CN109659662B - Telescopic arm type antenna unfolding mechanism - Google Patents
Telescopic arm type antenna unfolding mechanism Download PDFInfo
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- CN109659662B CN109659662B CN201910101818.5A CN201910101818A CN109659662B CN 109659662 B CN109659662 B CN 109659662B CN 201910101818 A CN201910101818 A CN 201910101818A CN 109659662 B CN109659662 B CN 109659662B
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/08—Means for collapsing antennas or parts thereof
- H01Q1/10—Telescopic elements
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Abstract
The invention discloses a telescopic arm type antenna unfolding mechanism, which comprises a box type telescopic arm, is an integral framework of the telescopic arm type antenna unfolding mechanism and comprises a plurality of jointed arms which are mutually sleeved; the transverse expansion oil cylinder group is arranged in the box-type telescopic arm and provides linear driving force for the telescopic arm type antenna expansion mechanism; the pulley transmission device is used for realizing the unfolding and folding actions of the box-type telescopic arm, is fixed in the box-type telescopic arm and is arranged corresponding to the transverse oil cylinder group; the combined slide rail is arranged on the outer side of the wall surface of the box-type telescopic boom, and is provided with a square slide block which is connected with the antenna framework and used for realizing the synchronous expansion of the antenna framework; the antenna unfolding mechanism with the telescopic arm structure is arranged, so that the antenna erection time is shortened, the erection steps are simplified, and the antenna erection reliability is improved.
Description
Technical Field
The invention relates to the technical field of antenna equipment, in particular to a telescopic arm type antenna unfolding mechanism.
Background
With the increasing technical development and demand, the requirement on the high mobility of the ground radar is higher and higher, wherein the high mobility of the radar is directly influenced by the good and bad spreading and receiving performance of an antenna array surface. Meanwhile, the development of the radar with a large aperture array surface is a trend, which undoubtedly restricts the development of the high mobility of the radar.
The existing radar antenna is usually erected through multiple actions of antenna inverting and erecting, rotating and folding and the like; this type of erection directly results in an excessively long time for erecting the antenna, complicated erecting steps, and reduced reliability.
In view of the above-mentioned drawbacks, the inventors of the present invention have finally obtained the present invention through a long period of research and practice.
Disclosure of Invention
In order to solve the technical problem, the present invention adopts a technical solution that a telescopic arm type antenna deployment mechanism is provided, including:
the box-type telescopic arm is an integral framework of the telescopic arm type antenna unfolding mechanism and comprises a plurality of jointed arms which are mutually sleeved;
the transverse expansion oil cylinder group is arranged in the box-type telescopic arm and provides linear driving force for the telescopic arm type antenna expansion mechanism;
the pulley transmission device is used for realizing the unfolding and folding actions of the box-type telescopic arm, is fixed in the box-type telescopic arm and is arranged corresponding to the transverse oil cylinder group;
the combined sliding rail is arranged on the outer side of the wall surface of the box-type telescopic arm, and is provided with a square sliding block which is connected with the antenna framework and used for realizing synchronous unfolding of the antenna framework.
Preferably, the box-type telescopic arm comprises a first section arm, a second section arm and a third section arm; the second section arm is sleeved in the first section arm, the third section arm is sleeved in the second section arm, and the transverse expansion oil cylinder group comprises an oil cylinder piston rod and an oil cylinder body; the end part of the piston rod of the oil cylinder is fixed at the end part of the first knuckle arm, and the cylinder body of the oil cylinder is fixed at the end part of the second knuckle arm, which is close to the first knuckle arm.
Preferably, the pulley transmission device comprises an unfolding pulley block and a resetting pulley block; the reset pulley block is arranged on the left side surface and the right side surface of the end part of the second section arm; the unfolding pulley block is arranged at the end position of the transverse unfolding cylinder group in the third section of arm, the transverse unfolding cylinder group is used for realizing the unfolding operation of the telescopic arm type antenna unfolding mechanism through the unfolding pulley block, and the folding operation of the telescopic arm type antenna unfolding mechanism is realized through the resetting pulley block.
