CN213579860U - Endoscopic scanning photoelastic instrument for tunnel model - Google Patents
Endoscopic scanning photoelastic instrument for tunnel model Download PDFInfo
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- CN213579860U CN213579860U CN202022870202.5U CN202022870202U CN213579860U CN 213579860 U CN213579860 U CN 213579860U CN 202022870202 U CN202022870202 U CN 202022870202U CN 213579860 U CN213579860 U CN 213579860U
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Abstract
The utility model belongs to the technical field of tunnel model simulation experiment, a peep formula scanning photoelastic appearance in tunnel model is disclosed, include: the device comprises a travelling device, a rotating device, a photoelastic observation device, a lens adjusting device and an electric control system; the rotating device is fixed on the traveling device, and the photoelastic observation device and the lens adjusting device are fixed on the rotating device; the electric control system is connected with the advancing device, the rotating device, the photoelastic observation device and the lens adjusting device; the photoelastic observation device includes: a polarizing mirror assembly and an analyzer assembly; the polarizing mirror assembly and the analyzer assembly are fixed on the rotating device and are arranged according to the light path of the reflective photoelastic meter; the lens adjusting device is respectively connected with the observation lenses of the polarizing mirror assembly and the polarization detecting mirror assembly in a transmission way. The utility model provides an endoscopic scanning photoelastic appearance in tunnel model can realize carrying out the high accuracy observation with photoelastic appearance cooperation rock mechanics three-dimensional physical simulation experiment system, obtains the ideal picture, simplifies the observation operation.
Description
Technical Field
The utility model relates to a tunnel model simulation experiment technical field, in particular to peep formula scanning photoelastic appearance in tunnel model.
Background
The existing rock mechanics three-dimensional physical simulation experiment system has imperfect observation means and is not intuitive and accurate in stress-strain reaction of structures such as lining. In the prior art, a photoelastic instrument is often used for being matched with instruments such as a rock mechanics three-dimensional physical simulation experiment system, so that the accuracy and the reliability of observation are improved. However, the optical properties of the photoelastic material cannot be observed inside an opaque material such as concrete. The existing reflection type photoelastic meter is relatively large in size and fixed in clamping direction, the outer surface of a test piece is generally fixedly observed, an observation means for the inner surface of the test piece is lacked, and a detection surface is mainly a plane and is lacked in a curved surface detection means. If the reflection type photoelastic meter is arranged in the simulation tunnel, on one hand, the volume is larger, a fixing device is lacked, and the imaging effect is not ideal; on the other hand, the tunnel length is long, and the instrument needs to be frequently moved when the whole inner surface of the tunnel needs to be observed, so that the observation time is too long, the procedure is complicated, and the observation precision is further influenced.
SUMMERY OF THE UTILITY MODEL
The utility model provides an peep formula scanning photoelastic appearance in tunnel model solves and is used for the three-dimensional physical simulation experiment system of rock mechanics with the photoelastic appearance among the prior art and observes time measuring, is difficult to obtain the high accuracy in that the test piece tunnel is downthehole, and ideal effect becomes the picture, and complex operation loaded down with trivial details technical problem.
In order to solve the technical problem, the utility model provides an peep formula scanning photoelastic appearance in tunnel model, include: the device comprises a travelling device, a rotating device, a photoelastic observation device, a lens adjusting device and an electric control system;
the rotating device is fixed on the traveling device, and the photoelastic observation device and the lens adjusting device are fixed on the rotating device;
the electronic control system is connected with the advancing device, the rotating device, the photoelastic observation device and the lens adjusting device;
the photoelastic observation device includes: a polarizing mirror assembly and an analyzer assembly;
the polarizing mirror assembly and the polarization analyzing mirror assembly are fixed on the rotating device and are arranged according to the light path of the reflective photoelastic meter;
the lens adjusting device is respectively connected with the observation lenses of the polarizing mirror assembly and the polarization detecting mirror assembly in a transmission way.
Further, the traveling device includes: a traveling body and a traveling wheel set;
the walking wheel set is fixed on the traveling main body;
the rotating device is fixed on the traveling body.
Further, the traveling body includes: the device comprises a first shell, a slide rail, a second shell and a slide carrier;
the slide rail is respectively connected with the first shell and the second shell, and the carrier can be fixed on the slide rail in a sliding manner;
the rotating device is fixed on the carrier;
the first shell and the second shell are both provided with the walking wheel set.
Further, the first shell and the second shell are cylindrical shell structures;
the slide rail is arranged on a central axis of the cylindrical shell structure.
