Movable electromagnetic measurement system three-dimensional motion frame and electromagnetic measurement system

Abstract

The invention relates to the technical field of electromagnetic measurement equipment, in particular to a movable electromagnetic measurement system three-dimensional motion frame and an electromagnetic measurement system. The frame comprises a trailer, a lifting mechanism, a pitching mechanism and an azimuth mechanism. The lifting mechanism realizes stable lifting of the antenna feeder system through a lead screw guide rod; the pitching mechanism realizes pitching motion through a triangular structure driven by an electric push rod; the azimuth mechanism drives a parallelogram structure composed of a connecting rod and an azimuth shaft through a single electric push rod, so that synchronous azimuth rotation of the double-side antenna feeder system is realized, and the problem of pointing deviation is fundamentally solved. The frame effectively solves the technical problems that an existing electromagnetic measurement system is inconvenient to move and low in integration level, and pointing deviation is prone to occurring during orientation adjustment. The electromagnetic measurement system is integrated with a movable electromagnetic measurement system three-dimensional motion frame, the problems that traditional equipment is scattered, deployment is slow, and pointing precision is not high are solved, and the efficiency and quality of field electromagnetic measurement tasks are improved.

Description

Technical Field

[0001] This invention relates to the field of electromagnetic measurement equipment technology, and in particular to a three-dimensional motion frame and electromagnetic measurement system for a movable electromagnetic measurement system. Background Technology

[0002] Electromagnetic measurement systems are widely used in fields such as communications, radar, and remote sensing. Their antenna feed section often requires adjustments in multiple dimensions, including elevation, azimuth, and position, during operation to complete measurement tasks for different targets.

[0003] Currently, some electromagnetic measurement systems suffer from low integration and inconvenient relocation. Furthermore, the frame structure for realizing multi-dimensional motion of the antenna system sometimes exhibits problems such as unstable motion, asynchronous azimuth pointing, and insufficient structural complexity and compactness. For example, during azimuth adjustment, asynchronous movement on both sides can lead to pointing deviation of the antenna system, affecting measurement accuracy and even damaging the mechanism. Therefore, there is an urgent need for a frame structure that integrates mobility and enables stable and accurate three-dimensional motion. Summary of the Invention

[0004] The purpose of this invention is to overcome the shortcomings of the prior art and provide a movable electromagnetic measurement system three-dimensional motion frame and electromagnetic measurement system. The frame integrates a moving function and can reliably realize the movement of the antenna system in the three dimensions of elevation, pitch and azimuth.

[0005] To achieve the above objectives, in a first aspect, the present invention provides a movable electromagnetic measurement system three-dimensional motion frame, comprising: trailer; The lifting mechanism is fixedly installed on the trailer and is used to realize the lifting movement of the pitch and azimuth mechanisms; The pitch mechanism is mounted on the lifting mechanism; The azimuth mechanism, mounted on the pitch mechanism, is used to install the antenna feed system; The lifting mechanism includes a fixed back plate, a lead screw, guide rods, and a lifting drive motor. The fixed back plate is fixed to the trailer, the drive motor drives the lead screw, and the guide rods are arranged parallel to each other on one side of the lead screw. The pitch mechanism includes a pitch support, a first electric push rod, and a pitch axis. The pitch support is connected to the lifting mechanism. The pitch support, the first electric push rod, and the pitch axis form a triangular structure. The pitch movement is achieved by driving the pitch axis through the extension and retraction of the first electric push rod. Two antenna system mounting brackets are installed at both ends of the pitch axis and can move with the pitch axis; The azimuth mechanism includes a second electric push rod, a connecting rod, and azimuth axes. The two azimuth axes are located at both ends of the pitch axis and are perpendicularly connected to the pitch axis. Each antenna feeder system mounting base is rotatably connected to the corresponding azimuth axis. One end of the second electric push rod is hinged to one of the antenna feeder system mounting bases, and both ends of the connecting rod are hinged to the two antenna feeder system mounting bases. The extension and retraction of the second electric push rod drives the two antenna feeder system mounting bases to rotate synchronously relative to their respective azimuth axes.

[0006] Optionally, the lifting drive motor and the lead screw are connected via a flexible coupling.

[0007] Optionally, there are two guide rods, and the two guide rods are located on both sides of the lead screw.

