CN110970702A - Radar antenna heavy-load multisection synchronous servo elevator - Google Patents

Radar antenna heavy-load multisection synchronous servo elevator Download PDF

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Publication number
CN110970702A
CN110970702A CN201911014433.1A CN201911014433A CN110970702A CN 110970702 A CN110970702 A CN 110970702A CN 201911014433 A CN201911014433 A CN 201911014433A CN 110970702 A CN110970702 A CN 110970702A
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CN
China
Prior art keywords
level lifting
lifting
barrel
level
grade
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Pending
Application number
CN201911014433.1A
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Chinese (zh)
Inventor
杜小辉
张辉
辛猛
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Nanjing Jikai Microwave Technology Co ltd
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Nanjing Jikai Microwave Technology Co ltd
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Priority to CN201911014433.1A priority Critical patent/CN110970702A/en
Publication of CN110970702A publication Critical patent/CN110970702A/en
Pending legal-status Critical Current

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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00—Details of, or arrangements associated with, antennas
    • H01Q1/12—Supports; Mounting means
    • H01Q1/1235—Collapsible supports; Means for erecting a rigid antenna
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66F—HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
    • B66F3/00—Devices, e.g. jacks, adapted for uninterrupted lifting of loads
    • B66F3/08—Devices, e.g. jacks, adapted for uninterrupted lifting of loads screw operated
    • B66F3/10—Devices, e.g. jacks, adapted for uninterrupted lifting of loads screw operated with telescopic sleeves
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H25/00—Gearings comprising primarily only cams, cam-followers and screw-and-nut mechanisms
    • F16H25/18—Gearings comprising primarily only cams, cam-followers and screw-and-nut mechanisms for conveying or interconverting oscillating or reciprocating motions
    • F16H25/20—Screw mechanisms
    • F16H25/2056—Telescopic screws with at least three screw members in coaxial arrangement
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H25/00—Gearings comprising primarily only cams, cam-followers and screw-and-nut mechanisms
    • F16H25/18—Gearings comprising primarily only cams, cam-followers and screw-and-nut mechanisms for conveying or interconverting oscillating or reciprocating motions
    • F16H25/20—Screw mechanisms
    • F16H25/24—Elements essential to such mechanisms, e.g. screws, nuts
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H25/00—Gearings comprising primarily only cams, cam-followers and screw-and-nut mechanisms
    • F16H25/18—Gearings comprising primarily only cams, cam-followers and screw-and-nut mechanisms for conveying or interconverting oscillating or reciprocating motions
    • F16H25/20—Screw mechanisms
    • F16H2025/204—Axial sliding means, i.e. for rotary support and axial guiding of nut or screw shaft
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H25/00—Gearings comprising primarily only cams, cam-followers and screw-and-nut mechanisms
    • F16H25/18—Gearings comprising primarily only cams, cam-followers and screw-and-nut mechanisms for conveying or interconverting oscillating or reciprocating motions
    • F16H25/20—Screw mechanisms
    • F16H2025/2062—Arrangements for driving the actuator
    • F16H2025/2081—Parallel arrangement of drive motor to screw axis
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H25/00—Gearings comprising primarily only cams, cam-followers and screw-and-nut mechanisms
    • F16H25/18—Gearings comprising primarily only cams, cam-followers and screw-and-nut mechanisms for conveying or interconverting oscillating or reciprocating motions
    • F16H25/20—Screw mechanisms
    • F16H2025/2062—Arrangements for driving the actuator
    • F16H2025/2096—Arrangements for driving the actuator using endless flexible members

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Structural Engineering (AREA)
  • Variable-Direction Aerials And Aerial Arrays (AREA)

Abstract

The invention discloses a radar antenna heavy-load multisection synchronous servo elevator, wherein an n-2-grade lifting wire tube is coaxially sleeved in an n-1-grade lifting wire tube, the outer side wall of the n-2-grade lifting wire tube is provided with an n-1-grade lifting sliding groove along the axial direction, the inner side wall of the bottom of the n-1-grade lifting wire tube is provided with an n-1-grade lifting sliding tooth which is adaptive to be clamped in the n-1-grade lifting sliding groove to slide, an n-grade lifting barrel end cover is coaxially fixed at the top end of an n-grade lifting barrel, the inner side wall of the n-1-grade lifting barrel end cover is uniformly provided with more than three n-grade lifting guide grooves along the axial direction, and the outer side wall of the n-grade lifting barrel is uniformly provided with more than three n-grade lifting guide strips along the axial direction and is adaptive to the n-grade lifting guide grooves on the n-1-grade lifting barrel end cover; the multi-section synchronous lifting device has the advantages that the sliding grooves and the sliding grooves on the adjacent lifting wire tubes which are coaxially sleeved are adopted, and the guide strips and the guide grooves on the lifting barrels which are coaxially sleeved and the adjacent end covers of the lifting barrels are combined, so that the multi-section synchronous lifting device is jointly realized, the structure is simple, the size is small, the load bearing torsion is strong, and the stability is good.

