Hydraulic loading device for load test

Abstract

The utility model discloses a hydraulic loading device for a load test, which relates to the technical field of test instruments and comprises a supporting seat, a test model box is arranged at the top end of the supporting seat, a supporting frame is arranged on the outer side of the test model box, the cross section of the supporting frame is of an inverted U-shaped structure, and a loading mechanism is arranged in the middle of the top end of the supporting frame in a penetrating manner; supporting plates are arranged on the two side walls in the supporting frame, and first hydraulic telescopic rods are arranged at the top ends of the supporting plates. According to the utility model, the result is scientific and novel, very accurate force control is provided by utilizing hydraulic loading, stable and adjustable load can be applied to a test object, errors and interference in a test process are reduced, the reliability of a test result is improved, and reliable support is provided for a mechanical test.

Description

TECHNICAL FIELD

[0001] The utility model relates to test instrument technical field, concretely related to a hydraulic load test loading device. BACKGROUND

[0002] Load test is a kind of important detection means, and its core purpose is to evaluate and verify the load-carrying capacity of structural member, to ensure the safety and stability of these structural members in actual use. When load test is carried out, the test personnel will apply specific load to the structural member to be detected, which is usually realized by simulating the stress state in actual use, for example, accurately stacking heavy objects on the structural member. Then, the test personnel will closely monitor the deformation or damage of the structural member under load, and these intuitive data become an important basis for evaluating the load-carrying capacity of the structural member.

[0003] For example, Chinese patent CN213773511U discloses a pile foundation model vertical load loading test device. The device includes a model box filled with foundation soil, a counterforce frame fixed on the upper end of the model box, a first vertical loading device arranged at one end of the counterforce frame, and a second vertical loading device arranged at the middle of the side adjacent to the first vertical loading device. The model box on the side of the second vertical loading device is a transparent panel. However, the above-mentioned device has first and second vertical loading devices, but lacks an effective adjustment mechanism to ensure that the load force can be uniformly distributed on the model pile, which may cause uneven loading for different types of models, especially models with different sizes or shapes, thereby affecting the accuracy of test results.

[0004] At present, there is no effective solution to the problems in the related art. UTILITY MODEL CONTENTS

[0005] To overcome the above technical problems existing in the prior art, the utility model provides a hydraulic load test loading device.

[0006] Therefore, the utility model adopts the following specific technical solutions:

[0007] A hydraulic load test loading device includes a support seat, a test model box is arranged at the top end of the support seat, a support frame is arranged outside the test model box, the cross section of the support frame is inverted U-shaped structure, a load mechanism is arranged at the top end of the middle of the support frame, both side walls inside the support frame are provided with support plates, and a hydraulic telescopic rod one is arranged at the top end of the support plate.

[0008] Further, in order to realize the installation of the model, when the load test is carried out, the model required by the load can be installed in the inside of the test model box, and under the action of the hydraulic telescopic rod driving the adjusting plate to move, the adjusting of the installation space can be realized, so that the loading test of different test models can be realized, and the applicability of the loading device is improved, the two ends of the test model box are provided with openings, and the two ends of the inside of the test model box are provided with adjusting plates, and the four corners of one side of the adjusting plate are provided with guide rods penetrating the side wall of the test model box.

[0009] Further, in order to realize the loading of the model, the vertical force state simulation of the model installed in the inside of the test model box can be realized through the hydraulic telescopic rod two, the stress state in actual use is simulated, the stability and controllability of the hydraulic system make the load application more accurate and reliable, and the load mechanism comprises the hydraulic telescopic rod two arranged at the top end of the support frame, the piston rod bottom end of the hydraulic telescopic rod two penetrates the inside top end of the support frame and is provided with a shell, the middle part in the shell is provided with a roller shaft, one end of the roller shaft is provided with a motor, and the output shaft of the motor penetrates the inner wall of the shell and is connected with one end of the roller shaft; a plurality of sliding blocks are arranged in the inside bottom end of the shell, the bottom end of the sliding block is provided with a long rod, and the two ends of the long rod bottom end are provided with load pressing plates; the two ends of the top end of the shell are provided with guide rods two penetrating the top end of the support frame.