[0008] Optionally, a nut is fixedly installed on the pitch support, and the nut is threadedly connected to the lead screw. A guide block is also fixedly installed on the pitch support, and the guide block is sleeved on the guide rod. When the lead screw rotates, the pitch support moves along the axial direction of the lead screw.

[0009] Optionally, the pitch support includes a plate and support plates spaced apart on both sides of the plate. The two support plates are arranged in parallel and spaced apart, and the pitch axis passes through the two support plates and is connected to the support plates by bearings.

[0010] Optionally, the azimuth mechanism further includes a support base located between two support plates. The pitch axis is fixedly connected to the support base. One end of the first electric push rod is hinged to the plate and the other end is hinged to the support base. One end of the second electric push rod is hinged to one of the antenna system mounting bases and the other end is hinged to the support base.

[0011] Optionally, the antenna feed system mounting base includes a mounting base body and an antenna mounting plate. The mounting base body is connected to the azimuth axis via a bearing, and the antenna mounting plate is detachably mounted on one side of the mounting base for mounting the antenna.

[0012] Optionally, the antenna system mounting base also includes a power amplifier module mounting plate, which is detachably mounted on the other side of the mounting base. The mounting interface of the power amplifier module is provided on the power amplifier module mounting plate for mounting the power amplifier module of the antenna system.

[0013] Optionally, the trailer also integrates a cabinet for housing the electrical components of the electromagnetic measurement system.

[0014] In a second aspect, the present invention also provides an electromagnetic measurement system, including a three-dimensional motion frame of the electromagnetic measurement system according to any implementation of the first aspect.

[0015] The above-described technical solution of the present invention has the following advantages: The mobile electromagnetic measurement system three-dimensional motion frame provided by this invention integrates a trailer, lifting mechanism, pitch mechanism and azimuth mechanism into one unit, and uses a lead screw guide rod to achieve stable lifting, a triangular structure to achieve pitch motion and a parallelogram structure to drive the synchronous rotation of the two azimuth axes. It effectively solves the technical problems of existing electromagnetic measurement systems such as inconvenience of movement, low integration and easy pointing deviation during azimuth adjustment, and realizes the unity of rapid system deployment and high-precision three-dimensional pointing of the antenna system.

[0016] The electromagnetic measurement system provided by this invention integrates the aforementioned movable electromagnetic measurement system three-dimensional motion frame. By integrating the movable three-dimensional motion frame with the electromagnetic measurement functional unit, a highly integrated, mobile, and precise measurement electromagnetic measurement system is formed. This effectively solves the problem that traditional electromagnetic measurement systems cannot simultaneously achieve mobility, integration, and measurement accuracy, and greatly improves the overall measurement performance. Attached Figure Description

[0017] The accompanying drawings are provided for illustrative purposes only, and the proportions and quantities of the components in the drawings may not be consistent with the actual product.

[0018] Figure 1 This is a schematic diagram of the structure of a three-dimensional motion frame of a movable electromagnetic measurement system according to Embodiment 1 of the present invention; Figure 2 yes Figure 1 Another structural diagram of the three-dimensional motion frame of the electromagnetic measurement system from a different angle; Figure 3 yes Figure 1 A front view schematic diagram of the three-dimensional motion frame of the electromagnetic measurement system; Figure 4 yes Figure 3 A schematic diagram of the AA cross-section of the three-dimensional motion frame of the electromagnetic measurement system; Figure 5 yes Figure 3 A schematic diagram of the BB cross-section of the three-dimensional motion frame of the electromagnetic measurement system; Figure 6 This is a schematic diagram of the structure of a pitching mechanism, an azimuth mechanism, and an antenna feeder system mounting base according to Embodiment 1 of the present invention; Figure 7 yes Figure 6 Another structural diagram of the pitch mechanism, azimuth mechanism, and antenna feeder system mounting base; Figure 8 This is a schematic diagram of an electromagnetic measurement system according to Embodiment 2 of the present invention.