Further, the rotating device includes: the device comprises a rotating base, a differential gear set and a rotating carrier;
the rotating base is fixed on the sliding carrier, and the rotating carrier is rotatably fixed on the rotating base through the differential gear set;
wherein, the rotation carrier is rotationally sleeved outside the slide rail.
Further, the rotary carrier includes: a rotating cylinder and an internal gear;
the internal gear is fixed on the inner wall of the rotating cylinder and is meshed with the differential gear;
the rotating cylinder is rotatably sleeved outside the sliding rail.
Further, the polarizer assembly includes: the laser beam splitter comprises a polarizing lens barrel, a first 1/4 wave plate, a polarizing lens and a laser lamp set;
the first end of the polarizing lens barrel is fixed on the rotating device, the laser lamp group is fixed at the first end of the polarizing lens barrel, and the polarizing lens and the first 1/4 wave plate are arranged in the polarizing lens barrel along the projection direction of the laser lamp group;
the analyzer assembly comprises: the analyzer comprises an analyzer tube, a second 1/4 wave plate, an analyzer and a camera;
the first end of the analyzing lens barrel is fixed on the rotating device, the camera is fixed at the first end of the analyzing lens barrel, the second 1/4 wave plate is fixed at the second end of the analyzing lens barrel, and the analyzing lens is arranged between the second 1/4 wave plate and the camera;
the polarizing lens barrel and the polarization analyzing lens barrel are arranged side by side, and the lens adjusting device is respectively connected with the first 1/4 wave plate, the polarizing lens, the second 1/4 wave plate and the polarization analyzing lens;
the laser lamp group and the camera are respectively connected with the electric control system.
Further, the lens adjusting apparatus includes: the motor, the transmission rod and the transmission gear set;
the motor is fixed on the rotating device, the transmission rod is connected with a rotating shaft of the motor, and the transmission gear set is sleeved on the transmission rod;
the first 1/4 wave plate, the polarizer, the second 1/4 wave plate and the analyzer are respectively in transmission connection with the transmission gear set through a lens clamp provided with transmission teeth;
the motor is connected with the electric control system.
Further, the lens holder includes: a snap ring;
the inner side of the clamping ring is provided with a lens clamping groove, and the outer circumferential surface of the clamping ring is provided with transmission teeth;
the clamping ring is rotatably embedded in the polarization-detecting lens barrel or the polarization lens barrel.
Further, the lens adjusting apparatus further includes: a protective housing;
the motor, the transmission rod and the transmission gear set are respectively arranged in the protective shell.
One or more technical solutions provided in the embodiments of the present application have at least the following technical effects or advantages:
according to the tunnel model endoscopic scanning photoelastic meter provided by the embodiment of the application, the photoelastic observation device and the lens adjusting device are carried by the advancing device and the rotating device, so that the photoelastic meter can move and rotate in a tunnel hole, an observation area is adjusted, the photoelastic meter is used for observing a rock mechanics three-dimensional physical simulation experiment system, high precision is obtained in the tunnel hole of a test piece, and a graph with ideal effects is formed; meanwhile, the traveling device and the rotating device are provided with the photoelastic observation device and the lens adjusting device and are connected with the electric control system, so that highly automatic operation can be realized, and the complicated operation degree is greatly reduced. On the other hand, the polarizing mirror assembly and the polarization analyzing mirror assembly are fixed on the rotating device and are arranged according to the optical path of a reflective photoelastic meter, and the lens adjusting device is in transmission connection with the observation lenses of the polarizing mirror assembly and the polarization analyzing mirror assembly respectively. Therefore, the volume scale of the whole observation structure is small, and the observation structure can adapt to observation in the tunnel hole.
Drawings
Fig. 1 is a schematic structural diagram of an endoscopic scanning photoelastic meter for a tunnel model according to an embodiment of the present invention;
fig. 2 is a schematic structural view of a traveling device according to an embodiment of the present invention;
fig. 3 is a schematic structural diagram of a rotating device according to an embodiment of the present invention;
fig. 4 is a schematic structural diagram of a photoelastic observation device and a lens adjustment device provided in an embodiment of the present invention.
Detailed Description
The embodiment of the application is through providing an endoscopic scanning photoelastic instrument of tunnel model, and it is difficult to obtain the high accuracy at the downthehole formation of ideal effect, and complicated and fussy technical problem of operation to solve and be used for rock mechanics three-dimensional physical simulation experiment system with the photoelastic instrument among the prior art and observe time measuring.
In order to better understand the technical solutions, the technical solutions will be described in detail below with reference to the drawings and the specific embodiments of the present disclosure, and it should be understood that the specific features in the embodiments and examples of the present disclosure are detailed descriptions of the technical solutions of the present disclosure, but not limitations of the technical solutions of the present disclosure, and the technical features in the embodiments and examples of the present disclosure may be combined with each other without conflict.
