T-shaped track system with high-load translation trolley in darkroom

Abstract

The invention relates to the technical field of anechoic chambers, and discloses a T-shaped track system with a high-load translation trolley in an anechoic chamber, which comprises a transverse guide rail, a longitudinal guide rail, a translation trolley, a reversing turntable and a turnover reset device, the reversing turntable is arranged at the intersection of the longitudinal guide rail and the transverse guide rail, and a reversing track is arranged on the reversing turntable; the reversing rotary table rotates in a plane around a central shaft of the reversing rotary table, so that the reversing track is selectively butted with the transverse guide rail or the longitudinal guide rail; an overturning reset device is fixed to the groove, and a wave-absorbing material is installed on the top face of the overturning reset device and used for covering the opening of the groove. The problem of multi-device dynamic scheduling in an RCS darkroom is solved, safe translation of large-inertia equipment can be ensured, and meanwhile secondary scattering of a guide rail to a test can be reduced.

Description

Technical Field

[0001] This invention relates to the field of microwave anechoic chamber technology, and in particular to a T-shaped track system for a high-load-bearing translational trolley inside an anechoic chamber. Background Technology

[0002] In large, compact anechoic chambers, dynamic scheduling of multiple devices, such as RCS test turntables, low-scatter metal supports, and antenna test turntables, is required depending on the specific testing requirements. This necessitates the movement and repositioning of equipment between testing and storage areas to avoid mutual interference during testing. Rail transport is commonly used for the transfer and placement of these large devices. Traditional guide rails often employ a fixed, single-direction layout, requiring manual intervention or complex mechanical adjustments for equipment switching. These rail systems struggle to adapt to the mobile storage needs of test equipment of varying sizes, lack multi-device collaborative positioning capabilities, and suffer from low testing efficiency. Furthermore, the rails themselves can cause secondary scattering, introducing errors into the test data.

[0003] Patent CN116161390A, "A Transfer and Tilting Device for Low-Scattering Heavy-Duty Metal Supports," proposes a transfer and tilting device for low-scattering heavy-duty metal supports. The bottom of the transfer platform is used to move along a guide track, and the free end of the low-scattering heavy-duty metal support is used to connect to a multi-dimensional turntable. However, this device only handles the transfer of a single device and does not address the dynamic scheduling of multiple devices within an anechoic chamber. Additionally, patent CN207396615U, "RF Simulation Anechoic Chamber Absorbing Material Tilting and Resetting Mechanism," proposes a anechoic chamber absorbing material tilting and resetting mechanism. The top of the lifting bracket can be tilted and connected to one side of the bottom surface of the absorbing material module, which can be used for tilting and resetting absorbing materials on a track. However, its structure is a single-sided tilting mechanism, limiting the applicable track size. Summary of the Invention

[0004] The purpose of this invention is to provide a T-shaped track system with a high-load translation trolley in a dark room, which solves the problem of dynamic scheduling of multiple devices and the requirement for stable track operation under high load of the translation trolley, ensuring the safe translation of large inertial devices, while reducing the secondary scattering caused by the guide rail itself to the test.

[0005] This invention is achieved through the following scheme: A T-shaped track system for a heavy-duty translating trolley in a dark room includes: a T-shaped track set in a trench, the T-shaped track including a transverse guide rail and a longitudinal guide rail, the longitudinal guide rail intersecting the transverse guide rail at the midpoint of the transverse guide rail; a reversing turntable is set at the intersection, the reversing turntable has a reversing track, the reversing turntable rotates in a plane around its central axis, so that the reversing track selectively docks with the transverse guide rail or the longitudinal guide rail; a flip-and-reset device is connected to the trench, the flip-and-reset device is connected to the trench through a fixed base, and the top surface of the flip-and-reset device is installed with a wave-absorbing material to cover the trench opening; at least one translating trolley is on the T-shaped track.

[0006] Furthermore, the translation trolley includes a frame, a wheel set located at the bottom of the frame, and a motor drive mechanism for driving the wheel set; the translation trolley also includes multiple anti-tipping clamping devices, with one anti-tipping clamping device located next to each wheel set.

[0007] Furthermore, the anti-tipping clamping device includes follower wheels and clamping rollers installed on both sides of the track. When the translation trolley is traveling normally, the follower wheels and clamping rollers approach the guide groove on the side wall of the track and have a gap with the guide groove. When the translation trolley tilts to the side, the follower wheels roll into contact with the guide groove, indicating the danger of tipping over. When the translation trolley reaches the predetermined point of the reversing turntable, the electric cylinder drives the lifter in the anti-tipping clamping device to move the clamping rollers upward, and the clamping rollers contact the top surface of the guide groove and clamp the track.