Description

Radar antenna heavy-load multisection synchronous servo elevator
Technical Field
The invention relates to the field of heavy-load (over 800Kg) mechanical equipment for lifting a phased array radar antenna, in particular to a radar antenna heavy-load multisection synchronous servo lifter.
Background
The structure of the array system of the phased array radar antenna is generally a box type structure, as shown in fig. 1, fig. 1 is a reduced front view of the phased array radar antenna array system and the lifting mechanism thereof in the prior art, the sum of the weights of the X antenna 500 and the S antenna 400 is 760Kg, the sum of the weights of the antenna support frame 300 is 550Kg, the sum of the weights of the servo rotating platform 200 is 50Kg, and the design reference total weight of the lifter 100 is 1632Kg in consideration of 20% safety load margin of the increased load of the lifter caused by 8-level wind pressure; the elevator 100 has an initial height 1950mm and a lift height in the field operating state of greater than 5000 mm.
However, the load of the mechanical equipment using the lifting phased array radar antenna in the prior art is generally about 500Kg, and according to the design of the conventional multi-section servo synchronous lifting rod, the number of screw rods is large, the size of the lifting rod is large, the mechanical layout is complex, the load bearing torque force is weak, and if the load exceeds 800Kg, the strength is insufficient due to the weight, and the stability is poor.
Therefore, there is still a need for improvement and development of the prior art.
Disclosure of Invention
In order to solve the technical problems, the invention provides a radar antenna heavy-load multisection synchronous servo elevator which is simple in structure, small in size, strong in load-bearing torsion and good in stability.
The technical scheme of the invention is as follows: a radar antenna heavy-load multi-section synchronous servo elevator comprises: the lifting device comprises a base screw rod, a base fixing barrel end cover, 1, 2, 3, … …, n-1 level lifting screw pipes, 1, 2, 3, … …, n level lifting barrels, 1, 2, 3, … …, n level lifting flange nuts and 1, 2, 3, … … and n-1 level lifting barrel end covers, wherein n is a natural number and is not less than 4;
the 1-level lifting barrel is coaxially sleeved inside the base fixing barrel, the 2-level lifting barrel is coaxially sleeved inside the 1-level lifting barrel, the 3-level lifting barrel is coaxially sleeved inside the 2-level lifting barrel, and … …, the n-level lifting barrel is coaxially sleeved inside the n-1-level lifting barrel;
the 1-level lifting flange nut is coaxially embedded and fixed at the center of the bottom of the 1-level lifting barrel, the 2-level lifting flange nut is coaxially embedded and fixed at the center of the bottom of the 2-level lifting barrel, the 3-level lifting flange nut is coaxially embedded and fixed at the center of the bottom of the 3-level lifting barrel, … …, and the n-level lifting flange nut is coaxially embedded and fixed at the center of the bottom of the n-level lifting barrel;
the 1-level lifting flange nut is matched with the base screw rod, the 2-level lifting flange nut is matched with the 1-level lifting wire pipe, the 3-level lifting flange nut is matched with the 2-level lifting wire pipe, and … …, the n-level lifting flange nut is matched with the n-1-level lifting wire pipe;
the base screw rod is coaxially sleeved inside the 1-level lifting wire tube, the 1-level lifting wire tube is coaxially sleeved inside the 2-level lifting wire tube, the 2-level lifting wire tube is coaxially sleeved inside the 3-level lifting wire tube, and … …, the n-2-level lifting wire tube is coaxially sleeved inside the n-1-level lifting wire tube;
the bottom of the 1-level lifting wire pipe is coaxially connected to the center of the bottom of the 1-level lifting barrel through a corresponding bearing and can rotate, and the 1-level lifting wire pipe is positioned at the upper part of the 1-level lifting flange nut; the bottom of the 2-level lifting wire pipe is coaxially connected to the center of the bottom of the 2-level lifting barrel through a corresponding bearing and can rotate, and the 2-level lifting wire pipe is positioned at the upper part of the 2-level lifting flange nut; the bottom of the 3-level lifting wire pipe is coaxially connected to the center of the bottom of the 3-level lifting barrel through a corresponding bearing and can rotate, and the 3-level lifting wire pipe is positioned at the upper part of the 3-level lifting flange nut; … …, respectively; the bottom of the n-1-level lifting wire pipe is coaxially connected to the center of the bottom of the n-1-level lifting barrel through a corresponding bearing and can rotate, and the n-1-level lifting wire pipe is positioned at the upper part of the n-1-level lifting flange nut;
a 1-level lifting sliding groove is axially arranged on the outer side wall of the base screw rod, and a 1-level lifting sliding tooth which is adaptive to and clamped in the 1-level lifting sliding groove to slide is arranged on the inner side wall of the bottom of the 1-level lifting screw pipe; a 2-level lifting sliding groove is formed in the outer side wall of the 1-level lifting wire pipe along the axial direction of the 1-level lifting wire pipe, and a 2-level lifting sliding tooth which is adaptive to and clamped in the 2-level lifting sliding groove to slide is arranged on the inner side wall of the bottom of the 2-level lifting wire pipe; a 3-level lifting sliding groove is formed in the outer side wall of the 2-level lifting wire pipe along the axial direction of the 2-level lifting wire pipe, and a 3-level lifting sliding tooth which is adaptive to and clamped in the 3-level lifting sliding groove to slide is arranged on the inner side wall of the bottom of the 3-level lifting wire pipe; … …, respectively; an n-1-level lifting sliding groove is formed in the outer side wall of the n-2-level lifting wire pipe along the axial direction of the n-2-level lifting wire pipe, and an n-1-level lifting sliding tooth which is adaptive to and clamped in the n-1-level lifting sliding groove to slide is arranged on the inner side wall of the bottom of the n-1-level lifting wire pipe;
the end cover of the base fixed barrel is coaxially fixed at the top end of the base fixed barrel, the end cover of the 1-level lifting barrel is coaxially fixed at the top end of the 1-level lifting barrel, the end cover of the 2-level lifting barrel is coaxially fixed at the top end of the 2-level lifting barrel, the end cover of the 3-level lifting barrel is coaxially fixed at the top end of the 3-level lifting barrel, … …, and the end cover of the n-level lifting barrel is coaxially fixed at the top end of the n-level lifting barrel; more than three 1-level lifting guide grooves are uniformly distributed on the inner side wall of the base fixed barrel end cover along the axial direction of the base fixed barrel end cover, more than three 2-level lifting guide grooves are uniformly distributed on the inner side wall of the 1-level lifting barrel end cover along the axial direction of the base fixed barrel end cover, more than three 3-level lifting guide grooves are uniformly distributed on the inner side wall of the 2-level lifting barrel end cover along the axial direction of the 2-level lifting barrel end cover, more than three 4-level lifting guide grooves are uniformly distributed on the inner side wall of the 3-level lifting barrel end cover along the axial direction of the 3-level lifting barrel end cover, … …, and more than three n-level lifting guide grooves are uniformly distributed on the inner side wall;
correspondingly, more than three 1-level lifting guide strips are uniformly distributed on the outer side wall of the 1-level lifting barrel along the axial direction and are matched with the 1-level lifting guide grooves on the end cover of the base fixing barrel; more than three 2-level lifting guide strips are uniformly distributed on the outer side wall of the 2-level lifting barrel along the axial direction of the lifting barrel and are matched with 2-level lifting guide grooves on the end cover of the 1-level lifting barrel; more than three 3-level lifting guide strips are uniformly distributed on the outer side wall of the 3-level lifting barrel along the axial direction of the outer side wall and are matched with the 3-level lifting guide grooves on the end cover of the 2-level lifting barrel; … …, respectively; more than three n-grade lifting guide strips are uniformly distributed on the outer side wall of the n-grade lifting barrel along the axial direction of the n-grade lifting barrel and are matched with n-grade lifting guide grooves on the end cover of the n-1-grade lifting barrel.
