CN213956766U - Hydraulic constant-resistance large-deformation anchor rod stress and deformation monitoring device - Google Patents
Hydraulic constant-resistance large-deformation anchor rod stress and deformation monitoring device Download PDFInfo
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- CN213956766U CN213956766U CN202120298082.8U CN202120298082U CN213956766U CN 213956766 U CN213956766 U CN 213956766U CN 202120298082 U CN202120298082 U CN 202120298082U CN 213956766 U CN213956766 U CN 213956766U
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Abstract
The utility model provides a big deformation stock atress of fluid pressure type constant resistance and deformation monitoring devices, including pretension cylinder device, the similar stock body of rod, the constant resistance body sets up the bottom of the similar stock body of rod, pretension cylinder device sets up the upper end of the similar stock body of rod, pretension cylinder device is used for realizing the pretension of the similar stock body of rod to through monitoring storage oil pressure real-time supervision stock atress, the constant resistance body is used for providing the constant resistance of the similar stock body of rod, and through the internal stay cord formula displacement sensor monitoring constant resistance body displacement distance of constant resistance, and then measure the similar stock body of rod deformation length of storage. The utility model provides a big deformation stock atress of fluid pressure type constant resistance and deformation monitoring devices, simple structure, convenient to use, accessible control hydraulic pressure servo controller accurate control pretightning force and real-time supervision stock atress through stay cord formula displacement sensor monitoring stock deformation length, have improved the precision of physical model experiment monitoring.
Description
Technical Field
The utility model relates to a stock support technical field especially relates to a hydraulic pressure type constant resistance large deformation stock atress and deformation monitoring devices.
Background
The anchor rod is a main supporting form of a mine, the anchor rod gradually develops towards the deep part along with the mining of coal resources, under the environments of high stress, large deformation of soft rock and the like, due to the factors of insufficient tensile strength, poor shearing resistance and the like of the anchor rod, the common anchor rod is limited in the characteristics of the common anchor rod, the common anchor rod is difficult to adapt to the requirements of the support of the deep mine, the anchor rod is broken, the anchor rod and surrounding rock are pulled off, a grouting body is broken, a tray fails and the like are often generated, the safety of the mine is seriously affected, and the normal production of the mine is greatly challenged. At present, a plurality of novel anchor rods which are suitable for deep high stress and large soft rock deformation exist, wherein the constant-resistance large-deformation anchor rods are applied to deep mine support due to the characteristics of high constant resistance, large deformation, simple structure and the like, however, the stress and deformation characteristics of the anchor rods, the action mechanism and the working performance of anchor rod surrounding rocks in the constant-resistance large-deformation anchor rod support have many unknown points, and the phenomenon that the theory lags behind the application exists, so that the design of a hydraulic constant-resistance large-deformation anchor rod stress and deformation monitoring device for model experiments is necessary.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a big deformation stock atress of fluid pressure type constant resistance and deformation monitoring devices, simple structure, convenient to use, accessible control hydraulic servo controller accurate control pretightning force and real-time supervision stock atress through stay cord formula displacement sensor monitoring stock deformation length, have improved the precision of physical model experiment monitoring, have created the condition for carrying out the physical model research based on the big deformation stock of constant resistance is strutted.