[0019] In the picture: 1: Trailer; 11: Casters; 12: Support rod; 2: Lifting mechanism; 21: Fixed back panel; 22: Lead screw; 23: Guide rod; 24: Lifting drive motor; 25: Flexible coupling; 26: Nut; 27: Guide block; 28: Corrugated pipe; 3: Pitch mechanism; 31: Pitch support; 311: plate body; 312: Support plate; 32: First electric actuator; 33: Pitch axis; 34: Pitch drive motor 4: Orientation mechanism; 41: Second electric actuator; 42: Linkage; 43: Azimuth axis; 44: Support base; 45: Orientation drive motor; 5: Antenna system mounting bracket; 51: Mounting base; 52: Antenna mounting plate; 53: Power amplifier module mounting plate; 6: Power amplifier module; 7: Antenna; 8: Server rack. Detailed Implementation

[0020] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0021] Example 1 like Figures 1 to 7 As shown, this embodiment of the invention provides a movable electromagnetic measurement system three-dimensional motion frame. Exemplarily, the frame includes a trailer 1 with casters 11 at its bottom for easy movement and stable support during measurement via support rods 12.

[0022] See Figure 1 and Figure 2A lifting mechanism 2 is fixedly installed on the trailer 1. The lifting mechanism 2 includes a fixed back plate 21, a lead screw 22, at least one guide rod 23, and a lifting drive motor 24. The fixed back plate 21 is fixed to the trailer 1, the lifting drive motor 24 drives the lead screw 22, and the guide rods 23 are arranged parallel to each other on one side of the lead screw 22 for guidance. In this embodiment, to reduce weight, the fixed back plate 21 has a hollow structure.

[0023] See Figure 3 , Figure 5 and Figure 6 A pitch mechanism 3 is mounted on top of the lifting mechanism 2. The pitch mechanism 3 includes a pitch support 31, a first electric push rod 32, and a pitch shaft 33. The pitch support 31 is connected to the lifting mechanism 2, allowing the lifting mechanism 2 to drive the entire pitch mechanism 3 to rise and fall. The pitch support 31, the first electric push rod 32, and the pitch shaft 33 are connected to form a triangular structure. By controlling the extension and retraction of the first electric push rod 32, the shape of this triangle can be changed, thereby driving the pitch shaft 33 to achieve pitch movement.

[0024] At each end of the pitch axis 33, an antenna system mounting base 5 is installed, and the two antenna system mounting bases 5 can move in pitch along with the pitch axis 33. In this embodiment, the first electric actuator 32 can also be a purely actuator driven by a motor. For example, the first electric actuator 32 can be extended or retracted by a pitch drive motor 34. The transmission connection between the pitch drive motor 34 and the first electric actuator 32 is an existing structure and will not be described in detail here.

[0025] Finally, there is the azimuth mechanism 4, which is mounted on the pitch mechanism 3. This azimuth mechanism 4 includes a second electric actuator 41, a connecting rod 42, and two azimuth shafts 43. The two azimuth shafts 43 are located at both ends of the pitch shaft 33 and are perpendicularly connected to it. The antenna system mounting base 5 is rotatably connected to the azimuth shafts 43. One end of the second electric actuator 41 is hinged to the antenna system mounting base 5, and both ends of the connecting rod 42 are hinged to the two antenna system mounting bases 5. Thus, the two antenna system mounting bases 5, the connecting rod 42, and the azimuth shafts 43 on both sides together form a parallelogram structure. When the second electric actuator 41 extends or retracts, it drives the parallelogram structure to move, thereby forcing the two antenna system mounting bases 5 to rotate synchronously and at the same angle around their respective azimuth shafts 43, achieving precise azimuth movement and effectively solving the problem of asynchronous azimuth pointing mentioned in the background art. In this embodiment, the second electric actuator 41 can also be a purely actuator driven by a motor. For example, the second electric push rod 41 is driven by the orientation drive motor 45 to generate telescopic movement. The transmission connection between the orientation drive motor 45 and the second electric push rod 41 is an existing structure, which will not be described in detail here.

[0026] This embodiment solves the mobility problem by using trailer 1, and compactly and reliably achieves the three-dimensional motion requirements of the antenna feeder system through a combination of lead screw lifting, triangular pitch, and parallelogram azimuth. Furthermore, the lifting mechanism 2, pitch mechanism 3, azimuth mechanism 4, and two antenna feeder system mounting bases 5 work together, exhibiting high integration, simple structure, and convenient adjustment.

[0027] To improve transmission translation and protect the motor, see [link / reference]. Figure 4 and Figure 5 In one example, the lifting drive motor 24 and the lead screw 22 are connected by a flexible coupling 25. This flexible coupling 25 can effectively compensate for minor alignment errors that may exist between the motor shaft and the lead screw shaft, absorb the impact during start-up and shutdown, make the transmission smoother, and reduce component wear and noise caused by misalignment, thus extending the service life of the equipment.

