Moving device, anchor rod prestress applying equipment and geotechnical centrifuge

Abstract

The utility model relates to a moving device, anchor rod prestress applying equipment and a geotechnical centrifuge. The moving device comprises an executing mechanism, a power mechanism, a transmission mechanism and a control mechanism. In the process that the executing mechanism moves the target object in the container, the control mechanism is connected with the transmission mechanism, so that the swing angle of the transmission mechanism is changed, and then the distance between the executing mechanism and the target object is changed; the position of the execution mechanism is correspondingly adjusted according to the position change of the target object, for example, mechanical interference or collision between the execution mechanism and the geotechnical model is avoided, and the geotechnical model can keep real stress change and form change.

Description

Technical Field

[0001] The utility model relates to the technical field of geotechnical centrifuge technology, in particular to a moving device, an anchor prestress applying device and a geotechnical centrifuge. Background Art

[0002] In recent years, China's infrastructure projects are often characterized by large volume and rapid technology replacement, which are mainly reflected in major projects such as earth-rock dams, marine port projects, soft soil foundation reinforcement and roads. For the support means of such major projects, anchor reinforcement can be adopted. For example, by applying prestress to the anchor, the surrounding rock and soil mass can be in a compressed state, so as to improve the mechanical properties of the anchoring system, inhibit the sliding and deformation of the rock and soil mass, reduce the risk of tensile and shear failure of the rock and soil mass, thereby improving the bearing capacity of the rock and soil mass and the stability of the above major projects.

[0003] To analyze and study the situation of rock and soil mass, a geotechnical centrifuge is often needed for assistance. For example, prestress is applied to the anchor in the rock and soil mass model in the geotechnical centrifuge to simulate the geotechnical structure.

[0004] Under the action of centrifugal force, the geotechnical model will generate the stress and deformation of the corresponding engineering structure. If the device for applying force to the object in the geotechnical model cannot adapt to the change of the geotechnical structure, it is easy to have mechanical interference or collision with the object in the model, which will seriously affect the authenticity of the simulation and cause the failure of analysis and verification.

[0005] Therefore, it is necessary to develop a new type of geotechnical centrifuge to improve some of the above problems existing in the related technology. Summary of the Utility Model

[0006] The purpose of the utility model is to provide a moving device, an anchor prestress applying device and a geotechnical centrifuge, which can adjust the position of the actuator accordingly according to the position change of the target object when the geotechnical model undergoes structural changes, avoid mechanical interference or collision, and is beneficial to the geotechnical model to maintain real stress changes and morphological changes.

[0007] The purpose of the utility model can be realized by the following technical solutions:

[0008] The moving device provided by the utility model includes: an actuator, a power mechanism, a transmission mechanism and a control mechanism; the actuator is used to move the target object in the container; the power mechanism is used to provide power; the transmission mechanism is connected to the power mechanism and the actuator; the control mechanism is connected to the transmission mechanism and is used to adjust the swing angle of the transmission mechanism to adjust the distance between the actuator and the target object.

[0009] Optionally, the transmission mechanism is swingably connected to the actuator and the power mechanism respectively.

[0010] Optionally, the transmission mechanism includes a first transmission member, a second transmission member, and a transmission control member. Two ends of the transmission control member are swingably connected to the first transmission member and the second transmission member respectively.

[0011] Optionally, the control mechanism includes a control moving member and a control fixing member. The transmission control member is rotatably arranged on the control fixing member. The control moving member is connected to the control fixing member. During the movement of the control moving member, the transmission control member is driven to move. Wherein, the rotation axis of the transmission control member is perpendicular to the movement path of the control moving member.

[0012] Optionally, the control moving member includes a filamentous portion and an annular portion. The control fixing member includes a bearing portion. The transmission control member is arranged inside the bearing portion. The filamentous portion is connected to the annular portion.

[0013] Optionally, at least two bearing portions are arranged on the transmission control member at intervals.

[0014] Optionally, the annular portion includes a first ring body and a second ring body which are rotatably connected to each other. The first ring body is connected to the filamentous portion. The second ring body is connected to the bearing portion.

[0015] Optionally, the control moving member includes a servo motor. The servo motor is connected to the wall surface of the container by bolts. The filamentous portion is connected to the output portion of the servo motor.

[0016] The present utility model provides an anchor prestress applying device, which includes a conversion device and the above-mentioned moving device. The actuating mechanism is connected to the anchor through the conversion device and is used to convert the rotational motion output by the actuating mechanism into a linear motion for pulling the anchor.

