Mobile shortwave antenna system

Abstract

A mobile shortwave antenna system includes: an expandable antenna assembly for transmitting signals; a boom assembly, one end of which is hinged to the antenna assembly; a slewing assembly, which is hinged to the boom assembly; an arm-pushing mechanism, which connects the boom assembly and the slewing assembly; a wire-pushing mechanism, which connects the antenna assembly and the boom assembly; and a traction assembly, which is located on the other side of the slewing assembly and connected to the slewing assembly. The mobile shortwave antenna system drives the boom assembly to rotate through the arm-pushing mechanism, and the wire-pushing mechanism drives the antenna assembly to rotate, so that the antenna assembly can be lifted to a specified height when the antenna assembly is needed, without the need to build a large scaffolding, and without the need to dismantle the large scaffolding after it is built, thereby reducing costs. Moreover, when the antenna assembly is not in use, the antenna assembly can be lowered back to its original position, and the antenna assembly can be kept in a horizontal state under the drive of the wire-pushing mechanism, which can effectively reduce the transportation size, facilitate transportation, and eliminate the need to repair the antenna assembly at high altitude.

Description

Technical Field

[0001] The present invention relates to the technical field of shortwave antenna equipment, and in particular to a mobile shortwave antenna system. Background Art

[0002] At present, large shortwave antennas used in the field of long-distance communication are basically composed of multiple layers of oscillators supported by truss beams and supporting iron towers. Each layer of oscillators is arranged according to a certain pattern. They have a wide frequency band and high available power, and can provide ultra-long-distance communication functions. However, they also have the following disadvantages:

[0003] 1. The antenna is large in size and has many accessories. A large scaffolding needs to be built during installation, which needs to be dismantled after installation, which greatly increases the cost and takes a long time to install. Later maintenance is also inconvenient.

[0004] 2. The antenna is relatively high, and its installation and maintenance require professional high-altitude workers, which is also very dangerous. Summary of the invention

[0005] Based on this, the present invention provides a mobile shortwave antenna system that can solve the above problems.

[0006] To achieve the purpose of the present invention, the present invention adopts the following technical solutions:

[0007] A mobile shortwave antenna system, comprising:

[0008] A deployable antenna assembly for transmitting signals;

[0009] An arm assembly, one end of which is hinged to the antenna assembly;

[0010] A slewing assembly is hinged to the arm assembly and is used to drive the arm assembly to rotate along a horizontal plane with the antenna assembly;

[0011] An arm push mechanism, connecting the arm assembly and the rotary assembly, and used to push the arm assembly to rotate along a vertical plane with the antenna assembly;

[0012] A wire pushing mechanism, connecting the antenna assembly and the arm assembly, and used to push the antenna assembly to rotate so that the antenna assembly always maintains a horizontal state;

[0013] an axle assembly, located on one side of the slewing assembly and detachably connected to the other end of the arm assembly;

[0014] The traction assembly is located at the other side of the rotary assembly and is connected to the rotary assembly.

[0015] The above-mentioned mobile short-wave antenna system can pull the antenna assembly to a designated location through the traction of the traction assembly; drive the boom assembly to rotate through the push arm mechanism, and push the antenna assembly to rotate through the wire-pushing mechanism. When the antenna assembly needs to be used, the antenna assembly can be lifted to a designated height without building a large scaffold, nor the subsequent dismantling after the large scaffold is built, which reduces the cost. Moreover, when the antenna assembly is not in use, the antenna assembly can be lowered back to its original position and the antenna assembly can be in a horizontal state, which can effectively reduce the transportation size, facilitate transportation, and does not require high-altitude maintenance of the antenna assembly, which is convenient for the installation and maintenance of the antenna assembly and reduces the maintenance risk coefficient.

[0016] In one embodiment, the slewing assembly includes a lower slewing body, an upper slewing body located above the lower slewing body, and a driving mechanism; the upper slewing body is connected to the traction assembly, and the driving mechanism is connected to the upper slewing body for driving the upper slewing body to rotate relative to the lower slewing body.

[0017] In one embodiment, the slewing assembly further includes a support mechanism. The support mechanism includes two first leg assemblies symmetrically arranged at one end of the lower slewing body close to the traction assembly, two second leg assemblies symmetrically arranged at one end of the lower slewing body close to the axle assembly, and a balanced support telescopic assembly. The first leg assembly includes a first leg with one end pivotally connected to one end of the lower slewing body and a first push-leg oil cylinder pivotally connecting the first leg and the lower slewing body. The second leg assembly includes a second leg with one end pivotally connected to the other end of the lower slewing body and a second push-leg oil cylinder pivotally connecting the second leg and the lower slewing body; a balanced support telescopic assembly is provided at the free ends of both the first leg and the second leg.

[0018] In one embodiment, the driving mechanism includes a slewing gear and a speed reducer meshing with the slewing gear. The slewing gear is fixedly connected to the lower slewing body and pivotally connected to the upper slewing body, and the speed reducer is located inside the upper slewing body.

[0019] In one embodiment, the slewing assembly is provided with a traction pin, and the traction pin is inserted into the traction assembly.

