CN2442398Y

CN2442398Y - Electric screw automatic lift antenna rod

Info

Publication number: CN2442398Y
Application number: CN 00226893
Authority: CN
Inventors: 上小念
Original assignee: Individual
Current assignee: Individual
Priority date: 2000-10-19
Filing date: 2000-10-19
Publication date: 2001-08-08
Anticipated expiration: 2010-10-19

Abstract

The utility model relates to an automatic electric screw lift antenna rod, which has a screw which is connected with an electric mechanism. A rod body overlapped by 2 to 10 pipes is arranged on the screw; a guide ring is arranged at the lower end of each pipe; a baffle ring is arranged in the pipe. An anemometer and a lightning needle are arranged on the top of the rod body; a suspension rope frame is arranged above the rod body; a motor and a wire wheel are arranged below a suspension rope. Each pipe is provided with an outer locking and an outer deviation correcting mechanism; a floating and automatic deviation correcting mechanism is arranged in each pipe. In addition, the lower part of the screw is provided with a floating bearing. Not only the utility model has all advantages of the prior art, but also the rising height is increased; the highest height can reach 40M. The automatic electric screw lift antenna rod realizes and ensures that people freely and smoothly get on or off the antenna rod.

Description

Electric screw automatic lifting mast

Along with the development of communications industry, the demand of automatic lifting mast is increasing, and also more and more to the requirement of product specification, performance is more and more higher, and now the utility model belongs to communication equipment field at present, specifically is a kind of antenna rod device that erects a television antenna.

Mast of the prior art has: pneumatic, hydraulic pressure, motor affect types such as steel wire rope, and some common shortcoming of these antenna bar is that rising or falling speed is slow, and rigidity is relatively poor, bearing capacity is little, set up and remove and receive slowly, to resisting the extreme natural environment ability, particularly pneumatic and hydraulic lifting arm, cause is often leaked gas, leakage, and rising or falling speed is very slow, and the height instability of the body of rod, the broken ice ability of wrapping up in, can not use in cold district, thereby influence communication range and communication quality.

210 in China newly develops a kind of motor machine vertical antenna bar in the recent period, and its rising or falling speed is fast; About bearing capacity 80KG, can resist extreme natural environment; Its working temperature-30 ℃～40 ℃ is stored transport temperature-30 ℃～60 ℃; Broken to wrap up in the ice ability strong, can wind resistance power 8 grades; Can regulate height continuously, set up conveniently, within 20 minutes, can finish.But because no satisfactory after correcting, so it is very tight to the physical dimension requirement of the body of rod, precision is very high; What it adopted in addition is interior retaining mechanism, so its rising highly only limits to 8M, lifting often takes place in the course of the work not freely, stuck phenomenon is arranged, at present still in the middle of test, be not widely used as yet, in addition, motor machine vertical antenna bar, its lifting freely, except the physical dimension to the body of rod has certain required precision, also depend on the perpendicularity and the concentricity of screw rod and body of rod nut, only guarantee it is infeasible by improving precision.

The purpose of this utility model provides a kind of electric screw automatic lifting mast, it has adopted a whole set of satisfactory after correcting and outer locking mechanism, to overcome existing problem in the existing motor machine vertical antenna pole technology, it not only has whole advantage of the prior art, and improved rising greatly highly, reach as high as 40M, the antenna body of rod is steady freely up and down the time.

This purpose realizes with following technical proposal: this electric screw automatic lifting mast, the screw rod that it has motor drive mechanism and joins with it, device has the liftable body of rod of being dressed up by 2～10 pipe joint intussusceptions on screw rod, there is guide ring every pipe joint lower end, there is baffle ring its inboard, anemometer is arranged at body of rod top, there is lightning rod on the top, the upper unit of the body of rod has the rope support of band lifting rope, there is flat rank weighing apparatus line wheel the lifting rope lower end, it is characterized in that every pipe joint is provided with outer locking mechanism on the body of rod, and deviation correction mechanism, described deviation correction mechanism has the automatic deviation correction mechanism of floating in outer manually deviation correction mechanism of pipe and the pipe; Described balanced line wheel is provided with the automatic speed regulation motor; Hypomere at screw rod is provided with floating bearing.The outer manually deviation correction mechanism of described pipe can be to constitute a regulating ring by several sections arc rings, is equipped with tight loop in its outer periphery, also is provided with fine-tuning fixture simultaneously on tight loop.The formation of unsteady automatic deviation correction mechanism can be that a captive nut is set in every pipe joint in the described pipe, the captive nut lower end is provided with four pilot holes, its side is provided with four lockholes, at captive nut above guide ring, be respectively equipped with float spring and guide post on the corresponding guide ring of pilot hole institute of captive nut lower end, guide post can directly stretch in four pilot holes.The guide ring periphery is provided with fine setting.

The utility model is owing to adopt a whole set of satisfactory after correcting and body of rod outer locking mechanism, guarantee the perpendicularity and the concentricity of screw rod and body of rod guide ring (nut), it is except possessing whole advantage of the prior art, it has also improved the rising height of the antenna body of rod greatly, can regulate continuously, reach as high as 40M, enlarged the microwave sighting distance, reduced the machining accuracy of the body of rod than like product; Its lifting steadily freely, at the uniform velocity, in order, no stuck phenomenon, speed is fast, strength and stiffness are good, bearing capacity is bigger, maximum can be carried 700KG; Improved the extreme natural environment ability of resisting, anti-to wrap up in the ice ability strong, but surperficial accumulated ice operate as normal when 2CM is thick; It is simple in structure, operation and easy to maintenance.