In order to achieve the above object, the utility model provides a following scheme:
a hydraulic constant-resistance large-deformation anchor rod stress and deformation monitoring device comprises: the device comprises a pre-tightening oil cylinder device, a similar anchor rod body and a constant resistance body, wherein the constant resistance body is arranged at the bottom end of the similar anchor rod body, and the pre-tightening oil cylinder device is arranged at the upper end of the similar anchor rod body;
the pre-tightening oil cylinder device comprises a hydraulic servo controller, an oil cylinder outer sleeve, a piston and an oil cylinder inner sleeve, wherein the oil cylinder outer sleeve, the piston and the oil cylinder inner sleeve are hollow, the oil cylinder inner sleeve is arranged inside the oil cylinder outer sleeve, the piston is arranged between the oil cylinder inner sleeve and the oil cylinder outer sleeve, the piston vertically slides along the oil cylinder inner sleeve and the oil cylinder outer sleeve, a gap between the oil cylinder inner sleeve and the oil cylinder outer sleeve is divided into two oil chambers by the piston, the two oil chambers are respectively connected with two ends of the hydraulic servo controller and used for realizing pre-tightening of similar anchor rod bodies, and the similar anchor rod bodies penetrate through the pre-tightening oil cylinder device along the center of the pre-tightening oil cylinder device and are connected with the constant resistance body;
the constant resistance body comprises a constant resistance body inner sleeve, a constant resistance body outer sleeve, a sliding body, a pull rope type displacement sensor and a data real-time acquisition recorder, the constant resistance body inner sleeve and the constant resistance body outer sleeve are hollow, the constant resistance body inner sleeve is arranged at one end, close to the similar anchor rod body, of the inside of the constant resistance body outer sleeve, the pull rope type displacement sensor is arranged at the other end of the inside of the constant resistance body outer sleeve, the sliding body is arranged inside the constant resistance body inner sleeve, the similar anchor rod body penetrates through the constant resistance body outer sleeve and the constant resistance body inner sleeve and is connected with the sliding body, the sliding body slides in the constant resistance body inner sleeve to generate friction force for providing constant resistance force, the sliding body is connected with the pull rope type displacement sensor, and the pull rope type displacement sensor is connected with the data real-time acquisition recorder for monitoring and recording the sliding length.
Optionally, the cylinder outer sleeve, the piston and the cylinder inner sleeve are all cylindrical, a round hole for the piston to pass through is formed in the upper end of the cylinder outer sleeve, the piston is sleeved on the cylinder inner sleeve through the round hole, the upper end of the piston extends out of the constant-resistance body outer sleeve, the wall of the round hole at the upper end of the piston is tightly attached to the wall of the piston, the piston is prevented from being separated from the round hole, the inner wall of the bottom of the piston is tightly attached to the inner wall of the cylinder outer sleeve, the inner wall of the bottom of the piston is tightly attached to the outer wall of the cylinder inner sleeve, the piston vertically slides between the cylinder inner sleeve and the cylinder outer sleeve, the two oil chambers are respectively a cylinder working oil chamber and a cylinder pre-tightening working oil chamber, the upper end of the bottom of the piston is the cylinder working oil chamber, the lower end of the bottom of the piston is the cylinder pre-tightening working oil chamber, and the cylinder working oil chamber is connected with one end of the hydraulic servo controller, the hydraulic servo controller controls and monitors the oil pressure change of the oil cylinder pre-tightening working oil chamber and the oil cylinder working oil chamber to realize pre-tightening and stress monitoring of similar anchor rod bodies.
Optionally, the outer end of the oil cylinder working oil chamber is provided with an oil nozzle of the oil cylinder working oil chamber, the outer end of the oil cylinder pre-tightening working oil chamber is provided with an oil nozzle of the pre-tightening working oil chamber, and the oil nozzle of the oil cylinder working oil chamber and the oil nozzle of the pre-tightening working oil chamber are respectively connected with two ends of the hydraulic servo controller through oil pipes.
Optionally, the pre-tightening oil cylinder device further comprises a transition sleeve, an anchor ring, a component and a clamping piece, wherein the transition sleeve is arranged at the top of the piston, the anchor ring is arranged on the transition sleeve, the clamping piece is arranged on the anchor ring, the component is arranged at the bottom of the pre-tightening oil cylinder device, and the similar anchor rod body sequentially penetrates through the clamping piece, the anchor ring, the transition sleeve and the component.
Optionally, the constant resistance body inner sleeve and the constant resistance body outer sleeve are cylindrical, the shape of the sliding body is in a round table shape, one end with a small sliding body area faces the direction of the similar anchor rod body, the constant resistance body further comprises a displacement meter sliding body connecting screw rod, an anchor rod sliding body connecting screw rod and a connecting wire, the anchor rod sliding body connecting screw rod is arranged in the constant resistance body inner sleeve, and the displacement meter sliding body connecting screw rod is arranged at the constant resistance body outer sleeve and is far away from one end of the constant resistance body inner sleeve.
