Lifting module and on-site material level simulation device

Abstract

The utility model discloses a lifting module and an on-site material level simulation device, and belongs to the technical field of material level measurement. The lifting module comprises a rack, a lifting mechanism and a rack leveling assembly, the rack comprises a base and a stand column, and the stand column extends in the vertical direction and is fixed to the base; the lifting mechanism comprises a lifting driving assembly and a lifting platform, the lifting platform is installed on the stand column in a liftable mode, and the lifting driving assembly is used for driving the lifting platform to ascend and descend. The rack leveling assembly comprises a fixing piece and a lifting supporting piece, the fixing piece is fixed to the base, the lifting supporting piece is in threaded connection with the fixing piece and extends in the vertical direction, and the bottom of the lifting supporting piece can abut against the containing face of the base; the at least three rack leveling assemblies are evenly arranged at intervals and used for adjusting the horizontal posture of the base so that the whole lifting module can be kept in the horizontal state. The lifting module is applied to the on-site material level simulation device, overall leveling of the on-site material level simulation device can be achieved, and on-site in-situ calibration precision is improved.

Description

Technical Field

[0001] The present application relates to the technical field of level measurement, and particularly relates to a lifting module and an on-site level simulation device. Background Art

[0002] Currently, with the increasing demand for level measurement in fields such as ships, petroleum, and chemical industries, reflective level gauges such as radar have also developed rapidly. In order to improve the in-situ calibration accuracy of the reflective level gauge, in the prior art, a secondary pipe is installed bypassing the waveguide of the reflective level gauge, and a reflector is installed in the secondary pipe to provide a reference object, so as to solve the problem of building a standard calibration environment on-site for the reflective level gauge. However, for a spatial reflective level gauge without a waveguide, it is difficult to additionally install a waveguide and a secondary pipe on an existing large-capacity measuring instrument, making it difficult for the spatial reflective level gauge to perform in-situ calibration on-site.

[0003] In the related art, an on-site level simulation device is provided, including a lifting module and a reflector leveling module. The reflector leveling module is used to install the reflector and can adjust the horizontal attitude of the reflector. The lifting module is used to lift the reflector leveling module to build an in-situ calibration environment for the spatial reflective level gauge. However, the reflector leveling module is only used for fine leveling of the reflector. If the overall on-site level simulation device is not in a horizontal state due to the on-site installation environment, leveling cannot be achieved through the reflector leveling module.

[0004] Therefore, there is an urgent need for a lifting module to solve the above problems. Summary of the Utility Model

[0005] The purpose of the present application is to solve or at least alleviate part or all of the above problems. To this end, the purpose of the present application is to provide a lifting module and an on-site level simulation device, which can achieve the leveling of the overall on-site level simulation device, improve the in-situ calibration accuracy, and meet the accuracy requirements of daily level measurement.

[0006] To achieve the above objectives, the present application adopts the following technical solutions:

[0007] In a first aspect, a lifting module is provided, including:

[0008] A frame, including a base and a column, the column extending in the vertical direction and fixed to the base;

[0009] A lifting mechanism, including a lifting drive assembly and a lifting platform, the lifting platform being liftably installed on the column, and the lifting drive assembly being used to drive the lifting platform to lift;

[0010] The frame leveling assembly includes a fixing member and a lifting support member. The fixing member is fixed to the base, and the lifting support member is threadedly connected to the fixing member and extends in the vertical direction. Moreover, the bottom of the lifting support member can abut against the placement surface of the base; at least three such frame leveling assemblies are evenly spaced and are used to adjust the horizontal posture of the base.

[0011] As an alternative to the lifting module, the frame further includes a crossbeam fixed to the upper end of the column. The lifting drive assembly includes a lifting driver, a guide wheel, and a steel wire rope. The lifting driver is fixed to the base, the guide wheel is fixed to the crossbeam, the steel wire rope bypasses the guide wheel, and one end of the steel wire rope is connected to the lifting driver, and the other end is connected to the lifting platform.

[0012] As an alternative to the lifting module, the base includes a bottom frame and a column fixing member. The shape of the column fixing member is U-shaped, and the two arms of the column fixing member are fixed to the bottom frame, and both the column and the lifting driver are installed on the column fixing member.

[0013] As an alternative to the lifting module, the lifting drive assembly further includes a bracket. The bracket is fixed to the column fixing member, and the bracket has an installation groove for accommodating the lifting driver.

[0014] As an alternative to the lifting module, the lifting mechanism further includes lifting rings. At least three lifting rings are evenly spaced and fixed to the lifting platform, and the steel wire rope has a plurality of sub-cables, and each sub-cable is connected to each lifting ring in a one-to-one correspondence.

[0015] As an alternative to the lifting module, the column is provided with a chute extending in the vertical direction, and the lifting platform has a sliding member that slidably cooperates with the chute.

[0016] As an alternative to the lifting module, at least two columns are evenly spaced and surround the circumference of the lifting platform.

[0017] As an alternative to the lifting module, the frame leveling assembly further includes a handwheel. The handwheel is fixed to the top of the lifting support member.

[0018] As an alternative to the lifting module, the handwheel includes a wheel disc and a lever. The wheel disc is fixed to the top of the lifting support member, and the lever is fixed to the wheel disc and extends in the vertical direction.

[0019] In a second aspect, a on-site level simulation device is provided, which includes a reflector, a reflector leveling module, and the lifting module as described above. The reflector is mounted on the leveling platform of the reflector leveling module, and the reflector leveling module is mounted on the lifting platform and is used to adjust the horizontal attitude of the reflector.