Radar antenna heavy load multisection servo lift in step, wherein: the n-grade lifting wire pipe in the n-grade lifting assembly consists of an n-grade lifting wire pipe rod and an n-grade lifting wire pipe base, the flange end at the bottom of the n-grade lifting wire pipe rod is fixedly connected with the n-grade lifting wire pipe base through bolts and pins, the center of the outer bottom surface of the n-grade lifting barrel is provided with a flange nut stepped hole matched and embedded with the n-grade lifting flange nut, the center of the inner bottom surface of the n-grade lifting barrel is provided with a lifting wire pipe stepped hole matched and installed with the n-grade lifting wire pipe base, the lifting wire pipe stepped hole is communicated with the flange nut stepped hole, the upper end of the n-grade lifting flange nut is higher than the flange nut stepped hole and extends into the lifting wire pipe stepped hole, the lower end surface of the n-grade lifting wire pipe base is provided with a radial bearing counter bore matched and installed with a deep groove, a deep groove ball bearing is installed at the upper end of the n-grade lifting flange nut and is positioned in the radial bearing counter bore, the n-grade lifting wire pipe base is positioned in the lower, the lower end face bearing counter bore matched with and provided with the lower thrust needle roller bearing is arranged on the bottom face of the lower hole of the stepped hole of the lifting wire pipe, the upper end face bearing cover plate is arranged in the upper hole of the stepped hole of the lifting wire pipe and fixedly connected with the n-grade lifting barrel through bolts, and the upper end face of the n-grade lifting wire pipe base is provided with the upper end face bearing counter bore matched with and provided with the upper thrust needle roller bearing.
Radar antenna heavy load multisection servo lift in step, wherein: the center of the n-1-level lifting wire tube base is provided with a screw rod through hole which is matched with the n-2-level lifting wire tube to pass through, and the n-1-level lifting sliding teeth are positioned on the inner side wall of the screw rod through hole, are axially arranged along the n-1-level lifting wire tube base and are used for being clamped in the n-1-level lifting sliding grooves of the n-2-level lifting wire tube to slide up and down.
Radar antenna heavy load multisection servo lift in step, wherein: the n-1 level lifting barrel end cover is provided with a lifting barrel step hole which is matched and sleeved at the top end of the n-1 level lifting barrel, the n level lifting guide groove is positioned on the inner side wall with smaller inner diameter in the lifting barrel step hole, and correspondingly, more than three n level lifting guide strips which are uniformly distributed on the outer side wall of the n level lifting barrel along the axial direction of the n level lifting barrel are matched with the n level lifting guide grooves on the n-1 level lifting barrel end cover.
Radar antenna heavy load multisection servo lift in step, wherein: the top end cover is installed on the top end of the n-stage lifting barrel and used for installing the servo rotating platform, the antenna supporting frame is erected on the servo rotating platform, and the X antenna and the S antenna are respectively hoisted on two sides of the antenna supporting frame.
Radar antenna heavy load multisection servo lift in step, wherein: the base lead screw passes through the chain subassembly and is connected with servo speed reducer transmission, and the chain subassembly includes first sprocket, second sprocket and chain, and first sprocket is installed on the lower extreme of base lead screw, and the second sprocket is installed on servo speed reducer's output shaft, and the chain suit is on first sprocket and second sprocket.
Radar antenna heavy load multisection servo lift in step, wherein: the servo speed reducer is connected with the encoder through a synchronous belt assembly in a transmission mode, the synchronous belt assembly comprises a first synchronous belt wheel, a second synchronous belt wheel and a synchronous belt, the first synchronous belt wheel is installed on a rotating shaft of the encoder, the second synchronous belt wheel is installed on an output shaft of the servo speed reducer, and the synchronous belt is sleeved on the first synchronous belt wheel and the second synchronous belt wheel.
Radar antenna heavy load multisection servo lift in step, wherein: the servo speed reducer is characterized by further comprising a base used for mounting the servo speed reducer and the encoder, wherein a boss is arranged on the base, and the lower portion of the base fixing barrel is fixed on the boss in a sleeved mode through bolts.
Radar antenna heavy load multisection servo lift in step, wherein: the center of the boss is provided with a screw rod mounting hole which is matched with the lower end of the base screw rod and penetrates through the lower end of the base screw rod, and the screw rod mounting hole is used for being matched with an upper screw rod cover plate and a lower screw rod cover plate and corresponding bearing assemblies to mount the rotatable base screw rod.
Radar antenna heavy load multisection servo lift in step, wherein: the base screw rod adopts M60 Tr6-8g pipe threads, the 1-level lifting wire tube adopts M80 Tr6-8g pipe threads, the 2-level lifting wire tube adopts M100 Tr6-8g pipe threads, and the 3-level lifting wire tube adopts M1200 Tr6-8g pipe threads; the base screw rod and the sliding grooves on the outer side walls of the 1, 2, 3, … … and n-1 grade lifting screw pipes are 10mm wide and 6mm deep; the guide grooves on the inner side walls of the base fixed barrel end cover and the 1, 2, 3, … … and n-1 level lifting barrel end cover are 10mm wide and 4mm deep.
The radar antenna heavy-load multisection synchronous servo elevator provided by the invention has the advantages that the multisection synchronous lifting is realized together by adopting the sliding grooves and the sliding grooves on the adjacent lifting wire tubes which are coaxially sleeved and combining the lifting barrels which are coaxially sleeved and the guide strips and the guide grooves on the adjacent end covers of the lifting barrels, the structure is simple, the size is small, the load-bearing torsion is strong, and the stability is good.
Drawings
FIG. 1 is a reduced front view of a prior art phased array radar antenna array system and its lift mechanism;
FIG. 2 is a longitudinal cross-sectional view of an embodiment of a heavy duty multi-section synchronous servo lift of the present invention for a radar antenna;
FIG. 3 is an enlarged exploded view of the 1-stage lifting part of the heavy-duty multi-section synchronous servo lifter of the present invention;
FIG. 4 is an enlarged view of a longitudinal cross-section of the 1-stage lifting part of the heavy-duty multi-section synchronous servo lift of the present invention;
FIG. 5 is an enlarged exploded view of the top of the lifting bucket and its end cap for 1-stage lifting of the multi-stage synchronous servo lifter for heavy load of radar antenna according to the present invention;
FIG. 6 is an enlarged longitudinal cross-sectional view of the drive and transmission portions of the heavy duty multi-section synchronous servo lift embodiment of the radar antenna of the present invention;
FIG. 7 is an enlarged, exploded view of the drive and transmission components of the embodiment of the multiple-link synchronous servo lift for heavy duty use with a radar antenna of the present invention.
Detailed Description
The embodiments and examples of the present invention will be described in detail below with reference to the accompanying drawings, and the described embodiments are only for the purpose of illustrating the present invention and are not intended to limit the embodiments of the present invention.
As shown in fig. 2, fig. 2 is a longitudinal sectional view of an embodiment of a radar antenna heavy-duty multi-stage synchronous servo lift of the present invention, which is taken as an example of a 4-stage lifting radar antenna heavy-duty multi-stage synchronous servo lift, the radar antenna heavy-duty multi-stage synchronous servo lift includes a base lead screw 110, a base fixing barrel 120, base fixing barrel end caps 140, 1, 2, 3-stage lifting wire pipes (111, 112, 113), 1, 2, 3, 4-stage lifting barrels (121, 122, 123, 124), 1, 2, 3, 4-stage lifting flange nuts (131, 132, 133, 134), 1, 2, 3-stage lifting barrel end caps (141, 142, 143) and a top end cap 170; wherein:
the 1-stage lifting barrel 121 is coaxially sleeved inside the base fixing barrel 120, the 2-stage lifting barrel 122 is coaxially sleeved inside the 1-stage lifting barrel 121, the 3-stage lifting barrel 123 is coaxially sleeved inside the 2-stage lifting barrel 122, and the 4-stage lifting barrel 124 is coaxially sleeved inside the 3-stage lifting barrel 123;
the top end cover 170 is installed at the top end of the 4-stage lifting barrel 124 and is used for installing the servo rotating platform 200 in fig. 1, the antenna supporting frame 300 is erected on the servo rotating platform 200, and the X antenna 500 and the S antenna 400 are respectively hung on two sides of the antenna supporting frame 300;
the 1-level lifting flange nut 131 is coaxially embedded and fixed at the center of the bottom of the 1-level lifting barrel 121, the 2-level lifting flange nut 132 is coaxially embedded and fixed at the center of the bottom of the 2-level lifting barrel 122, the 3-level lifting flange nut 133 is coaxially embedded and fixed at the center of the bottom of the 3-level lifting barrel 123, and the 4-level lifting flange nut 134 is coaxially embedded and fixed at the center of the bottom of the 4-level lifting barrel 124;
