CN218726075U - Test device of shield tunnel assembled hangers - Google Patents
Test device of shield tunnel assembled hangers Download PDFInfo
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- CN218726075U CN218726075U CN202222756831.4U CN202222756831U CN218726075U CN 218726075 U CN218726075 U CN 218726075U CN 202222756831 U CN202222756831 U CN 202222756831U CN 218726075 U CN218726075 U CN 218726075U
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- shearing
- hanger
- shield tunnel
- hangers
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Abstract
The utility model discloses a test device of shield tunnel assembled hangers, which comprises a hanger device, a shearing clamp device and a supplementary clamp device; the hanger device comprises a hanger, a base, a fastening bolt, a fastening nut, a bottom plate, a T-shaped bolt, a channel and a T-shaped plate, wherein the hanger is arranged on the base and is integrally formed with the base; the shearing fixture device comprises a balancing weight, a shearing base and a connecting block, wherein the balancing weight and the connecting block are arranged on the shearing base; the supplementary clamping device comprises a drawing base and a fixing device.
Description
Technical Field
The utility model relates to a shield tunnel field especially relates to a test device of shield tunnel assembled hangers.
Background
The construction of urban underground rail transit in China is mainly based on a shield method. The shield method as the underground excavation method has the characteristics of small influence on the surrounding environment, short construction period and the like. When the shield method is used for underground track traffic construction, after the shield tunnel segment is installed, an evacuation platform, electromechanical equipment and pipelines are required to be installed on the segment structure, so that the requirements of evacuation, ventilation, fire protection and the like of the shield tunnel are met. How to safely and quickly realize the effective installation of electromechanical equipment and pipelines in the shield tunnel depends on the connecting structure technology and relates to the safe and efficient operation of subway traffic. The hangers in the shield method are used as important components for connecting the duct piece and the channel, and have higher requirements on various performances, so that the tests on various performances of the hangers are necessary. The testing device in the prior art mostly adopts a special-shaped component for testing, the structure is complex, and in the drawing test, because the inclined plane direction of the fixing lugs is not in the same straight line with the actual stress direction, and the position of the centroid is unknown, the testing device does not belong to an axis tensile test, and can not directly use a universal testing machine to perform the drawing test like a conventional component. The shearing action form and the fixing problem of the hanger component need to be considered in a shearing experiment, and the special-shaped structure of the hanger component cannot be directly fixed on a universal testing machine like a conventional component, so that the loading experiment difficulty is high.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the problem that the loading test is difficult is done to the dysmorphism component, provide a test device of shield tunnel assembled hangers, through drawing experiment and shear test to the hangers on this device to research hangers mechanical properties.
In order to achieve the above object, the utility model provides a following technical scheme: a test device for shield tunnel assembled hangers comprises a hanger device, a shearing clamp device and a supplementary clamp device; the hanger device comprises a hanger, a base, a fastening bolt, a fastening nut, a bottom plate, a T-shaped bolt, a channel and a T-shaped plate, wherein the hanger is arranged on the base and is integrally formed with the base; the shearing fixture device comprises a balancing weight, a shearing base and a connecting block, wherein the balancing weight and the connecting block are both arranged on the shearing base; the supplementary fixture device comprises a drawing base and a fixing device, wherein the fixing device is of a cylindrical structure and welded on the drawing base, and the drawing base is welded on one side of the connecting block.
Preferably, a gasket is further arranged between the bottom plate and the T-shaped plate.
Preferably, the included angle between the inclined plane and the shearing base ranges from 30 degrees to 60 degrees.
Preferably, balancing weight, shearing base and connecting block are integrated into one piece structure.
The utility model discloses following beneficial effect has: the utility model discloses a draw experimental and shear test to the hangers on this device to research hangers mechanical properties, the used part majority of whole device simple structure is general subassembly and easy equipment, can reach the technological effect of testing hangers mechanical properties fast.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention, and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.
Fig. 1 is a shield tunnel assembled suspension loop test device 1 of the present invention;
fig. 2 is a shield tunnel assembled suspension loop test device 2 of the present invention;
FIG. 3 is a schematic view of the combination structure of the hanging lug, the base, the fastening bolt and the bottom plate of the present invention;
FIG. 4 is a schematic view of the structure of the suspension loop and the base of the present invention;
fig. 5 is a front view of the fastening bolt of the present invention;
fig. 6 is a schematic structural diagram of the bottom plate of the present invention;
fig. 7 is a schematic diagram of the T-shaped plate structure of the present invention;
fig. 8 is a front view of the T-bolt of the present invention;
fig. 9 is a front view of the ear hanging device of the present invention.