Optionally, the anchor rod sliding body connecting screw rod is arranged at one end, with a small area, of the sliding body and is connected with the similar anchor rod body, the displacement meter sliding body connecting screw rod is arranged at the other end of the sliding body and is connected with the pull rope of the pull rope type displacement sensor, one end of the connecting wire is connected with the pull rope type displacement sensor, and the other end of the connecting wire penetrates through the constant-resistance body outer sleeve to be connected with the data real-time acquisition recorder.
According to the utility model provides a concrete embodiment, the utility model discloses a following technological effect: the utility model provides a hydraulic pressure type constant resistance large deformation anchor rod atress and deformation monitoring devices, accessible control hydraulic servo controller accurate control pretightning force and real-time supervision anchor rod atress, through stay cord formula displacement sensor monitoring anchor rod deformation length, improved the precision of physical model experiment monitoring, created the condition for carrying out the physical model research based on constant resistance large deformation anchor rod support; the hydraulic servo controller is adopted to automatically control the pre-tightening oil cylinder device to perform real-time monitoring on pre-tightening and stress of the anchor rod, and the obtained data is accurate and reliable; the sliding length of the sliding body is monitored in real time through a stay cord type displacement sensor in the constant resistance body, the sliding length is the deformation length of the anchor rod, and the stay cord type displacement sensor is also connected with a data real-time acquisition recorder, records the monitored deformation length of the anchor rod in real time and is convenient to check; the pre-tightening oil cylinder device and the constant resistance body are both cylinders with hollow interiors, so that similar anchor rod bodies can conveniently penetrate through the pre-tightening oil cylinder device and the constant resistance body; the outer end of the oil cylinder working oil chamber is provided with an oil nozzle of the oil cylinder working oil chamber, and the outer end of the oil cylinder pre-tightening working oil chamber is provided with an oil nozzle of the pre-tightening working oil chamber, so that the hydraulic servo controller can be conveniently connected.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without inventive labor.
Fig. 1 is a schematic structural view of a stress and deformation monitoring device for a hydraulic constant-resistance large-deformation anchor rod according to an embodiment of the present invention;
FIG. 2 is a sectional view of the force and deformation monitoring device A-A for the hydraulic constant-resistance large-deformation anchor rod of the embodiment of the present invention;
FIG. 3 is a B-B sectional view of a device for monitoring the stress and deformation of a hydraulic constant-resistance large-deformation anchor rod according to an embodiment of the present invention;
fig. 4 is a C-C sectional view of a stress and deformation monitoring device for a hydraulic constant-resistance large-deformation anchor rod according to an embodiment of the present invention;
FIG. 5 is a D-D sectional view of a device for monitoring the stress and deformation of a hydraulic constant-resistance large-deformation anchor rod according to an embodiment of the present invention;
fig. 6 is a cross-sectional view of the E-E device for monitoring the stress and deformation of the hydraulic constant-resistance large-deformation anchor rod according to the embodiment of the present invention.
Reference numerals: 1. a clip; 2. an anchor ring; 3. a transition sleeve; 4. a hollow part of the oil cylinder; 5. an oil nozzle of an oil cylinder working oil chamber; 6. an oil pipe; 7. a piston; 8. an oil cylinder jacket; 9. an oil cylinder working oil chamber; 10. the oil cylinder pre-tensions a working oil chamber; 11. an oil cylinder inner sleeve; 12. the oil cylinder pre-tightens the oil nozzle of the working oil chamber; 13. a hydraulic servo controller; 14. a member; 15. similar anchor rod bodies; 16. a connecting wire; 17. the anchor rod sliding body is connected with a screw rod; 18. A slider; 19. a constant resistance body inner sleeve; 20. a constant resistance body coat; 21. the displacement meter sliding body is connected with the screw rod; 22. pulling a rope; 23. a constant resistance body hollow portion; 24. stay cord formula displacement sensor.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only 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 belong to the protection scope of the present invention.
