A three-axis wheel-track type double gear structure antenna mounting device

Abstract

The present invention discloses a three-axis wheel-track type double gear structure antenna mount device, which relates to antenna technology in the fields of communication, measurement and control, radar and radio astronomy. It aims to provide an antenna mount that can track targets in the entire airspace, has high rigidity, strong anti-overturning ability, large space for operating equipment and is not easy to lose stability. It includes a cross-axis mechanism, a pitch mechanism, an azimuth mechanism, a central tower base and a track. The azimuth mechanism adopts a double-layer lattice structure composed of triangular grids, and is driven by rollers, and the roller configuration is one-to-two, two-to-four and four-to-eight; the pitch mechanism adopts a double-gear drive form, and the pitch mechanism platform is a two-ring double-layer truss structure; the cross-axis mechanism also adopts a double-gear drive form; the central pivot stiffness is increased by adding a central tower base. The present invention effectively improves the overall rigidity and wind load resistance of the mount structure, and is particularly suitable for the design and manufacture of large and super-large antenna mounts.

Description

Technical Field

[0001] The present invention relates to antenna technology in the fields of communication, measurement and control, radar and radio astronomy, and more specifically, to a three-axis wheel-rail type double gear structure antenna mounting device. Background Art

[0002] Reflector antennas are widely used in the fields of communication, measurement and control, and radio astronomy due to their strong directivity. In particular, large-aperture antennas play an important role in deep space communication and astronomical observation due to their high gain and high resolution. Reflectors usually use two-axis rotation, i.e., azimuth-pitch or XY rotation modes. Although these two modes can make the antenna beam point to cover the entire airspace, they have the following defects:

[0003] (1) There is a "blind cone area". Traditional antennas use a two-axis system, but both two-axis antennas have a "blind cone area". For example, the "blind cone area" of the azimuth-elevation mode is at the zenith position; while the "blind cone area" of the XY mode is at the horizontal position. If the target is located in the "blind cone area", the antenna cannot track the target.

[0004] (2) Single gear drive cannot meet the beam waveguide feeding requirements. When a large antenna is driven by a single gear, the gear is located in the middle of the mount and the beam waveguide is located in an offset position. In order to avoid motion interference, the load-bearing rod connected to the gear must be removed, causing asymmetric deformation of the structure and reducing the antenna surface accuracy.

[0005] (3) The mount has weak anti-overturning ability. In the traditional azimuth mount structure, the central pivot is usually located at the bottom of the mount. The horizontal load of the mount needs to be transmitted over a long distance through the oblique support to reach the pivot position, which will increase the structural deformation of the mount and affect the performance of the antenna. When the central pivot is at the bottom of the mount, the antenna's resistance to wind load disturbance and anti-overturning moment is reduced, which reduces the dynamic performance of the antenna.

[0006] The Chinese patent with publication number CN109301452A discloses a S / X / Ka three-axis antenna; the Chinese patent with publication number CN210984915U discloses a large-caliber antenna uniform load support structure; the Chinese patent with publication number CN111740207A discloses a three-point load-bearing large-scale heavy-load high-precision two-dimensional mechanical phase-scanning radar antenna seat. The above three patents respectively involve a three-axis seat frame, a single gear pitch structure and a box beam structure seat frame. For large antenna seats, there are the following deficiencies:

[0007] (1) The antenna mount involved in the first patent adopts a three-axis type. It solves the problem of over-the-top tracking by adding an inclined azimuth axis under the traditional azimuth-pitch type mount. However, this method is not suitable for large reflector antennas: first, its azimuth and tilt axis combination modules are both turntable-type. Due to the size limitation of the turntable bearing, the anti-overturning ability is weak. When the antenna diameter increases, it cannot meet the stiffness requirements; second, because the tilt axis and azimuth axis combination module adopts a set angle method, its over-the-top tracking range is subject to certain limitations.

[0008] (2) The second patent involves a single gear pitch structure, which is generally used in traditional large reflector antennas. Although this structure has certain advantages in terms of antenna surface accuracy, its small rear-end space limits its application, especially when multi-band, beam waveguide and frequency selective surface feeding are used. This traditional method cannot meet the use requirements.

[0009] (3) The antenna mount involved in the third patent is a box beam structure and is heavy. The central pivot is located at the bottom of the mount, and the force transmission path is long, which reduces the ability of the mount to withstand horizontal loads. Each set of roller mechanisms contains only two rollers. When the antenna diameter increases and the antenna weight increases, the bearing capacity of a single wheel is limited. Summary of the invention

[0010] The purpose of the present invention is to overcome the shortcomings of the prior art and provide a three-axis wheel-rail type double gear structure antenna mount device. Compared with the prior art, it has the characteristics of full airspace tracking, high mount rigidity, beam waveguide feeding, strong anti-overturning ability, and large space for antenna receiving and transmitting equipment. The antenna mount device of the present invention adopts a three-axis mount system, the azimuth mechanism is driven by rollers, and a double-layer lattice structure is adopted. The pitch mechanism and the cross-axis mechanism are driven by double gears, and the center pivot height is increased by adding a center tower. The above method effectively improves the overall rigidity and wind load resistance of the mount structure, and is particularly suitable for the design and manufacture of mounts for large and ultra-large antennas.

[0011] In order to solve the above technical problems, the present invention is implemented through the following technical solutions.

[0012] A three-axis wheel-track type double-gear structure antenna mounting device comprises: a cross-axis mechanism, a pitch mechanism, an azimuth mechanism, a central tower base and a track; the central tower base and the track are located on the ground; the azimuth mechanism is located above the central tower base and the track, with the axis perpendicular to the ground, adopts a double-layer lattice structure, and provides azimuth rotation for the antenna system through a roller mechanism; the pitch mechanism is located above the azimuth mechanism, with the axis parallel to the ground, adopts a double-gear drive form, the double gears are located in the middle of the pitch mechanism, connected to an integral structure through a truss, and provide pitch rotation for the antenna system; the cross-axis mechanism is located above the pitch mechanism, with the axis parallel to the ground and perpendicular to the axis of the pitch mechanism, adopts a double-gear drive form, the double gears are located on both sides of the cross-axis mechanism and connected to an integral structure through a truss, and provide cross-axis rotation for the antenna system.

