迅猛的风电塔架结构，其属于柔性结构，故对风荷载造成的弯矩和扭矩作用较敏感。With the development of building structural systems, affected by design requirements and external environment, load-bearing specimens often bear the joint action of bending-torsional loads. For example, the wind power tower structure, which is currently developing rapidly, is a flexible structure, so it is more sensitive to the bending moment and torque caused by wind load.
现有的弯扭实验装置如2013年清华大学王宇航发表的名称为“曲线梁桥钢管混凝土桥墩的扭转效应研究”的博士学位论文，通过两个水平作动器协同加载实现了弯扭实验。该弯扭实验装置由于其良好的模拟效果而得到广泛应用，但该实验装置在进行弯扭实验时，存在以下缺陷：1）试件在进行弯扭实验过程中会发生轴向变形，随之加载梁也会发生轴向位移，导致作动器的水平力作用线发生向下偏移，从而降低了实验的精准度；2）在进行弯扭实验时，需要两个作动器的协调加载，加载过程过于繁琐。Existing bending and torsion experimental devices, such as the doctoral dissertation titled "Research on Torsional Effects of Concrete Steel Tube Piers of Curved Girder Bridges" published by Wang Yuhang of Tsinghua University in 2013, realized bending and torsion experiments through the coordinated loading of two horizontal actuators. The bending and torsion test device has been widely used due to its good simulation effect, but the experimental device has the following defects when performing the bending and torsion test: 1) The specimen will undergo axial deformation during the bending and torsion test, and then The axial displacement of the loading beam will also cause the horizontal force line of the actuator to shift downward, thereby reducing the accuracy of the experiment; 2) When performing the bending and torsion experiment, the coordinated loading of the two actuators is required , the loading process is too cumbersome.
发明内容Contents of the invention
本发明为了解决现有的弯扭实验装置的实验精准度较低以及两个作动器的协调加载过程过于繁琐的问题，故提供了一种四杆联动的弯扭实验装置。The present invention provides a four-bar linkage bending and torsion experimental device in order to solve the problems of low experimental accuracy of the existing bending and torsion experimental device and the complicated loading process of the two actuators.
本发明是采用如下技术方案实现的：一种四杆联动的弯扭实验装置，包括加载组件、支撑组件；The present invention is realized by adopting the following technical solutions: a four-bar linkage bending and torsion experimental device, including a loading assembly and a supporting assembly;
加载组件包括竖直布置的导轨、地梁、顶梁、四杆联动杆件、转换钢梁、反力架、作动器，四杆联动杆件竖直布置且平行布置于导轨的右侧，四杆联动杆件包括四个整体围成平行四边形的钢梁且分别为位于平行四边形中心上部的第一钢梁和第二钢梁、位于平行四边形中心下部的第三钢梁和第四钢梁，相邻两个钢梁之间铰接（两个钢梁如何铰接属于本领域技术人员通过常规手段可获得，即可通过耳板与铰接轴的配合实现铰接结构）且铰接轴的轴向沿左右方向布置，第一钢梁和第二钢梁之间的铰接轴滑动连接于导轨，顶梁的底端与第一钢梁和第二钢梁之间的铰接轴固定连接，作动器的顶端固定于反力架（反力架如何布置属于本领域技术人员的常规技术手段，只要能固定作动器即可），顶梁的顶端中心与作动器的底端固定连接，作动器的作用线通过四杆联动杆件的形心，地梁的顶端与第三钢梁和第四钢梁之间的铰接轴固定连接，转换钢梁位于四杆联动的中心且其（其指转换钢梁）相对的两端分别与对应的其中两个相对布置的钢梁的内侧面铰接且铰接轴的轴向沿左右方向布置，转换钢梁的右端面的中心均布有多个用于与试件一端的连接板通过螺栓固定连接的加载连接孔；The loading assembly includes vertically arranged guide rails, ground beams, top beams, four-bar linkage members, conversion steel beams, reaction frames, and actuators. The four-bar linkage members are arranged vertically and parallel to the right side of the guide rails. The four-bar linkage member includes four steel beams that form a parallelogram as a whole, and are respectively the first steel beam and the second steel beam located at the upper part of the center of the parallelogram, and the third steel beam and the fourth steel beam located at the lower part of the parallelogram center. , between two adjacent steel beams are hinged (how two steel beams are hinged can be obtained by those skilled in the art through