In the figure: 1-hanging a lug; 2-a gasket; 3-M30 nut; 4-a base; 5-a channel; 6-a bottom plate; 7-fastening a nut; 8-matching gaskets; 9-hanging a long round hole; 10-fastening bolts; 11-bolt hole fastening; 12-a fastening through hole; 13-T bolt; 14-T type board; 15-a counterweight block; 16-a shear base; 17-connecting blocks; 18-longitudinal connecting bolts; 19-pulling the base; 20-fixing means.
Detailed Description
To make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the drawings of the embodiments of the present invention are combined to clearly and completely describe the technical solutions of the embodiments of the present invention, and obviously, the described embodiments are some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work all belong to the protection scope of the present invention. Thus, the following detailed description of the embodiments of the present invention, presented in the accompanying drawings, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work all belong to the protection scope of the present invention.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and to simplify the description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present invention.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.
In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.
In the present disclosure, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact between the first and second features, or may comprise contact between the first and second features not directly. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.
Examples
The following is only the preferred embodiment of the present invention, the protection scope of the present invention is not limited to the following embodiments, all the technical solutions belonging to the present invention belong to the protection scope of the present invention.
Referring to the attached figures 1-4 of the specification, the test device for the shield tunnel assembly type hangers comprises a hanger device, a shearing clamp device and a supplementary clamp device.
Referring to the attached drawings 3-9 of the specification, the hanger device comprises a hanger 1, a base 4, a fastening bolt 11, a fastening nut 7, a bottom plate 6, a T-shaped bolt 13, a channel 5 and a T-shaped plate 14, wherein the hanger 1 is arranged on the base 4 and integrally formed with the base 4, the base 4 is connected to the bottom plate 6 through the fastening bolt 11, a hanger slotted hole 9 is formed in the hanger 1, a groove is formed below the base 4, the bottom plate and the groove form a cavity, the channel 5 is arranged in the cavity in a penetrating manner, a fastening bolt hole 11 corresponding to the fastening bolt 10 and a corresponding fastening through hole 12 are formed in the bottom plate 4, the fastening bolt 10 is arranged in the fastening bolt hole 11 and the fastening through hole 12 in a penetrating manner, the fastening nut 7 is screwed on the outer side of the bottom plate 6, the T-shaped bolt 13 is arranged in the fastening through hole 12 in the bottom plate 6 and clamps the T-shaped bolt in the channel 5, and the T-shaped plate 14 is arranged on the T-shaped bolt 13 and screws the fastening nut 7. A gasket 2 is also arranged between the bottom plate 6 and the T-shaped plate 14.
Shearing fixture device includes the counter weight, 15, cuts base 16 and connecting block 17, counter weight 15 and connecting block 17 all set up on cutting base 16 and three integrated into one piece, connecting block 17 is provided with an inclined plane for cutting base 16, be provided with a longitudinal connecting bolt 18 on the inclined plane perpendicularly, hangers slotted hole 9 is located on the longitudinal connecting bolt 18.
The supplementary fixture device comprises a drawing base 19 and a fixing device 20, wherein the fixing device 20 is of a cylindrical structure and is welded on the drawing base 19, and the drawing base 19 is welded on one side of the connecting block 17.
Right the utility model discloses the device that carries out mechanical test and adopt does respectively: the device comprises a separated hydraulic jack, a DH3816N data acquisition instrument, a spoke tension and pressure sensor, a digital display instrument, an emergency power supply, a YHD type displacement sensor (displacement meter), a T-shaped bolt, a T-shaped plate and the like.
The installation and operation steps of the drawing test equipment are as follows:
(1) And (3) mounting a test piece: and after the lug winged lug is adjusted to the designed position, locking the fastening nut to install the lug on the loading platform. Then the special small groove is inserted into the hanging lug cavity and tightly attached to the hanging lug cavity, and the groove and the hanging lug need to be horizontally symmetrical along the axis. And (3) putting the T-shaped head of the T-shaped bolt into the channel, moving to the central position, and rotating by 90 degrees clockwise, so that the groove line at the tail part of the T-shaped bolt is vertical to the axis of the channel. Then, a hole in the middle of the hanger pressing plate is sleeved on the T-shaped bolt, the hanger and the pressing plate are connected at the four corners through 4M 8x40 bolts, and the five bolts are fastened by nuts respectively. And finally, installing a T-shaped plate, screwing a threaded hole in the middle of the T-shaped plate into the T-shaped bolt to be tightest, and ensuring the force transmission steel plate to be horizontal. The load transmission mode is that two jacks jack up two ends of the T-shaped plate from two sides, and then the two jacks transmit force to the T-shaped bolt in the middle to form the pull loading of the hanging lug.