The utility model aims at providing a big deformation stock atress of fluid pressure type constant resistance and deformation monitoring devices, simple structure, convenient to use, accessible control hydraulic servo controller accurate control pretightning force and real-time supervision stock atress through stay cord formula displacement sensor monitoring stock deformation length, have improved the precision of physical model experiment monitoring, have created the condition for carrying out the physical model research based on the big deformation stock of constant resistance is strutted.
In order to make the above objects, features and advantages of the present invention more comprehensible, the present invention is described in detail with reference to the accompanying drawings and the detailed description.
As shown in fig. 1-6, the embodiment of the utility model provides a big deformation stock atress of fluid pressure type constant resistance and deformation monitoring device, include: the device comprises a pre-tightening oil cylinder device, a similar anchor rod body 15 and a constant resistance body, wherein the constant resistance body is arranged at the bottom end of the similar anchor rod body 15, and the pre-tightening oil cylinder device is arranged at the upper end of the similar anchor rod body 15;
the pre-tightening oil cylinder device comprises a hydraulic servo controller 13, an oil cylinder outer sleeve 8, a piston 7 and an oil cylinder inner sleeve 11, wherein the oil cylinder outer sleeve 8, the piston 7 and the oil cylinder inner sleeve 11 are hollow, the oil cylinder inner sleeve 11 is arranged inside the oil cylinder outer sleeve 8, the piston 7 is arranged between the oil cylinder inner sleeve 11 and the oil cylinder outer sleeve 8, the piston 7 vertically slides along the oil cylinder inner sleeve 11 and the oil cylinder outer sleeve 8, a gap between the oil cylinder inner sleeve 11 and the oil cylinder outer sleeve 8 is divided into two oil chambers by the piston 7, the two oil chambers are respectively connected with two ends of the hydraulic servo controller 13 and used for realizing pre-tightening of a similar anchor rod body 15, and the similar anchor rod body 15 penetrates through the pre-tightening oil cylinder device along the center of an oil cylinder hollow part 4 of the pre-tightening oil cylinder device to;
the constant resistance body comprises a constant resistance body inner sleeve 19, a constant resistance body outer sleeve 20, a sliding body 18, a pull rope type displacement sensor 24 and a data real-time acquisition recorder, wherein the constant resistance body inner sleeve 19 and the constant resistance body outer sleeve 20 are hollow to form a constant resistance body hollow part 23, the constant resistance body inner sleeve 19 is arranged at one end, close to a similar anchor rod body 15, of the inner portion of the constant resistance body outer sleeve 20, the pull rope type displacement sensor 24 is arranged at the other end of the inner portion of the constant resistance body outer sleeve 20, the sliding body 18 is arranged in the inner portion of the constant resistance body inner sleeve 19, the similar anchor rod body 15 penetrates through the constant resistance body outer sleeve 20 and the constant resistance body inner sleeve 19 to be connected with the sliding body 18, friction force is generated in the constant resistance body inner sleeve 19 through the sliding body 18 to provide constant resistance force, the sliding body 18 is connected with the pull rope type displacement sensor 24, the pull rope type displacement sensor 24 is connected with the data real-time acquisition recorder, for monitoring and recording the slip length.
The oil cylinder outer sleeve 8, the piston 7 and the oil cylinder inner sleeve 11 are cylindrical, a round hole for the piston 7 to pass through is formed in the upper end of the oil cylinder outer sleeve 8, the piston 7 is sleeved on the oil cylinder inner sleeve 11 through the round hole, the upper end of the piston 7 extends out of the constant resistance body outer sleeve 8, the outer wall of the upper end of the piston 7 is tightly attached to the wall of the round hole for preventing the piston 7 from being separated, the outer wall of the bottom of the piston 7 is tightly attached to the inner wall of the oil cylinder outer sleeve 8, the inner wall of the bottom of the piston 7 is tightly attached to the outer wall of the oil cylinder inner sleeve 11 for realizing the vertical sliding of the piston 7 between the oil cylinder inner sleeve 11 and the oil cylinder outer sleeve 8, the two oil chambers are respectively an oil cylinder working oil chamber 9 and an oil cylinder pre-tightening working oil chamber 10, the upper end of the bottom of the piston 7 is the oil cylinder working oil chamber 9, and the lower end of the bottom of the piston 7 is the oil cylinder pre-tightening working oil chamber 10, the hydraulic servo controller is characterized in that the oil cylinder working oil chamber 9 is connected with one end of the hydraulic servo controller 13, the oil cylinder pre-tightening working oil chamber 10 is connected with the other end of the hydraulic servo controller 13, and the hydraulic servo controller 13 controls and monitors the oil pressure change of the oil cylinder pre-tightening working oil chamber 10 and the oil cylinder working oil chamber 9 to realize the pre-tightening and stress monitoring of the similar anchor rod body 15.