[0020] The beneficial effects of this application are as follows:

[0021] The lifting module provided in this application includes a frame, a lifting mechanism, and a frame leveling component. The frame includes a base and columns, and the columns extend in the vertical direction and are fixed to the base; the lifting mechanism includes a lifting drive component and a lifting platform, and the lifting platform is liftably mounted on the columns, and the lifting drive component is used to drive the lifting platform to lift; the frame leveling component includes a fixing member and a lifting support member, the fixing member is fixed to the base, the lifting support member is threadedly connected to the fixing member and extends in the vertical direction, and the bottom of the lifting support member can abut against the placement surface of the base; at least three frame leveling components are evenly spaced and are used to adjust the horizontal attitude of the base so that the entire lifting module remains in a horizontal state.

[0022] The on-site level simulation device provided in this application, by applying the above-mentioned lifting module, can achieve the leveling of the entire on-site level simulation device, improve the in-situ calibration accuracy on site, and meet the accuracy requirements for daily level measurement. Description of the Drawings

[0023] In order to more clearly illustrate the technical solutions in the embodiments of this application, the following will briefly introduce the drawings required for description in the embodiments of this application. Obviously, the drawings in the following description are only some embodiments of this application. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained according to the content of the embodiments of this application and these drawings.

[0024] Figure 1 Shows a schematic structural diagram of the on-site level simulation device provided in the embodiment of this application.

[0025] Figure 2 Shows a schematic structural diagram of the lifting module provided in the embodiment of this application.

[0026] Figure 3 Shows a schematic structural diagram of the lifting platform provided in the embodiment of this application.

[0027] Figure 4 Shows a schematic structural diagram of the base provided in the embodiment of this application.

[0028] Figure 5 Shows Figure 4 A partial structural diagram of the base in

[0029] Figure 6 The partial structural schematic diagram of the lifting platform and the column provided by the embodiment of the present application is shown.

[0030] Figure 7 Shown is Figure 6 the structural schematic diagram of the anti - sway mechanism in [].

[0031] Figure 8 Shown is Figure 6 the sectional schematic diagram of the anti - sway mechanism in one direction in [].

[0032] Figure 9 Shown is Figure 6 the sectional schematic diagram of the anti - sway mechanism in another direction in [].

[0033] Figure 10 The structural schematic diagram of the reflector leveling module provided by the present application is shown.

[0034] Figure 11 Shown is Figure 10 the structural schematic diagram of the leveling mechanism in [].

[0035] Figure 12 Shown is Figure 11 the partial sectional schematic diagram of the leveling mechanism in [].

[0036] Figure 13 The installation orientation schematic diagram of the space - type reflective level gauge and the on - site level simulation device provided by the embodiment of the present application is shown.

[0037] Figure 14 The schematic diagram of the reflector leveling module provided by the embodiment of the present application is shown.

[0038] Figure 15 The process schematic diagram of adjusting the horizontal attitude of the reflector provided by the embodiment of the present application is shown.

[0039] Reference numerals:

[0040] 100, space - type reflective level gauge;

[0041] 1. Lifting module; 11. Frame; 111. Base; 1111. Bottom frame; 1112. Column fixing part; 112. Column; 1121. Chute; 113. Cross beam; 1131. Beam hole; 12. Lifting mechanism; 121. Lifting platform; 122. Lifting drive assembly; 1221. Lifting driver; 1222. Guide wheel; 1223. Steel wire rope; 12231. Sub-rope; 1224. Limit ring; 1225. Limiting part; 1226. Bracket; 123. Suspension ring; 13. Frame leveling assembly; 131. Fixing part; 132. Lifting support part; 133. Handwheel; 1331. Wheel disc; 1332. Lever; 14. Anti-sway mechanism; 141. Bracket; 1411. Connecting part; 1412. Mounting part; 1413. Elastic part; 1414. Guide part; 1415. Damping bearing; 142. Sliding part; 143. Rolling assembly; 1431. Fixed disc; 1432. Sphere;

[0042] 2. Reflector leveling module; 21. Leveling platform; 211. Frame; 212. Mounting seat; 213. First connecting part; 214. Second connecting part; 215. Fixed arm; 22. Leveling mechanism; 22a. First leveling mechanism; 22b. Second leveling mechanism; 22c. Third leveling mechanism; 221. Ball joint assembly; 2211. Ball joint seat; 22111. Fixed seat; 22112. First cover plate; 22113. Second cover plate; 2212. Ball head part; 22121. Connecting part; 22122. Spherical part; 2213. Sleeve; 222. Leveling drive assembly; 2221. Leveling driver; 2222. Lifting part; 22221. Anti-rotation protrusion;

[0043] 3. Reflector;

[0044] 41. Biaxial inclination sensor; 42. Control module. Detailed implementation mode

[0045] Before explaining any implementation mode of the present application in detail, it should be understood that the present application is not limited to the structural details and component arrangements described in the following description or shown in the above drawings.

[0046] In the present application, the terms "include", "comprise", "have" or any other variant thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements, but also includes other elements not expressly listed, or also includes elements inherent to such process, method, article or device. Without further limitation, an element defined by the statement "including a..." does not exclude the existence of another identical element in the process, method, article or device including the element.

[0047] In this application, the term "and / or" describes the relationship between associated objects and represents three possible relationships. For example, A and / or B can represent three cases: A exists alone, both A and B exist simultaneously, and B exists alone. Additionally, in this application, the character " / " generally indicates that the associated objects before and after are in an "and / or" relationship.