Preferably, the reset pulley block comprises a reset pulley shaft, a reset pulley and a reset steel wire rope; the reset pulleys are arranged at the end part of the second section arm close to the first section arm in an axial symmetry manner, and the reset pulleys are arranged on the reset pulley shafts; one end of the reset steel wire rope is fixed at the end part of the first section arm, and the other end of the reset steel wire rope bypasses the reset pulley and is fixed at the end part of the third section arm.
Preferably, the unfolding pulley block comprises an unfolding pulley shaft, an unfolding pulley and an unfolding steel wire rope, the unfolding pulley shaft is installed at the end part of the cylinder body in the third section arm body, and the unfolding pulley is installed on the unfolding pulley shaft; one end of the unfolding steel wire rope is fixed at the end part of the first section arm, and the other end of the unfolding steel wire rope bypasses the unfolding pulley and is fixed at the end part of the third section arm.
Preferably, the horizontal oil cylinder group further comprises a supporting wheel, and the supporting wheel is installed at the end of the oil cylinder body and is in contact connection with the inner arm surface of the third section arm.
Preferably, the first knuckle arm comprises a first knuckle arm body and a first roller; the first roller is arranged on the inner side of the first arm body; the second knuckle arm comprises a second knuckle arm body, a second roller and a first guide rail; the first guide rail is arranged on the outer arm surface of the second arm body; the first guide rail and the first roller are correspondingly arranged; the second roller is arranged on the inner side of the second arm body; the third section of arm comprises a third section of arm body, a second guide rail and a third fixed seat; the second guide rail is arranged on the outer arm surface of the third arm body; the second guide rail and the second roller are correspondingly arranged.
Preferably, a gap of 0.1mm is left between the first roller and the first guide rail, and a gap of 0.1mm is left between the second roller and the second guide rail.
Preferably, the first arm further includes a first fixing seat and a first sliding seat; the first fixed seat and the first sliding seat are respectively fixed on the upper end surface of the first arm section body; the second section arm also comprises a second fixed seat and a second sliding seat; the second fixed seat and the second sliding seat are respectively fixed on the upper side of the end part of the second knuckle arm body; the third section arm also comprises a third fixed seat; the third fixing seat is fixed on the upper side of the end part of the third knuckle arm body; the combined slide rail comprises a first-stage slide rail, a second-stage slide rail and a third-stage slide rail; the first-stage slide rail is integrally fixed on the first fixed seat; one end of the second-stage sliding rail is fixed on the second fixed seat, and the bottom of the second-stage sliding rail is correspondingly arranged in the sliding guide groove of the first sliding seat; and one end of the third-stage sliding rail is fixed on the third fixing seat, and the bottom of the third-stage sliding rail is correspondingly arranged in the sliding guide grooves of the first sliding seat and the second sliding seat.
Preferably, the first section arm, the second section arm and the third section arm are formed by butt welding two U-shaped bent steel plates.
Compared with the prior art, the invention has the beneficial effects that: 1, the antenna unfolding mechanism with the telescopic arm structure is arranged, so that the antenna erection time is shortened, the erection steps are simplified, and the antenna erection reliability is improved; 2, rollers and guide rails are arranged among the sections of the telescopic arm, a reasonable gap is formed, the friction force is greatly reduced, and the blocking phenomenon caused by the manufacturing size deviation of the arm sections can be effectively avoided; 3, the transverse oil cylinder is arranged on the inner side of the telescopic arm, and the lifting pulley is fixed at the head of the cylinder body of the oil cylinder, so that the problem that the size and the weight of an adjacent arm frame are increased due to the fact that the lifting pulley is arranged between two sections of arms is solved, the space is saved, and the structure is more compact; 4, the transverse oil cylinder is provided with supporting wheels, so that the head of the oil cylinder body is changed into a beam state supported by two points from a cantilever structure supported by one point, the head of the oil cylinder body is effectively supported, the transverse oil cylinder is prevented from generating excessive deformation displacement to influence the normal extension and retraction of the arm support, and the arm support structure is protected from being damaged due to the friction effect in the extension and retraction.