[0008] Furthermore, distance sensors are installed on the front and rear end faces of the chassis in the direction of movement.

[0009] Furthermore, the transverse and longitudinal guide rails are installed on the sleepers via rail clamps, and the sleepers are fixed to the foundation by anchor bolts, with a rail spacing of 2000mm.

[0010] Furthermore, both the transverse and longitudinal guide rails are equipped with limiting buffer devices at their ends.

[0011] Furthermore, multiple flipping and resetting devices are installed along the length of the trench, unfolding from both sides of the trench toward the middle to cover the trench opening.

[0012] Furthermore, the flipping and resetting device includes a fixed base, which is fixed in the groove. One end of the first-stage push rod is connected to the fixed base, and the other end is connected to the first-stage flip plate. The first-stage flip plate is flipped by the extension and retraction movement of the first-stage push rod. The first end of the second-stage flip plate and the second end of the first-stage flip plate are hinged. A flipping mechanism is set at the hinge to drive the second-stage flip plate to flip relative to the first-stage flip plate. The first-stage flip plate and the second-stage flip plate have an unfolded state with their front sides flush and a folded and reset state with their back sides touching.

[0013] Furthermore, the adjacent edges of the first-stage and second-stage flip plates form a docking edge line; the flipping mechanism includes a rotating shaft and two spaced-apart support legs. The rotating shaft is located between the two support legs, and its axis is parallel to the docking edge line. The two support legs are respectively fixedly connected to the back of the first-stage flip plate and the back of the second-stage flip plate. The first-stage and second-stage flip plates rotate relative to each other around the axis of the rotating shaft.

[0014] Furthermore, the translation trolley moves between the longitudinal testing area and the transverse storage area. The longitudinal testing area is equipped with corresponding test positions, and the transverse storage area is equipped with corresponding hidden positions. When the translation trolley needs to move, the flip-and-reset devices at each location fold and retract, allowing the translation trolley to pass through. When the translation trolley enters the corresponding test position and hidden position, the flip-and-reset devices at each location unfold to cover the trench.

[0015] In summary, due to the adoption of the above technical solution, the beneficial effects of the present invention are: The combined structure of T-shaped intersecting tracks and a reversing turntable solves the challenge of dynamic scheduling of multiple devices under limited anechoic chamber space. The wave-absorbing material in the guide rail area, combined with an electric flip-and-reset device, shields the guide rails, reducing secondary scattering that could affect the test. This design also covers a wider range of wide-spacing guide rails, making it more compatible. The translation trolley features an integrated anti-tipping device and clamping mechanism to ensure safe translation of high-inertia equipment. Furthermore, the installation method combining track steel and chemical anchors enhances system stability. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of the track system of the present invention and the transport of the test support; Figure 2 This is a schematic diagram of the limiting buffer device of the track system of the present invention; Figure 3 This is a schematic diagram of the rail clamp and track structure of the track system of the present invention; Figure 4 This is a side view schematic diagram of the translation trolley structure of the track system of the present invention; Figure 5 This is a schematic diagram of the clamping state of the translation trolley in the track system of the present invention; Figure 6 This is a schematic diagram of the anti-tipping state of the translation trolley in the track system of the present invention; Figure 7 This is a schematic diagram of the flipping and resetting device of the track system of the present invention; Figure 8 This is a schematic diagram of the folded state of the flipping and resetting device of the track system of the present invention; Figure 9 This is a schematic diagram of the unfolded state of the flip-reset device during the test of the track system of the present invention; Figure label: 100a-Transverse guide rail; 100b-Longitudinal guide rail; 101-Limit buffer device; 102-Limit stop; 103-Rail clamp; 104-Sleeper; 200-Transfer trolley; 201-Frame; 202-Wheel set; 204-Motor drive; 205-Distance sensor; 210-Anti-tipping clamping device; 211-Follower wheel; 212-Clamping roller; 213-Guide groove; 300-Reversing turntable; 400-Tilting and resetting device; 401-Fixed base; 402-First-stage push rod; 403-First-stage flip plate; 404-Second-stage flip plate; 405-Tilting mechanism; 406-Wave absorption material; 407-Rotating shaft; 408-Support leg. Detailed Implementation

[0017] All features disclosed in this specification, or all steps in all disclosed methods or processes, may be combined in any way, except for mutually exclusive features and / or steps.