[0048] In this application, the terms "connect", "combine", "couple", and "mount" can be direct connections, combinations, couplings, or mounts, or they can be indirect connections, combinations, couplings, or mounts. Among them, by way of example, a direct connection means that two parts or components are connected together without the need for an intermediate member, and an indirect connection means that two parts or components are each connected to at least one intermediate member, and these two parts or components are connected through the intermediate member. In addition, "connect" and "couple" are not limited to physical or mechanical connections or couplings and can include electrical connections or couplings.

[0049] In this application, those of ordinary skill in the art will understand that relative terms used in connection with a quantity or condition (such as "about", "approximately", "substantially", etc.) are intended to include the stated value and have the meaning indicated by the context. For example, such relative terms include at least the degree of error associated with the measurement of a particular value, tolerances resulting from manufacturing, assembly, use, etc. associated with a particular value. Such terms should also be considered to disclose a range defined by the absolute values of two endpoints. Relative terms can refer to a plus or minus a certain percentage (such as 1%, 5%, 10% or more) of the indicated value. Numerical values without the use of relative terms should also be disclosed as specific values with tolerances. In addition, when expressing a relative angular positional relationship (such as substantially parallel, substantially perpendicular), "substantially" can refer to a plus or minus a certain number of degrees (such as 1 degree, 5 degrees, 10 degrees or more) from the indicated angle.

[0050] In this application, those of ordinary skill in the art will understand that the functions performed by a component can be performed by one component, multiple components, one part, or multiple parts. Similarly, the functions performed by a part can also be performed by one part, one component, or a combination of multiple parts.

[0051] In this application, the orientation terms such as "upper", "lower", "left", "right", "front", and "rear" are described based on the orientation and positional relationship shown in the drawings, and should not be construed as a limitation on the embodiments of this application. In addition, in the context, it should also be understood that when it is mentioned that one component is connected "above" or "below" another component, it can not only be directly connected "above" or "below" another component, but also be indirectly connected "above" or "below" another component through an intermediate component. It should also be understood that orientation terms such as the upper side, lower side, left side, right side, front side, and rear side not only represent the positive orientation, but can also be understood as the side orientation. For example, the lower side can include directly below, lower left, lower right, lower front, and lower rear, etc.

[0052] The on-site level simulation device provided by this application is used for the in-situ calibration of a spatial reflective level gauge, and can provide a measurement reference target covering the entire calibration height range for the spatial reflective level gauge to be calibrated and length standards such as a laser interferometer on-site, ensuring that the geometric relationship among the beam axis of the spatial reflective level gauge to be calibrated, the measurement axis of length standards such as a laser interferometer, and the measurement reference target meets the standard one-dimensional length calibration requirements.

[0053] It should be noted that the on-site level simulation device provided by this application solves the technical problem of the lack of a practical, stable, reliable, and portable on-site level simulation device for the in-situ calibration of spatial reflective level gauges at present, and compared with manual in-situ calibration, it can achieve the value traceability of spatial reflective level gauges under in-situ conditions. In addition, this on-site level simulation device can be applied to the construction of a standard environment for the on-site in-situ calibration of spatial reflective level gauges in environments such as ships and storage tanks.

[0054] Figure 1 The structural schematic diagram of the on-site level simulation device provided by the embodiments of this application is shown. As Figure 1 shown, the on-site level simulation device includes a lifting module 1, a reflector leveling module 2, a reflector 3, and a control system. The lifting module 1 is used to adjust the height of the reflector 3, and the reflector leveling module 2 cooperates with the control system to adjust the horizontal attitude of the reflector 3 to ensure that the geometric relationship among the beam axis of the spatial reflective level gauge to be calibrated, the measurement axis of length standards such as a laser interferometer, and the measurement reference target meets the calibration requirements of standard one-dimensional length, and improve the in-situ calibration accuracy of the spatial reflective level gauge.

[0055] In this embodiment, the control system includes a control module 42 and a biaxial inclination sensor 41. The biaxial inclination sensor 41 is installed on the reflector 3, and the control module 42 can control the reflector leveling module 2 to adjust the horizontal attitude of the reflector 3 according to the detection result of the biaxial inclination sensor 41.

[0056] For a spatial reflective level gauge, the key technical difficulties of the lifting module 1 do not lie in aspects such as optimizing the lifting speed or enhancing the load-bearing capacity. Instead, they lie in improving the stability of the lifting module 1, ensuring precise control of its horizontal attitude, as well as the overall portability of the lifting module 1 and its self-weight management. In particular, the impact of the lifting process on the measuring instrument needs to be considered. For example, any form of occlusion of the beam of the spatial reflective level gauge and the measuring beam of length standards such as laser interferometers should be avoided, and the clutter interference that may be introduced by the device structure itself should be eliminated to ensure the authenticity of the measurement results of the spatial reflective level gauge.

[0057] However, most of the existing lifting modules on the market, such as single-arm direct-lift type, scissor type, and screw type, are mostly applied to outdoor operations or scenarios such as vertical transportation of goods. They are characterized by large self-weight and large load, are not convenient to carry, and have defects such as beam occlusion and clutter interference. Moreover, most of them do not have the ability to control the horizontal attitude and cannot meet the requirements for in-situ calibration of the spatial reflective level gauge.

[0058] The lifting module 1 provided in this application is convenient to carry, can achieve stable lifting, ensure precise control of its horizontal attitude, avoid any form of occlusion of the beam of the spatial reflective level gauge and the measuring beam of length standards such as laser interferometers, and eliminate the clutter interference that may be introduced by the structure itself to ensure the authenticity of the measurement results of the spatial reflective level gauge.