The outer end of the oil cylinder working oil chamber 9 is provided with an oil cylinder working oil chamber oil nozzle 5, the outer end of the oil cylinder pre-tightening working oil chamber 10 is provided with a pre-tightening working oil chamber oil nozzle 12, and the oil cylinder working oil chamber oil nozzle 5 and the pre-tightening working oil chamber oil nozzle 12 are respectively connected with two ends of the hydraulic servo controller 13 through oil pipes 6.
The pre-tightening oil cylinder device further comprises a transition sleeve 3, an anchor ring 2, a component 14 and a clamping piece 1, wherein the transition sleeve 3 is arranged at the top of the piston 7, the anchor ring 2 is arranged on the transition sleeve 3, the clamping piece 1 is arranged on the anchor ring 2, the component 14 is arranged at the bottom of the pre-tightening oil cylinder device, and the similar anchor rod body 15 sequentially penetrates through the clamping piece 1, the anchor ring 2, the transition sleeve 3 and the component 14.
The constant resistance body inner sleeve 19 and the constant resistance body outer sleeve 20 are both cylindrical, the shape of the sliding body 18 is in a round table shape, one end of the sliding body 18 with small area faces to the direction of the similar anchor rod body 15, the constant resistance body further comprises a displacement meter sliding body connecting screw rod 21, an anchor rod sliding body connecting screw rod 17 and a connecting wire 16, the anchor rod sliding body connecting screw rod 17 is arranged in the constant resistance body inner sleeve 19, and the displacement meter sliding body connecting screw rod 21 is arranged at one end, far away from the constant resistance body inner sleeve 19, of the constant resistance body outer sleeve 20.
The anchor rod sliding body connecting screw rod 17 is arranged at one end, with a small area, of the sliding body 18 and is connected with the similar anchor rod body 15, the displacement meter sliding body connecting screw rod 21 is arranged at the other end of the sliding body 18 and is connected with the pull rope 22 of the pull rope type displacement sensor 24, one end of the connecting wire 16 is connected with the pull rope type displacement sensor 24, and the other end of the connecting wire penetrates through the constant-resistance body outer sleeve 20 to be connected with the data real-time acquisition recorder.
The use process of the device is as follows: the method comprises the steps of firstly constructing a physical model, embedding a constant resistance body and a similar anchor rod body, installing a pre-tightening oil cylinder device on the similar anchor rod body after the physical model is constructed, pre-tightening the similar anchor rod body through the pre-tightening oil cylinder device, performing a physical model experiment after the pre-tightening work is completed, when the stress of the similar anchor rod body is larger than the set constant resistance, enabling a sliding body to keep constant resistance to slide in a constant resistance body sleeve, monitoring sliding displacement in real time by a pull rope type displacement sensor in the sliding process and recording the sliding displacement through a data real-time acquisition recorder, wherein the sliding displacement is the deformation length of the similar anchor rod body, and obtaining the stress data record of the similar anchor rod body by monitoring the oil pressure change of an oil chamber in real time by a hydraulic servo controller.