[0018] Any feature disclosed in this specification (including any appended claims and abstract) may be replaced by other equivalent or similar features, unless specifically stated otherwise. That is, unless specifically stated otherwise, each feature is merely one example of a series of equivalent or similar features.

[0019] In the description of this invention, it should be understood that the terms "upper", "lower", "left", "right", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0020] Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first," "second," etc., may explicitly or implicitly include one or more of that feature.

[0021] The following describes in detail the T-shaped track system for a high-load-bearing translational trolley in a dark room according to the present invention, with reference to its specific structure and principle. Figures 1-9 As shown, it mainly includes a T-shaped track network, a translation trolley 200, an electric reversing turntable 300, and an electric flipping and resetting device 400.

[0022] like Figure 1 As shown, the T-shaped track in the trench has a transverse guide rail 100a and a longitudinal guide rail 100b. The longitudinal guide rail 100b intersects with the transverse guide rail 100a at the midpoint. A reversing turntable 300 is set at the intersection point, and a reversing track is mounted on the reversing turntable 300. The reversing track is flush with the height of the transverse guide rail 100a and the longitudinal guide rail 100b. The reversing turntable 300 rotates in a plane around its central axis, allowing the reversing track to selectively engage with either the transverse guide rail 100a or the longitudinal guide rail 100b. The translation trolley 200 slides on the guide rail, and the switching between the transverse and longitudinal guide rails 100b is completed through the reversing turntable 300. The combined structure of the T-shaped intersecting track and the reversing turntable 300 solves the problem of dynamic scheduling of multiple devices under the limited space conditions of the anechoic chamber. Depending on the different testing requirements, the translation trolley 200 carries the RCS test turntable, low-scatter metal bracket, and antenna test turntable to move and reposition in the test area and storage area respectively, avoiding mutual interference during testing.

[0023] like Figures 2-3As shown, the T-shaped track uses rail steel and is installed on sleepers 104 via rail clamps 103. The preferred track spacing is 2000mm, which is suitable for supporting heavy, high-inertia equipment. The sleepers 104 are fixed to the foundation with chemical anchors to improve system stability. The wheel set 202 moves on the track. To prevent the translation trolley 200 from derailing in the event of electrical switch failure, limit buffer devices 101 are installed at the ends of the T-shaped track. Rigid limit blocks 102 on the limit buffer devices 101 restrict the movement of the translation trolley 200.

[0024] like Figure 4 As shown, the translation trolley 200 includes a frame 201, wheel sets 202, and a motor drive mechanism 204. The frame 201 is a welded steel structure, and all steel plates are shot-blasted to straighten them and give them sufficient rigidity and strength. Stress relief treatment is performed after welding. Four sets of steel wheels are distributed at the four corners of the bottom of the translation trolley 200, and bearing seats are distributed at eight points to bear the load, with each of the eight points bearing a uniform force. The four sets of steel wheels bear the load and the total weight of the frame 201. The motor drive mechanism 204 and other components are all arranged inside the translation trolley 200. Distance sensors 205 are installed on the front and rear end faces of the frame 201 in the direction of movement for detection. The sensors are reflective lasers with an adjustable detection distance of 30-2000mm. By setting a predetermined distance, the laser reflector detects whether there are obstacles within the preset distance range when moving forward or backward. The motor drive 204 part includes a servo motor drive 204 and a dual-output shaft reducer. The servo motor drive 204 and the dual-output shaft reducer drive the wheel set 202 to move, which is smooth, quiet and has high transmission efficiency.

[0025] like Figures 5-6As shown, in this embodiment, each wheel set 202 is equipped with an anti-tipping clamping device 210. The anti-tipping mechanism and the clamping mechanism are integrated into one design, and their brackets are fixed to the frame 201 to ensure the absolute stability and safety of the translation trolley 200 and the equipment above it during operation or testing. Specifically, the anti-tipping clamping device 210 includes inner and outer follower wheels 211 and clamping rollers 212 on both sides of the track. When the translation trolley 200 is traveling normally, the follower wheels and clamping rollers approach the guide groove 213 on the side wall of the track and have a gap with the guide groove 213. The wheels do not contact the groove wall and do not hinder the normal travel of the trolley. When the translation trolley 200 and the equipment are in an accident and there is a possibility of overturning, the follower wheel 211 at the overturning end will first contact the guide groove 213. This action can indicate an overturning alarm. At the same time, the robust and stable mechanical structure resists the overturning moment and transmits the overturning moment to the ground guide rail and then to the ground concrete foundation, thereby ensuring the safety of the translation trolley 200 and the equipment. When the translation trolley 200 reaches the predetermined position on the reversing turntable, the electric cylinder drives the lifter in the anti-tipping clamping device 210 to move the clamping roller 212 upward. The clamping roller 212 contacts the top surface of the guide groove 213 and clamps the track to secure the translation trolley 200 to the reversing turntable.