[0017] The present utility model provides a geotechnical centrifuge, which includes the above-mentioned moving device.

[0018] Compared with the prior art, the moving device, the anchor prestress applying device, and the geotechnical centrifuge provided by the present utility model have the following beneficial effects:

[0019] 1. During the process of the actuating mechanism moving the target object in the container, by connecting the transmission mechanism through the control mechanism, the swing angle of the transmission mechanism is changed, so as to change the distance between the actuating mechanism and the target object. When the geotechnical model undergoes a structural change, the position of the actuating mechanism can be adjusted accordingly according to the position change of the target object. For example, mechanical interference or collision between the actuating mechanism and the geotechnical model can be avoided, which is beneficial for the geotechnical model to maintain real stress changes and morphological changes.

[0020] 2. The utility model is swingably connected between the transmission mechanism and the actuator respectively, so that when the control mechanism adjusts the angle of the transmission mechanism, the actuator can not only adjust its own position correspondingly according to the position change of the target object, but also the output angle of the actuator to the target object does not change, reducing the influence of the position change on the work of the actuator.

[0021] 3. The utility model is provided with a transmission control member between the first transmission member and the second transmission member, so that the transmission control member is swingably connected with the first transmission member and the second transmission member respectively. The swing angle is adjusted by driving the transmission control member to move through the control mechanism. The offset at the end of the first transmission member can be compensated by the second transmission member, avoiding the displacement of the actuator in an unexpected direction and enabling the actuator to adapt to the movement track of the target object.

[0022] 4. The utility model is provided with the transmission control member rotatably on two spaced bearing parts, which is beneficial to improving the stability of the transmission mechanism during the transmission and attitude adjustment processes. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a schematic structural diagram of the mobile device applied to a geotechnical centrifuge in an embodiment of the utility model;

[0024] Figure 2 is Figure 1 a schematic connection structural diagram of the actuator, the conversion mechanism and the anchor shown;

[0025] Figure 3 is Figure 1 a schematic connection structural diagram of the power structure and the transmission mechanism shown;

[0026] Figure 4 is Figure 1 a schematic structural diagram of the control mechanism shown;

[0027] Figure 5 is Figure 4 an enlarged view of the place A shown;

[0028] Figure 6 is Figure 1 a schematic structural diagram of the mobile device in the case of multiple anchor rods shown.

[0029] Reference numerals:

[0030] 1. Actuator; 101. Magnetic part; 2. Power mechanism; 201. Driving part; 202. Servo motor; 3. Transmission mechanism; 301. First transmission part; 302. Second transmission part; 303. Transmission control part; 304. Transmission connecting part; 4. Control mechanism; 401. Control moving part; 4011. Steering gear; 4012. Filamentous part; 40121. First filament segment; 40122. Second filament segment; 4013. Ring-shaped part; 40131. First ring body; 40132. Second ring body; 402. Control fixing part; 4021. Bearing part; 5. Conversion mechanism; 501. Conversion part; 502. Conversion fixing part; 503. Pressure-bearing spring; 7. Container; 701. First sandy soil body; 702. Front wall; 703. Anchor rod; 8. Universal joint; 9. Bearing. Detailed implementation manners

[0031] The present utility model will be described in detail below with reference to the accompanying drawings and specific embodiments. This embodiment is implemented on the premise of the technical solution of the present utility model, and the detailed implementation manners and specific operation processes are given, but the protection scope of the present utility model is not limited to the following embodiments.

[0032] An embodiment of the present utility model provides a mobile device. Refer to Figure 1 , the mobile device includes an actuator 1, a power mechanism 2, a transmission mechanism 3, and a control mechanism 4; the actuator 1 is used to move the target object in the container 7; the power mechanism 2 is used to provide power; the transmission mechanism 3 is connected to the power mechanism 2 and the actuator 1; the control mechanism 4 is connected to the transmission mechanism and is used to adjust the swing angle of the transmission mechanism 3 to adjust the distance between the actuator 1 and the target object.

[0033] In some specific embodiments, the target object may be the anchor rod 703 on the geotechnical model in the container 7, and the actuator 1 pulls the anchor rod 703 to apply prestress to the anchor rod 703.