[0059] Figure 2 The structural schematic diagram of the lifting module 1 provided in the embodiment of this application is shown. As Figure 2 shown, the lifting module 1 provided in this application includes a frame 11 and a lifting mechanism 12. The frame 11 includes a base 111, a column 112, and a cross beam 113. The column 112 is arranged vertically and fixed to the base 111, and the cross beam 113 is fixed to the upper end of the column 112. The cross beam 113 has a beam hole 1131; the lifting mechanism 12 includes a lifting platform 121 that can lift relative to the column 112. The reflector leveling module 2 is installed on the lifting platform 121, and the reflector 3 is installed on the reflector leveling module 2. The lifting platform 121 drives the reflector leveling module 2 and the reflector 3 to lift to the required height. It can be understood that the column 112 can adopt an integral structure or a multi-section combined structure, and the multi-sections are detachably fixed by bolts.

[0060] The lifting mechanism 12 also includes a lifting drive assembly 122, which is used to drive the lifting platform 121 to lift. The lifting drive assembly 122 includes a lifting drive 1221, a guide wheel 1222 and a wire rope 1223. The lifting drive 1221 is fixed to the base 111, the guide wheel 1222 is fixed to the crossbeam 113, the wire rope 1223 passes around the guide wheel 1222, and one end of the wire rope 1223 is connected to the lifting drive 1221, and the other end is connected to the lifting platform 121. In application, the lifting drive 1221 can drive the wire rope 1223 to wind, thereby realizing the lifting operation of the lifting platform 121.

[0061] In this embodiment, there are two guide wheels 1222, which are arranged at intervals and are both used to guide the wire rope 1223. One of the guide wheels 1222 is located at the edge of the crossbeam 113, and is used to ensure that the wire rope 1223 is smoothly wound around the wheel surface of the guide wheel 1222 in the vertical direction. The other guide wheel 1222 is located in the middle position of the crossbeam 113, and is used to ensure that the wire rope 1223 extends in the vertical direction and is smoothly wound around the wheel surface of the guide wheel 1222. The two guide wheels 1222 can ensure the stability of the overall movement of the wire rope 1223.

[0062] The lifting driver 1221 can use a servo motor, and the lifting drive component 122 also includes a reducer and a wire rope winding disk. The servo motor is connected to the wire rope winding disk through the reducer, and the wire rope winding disk is driven to wind the wire rope 1223, so that the wire rope 1223 drives the lifting platform 121 to rise and fall.

[0063] In addition, the lifting drive assembly 122 also includes a limit ring 1224 and a limit member 1225. The limit ring 1224 is installed on the wire rope 1223, and the limit member 1225 is installed on the column 112. The limit member 1225 has a through hole, and the diameter of the through hole is larger than the diameter of the wire rope 1223 and smaller than the diameter of the limit ring 1224. The limit ring 1224 and the limit member 1225 are abutted against each other to limit the lowest position of the lifting platform 121.

[0064] Figure 3 FIG. 1 is a schematic diagram showing the structure of the lifting platform 121 provided in the embodiment of the present application. Figure 3As shown in the figure, the lifting mechanism 12 further includes a lifting ring 123. At least three lifting rings 123 are evenly spaced and fixed to the lifting platform 121. The wire rope 1223 has a plurality of sub-wire ropes 12231, and each sub-wire rope 12231 is connected to each lifting ring 123 in a one-to-one correspondence. For example, three lifting rings 123 are arranged in an equilateral triangle on the lifting platform 121. The wire rope 1223 has three sub-wire ropes 12231, and each sub-wire rope 12231 is fixedly connected to each lifting ring 123. Moreover, the convergence point of the three sub-wire ropes 12231 and the center of the lifting platform 121 are on the same vertical line, so that the forces on each lifting ring 123 are equivalent, ensuring the overall balanced force of the lifting platform 121 and further ensuring the stability of the lifting platform 121 during the lifting process.

[0065] In this embodiment, the shape of the lifting platform 121 is square, which is not only convenient for the processing and manufacturing of the lifting platform 121, but also conducive to the calibration of the center and the center of gravity of the lifting platform 121, and further facilitates the positioning and installation of the lifting rings 123.

[0066] Figure 4 The structural schematic diagram of the base 111 provided by the embodiment of the present application is shown. As Figure 4 shown, the base 111 includes a bottom frame 1111 and a column fixing member 1112. The shape of the column fixing member 1112 is U-shaped. The two arms of the column fixing member 1112 are fixed to the bottom frame 1111, and both the column 112 and the lifting drive 1221 are installed on the column fixing member 1112. With such a setting, the installation strength of the column 112 can be improved, and at the same time, a mounting position is provided for the lifting drive 1221 to ensure the stability of the lifting drive 1221.

[0067] The lifting drive assembly 122 further includes a bracket 1226. The bracket 1226 is fixed to the column fixing member 1112, and the bracket 1226 has a mounting groove for accommodating the lifting drive 1221. For example, the bracket 1226 can be formed by combining metal plates, which can not only ensure the bearing capacity of the bracket 1226, but also ensure the structural strength of the bracket 1226.

[0068] Figure 5 Shown is Figure 4 a partial structural schematic diagram of the base 111 in Figure 5 As shown, the lifting module 1 further includes a frame leveling assembly 13. The frame leveling assembly 13 is used to adjust the horizontal posture of the base 111 to ensure the overall stability of the lifting module 1 and make the horizontal state of the lifting module 1 meet the calibration requirements. It should be noted that the frame leveling assembly 13 can achieve the rough leveling of the overall on-site level simulation device by adjusting the horizontal posture of the base 111.

