CN213483952U

CN213483952U - Antenna device of lying upside down

Info

Publication number: CN213483952U
Application number: CN202022918934.7U
Authority: CN
Inventors: 孙宏; 周浩; 陈少恒
Original assignee: Nanjing Changfeng Space Electronics Technology Co Ltd
Current assignee: Nanjing Changfeng Space Electronics Technology Co Ltd
Priority date: 2020-12-08
Filing date: 2020-12-08
Publication date: 2021-06-18
Anticipated expiration: 2030-12-08

Abstract

The utility model discloses an antenna device of lying upside down of antenna technical field has the structure and stabilizes, and bearing capacity is big, characteristics such as rationally distributed. The hydraulic support comprises a hydraulic driving mechanism, a long shaft, a support and an auxiliary shaft, wherein one end of the long shaft is fixedly connected with the hydraulic driving mechanism, the other end of the long shaft is fixedly connected with a first side wall of the support, one end of the auxiliary shaft is fixedly connected with a second side wall of the support, and the axis of the long shaft is superposed with the axis of the auxiliary shaft; the first side wall, the second side wall, the first bottom plate, the second bottom plate, the first supporting plate and the second supporting plate are enclosed to form a cuboid structure, a first rib plate and a second rib plate are symmetrically arranged between the first bottom plate and the second bottom plate, a first boss is arranged on the first side wall, a first through hole matched with the long shaft is formed in the first boss, a second boss is arranged on the second side wall, and a second through hole matched with the auxiliary shaft is formed in the second boss; rectangular operation holes are formed in the first side wall, the second side wall and the second bottom plate, and circular mounting holes are formed in the first bottom plate.

Description

Antenna device of lying upside down

Technical Field

The utility model belongs to the technical field of the antenna, concretely relates to antenna device of lying upside down.

Background

With the increasing development of military technology, the maneuverability of large-scale array surface equipment becomes an important index for system design. For a quick-release and antenna-lifting system with a large load front, this is a key factor affecting the mobility of the device. The large array surface equipment is large in size, heavy in weight and easy to be ultrahigh during vehicle-mounted transportation, and an inverted horizontal device is required to be adopted to reduce the height of the array surface; the traditional electromechanical lifting mechanism is complex in design, high in mechanism linkage requirement, easy to clamp, low in bearing capacity and difficult to maintain, and the frame is easy to deform due to vehicle vibration in the transportation process, so that the use of equipment is greatly influenced.

SUMMERY OF THE UTILITY MODEL

For solving the not enough among the prior art, the utility model provides an antenna device of lying upside down has the structure and stabilizes, and bearing capacity is big, characteristics such as rationally distributed.

In order to achieve the above purpose, the utility model adopts the technical proposal that: an antenna reclining device comprises a hydraulic driving mechanism, a long shaft, a support and an auxiliary shaft, wherein a first bearing seat is installed on the long shaft, a second bearing seat is installed on the auxiliary shaft, one end of the long shaft is fixedly connected with the hydraulic driving mechanism, the other end of the long shaft is fixedly connected with a first side wall of the support, one end of the auxiliary shaft is fixedly connected with a second side wall of the support, and the axis of the long shaft is overlapped with the axis of the auxiliary shaft; the first side wall and the second side wall are respectively and fixedly connected with a first bottom plate, a second bottom plate, a first supporting plate and a second supporting plate, the first side wall, the second side wall, the first bottom plate, the second bottom plate, the first supporting plate and the second supporting plate are enclosed into a rectangular structure, a first rib plate and a second rib plate are symmetrically arranged between the first bottom plate and the second bottom plate, the first rib plate is respectively and fixedly connected with the first bottom plate, the second bottom plate and the first supporting plate, and the second rib plate is respectively and fixedly connected with the first bottom plate, the second bottom plate and the second supporting plate; a first boss is arranged on the first side wall, a first through hole matched with the long shaft is formed in the first boss, a second boss is arranged on the second side wall, and a second through hole matched with the auxiliary shaft is formed in the second boss; rectangular operation holes are formed in the first side wall, the second side wall and the second bottom plate, and circular mounting holes are formed in the first bottom plate.

Further, the first boss and the second boss face the inside of the cuboid structure.

Furthermore, the first rib plate and the second rib plate are both in a right-angled trapezoid shape.

Furthermore, the auxiliary shaft is a hollow shaft, a second mounting flange is arranged on the auxiliary shaft, a second square boss is arranged on the second mounting flange, and a second square groove matched with the second square boss is arranged on the second through hole; the long shaft is provided with a first mounting flange, the first mounting flange is provided with a first square boss, and the first through hole is provided with a first square groove matched with the first square boss.