[0034] In some specific embodiments, refer to Figure 1 and Figure 2 , the container 7 is in the shape of a cuboid, sandy soil is laid in the container 7, and the front wall 702 is inserted into the sandy soil, so that a first sandy soil body 701 and a second sandy soil body (not marked in the figure) are respectively formed on both sides of the front wall 702. The height of the first sandy soil body 701 is greater than that of the second sandy soil body, the height of the second sandy soil body is flush with the front wall 702, and the anchor rod 703 is arranged in the first sandy soil body 701.

[0035] In some specific embodiments, the power mechanism 2 includes a motor, which is used to generate torque and output rotational motion to the transmission mechanism 3.

[0036] In some specific embodiments, referring to Figure 1 and Figure 3 , the transmission mechanism 3 is swingably disposed on the power mechanism 2. One end of the control mechanism 4 is disposed at the top of the container 7, and the other end is connected to the transmission mechanism 3 for driving the transmission mechanism 3 to swing so as to adjust the attitude of the transmission mechanism 3.

[0037] Specifically, during the swinging process of the transmission mechanism 3, the actuator 1 located at the end of the transmission mechanism 3 undergoes displacement both in the horizontal direction and the vertical direction of the container 7.

[0038] In some embodiments of the present utility model, the transmission mechanism 3 is swingably connected to the actuator 1 and the power mechanism 2 respectively.

[0039] In some specific embodiments, referring to Figure 1 , Figure 2 and Figure 3 , the transmission mechanism 3 connects the actuator 1 and the power mechanism 2 through a universal joint 8.

[0040] In some embodiments of the present utility model, referring to Figure 1 and Figure 4 , the transmission mechanism 3 includes a first transmission member 301, a second transmission member 302, and a transmission control member 303. Both ends of the transmission control member 303 are swingably connected to the first transmission member 301 and the second transmission member 302 respectively.

[0041] In some specific embodiments, the first transmission member 301, the second transmission member 302, and the transmission control member 303 are all rod-shaped structures.

[0042] In some specific embodiments, referring to Figure 4 , both ends of the transmission control member 303 are connected to the ends of the first transmission member 301 and the second transmission member 302 through a universal joint 8.

[0043] In some specific embodiments, referring to Figure 2 and Figure 3 , the first transmission member 301 is connected to the output end of the power mechanism 2, and the second transmission member 302 is connected to the actuator 1.

[0044] In some embodiments of the present utility model, referring to Figure 4, the control mechanism 4 includes a control moving member 401 and a control fixing member 402. The transmission control member 303 is rotatably arranged on the control fixing member 402. The control moving member 401 is connected to the control fixing member 402. During the movement of the control moving member 401, it drives the transmission control member 303 to move. Wherein, the rotation axis of the transmission control member 303 is perpendicular to the movement path of the control moving member 401.

[0045] In some specific embodiments, the control moving member 401 can be a filament formed by weaving materials, such as steel wire.

[0046] Specifically, referring to Figure 4 , one end of the control moving member 401 is connected to the top of the container 7, and the other end is connected to the control fixing member 402. The power mechanism 2 and the target object are arranged horizontally in the container 7. During the movement of the control moving member 401, it drives the control fixing member 402 to rise or fall, thereby changing the included angle between the first transmission member 301 and the second transmission member 302 and the control fixing member 402, and realizing the horizontal movement of the actuator 1.

[0047] Specifically, when the first sandy soil body 701 undergoes structural deformation, the positions of the anchor rod 703 and the front wall 702 change, and the actuator 1 adjusts its position accordingly to avoid the actuator 1 directly pressing against the front wall 702 or the anchor rod 703.

[0048] In some embodiments of the present invention, referring to Figure 4 , the control moving member 401 includes a steering gear 4011. The steering gear 4011 is connected to the wall surface of the container 7 by bolts, and the filamentous part 4012 is connected to the output part of the steering gear 4011.

[0049] In some specific embodiments, the output part of the steering gear 4011 drives the filamentous part 4012 to rise or fall.

[0050] In some specific embodiments, the steering gear 4011 is connected to the top of the container 7 by bolts.

[0051] In some embodiments of the present invention, referring to Figure 4 and Figure 5 , the control moving member 401 includes a filamentous part 4012 and a ring part 4013. The control fixing member 402 includes a bearing part 4021. The transmission control member 303 is arranged in the bearing part 4021, and the filamentous part 4012 is connected to the ring part 4013.

[0052] In some specific embodiments, referring to Figure 4 andFigure 5 The control moving member 401 includes a filamentous portion 4012. The filamentous portion 4012 includes a first filament segment 40121 and a second filament segment 40122. The first filament segment 40121 connects the annular portion 4013 and the output portion of the servo 4011. The second filament segment 40122 connects the annular portion 4013 and the bearing portion 4021.