conventional means, that is, the hinged structure can be realized through the cooperation of the lug plate and the hinged shaft), and the axial direction of the hinged shaft is along the left and right Direction arrangement, the hinge shaft between the first steel beam and the second steel beam is slidingly connected to the guide rail, the bottom end of the top beam is fixedly connected with the hinge shaft between the first steel beam and the second steel beam, and the top end of the actuator It is fixed on the reaction frame (how to arrange the reaction frame belongs to the conventional technical means of those skilled in the art, as long as the actuator can be fixed), the top center of the top beam is fixedly connected with the bottom end of the actuator, and the actuator’s The line of action passes through the centroid of the four-bar linkage member, the top of the ground beam is fixedly connected to the hinge shaft between the third steel beam and the fourth steel beam, the transfer steel beam is located at the center of the four-bar linkage and its (it refers to the transfer steel The opposite ends of the beam) are respectively hinged with the inner surfaces of the corresponding two oppositely arranged steel beams and the axis of the hinge shaft is arranged along the left and right directions. The connecting plate at one end of the component is fixedly connected by bolts to the loading connecting hole;
支撑组件包括从下至上依次布置的底座、边界钢梁、压梁，底座与边界钢梁之间设有多个沿左右方向均布且其轴向均沿前后方向布置的上滚轴，压梁与边界钢梁之间设有多个沿左右方向均布且其轴向均沿前后方向布置的下滚轴，底座与压梁通过长锚杆实现连接，边界钢梁的左端面均布有多个用于与试件另外一端的连接板通过螺栓固定连接的支撑连接孔。The support assembly includes a base, a boundary steel beam, and a pressure beam arranged sequentially from bottom to top. Between the base and the boundary steel beam, there are multiple upper rollers that are evenly distributed along the left and right directions and whose axial directions are arranged along the front and rear directions. The pressure beam Between the boundary steel beam and the boundary steel beam, there are multiple lower rolling shafts that are evenly distributed in the left and right directions and whose axial directions are arranged in the front and rear directions. The base and the pressure beam are connected by long anchor rods. A supporting connection hole for connecting with the connecting plate at the other end of the specimen through bolts.
使用时：将导轨的底部、地梁的底部、底座的底部均固定于地面的对应位置，然后对该装置的其余部件进行安装，其中安装四杆联动杆件时，为便于安装可将相邻的两个钢梁内侧夹角处可拆卸安装一临时拉杆来保障四杆联动杆件的稳定性，安装完成后将试件的一端连接板与转换钢梁的右端面通过螺栓固定连接，将试件的另一端连接板与转换钢梁的左端面通过螺栓固定连接，实验时，拆除临时拉杆，作动器驱动顶梁向下移动，迫使四杆联动发生变形，使得试件受到弯扭载荷作用。When in use: Fix the bottom of the guide rail, the bottom of the ground beam, and the bottom of the base to the corresponding positions on the ground, and then install the rest of the device. When installing the four-bar linkage rod, for the convenience of installation, the adjacent A temporary tie rod can be disassembled and installed at the inner corner of the two steel beams to ensure the stability of the four-bar linkage member. The connecting plate at the other end of the component is fixedly connected with the left end face of the transfer steel beam by bolts. During the experiment, the temporary tie rod is removed, and the actuator drives the top beam to move downward, forcing the deformation of the four-bar linkage, so that the specimen is subjected to bending and torsional loads. .