[0013] Furthermore, the upper part of the cross-axis mechanism is connected to the antenna reflector, and is composed of a double gear, a connecting frame and a rotating shaft; the double gears are arranged symmetrically, and each gear is a bilaterally symmetrical structure, consisting of a rim, horizontal spokes, oblique spokes, columns, a hub, gear teeth, a wheel center ring, a limit block and a counterweight body. The angle between the oblique spokes is determined by the rotation range of the antenna. The counterweight body is located at the lower part of the rim and is used to balance the weight above the rotating shaft. The wheel center ring is located in the middle of the spokes and is used to connect the horizontal spokes and the oblique spokes into an integral structure. The column is located at the upper part of the hub in the vertical direction. The gear teeth are located on the outside of the rim to provide rotational motion for the antenna device. The limit blocks are located at the upper and lower ends of the rim to limit the rotation range of the antenna. Function: The connecting frame is used to connect the double gears, and is a left-right symmetrical and front-back symmetrical structure, including an upper frame and a plate truss. The upper frame is composed of an outer frame, an inner frame, a ring beam and a cross beam. The outer frame is a quadrilateral, and the four vertices are respectively connected to the tops of the double gears. The four sides of the inner frame are respectively connected to the midpoints of the four sides of the outer frame. The ring beam is located at the center of the upper frame and is connected to the outer frame and the inner frame through a cross beam. The plate truss is located in the front and rear positions of the connecting frame, and is composed of a lower side beam, a vertical rod and an oblique rod. The lower side beam is in the same plane as the horizontal spokes and the end intersects with the rim; the rotating shaft is located inside the wheel hub, which is the rotation center of the entire cross-axis mechanism and is also used to support the entire cross-axis mechanism.

[0014] Furthermore, the pitch mechanism is composed of a pitch platform, a double gear, a pitch shaft cylinder, a main load-bearing beam, a secondary load-bearing beam, a cross-axis drive and a bearing seat; the pitch platform is a two-ring double-layer truss structure, consisting of an inner ring truss, an outer ring truss and a connecting truss, the inner ring truss is polygonal in shape, including an upper and lower ring beam, the upper and lower ring beams are connected by a number of vertical rods and web rods, the outer ring truss is octagonal in shape, including an upper and lower ring beam, the upper and lower ring beams are connected by a number of vertical rods and web rods, the connecting truss is located between the inner ring truss and the outer ring truss, there are four places in total, including front, back, left and right positions, the connecting truss is a double-layer structure The double gear is located at the lower part of the pitching platform and is composed of two single gears, which are arranged symmetrically on the left and right. The single gears are connected by an arc plate and a plurality of beams and oblique rods. Each single gear is composed of a rim, a counterweight, a V-beam, an auxiliary beam, a limit block and a gear tooth. The rim is an arc-shaped structure, and the top end is connected to the pitching platform. The counterweight is located at the lower part of the rim and is used to balance the weight above the rotation axis of the antenna system. The open end of the V-beam is connected to the pitching platform, and the bottom is connected to the counterweight. The auxiliary beam is located between the rim and the V-beam, and connects the rim and the V-beam into a whole. The gear teeth are located on the outside of the rim, providing rotational movement for the antenna mount. The central angle of the gear teeth is determined by the rotation range of the antenna. The limit blocks are located at both ends of the gear teeth, which play a role in limiting the rotation range of the antenna; the axis of the pitch shaft cylinder coincides with the pitch rotation axis of the antenna. The middle is a cylindrical cylinder and the two sides are conical cylinders. The two ends of the conical cylinder are support shafts, and the support shafts are connected to the bearing seat of the azimuth mechanism; the main bearing beam is located in a plane perpendicular to the pitch plane and passing through the pitch axis, and is composed of a left main bearing beam and a right main bearing beam. The main bearing beams are arranged in a V shape, and the lower ends of the left main bearing beam and the right main bearing beam are matched with the corresponding double gears. The auxiliary load-bearing beam is connected to the weight body, and the upper end is connected to the outer ring truss of the pitch platform; the auxiliary load-bearing beam is composed of four beams, including a left front auxiliary load-bearing beam, a left rear auxiliary load-bearing beam, a right front auxiliary load-bearing beam and a right rear auxiliary load-bearing beam, the lower end of the auxiliary load-bearing beam is connected to the corresponding double-gear counterweight body, and the upper end is connected to the outer ring truss of the pitch platform; the cross-axis drive is located at the four corners of the upper part of the pitch platform, matches the double gears of the cross-axis mechanism, and is used to drive the cross-axis mechanism; the bearing seat is located at the upper part of the pitch platform, including a left bearing seat and a right bearing seat, the axes of the two coincide with the axis of the cross-axis mechanism, and are used to support the cross-axis mechanism.

