CN2063093U - Device for buffering and preventing current-collector of trolleybus from jumping off - Google Patents

Abstract

The utility model relates to a device for buffering and preventing current-collector of trolleybus from jumping off, belonging to an elastically damping device. The device is composed of a motion lever, a Y-shaped limiting plate, a main spring, a main spring base, an insulating cover, an insulating seat, a supporting body, a lining, a supporting plate, a collector headstock, a hinge and a protective plate. The utility model is characterized in that the collector headstock and an overhead wire can be tightly contacted, preventing the trolley bus from jumping off. Besides, the device has the advantages of simple structure and safety and reliability.

Description

Device for buffering and preventing current-collector of trolleybus from jumping off

The utility model belongs to the trackless trolley car trolley head buffering off-line preventer that a kind of public transport is used.

The trolley head assembly parts of installing on the public transport trackless trolley car are made up of trolley head and current collection headstock at present.Being connected between trolley head and the current collection headstock is to adopt the fixed type connecting device.The copper contact of dress is under the effect of spring in the middle of the fixed link top on the trolley head, copper contact is adjacent to through carbon crystal bar and overhead conductor, the bottom of fixed link is being adorned and is being wired to trolley pole and gets on to make trackless trolley car energising to travel, and fixed link is to be fixed on the current collection headstock of main support effect with nut, flat gasket and spring washer.This trolley head and the current collection headstock of making is fastened on one device rigidly, rigidity is very strong, there is not flexible leeway, therefore contacting of trolley head and overhead conductor, the flexibility of the elastomeric bounce that makes progress of trolley pole base that is contained in the trackless trolley car back of placing one's entire reliance upon and overhead conductor net itself is kept in touch from gravity and is adjacent to.This contact is only fitted at the mounting means of the height of overhead conductor net, overhead conductor net more freely under the state, with under the flexible reasonable condition of overhead conductor net, could absorb, because trackless trolley car is at Uneven road, sudden change such as road curved way and cause the vibrations that vehicle body top ripple forms does not cause trolley head to break away from the overhead conductor net because of car itself shakes and kicks the bucket.But trackless trolley car by in the tunnel or the overhead conductor net at the crisscross place of four corners, or overhead conductor net turnout track place, because overhead conductor net mounting means changes, the gauze rigidity strengthens, so trackless trolley car is because Uneven road, sudden change situations such as road curved way cause vehicle body top itself ripple vibrations causing with regard to not absorbing trolley head and overhead conductor net to break away from too much, influence the normal operation of trackless trolley car.This is because there is the event of following shortcoming in the fixed type connecting device between trolley head and the current collection headstock.

1. this fixed type connecting device is subjected to the height of overhead conductor and placing restrictions on of mounting means, affects the flexibility of overhead conductor net;

2. this fixed type connecting device, the shift rod on the trolley head assembly parts can not move up and down, and makes it to fit with the overhead conductor rack is empty with regard to the bounce that relies on trolley pole base spring; Avoid crossing the strong off-line phenomenon that produces with regard to being difficult to because of rigidity.

3. sudden change situations such as this fixed type connecting device stands not cause Uneven road, the road curved way and cause the ripple vibrations of vehicle body top and cause off-line.

The purpose of this utility model is will solve owing to there are the problems referred to above, make trackless trolley car in tunnel or overhead conductor net cross street, bifurcated highway section etc. when locating the complicated location of gauze and travelling, a kind of buffering off-line preventer that increases in trolley head assembly parts is provided, just can avoids in tunnel or gauze intersects, crotch is crossed because of the gauze rigidity purpose that off-line is kicked the bucket is taken place by force.