[0028] To further enhance the stability of the lifting process and prevent load deflection. See also Figures 1 to 5 In one example, there are two guide rods 23, which are located on opposite sides of the lead screw 22. This symmetrical layout ensures that the pitch support 31 is subjected to uniform force during lifting and lowering, better resists off-center load torque, completely prevents the load from deflecting or jamming during lifting and lowering, ensures the linearity and smoothness of the movement, and improves measurement accuracy.

[0029] See Figures 5 to 7 In one example, a specific connection method between the lifting mechanism 2 and the pitch support is provided to achieve stable and reliable linear motion of the pitch mechanism 3. A nut 26 is fixedly installed on the pitch support 31, and the nut 26 is threadedly connected to the lead screw 22. At the same time, a guide block 27 is also fixedly installed on the pitch support 31, and the guide block 27 is sleeved on the guide rod 23. When the lead screw 22 rotates, the nut 26 drives the pitch support 31 to move along the lead screw axis, and the guide block 27 slides on the guide rod 23, forming a stable and reliable linear motion unit. To further protect the transmission components, a bellows 28 can be sleeved on the outside of the lead screw 22 and the guide rod 23 (see...). Figure 8 ).

[0030] See Figure 6 and Figure 7 In one example, the pitch support 31 includes a plate 311 and support plates 312 spaced apart on both sides of the plate 311, with the two support plates 312 arranged in parallel. The pitch shaft 33 passes through the two support plates 312 and is connected to the support plates 312 via bearings. This structure provides two stable support points for the pitch shaft 33, ensuring that the pitch shaft 33 can rotate smoothly under force, thus improving the stiffness and accuracy of the pitch motion.

[0031] See Figure 1, Figure 6 and Figure 7 In one example, the azimuth mechanism 4 also includes a support base 44 located between two support plates 312 and fixedly connected to the pitch axis 33. One end of the first electric actuator 32 is hinged to the plate 311 of the pitch support 31, and the other end is hinged to the support base 44. Simultaneously, one end of the second electric actuator 41 is hinged to the antenna system mounting base 5, and the other end is also hinged to the support base 44. This design, which integrates the fixed ends of the first and second electric actuators onto the same support base 44, makes the force path more direct, the structure more compact, and greatly improves the overall stiffness and response speed during pitch and azimuth movements.

[0032] In this embodiment, the antenna feed system mounting base 5 can be a single, integrated structure, with features (e.g., threaded holes) for mounting the antenna feed system. To facilitate replacement and maintenance of the antenna feed system, in one example, the antenna feed system mounting base 5 includes a mounting body 51 and an antenna mounting plate 52. The mounting body 51 is connected to the azimuth axis 43 via bearings. The antenna mounting plate 52 is detachably mounted (e.g., via bolts) to one side of the mounting body 51 and has standardized mounting interfaces for mounting the antenna 7. This modular design makes antenna disassembly, replacement, and maintenance very convenient.

[0033] To further improve system integration and reduce signal loss. See also... Figure 6 and Figure 7 The antenna system mounting base 5 also includes a power amplifier module mounting plate 53. This power amplifier module mounting plate 53 is detachably mounted on the other side of the mounting base 51 and has a mounting interface for mounting the power amplifier module 6 of the antenna system. This adjacent installation integrated design tightly combines the antenna and its power amplifier module, significantly shortening the length of the RF cable between them, reducing signal transmission loss, and making the equipment layout more compact and neat.

[0034] In one example, a cabinet 8 is also integrated on trailer 1 (see...). Figure 8 The cabinet 8 houses all electrical components of the electromagnetic measurement system, including the signal processing unit, control unit, and power supply. Thus, the mechanical framework and electrical system of the entire electromagnetic measurement system are highly integrated onto the unified platform of the trailer 1, greatly improving the portability and rapid field deployment capabilities of the equipment.

[0035] Example 2 See Figure 8This embodiment also provides an electromagnetic measurement system, which includes a movable three-dimensional motion frame for the electromagnetic measurement system as described in any of the above embodiments. This frame supports and drives the antenna system of the system to complete three-dimensional motion, while other electrical components of the electromagnetic measurement system are integrated and installed within the cabinet 8 of the trailer 1. This electromagnetic measurement system possesses excellent mobility, rapid deployment capability, high-precision spatial pointing capability, and a high degree of integration.