[0015] Furthermore, the azimuth mechanism includes: a main support truss, a side support beam, a radial oblique beam, a lower side beam, an inner oblique beam, a central pivot, an azimuth vertical tube, a bearing seat, a pitch drive and a roller mechanism; the main support truss is composed of a left main support truss, a right main support truss and a transition section, the left and right main support trusses are arranged symmetrically, the outer contours of the left and right main support trusses are triangular and both are double-layer lattice structures, each layer of the lattice structure is composed of a number of regular triangular grids, the two layers of the lattice structure are connected as a whole by a plurality of cross beams and space rods, the top of the main support truss is a transition section, and the transition section is connected to The bearing seats are connected, and the bottom of the main support truss connects the left and right main support trusses through the lower side beam to form a U-shaped frame, and the roller mechanism is located at the four corners of the U-shaped frame; the side support beam is composed of a left support beam and a right support beam, and the two are arranged symmetrically on the left and right. The upper end of the side support beam is connected to the main support truss, and the lower end is connected to the central pivot; the radial inclined beam is composed of four beam bodies, which are pyramid-shaped. The lower ends of the four beam bodies are respectively intersected at the connection between the corresponding main support truss and the lower side beam, and the upper ends intersect at the central pivot; the lower side beam includes two front and rear parts, which are connected to the bottom of the left and right main support trusses. , forming a quadrilateral frame, the lower beam is a truss structure; the inner oblique beam is a quadrilateral in shape, and the four corners are respectively located in the middle of the lower beam and the middle of the bottom end of the main support truss, and the inner oblique beam is a truss structure; the central pivot is located on the central tower base, including a fixed part and a rotating part, the fixed part is connected to the central tower base through anchor bolts, and the rotating part is connected to the side support beam and the radial oblique beam; the azimuth vertical tube includes a vertical tube and a horizontal tube, the vertical tube and the horizontal tube are connected in an intersecting form, the bottom of the vertical tube is connected to the central pivot, and the horizontal tube is connected to the pitch axis tube; the The bearing seat is located at the top of the main support truss, including the left bearing seat and the right bearing seat, the two are located on the same horizontal plane, and must maintain a coaxial relationship; the pitch drive is installed on the upper part of the central pivot, is arranged symmetrically on the left and right, and meshes with the corresponding double gears to drive the pitch mechanism to achieve the pitch movement of the antenna system; the roller mechanism includes four groups, which are located at the connection between the main support truss and the lower side beam respectively. The four groups of roller mechanisms are distributed on the same circumference to provide azimuth rotation movement for the antenna mount. Each group of roller mechanisms contains eight rollers, and the roller configuration is one-to-two, two-to-four, and four-to-eight.

[0016] Furthermore, the central tower base is located at the center of the azimuth mechanism, the top is connected to the central pivot, and the outer shape is conical.

[0017] Furthermore, the track is in the shape of a ring, the track axis coincides with the center tower base axis, the upper portion of the track is a roller mechanism, and the lower portion is connected to the foundation.

[0018] Furthermore, the lower part of the central tower base is prismatic and the upper part is pyramidal, or the lower part is cylindrical and the upper part is conical.

[0019] Furthermore, the track is formed by welding the track into a whole ring after segmentation, or by segmentation and then splicing the track.

[0020] Furthermore, the double-gear horizontal spokes bisect the angle of the oblique spokes, and the angle of the oblique spokes is 5° to 90°.

[0021] Furthermore, the central angle of the double gear teeth of the pitch mechanism is 5° to 150°.

[0022] Furthermore, the fixed part and the rotating part of the central pivot are connected via a bearing.

[0023] Furthermore, an elevator is provided on the outer side of the main supporting truss, and the elevator can be arranged on both sides or on one side.

[0024] Furthermore, the contact between the roller and the track in the roller mechanism can be in an arc or linear form.

[0025] Compared with the background technology, the present invention has the following beneficial effects:

[0026] (1) The three-axis mount system is used to achieve full airspace tracking capability. The mount device of the present invention adopts azimuth, pitch and cross-axis methods, overcoming the shortcomings of traditional azimuth-pitch and XY mounts, and has the ability to track targets in the entire airspace.

[0027] (2) Wheel-rail azimuth drive improves the rigidity of the antenna system. The mount of the present invention is located on the track and is driven by rollers to rotate in azimuth. Compared with the turntable drive in the background technology, the track diameter is almost not limited by the manufacturing size, thus increasing the support rigidity of the mount and improving the driving ability of azimuth rotation.

[0028] (3) The double gear structure increases the space for antenna use. The pitch and cross-axis mechanisms of the present invention both adopt a double gear structure, leaving space between the two gears for the beam waveguide tube; the double gears adopt a symmetrical arrangement structure, making the antenna deformation more uniform, which is conducive to improving the antenna surface accuracy; the double gear configuration can also leave enough installation and adjustment space for the drive device.

[0029] (4) The azimuth mechanism adopts a lattice structure with high stability. The azimuth mechanism of the present invention is composed of a regular triangular grid and has stable mechanical properties. In addition, the cross-sectional size of the single rods constituting the lattice structure is relatively small and easy to connect, thus avoiding the risk of local instability in the connection between large-section beams in the background technology.

[0030] (5) Improved anti-overturning capability. The present invention improves the central pivot position, shortens the force transmission path, increases the anti-overturning moment, and improves the anti-overturning capability of the seat frame.

[0031] (6) Large space for receiving and transmitting equipment. The central tower base of the present invention can accommodate large receiving and transmitting equipment. At the same time, the tower base is located on the ground, which is conducive to daily operation and maintenance.

[0032] In summary, the present invention has an ingenious concept, clear ideas, and is easy to implement. It not only solves the problem that the traditional large-scale reflective surface antenna mount cannot track targets in the entire airspace, but also improves the anti-overturning ability of the antenna mount and increases the equipment usage space. It is an important improvement on the prior art. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] Figure 1 is a schematic diagram of the overall structure of an embodiment of the present invention;

[0034] Figure 2 is a schematic diagram of a cross-axis mechanism according to an embodiment of the present invention;

[0035] Figure 3 is a schematic diagram of the gear structure of the cross-axis mechanism of an embodiment of the present invention;

[0036] Figure 4 Schematic diagram of the connection frame structure of the cross-axis mechanism according to an embodiment of the present invention

[0037] Figure 5 is a schematic diagram of a pitch mechanism according to an embodiment of the present invention;

[0038] Figure 6 is a top view of an inner ring truss and an outer ring truss of a pitch platform according to an embodiment of the present invention;

[0039] Figure 7 is a schematic diagram of an orientation mechanism of an embodiment of the present invention;

[0040] Figure 8 is a top view of the orientation mechanism of an embodiment of the present invention;

[0041] Fig. 9 Schematic diagram of the grid composition of the left and right main support trusses of the azimuth mechanism of an embodiment of the present invention;

[0042] Fig.10 It is a schematic diagram of the partial structure of the main support truss and the bearing seat of an embodiment of the present invention;

[0043] Fig.11 is a schematic diagram of a roller configuration method according to an embodiment of the present invention;

[0044] Fig.12 1 is a schematic diagram of the central tower base and central pivot structure of an embodiment of the present invention;

[0045] Fig.13 Schematic diagram of the track shape of an embodiment of the present invention.