[0069] The frame leveling assembly 13 includes a fixing member 131 and a lifting support member 132. The fixing member 131 is fixed to the bottom frame 1111 of the base 111. The lifting support member 132 is threadedly connected to the fixing member 131 and extends in the vertical direction, and the bottom of the lifting support member 132 can abut against the placement surface of the base 111. Four frame leveling assemblies 13 are evenly spaced and are used to adjust the horizontal attitude of the base 111. Specifically, the shape of the bottom frame 1111 is quadrilateral, and the four frame leveling assemblies 13 are respectively arranged at the four corners of the bottom frame 1111. In other embodiments, the number of the frame leveling assemblies 13 is at least three, and no further examples will be given here.

[0070] The frame leveling assembly 13 further includes a handwheel 133. The handwheel 133 is fixed to the top of the lifting support member 132. Rotating the handwheel 133 enables the lifting support member 132 to move up and down relative to the fixing member 131 for easy operation. Further, the handwheel 133 includes a wheel disc 1331 and a lever 1332. The wheel disc 1331 is fixed to the top of the lifting support member 132, and the lever 1332 is fixed to the wheel disc 1331 and extends in the vertical direction. In application, an operator holds the lever 1332 to rotate the handwheel 133, thereby causing the lifting support member 132 to rise or fall, so as to adjust the horizontal attitude of the base 111.

[0071] Figure 6 The partial structural schematic diagram of the lifting platform 121 and the column 112 provided by the embodiment of the present application is shown. As Figure 6 Combined with Figure 2 shown, the lifting module 1 further includes an anti - sway mechanism 14. The anti - sway mechanism 14 is used to ensure the stable lifting of the lifting platform 121 relative to the column 112 and prevent the lifting platform 121 from swaying significantly. In this embodiment, two columns 112 are symmetrically fixed to the base 111. An anti - sway mechanism 14 is provided on the side of the lifting platform 121 opposite to the column 112, and each anti - sway mechanism 14 is in sliding and rolling cooperation with the corresponding column 112. In other embodiments, the number of columns 112 can also be any number such as three, four, five, etc., and no further examples will be given here.

[0072] Figure 7 Shown is Figure 6 the structural schematic diagram of the anti - sway mechanism 14. Figure 8 Shown is Figure 6 the sectional schematic diagram of the anti - sway mechanism 14 in one direction. Figure 9 Shown is Figure 6 the sectional schematic diagram of the anti - sway mechanism 14 in another direction. As Figures 7 to 9As shown, the anti-shake mechanism 14 includes a bracket 141 and a sliding member 142. The bracket 141 is fixed to the lifting platform 121, and the sliding member 142 is fixed to the bracket 141. The column 112 has a chute 1121 that slidably cooperates with the sliding member 142 and extends in the vertical direction. Through the cooperation of the sliding member 142 with the chute 1121 on the column 112, the lifting of the lifting platform 121 can be guided, ensuring that the lifting platform 121 lifts and lowers stably in the vertical direction and preventing the lifting platform 121 from tilting significantly forward and backward during the lifting and lowering process.

[0073] The anti-shake mechanism 14 further includes a rolling assembly 143. The rolling assembly 143 includes a fixed disk 1431 and a sphere 1432. The fixed disk 1431 is fixed to the bracket 141, and the fixed disk 1431 has a spherical annular groove for accommodating the sphere 1432. The spherical surface of the sphere 1432 abuts against the column 112. When the lifting platform 121 lifts and lowers, the frictional force between the sphere 1432 and the column 112 is rolling friction, which can not only reduce the frictional force during the lifting and lowering process of the lifting platform 121, but also ensure the stable lifting and lowering of the lifting platform 121.

[0074] In this embodiment, the rolling assembly 143 has two sets of sphere groups. Each sphere group has at least two spheres 1432, and the two sets of sphere groups are respectively located on both sides of the chute 1121. In other words, the spherical surface of the sphere 1432 abuts against the surface of the column 112, while the sliding member 142 extends into the chute 1121 of the column 112.

[0075] Sliding members 142 are provided above and below the rolling assembly 143. That is, the number of sliding members 142 is two. The two sliding members 142 are respectively located above and below the rolling assembly 143. The arrangement of the two sliding members 142 can further ensure the stable lifting and lowering of the lifting platform 121 along the chute 1121.

[0076] The bracket 141 includes a connecting member 1411, a mounting member 1412, and an elastic member 1413. The connecting member 1411 is fixed to the lifting platform 121. The mounting member 1412 is arranged parallel and spaced apart from the connecting member 1411 and is used to fix the sliding member 142 and the rolling assembly 143. The elastic member 1413 is located between the mounting member 1412 and the connecting member 1411, and the direction of elastic deformation of the elastic member 1413 is the same as the arrangement direction of the mounting member 1412 and the connecting member 1411. With such an arrangement, the mounting member 1412 can elastically move relative to the connecting member 1411 through the elastic member 1413, which can not only absorb and reduce the vibration generated during the lifting and lowering movement of the lifting platform 121, making the lifting platform 121 quickly and stably stop, but also prevent the sliding member 142 from abutting against the bottom surface of the chute 1121 and getting stuck with the chute 1121.

[0077] The bracket 141 further includes a guide member 1414. One end of the guide member 1414 is fixed to the mounting member 1412, and the other end thereof is slidably engaged with the connecting member 1411. The elastic member 1413 is sleeved outside the guide member 1414, and the guide member 1414 is used to limit and guide the elastic member 1413. For example, the elastic member 1413 can be a spring, and the guide member 1414 can be a guide rod.

[0078] Further, the bracket 141 further includes a damping bearing 1415. The damping bearing 1415 is fixed to the connecting member 1411 and is slidably engaged with the guide member 1414. The damping bearing 1415 makes the sliding of the guide member 1414 relative to the connecting member 1411 have a certain damping, reduces the crosstalk of the guide member 1414, and improves the overall stability of the anti-shaking mechanism 14.