[0020] In one embodiment, the antenna assembly includes a first antenna, a second antenna, a third antenna, and a fourth antenna arranged in sequence from bottom to top. The first antenna, the second antenna, the third antenna, and the fourth antenna are locked by plugging; the boom assembly includes a first boom hinged to the slewing assembly, a second boom slidably disposed in the first boom, a third boom slidably disposed in the second boom, a fourth boom slidably disposed in the third boom, and a rope drive assembly installed in the first boom and linking the second boom, the third boom, and the fourth boom; the rope drive assembly is configured to drive the second boom, the third boom, and the fourth boom to extend from the first boom, the second boom, and the third boom respectively, so that the second boom, the third boom, and the fourth boom respectively push the second antenna, the third antenna, and the fourth antenna, and the plugging lock between the first antenna, the second antenna, the third antenna, and the fourth antenna is released and they are separated from each other.

[0021] In one embodiment, arm line plugs are provided on the second boom, the third boom, and the fourth boom. The arm line plugs provided on the second boom, the arm line plugs provided on the third boom, and the arm line plugs provided on the fourth boom are configured to plug the second antenna, the third antenna, and the fourth antenna respectively when the second boom, the third boom, and the fourth boom extend.

[0022] In one embodiment, a first limiting plate extends outward from the edge of the top end of the first boom, a second limiting plate extends outward from the edge of the top end of the second boom, a third limiting plate extends outward from the edge of the top end of the third boom, a fourth limiting plate extends outward from the edge of the top end of the fourth boom. The first limiting plate, the second limiting plate, the third limiting plate, and the fourth limiting plate are arranged in sequence along the central axis direction of the first boom. Arm line plugs are provided on the second limiting plate, the third limiting plate, and the fourth limiting plate.

[0023] In one embodiment, the rope and pulley drive assembly includes a cable-pulling hydraulic cylinder, a first fixed pulley, a second fixed pulley, a first movable pulley, a second movable pulley, a first cable, a second cable, a third cable, and a fourth cable. The output shaft of the cable-pulling hydraulic cylinder is connected to the bottom end of the first arm. The top end of the cylinder body of the cable-pulling hydraulic cylinder passes through the second arm and the third arm and extends into the fourth arm, and is provided with a first fixed pulley. The second fixed pulley is located between the third arm and the fourth arm. The first movable pulley and the second movable pulley are located on the side of the first fixed pulley away from the second fixed pulley. The first movable pulley is located between the cable-pulling hydraulic cylinder and the fourth arm and is connected to the third arm. The second movable pulley is located between the third arm and the first arm and is connected to the second arm. One end of the first cable is connected to the bottom end of the second arm, and the other end passes around the second fixed pulley and is connected to the fourth arm. One end of the second cable is connected to the bottom end of the third arm, and the other end passes around the first fixed pulley and is connected to the first arm. One end of the third cable is connected to the cylinder body of the cable-pulling hydraulic cylinder, and the other end passes around the first movable pulley and is connected to the fourth arm. One end of the fourth cable is connected to the third arm, and the other end passes around the second movable pulley and is connected to the first arm.

[0024] In one embodiment, the top end of the fourth arm is sealed. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1a Schematic diagram of the first working state of the mobile short-wave antenna system according to an embodiment of the present invention;

[0026] Figure 1b Top view of the mobile short-wave antenna system shown in FIG. 1;

[0027] Figure 2 Schematic diagram of the first working state of the slewing assembly;

[0028] Figure 3 Schematic diagram of the second working state of the slewing assembly;

[0029] Figure 4 Simplified structural diagram of the assembly composed of the upper slewing body, the lower slewing body, and the drive mechanism;

[0030] Figure 5 Schematic three-dimensional structure diagram of the boom assembly;

[0031] Figure 6 Simplified structure diagram of the boom assembly;

[0032] Figure 7 Simplified structure diagram of the boom assembly after removing the rope and pulley drive assembly;

[0033] Figure 8aSchematic diagram of the second working state of the mobile short-wave antenna system described in Figure 1;

[0034] Figure 8b is Figure 8a Top view of the mobile short-wave antenna system shown;

[0035] Figure 9a Schematic diagram of the third working state of the mobile short-wave antenna system described in Figure 1;

[0036] Figure 9b is Figure 9a Top view of the mobile short-wave antenna system shown;

[0037] Figure 10a Schematic diagram of the fourth working state of the mobile short-wave antenna system described in Figure 1;

[0038] Figure 10b is Figure 10a Top view of the mobile short-wave antenna system shown;

[0039] Figure 11a Schematic diagram of the fifth working state of the mobile short-wave antenna system described in Figure 1;

[0040] Figure 11b is Figure 11a Top view of the mobile short-wave antenna system shown;

[0041] Figure 12a Schematic diagram of the sixth working state of the mobile short-wave antenna system described in Figure 1;

[0042] Figure 12b is Figure 12a Top view of the mobile short-wave antenna system shown;

[0043] Figure 13a Schematic diagram of the seventh working state of the mobile short-wave antenna system described in Figure 1;

[0044] Figure 13b is Figure 13a Top view of the mobile short-wave antenna system shown;

[0045] Figure 14a Schematic diagram of the eighth working state of the mobile short-wave antenna system described in Figure 1;

[0046] Figure 14b is Figure 14a Top view of the mobile short-wave antenna system shown.