本发明所产生的有益效果如下：1）该装置可适用于多种截面形状和截面尺寸的试件，也可通过移动底座相对地梁的相对位置实现不同长度试件的固定；2）采用该装置在进行弯扭实验时，作动器的作用线不会因为试件的弯扭变形而发生偏移，可更好的模拟试件在弯扭荷载作用下的受力性能，提高该实验的精准度；3）采用该装置在进行弯扭实验时，只需一个作动器动作即可，加载简单，安装便捷，且可采用立式或卧式布置，以适用各种实验室条件；4）通过在支撑组件中设置上滚轴和下滚轴，使得试件在弯扭载荷作用下产生的轴向变形将被定向释放，提高该实验的稳定性和精准度。The beneficial effects produced by the present invention are as follows: 1) The device is applicable to test pieces of various cross-sectional shapes and cross-sectional sizes, and can also fix test pieces of different lengths by moving the relative position of the base relative to the ground beam; 2) adopting the When the device is performing the bending and torsion test, the action line of the actuator will not be shifted due to the bending and torsion deformation of the specimen, which can better simulate the mechanical performance of the specimen under the bending and torsion load, and improve the test performance. Accuracy; 3) When using this device to perform bending and torsion experiments, only one actuator is needed to move, the loading is simple, the installation is convenient, and it can be arranged vertically or horizontally to adapt to various laboratory conditions; 4 ) By setting the upper and lower rollers in the support assembly, the axial deformation of the specimen under the action of bending and torsional loads will be released in a directional manner, improving the stability and accuracy of the experiment.
附图说明Description of drawings
此处的附图被并入说明书中并构成本说明书的一部分，表示出了符合本发明的实施例，并与说明书一起用于解释本发明的原理。The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the invention and together with the description serve to explain the principles of the invention.
为了更清楚地说明本发明实施例或现有技术中的技术方案，下面将对实施例或现有技术描述中所需要使用的附图作简单地介绍，显而易见地，对于本领域普通技术人员而言，在不付出创造性劳动性的前提下，还可以根据这些附图获得其他的附图。In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings that need to be used in the description of the embodiments or the prior art. Obviously, for those of ordinary skill in the art, In other words, other drawings can also be obtained from these drawings without paying creative labor.
图1为本发明的四杆联动的弯扭实验装置的整体结构示意图一；Fig. 1 is the overall structure schematic diagram one of the four-bar linkage bending and torsion experimental device of the present invention;
图2为本发明的四杆联动的弯扭实验装置的整体结构示意图二（无反力架和作动器）；Fig. 2 is a schematic diagram 2 of the overall structure of the four-bar linkage bending and torsion experimental device of the present invention (without reaction frame and actuator);
图3为本发明的四杆联动的弯扭实验装置的整体结构示意图三（无反力架和作动器）；Fig. 3 is a schematic diagram of the overall structure of the four-bar linkage bending and torsion experimental device III of the present invention (without reaction frame and actuator);
图4为第一钢梁和第二钢梁之间的铰接轴、滑块、内滚动轴承、外滚动轴承、两个螺母之间的装配结构示意图。Fig. 4 is a schematic diagram of the assembly structure between the hinge shaft between the first steel beam and the second steel beam, the slider, the inner rolling bearing, the outer rolling bearing, and two nuts.
图中：1-试件，2-连接板，3—作动器，4—导轨，5—地梁，6—顶梁，7—转换钢梁，8—反力架，9—第一钢梁，10—第二钢梁，11—第三钢梁，12—第四钢梁，13—底座，14—边界钢梁，15—压梁，16—上滚轴，17—下滚轴，18—长锚杆，19—滑块，20—螺杆，21—内固定轴，22—内滚动轴承，23—外固定轴，24—外滚动轴承，25—转换双耳板，26—转换单耳板，27—顶梁双耳板，28—螺母。In the figure: 1-test piece, 2-connecting plate, 3-actuator, 4-guide rail, 5-ground beam, 6-top beam, 7-transfer steel beam, 8-reaction frame, 9-first steel Beam, 10—the second steel beam, 11—the third steel beam, 12—the fourth steel beam, 13—base, 14—boundary steel beam, 15—pressure beam, 16—upper roller, 17—lower roller, 18—long anchor rod, 19—slider, 20—screw, 21—inner fixed shaft, 22—inner rolling bearing, 23—outer fixed shaft, 24—outer rolling bearing, 25—convert double ear plate, 26—convert single ear plate , 27—top beam double ear plate, 28—nut.
具体实施方式Detailed ways
为了能够更清楚地理解本发明的上述目的、特征和优点，下面将对本发明的方案进行进一步描述。需要说明的是，在不冲突的情况下，本发明的实施例及实施例中的特征可以相互组合。In order to understand the above-mentioned purpose, features and advantages of the present invention more clearly, the solutions of the present invention will be further described below. It should be noted that, in the case of no conflict, the embodiments of the present invention and the features in the embodiments can be combined with each other.