[0079] In this embodiment, the elastic member 1413, the guide member 1414, and the damping bearing 1415 are set in groups. There are two groups in the bracket 141, and the two groups are respectively located on the left and right sides of the rolling assembly 143 to ensure the stable connection between the mounting member 1412 and the connecting member 1411 and make the overall force of the mounting member 1412 balanced. In other embodiments, the number of groups of the elastic member 1413, the guide member 1414, and the damping bearing 1415 can also be three groups, four groups, five groups, etc., and will not be exemplified one by one here.

[0080] Figure 10 The structural schematic diagram of the reflector leveling module 2 provided by the present application is shown. As Figure 10 Combined with Figure 1 shown, the reflector leveling module 2 includes a leveling platform 21 and a leveling mechanism 22. Three leveling mechanisms 22 are installed on the lifting platform 121 and are arranged in an equilateral triangle. The output ends of the leveling mechanisms 22 are connected to the leveling platform 21 and are used to adjust the horizontal attitude of the leveling platform 21.

[0081] The leveling platform 21 includes a frame 211 and a mounting seat 212. Three mounting seats 212 are fixedly spaced on the frame 211, and the three mounting seats 212 are respectively connected to the output ends of the three leveling mechanisms 22 in one-to-one correspondence. In this embodiment, the shape of the frame 211 is square, and the leveling platform 21 further includes fixing arms 215. The three fixing arms 215 are fixed to three adjacent sides of the frame 211. The extension lines of two of the fixing arms 215 coincide, and the extension line of the third fixing arm 215 is perpendicular to the extension lines of the two fixing arms 215 to realize three-point constraint positioning of the reflector 3. Of course, in other embodiments, the number of the fixing arms 215 can also be four to realize four-point constraint positioning of the reflector 3.

[0082] Furthermore, the shape of the reflector 3 is circular. The cross beam 113 is provided with beam holes 1131, and the centers of the beam holes 1131 and the reflector 3 are located on the same vertical line.

[0083] Figure 11 shows Figure 10 a schematic structural view of the leveling mechanism 22 in Figure 12 shows Figure 11 a partial sectional schematic view of the leveling mechanism 22 in. As Figures 11 to 12 shown, the leveling mechanism 22 includes a ball hinge assembly 221 and a leveling drive assembly 222. The leveling drive assembly 222 is fixedly connected to the lifting platform 121 of the lifting module 1 through the ball hinge assembly 221, and the output end of the leveling drive assembly 222 is connected to the leveling platform 21 and can be lifted relative to the lifting platform 121.

[0084] The ball hinge assembly 221 includes a ball hinge seat 2211 and a ball head member 2212. The ball hinge seat 2211 is fixed to the lifting platform 121, and the ball hinge seat 2211 has a spherical groove and an opening communicating with the spherical groove. The ball head member 2212 includes a connecting portion 22121 and a spherical portion 22122. The spherical portion 22122 is matched with the spherical groove, and the connecting portion 22121 passes through the opening and extends out of the ball hinge seat 2211. With such a setting, it is possible to avoid deformation of the leveling platform 21 and the reflector 3 due to the telescopic movement of the output end of the leveling drive assembly 222 during the process of adjusting the horizontal attitude of the leveling platform 21 by the three leveling mechanisms 22.

[0085] The ball hinge seat 2211 includes a fixed seat 22111, a first cover plate 22112 and a second cover plate 22113. The fixed seat 22111 is fixed to the lifting platform 121. The first cover plate 22112 and the second cover plate 22113 are symmetrically arranged and are both detachably connected to the fixed seat 22111. The first cover plate 22112, the second cover plate 22113 and the fixed seat 22111 cooperate to form a spherical groove, and the first cover plate 22112 and the second cover plate 22113 cooperate to form an opening. With such a setting, it is convenient for the assembly of the ball hinge seat 2211 and the ball head member 2212, and the assembly efficiency is improved. Further, the fixed seat 22111 is detachably fixed to the lifting platform 121, which is convenient for the disassembly and assembly of the reflector leveling module 2 and the lifting platform 121, and the disassembly and assembly efficiency of the equipment is improved.

[0086] The ball hinge assembly 221 further includes a sleeve 2213. The connecting portion 22121 is detachably and fixedly connected to the sleeve 2213, and the sleeve 2213 extends in the vertical direction. The output end of the leveling drive assembly 222 can be lifted relative to the sleeve 2213.

[0087] The leveling drive assembly 222 includes a leveling driver 2221 and a lifting member 2222. The lifting member 2222 is sleeved outside the sleeve 2213 and fixedly connected to the leveling platform 21. The leveling driver 2221 is installed on the sleeve 2213 and is used to drive the lifting member 2222 to lift relative to the sleeve 2213. Among them, the leveling driver 2221 is a servo motor. In this embodiment, the leveling drive assembly 222 further includes a lead screw-nut transmission assembly, and the leveling driver 2221 realizes the lifting of the lifting member 2222 relative to the sleeve 2213 through the lead screw-nut transmission assembly. In other embodiments, the leveling drive assembly 222 further includes a worm and worm gear transmission assembly, and the leveling driver 2221 realizes the lifting of the lifting member 2222 relative to the sleeve 2213 through the worm and worm gear transmission assembly. It can be understood that as long as it can realize the transmission assembly that converts the rotational motion of the leveling driver 2221 into the linear lifting motion of the lifting member 2222, no further examples will be given here.