[0047] In the figure:

[0048] 10. Traction assembly; 20. Axle assembly; 30. Slewing assembly; 31. Lower slewing body; 32. Upper slewing body; 321. First connecting part; 322. Second connecting part; 33. Driving mechanism; 331. Slewing gear; 332. Reducer; 34. First outrigger; 35. First outrigger cylinder; 36. Second outrigger; 37. Second outrigger cylinder; 38. Balanced support telescopic assembly; 381. Support cylinder; 382. Support block; 40. Antenna assembly; 41. First antenna; 42. Second antenna; 43. Third antenna; 44. Fourth antenna; 50. Boom assembly; 51. First boom; 511. First limit plate; 512. Mounting plate; 513. First cavity; 514. Second cavity; 52. Second boom; 521. First slider; 522. Second limit plate; 53. Third boom; 531. Second slider; 532. Third limit plate; 54. Fourth boom; 541. Fourth limit plate; 542. Third slider; 551. Cable pull hydraulic cylinder; 552. First fixed pulley; 553. Second fixed pulley; 554. First movable pulley; 555. Second movable pulley; 556. First cable; 557. Second cable; 558. Third cable; 559. Fourth cable; 56. Boom wire plug-in; 60. Wire pushing mechanism; 70. Boom pushing mechanism. Detailed implementation manners

[0049] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by terms such as "length", "width", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present invention.

[0050] In the description of the present invention, unless otherwise clearly specified and limited, the terms "connection" and "fixation" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

[0051] In the present invention, unless otherwise clearly specified and limited, the first feature being "above" or "below" the second feature may include the direct contact between the first and second features, or may include the situation where the first and second features are not in direct contact but in contact through other features therebetween.

[0052] The technical solution of the present invention will be further described below with reference to the drawings and through specific implementation manners.

[0053] Please refer to Figure 1a which shows a mobile short-wave antenna system according to an embodiment of the present invention, including an antenna assembly 40, a slewing assembly 30, an axle assembly 20, a towing assembly 10, a push arm mechanism 70, a wire pushing mechanism 60 and an electrical control system. The antenna assembly 40 can be deployed for transmitting signals. The slewing assembly 30 is connected to the boom assembly 50 and is used to drive the boom assembly 50 to rotate the antenna assembly 40 along a horizontal plane, so that after the antenna assembly 40 is deployed, it can rotate to the azimuth of the target position along the horizontal plane, so that the antenna assembly 40 can be aligned with the target position to transmit signals. The push arm mechanism 70 is connected to the boom assembly 50 and the slewing assembly 30 and is used to push the boom assembly 50 to rotate along a vertical plane, so that the boom assembly 50 can lift the antenna assembly 40 to a specified height. The wire pushing mechanism 60 is connected to the boom assembly 50 and the antenna assembly 40 and is used to push the antenna assembly 40 to rotate when the push arm mechanism 70 pushes the boom assembly 50 to rotate, so that the antenna assembly 40 is always in a horizontal state. The axle assembly 20 is located on one side of the slewing assembly 30 and is used to connect the other side of the boom assembly 50 in a horizontal state when transporting the antenna assembly 40, so as to support the antenna assembly 40 and facilitate the handling of the antenna assembly 40. The towing assembly 10 is located on the other side of the slewing assembly 30 and is used to connect the slewing assembly 30 and pull the slewing assembly 30 to realize the handling of the antenna assembly 40. The electrical control system is electrically connected to the push arm mechanism 70, the wire pushing mechanism 60, the slewing assembly 30 and the antenna assembly 40 respectively and is used to control the operation of the push arm mechanism 70, the wire pushing mechanism 60, the slewing assembly 30 and the antenna assembly 40.

[0054] During operation, when the use location of the antenna is determined, the slewing assembly 30 is towed by the towing assembly 10 to pull the antenna assembly 40 to the specified use location. When the antenna assembly 40 is to be used, the electrical control system controls the push arm mechanism 70 to push the boom assembly 50 to rotate, so that the boom assembly 50 changes from a horizontal state to a vertical state, realizing lifting the antenna assembly 40 to a specified height. At the same time, the electrical control system controls the wire pushing mechanism 60 to drive the antenna assembly 40 to rotate, so that the antenna assembly 40 is in a horizontal state during the rotation of the boom assembly 50. Subsequently, the electrical control system controls the antenna assembly 40 to deploy. When the antenna assembly 40 is not needed, the electrical control system controls the antenna assembly 40 to fold, and then the electrical control system controls the push arm mechanism 70 to push the boom assembly 50 to rotate in the reverse direction, so that the boom assembly 50 changes from a vertical state to a horizontal state. At the same time, the electrical control system also controls the wire pushing mechanism 60 to drive the antenna assembly 40 to rotate, so that the antenna assembly 40 remains horizontal during the reverse rotation of the boom assembly 50.

[0055] The mobile shortwave antenna system of the present invention can pull the antenna assembly 40 to a designated location through the traction of the traction assembly 10; the arm assembly 50 is driven to rotate by the push arm mechanism 70, and the wire pushing mechanism 60 pushes the antenna assembly 40 to rotate, so that the antenna assembly 40 can be lifted to a designated height when the antenna assembly 40 is needed, without the need to build a large scaffold, and without the need to dismantle the large scaffold after it is built, thereby reducing costs; and when the antenna assembly 40 is not in use, the antenna assembly 40 can be lowered back to its original position, and the antenna assembly 40 can be in a horizontal state, which can effectively reduce the transportation size, facilitate transportation, and do not need to perform high-altitude maintenance of the antenna assembly 40, thereby facilitating the installation and maintenance of the antenna assembly 40 and reducing the maintenance risk factor.