[0046] The meanings of the numbers in the figure are as follows: cross-axis mechanism 1, double gear 1-1, rim 1-1-1, horizontal spoke 1-1-2, inclined spoke 1-1-3, column 1-1-4, hub 1-1-5, gear teeth 1-1-6, wheel center ring 1-1-7, limit block 1-1-8, counterweight 1-1-9, connecting frame 1-2, upper frame 1-2-1, outer frame 1-2-1-1, inner frame 1-2-1-2, annular beam 1-2- 1-3, cross beam 1-2-1-4, sheet truss 1-2-2, lower side beam 1-2-2-1, vertical rod 1-2-2-2, diagonal rod 1-2-2-3, rotation axis 1-3, pitch mechanism 2, pitch platform 2-1, inner ring truss 2-1-1, outer ring truss 2-1-2, connecting truss 2-1-3, second double gear 2-2, single gear 2-2-1, second rim 2-2-1-1, second counterweight 2-2-1-2, V-beam 2-2-1-3, auxiliary beam 2-2-1-4, second limit block 2-2-1-5, second gear 2-2-1-6, arc plate 2-2-2, pitch axis cylinder 2-3, cylindrical cylinder 2-3-1, conical cylinder 2-3-2, main bearing beam 2-4, left main bearing beam 2-4-1, right main bearing beam 2-4-2, auxiliary bearing beam 2-5, left front auxiliary bearing beam 2-5-1, left rear auxiliary bearing beam 2-5-2, right front auxiliary bearing beam 2-5-3, right rear auxiliary bearing beam 2-5-4, cross shaft drive 2-6, bearing seat 2-7, left bearing seat 2-7-1, right bearing seat 2-7- 2, azimuth mechanism 3, main support truss 3-1, left main support truss 3-1-1, right main support truss 3-1-2, transition section 3-1-3, side support beam 3-2, left support beam 3-2-1, right support beam 3-2-2, radial inclined beam 3-3, third lower side beam 3-4, inner inclined beam 3-5, center pivot 3-6, azimuth vertical tube 3-7, vertical tube 3-7-1, horizontal tube 3-7-2, third bearing seat 3-8, third left bearing seat 3-8-1, third right bearing seat 3-8-2, pitch drive 3-9, roller mechanism 3-10, center tower base 4, track 5, elevator 6. DETAILED DESCRIPTION

[0047] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.

[0048] The embodiment of the present invention takes a reflector antenna with a diameter greater than 50 meters as an example. Figure 1 As shown, the antenna mounting device of the present invention comprises: a cross-axis mechanism 1, a pitch mechanism 2, an azimuth mechanism 3, a central tower base 4 and a track 5. The central tower base 4 and the track 5 are located on the ground; the azimuth mechanism 3 is located above the central tower base 4 and the track 5, with the axis perpendicular to the ground, and adopts a double-layer lattice structure, and provides azimuth rotation for the antenna system through a roller mechanism 3-10.

[0049] The pitch mechanism 2 is located above the azimuth mechanism 3, with its axis parallel to the ground, and is driven by a double gear. The second double gear 2-2 is located in the middle of the pitch mechanism 2, and is connected to form an integral structure through a truss to provide pitch rotation for the antenna system. The cross-axis mechanism 1 is located above the pitch mechanism 2, with its axis parallel to the ground and perpendicular to the axis of the pitch mechanism, and is driven by a double gear. The double gear 1-1 is located on both sides of the cross-axis mechanism 1 and is connected to form an integral structure through a truss to provide cross-axis rotation for the antenna system.

[0050] like Figure 2 As shown, the upper part of the cross-axis mechanism 1 is connected to the antenna reflector, and is composed of a double gear 1-1, a connecting frame 1-2 and a rotating shaft 1-3.

[0051] The double gears 1-1 are arranged symmetrically, and each gear 1-1 has a symmetrical structure. Figure 3 In the figure, each gear 1-1 is composed of a rim 1-1-1, horizontal spokes 1-1-2, oblique spokes 1-1-3, columns 1-1-4, hubs 1-1-5, gear teeth 1-1-6, a center ring 1-1-7, a limit block 1-1-8 and a counterweight 1-1-9. The angle between the oblique spokes 1-1-3 is determined by the rotation range of the antenna. The counterweight 1-1-9 is located at the lower part of the rim 1-1-1 and is used to balance the weight above the rotation axis. The wheel center ring 1-1-7 is located in the middle of the spokes 1-1-2 and 1-1-3 and is used to connect the horizontal spokes 1-1-2 and the oblique spokes 1-1-3 into an integral structure. The column 1-1-4 is located at the upper part of the hub 1-1-5 in the vertical direction. The gear teeth 1-1-6 are located on the outer side of the rim 1-1-1 to provide rotational movement for the antenna device. The limit blocks 1-1-8 are located at the upper and lower ends of the rim 1-1-1 to limit the rotation range of the antenna.

[0052] like Figure 4 As shown, the connecting frame 1-2 is used to connect the double gears 1-1, and is a left-right symmetrical and front-back symmetrical structure, including an upper frame 1-2-1 and a sheet truss 1-2-2. The upper frame 1-2-1 is composed of an outer frame 1-2-1-1, an inner frame 1-2-1-2, an annular beam 1-2-1-3 and a cross beam 1-2-1-4. The outer frame 1-2-1-1 is a quadrilateral, and the four vertices are respectively connected to the top of the double gears 1-1. The four sides of the inner frame 1-2-1-2 are respectively connected to the midpoints of the four sides of the outer frame 1-2-1-1. The annular beam 1-2-1-3 is located at the center of the upper frame 1-2-1, and is connected to the outer frame 1-2-1-1 and the inner frame 1-2-1-2 through the cross beam 1-2-1-4. The sheet truss 1-2-2 Located at the front and rear positions of the connecting frame 1-2, it is composed of a lower side beam 1-2-2-1, a vertical rod 1-2-2-2 and an oblique rod 1-2-2-3. The lower side beam 1-2-2-1 and the horizontal spoke 1-1-2 are in the same plane and the end thereof intersects with the rim 1-1-1.

