CN210037206U - Elastic-like foundation beam type internal force self-balancing jack static load test bed - Google Patents
Elastic-like foundation beam type internal force self-balancing jack static load test bed Download PDFInfo
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- CN210037206U CN210037206U CN201921169610.9U CN201921169610U CN210037206U CN 210037206 U CN210037206 U CN 210037206U CN 201921169610 U CN201921169610 U CN 201921169610U CN 210037206 U CN210037206 U CN 210037206U
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Abstract
Discloses an elastic foundation beam-like internal force self-balancing jack static load test bed, which comprises a force transducer, two fixed beams, a connecting structure, a movable beam, a plurality of elastic components, an adjusting jack and a positioning piece, wherein the elastic components are arranged between the movable beam and one fixed beam to ensure that the movable beam is simulated as an elastic foundation beam, in the test process, the test load is transmitted among the test jack, the fixed cross beam, the elastic component, the movable cross beam, the connecting structure and the force transducer, so that the self-balance of the internal force of the test jack and the test bed is realized, the deformation characteristics of structural members with different rigidities are simulated by adjusting the rigidity and the arrangement of the elastic components, so that the test jack can have different strokes, therefore, the loading force values of the multiple jacks under different load conditions can be tested simultaneously, and the multiple jacks can be debugged quickly and accurately under static load.
Description
Technical Field
The utility model relates to a jack static test technical field, concretely relates to kind elasticity foundation beam type internal force self-balancing jack static test platform.
Background
The static load test bed is a device for testing the loading capacity of a test jack. The majority of the currently applied static load test beds of the jacks are single-frame or composite multi-frame rigid structures designed by adopting an internal force self-balancing principle, and main structural components of the static load test beds of the jacks consist of a top cover, a base and a vertical pull rod for connecting the top cover and the base. When a plurality of jacks are used for carrying out synchronous static loading on other structures, the jacks need to be grouped for use, for example, in the multipoint loading test process of a simply supported beam, the stroke and the loading force value of each jack are required to be monitored simultaneously, and the conventional static load test bed cannot simultaneously test the strokes of the jacks under different load conditions and cannot meet the test requirements.
SUMMERY OF THE UTILITY MODEL
In view of this, the utility model provides a static load test bench that can be applicable to a plurality of experimental jacks and carry out the loading debugging in step, through the rigidity of adjustment elastomeric element with arrange the deformation condition of the true structure of approximate simulation, can test each experimental jack's under the different loads loading power value and stroke simultaneously.
The utility model discloses class elasticity foundation beam type internal force self-balancing jack static test platform, include:
a load cell configured to be mounted on a test jack to measure a static load force of the test jack;
the two fixed cross beams comprise a lower cross beam and an upper cross beam, and the lower cross beam and the upper cross beam are parallel to each other;
the connecting structure is configured to fixedly connect the upper cross beam and the lower cross beam and form a closed force system structure with the upper cross beam and the lower cross beam;
a moving beam disposed between the two fixed beams, configured to be movable along the connecting structure;
a plurality of elastic members disposed between the movable beam and one of the fixed beams for simulating the movable beam as an elastic foundation beam;
the adjusting jack is configured to controllably adjust the initial position of the moving beam to provide an accommodating space for the test jack; and
a positioning member configured to position the elastic member at a predetermined position between the moving beam and one of the fixed beams;
wherein both ends of the test jack are respectively in contact with the movable beam and the fixed beam which is not in contact with the elastic component, and the movable beam is configured to move and/or deform with the loading of the test jack;
the stiffness and arrangement of the resilient member is used to simulate the deformation characteristics of structures of different stiffness.
Preferably, the test jack is located between the lower beam and the movable beam, and the elastic component is arranged between the movable beam and the upper beam through the positioning piece.
Preferably, the test jack is located between the movable cross beam and the upper cross beam, and the elastic component is arranged between the lower cross beam and the movable cross beam through the positioning piece.