在描述中，需要说明的是，术语 “第一”、“第二”仅用于描述目的，而不能理解为指示或暗示相对重要性。需要说明的是，除非另有明确的规定和限定，术语“安装”、“相连”、“连接”应做广义理解，例如，可以是固定连接，也可以是可拆卸连接，或一体地连接；可以是机械连接，也可以是电连接；可以是直接相连，也可以通过中间媒介间接相连，可以是两个元件内部的连通。对于本领域的普通技术人员而言，可以根据具体情况理解上述术语的具体含义。In the description, it should be noted that the terms "first" and "second" are used for description purposes only, and should not be understood as indicating or implying relative importance. It should be noted that, unless otherwise clearly stipulated and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; It can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediary, and it can be the internal communication of two components. Those of ordinary skill in the art can understand the specific meanings of the above terms according to specific situations.
在下面的描述中阐述了很多具体细节以便于充分理解本发明，但本发明还可以采用其他不同于在此描述的方式来实施；显然，说明书中的实施例只是本发明的一部分实施例，而不是全部的实施例。In the following description, many specific details have been set forth in order to fully understand the present invention, but the present invention can also be implemented in other ways different from those described here; obviously, the embodiments in the description are only some embodiments of the present invention, and Not all examples.
下面结合附图对本发明的具体实施例进行详细说明。Specific embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings.
如图1、2、3、4所示，一种四杆联动的弯扭实验装置，包括加载组件、支撑组件；As shown in Figures 1, 2, 3, and 4, a four-bar linkage bending and torsion experimental device includes a loading assembly and a supporting assembly;
加载组件包括竖直布置的导轨4、地梁5、顶梁6、四杆联动杆件、转换钢梁7、反力架8、作动器3，四杆联动杆件竖直布置且平行布置于导轨4的右侧，四杆联动杆件包括四个整体围成平行四边形的钢梁且分别为位于平行四边形中心上部的第一钢梁9和第二钢梁10、位于平行四边形中心下部的第三钢梁11和第四钢梁12，相邻两个钢梁之间铰接（两个钢梁如何铰接属于本领域技术人员通过常规手段可获得，即可通过耳板与铰接轴的配合实现铰接结构）且铰接轴的轴向沿左右方向布置，第一钢梁9和第二钢梁10之间的铰接轴滑动连接于导轨4，顶梁6的底端与第一钢梁9和第二钢梁10之间的铰接轴固定连接，作动器3的顶端固定于反力架8（反力架8如何布置属于本领域技术人员的常规技术手段，只要能固定作动器3即可），顶梁6的顶端中心与作动器3的底端固定连接，作动器3的作用线通过四杆联动杆件的形心，地梁5的顶端与第三钢梁11和第四钢梁12之间的铰接轴固定连接，转换钢梁7位于四杆联动的中心且其（其指转换钢梁7）相对的两端分别与对应的其中两个相对布置的钢梁的内侧面铰接且铰接轴的轴向沿左右方向布置，转换钢梁7的右端面的中心均布有多个用于与试件1一端的连接板2通过螺栓固定连接的加载连接孔；The loading assembly includes a vertically arranged guide rail 4, a ground beam 5, a top beam 6, a four-bar linkage member, a conversion steel beam 7, a reaction frame 8, and an actuator 3, and the four-bar linkage members are arranged vertically and in parallel. On the right side of the guide rail 4, the four-bar linkage member includes four steel beams that form a parallelogram as a whole and are respectively the first steel beam 9 and the second steel beam 10 located at the upper part of the parallelogram center, and the second steel beam 10 located at the lower part of the parallelogram center. The third steel beam 11 and the fourth steel beam 12 are hinged between two adjacent steel beams (how the two steel beams are hinged can be obtained by those skilled in the art through conventional means, which can be realized by the cooperation of the lug plate and the hinge shaft Hinged structure) and the axis of the hinge shaft is arranged along the left and right direction, the hinge shaft between the first steel beam 9 and the second steel beam 10 is slidingly connected to the guide rail 4, the bottom end of the top beam 6 is connected with the first steel beam 9 and the second steel beam 9 The