the 1-level lifting flange nut 131 is matched with the base screw rod 110, the 2-level lifting flange nut 132 is matched with the 1-level lifting wire pipe 111, the 3-level lifting flange nut 133 is matched with the 2-level lifting wire pipe 112, and the 4-level lifting flange nut 134 is matched with the 3-level lifting wire pipe 113;
the base screw rod 110 is coaxially sleeved inside the 1-level lifting wire tube 111, the 1-level lifting wire tube 111 is coaxially sleeved inside the 2-level lifting wire tube 112, and the 2-level lifting wire tube 112 is coaxially sleeved inside the 3-level lifting wire tube 113;
the bottom of the 1-level lifting wire tube 111 is coaxially connected to the center of the bottom of the 1-level lifting barrel 121 through a corresponding bearing and can rotate, and the 1-level lifting wire tube 111 is positioned at the upper part of the 1-level lifting flange nut 131; the bottom of the 2-level lifting wire tube 112 is coaxially connected to the center of the bottom of the 2-level lifting barrel 122 via a corresponding bearing and can rotate, and the 2-level lifting wire tube 112 is located at the upper part of the 2-level lifting flange nut 132; the bottom of the 3-level lifting wire pipe 113 is coaxially connected to the center of the bottom of the 3-level lifting barrel 123 through a corresponding bearing and can rotate, and the 3-level lifting wire pipe 113 is positioned at the upper part of the 3-level lifting flange nut 133;
a 1-level lifting sliding groove 110a is formed in the outer side wall of the base screw rod 110 along the axial direction of the base screw rod, and a 1-level lifting sliding tooth 111b which is adaptive to and clamped in the 1-level lifting sliding groove 110a to slide is formed in the inner side wall of the bottom of the 1-level lifting screw tube 111 along the axial direction of the base screw rod; a 2-level lifting sliding groove 111a is formed in the outer side wall of the 1-level lifting wire tube 111 along the axial direction of the 1-level lifting wire tube, and a 2-level lifting sliding tooth 112b which is adaptive to and clamped in the 2-level lifting sliding groove 111a to slide is formed in the inner side wall of the bottom of the 2-level lifting wire tube 112; a 3-level lifting sliding groove 112a is formed in the outer side wall of the 2-level lifting wire tube 112 along the axial direction of the 2-level lifting wire tube, and a 3-level lifting sliding tooth 113b which is adaptive to and clamped in the 3-level lifting sliding groove 112a to slide is formed in the inner side wall of the bottom of the 3-level lifting wire tube 113;
the base fixed barrel end cover 140 is coaxially fixed at the top end of the base fixed barrel 120, the 1-level lifting barrel end cover 141 is coaxially fixed at the top end of the 1-level lifting barrel 121, the 2-level lifting barrel end cover is coaxially fixed at the top end of the 2-level lifting barrel, and the 3-level lifting barrel end cover is coaxially fixed at the top end of the 3-level lifting barrel; more than three 1-level lifting guide grooves are uniformly distributed on the inner side wall of the base fixed barrel end cover 140 along the axial direction of the inner side wall, more than three 2-level lifting guide grooves are uniformly distributed on the inner side wall of the 1-level lifting barrel end cover 141 along the axial direction of the inner side wall, more than three 3-level lifting guide grooves are uniformly distributed on the inner side wall of the 2-level lifting barrel end cover 142 along the axial direction of the inner side wall, and more than three 4-level lifting guide grooves are uniformly distributed on the inner side wall of the 3-level lifting barrel end cover 143 along the axial direction of the inner side wall;
correspondingly, more than three 1-level lifting guide strips are uniformly distributed on the outer side wall of the 1-level lifting barrel 121 along the axial direction and are matched with the 1-level lifting guide grooves on the end cover 140 of the base fixing barrel; more than three 2-level lifting guide strips are uniformly distributed on the outer side wall of the 2-level lifting barrel 122 along the axial direction of the 2-level lifting barrel and are matched with the 2-level lifting guide grooves on the 1-level lifting barrel end cover 141; more than three 3-level lifting guide strips are uniformly distributed on the outer side wall of the 3-level lifting barrel 123 along the axial direction and are matched with the 3-level lifting guide grooves on the 2-level lifting barrel end cover 142; more than three n-level lifting guide strips are uniformly distributed on the outer side wall of the 4-level lifting barrel 124 along the axial direction and are matched with the n-level lifting guide grooves on the end cover 143 of the 3-level lifting barrel.
Specifically, taking a 1-stage lifting assembly as an example, 2, 3, … …, n-stage lifting assemblies at all stages and so on, and shown in fig. 3 and 4, fig. 3 is an exploded enlarged view of the 1-stage lifting part of the radar antenna heavy-load multi-stage synchronous servo lifter of the invention, and fig. 4 is a longitudinal sectional enlarged view of the 1-stage lifting part of the radar antenna heavy-load multi-stage synchronous servo lifter of the invention; the 1-stage lifting part comprises a 1-stage lifting wire pipe 111, a 1-stage lifting barrel 121, a 1-stage lifting flange nut 131, a base screw rod 110 (not shown in figures 3 and 4), an upper end surface bearing cover plate 151, an upper thrust needle bearing 161a, a lower thrust needle bearing 161b and a deep groove ball bearing 161 c; wherein, the 1-level lifting wire tube 111 is composed of a 1-level lifting wire tube rod 111c and a 1-level lifting wire tube base 111d, the flange end at the bottom of the 1-level lifting wire tube rod 111c is fixedly connected with the 1-level lifting wire tube base 111d through bolts and pins, the center of the outer bottom surface of the 1-level lifting barrel 121 is provided with a flange nut step hole which is adapted to be embedded into the 1-level lifting flange nut 131, the center of the inner bottom surface of the 1-level lifting barrel 121 is provided with a lifting wire tube step hole which is adapted to be mounted with the 1-level lifting wire tube base 111d, the lifting wire tube step hole is communicated with the flange nut step hole, the upper end of the 1-level lifting flange nut 131 is higher than the flange nut step hole and extends into the lifting wire tube step hole, the lower end surface of the 1-level lifting wire tube base 111d is provided with a radial bearing counter bore which is adapted to be mounted with the deep groove ball bearing 161c, the deep groove ball bearing 161c is mounted at the upper end of the 1, the 1-level lifting wire tube base 111d is positioned in a lower hole of a stepped hole of a lifting wire tube, a lower end surface bearing counter bore matched with the lower thrust needle bearing 161b is arranged on the bottom surface of the lower hole of the stepped hole of the lifting wire tube, an upper end surface bearing cover plate 151 is positioned in an upper hole of the stepped hole of the lifting wire tube, the upper end surface bearing cover plate 151 is fixedly connected with the 1-level lifting barrel 121 through bolts, and an upper end surface bearing counter bore matched with the upper thrust needle bearing 161a is arranged on the upper end surface of the 1-level lifting wire tube base 111d, so that the 1-level lifting wire tube rod 111c and the 1-level lifting wire tube base 111d become rotatable parts by utilizing the upper needle bearing 161a, the lower thrust needle bearing 161b and the deep groove ball bearing 161 c.
And a 1-level lifting sliding groove 110a is axially arranged on the outer side wall of the base screw rod 110 shown in fig. 2, the 1-level lifting sliding groove 110a is similar in structure to the 1-level lifting screw tube 111 shown in fig. 3 and 4, a 2-level lifting sliding groove 111a is axially arranged on the outer side wall of the 1-level lifting screw tube 111, a screw rod through hole 111e adapted to the base screw rod 110 to penetrate is arranged at the center of the 1-level lifting screw tube base 111d, and the 1-level lifting sliding tooth 111b is located on the inner side wall of the screw rod through hole 111e and axially arranged along the 1-level lifting screw tube base 111d and is used for being clamped in the 1-level lifting sliding groove 110a of the base screw rod 110 to slide up and down, so that when the base screw rod 110 rotates, the 1-level lifting screw tube base 111d and the 1-level lifting screw tube rod 111c can be synchronously driven to rotate together through the 1-level lifting sliding tooth 111 b.
