CN102109443B - High-accuracy hydraulic repeated loading test device - Google Patents

Abstract

Translated fromChinese

本发明涉及一种高精度液压式反复加载试验装置，由反力架、滑轮、千斤顶、夹具、液压系统、底座、可调铰、试件和绳索组成，反力架底部基座固定于试验台座上方，滑轮固定于反力架顶部，以方便移动和固定千斤顶，千斤顶固定于底座上，底座通过侧向连接板固定于反力架一侧；千斤顶一侧设有可调铰，液压系统连接千斤顶，为其提供必要的压力；夹具由第一臂、第二臂通过螺栓连接组成框架结构，第一臂和第二臂对称布置，第二臂中部开槽，试件穿过夹具的第一臂和第二臂组成的框架结构；可调铰一端伸入第二臂开槽部位；绳索一端连接千斤顶，另一端穿过滑轮。整个设备可以实现对试件进行多轴加载试验，易于操作，可靠性高，适用于多种结构的多轴加载试验。

The invention relates to a high-precision hydraulic repeated loading test device, which is composed of a reaction force frame, a pulley, a jack, a fixture, a hydraulic system, a base, an adjustable hinge, a test piece and ropes, and the bottom base of the reaction force frame is fixed on the test bench Above, the pulley is fixed on the top of the reaction frame to facilitate the movement and fixation of the jack. The jack is fixed on the base, and the base is fixed to one side of the reaction frame through a lateral connecting plate; one side of the jack is equipped with an adjustable hinge, and the hydraulic system is connected to the jack. , to provide the necessary pressure; the fixture consists of the first arm and the second arm connected by bolts to form a frame structure, the first arm and the second arm are symmetrically arranged, the middle of the second arm is slotted, and the specimen passes through the first arm of the fixture A frame structure composed of the second arm; one end of the adjustable hinge extends into the slot of the second arm; one end of the rope is connected to the jack, and the other end passes through the pulley. The whole equipment can realize the multi-axial loading test on the specimen, is easy to operate, has high reliability, and is suitable for multi-axial loading tests of various structures.

Description

Translated fromChinese

高精度液压式反复加载试验装置High-precision hydraulic repeated loading test device

技术领域technical field

本发明属于加载装置领域，具体涉及一种高精度液压式反复加载试验装置。The invention belongs to the field of loading devices, in particular to a high-precision hydraulic repeated loading test device.

背景技术Background technique

目前，公知的结构试验反复加载装置构造较为简单，承载能力有限，且应用范围较小，不具有可推广性。将试件固定于临时反力架或者反力墙旁边，然后根据试验要求，在需要对试件进行加载的位置安装加载单向加载仪器，通过手动控制加载力和位移的大小。这种试验一般只能实现水平单调加载试验，加载力大小和加载行程有限，并且，加载点的位置不能随构件和加载设备形状的不同而进行调整，精度较差；反力架构造简单，最大承载力有限；整套装置大都为临时安装，仅能适用于部分较为特殊的试件测试，没有可推广的空间，每一种试验均要重复设计和调整，在一定程度上造成不必要的人力和物力上的浪费。At present, the known repeated loading devices for structural tests are relatively simple in structure, have limited bearing capacity, and have a small application range, so they are not scalable. Fix the test piece next to the temporary reaction frame or the reaction wall, and then according to the test requirements, install a loading one-way loading instrument at the position where the test piece needs to be loaded, and manually control the loading force and displacement. Generally, this kind of test can only realize horizontal monotonic loading test, the loading force and loading stroke are limited, and the position of the loading point cannot be adjusted according to the shape of the component and the loading equipment, and the accuracy is poor; the reaction frame is simple in structure, and the maximum The bearing capacity is limited; most of the whole set of devices is temporarily installed, which can only be applied to some special test pieces, and there is no room for promotion. Each test has to be designed and adjusted repeatedly, causing unnecessary manpower and labor to a certain extent. Waste of material resources.

发明内容Contents of the invention

本发明的目的在于提供一种高精度液压式反复加载试验装置，使反复加载装置满足更多试验的需要，并提高现有试验用临时加载装置的精度、试验能力和应用范围，适用于各种尺寸和强度的试件的试验，并且使其具有可推广性。The object of the present invention is to provide a high-precision hydraulic repeated loading test device, so that the repeated loading device can meet the needs of more tests, and improve the accuracy, test ability and application range of the existing temporary loading device for testing, and is suitable for various The size and strength of the test piece test, and make it generalizable.