[0026] like Figure 7 As shown, the flipping and resetting device of the present invention includes a fixed base 401, a first-stage push rod 402, a flipping mechanism 405, a first-stage flip plate 403, and a second-stage flip plate 404. The fixed base 401 is fixedly connected to the side of the trench by chemical anchors. The first-stage push rod 402 is connected to the fixed base 401. The telescopic push rod end of the first-stage push rod 402 is connected to one end of the first-stage flip plate 403 to support and control the swing of the first-stage flip plate 403. The telescopic movement of the first-stage push rod 402 can control the flipping movement of the first-stage flip plate 403. The first-stage flip plate 403 and the second-stage flip plate 404 are connected by a hinge. The flipping mechanism 405 controls the flipping and resetting of the first-stage flip plate 403 and the second-stage flip plate 404. The motor reducer is fixed to the back of the first-stage flip plate 403. The output shaft of the reducer is connected to the rotating shaft 407 to drive the second-stage flip plate 404 to perform a flipping movement. The top surface of the first-stage flip plate 403 and the second-stage flip plate 404 is equipped with wave-absorbing material 406, thereby realizing the electric opening and closing of the wave-absorbing material 406 on the trench.

[0027] The flipping and resetting device 400 of this embodiment includes two legs 408 spaced a certain distance apart. The adjacent edges of the first-stage flip plate 403 and the second-stage flip plate 404 form a mating edge line. The two legs 408 are connected to the mating edge of the first-stage flip plate 403 and the second-stage flip plate 404 and are respectively fixedly connected to the back of the first-stage flip plate 403 and the back of the second-stage flip plate 404. Between the two legs 408 is a rotating shaft 407. The axis of the rotating shaft 407 is parallel to the mating edge line. The structure of the legs 408 and the rotating shaft 407 increases the flexibility of the flipping mechanism 405, so that the plate can be hinged and flipped on its back, so that the wave-absorbing material 406 on the front of the first-stage flip plate 403 and the second-stage flip plate 404 are tightly spliced.

[0028] like Figure 8 , Figure 9 As shown, multiple flip-reset devices 400 are arranged on the groove, forming a double-sided multi-level absorbing material flip-reset structure. Specifically, in the longitudinal test area, the flip-reset devices 400 are fixed along the two edges of the groove along its length. They unfold from both sides of the groove towards the middle to cover it, with the unfolded width equal to the groove width, making it suitable for wide-spacing, large-size tracks. The transverse guide rail 100a and the longitudinal guide rail 100b are divided into a longitudinal test area and a transverse storage area. Test positions are correspondingly set in the longitudinal test area, and hidden positions are correspondingly set in the transverse storage area. The translation trolley 200 moves between the longitudinal test area and the transverse storage area. When the translation trolley 200 needs to move, the electric flip-reset devices fold and retract, allowing the translation trolley 200 to pass freely. When the translation trolley 200 enters the corresponding test position or hidden position, the remaining electric flip-reset devices unfold, covering the track groove and eliminating the influence of metal parts on the test. During the process, when the translation trolley 200 moves to the designated position on the reversing turntable, it performs a fixed-point clamping action on the reversing turntable. After the translation trolley 200 is firmly held on the reversing turntable, the reversing turntable rotates, causing the test equipment bracket to enter the longitudinal test area and the transverse storage area.

[0029] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A T-shaped track system with a high-load-bearing translational trolley in a darkened room, characterized in that, include: A T-shaped track is set in the trench. The T-shaped track includes a transverse guide rail (100a) and a longitudinal guide rail (100b). The longitudinal guide rail (100b) intersects the transverse guide rail (100a) at the midpoint of the transverse guide rail (100a). A reversing turntable (300) is set at the intersection. The reversing turntable (300) has a reversing track on it. The reversing turntable (300) rotates in a plane around its central axis, so that the reversing track selectively docks with the transverse guide rail (100a) or the longitudinal guide rail (100b). A flip-and-reset device (400) is connected to the trench. The flip-and-reset device (400) is connected to the trench through a fixed base (401). The top surface of the flip-and-reset device (400) is equipped with a wave-absorbing material (406) to cover the trench opening. There is at least one translation trolley (200) on the T-shaped track.