[0010] Further, in order to make the load more uniformly distributed to the model, the distance between the load pressing plates can be adjusted conveniently through the rotation of the roller shaft driven by the motor, so that the model of different sizes can be applied, and the flexibility of the load test is greatly improved, a plurality of cam grooves are arranged on the outer side of the roller shaft, the plurality of cam grooves are symmetrically arranged with the center line of the roller shaft as the axis of symmetry, and the inclination angle of the cam groove gradually increases along the middle part of the roller shaft to the end part direction of the roller shaft; the cross section of the sliding block is in the shape of a work, and the middle part of the top end of the sliding block is provided with a cam follower matched with the cam groove; the cross section of the load pressing plate is in a triangular structure, and the two groups of load pressing plates located at the bottom end of the same long rod are centrally symmetrically arranged.

[0011] The beneficial effects of the utility model are as follows:

[0012] 1、The utility model results scientific and novel, utilizes hydraulic loading to provide very accurate force control, can realize the stable and adjustable load applied to the test object, helps to reduce the error and interference in the test process, improves the reliability of the test result, and provides reliable support for the mechanical test.

[0013] 2、By setting the test model box, thereby realize the installation of the model, in the load test, can be installed in the test model box inside the model needs load, and under the action of hydraulic telescopic rod one driven adjusting plate moves, can realize the adjustment of the installation space, can realize the loading test of different test model, improve the applicability of the loading device.

[0014] 3、By setting the load mechanism, thereby realize the loading of the model, through the hydraulic telescopic rod two can be installed in the test model box inside the model vertical force state simulation, simulation of the actual use of stress state, the stability and controllability of the hydraulic system makes the load more accurate and reliable, at the same time, also can make the load can be more evenly distributed to the model, through the motor drive roller rotation, can conveniently adjust the spacing between the load pressing plate, in turn can be applicable to different size model, make the flexibility of load test greatly improved. BRIEF DESCRIPTION OF DRAWINGS

[0015] In order to more clearly illustrate the technical scheme in the embodiments of the present application or prior art, the following will briefly introduce the drawings needed to be used in the embodiments, obviously, the drawings in the following description are only some embodiments of the present application, and for those skilled in the art, other drawings can also be obtained according to these drawings without creative labor.

[0016] Fig. 1 is a structure diagram of a hydraulic load test loading device according to an embodiment of the present application;

[0017] Fig. 2 is a structure diagram of a test model box in a hydraulic load test loading device according to an embodiment of the present application;

[0018] Fig. 3 is a structure diagram of a load mechanism in a hydraulic load test loading device according to an embodiment of the present application.

[0019] In the drawings:

[0020] 1, support seat; 2, test model box; 201, opening; 202, adjusting plate; 203, guide rod; 3, support frame; 4, load mechanism; 401, hydraulic telescopic rod two; 402, shell; 403, roller; 4031, cam groove; 404, motor; 405, sliding block; 4051, cam follower; 406, long rod; 407, load pressing plate; 408, guide rod two; 5, support plate; 6, hydraulic telescopic rod one. DETAILED DESCRIPTION

[0021] To further illustrate the embodiments, the utility model provides has the drawing, these drawings are the utility model disclosure content part, it mainly used to illustrate the embodiment, and can cooperate with the related description of the specification to explain the operation principle of the embodiment, cooperate with reference to these contents, the person skilled in the art should be able to understand other possible implementation ways and the advantages of the utility model, the components in the drawing are not drawn to scale, and similar component symbols are usually used to represent similar components.

[0022] According to the embodiment of the utility model, a hydraulic load test loading device is provided.

[0023] The utility model is further illustrated by combining with the specific embodiment and the drawing, as shown in the drawing, Figs. 1-3 The hydraulic load test loading device according to the embodiment of the utility model comprises a support seat 1, the top of the support seat 1 is provided with a test model box 2, the outer side of the test model box 2 is provided with a support frame 3, the cross section of the support frame 3 is an inverted U-shaped structure, and the top middle part of the support frame 3 is provided with a load mechanism 4 in a penetrating mode.

[0024] With the above technical scheme of the utility model, the utility model result is scientific and novel, a very accurate force control is provided by using hydraulic loading, stable and adjustable load can be applied to a test object, which helps to reduce errors and interference in the test process and improve the reliability of test results, and reliable support is provided for mechanical tests.

[0025] In one embodiment, for the test model box 2, the two end side walls of the test model box 2 are both provided with openings 201, and the two ends of the inside of the test model box 2 are both provided with adjusting plates 202. In addition, in specific applications, the adjusting plate 202 and the inner wall of the test model box 2 are sealingly arranged, the four corners of one side of the adjusting plate 202 are both provided with guide rods 203 penetrating the side wall of the test model box 2, and one side of the middle part of the adjusting plate 202 is fixedly connected with one end of the piston rod of the hydraulic telescopic rod one 6. Thus, the installation of the model is realized, the model requiring load can be installed in the inside of the test model box 2 when the load test is carried out, and the adjusting plate 202 can be moved under the action of the hydraulic telescopic rod one 6, so that the installation space can be adjusted, the load test of different test models can be realized, and the applicability of the loading device is improved.