[0053] In some specific embodiments, referring to Figure 5 the bearing axis of the bearing portion 4021 is horizontally arranged and perpendicular to the first filament segment 40121.

[0054] In some embodiments of the present utility model, referring to Figure 5 at least two bearing portions 4021 are spaced apart and arranged on the transmission control member 303.

[0055] In some specific embodiments, referring to Figure 5 the second filament segment 40122 includes two branches connected together at one end, and the branches are respectively connected to the bearing portions 4021 in a one-to-one correspondence.

[0056] In some embodiments of the present utility model, referring to Figure 4 and Figure 5 the annular portion 4013 includes a first ring body 40131 and a second ring body 40132 that are rotatably connected to each other. The first ring body 40131 is connected to the filamentous portion 4012, and the second ring body 40132 is connected to the bearing portion 4021.

[0057] In some specific embodiments, referring to Figure 5 the annular portion 4013 includes a connecting body (not labeled in the figure). The first ring body 40131 and the second ring body 40132 are respectively rotatably arranged at both ends of the connecting body. The first ring body 40131 is connected to the first filament segment 40121, and the second ring body 40132 is connected to the second filament segment 40122.

[0058] In some specific embodiments, referring to Figure 5 the connecting body is arranged along the radial direction of the first ring body 40131 and the second ring body 40132.

[0059] Specifically, the filamentous portion 4012 can be a steel wire.

[0060] In some embodiments of the present utility model, the moving device further includes a computer and a servo control system. The servo control system is wirelessly connected to the power mechanism 2.

[0061] In some specific embodiments, the power mechanism 2 includes a motor for generating torque and outputting a rotational motion to the transmission mechanism 3.

[0062] In some embodiments of the present utility model, referring to Figure 3 The transmission mechanism 3 further includes a transmission connecting member 304 and a transmission member. The transmission member includes the first transmission member 301 and the second transmission member 302 connected to each other. The transmission connecting member 304 penetrates through the wall of the container 7, and the first transmission member 301 and the second transmission member 302 are swingably connected to the transmission connecting member 304 and the actuator 1 respectively.

[0063] In some specific embodiments, referring to Figure 3 , the transmission connecting member 304 is a rod-shaped part, and the transmission connecting member 304 is coaxially connected to the output shaft of the power mechanism 2 through a coupling.

[0064] In some specific embodiments, referring to Figure 3 , the transmission connecting member 304 is fixed by a bearing 9.

[0065] In some specific embodiments, referring to Figure 2 and Figure 3 , the first transmission member 301 and the second transmission member 302 are respectively connected to the transmission connecting member 304 and the actuator 1 through a universal joint 8.

[0066] Specifically, the universal joint 8 can be a spherical universal joint.

[0067] In some embodiments of the present utility model, referring to Figure 3 , the power mechanism 2 includes a driving member 201 and a torque limiter, and the driving member 201 is connected to the transmission mechanism 3 through the torque limiter.

[0068] In some specific embodiments, the functions of the driving member 201 and the torque limiter can be realized by a torque screwdriver.

[0069] In some embodiments of the present utility model, referring to Figure 3 , the power mechanism 2 further includes a servo motor 202, and the servo motor 202 is connected to the driving member 201 through a belt drive.

[0070] An anchor prestress applying device provided by an embodiment of the present utility model includes a conversion device and the above-mentioned moving device. The actuator 1 is connected to an anchor 703 through the conversion device, and is used to convert the rotational motion output by the actuator 1 into a linear motion for pulling the anchor 703.

[0071] In some embodiments of the present utility model, referring to Figure 1 and Figure 2, the conversion device includes a conversion mechanism 5, the conversion mechanism 5 includes a conversion member 501 and a conversion fixing member 502, the conversion fixing member 502 is threadedly connected to the conversion member 501, and the actuator 1 is connected to the conversion member 501 for driving the conversion member 501 to rotate and then move the target object.

[0072] In some specific embodiments, the conversion mechanism 5 can be a lead screw nut mechanism, a gear rack mechanism, a cam mechanism, etc., and the present invention does not limit this.

[0073] In some specific embodiments, referring to Figure 2 , the conversion member 501 is a screw rod, the conversion fixing member 502 is provided with a threaded hole matching the screw rod, and the end of the conversion member 501 is connected to the anchor rod 703 through a universal joint 8. When the conversion member 501 rotates on the conversion fixing member 502, a pulling force is applied to the anchor rod 703, thereby applying prestress.