Further, the hydraulic driving mechanism comprises a first telescopic cylinder, a second telescopic cylinder, a third telescopic cylinder, a fourth telescopic cylinder, a first rack, a second rack and a driving gear, two ends of the first rack are respectively hinged to a piston rod of the first telescopic cylinder and a piston rod of the second telescopic cylinder, two ends of the second rack are respectively hinged to a piston rod of the third telescopic cylinder and a piston rod of the fourth telescopic cylinder, the first rack and the second rack are located at two ends of the driving gear and are respectively meshed with the driving gear, and the driving gear is fixedly connected with the long shaft.

Furthermore, a first oil cavity of the first telescopic cylinder, a first oil cavity of the second telescopic cylinder, a second oil cavity of the third telescopic cylinder and a second oil cavity of the fourth telescopic cylinder are respectively communicated with a first oil way, and a first cut-off valve is arranged on the first oil way; the second oil cavity of the first telescopic cylinder, the second oil cavity of the second telescopic cylinder, the first oil cavity of the third telescopic cylinder and the first oil cavity of the fourth telescopic cylinder are respectively communicated with a second oil way, and a second cut-off valve is arranged on the second oil way.

Compared with the prior art, the utility model discloses the beneficial effect who reaches:

(1) the utility model discloses a hydraulic drive mechanism drive support to design the support as hollow cuboid mechanism, rationally set up structures such as gusset, handle hole, mounting hole, improved the whole rigidity and the bearing capacity of support, make the support non-deformable, can hold auxiliary assembly facilities such as working cable in the cavity of support simultaneously, the whole compact structure, rationally distributed, satisfy the whole car transportation requirement of radar;

(2) the utility model discloses an adopt hydraulic drive, can improve the drive power to the antenna on the one hand, on the other hand can fix the antenna at predetermined angle through the flow of control hydraulic oil, has improved the adaptability of radar to the environment in the course of the work.

Drawings

Fig. 1 is a schematic perspective view of an antenna reclining device according to an embodiment of the present invention;

fig. 2 is a top view of an antenna reclining device according to an embodiment of the present invention, when operating in a 90-degree position;

fig. 3 is a schematic plan view of a support of an antenna reclining device according to an embodiment of the present invention;

FIG. 4 is a cross-sectional view A-A of FIG. 3;

FIG. 5 is a left side view of FIG. 3;

FIG. 6 is a cross-sectional view B-B of FIG. 5;

FIG. 7 is a cross-sectional view C-C of FIG. 3;

FIG. 8 is a rear view of FIG. 3;

fig. 9 is a cross-sectional view of an auxiliary shaft of an antenna reclining device according to an embodiment of the present invention;

FIG. 10 is a left side view of FIG. 9;

fig. 11 is a schematic perspective view of an antenna reclining device according to an embodiment of the present invention in a use state;

fig. 12 is a schematic perspective view of a antenna reclining device according to an embodiment of the present invention in a use state;

fig. 13 is a schematic three-dimensional structure diagram of an antenna reclining device provided in an embodiment of the present invention in a use state;

fig. 14 is a schematic diagram of a hydraulic driving mechanism of an antenna reclining device according to an embodiment of the present invention.

Detailed Description

The present invention will be further described with reference to the accompanying drawings. The following examples are only for illustrating the technical solutions of the present invention more clearly, and the protection scope of the present invention is not limited thereby.

As shown in fig. 1 to 14, an antenna reclining device includes a hydraulic driving mechanism 1, a long shaft 2, a support 3 and an auxiliary shaft 4, wherein the long shaft 2 is provided with a first bearing seat 5, the auxiliary shaft 4 is provided with a second bearing seat 6, one end of the long shaft 2 is fixedly connected with the hydraulic driving mechanism 1, the other end of the long shaft is fixedly connected with a first side wall 31 of the support 3, one end of the auxiliary shaft 4 is fixedly connected with a second side wall 32 of the support 3, and the axis of the long shaft 2 coincides with the axis of the auxiliary shaft 4; the first side wall 31 and the second side wall 32 are respectively fixedly connected with a first bottom plate 33, a second bottom plate 34, a first supporting plate 35 and a second supporting plate 36, the first side wall 31, the second side wall 32, the first bottom plate 33, the second bottom plate 34, the first supporting plate 35 and the second supporting plate 36 enclose a cuboid structure, all components of the cuboid structure are respectively welded and connected to support each other, the strength and the bearing capacity of the support are enhanced, meanwhile, a first rib plate 37 and a second rib plate 38 are symmetrically arranged between the first bottom plate 33 and the second bottom plate 34, the first rib plate 37 is respectively welded and fixed with the first bottom plate 33, the second bottom plate 34 and the first supporting plate 35, the second rib plate 38 is respectively welded and fixed with the first bottom plate 33, the second bottom plate 34 and the second supporting plate 36, the first rib plate 37 and the second rib plate 38 are used for further enhancing the deformation resistance of the first bottom plate 33 and the second bottom plate 34, the integral strength of the support 3 is further enhanced; the first side wall 31 is provided with a first boss 311, the first boss 311 is provided with a first through hole 312 matched with the long shaft 2, the second side wall 32 is provided with a second boss 321, the second boss 321 is provided with a second through hole 322 matched with the auxiliary shaft 4, and the first boss 311 and the second boss 321 are used for enhancing the strength of the first side wall 31 and the second side wall 32 so as to support the support 3, the radar antenna installed on the support 3 and the like; rectangular operation holes 301 are formed in the first side wall 31, the second side wall 32 and the second bottom plate 34, circular mounting holes 302 are formed in the first bottom plate 33, and the positions and the sizes of the operation holes 301 are reasonably set, so that on one hand, the radar antenna and accessory parts thereof can be conveniently overhauled, on the other hand, the stress of the support 3 can be eliminated, and the stability of the support 3 is improved; the mounting hole 302 is used for mounting a radar antenna, which is fixed to the first base plate 33 by a bolt.