Following accompanying drawing has provided embodiment of the present utility model.

Fig. 1 is the mechanical drive principle figure of the utility model body of rod structure.

Fig. 2 is by the body of rod contour structures schematic diagram after the machine driving.

Fig. 3 is body of rod external and internal compositions and the screw rod annexation schematic diagram that deviation correction mechanism is arranged.

In conjunction with the accompanying drawings the utility model is further described:

As shown in Figure 1, 2, this electric screw automatic lifting mast has motor transmission mechanism 1, driven screw rod 2 joins with it, device has the three-joint pipe suit to form the liftable body of rod 3 on screw rod, guide ring (nut) 4 is equipped with in every pipe joint lower end, and the inside front of every pipe joint is equipped with baffle ring 5, and the top returning apparatus of the body of rod has rope support 6, at rope support four steel wire ropes 16 of having hung oneself, line wheel and buncher 17 are equipped with in every steel wire rope lower end by the orientation.At the body of rod top anemometer 14 is housed, lightning rod 15 is equipped with on the top.Part polished rod section below motor transmission mechanism and the screw rod is all installed in platform 18.As shown in Figure 3: external lock 7 is equipped with in the outside of the every pipe joint on the body of rod, referring to Fig. 2, is added with regulating ring 9 in the joint of higher level pipe and subordinate's tube end, fine setting hold-down screw 10 is housed on the lock ring outer ring 20 on this regulating ring and has constituted the outer manually deviation correction mechanism of pipe.A nut that can fluctuate 11 in being every pipe joint, body of rod inside is housed, the screw lower end is trumpet type and does not have screw thread, the nut lower end is provided with four pilot holes, the side of nut is provided with four lockholes, on the guide ring 4 of every pipe joint, is provided with four guide posts 12, floating spring 19 is housed on the every guide post, the position of every set guide post with its on set four pilot holes in square nut bottom corresponding respectively, when the body of rod 3 upwards promoted, guide post was directly in the patchhole.Periphery around guide ring 4 is added with a regulating ring 13, and its draw materials is the same with regulating ring in the outer manually deviation correction mechanism.See the lower part of Fig. 3, at the polished rod of screw rod 2 hypomeres a floating bearing 8 is housed partly, promptly bearing and polished rod have certain interval, referring to Fig. 1, this bearing and transmission mechanism with sampling device in platform.

The operation principle of this electric screw automatic lifting mast: when needing to rise, (referring to Fig. 1), at first actuating motor just changes it, by the speed changer drive screw turns, the guide ring that drives (being on every pipe joint) on the body of rod is done the straight line ascending motion under the restriction of regulating ring, after the one-level pipe is raised to the position, driving subordinate's pipe under the effect of pipe inner baffle ring rises, the guide ring that makes subordinate pipe lower end partly enters the threaded portion by the polished rod of screw rod, the higher level manages the disengaging screw rod then, realize inter-stage positioning and locking (see figure 3),, keep till the operating state until being raised to predetermined altitude.Motor counter-rotating when the body of rod is regained, the captive nut of deviation correction mechanism moves down in the pulling, and mechanism is extrapolated with outer locking, and the body of rod moves down, and is recovered to original position in proper order.

Claims

1, a kind of electric screw automatic lifting mast, the screw rod (2) that it has motor drive mechanism (1) and joins with it, device has the liftable body of rod of being dressed up by 2～10 pipe joint intussusceptions (3) on screw rod, there is guide ring (4) every pipe joint lower end, there is baffle ring (5) its inboard, anemometer is arranged at body of rod top, there is lightning rod on the top, the upper unit of the body of rod has the rope support (6) of band lifting rope, there is the balanced line wheel lifting rope lower end, it is characterized in that on every pipe joint of the body of rod, being provided with outer locking mechanism (7), and deviation correction mechanism, described deviation correction mechanism has the automatic deviation correction mechanism of floating in outer manually deviation correction mechanism of pipe and the pipe; Described balanced line wheel is provided with the automatic speed regulation motor; Hypomere at screw rod (2) is provided with floating bearing (8).

2, electric screw automatic lifting mast according to claim 1, it is characterized in that the outer manually deviation correction mechanism of described pipe can be to constitute a regulating ring (9) by several sections arc rings, be equipped with tight loop in its outer periphery, on tight loop, also be provided with fine-tuning fixture (10) simultaneously.

3, electric screw automatic lifting mast according to claim 1, the formation that it is characterized in that unsteady automatic deviation correction mechanism in the described pipe can be that a captive nut (11) is set in every pipe joint, the captive nut lower end is provided with four pilot holes, its side is provided with the top of four lockhole captive nuts in guide ring (4), be respectively equipped with floating spring and guide post (12) on the corresponding guide ring of pilot hole institute of captive nut lower end, guide post can directly stretch in four pilot holes.

4,, it is characterized in that being equipped with regulating ring (13) around the outer periphery of guide ring (4) according to claim 1,2 or 3 described electric screw automatic lifting masts.