Preferably, the elastic-like foundation beam type internal force self-balancing jack static load test bed further comprises a cross brace fixedly connected with the connecting structure;
one end of the adjusting jack is in contact with the cross brace.
Preferably, the load cell is mounted at one end of the test jack in contact with the fixed cross beam.
Preferably, the elastic-like ground beam type internal force self-balancing jack static load test bed further comprises a guide wheel connected with the moving beam, and the guide wheel is configured to roll along the surface of the connecting structure so as to enable the moving beam to move along the connecting structure.
Preferably, the connecting structures are symmetrically arranged on both sides of the fixed cross beam.
Preferably, the elastic-like foundation beam type internal force self-balancing jack static load test bed further comprises a support leg for supporting the elastic-like foundation beam type internal force self-balancing jack static load test bed.
Preferably, the upper cross beam is one of a truss, a section steel beam, a box girder or a beam and truss combined structure; the movable cross beam is specifically one of a truss, a section steel beam, a box girder or a beam and truss combined structure; the lower cross beam is specifically one of a truss, a section steel beam, a box girder or a beam and truss combined structure.
Preferably, the connecting structure is one of a steel plate, a section steel, a steel pipe or a steel strand, or a combination of the foregoing materials.
The static load test bed of the elastic-like foundation beam type internal force self-balancing jack of the embodiment of the utility model comprises a force cell, two fixed beams, a connecting structure, a movable beam, a plurality of elastic components, an adjusting jack and a positioning piece, wherein the elastic components are arranged between the movable beam and one fixed beam to ensure that the movable beam is simulated into an elastic foundation beam, in the test process, the test load is transmitted among the test jack, the fixed cross beam, the elastic component, the movable cross beam, the connecting structure and the force transducer, so that the self-balance of the internal force of the test jack and the test bed is realized, the deformation characteristics of structural members with different rigidities are simulated by adjusting the rigidity and the arrangement of the elastic components, so that the test jack can have different strokes, therefore, the loading force values of the multiple jacks under different load conditions can be tested simultaneously, and the multiple jacks can be debugged quickly and accurately under static load.
Drawings
The above and other objects, features and advantages of the present invention will become more apparent from the following description of the embodiments of the present invention with reference to the accompanying drawings, in which:
fig. 1 is a schematic perspective view of a static load test bed of an elastic-like ground beam type internal force self-balancing jack according to an embodiment of the present invention;
fig. 2 is a front view of the elastic-like ground beam type internal force self-balancing jack static load test bed of the embodiment of the invention;
fig. 3 is a side view of the elastic-like ground beam type internal force self-balancing jack static load test bed of the embodiment of the invention;
fig. 4 is a schematic structural diagram of a lower cross beam of the elastic-like foundation beam type internal force self-balancing jack static load test bed according to the embodiment of the present invention;
fig. 5 is a schematic view of the mounting structure of the movable cross beam and the positioning member of the elastic-like foundation beam type internal force self-balancing jack static load test bed according to the embodiment of the present invention;
fig. 6 is a schematic view of the mounting structure of the upper cross beam and the positioning member of the elastic-like ground beam type internal force self-balancing jack static load test bed according to the embodiment of the present invention;
fig. 7 is a schematic positioning diagram of an elastic component of the elastic-like ground beam type internal force self-balancing jack static load test bed according to the embodiment of the present invention;
fig. 8 is a schematic view of the mounting structure of the support leg, the connecting structure and the cross brace of the elastic-like ground beam type internal force self-balancing jack static load test bed according to the embodiment of the present invention;
wherein: 1-a force sensor; 2-fixing the cross beam; 21-a lower cross beam; 22-upper beam; 23-side plate; 3-a linking structure; 4-moving the beam; 5-an elastic member; 6-adjusting the jack; 7-a positioning member; 81-horizontal support; 82-a guide wheel; 83-a foot; 9-test jack.