The utility model is achieved like this.Below in conjunction with shown in Figure 1, its structure and operating principle are illustrated.The trolley head buffering off-line preventer that is made is actually a springing.This device is made of vital partss such as shift rod, copper contact, spring, fork-shaped positioning plate, supporting mass, circlip for bore, seal ring, main spring seat, pad, insulating cove, main spring, bench insulator, stop screw, lining, nut, flat gasket, spring washer, cord, tightening screw, stay bearing plate, current collection headstock, hinge and fenders.Shift rod is made with the unoxidizable alloy steel, owing to its effect that realizes shock absorber that moves up and down, it is the main support accessory of trolley head, the upper end has spherical pair to make trolley head free to rotate, there is the screw thread nut lower end, flat gasket and spring washer are fixed on cord on the shift rod, and the endoporus of shift rod is equipped with copper contact and spring, and the effect of spring is to make copper contact, carbon crystal bar and overhead conductor have excellent contact to fit.Two grooves that the cylindrical top of shift rod is milled with symmetry are equipped with the fork-shaped positioning plate, limiting its end position that moves down, it and fender up and down with moved further and and fender between the normal rotation of bigger space with the assurance fender arranged.Supporting mass is the last guided bearing of shift rod, and circlip for bore is the fixed bearing body position.The effect of seal ring is that anti-sealing, dust enter spring housing.The main spring seat is the major part of trolley head buffering off-line preventer, it and pad, insulating cove, main spring, bench insulator, stop screw and lining are formed a springing, it also is the bearing of lower support on the shift rod, it is again the bearing of main spring, pad bears the compressive force of main spring, blocks insulating cove.Insulating cove and bench insulator are made by polytetrafluoroethylene or bakelite, are to prevent that main spring is charged and shorten work life.Main spring is to make with spring steel, and it is springing energy storage and conversion, the source of mobile shift rod kinetic energy.Lining is the supporting of guiding under the shift rod, is fixed on the main spring seat with stop screw, move up and down to prevent lining, and the friction when moving up and down in order to reduce shift rod, lining is to make of copper or cast iron.Nut, flat gasket, spring washer are to be screwed on the screw thread of shift rod lower end, also are the limit devices that moves on the restriction shift rod.Cord be make overhead conductor electricity by shift rod, pass to through it again and make electrical motor work on the electrical motor of trackless trolley car.The effect of tightening screw 19 is fastening copper contacts 2.Stay bearing plate and current collection headstock and main spring seat weld together are to play a part support.Hinge and fender are to prevent just in case when off-line, make the horizontal electric wire of overhead conductor net slip off the unlikely damage that causes along fender, and hinge can make fender move freely.

The principle of its action is such.When electric car in normal driving process, because springing is compressed, there is certain pressure to exist between trolley head and the overhead conductor, in case trackless trolley car runs into Uneven road, during sudden change such as road curved way situation, the vehicle body of electric car produces the ripple of running up and down and shakes when making trolley head break away from overhead conductor, main spring pressure in the springing reduces, the tension force of main spring just upwards promotes shift rod rapidly, trolley head is protruded upward, with compensation trolley head and overhead conductor relative displacement in vertical direction, thereby trolley head and overhead conductor are adjacent to all the time, and keep certain pressure, kick the bucket with the off-line that prevents trolley head.For the overall process that guarantees electric car operation can both cruising; when selecting spring for use, must guarantee different installation at the height and the gauze of different overhead conductor nets; and different rigidity or the flexibilities of netting twine; can both guarantee when normal operation by compression; like this in case run into because electric car shakes when trolley head and overhead conductor are broken away from; springing just can be made reflection soon; also must pay attention to simultaneously; just in case during off-line; for stretching out the back, the prevention trolley head collides with the horizontal line in the gauze; must adopt the fender guard of fender, make horizontal line not damage horizontal line along the fender guard slippage.

The utility model has following advantage compared with the prior art:

1. shift rod 1 can move up and down under the effect of main spring 11, makes trolley head assembly parts have the cushion characteristic of absorbing vibration, produces by force trolley pole and comes off to stick up and debate sub-phenomenon thereby avoid crossing because of overhead conductor net rigidity.