[0053] like Figure 2 , 3 As shown, the rotating shaft 1-3 is located inside the wheel hub 1-1-5 and is the rotation center of the entire cross-axis mechanism 1, and is also used to support the entire cross-axis mechanism 1.

[0054] like Figure 5 As shown, the pitch mechanism 2 is composed of a pitch platform 2-1, a second double gear 2-2, a pitch shaft cylinder 2-3, a main load-bearing beam 2-4, a secondary load-bearing beam 2-5, a cross-axis drive 2-6 and a bearing seat 2-7.

[0055] exist Figure 5 , 6 In the figure, the pitching platform 2-1 is a two-ring double-layer truss structure, which is composed of an inner ring truss 2-1-1, an outer ring truss 2-1-2 and a connecting truss 2-1-3. The inner ring truss 2-1-1 is polygonal in shape, including an upper and lower ring beam, which are connected by a number of vertical rods and web members. The outer ring truss 2-1-2 is octagonal in shape, including an upper and lower ring beam, which are connected by a number of vertical rods and web members. The connecting truss 2-1-3 is located between the inner ring truss 2-1-1 and the outer ring truss 2-1-2, and there are four locations in total, including front, back, left and right positions. The connecting truss 2-1-3 is a double-layer structure, which is composed of upper and lower cross beams, vertical rods and web members.

[0056] The second double gear 2-2 is located at the lower part of the pitch platform 2-1, and is composed of two single gears 2-2-1. The two single gears 2-2-1 are arranged symmetrically on the left and right. The single gears 2-2-1 are connected by an arc plate 2-2-2 and a plurality of crossbeams and inclined rods. Each single gear 2-2-1 is composed of a second rim 2-2-1-1, a second counterweight 2-2-1-2, a V-beam 2-2-1-3, an auxiliary beam 2-2-1-4, a second limit block 2-2-1-5 and a second gear 2-2-1-6. The second rim 2-2-1-1 is arc-shaped, and the top end is connected to the pitch platform 2-1. The counterweight 2-2-1-2 is located at the lower part of the rim 2-2-1-1 and is used to balance the weight above the rotation axis of the antenna system. The V-beam 2-2-1-3 The open end is connected to the pitch platform 2-1, and the bottom is connected to the second counterweight 2-2-1-2. The auxiliary beam 2-2-1-4 is located between the second rim 2-2-1-1 and the V-beam 2-2-1-3, and connects the second rim 2-2-1-1 and the V-beam 2-2-1-3 into a whole. The second gear tooth 2-2-1-6 is located on the outside of the rim 2-2-1-1 to provide rotational movement for the antenna mount. The central angle of the second gear tooth 2-2-1-6 is determined by the rotation range of the antenna. The second limit blocks 2-2-1-5 are located at both ends of the second gear tooth 2-2-1-6 to limit the rotation range of the antenna.

[0057] The axis of the elevation axis tube 2-3 coincides with the antenna elevation rotation axis, with a cylindrical tube 2-3-1 in the middle and conical tubes 2-3-2 on both sides, and support shafts 2-3-3 at both ends of the conical tube 2-3-2, which are connected to the azimuth mechanism bearing seat 3-8.

[0058] The main bearing beam 2-4 is located in a plane perpendicular to the pitch plane and passing through the pitch axis, and is composed of a left main bearing beam 2-4-1 and a right main bearing beam 2-4-2. The main bearing beam 2-4 is arranged in a V shape. The lower ends of the left main bearing beam 2-4-1 and the right main bearing beam 2-4-2 are connected to the corresponding double-gear counterweight 2-2-1-2, and the upper ends are connected to the outer ring truss 2-1-2 of the pitch platform.

[0059] The auxiliary bearing beam 2-5 is composed of four beams, including the left front auxiliary bearing beam 2-5-1, the left rear auxiliary bearing beam 2-5-2, the right front auxiliary bearing beam 2-5-3 and the right rear auxiliary bearing beam 2-5-4. The lower end of the auxiliary bearing beam 2-5 is connected to the corresponding double-gear counterweight 2-2-1-2, and the upper end is connected to the outer ring truss 2-1-2 of the pitch platform.

[0060] The cross-axis drive 2-6 is located at the four corners of the upper part of the pitch platform 2-1, matches the double gear 1-1 of the cross-axis mechanism 1, and is used to drive the cross-axis mechanism 1.

[0061] The bearing seat 2-7 is located on the upper part of the pitch platform 2-1, and includes a left bearing seat 2-7-1 and a right bearing seat 2-7-2. The axes of the two coincide with the axis of the cross-axis mechanism and are used to support the cross-axis mechanism 1.

[0062] like Figure 7 , 8 As shown, the azimuth mechanism 3 includes: a main supporting truss 3-1, a side supporting beam 3-2, a radial inclined beam 3-3, a third lower side beam 3-4, an inner inclined beam 3-5, a central pivot 3-6, an azimuth vertical tube 3-7, a third bearing seat 3-8, a pitch drive 3-9 and a roller mechanism 3-10.

[0063] The main support truss 3-1 is composed of a left main support truss 3-1-1, a right main support truss 3-1-2 and a transition section 3-1-3. The left and right main support trusses 3-1-1 and 3-1-2 are arranged symmetrically. Fig. 9 As shown, the left and right main support trusses 3-1-1 and 3-1-2 have triangular outlines and are both double-layer lattice structures. Each layer of the lattice structure is composed of a number of regular triangular grids. The two layers of the lattice structure are connected as a whole by multiple beams and space rods, as shown in FIG. Fig.10As shown, the top of the main support truss 3-1 is a transition section 3-1-3, which is connected to the bearing seat 3-8. The bottom of the main support truss 3-1 is connected to the left and right main support trusses 3-1-1 and 3-1-2 through the third lower side beam 3-4 to form a U-shaped frame, and the roller mechanism 3-10 is located at the four corners of the U-shaped frame.