[0026] In addition, it should be noted that the test model box 2 is made of transparent material, and the deformation and damage process of the model under the action of load can be clearly observed by the observer, which is very important for analyzing the stress performance and damage mechanism of the model. Different models can be installed in the inside of the test model box 2, including but not limited to the following models:

[0027] Civil engineering models: scaled or prototype models of bridges, building components (such as beams, columns, slabs), foundations, etc. These models can be used to study the mechanical behavior, deformation characteristics, and failure mechanisms of structures under loads.

[0028] Building material models: specimens or component models of concrete, steel, wood, composite materials, etc. These models can be used to test the mechanical properties of materials, such as compressive strength, tensile strength, elastic modulus, etc.

[0029] Structural engineering models: scaled models of frame structures, truss structures, shell structures, etc. These models can be used to study the overall performance of structural systems, such as stability, seismic performance, etc.

[0030] Geotechnical engineering models: specimens or simulation models of soil, rock, ground treatment, etc. These models can be used to study the mechanical properties of geotechnical materials and the interaction between foundations and structures.

[0031] The working principle of the test model box 2 is that the adjusting plate 202 can be moved inside the test model box 2 by the hydraulic telescopic rod 6, and under the action of the guide rod 203, the stability of the adjusting plate 202 during movement is ensured, thereby realizing the adjustment of the model installation space inside the test model box 2.

[0032] In one embodiment, for the load mechanism 4 described above, the load mechanism 4 comprises a hydraulic telescopic rod two 401 arranged at the top end of the support frame 3, the bottom end of the piston rod of the hydraulic telescopic rod two 401 penetrates the inside top end of the support frame 3 and is provided with a shell 402, the middle part in the shell 402 is provided with a roller shaft 403, one end of the shell 402 is provided with a motor 404, and the output shaft of the motor 404 penetrates the inner wall of the shell 402 and is connected with one end of the roller shaft 403; the inside bottom end of the shell 402 is provided with a plurality of sliding blocks 405, the bottom end of the sliding block 405 is provided with a long rod 406, and the bottom end of the long rod 406 is provided with load pressing plates 407 at both ends; both ends of the top end of the shell 402 are provided with guide rods two 408 penetrating the top end of the support frame 3, a plurality of cam grooves 4031 are opened on the outer side of the roller shaft 403, and the plurality of cam grooves 4031 are symmetrically arranged with the center line of the roller shaft 403 as the axis of symmetry, and the inclination angle of the cam groove 4031 gradually increases along the middle part of the roller shaft 403 to the end of the roller shaft 403; the cross section of the sliding block 405 is a I-shaped structure, and the top end of the sliding block 405 is provided with a cam follower 4051 matched with the cam groove 4031; the cross section of the load pressing plate 407 is a triangular structure, and the two groups of load pressing plates 407 at the bottom end of the same long rod 406 are centrally symmetrically arranged, so as to realize the loading of the model, the vertical force state simulation of the model installed in the test model box 2 can be realized through the hydraulic telescopic rod two 401, the stress state in actual use is simulated, the stability and controllability of the hydraulic system make the load application more accurate and reliable, and meanwhile, the load can be more uniformly distributed on the model, the distance between the load pressing plates 407 can be conveniently adjusted through the rotation of the roller shaft 403 driven by the motor 404, and thus different sizes of models can be applied, so that the flexibility of the load test is greatly improved.

[0033] The working principle of the load mechanism 4 is as follows: the roller shaft 403 is driven to rotate through the output shaft of the motor 404, then the sliding block 405 is driven to move under the cooperation of the cam groove 4031 and the cam follower 4051, so as to realize the equal interval adjustment between the sliding blocks 405, then the shell 402 is driven to move downward through the piston rod of the hydraulic telescopic rod two 401, then the sliding block 405 is driven to move downward, then the load pressing plate 407 is driven to move downward through the long rod 406 and load the model vertically, and the load test of the model is realized.

[0034] In order to facilitate the understanding of the above technical scheme of the utility model, the working principle or operation mode of the utility model in the actual process is described in detail below.

[0035] In actual application, first, according to the model to be measured, the model mounting space in the test model box 2 is adjusted through the hydraulic telescopic rod 6, then the model can be installed in the test model box 2, and then the installed model can be loaded by the load mechanism 4.

