CN203126548U

CN203126548U - Lifting-resetting device for current collector

Info

Publication number: CN203126548U
Application number: CN 201320175079
Authority: CN
Inventors: 张宇; 陈建伏
Original assignee: XIANGTAN CITY HENGLI ELECTROMECHANICAL CO Ltd
Current assignee: XIANGTAN CITY HENGLI ELECTROMECHANICAL CO Ltd
Priority date: 2013-04-09
Filing date: 2013-04-09
Publication date: 2013-08-14
Anticipated expiration: 2023-04-09

Abstract

The utility model discloses a lifting-resetting device for a current collector. The lifting-resetting device for the current collector comprises a current-collecting arm supporting seat and a bearing seat installed on the current-collecting arm supporting seat; a cover cap is fixed on the bearing seat, a shifting fork shaft is installed on the bearing seat and the cover cap through a first bearing and a second bearing, a ratchet wheel, a shifting fork disc and a shifting fork chuck are arranged on the shifting fork shaft in sequence, the shifting fork disc is positioned between the ratchet wheel and the shifting fork chuck, the shifting fork disc is connected with a pull rod of a return spring on the bearing seat through the return spring, a second pawl and a second elastic sheet are arranged on the shifting fork disc and adjacent to the ratchet wheel side, the second elastic sheet is pressed on the second pawl, the second pawl is meshed with the ratchet wheel, a first elastic sheet is pressed on a first pawl, and the first pawl is meshed with the ratchet wheel; a groove at the lower part of the shifting fork disc is meshed with fork teeth at the end part of a shifting fork, and the fork teeth at the end part of the shifting fork are positioned below the shifting fork chuck; and the shifting fork is installed on a square shaft of the current-collecting arm supporting seat. The lifting-resetting device for the current collector is simple to manufacture and process, low in cost, simple and convenient to operate, convenient and safe; and the lifting-resetting device for the current collector also has the advantages of reliability in operation and high performance cost ratio.

Description

A kind of pantagraph current collector hoisting device

Technical field

The utility model is related to a kind of pantagraph current collector hoisting device, when more particularly to a kind of Subway rolling stocks hinder out of service for some reason so that the pantagraph current collector hoisting device of vehicle derailing high pressure.

Background technology

The underground railway track electric vehicle of high-tension electricity is supplied by the 3rd rail, high-voltage great-current is received from three rails, be that automotive power powers is pantagraph current collector, there are multiple pantagraph current collectors to work during a train operation.Vehicle electrical systems and pantagraph current collector are in longtime running it some times happens that failure, when a failure occurs, it is necessary to give vehicle power-off, or the single pantagraph current collector for stopping damaging works.This is accomplished by parking and pantagraph current collector conductive slider is departed from into three rails, otherwise can cause impacting with high pressure avd interval, causes section circuit to power off, or even fire, has a strong impact on regular link operation.In order to prevent such accident to occur, multiple, three rails of disengaging are also often played to pantagraph current collector conductive slider sometimes in platform, check whether the abrasion of conductive slider and other parts are normal.

The currently known rail pantagraph current collector hoisting device of subway three operates in hole in the ground to subway and usability is poor under platform particular surroundings operating mode, particularly arrive at a station sometimes parking, need to be to pantagraph current collector inspection, and the gap of railway car and platform is very narrow, check or to exclude pantagraph current collector failure, it is necessary to which conductive slider and the 3rd rail depart from（Power-off）When, attendant needs bending to stretch to hand under compartment, conductive slider is derailed with special spanner operation hoisting device, laborious, dangerous, it is impossible to convenient rapid that conductive slider is multiple.

Utility model content

In order to solve the above-mentioned technical problem, the utility model provides a kind of pantagraph current collector hoisting device so that when vehicle breaks down in operation, can separate safely, quickly with the 3rd rail.