Detailed Description
The present invention will be described below based on examples, but the present invention is not limited to only these examples. In the following detailed description of the present invention, certain specific details are set forth in detail. It will be apparent to those skilled in the art that the present invention may be practiced without these specific details. Well-known methods, procedures, components and circuits have not been described in detail so as not to obscure the present invention.
Further, those of ordinary skill in the art will appreciate that the drawings provided herein are for illustrative purposes and are not necessarily drawn to scale.
Unless the context clearly requires otherwise, throughout the description and the claims, the words "comprise", "comprising", and the like are to be construed in an inclusive sense as opposed to an exclusive or exhaustive sense; that is, what is meant is "including, but not limited to".
In the description of the present invention, it is to be understood that the terms "first," "second," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. In addition, in the description of the present invention, "a plurality" means two or more unless otherwise specified.
Unless expressly stated or limited otherwise, the terms "mounted," "connected," "secured," and the like are intended to be inclusive and mean that, for example, they may be fixedly connected or detachably connected or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.
When an element or layer is referred to as being "on," "engaged to," "connected to" or "coupled to" another element or layer, it may be directly on, engaged, connected or coupled to the other element or layer or intervening elements or layers may be present. In contrast, when an element is referred to as being "directly on," "directly engaged to," "directly connected to" or "directly coupled to" another element or layer, there may be no intervening elements or layers present. Other words used to describe the relationship between elements should be interpreted in a similar manner (e.g., "between" and "directly between," "adjacent" and "directly adjacent," etc.). As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.
Spatially relative terms, such as "inner," "outer," "below," "lower," "above," "upper," and the like, are used herein for ease of description to describe one element or feature's relationship to another element or feature as illustrated in the figures. It will be understood that the spatially relative terms may be intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if the device in the figures is turned over, elements described as "below" or "beneath" other elements or features would then be oriented "above" the other elements or features. Thus, the example term "below" can encompass both an orientation of above and below. The device may be otherwise oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.
Fig. 1 is the utility model discloses class elasticity ground beam type internal force self-balancing jack static load test bench's spatial structure schematic diagram, fig. 2 is the utility model discloses a class elasticity ground beam type internal force self-balancing jack static load test bench's main view, fig. 3 is the utility model discloses class elasticity ground beam type internal force self-balancing jack static load test bench's side view. As shown in fig. 1-3, the device comprises a load cell 1, two fixed beams 2, a connecting structure 3, a movable beam 4, a plurality of elastic components 5, an adjusting jack 6 and a positioning piece 7. The fixed cross beams 2 comprise upper cross beams 22 and lower cross beams 21, the upper cross beams 22 and the lower cross beams 21 are fixedly connected through the connecting structures 3, the movable cross beams 4 are arranged between the two fixed cross beams 2, the elastic component 5 is arranged on a preset position between the movable cross beam 4 and one of the fixed cross beams 2 through the positioning piece 7, the test jack 9 is placed between the movable cross beam 4 and the other fixed cross beam 2, and the load cell 1 is arranged at one end, in contact with the fixed cross beam 2, of the test jack 9. By replacing the elastic components 5 with different rigidities and changing the arrangement mode of the elastic components 5, the deformation conditions of structural components with different rigidities can be simulated, and therefore static load capacity tests of different load conditions can be simultaneously carried out on a plurality of jacks.
Fig. 4 is a schematic structural diagram of the lower beam 21 of the elastic-like ground beam type internal force self-balancing jack static load test bed of the embodiment of the present invention. In the present embodiment, the elastic member 5 is provided between the upper beam 22 and the moving beam 4, and the test jack 9 is placed between the lower beam 21 and the moving beam 4. Alternatively, the lower cross member 21, the upper cross member 22 and the movable cross member 4 may be a truss, a box girder, a section girder or a girder composite structure. As shown in fig. 4, in the present embodiment, the lower beam 21 is a section steel beam, H-shaped steel is used, and reinforcing ribs and side plates 23 are arranged on two sides of a web of the H-shaped steel, and the side plates 23 are used for being fixedly connected with the connecting structure 3. In the embodiment, the side plate 23 and the connecting structure 3 are connected by bolts, and those skilled in the art may also adopt other fixing connection manners, such as welding, riveting, etc., to connect the lower beam 21 and the connecting structure 3 according to the actual situation.