The utility model provides a hydraulic pressure type constant resistance large deformation anchor rod atress and deformation monitoring devices, accessible control hydraulic servo controller accurate control pretightning force and real-time supervision anchor rod atress, through stay cord formula displacement sensor monitoring anchor rod deformation length, improved the precision of physical model experiment monitoring, created the condition for carrying out the physical model research based on constant resistance large deformation anchor rod support; the hydraulic servo controller is adopted to automatically control the pre-tightening oil cylinder device to perform real-time monitoring on pre-tightening and stress of the anchor rod, and the obtained data is accurate and reliable; the sliding length of the sliding body is monitored in real time through a stay cord type displacement sensor in the constant resistance body, the sliding length is the deformation length of the anchor rod, and the stay cord type displacement sensor is also connected with a data real-time acquisition recorder, records the monitored deformation length of the anchor rod in real time and is convenient to check; the pre-tightening oil cylinder device and the constant resistance body are both cylinders with hollow interiors, so that similar anchor rod bodies can conveniently penetrate through the pre-tightening oil cylinder device and the constant resistance body; the outer end of the oil cylinder working oil chamber is provided with an oil nozzle of the oil cylinder working oil chamber, and the outer end of the oil cylinder pre-tightening working oil chamber is provided with an oil nozzle of the pre-tightening working oil chamber, so that the hydraulic servo controller can be conveniently connected.
The principle and the implementation of the present invention are explained herein by using specific examples, and the above description of the embodiments is only used to help understand the method and the core idea of the present invention; meanwhile, for the general technical personnel in the field, according to the idea of the present invention, there are changes in the concrete implementation and the application scope. In summary, the content of the present specification should not be construed as a limitation of the present invention.
Claims (6)
1. The utility model provides a hydraulic pressure type constant resistance large deformation stock atress and deformation monitoring devices which characterized in that includes: the device comprises a pre-tightening oil cylinder device, a similar anchor rod body and a constant resistance body, wherein the constant resistance body is arranged at the bottom end of the similar anchor rod body, and the pre-tightening oil cylinder device is arranged at the upper end of the similar anchor rod body;
the pre-tightening oil cylinder device comprises a hydraulic servo controller, an oil cylinder outer sleeve, a piston and an oil cylinder inner sleeve, wherein the oil cylinder outer sleeve, the piston and the oil cylinder inner sleeve are hollow, the oil cylinder inner sleeve is arranged inside the oil cylinder outer sleeve, the piston is arranged between the oil cylinder inner sleeve and the oil cylinder outer sleeve, the piston vertically slides along the oil cylinder inner sleeve and the oil cylinder outer sleeve, a gap between the oil cylinder inner sleeve and the oil cylinder outer sleeve is divided into two oil chambers by the piston, the two oil chambers are respectively connected with two ends of the hydraulic servo controller and used for realizing pre-tightening of similar anchor rod bodies, and the similar anchor rod bodies penetrate through the pre-tightening oil cylinder device along the center of the pre-tightening oil cylinder device and are connected with the constant resistance body;
the constant resistance body comprises a constant resistance body inner sleeve, a constant resistance body outer sleeve, a sliding body, a pull rope type displacement sensor and a data real-time acquisition recorder, the constant resistance body inner sleeve and the constant resistance body outer sleeve are hollow, the constant resistance body inner sleeve is arranged at one end, close to the similar anchor rod body, of the inside of the constant resistance body outer sleeve, the pull rope type displacement sensor is arranged at the other end of the inside of the constant resistance body outer sleeve, the sliding body is arranged inside the constant resistance body inner sleeve, the similar anchor rod body penetrates through the constant resistance body outer sleeve and the constant resistance body inner sleeve and is connected with the sliding body, the sliding body slides in the constant resistance body inner sleeve to generate friction force for providing constant resistance force, the sliding body is connected with the pull rope type displacement sensor, and the pull rope type displacement sensor is connected with the data real-time acquisition recorder for monitoring and recording the sliding length.