Meanwhile, in order to prevent the 1-level lifting barrel 121 and the 1-level lifting flange nut 131 from rotating together with the base screw 110, the base fixed barrel end cover 140 shown in fig. 2 is coaxially fixed at the top end of the base fixed barrel 120 by screws located on the side wall, the inner side wall of the base fixed barrel end cover 140 is uniformly distributed with more than three 1-level lifting guide grooves along the axial direction thereof, or taking a 1-level lifting assembly as an example, as shown in fig. 5, fig. 5 is an exploded enlarged view of the top of the lifting barrel and the end cover thereof used for 1-level lifting of the radar antenna heavy-duty multisection synchronous servo lifter of the present invention, and the 1-level lifting guide groove on the base fixed barrel end cover 140 is structurally similar to the inner side wall of the 1-level lifting barrel end cover 141 shown in fig. 5 and is uniformly distributed with more than three 2-level lifting guide grooves 141a along the axial direction thereof, preferably four 2-level lifting guide grooves 141a shown in fig. 5, specifically, a lifting barrel hole 141c adapted to be arranged on the top end cover, the 2-stage lifting guide grooves 141a are located on the inner side wall with the smaller inner diameter in the lifting barrel stepped hole 141c, and correspondingly, more than three 1-stage lifting guide bars 121b are uniformly distributed on the outer side wall of the 1-stage lifting barrel 121 along the axial direction of the lifting barrel and are matched with the 1-stage lifting guide grooves 141a on the base fixed barrel end cover 140 shown in fig. 2, preferably four 1-stage lifting guide bars 121b shown in fig. 5; therefore, when the base screw rod 110 rotates, the 1-level lifting guide strip 121b on the 1-level lifting barrel 121 can only slide in the 1-level lifting guide groove 141a on the base fixing barrel end cover 140 fixed on the top end of the base fixing barrel 120, so the 1-level lifting barrel 121 and the 1-level lifting flange nut 131 can only move up and down along the axial direction thereof and cannot rotate together with the base screw rod 110, but the 1-level lifting barrel 121 can drive the 1-level lifting wire pipe base 111d and the 1-level lifting wire pipe rod 111c in a rotating state to move up and down together while moving up and down along the axial direction thereof, so as to realize synchronous lifting of 2-level lifting parts, and so on, so that multi-section synchronous lifting can be realized.
For the lifter with the initial height of 1950mm, the design requirement that the lifting height exceeds 5000mm is met, and through simulation tests and comprehensive consideration of the mechanism strength during synchronous lifting, the 4-level lifting structure has better stability and can bear the lifting heavy load of more than 1600 Kg; for the design requirements of higher initial height and higher lifting height, a radar antenna which is more than 4-level lifting can be adopted to heavily load the multi-section synchronous servo lifter.
Therefore, the radar antenna heavy-load multi-section synchronous servo elevator comprises: the lifting device comprises a base screw rod 110, a base fixing barrel 120, base fixing barrel end covers 140, 1, 2, 3, … …, n-1-level lifting screw pipes, 1, 2, 3, … …, n-level lifting barrels, 1, 2, 3, … …, n-level lifting flange nuts, 1, 2, 3, … …, n-1-level lifting barrel end covers and a top end cover 170, wherein n is a natural number and is not less than 4; wherein:
the 1-level lifting barrel is coaxially sleeved inside the base fixing barrel 120, the 2-level lifting barrel is coaxially sleeved inside the 1-level lifting barrel, the 3-level lifting barrel is coaxially sleeved inside the 2-level lifting barrel, and … …, the n-level lifting barrel is coaxially sleeved inside the n-1-level lifting barrel;
the top end cover 170 is installed at the top end of the n-stage lifting barrel and is used for installing the servo rotating platform 200 in fig. 1, the antenna supporting frame 300 is erected on the servo rotating platform 200, and the X antenna 500 and the S antenna 400 are respectively hung on two sides of the antenna supporting frame 300;
the 1-level lifting flange nut is coaxially embedded and fixed at the center of the bottom of the 1-level lifting barrel, the 2-level lifting flange nut is coaxially embedded and fixed at the center of the bottom of the 2-level lifting barrel, the 3-level lifting flange nut is coaxially embedded and fixed at the center of the bottom of the 3-level lifting barrel, … …, and the n-level lifting flange nut is coaxially embedded and fixed at the center of the bottom of the n-level lifting barrel;
a 1-grade lifting flange nut is matched with the base screw rod 110, a 2-grade lifting flange nut is matched with a 1-grade lifting wire pipe, a 3-grade lifting flange nut is matched with a 2-grade lifting wire pipe, … …, and an n-grade lifting flange nut is matched with an n-1-grade lifting wire pipe;
the base screw rod 110 is coaxially sleeved inside the 1-level lifting wire tube, the 1-level lifting wire tube is coaxially sleeved inside the 2-level lifting wire tube, the 2-level lifting wire tube is coaxially sleeved inside the 3-level lifting wire tube, and … …, the n-2-level lifting wire tube is coaxially sleeved inside the n-1-level lifting wire tube;
the bottom of the 1-level lifting wire pipe is coaxially connected to the center of the bottom of the 1-level lifting barrel through a corresponding bearing and can rotate, and the 1-level lifting wire pipe is positioned at the upper part of the 1-level lifting flange nut; the bottom of the 2-level lifting wire pipe is coaxially connected to the center of the bottom of the 2-level lifting barrel through a corresponding bearing and can rotate, and the 2-level lifting wire pipe is positioned at the upper part of the 2-level lifting flange nut; the bottom of the 3-level lifting wire pipe is coaxially connected to the center of the bottom of the 3-level lifting barrel through a corresponding bearing and can rotate, and the 3-level lifting wire pipe is positioned at the upper part of the 3-level lifting flange nut; … …, respectively; the bottom of the n-1-level lifting wire pipe is coaxially connected to the center of the bottom of the n-1-level lifting barrel through a corresponding bearing and can rotate, and the n-1-level lifting wire pipe is positioned at the upper part of the n-1-level lifting flange nut;
a 1-level lifting sliding groove is axially arranged on the outer side wall of the base screw rod 110, and a 1-level lifting sliding tooth which is adaptive to and clamped in the 1-level lifting sliding groove to slide is arranged on the inner side wall of the bottom of the 1-level lifting screw tube; a 2-level lifting sliding groove is formed in the outer side wall of the 1-level lifting wire pipe along the axial direction of the 1-level lifting wire pipe, and a 2-level lifting sliding tooth which is adaptive to and clamped in the 2-level lifting sliding groove to slide is arranged on the inner side wall of the bottom of the 2-level lifting wire pipe; a 3-level lifting sliding groove is formed in the outer side wall of the 2-level lifting wire pipe along the axial direction of the 2-level lifting wire pipe, and a 3-level lifting sliding tooth which is adaptive to and clamped in the 3-level lifting sliding groove to slide is arranged on the inner side wall of the bottom of the 3-level lifting wire pipe; … …, respectively; an n-1-level lifting sliding groove is formed in the outer side wall of the n-2-level lifting wire pipe along the axial direction of the n-2-level lifting wire pipe, and an n-1-level lifting sliding tooth which is adaptive to and clamped in the n-1-level lifting sliding groove to slide is arranged on the inner side wall of the bottom of the n-1-level lifting wire pipe;
the base fixed barrel end cover 140 is coaxially fixed at the top end of the base fixed barrel 120, the 1-level lifting barrel end cover is coaxially fixed at the top end of the 1-level lifting barrel, the 2-level lifting barrel end cover is coaxially fixed at the top end of the 2-level lifting barrel, the 3-level lifting barrel end cover is coaxially fixed at the top end of the 3-level lifting barrel, … …, and the n-level lifting barrel end cover is coaxially fixed at the top end of the n-level lifting barrel; more than three 1-level lifting guide grooves are uniformly distributed on the inner side wall of the base fixed barrel end cover 140 along the axial direction, more than three 2-level lifting guide grooves are uniformly distributed on the inner side wall of the 1-level lifting barrel end cover along the axial direction, more than three 3-level lifting guide grooves are uniformly distributed on the inner side wall of the 2-level lifting barrel end cover along the axial direction, more than three 4-level lifting guide grooves are uniformly distributed on the inner side wall of the 3-level lifting barrel end cover along the axial direction, … …, and more than three n-level lifting guide grooves are uniformly distributed on the inner side wall of the n-1-level lifting barrel end cover along the axial direction;
correspondingly, more than three 1-level lifting guide strips are uniformly distributed on the outer side wall of the 1-level lifting barrel along the axial direction and are matched with the 1-level lifting guide grooves on the end cover 140 of the base fixing barrel; more than three 2-level lifting guide strips are uniformly distributed on the outer side wall of the 2-level lifting barrel along the axial direction of the lifting barrel and are matched with 2-level lifting guide grooves on the end cover of the 1-level lifting barrel; more than three 3-level lifting guide strips are uniformly distributed on the outer side wall of the 3-level lifting barrel along the axial direction of the outer side wall and are matched with the 3-level lifting guide grooves on the end cover of the 2-level lifting barrel; … …, respectively; more than three n-grade lifting guide strips are uniformly distributed on the outer side wall of the n-grade lifting barrel along the axial direction of the n-grade lifting barrel and are matched with n-grade lifting guide grooves on the end cover of the n-1-grade lifting barrel.