[0064] exist Figure 7 In the figure, the side support beam 3-2 is composed of a left support beam 3-2-1 and a right support beam 3-2-2, which are arranged symmetrically. The upper end of the side support beam 3-2 is connected to the main support truss 3-1, and the lower end is connected to the central pivot 3-6.

[0065] The radial inclined beam 3-3 is composed of four beam bodies in a pyramid shape. The lower ends of the four beam bodies intersect at the connection between the corresponding main support truss 3-1-1 and the third lower side beam 3-4, and the upper ends intersect at the central pivot 3-6.

[0066] The third lower side beam 3-4 includes two parts, front and rear parts, which are connected to the bottoms of the left and right main support trusses 3-1-1 and 3-1-2 to form a quadrilateral frame. The third lower side beam 3-4 is a truss structure.

[0067] The inner inclined beam 3-5 has a quadrilateral shape, and the four corners are respectively located in the middle of the lower side beam 3-4 and the middle of the bottom end of the main supporting truss 3-1. The inner inclined beam 3-5 is a truss structure.

[0068] The central pivot 3-6 is located on the central tower base 4, and includes a fixed part and a rotating part. The fixed part is connected to the central tower base 4 through anchor bolts, and the rotating part is connected to the side support beam 3-2 and the radial inclined beam 3-3.

[0069] The azimuth tube 3-7 includes a vertical tube 3-7-1 and a horizontal tube 3-7-2. The vertical tube 3-7-1 and the horizontal tube 3-7-2 are connected in an intersecting manner. The bottom of the vertical tube 3-7-1 is connected to the central pivot 3-6, and the horizontal tube 3-7-2 is connected to the pitch axis tube 2-3.

[0070] The third bearing seat 3-8 is located at the top of the main support truss 3-1, including a third left bearing seat 3-8-1 and a third right bearing seat 3-8-2, both of which are located on the same horizontal plane and maintain a coaxial relationship.

[0071] The pitch drive 3-9 is installed on the upper part of the central pivot 3-6, and is arranged symmetrically on the left and right. It is meshed with the corresponding double gear 2-2 and is used to drive the pitch mechanism 2 to realize the pitch movement of the antenna system.

[0072] The roller mechanism 3-10 includes four groups, which are respectively located at the connection between the main support truss 3-1 and the third lower side beam 3-4. The four groups of roller mechanisms 3-10 are distributed on the same circumference to provide azimuth rotation movement for the antenna mount, such as Fig.11 As shown, each group of roller mechanisms 3-10 includes eight rollers, and the roller configurations are one-to-two, two-to-four, and four-to-eight.

[0073] like Fig.12 As shown, the center tower base 4 is located at the center of the azimuth mechanism 3, the top is connected to the center pivot 3-6, and the appearance is conical.

[0074] like Fig.13 As shown, the track 5 is in a circular shape, the axis of the track 5 coincides with the axis of the center tower base 4, the upper part of the track 5 is a roller mechanism 3-10, and the lower part is connected to the foundation.

[0075] The center tower base 4 has a prism shape at the bottom and a prism shape at the top, or can have a cylindrical shape at the bottom and a truncated cone shape at the top.

[0076] The track 5 is formed by welding the sections into an integral ring, or by splicing the sections.

[0077] The double-gear horizontal spokes 1-1-2 bisect the angle of the oblique spokes 1-1-3, and the angle of the oblique spokes is 5° to 90°.

[0078] The angle of the inclined spokes in this example is 30°.

[0079] The center angle of the second double gear teeth 2-2-1-6 is 5° to 150°.

[0080] The center angle of the second double gear teeth 2-2-1-6 in this example is 120°.

[0081] The fixed part and the rotating part of the central pivot 3-6 are connected through a bearing.

[0082] The outside of the main supporting truss 3-1 is also provided with an elevator 6, and the elevator 6 can be arranged on both sides or on one side.

[0083] There are two elevators 6 in this example, which are respectively located on the left and right sides of the main support truss 3-1.

[0084] The contact mode between the roller in the roller mechanism 3 - 10 and the track 5 is arc type or linear type.

[0085] The contact mode between the roller and the track 5 in this example is arc type.

[0086] The above is only the best embodiment of the present invention and does not limit the present invention in any way. Any simple modification, change and equivalent structural change made to the above embodiment based on the technical essence of the present invention still falls within the protection scope of the technical solution of the present invention.