[0056] The axle assembly 20 is a two-axle axle, and uses 8 load-bearing tires with a diameter of 1.1m. The axle assembly 20 is connected to the arm assembly 50 through a latch, so that the arm assembly 50 is locked on the axle assembly 20 when the antenna assembly 40 is transported, so that the axle assembly 20 supports the horizontally placed antenna assembly 40. When the antenna assembly 40 is to be lifted to a specified height, the latch that locks the arm assembly 50 on the axle assembly 20 needs to be pulled out to unlock the arm assembly 50 from the axle assembly 20.

[0057] See also Figures 2 to 4 The rotating assembly 30 includes a lower rotating body 31, an upper rotating body 32 located above the lower rotating body 31, and a driving mechanism 33 electrically connected to the electrical control system. The driving mechanism 33 is connected to the upper rotating body 32 and is used to drive the upper rotating body 32 to rotate with the arm assembly 50, so that the antenna assembly 40 can rotate 360° along the horizontal plane.

[0058] The upper rotating body 32 includes a first connecting portion 321 connected to the traction assembly 10 and a second connecting portion 322 provided corresponding to the lower rotating body 31 , and the second connecting portion 322 is connected to the driving mechanism 33 .

[0059] The driving mechanism 33 includes a rotating gear 331 and a reducer 332 meshing with the rotating gear 331. The rotating gear 331 is fixedly connected to the lower rotating body 31 and pivotally connected to the upper rotating body 32. The reducer 332 is electrically connected to the electrical control system and is located in the upper rotating body 32. When working, the rotating gear 331 is driven to rotate by the reducer 332, so that the upper rotating body 32 rotates.

[0060] The slewing assembly 30 further includes a support mechanism. The support mechanism includes two first leg assemblies symmetrically arranged at one end of the lower slewing body 31 close to the traction assembly 10, two second leg assemblies symmetrically arranged at one end of the lower slewing body 31 close to the axle assembly, and a balanced support telescopic assembly 38. The first leg assembly includes a first leg 34 pivotally connected to one end of the lower slewing body 31 and a first leg pushing oil cylinder 35 pivotally connecting the first leg 34 and the lower slewing body 31. The second leg assembly includes a second leg 36 pivotally connected to the other end of the lower slewing body 31 and a second leg pushing oil cylinder 37 pivotally connecting the second leg 36 and the lower slewing body 31. A balanced support telescopic assembly 38 is provided at the free end of each of the first leg 34 and the second leg 36. The first leg pushing oil cylinder 35, the second leg pushing oil cylinder 37, and the balanced support telescopic assembly 38 are all electrically connected to the electrical control system. The support mechanism is used to increase the balance of the mobile short-wave antenna system and prevent the slewing assembly 30 carrying the boom assembly 50 and the antenna assembly 40 from tipping over due to insufficient balance when the antenna assembly 40 is lifted. When the support mechanism is not in use, both the first leg 34 and the second leg 36 are parallel to the lower slewing body 31, and the free ends of the first leg 34 and the second leg 36 both face the axle assembly 20. At this time, the first leg 34 and the second leg 36 are in a folded state. When the support mechanism is in use, first, the two first leg pushing oil cylinders 35 respectively push the corresponding first legs 34 to rotate along the horizontal plane in the direction of the traction assembly 10 until the angle between the first legs 34 reaches a specified angle. Then, the two second leg pushing oil cylinders 37 respectively push the corresponding second legs 36 to rotate outward along the horizontal plane until the angle between the second legs 36 reaches a specified angle. At this time, the two first legs 34 and the two second legs 36 are arranged in an X shape, and the first leg 34 and the second leg 36 are in an extended state. After the first leg 34 and the second leg 36 are in an extended state, the balanced support telescopic assembly 38 extends to contact the ground so that the deployed support mechanism contacts the ground to play a role in supporting and balancing.

[0061] In this embodiment, the balanced support telescopic assembly 38 includes a support oil cylinder 381 and a support block 382 connected to the output shaft of the support oil cylinder 381. The support block 382 is used to contact the ground.

[0062] Please refer to again Figure 1a, the antenna assembly 40 includes a first antenna 41, a second antenna 42, a third antenna 43, and a fourth antenna 44 arranged in sequence from bottom to top. The first antenna 41 is hinged to the boom assembly 50. When the boom assembly 50 is not extended, the first antenna 41, the second antenna 42, the third antenna 43, and the fourth antenna 44 are locked by plugging. For example, antenna plugs (not shown in the figure) are provided on the second antenna 42, the third antenna 43, and the fourth antenna 44. The antenna plugs on the second antenna 42, the third antenna 43, and the fourth antenna 44 are used to be plugged into the first antenna 41, the second antenna 42, and the third antenna 43 respectively, so that the first antenna 41, the second antenna 42, the third antenna 43, and the fourth antenna 44 are locked to each other.