Fig. 5 is a schematic view of the installation structure of the movable beam 4 and the positioning member 7 of the elastic-like foundation beam type internal force self-balancing jack static load test bed of the embodiment of the present invention. As shown in fig. 5, the movable beam 4 is a section steel beam, H-shaped steel is adopted, and reinforcing ribs are arranged on two sides of a web plate of the H-shaped steel. In this embodiment, the test bed further comprises guide wheels 82, and the guide wheels 82 are mounted on guide wheel brackets at two ends of the movable beam 4 and are symmetrically arranged at two ends of the web. The guide wheels 82 are in contact with the connecting structure 3, enabling the moving beam 4 to move smoothly along the connecting structure 3. The positioning elements 7 are fixed on a wing plate on one side of the movable beam 4 far away from the lower beam 21, and the positioning elements 7 are uniformly distributed on the wing plate. Alternatively, the positioning member 7 is cylindrical, and the elastic member 5 may be fitted over the outer circumference of the cylinder. Of course, other shapes and configurations of the positioning element 7 suitable for positioning the elastic element 5 can be devised by the person skilled in the art.
Fig. 6 is a schematic view of the installation structure of the upper cross beam 22 and the positioning member 7 of the elastic-like foundation beam type internal force self-balancing jack static load test bed according to the embodiment of the present invention. As shown in fig. 6, the upper cross member 22 is a section steel member, and has a structure substantially the same as that of the lower cross member 21, and is connected to the connecting structure 3 in the same manner. The positioning pieces 7 are fixed on the wing plates on the side of the upper beam 22 close to the movable beam 4, and the distribution positions correspond to the positioning pieces 7 on the movable beam 4.
Fig. 7 is a schematic positioning diagram of the elastic component 5 of the elastic-like ground beam type internal force self-balancing jack static load test bed according to the embodiment of the present invention, and fig. 7 shows an enlarged structure at a in fig. 1. As shown in fig. 7, the elastic member 5 can be maintained at a predetermined position in a test by fitting the elastic member 5 around the positioning member 7 fixed to the upper beam 22 and the moving beam 4, and at the same time, the elastic member 5 can be replaced and arranged by easily separating the elastic member 5 from the positioning member 7 by moving the moving beam 4 toward the lower beam 21. It should be clear to a person skilled in the art that the upper cross member 22, the movable cross member 4 and the lower cross member 21 do not necessarily have to adopt the same structure, but can alternatively adopt the same structure or a combination of several different structures according to the actual situation of the experiment.
In another embodiment, the elastic member 5 is disposed between the lower beam 21 and the moving beam 4, and the test jack 9 is placed between the upper beam 22 and the moving beam 4. Accordingly, the positioning member 7 is provided on the side of the lower beam 21 close to the moving beam 4 and the side of the moving beam 4 close to the lower beam 21.
Alternatively, the connecting structure 3 may be one of a steel plate, a section steel, a steel pipe, a steel strand, or a combination of the foregoing materials. In this embodiment, the connecting structure 3 is a steel plate, and two ends of the steel plate are connected to the side plates 23 on the upper cross beam 22 and the lower cross beam 21 respectively, and are perpendicular to the upper cross beam 22 and the lower cross beam 21. The upper beam 22, the lower beam 21 and the connecting structure 3 are fixedly connected to form a closed force system structure.