2. The T-shaped track system with a high-load-bearing translational trolley in a darkened room as described in claim 1, characterized in that, The translation trolley (200) includes a frame (201), a wheel set (202) disposed at the bottom of the frame (201), and a motor drive (204) mechanism for driving the wheel set (202); the translation trolley (200) also includes multiple anti-tipping clamping devices (210), with an anti-tipping clamping device (210) provided next to each wheel set (202).

3. The T-shaped track system with a high-load-bearing translational trolley in a darkened room as described in claim 2, characterized in that, The anti-tipping clamping device (210) includes a follower wheel (211) and a clamping roller (212) set on both sides of the track. When the translation trolley (200) is traveling normally, the follower wheel (211) and the clamping roller (212) approach the guide groove (213) on the side wall of the track and have a gap with the guide groove (213). When the translation trolley (200) tilts to the side, the follower wheel (211) rolls into contact with the guide groove (213). When the translation trolley (200) reaches the predetermined position of the reversing turntable (300), the electric cylinder drives the lifter in the anti-tipping clamping device (210) to drive the clamping roller (212) to move upward. The clamping roller (212) contacts the top surface of the guide groove (213) and clamps the track.

4. The T-shaped track system with a high-load-bearing translational trolley in a darkened room as described in claim 2, characterized in that, Distance sensors (205) are provided on the front and rear end faces of the frame (201) in the direction of movement.

5. The T-shaped track system with a high-load-bearing translational trolley in a darkened room as described in claim 1, characterized in that, The transverse guide rail (100a) and longitudinal guide rail (100b) are installed on the sleepers (104) by rail clamps (103), and the sleepers (104) are fixed to the foundation by anchor bolts, with a track spacing of 2000mm.

6. The T-shaped track system with a high-load-bearing translational trolley in a darkened room as described in claim 1, characterized in that, Both the transverse guide rail (100a) and the longitudinal guide rail (100b) are equipped with limiting buffer devices (101) at their ends.

7. The T-shaped track system with a high-load-bearing translational trolley in a darkened room as described in claim 1, characterized in that, Multiple of the aforementioned flip-reset devices (400) are installed along the length of the groove, and unfold from both sides of the groove toward the middle to cover the groove opening.

8. The T-shaped track system with a high-load-bearing translational trolley in a darkened room as described in claim 7, characterized in that, The flipping and resetting device (400) includes a fixed base (401) fixed in a groove. One end of a first-stage push rod (402) is connected to the fixed base (401), and the other end is connected to a first-stage flip plate (403). The first-stage flip plate (403) is flipped by the extension and retraction movement of the first-stage push rod (402). The first end of the second-stage flip plate (404) is hinged to the second end of the first-stage flip plate (403). A flipping mechanism (405) is provided at the hinge to drive the second-stage flip plate (404) to flip relative to the first-stage flip plate (403). The first-stage flip plate (403) and the second-stage flip plate (404) have an unfolded state with their front sides flush and a folded reset state with their back sides touching.

9. A T-shaped track system with a high-load-bearing translational trolley in a darkened room as described in claim 8, characterized in that, The adjacent edges of the first-stage flip plate (403) and the second-stage flip plate (404) form a docking edge line; the flipping mechanism (405) includes a rotating shaft (407) and two spaced-apart support legs (408). The rotating shaft (407) is located between the two support legs (408), and its axis is parallel to the docking edge line. The two support legs (408) are respectively fixedly connected to the back of the first-stage flip plate (403) and the back of the second-stage flip plate (404). The first-stage flip plate (403) and the second-stage flip plate (404) rotate relative to each other around the axis of the rotating shaft (407).

10. A T-shaped track system with a high-load-bearing translational trolley in a darkened room as described in claim 1, characterized in that, The translation trolley (200) moves between the longitudinal test area and the transverse storage area. The longitudinal test area is equipped with corresponding test positions, and the transverse storage area is equipped with corresponding hidden positions. When the translation trolley (200) needs to move, the flip-reset devices (400) at each location fold and retract, and the translation trolley (200) passes through. When the translation trolley (200) enters the corresponding test position and hidden position, the flip-reset devices (400) at each location unfold to cover the trench.

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