本发明提出的高精度液压式反复加载试验装置，由反力架1、滑轮7、千斤顶4、夹具6、液压系统9、底座3、可调铰5、试件8和绳索12组成，其中：反力架1底部基座固定于试验台座上方，滑轮7固定于反力架1顶部，以方便移动和固定千斤顶4，千斤顶4固定于底座3上，底座3通过侧向连接板2固定于反力架1一侧；千斤顶4一侧设有可调铰5，液压系统9连接千斤顶4，为其提供必要的压力；夹具6由第一臂10、第二臂11通过螺栓连接组成框架结构，第一臂10和第二臂11对称布置，第二臂11中部开槽，试件8穿过夹具6的第一臂10和第二臂11组成的框架结构；可调铰5一端伸入第二臂11开槽部位；绳索12一端连接千斤顶4，另一端穿过滑轮7。The high-precision hydraulic repeated loading test device proposed by the present invention is composed of areaction force frame 1, a pulley 7, a jack 4, aclamp 6, ahydraulic system 9, a base 3, an adjustable hinge 5, atest piece 8 and a rope 12, wherein: The bottom base of thereaction frame 1 is fixed above the test bench, and the pulley 7 is fixed on the top of thereaction frame 1 to facilitate moving and fixing the jack 4. The jack 4 is fixed on the base 3, and the base 3 is fixed on the counter through the lateral connectingplate 2. One side of theforce frame 1; one side of the jack 4 is provided with an adjustable hinge 5, and thehydraulic system 9 is connected to the jack 4 to provide necessary pressure; theclamp 6 is composed of afirst arm 10 and asecond arm 11 connected by bolts to form a frame structure. Thefirst arm 10 and thesecond arm 11 are symmetrically arranged, the middle part of thesecond arm 11 is slotted, and thetest piece 8 passes through the frame structure formed by thefirst arm 10 and thesecond arm 11 of thefixture 6; one end of the adjustable hinge 5 extends into thefirst arm 11 Twoarms 11 slotted parts; Rope 12 one end connects jack 4, and the other end passes pulley 7.

本发明中，反力架1底部基座设置有螺栓孔。In the present invention, the bottom base of thereaction force frame 1 is provided with bolt holes.

本发明中，反力架1竖向设置等间距的螺栓孔。In the present invention, thereaction force frame 1 is vertically provided with equally spaced bolt holes.

本发明中，数据采集系统与本装置连接。In the present invention, the data acquisition system is connected with the device.

本发明中，所述千斤顶4采用液压千斤顶。In the present invention, the jack 4 is a hydraulic jack.

1、设计钢结构反力架，并具有较高承载力；2、在反力架的基座设置螺栓孔以便于将其固定于试验台座并可以以螺栓孔距为模数调整反力架与试件之间的距离；3、沿反力架的竖向，设置等间距的螺栓孔，以便加载装置与反力架的有效连接和位置调整；4、设计加载设备与反力架之间的侧向连接板，实现加载设备与反力架的有效连接，并可实现高精度定位和调整；5、设计试验用夹具，可以对试件进行反复加载试验；6、设计侧向连接板，实现加载设备底板与反力架之间的有效连接，并可实现高精度定位和调整；7、千斤顶作为加载设备，为反力架的一部分，实现对试件的高精度加载；8、千斤顶两端采用可调铰连接，保证加载力保持为水平方向；9、配备实时数据采集系统，提高试验的效率和可靠性。1. Design a steel structure reaction frame with high bearing capacity; 2. Set bolt holes on the base of the reaction frame to fix it on the test bench and adjust the reaction frame and the distance between the bolt holes as the modulus. The distance between the test pieces; 3. Along the vertical direction of the reaction force frame, set bolt holes at equal intervals to facilitate the effective connection and position adjustment of the loading device and the reaction force frame; 4. Design the distance between the loading device and the reaction force frame The lateral connection plate realizes the effective connection between the loading equipment and the reaction force frame, and can realize high-precision positioning and adjustment; 5. Design the fixture for the test, which can carry out repeated loading tests on the specimen; 6. Design the lateral connection plate to realize The effective connection between the bottom plate of the loading equipment and the reaction frame can realize high-precision positioning and adjustment; 7. As a loading device, the jack is a part of the reaction frame to realize high-precision loading of the test piece; 8. Both ends of the jack Adjustable hinge connection is used to ensure that the loading force remains in the horizontal direction; 9. Equipped with a real-time data acquisition system to improve the efficiency and reliability of the test.