[0063] Please refer to Figures 5 to 7, In this embodiment, the boom assembly 50 includes a first boom 51 hinged to the upper slewing body 32, a second boom 52 slidably disposed within the first boom 51, a third boom 53 slidably disposed within the second boom 52, a fourth boom 54 slidably disposed within the third boom 53, and a rope drive assembly for linking the second boom 52, the third boom 53, and the fourth boom 54. Boom line connectors 56 are provided on the second boom 52, the third boom 53, and the fourth boom 54. The boom line connectors 56 provided on the second boom 52, the boom line connectors 56 provided on the third boom 53, and the boom line connectors 56 provided on the fourth boom 54 are respectively used to plug into the second antenna 42, the third antenna 43, and the fourth antenna 44. The rope drive assembly is used to drive the second boom 52, the third boom 53, and the fourth boom 54 to extend out of the first boom 51, the second boom 52, and the third boom 53 respectively. The extension process of the second boom 52, the third boom 53, and the fourth boom 54 is divided into three stages. The first stage is: the second boom 52 passes through the first antenna 41 and extends between the first antenna 41 and the second antenna 42, and the boom line connector 56 provided on the second boom 52 is plugged into the second antenna 42, so as to lock between the second boom 52 and the second antenna 42; at the same time, the third boom 53 passes through the second antenna 42 and extends between the second antenna 42 and the third antenna 43, and the boom line connector 56 provided on the third boom 53 is plugged into the third antenna 43, so as to lock between the third boom 53 and the third antenna 43; at the same moment, the fourth boom 54 passes through the third antenna 43 and extends between the third antenna 43 and the fourth antenna 44, and the boom line connector 56 provided on the fourth boom 54 is plugged into the fourth antenna 44, so as to lock between the fourth boom 54 and the fourth antenna 44. The second stage is: the second boom 52, the third boom 53, and the fourth boom 54 continue to extend, and respectively push the second antenna 42, the third antenna 43, and the fourth antenna 44, so as to separate the first antenna 41, the second antenna 42, the third antenna 43, and the fourth antenna 44 from each other and release the plug-in lock between the antennas; The third stage: after the lock between the antennas is released, the second boom 52, the third boom 53, and the fourth boom 54 continue to extend until the distances between the first antenna 41, the second antenna 42, the third antenna 43, and the fourth antenna 44 are all the specified distances.

[0064] The rope and pulley drive assembly includes a rope-pulling hydraulic cylinder 551, a first fixed pulley 552, a second fixed pulley 553, a first movable pulley 554, a second movable pulley 555, a first rope 556, a second rope 557, a third rope 558, and a fourth rope 559. The rope-pulling hydraulic cylinder 551 is electrically connected to the electrical control system, and the output shaft of the rope-pulling hydraulic cylinder 551 is connected to the bottom of the first arm 51. The top end of the cylinder body of the rope-pulling hydraulic cylinder 551 passes through the second arm 52 and the third arm 53 and extends into the fourth arm 54. A first fixed pulley 552 is provided at the top end of the cylinder body of the rope-pulling hydraulic cylinder 551. The second fixed pulley 553 is located on one side of the first fixed pulley 552 and is between the third arm 53 and the fourth arm 54. The first movable pulley 554 and the second movable pulley 555 are located on the other side of the first fixed pulley 552. The first movable pulley 554 is between the rope-pulling hydraulic cylinder 551 and the fourth arm 54, and the first movable pulley 554 is below the third arm 53 and is connected to the third arm 53. The second movable pulley 555 is between the third arm 53 and the first arm 51, and the second movable pulley 555 is below the second arm 52 and is connected to the second arm 52. One end of the first rope 556 is connected to the bottom end of the second arm 52, and the other end passes around the second fixed pulley 553 and is connected to the bottom end of the fourth arm 54. One end of the second rope 557 is connected to the bottom end of the third arm 53, and the other end passes around the first fixed pulley 552 and is connected to the first arm 51. One end of the third rope 558 is connected to the cylinder body of the rope-pulling hydraulic cylinder 551, and the other end passes around the first movable pulley 554 and is connected to the top end of the fourth arm 54. One end of the fourth rope 559 is connected to the bottom end of the third arm 53, and the other end passes around the second movable pulley 555 and is connected to the top end of the first arm 51.

[0065] In this embodiment, the first movable pulley 554 and the third arm 53 are pivotally connected by a pin shaft, and the second movable pulley 555 and the second arm 52 are pivotally connected by a pin shaft.

[0066] To prevent the first arm 51 and the second arm 52 from shaking, a first slider 521 is provided on the outer wall of the second arm 52. The first slider 521 abuts against the inner wall of the first arm 51 and is arranged offset from the fourth rope 559. To prevent the second arm 52 and the third arm 53 from shaking, a second slider 531 is provided on the outer wall of the third arm 53. The second slider 531 abuts against the inner wall of the second arm 52. To prevent the third arm 53 and the fourth arm 54 from sliding, a third slider 542 is provided on the outer wall of the fourth arm 54. The third slider 542 abuts against the inner wall of the third arm 53 and is arranged offset from the first rope 556.

[0067] In this embodiment, a mounting plate 512 is provided inside the first arm 51. The mounting plate 512 divides the inner cavity of the first arm 51 into a first cavity 513 and a second cavity 514 located below the first cavity 513. The cable pull hydraulic cylinder 551 is located in the first cavity 513 and is mounted on the mounting plate 512. In other feasible embodiments, a drain port may be provided on the mounting plate 512 to drain the water that enters the first cavity 513 into the second cavity 514, preventing the water from entering the first cavity 513 and affecting the operation of the cable pull hydraulic cylinder 551.