Referring to fig. 1, an endoscopic scanning photoelastic instrument for tunnel model comprises: the device comprises a traveling device 1, a rotating device 2, a photoelastic observation device 3, a lens adjusting device 4 and an electric control system 5; the rotating device 2 is fixed on the traveling device 1, and the photoelastic observation device 3 and the lens adjusting device 4 are fixed on the rotating device 2; the electric control system is connected with the advancing device, the rotating device, the photoelastic observation device and the lens adjusting device. Therefore, the device can smoothly and stably move along the tunnel hole of the test piece through the travelling device 1 under the control of an electric control system, and is convenient for obtaining a high-quality observation image; meanwhile, the rotating device 2 carries the photoelastic observation device 3 and the lens adjusting device 4 to rotate, so that the graphic information of the circumferential surface of the complete tunnel hole can be returned, and the complete internal observation information of the tunnel hole can be obtained under the cooperation of the advancing device 1; meanwhile, the whole process can be automatically controlled, so that the operation is simple, convenient, smooth and efficient.
Of course, the observed data is transmitted to the computer main body 6 equipped with image analysis software, and is analyzed accordingly.
Embodiments of the respective component devices will be specifically described below.
Referring to fig. 4, the photoelastic observation device 3 includes: a polarizing mirror assembly and an analyzer assembly; the polarizing mirror assembly and the analyzer assembly are fixed on the rotating device 2 and are arranged according to the optical path of a reflective photoelastic meter; namely the polarizing mirror assembly and the analyzer assembly are arranged side by side.
The lens adjusting device 4 is respectively connected with the observation lenses of the polarizing mirror assembly and the polarization detecting mirror assembly in a transmission way and is used for adjusting the deflection angles of the lenses of the polarizing mirror assembly and the polarization detecting mirror assembly.
Referring to fig. 2, in the present embodiment, the traveling device 1 includes: a travelling body and a travelling wheel 8; the walking wheel set is fixed on the traveling main body; the rotating device 2 is fixed to the traveling body.
Further, the traveling body includes: a first housing 7, a slide rail 9, a second housing and a slide carrier 10. The slide rail 9 is connected with the first housing 7 and the second housing respectively, and the carrier 10 is slidably fixed on the slide rail 9; the rotating device 2 is fixed on the carrier 10; namely, a stable and reliable sliding platform is formed, so that high-quality observation is convenient to implement.
For the convenience of operation, the first casing 7 and the second casing are both provided with the walking wheel set 8, so that the walking wheel set can move in a tunnel hole smoothly.
In this embodiment, the first casing 7 and the second casing are cylindrical casing structures, and are adapted to the inner profile of the tunnel hole; the slide rail 9 is arranged on the central axis of the cylindrical shell structure, so that the slide rail 9 can be positioned in the center of a tunnel hole, the rotation operation is convenient to ensure enough space, and a carrying device on a machine of the rotating device 2 is prevented from impacting the inner wall.
In this embodiment, the walking wheel set 8 can be an elastic wheel set, and the outer walls of the first casing 7 and the second casing are provided with accommodating grooves for accommodating the elastic wheel set.
Referring to fig. 3, the rotating device 2 includes: a rotating base 11, a differential gear set 12 and a rotating carrier 13; the rotating base 11 is fixed on the sliding carrier 10, and the rotating carrier 13 is rotatably fixed on the rotating base 11 through the differential gear set 12; wherein, the rotary carrier 13 is rotatably sleeved outside the slide rail 9, so that the rotary carrier 13 can smoothly rotate, and the circumferential observation of the tunnel hole is realized.
The differential gear set 12 is composed of a driving motor and a transmission gear set, and the driving motor is connected with the electronic control system 5.
Correspondingly, the rotary carrier 13 comprises: a rotating cylinder and an internal gear; the internal gear is fixed on the inner wall of the rotating cylinder and is meshed with the differential gear; the rotating cylinder is rotatably sleeved outside the sliding rail 9.
Referring to fig. 4, the polarizer assembly includes: the polarizing lens barrel 19, the first 1/4 wave plate 14, the polarizing lens 15 and the laser lamp set 17; the first end of the polarizing lens barrel 19 is fixed on the rotating device 2, the laser lamp set 17 is fixed at the first end of the polarizing lens barrel 19, and the polarizing lens 15 and the first 1/4 wave plate 14 are arranged in the polarizing lens barrel 19 along the projection direction of the laser lamp set 17.