2. The device for monitoring the stress and deformation of the hydraulic constant-resistance large-deformation anchor rod according to claim 1, wherein the outer cylinder sleeve, the piston and the inner cylinder sleeve are all cylindrical, a round hole for the piston to pass through is formed in the upper end of the outer cylinder sleeve, the piston is sleeved on the inner cylinder sleeve through the round hole, the upper end of the piston extends out of the outer constant-resistance body sleeve, the wall of the round hole is tightly attached to the wall of the upper end of the piston for preventing the piston from falling off, the wall of the bottom of the piston is tightly attached to the inner wall of the outer cylinder sleeve, the wall of the bottom of the piston is tightly attached to the wall of the inner cylinder sleeve for realizing the vertical sliding of the piston between the inner cylinder sleeve and the outer cylinder sleeve, the two oil chambers are respectively an oil cylinder working oil chamber and an oil cylinder pre-tightening working oil chamber, and the upper end of the bottom of the piston is the oil cylinder working oil chamber, the lower extreme of piston bottom does hydro-cylinder pretension operating oil room, hydro-cylinder operating oil room connects the one end of hydraulic servo controller, hydro-cylinder pretension operating oil room connects the other end of hydraulic servo controller, hydraulic servo controller control and monitoring the pretension and the atress monitoring of similar stock body of rod are realized to the oil pressure change of hydro-cylinder pretension operating oil room and hydro-cylinder operating oil room.
3. The device for monitoring the stress and the deformation of the hydraulic constant-resistance large-deformation anchor rod according to claim 2, wherein an oil nozzle of the oil cylinder working oil chamber is arranged at the outer end of the oil cylinder working oil chamber, an oil nozzle of the pre-tightening working oil chamber is arranged at the outer end of the oil cylinder pre-tightening working oil chamber, and the oil nozzle of the oil cylinder working oil chamber and the oil nozzle of the pre-tightening working oil chamber are respectively connected with two ends of the hydraulic servo controller through oil pipes.
4. The device for monitoring the stress and deformation of the hydraulic constant-resistance large-deformation anchor rod according to claim 1, wherein the pre-tightening oil cylinder device further comprises a transition sleeve, an anchor ring, a member and a clamping piece, the transition sleeve is arranged at the top of the piston, the anchor ring is arranged on the transition sleeve, the clamping piece is arranged on the anchor ring, the member is arranged at the bottom of the pre-tightening oil cylinder device, and the rod body of the similar anchor rod sequentially penetrates through the clamping piece, the anchor ring, the transition sleeve and the member.
5. The device for monitoring the stress and deformation of the hydraulic constant-resistance large-deformation anchor rod according to claim 1, wherein the inner constant-resistance body sleeve and the outer constant-resistance body sleeve are both cylindrical, the sliding body is in a truncated cone shape, the end with the small area of the sliding body faces the direction of the similar anchor rod body, the constant-resistance body further comprises a displacement meter sliding body connecting screw rod, an anchor rod sliding body connecting screw rod and a connecting wire, the anchor rod sliding body connecting screw rod is arranged in the inner constant-resistance body sleeve, and the displacement meter sliding body connecting screw rod is arranged at the end, away from the inner constant-resistance body sleeve, of the outer constant-resistance body sleeve.
6. The device for monitoring the stress and the deformation of the hydraulic constant-resistance large-deformation anchor rod according to claim 5, wherein the anchor rod sliding body connecting screw is arranged at one end, with a small area, of the sliding body and is connected with the similar anchor rod body, the displacement meter sliding body connecting screw is arranged at the other end of the sliding body and is connected with the pull rope of the pull rope type displacement sensor, one end of the connecting wire is connected with the pull rope type displacement sensor, and the other end of the connecting wire penetrates through the constant-resistance body outer sleeve and is connected with the data real-time acquisition recorder.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202120298082.8U CN213956766U (en) | 2021-02-02 | 2021-02-02 | Hydraulic constant-resistance large-deformation anchor rod stress and deformation monitoring device |
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| CN202120298082.8U CN213956766U (en) | 2021-02-02 | 2021-02-02 | Hydraulic constant-resistance large-deformation anchor rod stress and deformation monitoring device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116558969A (en) * | 2023-04-11 | 2023-08-08 | 温州隽宇建设工程质量检测有限公司 | Anchor rod anti-pulling performance detection device |
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2021
- 2021-02-02 CN CN202120298082.8U patent/CN213956766U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116558969A (en) * | 2023-04-11 | 2023-08-08 | 温州隽宇建设工程质量检测有限公司 | Anchor rod anti-pulling performance detection device |
| CN116558969B (en) * | 2023-04-11 | 2024-04-02 | 温州隽宇建设工程质量检测有限公司 | Anchor rod anti-pulling performance detection device |
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