In this embodiment, the first boss 311 and the second boss 321 both face the inside of the rectangular parallelepiped structure, so as to further reduce the overall structural size, and make the structure of the support 3 simpler. The first rib plate 37 and the second rib plate 38 are both in a right trapezoid shape, and the installation requirement is met on the premise that the strength is ensured. The auxiliary shaft 4 is a hollow shaft and has higher bearing capacity, a second mounting flange 41 is arranged on the auxiliary shaft 4, a second square boss 42 is arranged on the second mounting flange 41, and a second square groove 323 matched with the second square boss 42 is arranged on the second through hole 322; a first mounting flange is arranged on the long shaft 2, a first square boss is arranged on the first mounting flange, and a first square groove 313 matched with the first square boss is arranged on the first through hole 312; major axis 2 and auxiliary shaft 4 adopt the same connected mode to pass through bolted connection with support 3, simultaneously through setting up the first square boss and the first square groove 313 of mutual matching, the square boss 42 of second and the square groove 323 of second, can effectively guarantee that major axis 2 drives support 3, support 3 and the synchronous pivoted effect of major axis 2 prevent to take place the phenomenon of skidding when using for a long time to reduce the transmission precision. The long shaft and the auxiliary shaft are bridges for transmitting torque between the hydraulic driving mechanism and the support; the long shaft and the auxiliary shaft are fixedly connected with the support through a first mounting flange and a second mounting flange respectively, and the long shaft is in key connection with the hydraulic driving mechanism; the first bearing seat and the second bearing seat are shafting supporting pieces and are arranged on the transport vehicle.

In the embodiment, the support is driven by the hydraulic driving mechanism, is designed into a hollow cuboid mechanism, and is reasonably provided with the structures such as the rib plate, the operation hole and the mounting hole, so that the overall rigidity and the bearing capacity of the support are improved, the support is not easy to deform, meanwhile, auxiliary equipment facilities such as working cables and the like can be accommodated in the cavity of the support, the overall structure is compact, the layout is reasonable, and the transportation requirement of the whole radar vehicle is met; by adopting hydraulic driving, on one hand, the driving force for the antenna can be improved, on the other hand, the antenna can be fixed at a preset angle by controlling the flow of hydraulic oil, and the adaptability of the radar to the environment in the working process is improved.

As shown in fig. 14, in this embodiment, the hydraulic driving mechanism includes a first telescopic cylinder 11, a second telescopic cylinder 12, a third telescopic cylinder 13, a fourth telescopic cylinder 14, a first rack 15, a second rack 16 and a driving gear 17, two ends of the first rack 15 are respectively hinged to a piston rod of the first telescopic cylinder 11 and a piston rod of the second telescopic cylinder 12, two ends of the second rack 16 are respectively hinged to a piston rod of the third telescopic cylinder 13 and a piston rod of the fourth telescopic cylinder 14, the first rack 15 and the second rack 16 are located at two ends of the driving gear 17 and respectively engaged with the driving gear 17, and the driving gear 17 is fixedly connected to the long shaft 2. The first oil cavity 111 of the first telescopic cylinder, the first oil cavity 121 of the second telescopic cylinder, the second oil cavity 132 of the third telescopic cylinder and the second oil cavity 142 of the fourth telescopic cylinder are respectively communicated with the first oil way 18, and a first cut-off valve 181 is arranged on the first oil way 18; the second oil chamber 112 of the first telescopic cylinder, the second oil chamber 122 of the second telescopic cylinder, the first oil chamber 131 of the third telescopic cylinder and the first oil chamber 141 of the fourth telescopic cylinder are respectively communicated with the second oil path 19, and a second cut-off valve 191 is arranged on the second oil path 19. The hydraulic driving mechanism is compact in structure and reasonable in layout, the requirements of the whole radar vehicle for road and railway transportation are met, the support 3 is driven by connecting the driving gear 17 with the long shaft 2, the rotation angle of the driving gear is in direct proportion to the movement stroke of the rack, so that the support can be turned over at any angle within the range of 0-90 degrees, the antenna device is laid down on a vehicle chassis for transportation at 0 degrees (as shown in figure 11), and the antenna device is erected at 90 degrees (as shown in figure 12). In the embodiment, the maximum pressure of the hydraulic driving mechanism is 16MPa, the maximum torque is 18000NM, the output torque can be automatically adjusted along with the load change, and the stability and reliability during overturning are guaranteed; the first cut-off valve 181 and the second cut-off valve 191 can automatically close the oil circuit when the power is cut off suddenly, and at the moment, the equipment can be locked at the current position and cannot fall off, so that personal safety and equipment safety are guaranteed. And the manual mode can be switched to complete subsequent work in the power-off state. By installing the inclination angle sensor, the rotation angle (as shown in fig. 13, the state of an inclination angle of 45 degrees) can be accurately controlled, and the maximum rotation angle error is not more than 3 minutes; at the same time, the limit switch prevents the support from overshooting when the movement is terminated.