hinge shafts between the two steel beams 10 are fixedly connected, and the top of the actuator 3 is fixed on the reaction force frame 8 (how to arrange the reaction force frame 8 belongs to the conventional technical means of those skilled in the art, as long as the actuator 3 can be fixed. ), the top center of the top beam 6 is fixedly connected to the bottom end of the actuator 3, the line of action of the actuator 3 passes through the centroid of the four-bar linkage member, the top of the ground beam 5 is connected to the third steel beam 11 and the fourth The hinge shafts between the steel beams 12 are fixedly connected, the transfer steel beam 7 is located at the center of the four-bar linkage and its (referring to the transfer steel beam 7) opposite ends are respectively connected to the inner surfaces of the corresponding two oppositely arranged steel beams Hinged and the axial direction of the hinge shaft is arranged along the left and right directions, and the center of the right end surface of the transfer steel beam 7 is evenly distributed with a plurality of loading connection holes for connecting with the connecting plate 2 at one end of the test piece 1 through bolts;
支撑组件包括从下至上依次布置的底座13、边界钢梁14、压梁15，底座13与边界钢梁14之间设有多个沿左右方向均布且其轴向均沿前后方向布置的上滚轴16，压梁15与边界钢梁14之间设有多个沿左右方向均布且其轴向均沿前后方向布置的下滚轴17，底座13与压梁15通过长锚杆18实现连接，边界钢梁14的左端面均布有多个用于与试件1另外一端的连接板2通过螺栓固定连接的支撑连接孔。The support assembly includes a base 13, a boundary steel beam 14, and a pressure beam 15 arranged sequentially from bottom to top. Between the base 13 and the boundary steel beam 14, there are a plurality of upper beams that are evenly distributed along the left and right directions and whose axial directions are arranged along the front and rear directions. Between the roller 16, the pressure beam 15 and the boundary steel beam 14, there are a plurality of lower rollers 17 that are evenly distributed along the left and right directions and whose axial directions are arranged along the front and rear directions. Connection, the left end surface of the boundary steel beam 14 is evenly distributed with a plurality of supporting connection holes for connecting with the connecting plate 2 at the other end of the test piece 1 through bolts.
使用时：将导轨4的底部、地梁5的底部、底座13的底部均固定于地面的对应位置，然后对该装置的其余部件进行安装，其中安装四杆联动杆件时，为便于安装可将相邻的两个钢梁内侧夹角处可拆卸安装一临时拉杆来保障四杆联动杆件的稳定性，安装完成后将试件1的一端连接板2与转换钢梁7的右端面通过螺栓固定连接，将试件1的另一端连接板2与转换钢梁7的左端面通过螺栓固定连接，实验时，拆除临时拉杆，作动器3驱动顶梁6向下移动，迫使四杆联动发生变形，使得试件1受到弯扭载荷作用。When in use: fix the bottom of the guide rail 4, the bottom of the ground beam 5, and the bottom of the base 13 to the corresponding positions on the ground, and then install the rest of the device. A temporary pull rod can be detachably installed at the inner corner of two adjacent steel beams to ensure the stability of the four-bar linkage member. Bolt fixed connection, the other end of the test piece 1 connecting plate 2 and the left end surface of the conversion steel beam 7 are fixedly connected by bolts, during the experiment, the temporary tie rod is removed, and the actuator 3 drives the top beam 6 to move downward, forcing the four-bar linkage Deformation occurs, so that the specimen 1 is subjected to bending and torsional loads.