[0074] In some specific embodiments, referring to Figure 2 , the conversion fixing member 502 is a plate-like structure, and the conversion fixing member 502 is arranged parallel to the front wall 702.

[0075] In some embodiments of the present invention, referring to Figure 2 , the conversion fixing member 502 is arranged in the container 7 through a pressure-bearing spring 503, and the axis of the pressure-bearing spring 503 is parallel to the moving direction of the conversion member 501.

[0076] In some specific embodiments, referring to Figure 2 , at least two pressure-bearing springs 503 are arranged between the conversion fixing member 502 and the front wall 702 in a centrosymmetric manner with the conversion member 501 as the center.

[0077] In some embodiments of the present invention, referring to Figure 2 , the actuator 1 includes a magnetic member 101, and the magnetic member 101 is provided with a groove matching the shape of the target object for driving the target object after the target object enters the groove under the action of magnetic force.

[0078] In some specific embodiments, referring to Figure 2 , the magnetic attraction member 101 is a magnetic attraction sleeve, and the magnetic attraction sleeve is used to connect the conversion member 501.

[0079] An embodiment of the present invention provides a geotechnical centrifuge, including the above-mentioned moving device, which is used to move the target object in the container 7.

[0080] In some embodiments of the present invention, referring to Figure 6, the quantity and position of the mobile device are correspondingly set with the quantity and position of the anchor rod.

[0081] The preferred specific embodiments of the present invention have been described in detail above. It should be understood that those of ordinary skill in the art can make many modifications and variations based on the concept of the present invention without creative work. Therefore, all technical solutions that can be obtained by those skilled in the art in the technical field according to the concept of the present invention through logical analysis, reasoning or limited experiments on the basis of the prior art shall fall within the protection scope determined by the claims.

Claims

1. A mobile device, characterized in that: include: An actuator (1) for moving a target object in a container (7); A power mechanism (2), used for providing power; A transmission mechanism (3) connecting the power mechanism (2) and the actuator (1); A control mechanism (4) is connected to the transmission mechanism and is used to adjust the swing angle of the transmission mechanism (3) so as to adjust the distance between the actuator (1) and the target object.

2. The mobile device according to claim 1, characterized in that The transmission mechanism (3) is swivelably connected to the actuator (1) and the power mechanism (2).

3. The mobile device according to claim 2, characterized in that The transmission mechanism (3) comprises a first transmission member (301), a second transmission member (302) and a transmission control member (303), and two ends of the transmission control member (303) are respectively swingably connected to the first transmission member (301) and the second transmission member (302).

4. The mobile device according to claim 3, characterized in that: The control mechanism (4) comprises a control movable member (401) and a control fixed member (402); the transmission control member (303) is rotatably arranged on the control fixed member (402); the control movable member (401) is connected to the control fixed member (402); the control movable member (401) drives the transmission control member (303) to move during movement; wherein the rotation axis of the transmission control member (303) is perpendicular to the movement path of the control movable member (401).

5. The mobile device according to claim 4, characterized in that: The control movable member (401) includes a filamentous portion (4012) and an annular portion (4013), the control fixed member (402) includes a bearing portion (4021), the transmission control member (303) is arranged in the bearing portion (4021), and the filamentous portion (4012) is connected to the annular portion (4013).

6. The mobile device according to claim 5, characterized in that: At least two bearing portions (4021) are arranged on the transmission control member (303) at intervals.

7. The mobile device according to claim 5, characterized in that: The annular portion (4013) includes a first ring body (40131) and a second ring body (40132) which are rotatably connected to each other, wherein the first ring body (40131) is connected to the filamentary portion (4012), and the second ring body (40132) is connected to the bearing portion (4021).

8. The mobile device according to claim 5, characterized in that The control moving member (401) comprises a steering gear (4011), the steering gear (4011) is connected to the wall surface of the container (7) via bolts, and the filamentous portion (4012) is connected to the output portion of the steering gear (4011).

9. An anchor prestressing device, characterized in that: It comprises a conversion device and a moving device as claimed in any one of claims 1 to 8, wherein the actuator (1) is connected to the anchor rod (703) through the conversion device, and is used to convert the rotational motion output by the actuator (1) into a linear motion for pulling the anchor rod (703).

10. A geotechnical centrifuge, characterized in that: Comprising the mobile device according to any one of claims 1 to 8.

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