Drawings
Fig. 1 is a schematic connection diagram of the telescopic-arm antenna deployment mechanism according to the present invention;
fig. 2 is a structural view of the telescopic arm type antenna deployment mechanism of the present invention;
FIG. 3 is a view showing the construction of the first link arm;
FIG. 4 is a view showing the construction of the second link arm;
FIG. 5 is a view showing the construction of the third arm;
FIG. 6 is a block diagram of the transversely extending cylinder group;
FIG. 7 is a drawing illustrating a structure of a telescopic arm type synchronous unfolding mechanism according to the present invention;
fig. 8 is a view showing a structure of the extended state of the telescopic arm type synchronous extending mechanism according to the present invention.
The figures in the drawings represent:
1-a first jointed arm; 2-a second knuckle arm; 3-third arm section; 4-transversely spreading the oil cylinder group; 5-unfolding the pulley block; 6-a reset pulley block; 7-a combined slide rail; 8-a square slider; 11-a first arm body; 12-a first roller; 13-a first fixed seat; 14-a first carriage; 21-a second arm body; 22-a second roller; 23-a first guide rail; 24-a second fixed seat; 25-a second carriage; 31-a third armbody; 32-a second guide rail; 33-a third fixed seat; 41-oil cylinder piston rod; 42-cylinder body; 43-a support wheel; 51-unwinding the pulley; 52-unwinding pulley shaft; 53-unwinding the wire rope; 61-a reset pulley; 62-a reset pulley shaft; 63-resetting the steel wire rope; 71-first stage slide rail; 72-second stage slide rail; 73-third level sled.
Detailed Description
The above and further features and advantages of the present invention are described in more detail below with reference to the accompanying drawings.
Example one
As shown in fig. 1 and 2, fig. 1 is a schematic connection diagram of the telescopic-arm antenna deployment mechanism according to the present invention; fig. 2 is a structural diagram of the telescopic arm type antenna deployment mechanism according to the present invention. The telescopic arm type antenna unfolding mechanism comprises a box type telescopic arm, a transverse unfolding oil cylinder group 4, a pulley transmission device, a combined slide rail 7 and a square slide block 8. The box-type telescopic arm comprises a plurality of sleeved joint arms and is an integral framework of the telescopic arm type antenna unfolding mechanism; the transverse spreading oil cylinder group 4 is arranged on the box-type telescopic arm and provides linear driving force for the telescopic arm type antenna spreading mechanism; the pulley transmission device is fixed in the box-type telescopic arm and is arranged corresponding to the transverse oil cylinder group 4; the pulley transmission device is a transmission device for the unfolding and folding actions of the box-type telescopic arm. The combined slide rail 7 is arranged on the outer side of the wall surface of the box-type telescopic arm, the square slide block 8 is arranged on the combined slide rail 7, and the square slide block 8 is connected with the antenna framework and used for realizing synchronous unfolding of the antenna framework.
Preferably, in this embodiment, the box-type telescopic boom includes a first knuckle boom 1, a second knuckle boom 2, and a third knuckle boom 3; the second section arm 2 is sleeved in the first section arm 1, and the third section arm 3 is sleeved in the second section arm 2 to form an integral framework of the antenna unfolding mechanism. The first section arm 1, the second section arm 2 and the third section arm 3 are formed by butt welding two U-shaped bent steel plates. And the arm surfaces of the first section arm 1, the second section arm 2 and the third section arm 3 are all provided with guide rail fixing seats for mounting the combined slide rail 7.
The transverse spreading oil cylinder combination is positioned in the antenna spreading mechanism and provides linear driving force for the whole spreading mechanism; the first joint arm 1, the second joint arm 2 and the third joint arm 3 are connected through the transverse oil cylinder group 4.
The pulley transmission device comprises an unfolding pulley block 5, a reset pulley block 6, a reset steel wire rope 63 and an unfolding steel wire rope 53. The reset pulley block 6 is arranged on the left side surface and the right side surface of the tail part of the box body of the second knuckle arm 2; the unfolding pulley block 5 is arranged at the end position of the transverse oil cylinder group 4 in the third section arm 3.
Specifically, the unfolding pulley block 5 is arranged on the transverse oil cylinder group 4, and the unfolding pulley block 5 is connected with the first section arm 1 and the third section arm 3 through the unfolding steel wire rope 53; the reset pulley block 6 is arranged on the transverse oil cylinder group 4, and the reset pulley block 6 is connected with the first section arm 1 and the second section arm 2 through the reset steel wire rope 63; the transverse spreading oil cylinder group 4 is used for realizing the spreading operation of the telescopic arm type antenna spreading mechanism through the spreading pulley block 5 and realizing the furling operation of the telescopic arm type antenna spreading mechanism through the resetting pulley block 6.