(2) Data acquisition: before data acquisition is carried out, whether DH3816N data acquisition equipment can work normally is detected. After the separated jack is symmetrically placed at a fixed position, the spoke pulling pressure sensors are placed at the bottom of the jack and close to one side of the force transmission steel plate, and each spoke pulling pressure sensor adopts an independent digital display instrument. And the DH3816N data acquisition instrument is connected with a strain gauge wire and a displacement meter wire, and strain and displacement data of the hangers are read out.
(3) Loading and observing: the two jacks adopt a symmetrical loading mode, are independently read and recorded, are loaded to 50KN or are damaged by a component in a 5 KN/time mode, and after the load is held for 5min after each loading, the displacement of the displacement meter is read and the next stage of load is applied.
The installation operation steps of the shear test equipment are as follows:
(1) And (3) mounting a test piece: the mounting mode of the hangers, the channel and the T-shaped plate is the same as that of the drawing test. The load transmission mode is that a universal testing machine applies load to the T-shaped plate in the vertical direction, force is transmitted to the T-shaped bolt through the T-shaped plate, the T-shaped bolt is transmitted to the channel, and the channel is transmitted into the ear hanging cavity, so that the shearing test effect on the ear hanging is achieved.
(2) Data acquisition: the shearing test also adopts a DH3816N data acquisition instrument to detect data such as displacement, strain and the like, so that before carrying out data acquisition, whether DH3816N data acquisition equipment can normally work is detected. In the loading process, the data such as the size of the applied load, a shear test curve and the like can be directly read through a universal testing machine. And a DH3816N data acquisition instrument is connected with a strain gauge wire and a displacement meter wire, and strain and displacement data of the hangers are read out.
(3) Loading and observing: and directly reading and recording data by adopting a unidirectional loading mode of a universal testing machine, loading the data to 50KN or destroying a component in a 5 KN/time mode, reading the displacement of the displacement meter after the loading is finished for 5min each time, and applying the next-stage load.
The above embodiments are only for illustrating the technical concept and features of the present invention, and the purpose of the embodiments is to enable those skilled in the art to understand the contents of the present invention and implement the present invention, which cannot limit the protection scope of the present invention. All equivalent changes and modifications made according to the spirit of the present invention should be covered by the protection scope of the present invention.
Claims (4)
1. The test device for the shield tunnel assembly type hangers is characterized by comprising a hanger device, a shearing clamp device and a supplementary clamp device; the hanger device comprises a hanger, a base, a fastening bolt, a fastening nut, a bottom plate, a T-shaped bolt, a channel and a T-shaped plate, wherein the hanger is arranged on the base and is integrally formed with the base; the shearing fixture device comprises a balancing weight, a shearing base and a connecting block, wherein the balancing weight and the connecting block are both arranged on the shearing base; the supplementary fixture device comprises a drawing base and a fixing device, wherein the fixing device is of a cylindrical structure and welded on the drawing base, and the drawing base is welded on one side of the connecting block.
2. The testing device of the shield tunnel assembly hangers of claim 1 further comprising a spacer disposed between the bottom plate and the T-shaped plate.
3. The test device of the shield tunnel assembled hangers of claim 1 wherein the included angle between the bevel and the shear mount is in the range of 30-60 degrees.
4. The testing device of the shield tunnel assembly type hangers of claim 1, wherein the balancing weight, the shearing base and the connecting block are of an integrally formed structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222756831.4U CN218726075U (en) | 2022-10-19 | 2022-10-19 | Test device of shield tunnel assembled hangers |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222756831.4U CN218726075U (en) | 2022-10-19 | 2022-10-19 | Test device of shield tunnel assembled hangers |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218726075U true CN218726075U (en) | 2023-03-24 |
Family
ID=85587996
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222756831.4U Active CN218726075U (en) | 2022-10-19 | 2022-10-19 | Test device of shield tunnel assembled hangers |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218726075U (en) |
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2022
- 2022-10-19 CN CN202222756831.4U patent/CN218726075U/en active Active
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