[0036] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and not to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that not every embodiment contains only one independent technical solution, and in the absence of conflict between solutions, the various technical features mentioned in each embodiment can be combined in any way to form other implementation methods that can be understood by those skilled in the art.

[0037] Furthermore, without departing from the scope of the present invention, modifications to the technical solutions described in the foregoing embodiments, or equivalent substitutions of some of the technical features, shall not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A movable electromagnetic measurement system three-dimensional motion frame, characterized in that, The electromagnetic measurement system three-dimensional motion frame comprises: a trailer; a lifting mechanism fixedly installed on the trailer and used for realizing lifting movement of a pitching mechanism and an azimuth mechanism; the pitching mechanism installed on the lifting mechanism; the azimuth mechanism installed on the pitching mechanism and used for installing a sky-feed system; the lifting mechanism comprises a fixed back plate, a lead screw, guide rods and a lifting drive motor, the fixed back plate is fixed on the trailer, the drive motor is drivingly connected with the lead screw, and the guide rods are arranged in parallel and at intervals on one side of the lead screw; the pitching mechanism comprises a pitching support, a first electric push rod and a pitching shaft, the pitching support is connected with the lifting mechanism, the pitching support, the first electric push rod and the pitching shaft form a triangular structure, and the pitching shaft realizes pitching movement through extension and retraction of the first electric push rod; two sky-feed system mounting seats are respectively installed at two ends of the pitching shaft and can move with the pitching shaft; the azimuth mechanism comprises a second electric push rod, a connecting rod and azimuth shafts, the two azimuth shafts are arranged at two ends of the pitching shaft and are perpendicularly connected with the pitching shaft, each of the sky-feed system mounting seats is rotationally connected with the corresponding azimuth shaft, one end of the second electric push rod is connected with the sky-feed system mounting seat, and two ends of the connecting rod are hingedly connected with the two sky-feed system mounting seats, and the two sky-feed system mounting seats are synchronously rotated relative to the respective azimuth shafts through extension and retraction of the second electric push rod.

2. The electromagnetic measurement system three-dimensional motion frame of claim 1, wherein: The lifting drive motor is connected with the lead screw through a flexible coupling.

3. The electromagnetic measurement system three-dimensional motion frame of claim 1, wherein: The guide rods are two, and the two guide rods are respectively located at two sides of the lead screw.

4. The electromagnetic measurement system three-dimensional motion frame of claim 1, wherein: A nut is fixedly installed on the pitching support, the nut is threadedly connected with the lead screw, a guide block is also fixedly installed on the pitching support, the guide block is sleeved on the guide rod, and the pitching support moves along the axial direction of the lead screw when the lead screw rotates.

5. The electromagnetic measurement system three-dimensional motion frame of claim 4, wherein: The pitching support comprises a plate body and support plates arranged at two sides of the plate body in an interval, the two support plates are arranged in parallel and at an interval, the pitching shaft passes through the two support plates and is connected with the support plates through bearings.

6. The electromagnetic measurement system three-dimensional motion frame of claim 5, wherein: The azimuth mechanism further comprises a support seat, the support seat is located between the two support plates, the pitching shaft is fixedly connected with the support seat, one end of the first electric push rod is hingedly connected with the plate body, and the other end is hingedly connected with the support seat, one end of the second electric push rod is hingedly connected with one of the sky-feed system mounting seats, and the other end is hingedly connected with the support seat.

7. The electromagnetic measurement system three-dimensional motion frame of claim 1, wherein: The sky-feed system mounting seat comprises a mounting seat body and an antenna mounting plate, the mounting seat body is connected with the azimuth shaft through a bearing, the antenna mounting plate is detachably installed on one side of the mounting seat and is used for installing an antenna.

8. The electromagnetic measurement system three-dimensional motion frame of claim 7, wherein: The sky-feed system mounting seat further comprises a power amplifier module mounting plate, the power amplifier module mounting plate is detachably installed on the other side of the mounting seat, an installation interface of the power amplifier module is arranged on the power amplifier module mounting plate and is used for installing a power amplifier module of the sky-feed system.

9. The electromagnetic measurement system three-dimensional motion frame of claim 1, wherein: The trailer further integrally has a cabinet used for accommodating electrical components of the electromagnetic measurement system.

10. An electromagnetic survey system characterized by: The electromagnetic measurement system three-dimensional motion frame comprises any one of claims 1-9.

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