The analyzer assembly comprises: an analyzer tube 191, a second 1/4 wave plate 141, an analyzer 16, and a camera 18; the first end of the analyzer tube 191 is fixed on the rotating device 2, the camera 18 is fixed on the first end of the analyzer tube 191, the second 1/4 wave plate 141 is fixed on the second end of the analyzer tube 191, and the analyzer 16 is arranged between the second 1/4 wave plate 141 and the camera 18.
The polarizing lens barrel 19 and the polarization analyzing lens barrel 191 are arranged side by side, and the second ends of the polarizing lens barrel and the polarization analyzing lens barrel are slightly gathered; and the lens adjusting device 4 is respectively connected with the first 1/4 wave plate 14, the polarizer 15, the second 1/4 wave plate 141 and the analyzer 16, so as to adjust the deflection angle of the lens.
The laser lamp group 17 and the camera 18 are respectively connected with the electronic control system 5.
Wherein the lens adjusting device 4 includes: a motor 20, a transmission rod and a transmission gear set 21; the motor 20 is fixed on the rotating device 2, the transmission rod is connected with a rotating shaft of the motor 20, and the transmission gear set 21 is sleeved on the transmission rod; the first 1/4 wave plate 14, the polarizer 15, the second 1/4 wave plate 141 and the analyzer 16 are respectively connected with the transmission gear set 21 through a lens clamp provided with transmission teeth in a transmission manner; the motor 20 is connected with the electronic control system 5. Therefore, the motor 20 drives the transmission gear set 21 to drive the lens clamp to rotate, and the deflection angle of the lens is adjusted.
Specifically, the lens holder includes: a snap ring; the inner side of the clamping ring is provided with a lens clamping groove for clamping and embedding a lens. The outer circumferential surface of the clamping ring is provided with transmission teeth; the retainer ring is rotatably embedded in the polarization-detecting lens barrel 191 or the polarization lens barrel 19. Usually, the inner walls of the polarization-detecting lens barrel 191 and the polarization lens barrel 19 are provided with corresponding annular grooves for slidably supporting the snap ring.
In order to reduce the interference of the environmental factors with the adjustment operation, the lens adjusting apparatus 4 further includes: a protective case 22; the motor 20, the transmission rod and the transmission gear set 21 are respectively arranged in the protective housing 22.
One or more technical solutions provided in the embodiments of the present application have at least the following technical effects or advantages:
according to the tunnel model endoscopic scanning photoelastic meter provided by the embodiment of the application, the photoelastic observation device and the lens adjusting device are carried by the advancing device and the rotating device, so that the photoelastic meter can move and rotate in a tunnel hole, an observation area is adjusted, the photoelastic meter is used for observing a rock mechanics three-dimensional physical simulation experiment system, high precision is obtained in the tunnel hole of a test piece, and a graph with ideal effects is formed; meanwhile, the traveling device and the rotating device are provided with the photoelastic observation device and the lens adjusting device and are connected with the electric control system, so that highly automatic operation can be realized, and the complicated operation degree is greatly reduced. On the other hand, the polarizing mirror assembly and the polarization analyzing mirror assembly are fixed on the rotating device and are arranged according to the optical path of a reflective photoelastic meter, and the lens adjusting device is in transmission connection with the observation lenses of the polarizing mirror assembly and the polarization analyzing mirror assembly respectively. Therefore, the volume scale of the whole observation structure is small, and the observation structure can adapt to observation in the tunnel hole.
Finally, it should be noted that the above embodiments are only used for illustrating the technical solutions of the present invention and not for limiting, and although the present invention has been described in detail with reference to the examples, those skilled in the art should understand that the technical solutions of the present invention can be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present invention, which should be covered by the scope of the claims of the present invention.
Claims (10)
1. An endoscopic scanning photoelastic instrument for tunnel model is characterized by comprising: the device comprises a travelling device, a rotating device, a photoelastic observation device, a lens adjusting device and an electric control system;
the rotating device is fixed on the traveling device, and the photoelastic observation device and the lens adjusting device are fixed on the rotating device;
the electronic control system is connected with the advancing device, the rotating device, the photoelastic observation device and the lens adjusting device;
the photoelastic observation device includes: a polarizing mirror assembly and an analyzer assembly;
the polarizing mirror assembly and the polarization analyzing mirror assembly are fixed on the rotating device and are arranged according to the light path of the reflective photoelastic meter;
the lens adjusting device is respectively connected with the observation lenses of the polarizing mirror assembly and the polarization detecting mirror assembly in a transmission way.