The combination slide rail 7 sets up first festival arm 1 second festival arm 2 on the third festival arm 3, square slider 8 sets up on the circle axle guide rail of combination slide rail 7, square slider 8 can freely slide on the circle axle guide rail, just square slider 8 with antenna skeleton fixed connection.
The antenna unfolding mechanism with the telescopic arm structure is arranged, so that the antenna erection time is shortened, the erection steps are simplified, and the antenna erection reliability is improved.
Example two
As shown in fig. 3, fig. 3 is a structural view of the first link arm; the first knuckle arm 1 comprises a first knuckle arm body 11, a first roller 12, a first fixed seat 13 and a first sliding seat 14; the first rollers 12 are arranged on the inner side of the first arm body 11, and 16 rollers are arranged; the first fixing seat 13 and the first sliding seat 14 are respectively fixed on the upper end surface of the first knuckle arm body.
As shown in fig. 4, fig. 4 is a structural view of the second link arm; the second knuckle arm 2 comprises a second knuckle arm body 21, a second roller 22, a first guide rail 23, a second fixed seat 24 and a second sliding seat 25; the first guide rail 23 is preferably provided with eight sections and is respectively arranged at the outer sides of the upper, lower, left and right arm surfaces of the second section arm body 21; the first guide rail 23 and the first roller 12 are correspondingly arranged, so that the stable movement of the second knuckle arm 2 in the first knuckle arm 1 is ensured; the second rollers 22 are arranged on the inner side of the second arm body 21, and 12 rollers are arranged; the second fixed seat 24 and the second slide seat 25 are respectively fixed on the upper side of the end part of the second knuckle arm body 21.
The reset pulley shafts 62 are symmetrically arranged at the left side and the right side of the end part of the second arm section 2 close to the first arm section 1, and the reset pulleys 61 are arranged on the reset pulley shafts 62; as shown in fig. 1, one end of the reset wire 63 is fixed to the end of the first arm section 1, and the other end thereof is fixed to the end of the third arm section 3 by passing over the reset pulley 61.
As shown in fig. 5, fig. 5 is a structural view of the third link arm; the third knuckle arm 3 comprises a third knuckle arm body 31, a second guide rail 32 and a third fixed seat 33; the second guide rail 32 is preferably provided with eight sections and is respectively installed at the outer sides of the upper, lower, left and right arm surfaces of the third section arm body 31; the second guide rail 32 and the second roller 22 are correspondingly arranged, so that the stable movement of the third knuckle arm 3 in the second knuckle arm 2 is ensured; the third fixing seat 33 is fixed on the upper side of the end of the third armpiece 31.
As shown in fig. 6, fig. 6 is a structural diagram of the horizontal extending cylinder group; the transverse oil cylinder group 4 comprises an oil cylinder piston rod 41, an oil cylinder body 42 and a supporting wheel 43; the end part of the oil cylinder piston rod 41 is fixed at the tail part of the first knuckle arm 1, and the oil cylinder body 42 is fixed at the tail part of the second knuckle arm 2; the supporting wheel 43 is installed at the end of the cylinder body 42 and is in contact connection with the inner arm surface of the third arm 3, so as to ensure the stable movement of the third arm 3. The utility model discloses a hydraulic control system, including first festival arm 1, hydro-cylinder 42, hydro-cylinder piston rod 41 sets up to hollow structure, hydro-cylinder piston rod 41 is fixed the tip of first festival arm 1 afterbody is provided with oil delivery port, the hydro-cylinder piston rod 41 other end sets up in the hydro-cylinder body 42, just oil delivery port accessible the hollow structure of hydro-cylinder piston rod 41 with the inside the same of hydro-cylinder body 42, through oil delivery port control hydraulic oil volume in the hydro-cylinder body 42, thereby control hydro-cylinder piston rod 41 is in flexible in the hydro.