[0088] In order to realize the connection between the leveling platform 21 and the lifting member 2222, the leveling platform 21 further includes a connection assembly. The connection assembly includes a first connecting member 213 and a second connecting member 214. The first connecting member 213 is fixed on the mounting base 212. The first connecting member 213 and the second connecting member 214 cooperate to form a receiving cavity for receiving the lifting member 2222, and then the second connecting member 214 is detachably and fixedly connected to the first connecting member 213 through a screw nut.

[0089] Furthermore, the lifting member 2222 has an anti-rotation convex 22221 extending in the vertical direction, and the receiving cavity has an anti-rotation concave portion cooperating with the anti-rotation convex 22221 to prevent the mounting base 212 from rotating relative to the lifting member 2222 and ensure the synchronous lifting of the mounting base 212 and the lifting member 2222.

[0090] In this embodiment, the leveling mechanism 22 and the dual-axis inclination sensor 41 adopt the simplest design of discrete components, which can make the total weight of the reflector leveling module 2 reach 8 kg or less. Since the overall weight of the reflector leveling module 2 is relatively light, during the process of the lifting module 1 driving the reflector leveling module 2 and the reflector 3 to lift, the horizontal component force generated by the gravity of the reflector leveling module 2 is very small. Therefore, the column 112 is basically not affected by the horizontal force, so the column 112 does not need to be made of steel structure and can be made of light aluminum or lighter carbon fiber materials, and the number of columns 112 can be maintained at two to meet the requirements, greatly reducing the overall weight of the lifting module 1. In addition, after the frame leveling assembly 13 roughly levels the base 111, since the pulling force of the steel wire rope 1223 on the lifting platform 121 is an internal force of the system, the overall center of gravity position of the on-site level simulation device basically does not change and there is no risk of overturning. Therefore, there is no need to add a counterweight to lower the center of gravity, further reducing the weight of the lifting module 1. The weight of the lifting module 1 can reach 25 kg.

[0091] The present application also provides an on-site in-situ calibration method for a level gauge. Based on the on-site level simulation device as described above, the level gauge is specifically a spatial reflection type level gauge, and its on-site in-situ calibration method includes an equipment assembly step and an in-situ calibration step. Briefly, in application, the on-site level simulation device is carried to the on-site to be measured, then the on-site level simulation device is assembled, and corresponding length standards such as a spatial reflection type level gauge and a laser interferometer are installed, and then the in-situ calibration operation of the spatial reflection type level gauge is performed.

[0092] Figure 13 The installation orientation schematic diagram of the spatial reflection type level gauge and the on-site level simulation device provided by the embodiment of the present application is shown. As Figure 13 shown, the equipment assembly step includes: assembling the on-site level simulation device; installing the spatial reflection type level gauge at a position H1 above the cross beam 113, and making the center of the antenna aperture surface of the spatial reflection type level gauge and the center of the beam hole 1131 be located on the same vertical line; installing the laser interferometer at the center position of the bottom of the reflector 3. Since there is no obstacle between the lower surface of the reflector 3 and the control module 42, installing length standards such as the laser interferometer at the bottom of the reflector 3 can eliminate beam occlusion and clutter interference.

[0093] In this embodiment, the diameter of the reflector 3 wherein, D1 is the diameter of the beam hole 1131; θ is the beam angle of the spatial reflection type level gauge 100; H max is the distance between the reflector 3 and the spatial reflection type level gauge 100 when the spatial reflection type level gauge 100 is at the maximum calibration height.

[0094] The in-situ calibration step includes: lifting the lifting platform 121 to the required height, then adjusting the horizontal attitude of the reflector 3, and making the center of the reflector 3, the center of the beam hole 1131, and the center of the antenna aperture surface of the spatial reflection type level gauge be collinear, so as to construct a standard one-dimensional ranging environment on-site and improve the accuracy of the on-site in-situ calibration result.

[0095] Figure 14 The schematic diagram of the reflector leveling module 2 provided by the embodiment of the present application is shown. As Figure 14 shown, adjusting the horizontal attitude of the reflector 3 includes the following steps:

[0096] The joints of the three leveling mechanisms 22 and the leveling platform 21 are respectively denoted as point A, point B, and point C. Among them, the line connecting point A and point B is denoted as the first axis, the line connecting point A and point C is denoted as the second axis, the angle between the first axis and the horizontal plane is α, and the angle between the second axis and the horizontal plane is β;

[0097] The biaxial inclination sensor 41 detects the values of α and β;

[0098] Determine the highest point among points A, B, and C according to α and β;

[0099] If point A is the highest, first make the leveling mechanism 22 corresponding to point B drive the leveling platform 21 to rise until α is less than 0.01°, then make the leveling mechanism 22 corresponding to point C drive the leveling platform 21 to rise until β is less than 0.01°, and finally lock all the leveling mechanisms 22;

[0100] If point B is the highest, first make the leveling mechanism 22 corresponding to point A drive the leveling platform 21 to rise until α is less than 0.01°, then make the leveling mechanism 22 corresponding to point C drive the leveling platform 21 to rise until β is less than 0.01°, and finally lock all the leveling mechanisms 22;

[0101] If point C is the highest, first make the leveling mechanism 22 corresponding to point A drive the leveling platform 21 to rise until β is less than 0.01°, then make the leveling mechanism 22 corresponding to point B drive the leveling platform 21 to rise until α is less than 0.01°, and finally lock all the leveling mechanisms 22.

[0102] For the convenience of explaining the adjustment steps of adjusting the horizontal attitude of the reflector 3, the adjustment mechanism corresponding to point A is denoted as the first adjustment mechanism, the adjustment mechanism corresponding to point B is denoted as the second adjustment mechanism, and the adjustment mechanism corresponding to point C is denoted as the third adjustment mechanism.