[0036] In conclusion, by means of the above technical scheme of the utility model, the utility model is scientific and novel in result, provides very accurate force control by using hydraulic loading, can realize stable and adjustable load on the test object, helps to reduce errors and interference in the test process, improves the reliability of the test result, provides reliable support for mechanical test. By arranging the test model box 2, the installation of the model is realized, the model requiring load can be installed in the test model box 2 during load test, and the adjustment of the installation space can be realized under the action of the adjustment plate 202 driven by the hydraulic telescopic rod 6, the load test on different test models can be realized, and the applicability of the loading device is improved. By arranging the load mechanism 4, the loading of the model is realized, the vertical force state simulation of the model installed in the test model box 2 can be realized through the hydraulic telescopic rod 402, and the stress state in actual use is simulated. The stability and controllability of the hydraulic system make the load application more accurate and reliable, and the load can be more uniformly distributed on the model, the distance between the load pressing plates 407 can be conveniently adjusted by driving the roller shaft 403 to rotate by the motor 404, and then different sizes of models can be applied, so that the flexibility of the load test is greatly improved.

[0037] In the utility model, unless otherwise explicitly specified and limited, the terms "mounting", "arrangement", "connection", "fixing", "screw connection" and the like should be understood broadly, for example, can be fixed connection, can also be detachable connection, or integrated; can be mechanical connection, can also be electrical connection; can be directly connected, can also be indirectly connected through an intermediate medium, can be the communication between two elements or the interaction relationship between two elements, unless otherwise explicitly limited, the above-mentioned terms in the utility model can be understood according to the specific meaning of the above-mentioned terms in the utility model according to the specific circumstances.

[0038] The above only describes the preferred embodiments of the utility model, and does not limit the utility model, and any modification, equivalent replacement, improvement, etc. within the spirit and principle of the utility model should be included in the protection scope of the utility model.

Claims

1. Hydraulic load test loading device comprising a support base (1), characterized in that, The top end of the support seat (1) is provided with a test model box (2), the outer side of the test model box (2) is provided with a support frame (3), the cross section of the support frame (3) is an inverted U-shaped structure, the top end of the support frame (3) is provided with a load mechanism (4). The inside of the support frame (3) is provided with a support plate (5) on both sides, and the top end of the support plate (5) is provided with a hydraulic telescopic rod (6).

2. The hydraulic load testing loading device of claim 1, wherein, Both ends of the test model box (2) are provided with an opening (201), and both ends of the test model box (2) are provided with an adjusting plate (202), and the four corners of one side of the adjusting plate (202) are provided with a guide rod (203) penetrating the side wall of the test model box (2).

3. The hydraulic load testing loading device of claim 2, wherein, The middle of one side of the adjusting plate (202) is fixedly connected with one end of the piston rod of the hydraulic telescopic rod (6).

4. The hydraulic load testing loading device of claim 1, wherein, The load mechanism (4) comprises a hydraulic telescopic rod (401) arranged at the top end of the support frame (3), the bottom end of the piston rod of the hydraulic telescopic rod (401) penetrates the inside top end of the support frame (3) and is provided with a shell (402), the middle of the shell (402) is provided with a roller shaft (403), one end of the shell (402) is provided with a motor (404), and the output shaft of the motor (404) penetrates the inner wall of the shell (402) and is connected with one end of the roller shaft (403); The inside bottom end of the shell (402) is provided with a plurality of sliding blocks (405), the bottom end of the sliding block (405) is provided with a long rod (406), and the bottom end of the long rod (406) is provided with a load pressing plate (407). Both ends of the top end of the shell (402) are provided with a guide rod (408) penetrating the top end of the support frame (3).

5. The hydraulic load testing loading device of claim 4, wherein, The outer side of the roller shaft (403) is provided with a plurality of cam grooves (4031), and a plurality of the cam grooves (4031) are symmetrically arranged with the center line of the roller shaft (403) as the axis of symmetry, and the inclination angle of the cam groove (4031) gradually increases along the middle part of the roller shaft (403) to the end part of the roller shaft (403).

6. The hydraulic load testing loading device of claim 5, wherein, The cross section of the sliding block (405) is a H-shaped structure, and the middle part of the top end of the sliding block (405) is provided with a cam follower (4051) matched with the cam groove (4031).

7. A hydraulic load testing loading device as claimed in claim 5 or 6, wherein, The cross section of the load pressing plate (407) is a triangular structure, and two groups of the load pressing plates (407) at the bottom end of the same long rod (406) are centrally symmetrically arranged.

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