[0068] At the edge of the top end of the first arm 51, a first limiting plate 511 extends outward. At the edge of the top end of the second arm 52, a second limiting plate 522 extends outward. At the edge of the top end of the third arm 53, a third limiting plate 532 extends outward. At the edge of the top end of the fourth arm 54, a fourth limiting plate 541 extends outward. The first limiting plate 511, the second limiting plate 522, the third limiting plate 532, and the fourth limiting plate 541 are arranged in sequence along the central axis direction of the first arm 51. Arm line connectors 56 are provided on the second limiting plate 522, the third limiting plate 532, and the fourth limiting plate 541. When the boom assembly 50 is in the original non-extended state, the second limiting plate 522 presses on the first limiting plate 511 to reduce the loads borne by the first cable 556 and the fourth cable 559, and the third limiting plate 532 presses on the second limiting plate 522 to reduce the load borne by the third cable 559. When the boom assembly 50 extends, the second limiting plate 522, the third limiting plate 532, and the fourth limiting plate 541 are respectively used to support the second antenna 42, the third antenna 43, and the fourth antenna 44.

[0069] Optionally, the top end of the fourth arm 54 is sealed to cover the cable pull hydraulic cylinder 551, preventing external rainwater from falling on the cable pull hydraulic cylinder 551 and protecting the cable pull hydraulic cylinder 551.

[0070] In this embodiment, both the push arm mechanism 70 and the push line mechanism 60 are hydraulic cylinders. The push arm mechanism 70 pivotally connects the upper swing assembly 30 and the first arm 51 of the boom assembly 50, and the push line mechanism 60 pivotally connects the boom assembly 50 and the first antenna 41 of the antenna assembly 40.

[0071] In this embodiment, a towing pin (not shown in the figure) is provided on the towing assembly 10. The towing pin is inserted into the upper swing body 32 of the swing assembly 30. After the first leg 34 and the second leg 36 of the support mechanism are opened and the balance support telescopic assembly 38 extends, the support mechanism can drive the upper swing body 32 with the towing pin to rise and separate from the towing assembly 10, realizing the separation of the towing assembly 10 and the swing assembly 30.

[0072] The specific working principle of the mobile short-wave antenna system in this embodiment is as follows:

[0073] like Figure 1a As shown, in the transport state, the upper rotating body 32 on the rotating assembly 30 is inserted into the traction assembly 10 through the traction pin and is movably hinged with the traction assembly 10, the upper rotating body 32 and the lower rotating assembly 30 are at an initial angle, the first leg 34 and the second leg 36 of the supporting mechanism are folded on the lower rotating body 31, the arm assembly 50 is in a horizontal state and is locked to the axle assembly 20 through the connecting pin, and the antenna assembly 40 is in a horizontal state.

[0074] After the mobile shortwave antenna system arrives at the destination, the state of the part below 50 of the boom assembly is as follows: Figure 1a and Figure 1b As shown, to complete the deployment action, first, the two first leg-pushing cylinders 35 push the corresponding first legs 34 to rotate, and the two second leg-pushing cylinders 37 push the corresponding second legs 36, until the two first legs 34 and the two second legs 36 are distributed in an X shape. The first legs 34 and the second legs 36 are deployed as shown in FIG. Figure 8a and Figure 8b shown.

[0075] After the first leg 34 and the second leg 36 are deployed, the traction assembly 10 moves back slightly, the balance support telescopic assembly 38 extends to contact the ground, and while leveling the slewing assembly 30, the upper slewing body 32 and the traction pin of the traction assembly 10 move upward to disengage from the traction assembly 10, and the traction assembly 10 moves forward and disengages from the slewing assembly 30. The connecting pin that locks the arm assembly 50 on the axle assembly 20 is removed, and then the axle assembly 20 moves back to disengage from the arm assembly 50, as shown in FIG. Figure 9a , Figure 9b shown.

[0076] After the traction assembly 10 and the axle assembly 20 are separated from the main engine by a certain distance, the electrical control system controls the push arm mechanism 70 to extend, and the extended push arm mechanism 70 pushes the arm assembly 50 to rotate upward with the antenna assembly 40. At the same time, the electrical control system controls the push wire mechanism 60 to push the antenna assembly 40 to rotate along the vertical plane. The push arm mechanism 70 and the push wire mechanism 60 are adjusted by the electrical control system so that the antenna assembly 40 always maintains a horizontal state during the rising process. This helps to lock the first antenna 41, the second antenna 42, the third antenna 43 and the fourth antenna 44 during the rising process of the antenna assembly 40. Figure 10a , Figure 10b The diagram shows a state in which the arm assembly 50 rotates to cause the antenna assembly 40 to rise.

[0077] After the process of the rotation of the boom assembly 50 causing the antenna assembly 40 to rise is completely finished, the boom assembly 50 is perpendicular to the upper slewing body 32, the antenna assembly 40 is in a horizontal state, and the locking state is still maintained between adjacent antenna assemblies 40, as Figure 11a , Figure 11b shown.

[0078] After that, the electric control system controls the pull rope hydraulic cylinder 551, so that the boom assembly 50 extends under the action of the rope row drive assembly, and the second boom 52, the third boom 53, and the fourth boom 54 move simultaneously. After the length of the output shaft of the pull rope hydraulic cylinder 551 extends to the first specified length, the boom line plugs 56 provided on the second boom 52, the boom line plugs 56 on the third boom 53, and the boom line plugs 56 on the fourth boom 54 rise and are respectively inserted into the second antenna 42, the third antenna 43, and the fourth antenna 44, so that the second antenna 42, the third antenna 43, and the fourth antenna 44 are respectively locked on the second boom 52, the third boom 53, and the fourth boom 54; Subsequently, the output shaft of the pull rope hydraulic cylinder 551 continues to extend, and the second boom 52, the third boom 53, and the fourth boom 54 respectively push the second antenna 42, the third antenna 43, and the fourth antenna 44 to move upward. When the length of the output shaft of the wire pushing mechanism 60 extends to the second specified length, the second antenna 42, the third antenna 43, and the fourth antenna 44 respectively leave the first antenna 41, the second antenna 42, and the third antenna 43, and the plug-in locking between the first antenna 41, the second antenna 42, the third antenna 43, and the fourth antenna 44 is released.