Specifically, n-grade lifting wire pipes in the n-grade lifting assembly are composed of n-grade lifting wire pipe rods and n-grade lifting wire pipe bases, the flange end at the bottom of each n-grade lifting wire pipe rod is fixedly connected with the n-grade lifting wire pipe bases through bolts and pins, the center of the outer bottom surface of the n-grade lifting barrel is provided with a flange nut stepped hole matched with and embedded into the n-grade lifting flange nut, the center of the inner bottom surface of the n-grade lifting barrel is provided with a lifting wire pipe stepped hole matched with and installed with the n-grade lifting wire pipe bases, the lifting wire pipe stepped hole is communicated with the flange nut stepped hole, the upper end of each n-grade lifting flange nut is higher than the flange nut stepped hole and extends into the lifting wire pipe stepped hole, the lower end surface of each n-grade lifting wire pipe base is provided with a radial bearing counter bore matched with and installed with a deep groove ball bearing, the deep groove ball bearing is installed at the upper end of the n-grade lifting flange nut and is positioned, the n-grade lifting wire pipe base is positioned in a lower hole of a step hole of the lifting wire pipe, a lower end surface bearing counter bore matched with and provided with a lower thrust needle roller bearing is arranged on the bottom surface of the lower hole of the step hole of the lifting wire pipe, an upper end surface bearing cover plate is arranged in an upper hole of the step hole of the lifting wire pipe, the upper end surface bearing cover plate is fixedly connected with the n-grade lifting barrel through bolts, and an upper end surface bearing counter bore matched with and provided with an upper thrust needle roller bearing is arranged on the upper end surface of the n-grade lifting wire pipe base.
Specifically, a lead screw through hole matched with the n-2-level lifting lead screw pipe to penetrate through is formed in the center of the n-1-level lifting lead screw pipe base, the n-1-level lifting sliding teeth are located on the inner side wall of the lead screw through hole and are axially arranged along the n-1-level lifting lead screw pipe base and used for being clamped in the n-1-level lifting sliding grooves of the n-2-level lifting lead screw pipe to slide up and down, and therefore when the n-2-level lifting lead screw pipe rotates, the n-1-level lifting lead screw pipe base and the n-1-level lifting lead screw pipe rod can be synchronously driven to rotate together through the n-1-level lifting sliding teeth.
Meanwhile, in order to prevent the n-grade lifting barrel and the n-grade lifting flange nut from rotating along with the n-1-grade lifting wire pipe, a lifting barrel step hole which is matched and sleeved at the top end of the n-1-grade lifting barrel is formed in the end cover of the n-1-grade lifting barrel, the n-grade lifting guide groove is located on the inner side wall with the smaller inner diameter in the lifting barrel step hole, and correspondingly, more than three n-grade lifting guide strips which are uniformly distributed on the outer side wall of the n-grade lifting barrel along the axial direction of the n-grade lifting barrel are matched with the n-grade lifting guide groove on the end cover of the n-1-grade lifting barrel; therefore, when the n-1-level lifting wire tube rotates, the n-level lifting guide strips on the n-level lifting barrel can only slide in the n-level lifting guide grooves on the n-1-level lifting barrel end cover due to the limitation of the n-level lifting guide grooves fixed on the n-1-level lifting barrel end cover at the top end of the n-1-level lifting barrel, so that the n-level lifting barrel and the n-level lifting flange nut can only move up and down along the axial direction of the n-level lifting flange nut and cannot rotate along with the n-1-level lifting wire tube, but the n-level lifting barrel can drive the n-level lifting wire tube base and the n-level lifting wire tube rod in the rotating state to move up and down along the axial direction of the n-level lifting flange nut so as to realize the synchronous lifting of n + 1-level lifting parts.
In the preferred embodiment of the radar antenna heavy-duty multi-section synchronous servo lift of the present invention, referring to fig. 6 and 7, fig. 6 is an enlarged view of a longitudinal cross-section of a driving and transmission part used in an embodiment of the radar antenna heavy-duty multi-section synchronous servo lift of the present invention, and fig. 7 is an enlarged view of an exploded driving and transmission part used in an embodiment of the radar antenna heavy-duty multi-section synchronous servo lift of the present invention; the driving and transmission part of the radar antenna heavy-load multi-section synchronous servo elevator comprises an encoder 610 and a servo speed reducer 620, wherein the encoder 610 is in transmission connection with the servo speed reducer 620 through a synchronous belt assembly, and the servo speed reducer 620 is in transmission connection with the base screw rod 110 through a chain assembly.
Specifically, the timing belt assembly includes a first timing pulley 611, a second timing pulley 612, and a timing belt 613, the first timing pulley 611 is mounted on the rotating shaft of the encoder 610, the second timing pulley 612 is mounted on the output shaft of the servo reducer 620, and the timing belt 613 is sleeved on the first timing pulley 611 and the second timing pulley 612.
Specifically, the chain assembly comprises a first chain wheel 621, a second chain wheel 622 and a chain 623, wherein the first chain wheel 621 is mounted at the lower end of the base screw 110, the second chain wheel 622 is mounted on an output shaft of the servo reducer 620, and the chain 623 is sleeved on the first chain wheel 621 and the second chain wheel 622.
Specifically, the radar antenna heavy-load multisection synchronous servo elevator further comprises a base 700 for mounting the base fixing barrel 120, the encoder 610 and the servo reducer 620, wherein a circular boss 720 is arranged on the base 700, and the lower part of the base fixing barrel 120 is fixed on the boss 720 through a bolt in a sleeved mode.
Specifically, a screw mounting hole 710 is formed in the center of the boss 720, and is adapted to the lower end of the base screw 110 to pass through, and is used for matching the screw upper cover plate 730 and the screw lower cover plate 740, and mounting the rotatable base screw 110 on a corresponding bearing assembly.
In the preferred embodiment of the radar antenna heavy-load multisection synchronous servo elevator, the servo reducer 620 specifically adopts a reducing motor with output torque more than 11000 n.m; the base 700 is formed by selecting a 16Mn steel plate with various thicknesses for welding and preliminary forming, machining flatness at a non-welding channel after stress relief through vibration aging, and machining a bearing hole and a threaded mounting hole; the base screw rod 110 and 1, 2, 3, … … and n-1 level elevating wire pipes are formed by machining after normalizing and tempering to HB 260-320 heat treatment by using 55# steel pipes or 42CrMo steel pipes, the base screw rod 110 adopts M60 Tr6-8g pipe threads, the 1 level elevating wire pipe adopts M80 Tr6-8g pipe threads, the 2 level elevating wire pipe adopts M100 Tr6-8g pipe threads, the 3 level elevating wire pipe adopts M1200 Tr6-8g pipe threads, and the like; the base screw rod 110, and sliding grooves on the outer side walls of the 1, 2, 3, … … and n-1 level lifting screw tubes are 10mm wide and 6mm deep; 1. 2, 3, … … and n-grade lifting flange nuts are made of aluminum bronze bars; the base fixing barrel 120, the base fixing barrel end covers 140, 1, 2, 3, … …, the n-grade lifting barrel, the n-1-grade lifting barrel end cover and the top end cover 170 are all processed by selecting 5A05-T6 pipes, and then hard chromium plating is carried out on the surfaces of the pipes; the guide grooves on the inner side walls of the base fixed barrel end cover 140, the 1, 2, 3, … … and the n-1 level lifting barrel end cover are 10mm wide and 4mm deep; other parts such as the lifting wire tube base, the upper end surface bearing cover plate, the screw upper cover plate 730, the screw lower cover plate and the like are made of No. 45 quenched and tempered steel.
It should be understood that the above-mentioned embodiments are merely preferred examples of the present invention, and not restrictive, but rather, all the changes, substitutions, alterations and modifications that come within the spirit and scope of the invention as described above may be made by those skilled in the art, and all the changes, substitutions, alterations and modifications that fall within the scope of the appended claims should be construed as being included in the present invention.