2. after adopting the design of part of insulating cove 10, bench insulator 12, can prevent that main spring 11 is charged, can prolong the work life of main spring 11 like this.

3. shift rod 1 uniting up and down under the guiding at last guided bearing body 5 and following pilot bushing 14, guarantee moving up and down of shift rod 1, the wool felt of upper support body 5 endoporus fitting surfaces dresses seal ring 7 can prevent that sealing, dust enter the main spring chamber, and the bottom is by lining 14 power of reducing friction.

4. fender 23 and shift rod 1 move up and down synchronously, to prevent just in case trolley pole trolley head is unlikely when coming off that the horizontal line of overhead conductor net is damaged.

Characteristics of the present utility model can also obtain further instruction from the following drawings and embodiment.

Fig. 1 is the utility model trolley head buffering off-line preventer idling lotus position view;

The 1--shift rod, 2--copper contact, 3--spring; 4--fork-shaped positioning plate, 5--supporting mass, 6--circlip for bore; the 7--seal ring, 8--main spring seat, 9--pad; the 10--insulating cove, 11--main spring, 12--bench insulator; the 13----stop screw; the 14--lining, 15--nut, 16--spring washer; the 17----flat gasket; the 18--cord, 19--tightening screw, 20--stay bearing plate; 21--current collection headstock; the 22--hinge, 23--fender, 24--overhead conductor.

Embodiment of the present utility model sees shown in Figure 1.This is a kind of trolley head buffering off-line preventer idling lotus site plan that is used on the public transport trackless trolley car.The current collection headstock 21 of trolley head buffering off-line preventer and main spring seat 8 are welded in stay bearing plate 20 and hinge 22 on the current collection headstock 21 by axis centre welding jail again.Lining 14 is pressed into main spring seat 8, stop screw 13 is spun on the main spring seat 8 with fixed hub 14, lining 14 usefulness coppers are done.Copper contact 2, spring 3, tightening screw 19 are respectively charged on the shift rod 1, and shift rod 1 is to make with the 40Cr material.After being contained in supporting mass 5, seal ring 7, pad 9, insulating cove 10, main spring 11 and bench insulator 12 on the shift rod 1 earlier, again with instrument position bar 1 together with the top part main spring seat 8 of together packing into, snap in circlip for bore 6 in the endoporus of main spring seat 8 and block supporting mass 5.Seal ring 7 usefulness wool felts are done, and insulating cove 10, bench insulator 12 are to make of polytetrafluoroethylmaterial material, and main spring 11 usefulness 65Mn make.Loading onto flat gasket 17, spring washer 16 and nut 15 at the thread end of shift rod 1 tightens.Then fork-shaped positioning plate 4 is installed in the groove of shift rod 1, fender 23 is installed on the hinge 22.Cord 18 just is installed when being assembled on the trackless trolley car trolley pole more at last to mounted trolley head assembly parts.

Claims (3)

1; a kind of trackless trolley car trolley head buffering off-line preventer that belongs to the public transport use; mainly by shift rod; the fork-shaped positioning plate; the main spring seat; main elasticity; insulating cove; bench insulator; supporting mass; lining; stay bearing plate; the current collection headstock; part such as hinge and fender is formed; it is characterized in that being welded with spring perch on the current collection headstock; stay bearing plate and hinge; be pressed into lining on the spring perch and fix with stop screw; supporting mass is housed on shift rod; seal ring; pad; insulating cove; part such as main spring and the bench insulator main spring seat of packing into together blocks supporting mass with circlip for bore again.

2, according to the described trolley head buffering of claim 1 off-line preventer, it is characterized in that the fork-shaped positioning plate is contained in the groove of shift rod, one of fender is contained on the hinge, and one is contained on the fork-shaped positioning plate, and shifting bar and guard bar move up and down synchronously.

3, according to claim 1,2 described trolley heads buffering off-line preventers, it is characterized in that shift rod makes of alloy steel, insulating cove, bench insulator are made of insulating material, and spring is made with spring steel.