[0079] After each antenna and each boom are correspondingly locked and the locking between adjacent antennas is released, the electric control system controls the output shaft of the pull rope hydraulic cylinder 551 to continue to extend, and the rope row drive assembly drives the second boom 52, the third boom 53, and the fourth boom 54 in the boom assembly 50 to continue to extend. Since the second antenna 42 is locked with the second boom 52, the third antenna 43 is locked with the third boom 53, and the fourth antenna 44 is locked with the fourth boom 54, and at the same time the locking between adjacent antennas has been released, the movements of the second boom 52, the third boom 53, and the fourth boom 54 will continue to drive the second antenna 42, the third antenna 43, and the fourth antenna 44 to rise respectively.

[0080] Due to the structural characteristics of the push rope oil cylinder, the extension speeds of the second boom 52, the third boom 53, and the fourth boom 54 are in the ratio of 1:2:3. Then, the displacement between the second boom 52 and the first boom 51, the displacement between the third boom 53 and the second boom 52, and the displacement between the fourth boom 54 and the third boom 53 are equal at any movement moment. Therefore, the distances between the second antenna 42 and the first antenna 41, between the third antenna 43 and the second antenna 42, and between the fourth antenna 44 and the third antenna 43 are equal at any movement moment.

[0081] Therefore, controlling the elongation of the output shaft of the final pull-rod hydraulic cylinder 551 can meet the performance requirements of the antenna assembly 40, such as Figure 12a , Figure 12b As shown in Figure 12a and Figure 12b , it is a state where the boom assembly 50 meets the performance of the antenna assembly 40 after elongation. After the boom assembly 50 elongates, the antenna assembly 40 unfolds under the control of the electrical control system. After unfolding, as shown in Figure 13a , Figure 13b .

[0082] After the antenna assembly 40 unfolds, to aim at the target emission position and emit signals, the electrical control system is used to control the reducer 332 to work, and then drive the upper slewing body 32 to rotate on the lower slewing assembly 30. As shown in Figure 14a , Figure 14b , it shows the working attitude when the whole machine rotates clockwise by 89°.

[0083] The folding process of the whole machine is exactly the opposite of the unfolding process of the whole machine. That is, first fold the antenna assembly 40, then contract the boom assembly 50 to a certain length, lock between adjacent antennas of the antenna assembly 40, and release the locks between the second boom 52, the third boom 53 and the fourth boom 54 and the second antenna 42, the third antenna 43 and the fourth antenna 44 respectively. Continue to contract the boom assembly 50 to the initial state, and then under the action of the electrical control system, drive the output shafts of the push boom mechanism 70 and the push wire mechanism 60 to retract, so that the boom assembly 50 is placed horizontally, the antenna assembly 40 is placed horizontally on the boom assembly 50, connect the towing assembly 10 to the upper slewing body 32, and connect the axle assembly 20 to the boom assembly 50, then it can be transported on the road.

[0084] It should be noted that the structure proposed in this patent has been verified by ADAMS (Automatic Dynamic Analysis of Mechanical Systems) mechanism simulation and PROE (Pro / Engineer) mechanism analysis module. Therefore, during the movement process, only need to extend or shorten the oil cylinder according to the operating procedures.

[0085] The above embodiments only represent several implementation manners of the present invention. The description is relatively specific and detailed, but it cannot be understood as a limitation to the scope of the invention patent. It should be pointed out that for those of ordinary skill in the art, without departing from the concept of the present invention, several deformations and improvements can still be made, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the present invention patent should be subject to the appended claims.

Claims

1. A mobile short-wave antenna system, characterized in that, it comprises: a deployable antenna assembly for transmitting signals; a boom assembly, one end of which is hinged to the antenna assembly; a slewing assembly, hinged to the boom assembly, for driving the boom assembly with the antenna assembly to rotate along a horizontal plane; a push-arm mechanism, connecting the boom assembly and the slewing assembly, for pushing the boom assembly with the antenna assembly to rotate along a vertical plane; a wire-pushing mechanism, connecting the antenna assembly and the boom assembly, for pushing the antenna assembly to rotate so that the antenna assembly always maintains a horizontal state; an axle assembly, located on one side of the slewing assembly and detachably connected to the other end of the boom assembly; a traction assembly, located on the other side of the slewing assembly and connected to the slewing assembly; wherein, the slewing assembly includes a lower slewing body, an upper slewing body located above the lower slewing body, and a driving mechanism; the upper slewing body is connected to the traction assembly, and the driving mechanism is connected to the upper slewing body for driving the upper slewing body to rotate relative to the lower slewing body; the antenna assembly includes a first antenna, a second antenna, a third antenna and a fourth antenna arranged in sequence from bottom to top, the first antenna is hinged to the boom assembly, when the boom assembly is not extended, the first antenna, the second antenna, the third antenna and the fourth antenna are locked by plugging; the boom assembly includes a first boom hinged to the upper slewing body, a second boom slidably arranged in the first boom, a third boom slidably arranged in the second boom, a fourth boom slidably arranged in the third boom, and a rope-row driving assembly for linking the second boom, the third boom and the fourth boom, arm wire plugs are arranged on the second boom, the third boom and the fourth boom, and the arm wire plugs arranged on the second boom, the arm wire plugs arranged on the third boom, and the arm wire plugs arranged on the fourth boom are respectively used for plugging into the second antenna, the third antenna and the fourth antenna; the rope-row driving assembly is used for driving the second boom, the third boom and the fourth boom to extend out of the first boom, the second boom and the third boom respectively; the boom assembly is in a horizontal state and is locked to the axle assembly through a connecting pin, and the antenna assembly is in a horizontal state.