Claims (10)

1. A radar antenna heavy-load multi-section synchronous servo elevator is characterized by comprising: the lifting device comprises a base screw rod, a base fixing barrel end cover, 1, 2, 3, … …, n-1 level lifting screw pipes, 1, 2, 3, … …, n level lifting barrels, 1, 2, 3, … …, n level lifting flange nuts and 1, 2, 3, … … and n-1 level lifting barrel end covers, wherein n is a natural number and is not less than 4;
the 1-level lifting barrel is coaxially sleeved inside the base fixing barrel, the 2-level lifting barrel is coaxially sleeved inside the 1-level lifting barrel, the 3-level lifting barrel is coaxially sleeved inside the 2-level lifting barrel, and … …, the n-level lifting barrel is coaxially sleeved inside the n-1-level lifting barrel;
the 1-level lifting flange nut is coaxially embedded and fixed at the center of the bottom of the 1-level lifting barrel, the 2-level lifting flange nut is coaxially embedded and fixed at the center of the bottom of the 2-level lifting barrel, the 3-level lifting flange nut is coaxially embedded and fixed at the center of the bottom of the 3-level lifting barrel, … …, and the n-level lifting flange nut is coaxially embedded and fixed at the center of the bottom of the n-level lifting barrel;
the 1-level lifting flange nut is matched with the base screw rod, the 2-level lifting flange nut is matched with the 1-level lifting wire pipe, the 3-level lifting flange nut is matched with the 2-level lifting wire pipe, and … …, the n-level lifting flange nut is matched with the n-1-level lifting wire pipe;
the base screw rod is coaxially sleeved inside the 1-level lifting wire tube, the 1-level lifting wire tube is coaxially sleeved inside the 2-level lifting wire tube, the 2-level lifting wire tube is coaxially sleeved inside the 3-level lifting wire tube, and … …, the n-2-level lifting wire tube is coaxially sleeved inside the n-1-level lifting wire tube;
the bottom of the 1-level lifting wire pipe is coaxially connected to the center of the bottom of the 1-level lifting barrel through a corresponding bearing and can rotate, and the 1-level lifting wire pipe is positioned at the upper part of the 1-level lifting flange nut; the bottom of the 2-level lifting wire pipe is coaxially connected to the center of the bottom of the 2-level lifting barrel through a corresponding bearing and can rotate, and the 2-level lifting wire pipe is positioned at the upper part of the 2-level lifting flange nut; the bottom of the 3-level lifting wire pipe is coaxially connected to the center of the bottom of the 3-level lifting barrel through a corresponding bearing and can rotate, and the 3-level lifting wire pipe is positioned at the upper part of the 3-level lifting flange nut; … …, respectively; the bottom of the n-1-level lifting wire pipe is coaxially connected to the center of the bottom of the n-1-level lifting barrel through a corresponding bearing and can rotate, and the n-1-level lifting wire pipe is positioned at the upper part of the n-1-level lifting flange nut;
a 1-level lifting sliding groove is axially arranged on the outer side wall of the base screw rod, and a 1-level lifting sliding tooth which is adaptive to and clamped in the 1-level lifting sliding groove to slide is arranged on the inner side wall of the bottom of the 1-level lifting screw pipe; a 2-level lifting sliding groove is formed in the outer side wall of the 1-level lifting wire pipe along the axial direction of the 1-level lifting wire pipe, and a 2-level lifting sliding tooth which is adaptive to and clamped in the 2-level lifting sliding groove to slide is arranged on the inner side wall of the bottom of the 2-level lifting wire pipe; a 3-level lifting sliding groove is formed in the outer side wall of the 2-level lifting wire pipe along the axial direction of the 2-level lifting wire pipe, and a 3-level lifting sliding tooth which is adaptive to and clamped in the 3-level lifting sliding groove to slide is arranged on the inner side wall of the bottom of the 3-level lifting wire pipe; … …, respectively; an n-1-level lifting sliding groove is formed in the outer side wall of the n-2-level lifting wire pipe along the axial direction of the n-2-level lifting wire pipe, and an n-1-level lifting sliding tooth which is adaptive to and clamped in the n-1-level lifting sliding groove to slide is arranged on the inner side wall of the bottom of the n-1-level lifting wire pipe;
the end cover of the base fixed barrel is coaxially fixed at the top end of the base fixed barrel, the end cover of the 1-level lifting barrel is coaxially fixed at the top end of the 1-level lifting barrel, the end cover of the 2-level lifting barrel is coaxially fixed at the top end of the 2-level lifting barrel, the end cover of the 3-level lifting barrel is coaxially fixed at the top end of the 3-level lifting barrel, … …, and the end cover of the n-level lifting barrel is coaxially fixed at the top end of the n-level lifting barrel; more than three 1-level lifting guide grooves are uniformly distributed on the inner side wall of the base fixed barrel end cover along the axial direction of the base fixed barrel end cover, more than three 2-level lifting guide grooves are uniformly distributed on the inner side wall of the 1-level lifting barrel end cover along the axial direction of the base fixed barrel end cover, more than three 3-level lifting guide grooves are uniformly distributed on the inner side wall of the 2-level lifting barrel end cover along the axial direction of the 2-level lifting barrel end cover, more than three 4-level lifting guide grooves are uniformly distributed on the inner side wall of the 3-level lifting barrel end cover along the axial direction of the 3-level lifting barrel end cover, … …, and more than three n-level lifting guide grooves are uniformly distributed on the inner side wall;
correspondingly, more than three 1-level lifting guide strips are uniformly distributed on the outer side wall of the 1-level lifting barrel along the axial direction and are matched with the 1-level lifting guide grooves on the end cover of the base fixing barrel; more than three 2-level lifting guide strips are uniformly distributed on the outer side wall of the 2-level lifting barrel along the axial direction of the lifting barrel and are matched with 2-level lifting guide grooves on the end cover of the 1-level lifting barrel; more than three 3-level lifting guide strips are uniformly distributed on the outer side wall of the 3-level lifting barrel along the axial direction of the outer side wall and are matched with the 3-level lifting guide grooves on the end cover of the 2-level lifting barrel; … …, respectively; more than three n-grade lifting guide strips are uniformly distributed on the outer side wall of the n-grade lifting barrel along the axial direction of the n-grade lifting barrel and are matched with n-grade lifting guide grooves on the end cover of the n-1-grade lifting barrel.
2. The radar antenna heavy-duty multi-section synchronous servo lift of claim 1, wherein: the n-grade lifting wire pipe in the n-grade lifting assembly consists of an n-grade lifting wire pipe rod and an n-grade lifting wire pipe base, the flange end at the bottom of the n-grade lifting wire pipe rod is fixedly connected with the n-grade lifting wire pipe base through bolts and pins, the center of the outer bottom surface of the n-grade lifting barrel is provided with a flange nut stepped hole matched and embedded with the n-grade lifting flange nut, the center of the inner bottom surface of the n-grade lifting barrel is provided with a lifting wire pipe stepped hole matched and installed with the n-grade lifting wire pipe base, the lifting wire pipe stepped hole is communicated with the flange nut stepped hole, the upper end of the n-grade lifting flange nut is higher than the flange nut stepped hole and extends into the lifting wire pipe stepped hole, the lower end surface of the n-grade lifting wire pipe base is provided with a radial bearing counter bore matched and installed with a deep groove, a deep groove ball bearing is installed at the upper end of the n-grade lifting flange nut and is positioned in the radial bearing counter bore, the n-grade lifting wire pipe base is positioned in the lower, the lower end face bearing counter bore matched with and provided with the lower thrust needle roller bearing is arranged on the bottom face of the lower hole of the stepped hole of the lifting wire pipe, the upper end face bearing cover plate is arranged in the upper hole of the stepped hole of the lifting wire pipe and fixedly connected with the n-grade lifting barrel through bolts, and the upper end face of the n-grade lifting wire pipe base is provided with the upper end face bearing counter bore matched with and provided with the upper thrust needle roller bearing.
3. The radar antenna heavy-duty multi-section synchronous servo lift of claim 1, wherein: the center of the n-1-level lifting wire tube base is provided with a screw rod through hole which is matched with the n-2-level lifting wire tube to pass through, and the n-1-level lifting sliding teeth are positioned on the inner side wall of the screw rod through hole, are axially arranged along the n-1-level lifting wire tube base and are used for being clamped in the n-1-level lifting sliding grooves of the n-2-level lifting wire tube to slide up and down.
4. The radar antenna heavy-duty multi-section synchronous servo lift of claim 1, wherein: the n-1 level lifting barrel end cover is provided with a lifting barrel step hole which is matched and sleeved at the top end of the n-1 level lifting barrel, the n level lifting guide groove is positioned on the inner side wall with smaller inner diameter in the lifting barrel step hole, and correspondingly, more than three n level lifting guide strips which are uniformly distributed on the outer side wall of the n level lifting barrel along the axial direction of the n level lifting barrel are matched with the n level lifting guide grooves on the n-1 level lifting barrel end cover.
5. The radar antenna heavy-duty multi-section synchronous servo lift of claim 1, wherein: the top end cover is installed on the top end of the n-stage lifting barrel and used for installing the servo rotating platform, the antenna supporting frame is erected on the servo rotating platform, and the X antenna and the S antenna are respectively hoisted on two sides of the antenna supporting frame.
6. The radar antenna heavy-duty multi-section synchronous servo lift of claim 1, wherein: the base lead screw passes through the chain subassembly and is connected with servo speed reducer transmission, and the chain subassembly includes first sprocket, second sprocket and chain, and first sprocket is installed on the lower extreme of base lead screw, and the second sprocket is installed on servo speed reducer's output shaft, and the chain suit is on first sprocket and second sprocket.
7. The radar antenna heavy-duty multi-section synchronous servo lift of claim 6, wherein: the servo speed reducer is connected with the encoder through a synchronous belt assembly in a transmission mode, the synchronous belt assembly comprises a first synchronous belt wheel, a second synchronous belt wheel and a synchronous belt, the first synchronous belt wheel is installed on a rotating shaft of the encoder, the second synchronous belt wheel is installed on an output shaft of the servo speed reducer, and the synchronous belt is sleeved on the first synchronous belt wheel and the second synchronous belt wheel.
8. The radar antenna heavy-duty multi-section synchronous servo lift of claim 7, wherein: the servo speed reducer is characterized by further comprising a base used for mounting the servo speed reducer and the encoder, wherein a boss is arranged on the base, and the lower portion of the base fixing barrel is fixed on the boss in a sleeved mode through bolts.
9. The radar antenna heavy-duty multi-section synchronous servo lift of claim 8, wherein: the center of the boss is provided with a screw rod mounting hole which is matched with the lower end of the base screw rod and penetrates through the lower end of the base screw rod, and the screw rod mounting hole is used for being matched with an upper screw rod cover plate and a lower screw rod cover plate and corresponding bearing assemblies to mount the rotatable base screw rod.
10. The radar antenna heavy-duty multi-section synchronous servo lift of claim 1, wherein: the base screw rod adopts M60 Tr6-8g pipe threads, the 1-level lifting wire tube adopts M80 Tr6-8g pipe threads, the 2-level lifting wire tube adopts M100 Tr6-8g pipe threads, and the 3-level lifting wire tube adopts M1200 Tr6-8g pipe threads; the base screw rod and the sliding grooves on the outer side walls of the 1, 2, 3, … … and n-1 grade lifting screw pipes are 10mm wide and 6mm deep; the guide grooves on the inner side walls of the base fixed barrel end cover and the 1, 2, 3, … … and n-1 level lifting barrel end cover are 10mm wide and 4mm deep.
CN201911014433.1A 2019-10-24 2019-10-24 Radar antenna heavy-load multisection synchronous servo elevator Pending CN110970702A (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112428302A (en) * 2020-10-10 2021-03-02 福州国化智能技术有限公司 Method for synchronously lifting steps
CN114436149A (en) * 2022-04-11 2022-05-06 西安星通通信科技有限公司 Automatic lifting system for antenna installation