[0103] Figure 15 Shows the schematic flow chart of adjusting the horizontal attitude of the reflector 3 provided by the embodiment of the present application. As Figure 15 Combined with Figure 14 As shown, when α < 0 and β < 0, then point A is the highest. The control module 42 outputs drive signals to the first leveling mechanism 22a, the second leveling mechanism 22b, and the third leveling mechanism 22c, keeps the first leveling mechanism 22a and the third leveling mechanism 22c stationary, and the lifting member 2222 of the second leveling mechanism 22b rises by a certain displacement, that is, the reflector 3 rotates around the second axis, and its rising displacement is determined by the measured value of α until α is less than 0.01°, at which time the first axis is in a horizontal state. After the first axis is in a horizontal state, the control module 42 outputs drive signals to the first leveling mechanism 22a, the second leveling mechanism 22b, and the third leveling mechanism 22c, keeps the first leveling mechanism 22a and the second leveling mechanism 22b stationary, and the lifting member 2222 of the third leveling mechanism 22c rises by a certain displacement, that is, the reflector 3 rotates around the first axis, and its rising displacement is determined by the measured value of β until β is less than 0.01°, at which time the second axis is in a horizontal state. When both the first axis and the second axis are in a horizontal state, lock the three leveling mechanisms 22. Similarly, when point B is the highest or point C is the highest, the above control method can be referred to, which will not be elaborated here.

[0104] It should be noted that after the control module 42 collects the results detected by the biaxial inclination sensor 41, it adopts a closed-loop control algorithm that looks to the highest point. By calculating the position of the highest point, it outputs a driving signal to control the corresponding leveling mechanism 22 to drive the leveling platform 21 to rise and fall until the leveling platform 21 is in a horizontal state, and then locks the leveling mechanism 22. By adopting the closed-loop control algorithm that looks to the highest point, the control logic is simple, the robustness is strong, and since the lifting platform 121 is very stable during the lifting movement process, there is no need for large-angle leveling, and the leveling time is short. It only takes more than ten seconds to complete one leveling. In the case of the same number of calibration points, the in-situ calibration time of the spatial reflection type level gauge can be greatly shortened.

[0105] The above shows and describes the basic principles, main features and advantages of the present application. Those skilled in the art of this industry should understand that the above embodiments do not limit the present application in any form. Any technical solutions obtained by means of equivalent replacement or equivalent transformation fall within the protection scope of the present application.

Claims

1. A lifting module, characterized in that, Comprising: A frame (11), including a base (111) and columns (112), the columns (112) extending in the vertical direction and being fixed to the base (111); A lifting mechanism (12), including a lifting drive assembly (122) and a lifting platform (121), the lifting platform (121) being liftably mounted on the columns (112), the lifting drive assembly (122) being used to drive the lifting platform (121) to lift; A frame leveling assembly (13), including a fixing member (131) and a lifting support member (132), the fixing member (131) being fixed to the base (111), the lifting support member (132) being threadedly connected to the fixing member (131) and extending in the vertical direction, and the bottom of the lifting support member (132) being capable of abutting against the placement surface of the base (111); at least three of the frame leveling assemblies (13) being evenly spaced and used to adjust the horizontal attitude of the base (111).

2. The lifting module according to claim 1, wherein The frame (11) further includes a cross beam (113) fixed to the columns (112), the lifting drive assembly (122) including a lifting driver (1221), a guide wheel (1222), and a steel wire rope (1223), the lifting driver (1221) being fixed to the base (111), the guide wheel (1222) being fixed to the cross beam (113), the steel wire rope (1223) passing around the guide wheel (1222), and one end of the steel wire rope (1223) being connected to the lifting driver (1221) and the other end being connected to the lifting platform (121).

3. The lifting module according to claim 2, wherein, The base (111) includes a bottom frame (1111) and a column fixing member (1112), the column fixing member (1112) being U-shaped, the two arms of the column fixing member (1112) being fixed to the bottom frame (1111), and both the column (112) and the lifting driver (1221) being mounted on the column fixing member (1112).

4. The lifting module according to claim 3, wherein The lifting drive assembly (122) further includes a bracket (1226), the bracket (1226) being fixed to the column fixing member (1112), and the bracket (1226) having a mounting groove for accommodating the lifting driver (1221).

5. The lifting module according to claim 2, characterized in that, The lifting mechanism (12) further includes lifting rings (123), at least three of the lifting rings (123) being evenly spaced and fixed to the lifting platform (121), the steel wire rope (1223) having a plurality of sub-cables (12231), each of the sub-cables (12231) being connected to one of the lifting rings (123) in a one-to-one correspondence.

6. The lifting module according to claim 1, wherein A chute (1121) extending in the vertical direction is provided on the column (112), and the lifting platform (121) has a sliding member (142) that slidably cooperates with the chute (1121).

7. The lifting module according to claim 6, wherein At least two of the columns (112) are evenly spaced and surround the periphery of the lifting platform (121).

8. The lifting module according to any one of claims 1-7, characterized in that, The frame leveling assembly (13) further includes a handwheel (133), and the handwheel (133) is fixed to the top of the lifting support (132).

9. The lifting module according to claim 8, wherein, The handwheel (133) includes a wheel disc (1331) and a lever (1332). The wheel disc (1331) is fixed to the top of the lifting support (132), and the lever (1332) is fixed to the wheel disc (1331) and extends in the vertical direction.

10. A field level simulation device, characterized in that, It includes a reflector (3), a reflector leveling module (2), and a lifting module according to any one of claims 1-9. The reflector (3) is installed on the leveling platform (21) of the reflector leveling module (2). The reflector leveling module (2) is installed on the lifting platform (121) and is used to adjust the horizontal attitude of the reflector (3).

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