The supporting wheels 43 are arranged, so that the end part of the oil cylinder body 42 is changed from a cantilever structure supported by one point to a beam state supported by two points, the position of the end part of the oil cylinder body 42 is effectively supported, and the phenomenon that the normal expansion of the box-type telescopic arm is influenced by the overlarge deformation displacement generated by the transversely-extending oil cylinder group 4 is avoided; the cylinder body 42 of the oil cylinder is in rolling contact with the inner wall of the box-type telescopic arm, so that the box-type telescopic arm is protected while the telescopic process of the box-type telescopic arm is stabilized, and the damage caused by the friction between the cylinder body and the transverse spreading cylinder group 4 in the telescopic process is reduced.
The unfolding pulley block 5 is provided with 2 groups, and the two unfolding pulleys 51 are respectively fixed at two ends of the unfolding pulley shaft 52; the unfolding pulley shaft 52 is installed at the end of the cylinder block 42 in the third armpiece 31, and the unfolding pulley 51 is installed on the unfolding pulley shaft 52; one end of the unfolding steel wire rope 53 is fixed at the end part of the first section arm 1, and the other end of the unfolding steel wire rope passes around the unfolding pulley 51 and is fixed at the end part of the third section arm 3.
The transversely-spreading oil cylinder group 4 is arranged on the inner side of the box-type telescopic arm, the spreading pulley 51 is fixed at the end part of the oil cylinder body 42, the spreading pulley 51 is prevented from being arranged between two sections of arms, the size of the adjacent arm frame is reduced, the weight of the synchronous spreading mechanism of the telescopic arm is reduced, the space is saved, and the structure is more compact.
Preferably, the second arm segment 2 is nested on the first arm segment 1, and a gap of 0.1mm is left between the first roller 12 on the first arm segment 1 and the first guide rail 23 of the second arm segment 2, so that the second arm segment 2 can roll smoothly inside the first arm segment 1 during operation.
Preferably, the third knuckle arm 3 is nested on the second knuckle arm 2, and a gap of 0.1mm is left between the second roller 22 on the second knuckle arm 2 and the second guide rail 32 of the third knuckle arm 3, so that the third knuckle arm 3 can roll smoothly inside the second knuckle arm 2 in the working process.
The box type telescopic boom is characterized in that rollers and guide rails are arranged between the sections of the boom, reasonable gaps are arranged between the rollers and the guide rails correspondingly, friction force of relative motion between the sections of the boom is greatly reduced, and the blocking phenomenon caused by manufacturing size deviation of the boom sections can be effectively avoided.
The combined slide rail 7 comprises a first-stage slide rail 71, a second-stage slide rail 72 and a third-stage slide rail 73; the first-stage slide rail 71 is integrally fixed on the first fixing seat 13; one end of the second-stage slide rail 72 is fixed on the second fixing seat 24, and the bottom of the second-stage slide rail is correspondingly arranged in the slide guide groove of the first slide seat 14; one end of the third-stage slide rail 73 is fixed on the third fixing seat 33, and the bottom of the third-stage slide rail is correspondingly arranged in the slide guide grooves of the first slide seat 14 and the second slide seat 25. When the second-stage arm 2 moves relatively to the first-stage arm 1, the second-stage slide rail 72 slides in the slide guide groove of the first slide 14; when the third link arm 3 moves relatively to the second link arm 2, the third-stage slide rail 73 slides in the slide guide grooves of the first slide 14 and the second slide 25.
Preferably, the square slider 8 is fixed on the antenna framework, and the square slider 8 is arranged on a circular shaft guide rail in the combined slide rail 7; when the telescopic arm type antenna unfolding mechanism is unfolded or folded, the first section arm 1, the second section arm 2 and the third section arm 3 move relatively, and the square sliding block 8 follows along with the position change of the combined sliding rail 7, so that the antenna framework is unfolded or folded finally.