In this embodiment, the test stand further includes a cross brace 81 and a foot 83. Fig. 8 is a schematic view of the mounting structure of the support leg 83, the connecting structure 3 and the cross brace 81 of the elastic-like ground beam type internal force self-balancing jack static load test bed of the embodiment of the present invention. In the present embodiment, the legs 83 are triangular in shape to support the test bed, as shown in fig. 1, 3 and 8, but those skilled in the art can also adopt other structures suitable for stable support. Stabilizer blade 83 and connection structure 3's steel sheet fixed connection, include with connection structure 3 looks vertically bottom plate, both ends respectively with bottom plate and connection structure 3 fixed connection's first inclined supporting plate to and both ends respectively with the middle part of first inclined supporting plate and bottom plate fixed connection's second inclined supporting plate. In order to balance the stress of the test bed and provide stable support, the support legs 83 are symmetrically arranged on two sides of the test bed, and a plurality of support legs 83 are arranged at different positions of the test bed according to requirements.
The two ends of the cross brace 81 are respectively fixedly connected with the connecting structure 3, and the installation height is between the movable cross beam 4 and the fixed cross beam 2 contacted with the test jack 9 and is adapted to the stroke of the adjusting jack 6. The adjusting jack 6 is placed on the cross brace 81, and the movable beam 4 can be moved up and down along the connecting structure 3 by changing the stroke of the adjusting jack 6, so that the test jack 9 can be placed or taken down, the elastic member 5 can be arranged, and the like.
During testing, the testing jacks 9 are loaded, the movable beam 4 moves along the connecting structure 3, the elastic components 5 with different rigidities and the different arrangement modes of the elastic components 5 can simulate the deformation conditions of structural components with different rigidities, each testing jack 9 can have different strokes, and the force measuring sensor 1 can monitor the loading force value of each testing jack 9 in real time. In this embodiment, the test load transmission path is: the test jack 9, the movable cross beam 4, the elastic component 5, the upper cross beam 22, the connecting structure 3, the lower cross beam 21, the force transducer 1 and the test jack 9 realize self balance of internal force of the test jack 9 and a test bed, thereby reducing test errors. And the combination of the movable beam 4 and the elastic part 5 can simulate an elastic foundation beam, and accords with the actual stress condition of a structural part, so that test data more conforming to the reality can be obtained.
The static load test bed of the elastic-like foundation beam type internal force self-balancing jack of the embodiment of the utility model comprises a force cell, two fixed beams, a connecting structure, a movable beam, a plurality of elastic components, an adjusting jack and a positioning piece, wherein the elastic components are arranged between the movable beam and one fixed beam to ensure that the movable beam is simulated into an elastic foundation beam, in the test process, the test load is transmitted among the test jack, the fixed cross beam, the elastic component, the movable cross beam, the connecting structure and the force transducer, so that the self-balance of the internal force of the test jack and the test bed is realized, the deformation characteristics of structural members with different rigidities are simulated by adjusting the rigidity and the arrangement of the elastic components, so that the test jack can have different strokes, therefore, the loading force values of the multiple jacks under different load conditions can be tested simultaneously, and the multiple jacks can be debugged quickly and accurately under static load.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included within the protection scope of the present invention.
Claims (10)
1. The utility model provides a kind of elasticity foundation beam type internal force self-balancing jack static test platform which characterized in that includes:
a load cell (1) configured to be mounted on a test jack (9) to measure a static load force of the test jack (9);
the two fixed cross beams (2) comprise lower cross beams (21) and upper cross beams (22), and the lower cross beams (21) and the upper cross beams (22) are parallel to each other;
a connecting structure (3) configured to fixedly connect the upper cross beam (22) and the lower cross beam (21) and form a closed force system structure with the upper cross beam (22) and the lower cross beam (21);
a mobile cross-beam (4) arranged between the two fixed cross-beams (2) and configured to be movable along the connection structure (3);
a plurality of elastic members (5) arranged between the mobile beam (4) and one of the fixed beams (2) for simulating the mobile beam (4) as an elastic foundation beam;
an adjusting jack (6) configured to controllably adjust the initial position of the mobile beam (4) to provide a receiving space for the test jack (9); and
-a positioning element (7) configured to position said elastic means (5) in a predetermined position between said mobile cross-member (4) and one of said fixed cross-members (2);
wherein both ends of the test jack (9) are respectively in contact with the mobile cross beam (4) and the fixed cross beam (2) which is not in contact with the elastic component (5), the mobile cross beam (4) is configured to move and/or deform with the loading of the test jack (9);
the stiffness and arrangement of the resilient member (5) is such as to simulate the deformation characteristics of structures of different stiffness.