具体实施时，导轨4为C型滑槽，第一钢梁9和第二钢梁10之间的铰接轴的靠近滑槽的一端固定有滑块19，滑块19的左端部位于滑槽内且其前后侧面均固定有其轴向沿前后方向布置的内固定轴21，每个内固定轴21的非与滑块19固定的端部均套固有与滑槽滑动配合的内滚动轴承22，滑块19的右端部位于滑槽外且其前后侧面均固定有其轴向沿前后方向布置的外固定轴23，每个外固定轴23的非与滑块19固定的端部均套固有与滑槽滑动配合的外滚动轴承24，极大程度地较小摩擦，提高该装置实验时的稳定性。During specific implementation, the guide rail 4 is a C-shaped chute, and one end of the hinge shaft between the first steel beam 9 and the second steel beam 10 near the chute is fixed with a slide block 19, and the left end of the slide block 19 is located in the chute And its front and rear sides are all fixed with its axial direction along the inner fixed shaft 21 that is arranged in the front and rear direction, and the end of each inner fixed shaft 21 that is not fixed with the slide block 19 is all covered with an inner rolling bearing 22 that is slidably matched with the chute. The right-hand end of block 19 is positioned at outside the chute and its front and rear sides are all fixed with the outer fixed shaft 23 that its axial direction arranges along the front and rear direction, and the non-fixed end of each outer fixed shaft 23 and slide block 19 are all sleeved inherently with the slide block. The outer rolling bearing 24 with the sliding fit of the groove greatly reduces friction and improves the stability of the device during experiments.
具体实施时，与转换钢梁7铰接的两个相对布置的钢梁为第一钢梁9和第三钢梁11，第一钢梁9和第三钢梁11的内侧面均固定有转换双耳板25，转换钢梁7的与第一钢梁9和第三钢梁11对应的两端均固定有与转换双耳板25相适配的转换单耳板26，铰接轴穿过转换双耳板25、转换单耳板26后实现转换钢梁7相对的两端分别与第一钢梁9和第三钢梁11的内侧面铰接。结构具体化、规范化。During specific implementation, the two oppositely arranged steel beams hinged with the conversion steel beam 7 are the first steel beam 9 and the third steel beam 11, and the inner surfaces of the first steel beam 9 and the third steel beam 11 are fixed with conversion double beams. Ear plate 25, the two ends corresponding to the first steel beam 9 and the third steel beam 11 of the conversion steel beam 7 are all fixed with the conversion single ear plate 26 that is compatible with the conversion double ear plate 25, and the hinge shaft passes through the conversion double ear plate. After the ear plate 25 and the single ear plate 26 are converted, the opposite ends of the converted steel beam 7 are hinged to the inner surfaces of the first steel beam 9 and the third steel beam 11 respectively. The structure is concrete and standardized.
具体实施时，顶梁6的底端面固定有顶梁双耳板27，第一钢梁9与第二钢梁10的铰接轴为螺杆20，第一钢梁9与第二钢梁10的铰接处位于顶梁双耳板27之间且顶梁6的底端分别通过位于顶梁双耳板27两侧的两个螺母28实现固定连接，便于安装与拆卸，同时也便于安装四杆联动杆件时方便调节四杆联动杆件的垂直度。During specific implementation, the bottom end surface of the top beam 6 is fixed with the double ear plate 27 of the top beam, the hinge axis of the first steel beam 9 and the second steel beam 10 is the screw rod 20, and the hinge of the first steel beam 9 and the second steel beam 10 It is located between the double ear plates 27 of the top beam and the bottom end of the top beam 6 is fixedly connected by two nuts 28 on both sides of the double ear plates 27 of the top beam, which is convenient for installation and disassembly, and is also convenient for installing a four-bar linkage It is convenient to adjust the verticality of the four-bar linkage rod during the installation.
本年具体实施方式中，第一钢梁9、第二钢梁10、第三钢梁11、第四钢梁12均为箱型梁或工字梁，提高该装置的稳定性。In this year's specific implementation, the first steel beam 9, the second steel beam 10, the third steel beam 11, and the fourth steel beam 12 are all box-shaped beams or I-beams to improve the stability of the device.
以上所述仅是本发明的具体实施方式，使本领域技术人员能够理解或实现本发明。尽管参照前述各实施例进行了详细的说明，本领域的普通技术人员应当理解：其依然可以对前述各实施例所记载的技术方案进行修改，或者对其中部分或者全部技术特征进行等同替换；而这些修改或者替换，并不使相应技术方案的本质脱离各实施例技术方案的范围，其均应涵盖权利要求书的保护范围中。The above descriptions are only specific embodiments of the present invention, so that those skilled in the art can understand or implement the present invention. Although detailed descriptions have been made with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some or all of the technical features; and These modifications or replacements do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of each embodiment, and all of them should be included in the protection scope of the claims.
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