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Publication number Priority date Publication date Assignee Title
CN201065317Y (en) * 2006-12-27 2008-05-28 中国兵器工业第二○六研究所 Frame type radar antenna lifting device
CN207957626U (en) * 2018-03-14 2018-10-12 辽宁辽无一电子有限公司 A kind of radar leveling jack
CN109368529A (en) * 2018-12-10 2019-02-22 长沙市天映机械制造有限公司 A kind of jack device for airframe jacking
CN210576389U (en) * 2019-10-24 2020-05-19 南京吉凯微波技术有限公司 Radar antenna heavy-load multisection synchronous servo elevator

Patent Citations (4)

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Publication number Priority date Publication date Assignee Title
CN201065317Y (en) * 2006-12-27 2008-05-28 中国兵器工业第二○六研究所 Frame type radar antenna lifting device
CN207957626U (en) * 2018-03-14 2018-10-12 辽宁辽无一电子有限公司 A kind of radar leveling jack
CN109368529A (en) * 2018-12-10 2019-02-22 长沙市天映机械制造有限公司 A kind of jack device for airframe jacking
CN210576389U (en) * 2019-10-24 2020-05-19 南京吉凯微波技术有限公司 Radar antenna heavy-load multisection synchronous servo elevator

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112428302A (en) * 2020-10-10 2021-03-02 福州国化智能技术有限公司 Method for synchronously lifting steps
CN112428302B (en) * 2020-10-10 2024-05-24 福州国化智能技术有限公司 Synchronous lifting method for steps
CN114436149A (en) * 2022-04-11 2022-05-06 西安星通通信科技有限公司 Automatic lifting system for antenna installation

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