Claims

1. A three-axis wheel-track type double gear structure antenna mounting device, characterized in that: The invention comprises a cross-axis mechanism (1), a pitch mechanism (2), an azimuth mechanism (3), a central tower base (4) and a track (5); the central tower base (4) and the track (5) are located on the ground; the azimuth mechanism (3) is located on the central tower base (4) and the track (5), the axis of which is perpendicular to the ground, and a double-layer lattice structure is adopted; the azimuth mechanism (3) provides azimuth rotation for the antenna system through a roller mechanism (3-10); the pitch mechanism (2) is located on the azimuth mechanism (3), the axis of which is parallel to the ground, and a double-gear drive mode is adopted; the second double gear (2-2) is located in the middle of the pitch mechanism (2), and the two are connected to form an integral structure through a truss, so as to provide the antenna system with pitch rotation; the cross-axis mechanism (1) is located on the pitch mechanism (2), the axis of which is parallel to the ground and perpendicular to the axis of the pitch mechanism, and a double-gear drive mode is adopted; the double gears (1-1) are located on both sides of the cross-axis mechanism (1) and are connected to form an integral structure through a truss, so as to provide the antenna system with cross-axis rotation; The pitch mechanism (2) is composed of a pitch platform (2-1), a second double gear (2-2), a pitch shaft cylinder (2-3), a main load-bearing beam (2-4), a secondary load-bearing beam (2-5), a cross-axis drive (2-6) and a bearing seat (2-7); the pitch platform (2-1) is a two-ring double-layer truss structure, which is composed of an inner ring truss (2-1-1), an outer ring truss (2-1-2) and a connecting truss (2-1-3); the inner ring truss (2-1-1) is polygonal in shape, including two layers of inner ring beams, which are connected by a plurality of vertical rods and web rods; the outer ring truss (2-1-2) is octagonal in shape, including two layers of outer ring beams, which are connected by a plurality of vertical rods and web rods. The connecting trusses (2-1-3) are located between the inner ring trusses (2-1-1) and the outer ring trusses (2-1-2), and there are four of them, including front, back, left and right positions; the connecting trusses (2-1-3) are double-layer structures, and are composed of upper and lower beams, vertical rods and web rods; the second double gear (2-2) is located at the lower part of the pitch platform (2-1), and is composed of two single gears (2-2-1), and the two single gears (2-2-1) are arranged symmetrically on the left and right, and the single gears (2-2-1) are connected by arc plates (2-2-2) and a plurality of beams and oblique rods, and each single gear (2-2-1) is composed of a second wheel rim (2-2-1-1), a second counterweight body (2-2-1-2), a V-beam (2-2-1-3), an auxiliary The auxiliary beam (2-2-1-4), the second limit block (2-2-1-5) and the second gear (2-2-1-6) are composed; the second rim (2-2-1-1) is arc-shaped, and the top end is connected to the pitch platform (2-1); the second counterweight (2-2-1-2) is located at the bottom of the second rim (2-2-1-1) and is used to balance the weight above the rotation axis of the antenna system; the open end of the V-shaped beam (2-2-1-3) is connected to the pitch platform (2-1), and the bottom is connected to the second counterweight (2-2-1-2); the auxiliary beam (2-2-1-4) is located between the second rim (2-2-1-1) and the V-shaped beam (2-2-1-3), and connects the second rim (2-2-1-1) and the V-shaped beam ( The second gear teeth (2-2-1-6) are located outside the second wheel rim (2-2-1-1) to provide rotational motion for the antenna mount, the center angle of the second gear teeth (2-2-1-6) is determined by the rotation range of the antenna, and the second limit blocks (2-2-1-5) are located at both ends of the second gear teeth (2-2-1-6) to limit the rotation range of the antenna; the axis of the pitch axis cylinder (2-3) coincides with the pitch rotation axis of the antenna, the middle is a cylindrical cylinder (2-3-1) and the two sides are conical cylinders (2-3-2), the two ends of the conical cylinder (2-3-2) are support shafts (2-3-3), and the support shaft (2-3-3) is connected to the third bearing seat (3-8) of the azimuth mechanism;The main bearing beam (2-4) is located in a plane perpendicular to the pitch plane and passing through the pitch axis, and is composed of a left main bearing beam (2-4-1) and a right main bearing beam (2-4-2). The main bearing beam (2-4) is arranged in a V shape. The lower ends of the left main bearing beam (2-4-1) and the right main bearing beam (2-4-2) are connected to the second counterweight body (2-2-1-2) of the corresponding second double gear, and the upper ends are connected to the outer ring truss (2-1-2) of the pitch platform. The auxiliary load-bearing beam (2-5) is composed of four beam bodies, including a left front auxiliary load-bearing beam (2-5-1), a left rear auxiliary load-bearing beam (2-5-2), a right front auxiliary load-bearing beam (2-5-3) and a right rear auxiliary load-bearing beam (2-5-4). The lower end of the auxiliary load-bearing beam (2-5) is connected to the corresponding double-gear second counterweight body (2-2-1-2), and the upper end is connected to the outer ring truss (2-1-2) of the pitch platform; the cross-axis drive (2-6) is located at the four corners of the upper part of the pitch platform (2-1), matches the double gear (1-1) of the cross-axis mechanism (1), and is used to drive the cross-axis mechanism (1); the bearing seat (2-7) is located at the upper part of the pitch platform (2-1), including a left bearing seat (2-7-1) and a right bearing seat (2-7-2), the axes of which coincide with the axis of the cross-axis mechanism, and are used to support the cross-axis mechanism (1).

2. A three-axis wheel-track type double gear structure antenna mount device according to claim 1, characterized in that: The cross-axis mechanism (1) is connected to the antenna reflector at the top, and is composed of a double gear (1-1) connected to a frame (1-2) and a rotating shaft (1-3); the double gears (1-1) are arranged symmetrically on the left and right, and each double gear (1-1) is a symmetrical structure, and is composed of a rim (1-1-1), horizontal spokes (1-1-2), oblique spokes (1-1-3), a column (1-1-4), a hub (1-1-5), gear teeth (1-1-6), a wheel center ring (1-1-7), a limit block (1-1-8) and a counterweight (1-1-9); the angle between the oblique spokes (1-1-3) is determined by the rotation range of the antenna, and the counterweight (1-1-9) is determined by the rotation range of the antenna. The body (1-1-9) is located at the lower part of the rim (1-1-1) and is used to balance the weight above the rotating shaft. The wheel center ring (1-1-7) is located at the middle of the horizontal spokes (1-1-2) and the oblique spokes (1-1-3) and is used to connect the horizontal spokes (1-1-2) and the oblique spokes (1-1-3) into an integral structure. The column (1-1-4) is located at the upper part of the hub (1-1-5) and is in the vertical direction. The gear teeth (1-1-6) are located at the outer side of the rim (1-1-1) and provide rotational movement for the antenna device. The limit blocks (1-1-8) are located at the upper and lower ends of the rim (1-1-1) and play a role in limiting the rotation range of the antenna. The connecting frame (1-2) is used to connect the double gears (1-1) that are opposite to each other on the left and right, and is a centrally symmetrical structure. The connecting frame includes an upper frame (1-2-1) and a sheet truss (1-2-2). The upper frame (1-2-1) is composed of an outer frame (1-2-1-1), an inner frame (1-2-1-2), an annular beam (1-2-1-3) and a cross beam (1-2-1-4). The outer frame (1-2-1-1) is a quadrilateral, and the four vertices are respectively connected to the top of the double gears (1-1). The four sides of the inner frame (1-2-1-2) are respectively connected to the midpoints of the four sides of the outer frame (1-2-1-1). The annular beam (1-2-1-3) is located on the upper frame. The center position of the wheel hub (1-2-1) is connected to the outer frame (1-2-1-1) and the inner frame (1-2-1-2) through a cross beam (1-2-1-4). The sheet truss (1-2-2) is located at the front and rear positions of the connecting frame (1-2) and is composed of a lower beam (1-2-2-1), a vertical rod (1-2-2-2) and an inclined rod (1-2-2-3). The lower beam (1-2-2-1) and the horizontal spokes (1-1-2) are in the same plane and the ends thereof intersect with the rim (1-1-1). The rotation axis (1-3) is located inside the wheel hub (1-1-5) and is the rotation center of the entire cross axis mechanism (1) and is also used to support the entire cross axis mechanism (1).