The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of modifications and variations can be made without departing from the technical principle of the present invention, and these modifications and variations should also be considered as the protection scope of the present invention.

Claims

1. An antenna reclining device is characterized by comprising a hydraulic driving mechanism, a long shaft, a support and an auxiliary shaft, wherein a first bearing seat is installed on the long shaft, a second bearing seat is installed on the auxiliary shaft, one end of the long shaft is fixedly connected with the hydraulic driving mechanism, the other end of the long shaft is fixedly connected with a first side wall of the support, one end of the auxiliary shaft is fixedly connected with a second side wall of the support, and the axis of the long shaft is superposed with the axis of the auxiliary shaft;

the first side wall and the second side wall are respectively and fixedly connected with a first bottom plate, a second bottom plate, a first supporting plate and a second supporting plate, the first side wall, the second side wall, the first bottom plate, the second bottom plate, the first supporting plate and the second supporting plate are enclosed into a rectangular structure, a first rib plate and a second rib plate are symmetrically arranged between the first bottom plate and the second bottom plate, the first rib plate is respectively and fixedly connected with the first bottom plate, the second bottom plate and the first supporting plate, and the second rib plate is respectively and fixedly connected with the first bottom plate, the second bottom plate and the second supporting plate; a first boss is arranged on the first side wall, a first through hole matched with the long shaft is formed in the first boss, a second boss is arranged on the second side wall, and a second through hole matched with the auxiliary shaft is formed in the second boss; rectangular operation holes are formed in the first side wall, the second side wall and the second bottom plate, and circular mounting holes are formed in the first bottom plate.

2. The antenna reclining device according to claim 1, wherein the first boss and the second boss face an inside of the rectangular parallelepiped structure.

3. The antenna reclining device according to claim 1, wherein the first rib plate and the second rib plate are both in the shape of a right trapezoid.

4. The antenna reclining device according to claim 1, wherein the auxiliary shaft is a hollow shaft, a second mounting flange is arranged on the auxiliary shaft, a second square boss is arranged on the second mounting flange, and a second square groove matched with the second square boss is arranged on the second through hole; the long shaft is provided with a first mounting flange, the first mounting flange is provided with a first square boss, and the first through hole is provided with a first square groove matched with the first square boss.

5. The antenna reclining device according to claim 1, wherein the hydraulic driving mechanism comprises a first telescopic cylinder, a second telescopic cylinder, a third telescopic cylinder, a fourth telescopic cylinder, a first rack, a second rack and a driving gear, two ends of the first rack are respectively hinged to a piston rod of the first telescopic cylinder and a piston rod of the second telescopic cylinder, two ends of the second rack are respectively hinged to a piston rod of the third telescopic cylinder and a piston rod of the fourth telescopic cylinder, the first rack and the second rack are located at two ends of the driving gear and are respectively meshed with the driving gear, and the driving gear is fixedly connected with the long shaft.

6. The antenna reclining device according to claim 5, wherein the first oil chamber of the first telescopic cylinder, the first oil chamber of the second telescopic cylinder, the second oil chamber of the third telescopic cylinder and the second oil chamber of the fourth telescopic cylinder are respectively communicated with a first oil path, and a first cut-off valve is arranged on the first oil path; the second oil cavity of the first telescopic cylinder, the second oil cavity of the second telescopic cylinder, the first oil cavity of the third telescopic cylinder and the first oil cavity of the fourth telescopic cylinder are respectively communicated with a second oil way, and a second cut-off valve is arranged on the second oil way.