由于采用了上述方案，本发明具有以下特点：本发明反复加载装置可以有效克服现有临时单向加载装置的缺点，实现理想水平加载，可以对各种尺寸的试件进行水平反复加载试验，使用方便，结构可靠灵活，有效地提高了加载装置的使用空间和使用效率，在结构工程试验领域，具有广阔的使用和推广空间。Due to the adoption of the above scheme, the present invention has the following characteristics: the repeated loading device of the present invention can effectively overcome the shortcomings of the existing temporary one-way loading device, realize ideal horizontal loading, and can perform horizontal repeated loading tests on test pieces of various sizes. The utility model has the advantages of convenience, reliable and flexible structure, effectively improves the use space and efficiency of the loading device, and has broad application and popularization space in the field of structural engineering test.

附图说明Description of drawings

图1为本发明的主视图。Fig. 1 is the front view of the present invention.

图2为本发明的俯视图。。Fig. 2 is a top view of the present invention. .

    图中标号：1为反力架，2为侧向连接板，3为底座，4为千斤顶，5为可调铰，6为夹具，7为滑轮，8为试件，9为液压系统，10为第一臂，11为第二臂，12为绳索。Numbers in the figure: 1 is the reaction force frame, 2 is the lateral connecting plate, 3 is the base, 4 is the jack, 5 is the adjustable hinge, 6 is the fixture, 7 is the pulley, 8 is the test piece, 9 is the hydraulic system, 10 Is the first arm, 11 is the second arm, and 12 is the rope.

具体实施方式Detailed ways

下面通过实施例结合附图进一步说明本发明。The present invention is further illustrated below by means of embodiments in conjunction with the accompanying drawings.

实施例1：本发明提供一种新型的高精度液压式反复加载装置，该装置包括反力架1、千斤顶4，装置连接数据采集系统。千斤顶4采用液压千斤顶，可以根据试验需要调整其在反力架1上的相对位置，并且可以实现高精度反复加载，数据采集系统可以实时采集试验过程中的数据。Embodiment 1: The present invention provides a new type of high-precision hydraulic repetitive loading device, which includes areaction force frame 1 and a jack 4, and the device is connected to a data acquisition system. The jack 4 is a hydraulic jack, which can adjust its relative position on thereaction frame 1 according to the test requirements, and can realize high-precision repeated loading. The data acquisition system can collect data during the test in real time.

    如图1和图2所示，反力架1柱脚开等间距圆形螺栓孔，间距100mm，孔径25mm。反力架1一侧开等间距圆形螺栓孔，间距100mm，孔径25mm。夹具6的第一臂10和第二臂11两臂对称，其中第二臂11开槽30mm×50mm；第一臂10和第二臂11的上下两侧均开有直径为25mm的螺栓孔。千斤顶4与反力架1间的侧向连接板2开竖向槽孔，竖向可调尺寸±50mm。千斤顶的底座3开水平向槽孔，水平向可调尺寸±60mm。试件8固定于试验台座，根据试验要求，确定反力架1的位置，并将其固定于试验台座；根据试件加载点的位置，确定加载千斤顶4的位置，将侧向连接板2用螺栓与反力架1连接，安装千斤顶的底座3，并将千斤顶4安装于底座3上；竖向调整侧向连接板2，确定加载点的竖向位置后拧紧螺栓，水平调整千斤顶的底座3的位置，确定加载点的水平位置，并拧紧连接螺栓，完成加载对中，液压千斤顶4的前后可调铰5保证加载力保持为水平方向，液压系统9可实时控制加载制度；在反力架上方悬挂滑轮7通过绳索12拉住水平向千斤顶4，防止千斤顶4在试验过程中坠落。本加载装置可实现位移反复加载和承载力反复加载，反力架最大承载力（加载点位于反力架顶部）10吨，位移加载以100mm为模数，行程由千斤顶的最大行程决定。 As shown in Figure 1 and Figure 2, circular bolt holes are equally spaced at the base of thecolumn 1 of the reaction frame, with a spacing of 100mm and a hole diameter of 25mm. One side of thereaction frame 1 is provided with equidistant circular bolt holes with a spacing of 100mm and a hole diameter of 25mm. Thefirst arm 10 and thesecond arm 11 of thefixture 6 are two-arm symmetrical, wherein thesecond arm 11 is slotted 30mm×50mm; the upper and lower sides of thefirst arm 10 and thesecond arm 11 are provided with bolt holes with a diameter of 25mm. Thelateral connection plate 2 between the jack 4 and thereaction frame 1 has a vertical slot, and the vertical adjustable size is ±50mm. The base of the jack has 3 horizontal slot holes, and the horizontal adjustable dimension is ±60mm. Thetest piece 8 is fixed on the test bench. According to the test requirements, determine the position of thereaction frame 1 and fix it on the test bench; according to the position of the loading point of the test piece, determine the position of the loading jack 4, and use the The bolt is connected with thereaction frame 1, the base 3 of the jack is installed, and the jack 4 is installed on the base 3; the lateral connectingplate 2 is adjusted vertically, the bolt is tightened after determining the vertical position of the loading point, and the base 3 of the jack is adjusted horizontally Determine the horizontal position of the loading point, and tighten the connecting bolts to complete the loading centering. The front and rear adjustable hinges 5 of the hydraulic jack 4 ensure that the loading force remains in the horizontal direction, and thehydraulic system 9 can control the loading system in real time; Above suspension pulley 7 pulls level to jack 4 by rope 12, prevents jack 4 from falling in the test process. The loading device can realize repeated loading of displacement and bearing capacity. The maximum bearing capacity of the reaction frame (the loading point is located on the top of the reaction frame) is 10 tons. The displacement loading takes 100mm as the modulus, and the stroke is determined by the maximum stroke of the jack.