2. Elastic-like ground beam internal force self-balancing jack static load test bench according to claim 1, characterized in that the test jack (9) is located between the lower beam (21) and the moving beam (4), and the elastic member (5) is arranged between the moving beam (4) and the upper beam (22) by means of the spacer (7).
3. Elastic-like ground beam internal force self-balancing jack static load test bench according to claim 1, characterized in that the test jack (9) is located between the moving beam (4) and the upper beam (22), and the elastic member (5) is arranged between the lower beam (21) and the moving beam (4) through the positioning piece (7).
4. The elastic-like ground beam type internal force self-balancing jack static load test bed is characterized by further comprising a cross brace (81) fixedly connected with the connecting structure (3); one end of the adjusting jack (6) is in contact with the cross brace (81).
5. The elastic-like ground beam type internal force self-balancing jack static load test bench as claimed in claim 1, characterized in that the load cell (1) is installed at one end of the test jack (9) contacting with the fixed beam (2).
6. The elastic-like internally force self-balancing jack static test bench of claim 1, further comprising a guide wheel (82) connected to the moving beam (4), the guide wheel (82) being configured to roll along a surface of the connecting structure (3) to move the moving beam (4) along the connecting structure (3).
7. The elastic-like ground beam type internal force self-balancing jack static load test bench according to claim 1, characterized in that the connecting structures (3) are symmetrically arranged on both sides of the fixed cross beam (2).
8. The elastic-like ground beam type internal force self-balancing jack static test bench of claim 1, further comprising a support leg (83) for supporting the elastic-like ground beam type internal force self-balancing jack static test bench.
9. The elastic-like ground beam type internal force self-balancing jack static load test bed as claimed in claim 1, wherein the upper cross beam (22) is one of a truss, a section steel beam, a box beam or a beam and truss combined structure; the movable cross beam (4) is specifically one of a truss, a section steel beam, a box girder or a beam and truss combined structure; the lower cross beam (21) is specifically one of a truss, a section steel beam, a box girder or a beam and truss combined structure.
10. The elastic-like ground beam type internal force self-balancing jack static load test bed as claimed in claim 1, wherein the connecting structure (3) is one of steel plate, section steel, steel pipe or steel strand, or a combination of the foregoing materials.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921169610.9U CN210037206U (en) | 2019-07-23 | 2019-07-23 | Elastic-like foundation beam type internal force self-balancing jack static load test bed |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201921169610.9U CN210037206U (en) | 2019-07-23 | 2019-07-23 | Elastic-like foundation beam type internal force self-balancing jack static load test bed |
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| CN210037206U true CN210037206U (en) | 2020-02-07 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110220702A (en) * | 2019-07-23 | 2019-09-10 | 北京华横科技有限公司 | Class elastic foundation beam type internal force self-balancing jack static test bed |
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2019
- 2019-07-23 CN CN201921169610.9U patent/CN210037206U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110220702A (en) * | 2019-07-23 | 2019-09-10 | 北京华横科技有限公司 | Class elastic foundation beam type internal force self-balancing jack static test bed |
| CN110220702B (en) * | 2019-07-23 | 2024-04-16 | 北京华横科技有限公司 | Elastic foundation beam type internal force self-balancing jack static load test bed |
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