2. The mobile short-wave antenna system according to claim 1, characterized in that, the slewing assembly further includes a support mechanism, the support mechanism includes two first leg assemblies symmetrically arranged at one end of the lower slewing body close to the traction assembly, two second leg assemblies symmetrically arranged at one end of the lower slewing body close to the axle assembly, and a balance support telescopic assembly, the first leg assembly includes a first leg with one end pivotally connected to one end of the lower slewing body and a first push-leg oil cylinder pivotally connecting the first leg and the lower slewing body, the second leg assembly includes a second leg with one end pivotally connected to the other end of the lower slewing body and a second push-leg oil cylinder pivotally connecting the second leg and the lower slewing body; balance support telescopic assemblies are arranged at the free ends of the first leg and the second leg.

3. The mobile short-wave antenna system according to claim 2, wherein, the balanced support telescopic assembly includes a support oil cylinder and a support block connected to the output shaft of the support oil cylinder, and the support block is used to contact the ground.

4. The mobile short-wave antenna system according to claim 1, wherein, the drive mechanism includes a slewing gear and a speed reducer meshing with the slewing gear. The slewing gear is fixedly connected to the lower slewing body and pivotally connected to the upper slewing body, and the speed reducer is located inside the upper slewing body.

5. The mobile short-wave antenna system according to claim 1, wherein, the slewing assembly is provided with a towing pin, and the towing pin is inserted into the towing assembly.

6. The mobile short-wave antenna system according to claim 1, wherein, antenna plugs are provided on the second antenna, the third antenna and the fourth antenna respectively. The antenna plugs on the second antenna, the third antenna and the fourth antenna are used to be inserted into the first antenna, the second antenna and the third antenna respectively, so as to lock the first antenna, the second antenna, the third antenna and the fourth antenna to each other.

7. The mobile short-wave antenna system according to claim 1, wherein, a first limiting plate extends outward from the edge of the top of the first arm, a second limiting plate extends outward from the edge of the top of the second arm, a third limiting plate extends outward from the edge of the top of the third arm, a fourth limiting plate extends outward from the edge of the top of the fourth arm. The first limiting plate, the second limiting plate, the third limiting plate and the fourth limiting plate are arranged in sequence along the central axis direction of the first arm, and arm wire plugs are provided on the second limiting plate, the third limiting plate and the fourth limiting plate.

8. The mobile short-wave antenna system according to claim 1, wherein, The rope and pulley drive assembly includes a rope-pulling hydraulic cylinder, a first fixed pulley, a second fixed pulley, a first movable pulley, a second movable pulley, a first rope, a second rope, a third rope, and a fourth rope. The output shaft of the rope-pulling hydraulic cylinder is connected to the bottom end of the first arm; the top end of the cylinder body of the rope-pulling hydraulic cylinder passes through the second arm and the third arm and extends into the fourth arm, and a first fixed pulley is provided at the top end of the cylinder body of the rope-pulling hydraulic cylinder; the second fixed pulley is located between the third arm and the fourth arm; the first movable pulley and the second movable pulley are located on the side of the first fixed pulley away from the second fixed pulley. The first movable pulley is located between the rope-pulling hydraulic cylinder and the fourth arm and is connected to the third arm; the second movable pulley is located between the third arm and the first arm and is connected to the second arm; one end of the first rope is connected to the bottom end of the second arm, and the other end passes around the second fixed pulley and is connected to the bottom end of the fourth arm; one end of the second rope is connected to the bottom end of the third arm, and the other end passes around the first fixed pulley and is connected to the first arm; one end of the third rope is connected to the cylinder body of the rope-pulling hydraulic cylinder, and the other end passes around the first movable pulley and is connected to the top end of the fourth arm; one end of the fourth rope is connected to the bottom end of the third arm, and the other end passes around the second movable pulley and is connected to the top end of the first arm.

9. The mobile short-wave antenna system according to claim 8, characterized in that the first movable pulley and the third arm are pivotally connected by a pin shaft, and the second movable pulley and the second arm are pivotally connected by a pin shaft; a first slider is provided on the outer wall of the second arm, the first slider abuts against the inner wall of the first arm and is arranged out of alignment with the fourth rope; a second slider is provided on the outer wall of the third arm, and the second slider abuts against the inner wall of the second arm; a third slider is provided on the outer wall of the fourth arm, the third slider abuts against the inner wall of the third arm and is arranged out of alignment with the first rope.

10. The mobile short-wave antenna system according to claim 8, characterized in that the top end of the fourth arm is sealed.

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