Claims (4)

Translated fromChinese

1.一种高精度液压式反复加载试验装置，包括反力架(1)、滑轮(7)、千斤顶(4)、夹具(6)、液压系统(9)、底座(3)、可调铰(5)、试件(8)和绳索(12)，其特征在于反力架(1)底部基座固定于试验台座上方，滑轮(7)固定于反力架(1)顶部，以方便移动和固定千斤顶(4)，千斤顶(4)固定于底座(3)上，底座(3)通过侧向连接板(2)固定于反力架(1)一侧；千斤顶(4)一侧设有可调铰(5)，液压系统(9)连接千斤顶(4)，为其提供必要的压力；夹具(6)由第一臂(10)、第二臂(11)通过螺栓连接组成框架结构，第一臂(10)和第二臂(11)对称布置，第二臂(11)中部开槽，试件(8)穿过夹具(6)的第一臂(10)和第二臂(11)组成的框架结构；可调铰(5)一端伸入第二臂(11)开槽部位；绳索(12)一端连接千斤顶(4)，另一端穿过滑轮(7)。1. A high-precision hydraulic repeated loading test device, including a reaction frame (1), a pulley (7), a jack (4), a fixture (6), a hydraulic system (9), a base (3), an adjustable hinge (5), the test piece (8) and the rope (12), are characterized in that the bottom base of the reaction force frame (1) is fixed above the test bench, and the pulley (7) is fixed on the top of the reaction force frame (1) to facilitate movement and a fixed jack (4), the jack (4) is fixed on the base (3), and the base (3) is fixed on one side of the reaction frame (1) through the lateral connecting plate (2); one side of the jack (4) is provided with The adjustable hinge (5), the hydraulic system (9) is connected to the jack (4) to provide the necessary pressure; the clamp (6) is composed of a first arm (10) and a second arm (11) connected by bolts to form a frame structure, The first arm (10) and the second arm (11) are arranged symmetrically, the middle part of the second arm (11) is slotted, and the specimen (8) passes through the first arm (10) and the second arm (11) of the fixture (6) ) frame structure; one end of the adjustable hinge (5) stretches into the slotted position of the second arm (11); one end of the rope (12) is connected to the jack (4), and the other end passes through the pulley (7).2.根据权利要求1所述的高精度液压式反复加载试验装置，其特征在于所述反力架(1)底部基座设置有螺栓孔。2. The high-precision hydraulic repeated loading test device according to claim 1, characterized in that the bottom base of the reaction force frame (1) is provided with bolt holes.3.根据权利要求1所述的高精度液压式反复加载试验装置，其特征在于所述反力架(1)竖向设置等间距的螺栓孔。3. The high-precision hydraulic repeated loading test device according to claim 1, characterized in that the reaction force frame (1) is vertically provided with equally spaced bolt holes.4.根据权利要求1所述的高精度液压式反复加载试验装置，其特征在于所述千斤顶(4)采用液压千斤顶。4. The high-precision hydraulic repeated loading test device according to claim 1, characterized in that the jack (4) is a hydraulic jack.

Images