3. The three-axis wheel-track double gear structure antenna mounting device according to claim 1, characterized in that: The azimuth mechanism (3) comprises a main support truss (3-1), a side support beam (3-2), a radial inclined beam (3-3), a third lower side beam (3-4), an inner inclined beam (3-5), a central pivot (3-6), an azimuth vertical tube (3-7), a third bearing seat (3-8), a pitch drive (3-9) and a roller mechanism (3-10); the main support truss (3-1) is composed of a left main support truss (3-1-1), a right main support truss (3-1-2) and a transition section (3-1-3); the left and right main support trusses (3-1-1, 3-1-2) are arranged symmetrically; the left and right main support trusses (3-1-1, 3-1-2) have triangular outlines and are both double-layer lattice structures; each layer of the lattice structure is composed of a number of regular triangles. The lattice structure is composed of two layers, and the two layers are connected to form a whole through a plurality of cross beams and space rods. The top of the main support truss (3-1) is a transition section (3-1-3), and the transition section (3-1-3) is connected to the third bearing seat (3-8). The bottom of the main support truss (3-1) connects the left and right main support trusses (3-1-1, 3-1-2) through the third lower side beam (3-4) to form a U-shaped frame. The roller mechanism (3-10) is located at the four corners of the U-shaped frame. The side support beam (3-2) is composed of a left support beam (3-2-1) and a right support beam (3-2-2), and the two are arranged symmetrically. The upper end of the side support beam (3-2) is connected to the main support truss (3-1), and the lower end is connected to the central pivot (3-6). The radial inclined beam (3-3) is composed of four beam bodies and is in a pyramid shape. The lower ends of the four beam bodies intersect at the connection points between the corresponding main support trusses (3-1-1) and the third lower side beam (3-4), and the upper ends intersect at the central pivot (3-6); the third lower side beam (3-4) includes two front and rear parts, which are connected to the bottoms of the left and right main support trusses (3-1-1, 3-1-2) to form a quadrilateral frame, and the third lower side beam (3-4) is a truss structure; the inner inclined beam (3-5) has a quadrilateral shape, and the four corners are respectively located in the middle of the third lower side beam (3-4) and the middle of the bottom end of the main support truss (3-1), and the inner inclined beam (3-5) is a truss structure; the central pivot (3-6) is located on the central tower base (4), and includes a fixed part and The rotating part and the fixed part are connected to the central tower base (4) through anchor bolts, and the rotating part is connected to the side support beam (3-2) and the radial inclined beam (3-3); the azimuth vertical tube (3-7) includes a vertical tube (3-7-1) and a horizontal tube (3-7-2), and the vertical tube (3-7-1) and the horizontal tube (3-7-2) are connected in an intersecting form, the bottom of the vertical tube (3-7-1) is connected to the central pivot (3-6), and the horizontal tube (3-7-2) is connected to the pitch axis tube (2-3); the third bearing seat (3-8) is located at the top of the main support truss (3-1), including a third left bearing seat (3-8-1) and a third right bearing seat (3-8-2), both of which are located on the same horizontal plane and maintain a coaxial relationship;The pitch drive (3-9) is installed on the upper part of the central pivot (3-6) and is arranged symmetrically on both sides. It meshes with the corresponding second double gear (2-2) and is used to drive the pitch mechanism (2) to achieve the pitch movement of the antenna system. The roller mechanism (3-10) includes four groups, which are respectively located at the connection between the main support truss (3-1) and the third lower side beam (3-4). The four groups of roller mechanisms (3-10) are distributed on the same circumference to provide azimuth rotation movement for the antenna mount. Each group of roller mechanisms (3-10) includes eight rollers, and the roller configuration methods are one-to-two, two-to-four, and four-to-eight.

4. The three-axis wheel-track type double gear structure antenna mounting device according to claim 1, characterized in that: The central tower base (4) is located at the center of the orientation mechanism (3), the top of which is connected to the central pivot (3-6), and the outer shape is a frustum.

5. The three-axis wheel-track double gear structure antenna mounting device according to claim 1, characterized in that: The track (5) is in the shape of a ring, the axis of the track (5) coincides with the axis of the central tower base (4), the upper part of the track (5) is a roller mechanism (3-10), and the lower part is connected to the foundation.

6. A three-axis wheel-track type double gear structure antenna mount device according to claim 1 or 4, characterized in that: The central tower base (4) has a prism-shaped lower portion and a prism-shaped upper portion, or has a cylindrical lower portion and a truncated cone-shaped upper portion.

7. A three-axis wheel-track type double gear structure antenna mount device according to claim 1 or 5, characterized in that: The track (5) is formed by welding the sections into an integral circular ring, or by splicing the sections into sections.

8. The three-axis wheel-track double gear structure antenna mounting device according to claim 2, characterized in that: The double-gear horizontal spokes (1-1-2) bisect the angle of the oblique spokes (1-1-3), and the angle of the oblique spokes is 5° to 90°.

9. The three-axis wheel-track double gear structure antenna mounting device according to claim 1, characterized in that: The center angle of the second gear teeth (2-2-1-6) of the second double gear is 5° to 150°.

10. The three-axis wheel-track double gear structure antenna mounting device according to claim 3, characterized in that: The fixed part and the rotating part of the central pivot (3-6) are connected via a bearing.

11. A three-axis wheel-track type double gear structure antenna mounting device according to claim 1 or 3, characterized in that: The contact mode between the roller in the roller mechanism (3-10) and the track (5) is arc type or linear type.

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