CN2630073Y - Linear electric-motor driven road junction guardrail - Google Patents

Abstract

The utility model relates to linear motor drive grade crossing guardrail; wherein, a plurality of transport wheels are arranged below the guardrail, and is characterized in that a composite secondary is arranged on the guardrail; the linear motor is arranged as a clamp suspending structure, namely a composite secondary is positioned between an upper clamp wheel and a lower clamp wheel, which are formed as a wheelset; the linear motor is clamp suspended on the secondary by a plurality sets of wheelsets which can be adjusted and lifted. The central shafts of the upper clamp wheel and the lower clamp wheel are connected with a motor bracket fixed with a linear motor. The utility model is only required to be arranged within the range of the linear motor, and a fixed value precision of an air gap Delta within 1-4mm is required between 0.25mm and -.25mm, so that the difficulty of manufacturing and the cost are reduced. The utility model has high practical application value. The failure rate at the grade crossing guardrail is greatly reduced, and the maintenance cost and the operating cost are reduced, as well as the noise is low; the assembly is easy and the engineering cost is reduced; the stepless adjustment and the intellectualized controlled can realized, and the utility model has extensive economic benefit and social benefit.

Description

Linear motor driving road junction guardrail

Affiliated field: the utility model relates to a kind of road junction guardrail, particularly a kind of linear motor driving road junction guardrail.

If background technology: in the mechanical transmission structure in the past, people often adopt rotating machine as propulsive effort, but when need producing linear drives power, need to increase some devices such as reductor, sprocket wheel, chain, gear, tooth bar, leading screw, screw, steel rope.Though this technology is very extensive in the use, very stable, and approved by everybody, but owing to shortcomings such as the intermediate link of its driving too much causes installing complexity, fault rate height, maintenance is inconvenient, noise is high, efficiency losses is big also are that people have a headache.The shortcoming of rotating machine propulsive effort road junction guardrail maximum is: (1) causes blocking the traffic owing to moving difficulty when breaking down; (2) at ice and snow road skidding can appear winter.The constructional feature of linear motor driving road junction guardrail:, make the use of linear electric motors also be familiar with by most of people along with the fast development of linear electric motors and control technology.Because linear motor driving is simple in structure, do not have mechanical contact, low noise, advantage such as non-maintaining, this just makes people more and more pay attention to the application of linear electric motors.And also all drop into a large amount of human and material resources it is studied, but when in use adopting the elementary this structure of long secondary weak point, because time level length is several times or tens times of elementary (linear electric motors) length.At this moment if think to guarantee on the whole a certain fixed value of elementary and secondary air gap delta in 1～4mm, accuracy guarantee is to be difficult to realize or even impossible between ± 0.25mm, allow to promptly realize but manufacturing cost also can correspondingly increase substantially that this has become and uses the bottleneck of linear electric motors as the road junction guardrail.

Summary of the invention: the purpose of this utility model provides a kind of simple in structure, linear motor driving road junction guardrail of operating steadily, effectively guaranteeing the air gap precision.Order of the present utility model is realized by following structure: the utility model is a kind of linear motor driving road junction guardrail, a plurality of road wheels are installed in the guardrail bottom, it is characterized in that: composite secondary is installed on the guardrail, linear electric motors adopt the floating suspended structure of folder to install, promptly going up between clip wheel and the following clip wheel is composite secondary, last clip wheel constitutes wheels with following clip wheel, the wheels of a few cover scalable lifting with linear electric motors folders floating be suspended on secondary on, last clip wheel all is connected electric machine support with the center shaft of following clip wheel, fixing linear electric motors on the carriage.Linear electric motors are by driving the secondary work that straight-line motion is realized guardrail of doing.The utility model had solved in the past " rotating machine drives the road junction guardrail ", and complicated, shortcomings such as fault rate is high, maintenance is inconvenient, noise height are installed.The floating suspended structure of folder has also solved and guaranteed elementary and secondary air gap delta difficult problem that realizes between 2 ± 0.25mm on the whole when using linear electric motors simultaneously.And in actual production is made, by adopting the floating suspended structure of folder, owing to the restriction of my father wheel makes linear electric motors and clip wheel integral body along with secondary fluctuation up and down changes, make like this linear electric motors and secondary between air gap remain in the interstice coverage that the frame bouyant wheel limited.Therefore only need guarantee when actual installation that the air gap value in the motor length scope can reach the requirement that guarantees the air gap precision, and not need strictly to require overall precision.So not only reduced manufacture difficulty but also reduced cost.Be of very high actual application value from this structure of practical standpoint.The utility model descends road junction guardrail fault rate significantly, and maintenance cost, over-the-road expense reduce, and noise is little, and the equipment simple installation is easily gone, and engineering cost reduces, and can realize infinite speed variation, and intelligent control has economic benefit and social benefit widely.

Description of drawings:

Fig. 1 is the utility model shape assumption diagram

Fig. 2 is linear motor driving road junction guardrail local structure figure

Fig. 3 is the left view of Fig. 2

Fig. 4 is the floating suspended structure cutaway view of folder

Fig. 5 is that the A of Fig. 4 is to view

The specific embodiment:

The utility model as shown in Figure 1 is a kind of linear motor driving road junction guardrail, a plurality of road wheels 2 are installed in guardrail 1 bottom, as Fig. 2, shown in Figure 3, composite secondary 3 is installed on the guardrail 1, linear electric motors 6 adopt the floating suspended structure of folder to install, promptly going up between clip wheel 4 and the following clip wheel 5 is composite secondary 3, last clip wheel 4 constitutes wheels with following clip wheel 5, the wheels of a few cover scalable lifting are with floating being suspended on secondary 3 of linear electric motors 6 folders, as Fig. 4, shown in Figure 5, last clip wheel 4 all is connected electric machine support 7 with the center shaft of following clip wheel 5, fixing linear electric motors 6 on the carriage 7.The utility model linear electric motors are by driving the secondary work that straight-line motion is realized guardrail of doing, secondary 3 is that the magnetic that is made of steel plate is secondary, elementary iron core 6 is to be pressed by two kinds of silicon steel plate snap-fasteners that yoke portion differs in length to constitute, the high-temperature insulation bond layer is arranged between the silicon steel plate, and the elementary iron core 6 that drives driving exists magnetic to float air gap with guide rail.

Claims (1)

1, a kind of linear motor driving road junction guardrail, a plurality of road wheels (2) are installed in guardrail (1) bottom, it is characterized in that: guardrail (1) is gone up composite secondary (3) is installed, linear electric motors (6) adopt the floating suspended structure of folder to install, promptly going up between clip wheel (4) and the following clip wheel (5) is composite secondary (3), last clip wheel (4) constitutes wheels with following clip wheel (5), the wheels of a few cover scalable lifting float linear electric motors (6) folder and are suspended on secondary (3), last clip wheel (4) all is connected electric machine support (7) with the center shaft of following clip wheel (5), and carriage (7) is gone up fixedly linear electric motors (6).

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