2. The tunnel model endoscopic scanning photoelastic meter of claim 1, wherein said traveling means comprises: a traveling body and a traveling wheel set;
the walking wheel set is fixed on the traveling main body;
the rotating device is fixed on the traveling body.
3. The tunnel model endoscopic scanning photoelastic meter of claim 2, wherein said traveling body comprises: the device comprises a first shell, a slide rail, a second shell and a slide carrier;
the slide rail is respectively connected with the first shell and the second shell, and the carrier can be fixed on the slide rail in a sliding manner;
the rotating device is fixed on the carrier;
the first shell and the second shell are both provided with the walking wheel set.
4. The tunnel model endoscopic scanning photoelastic meter of claim 3, wherein said first housing and said second housing are cylindrical housing structures;
the slide rail is arranged on a central axis of the cylindrical shell structure.
5. The tunneling-model endoscopic scanning photoelastic meter of claim 3, wherein said rotation means comprises: the device comprises a rotating base, a differential gear set and a rotating carrier;
the rotating base is fixed on the sliding carrier, and the rotating carrier is rotatably fixed on the rotating base through the differential gear set;
wherein, the rotation carrier is rotationally sleeved outside the slide rail.
6. The tunneling-model endoscopic scanning photoelastic meter of claim 5, wherein said rotary carriage comprises: a rotating cylinder and an internal gear;
the internal gear is fixed on the inner wall of the rotating cylinder and is meshed with the differential gear;
the rotating cylinder is rotatably sleeved outside the sliding rail.
7. The tunneling-model endoscopic scanning photoelastic meter of claim 1, wherein said polarizing mirror assembly comprises: the laser beam splitter comprises a polarizing lens barrel, a first 1/4 wave plate, a polarizing lens and a laser lamp set;
the first end of the polarizing lens barrel is fixed on the rotating device, the laser lamp group is fixed at the first end of the polarizing lens barrel, and the polarizing lens and the first 1/4 wave plate are arranged in the polarizing lens barrel along the projection direction of the laser lamp group;
the analyzer assembly comprises: the analyzer comprises an analyzer tube, a second 1/4 wave plate, an analyzer and a camera;
the first end of the analyzing lens barrel is fixed on the rotating device, the camera is fixed at the first end of the analyzing lens barrel, the second 1/4 wave plate is fixed at the second end of the analyzing lens barrel, and the analyzing lens is arranged between the second 1/4 wave plate and the camera;
the polarizing lens barrel and the polarization analyzing lens barrel are arranged side by side, and the lens adjusting device is respectively connected with the first 1/4 wave plate, the polarizing lens, the second 1/4 wave plate and the polarization analyzing lens;
the laser lamp group and the camera are respectively connected with the electric control system.
8. The tunnel model endoscopic scanning photoelastic meter of claim 7, wherein said lens adjustment means comprises: the motor, the transmission rod and the transmission gear set;
the motor is fixed on the rotating device, the transmission rod is connected with a rotating shaft of the motor, and the transmission gear set is sleeved on the transmission rod;
the first 1/4 wave plate, the polarizer, the second 1/4 wave plate and the analyzer are respectively in transmission connection with the transmission gear set through a lens clamp provided with transmission teeth;
the motor is connected with the electric control system.
9. The tunnel model endoscopic scanning photoelastic meter of claim 8, wherein said lens clamp comprises: a snap ring;
the inner side of the clamping ring is provided with a lens clamping groove, and the outer circumferential surface of the clamping ring is provided with transmission teeth;
the clamping ring is rotatably embedded in the polarization-detecting lens barrel or the polarization lens barrel.
10. The tunnel model endoscopic scanning photoelastic meter of claim 8, wherein said lens adjustment device further comprises: a protective housing;
the motor, the transmission rod and the transmission gear set are respectively arranged in the protective shell.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN202022870202.5U CN213579860U (en) | 2020-12-02 | 2020-12-02 | Endoscopic scanning photoelastic instrument for tunnel model |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202022870202.5U CN213579860U (en) | 2020-12-02 | 2020-12-02 | Endoscopic scanning photoelastic instrument for tunnel model |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112461419A (en) * | 2020-12-02 | 2021-03-09 | 中国科学院武汉岩土力学研究所 | Endoscopic scanning photoelastic instrument for tunnel model |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112461419A (en) * | 2020-12-02 | 2021-03-09 | 中国科学院武汉岩土力学研究所 | Endoscopic scanning photoelastic instrument for tunnel model |
| CN112461419B (en) * | 2020-12-02 | 2024-06-25 | 中国科学院武汉岩土力学研究所 | Tunnel model endoscopic scanning photoelastic instrument |
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