As shown in fig. 7 and 8, fig. 7 is a drawing illustrating a structure of a telescopic arm type synchronous unfolding mechanism according to the present invention in a folded state; FIG. 8 is a structural view of the extendable arm type synchronous extending mechanism according to the present invention in an extended state; the specific working process of the telescopic arm type synchronous unfolding mechanism is as follows:
the unfolding process specifically comprises the following steps: hydraulic oil enters the cylinder body 42 from the cylinder piston rod 41, so that the cylinder piston rod 41 is pushed out and extended from the cylinder body 42, and the second joint arm 2 is driven to be unfolded. Because the two ends of the unfolding steel wire rope 53 are respectively fixed at the end parts of the first section arm 1 and the third section arm 3, and the middle part of the unfolding steel wire rope 53 is provided with the unfolding pulley 51; the cylinder piston rod 41 extends to enable the part of the unfolding steel wire rope 53 between the unfolding pulley 51 and the fixed end of the first section arm 1 to grow, and under the condition that the length of the unfolding steel wire rope 53 is fixed, the part of the unfolding steel wire rope 53 between the unfolding pulley 51 and the fixed end of the third section arm 3 is shortened, so that the third section arm 3 is driven to synchronously unfold for the same distance.
The folding process specifically comprises the following steps: the second joint arm 2 is driven to fold along with the retraction of the cylinder piston rod 41 from the cylinder body 42. Because the two ends of the reset steel wire rope 63 are respectively fixed at the end parts of the first section arm 1 and the third section arm 3, and the reset pulley 61 is arranged in the middle of the reset steel wire rope 63; the cylinder piston rod 41 contracts to enable the part of the reset steel wire rope 63 between the reset pulley 61 and the fixed end of the first section arm 1 to grow, and under the condition that the length of the reset steel wire rope 63 is fixed, the part of the reset steel wire rope 63 between the unfolding pulley 51 and the fixed end of the third section arm 3 is shortened, so that the third section arm 3 is driven to be synchronously folded for the same distance.
In the process of unfolding and folding, the square sliding block 8 slides on the combined sliding rail 7 along with the unfolding and folding of the second section arm 2 and the third section arm 3.
The foregoing is merely a preferred embodiment of the invention, which is intended to be illustrative and not limiting. It will be understood by those skilled in the art that various changes, modifications and equivalents may be made therein without departing from the spirit and scope of the invention as defined in the appended claims.
Claims (7)
1. A telescopic arm type antenna deployment mechanism, comprising:
the box-type telescopic arm is an integral framework of the telescopic arm type antenna unfolding mechanism and comprises a plurality of jointed arms which are mutually sleeved;
the transverse expansion oil cylinder group is arranged in the box-type telescopic arm and provides linear driving force for the telescopic arm type antenna expansion mechanism;
the pulley transmission device is used for realizing the unfolding and folding actions of the box-type telescopic arm, is fixed in the box-type telescopic arm and is arranged corresponding to the transverse oil cylinder group;
the combined slide rail is arranged on the outer side of the wall surface of the box-type telescopic boom, and is provided with a square slide block which is connected with the antenna framework and used for realizing the synchronous expansion of the antenna framework;
the box-type telescopic arm comprises a first section arm, a second section arm and a third section arm; the second section arm is sleeved in the first section arm, the third section arm is sleeved in the second section arm, and the transverse expansion oil cylinder group comprises an oil cylinder piston rod and an oil cylinder body; the end part of the piston rod of the oil cylinder is fixed at the end part of the first knuckle arm, and the cylinder body of the oil cylinder is fixed at the end part of the second knuckle arm close to the first knuckle arm;
the first knuckle arm comprises a first knuckle arm body and a first roller; the first roller is arranged on the inner side of the first arm body; the second knuckle arm comprises a second knuckle arm body, a second roller and a first guide rail; the first guide rail is arranged on the outer arm surface of the second arm body; the first guide rail and the first roller are correspondingly arranged; the second roller is arranged on the inner side of the second arm body; the third section of arm comprises a third section of arm body, a second guide rail and a third fixed seat; the second guide rail is arranged on the outer arm surface of the third arm body; the second guide rail and the second roller are correspondingly arranged;
the first section arm also comprises a first fixed seat and a first sliding seat; the first fixed seat and the first sliding seat are respectively fixed on the upper end surface of the first arm section body; the second section arm also comprises a second fixed seat and a second sliding seat; the second fixed seat and the second sliding seat are respectively fixed on the upper side of the end part of the second knuckle arm body; the third section arm also comprises a third fixed seat; the third fixing seat is fixed on the upper side of the end part of the third knuckle arm body; the combined slide rail comprises a first-stage slide rail, a second-stage slide rail and a third-stage slide rail; the first-stage slide rail is integrally fixed on the first fixed seat; one end of the second-stage sliding rail is fixed on the second fixed seat, and the bottom of the second-stage sliding rail is correspondingly arranged in the sliding guide groove of the first sliding seat; and one end of the third-stage sliding rail is fixed on the third fixing seat, and the bottom of the third-stage sliding rail is correspondingly arranged in the sliding guide grooves of the first sliding seat and the second sliding seat.
2. The retractable-arm antenna deployment mechanism of claim 1, wherein the pulley drive comprises a deployment pulley block, a reset pulley block; the reset pulley block is arranged on the left side surface and the right side surface of the end part of the second section arm; the unfolding pulley block is arranged at the end position of the transverse unfolding cylinder group in the third section of arm, the transverse unfolding cylinder group is used for realizing the unfolding operation of the telescopic arm type antenna unfolding mechanism through the unfolding pulley block, and the folding operation of the telescopic arm type antenna unfolding mechanism is realized through the resetting pulley block.
3. The telescoping arm antenna deployment mechanism of claim 2, wherein the reset pulley block comprises a reset pulley shaft, a reset pulley, and a reset wire rope; the reset pulleys are arranged at the end part of the second section arm close to the first section arm in an axial symmetry manner, and the reset pulleys are arranged on the reset pulley shafts; one end of the reset steel wire rope is fixed at the end part of the first section arm, and the other end of the reset steel wire rope bypasses the reset pulley and is fixed at the end part of the third section arm.
4. The telescopic-arm antenna deployment mechanism of claim 2, wherein the deployment pulley block comprises a deployment pulley shaft mounted at an end of the cylinder block within the third boom body, a deployment pulley mounted on the deployment pulley shaft, and a deployment wire rope; one end of the unfolding steel wire rope is fixed at the end part of the first section arm, and the other end of the unfolding steel wire rope bypasses the unfolding pulley and is fixed at the end part of the third section arm.
5. The retractable arm antenna deployment mechanism of claim 1, wherein the transverse deployment cylinder assembly further comprises a support wheel mounted at an end of the cylinder block and in contact with an inner arm surface of the third arm.
6. The retractable-arm antenna deployment mechanism of claim 1, wherein a gap of 0.1mm is left between the first roller and the first rail, and a gap of 0.1mm is left between the second roller and the second rail.
7. The extending arm type antenna deployment mechanism according to claim 1, wherein the first arm section, the second arm section, and the third arm section are formed by butt-welding two U-shaped bent steel plates.
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| CN201910101818.5A CN109659662B (en) | 2019-01-28 | 2019-01-28 | Telescopic arm type antenna unfolding mechanism |
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| CN201910101818.5A CN109659662B (en) | 2019-01-28 | 2019-01-28 | Telescopic arm type antenna unfolding mechanism |
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| CN109659662B true CN109659662B (en) | 2020-05-15 |
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| CN112599952B (en) * | 2021-03-08 | 2021-05-11 | 南京工业职业技术大学 | Outdoor integral type signal tower |
| CN113219261B (en) * | 2021-03-29 | 2022-06-24 | 西安电子科技大学 | Modular deployable antenna ground deployment test system, control method and application |
| CN112968263B (en) * | 2021-04-01 | 2022-11-04 | 中国船舶重工集团公司第七二三研究所 | Portable reconnaissance antenna rapid unfolding positioning and resetting device and method thereof |
| CN113173518A (en) * | 2021-05-19 | 2021-07-27 | 山东华樱轨道装备有限公司 | Car lifting jack for truck body |
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| CN103427152B (en) * | 2013-05-15 | 2016-02-17 | 贵州泰格科技有限责任公司 | A kind of resonant antenna of adjustable electric sensibility reciprocal |
| CN103498843B (en) * | 2013-09-25 | 2016-08-31 | 北京航空航天大学 | One can stretchable sleeve device and measuring and control method thereof |
| US9739048B2 (en) * | 2015-11-18 | 2017-08-22 | Jorge Cueto | Telescopic structural systems and construction method |
| CN108400421B (en) * | 2018-02-01 | 2020-05-01 | 西北工业大学 | Three-layer flexible sleeve deployable antenna |
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