The technical solution adopted in the utility model is：Including the bearing block by stream arm support base and on by stream arm support base；It is fixed with described bearing block in cover lid, bearing block and is provided with clutch shaft bearing, end face is provided with the first ratchet and the first shell fragment；Second bearing is provided with cover lid, clutch shaft bearing and second bearing are arranged on the two ends of shift fork axle, ratchet, shifting fork disc and shift fork chuck are sequentially provided with shift fork axle, shifting fork disc is connected by return spring with the return spring pull bar on bearing block, the second ratchet and the second shell fragment are provided with close to ratchet side on shifting fork disc, the second shell fragment compresses the second ratchet, and the second ratchet is engaged with ratchet, the first described shell fragment compresses the first ratchet, and the first ratchet is engaged with ratchet；Described shifting fork disc lower recess is engaged with the prong of shift fork end, and the latch of shift fork end is located at immediately below shift fork chuck；Shift fork is arranged on by the square shaft on stream arm support base.In above-mentioned pantagraph current collector hoisting device, described cover is covered is provided with stop close to the side of shift fork chuck.

The beneficial effects of the utility model are：The utility model manufacture processing is simple, low cost, and easy to operate, convenient and safe；Complete conductive slider and depart from three rails, stand directly to be hooked with insulated hook using vehicle and platform close clearance in platform is pulled upwardly to upper limit by stream arm, that is, is completed pantagraph current collector and separated power operation with the 3rd rail.After inspection or failture evacuation, need rapidly to close conductive slider with the 3rd rail again, at this moment, as long as still directly hook power arm with insulated hook is pulled upwardly to upper limit to operator, by stream arm in the presence of pantagraph current collector main spring, with the rail of conductive slider automatic attaching three, that is, complete collector shoe sliding block and the 3rd rail contact work operating mode；The utility model also has the advantages that operation reliability, cost performance are high.

Brief description of the drawings

Fig. 1 is front view of the present utility model.

Fig. 2 is side view of the present utility model.

Fig. 3 is the front view of shifting fork disc of the present utility model.

Fig. 4 is the side view of shifting fork disc of the present utility model.

Fig. 5 is structural representation of the present utility model under pantagraph current collector operating mode.

Fig. 6 is that collector shoe sliding block departs from structural representation of the present utility model under three track-like states.

Fig. 7 is structural representation of the present utility model when being reached upper limit by stream arm.

Structural representation of the present utility model when Fig. 8 is arrival upper limit secondary by stream arm.

In figure：1, by stream arm, 2, by stream arm support base, 3, pantagraph current collector main spring, 4, square shaft, 5, ratchet, 6, adjust pad, 7, clutch shaft bearing, 8, dormant bolt, 9, shifting fork disc, 10, return spring, 11, shift fork chuck, 12, second bearing, 13, shift fork axle, 14, cover bonnet bolt, 15, cover lid, 16, return spring pull bar, 17, bearing block, 18, shift fork, 19, second ratchet, 20, second shell fragment, 21, stop, 22, the spacing adjustment bolt of shift fork, 23, spring hangs pin, 24, pin, 25, by stream arm support base, 26, resilient bearing, 27 sliding blocks, 28 first shell fragments, 29 first ratchets.

Embodiment

The utility model is further described below in conjunction with the accompanying drawings.

As shown in Figure 1 and Figure 2, the utility model includes the bearing block 17 by stream arm support base 2 and on by stream arm support base 25；Cover lid 15 is fixed with described bearing block 17, clutch shaft bearing 7 is provided with bearing block 17, end face is provided with the first ratchet 29 and the first shell fragment 28, second bearing 12 is provided with cover lid 15, clutch shaft bearing 7 and second bearing 12 are arranged on the two ends of shift fork axle 13, it is parallel between clutch shaft bearing 7 and second bearing 12 in shift fork axle 13 to be provided with ratchet 5, shifting fork disc 9 and shift fork chuck 11, described shifting fork disc 9 is located between ratchet 5 and shift fork chuck 11, and shifting fork disc 9 is connected by return spring 10 with the return spring pull bar 16 on bearing block 17.As shown in Figure 3,4, the second ratchet 19 and the second shell fragment 20 are provided with close to the side of ratchet 5 on shifting fork disc 9, the second shell fragment 20 compresses the second ratchet 19, and the second ratchet 19 is engaged with ratchet 5.The first described shell fragment 28 compresses the first ratchet 29, and the first ratchet 29 is engaged with ratchet 5；The groove of the described bottom of shifting fork disc 9 is engaged with the prong of the end of shift fork 18, and the latch of the end of shift fork 18 is located at the underface of shift fork chuck 11；Shift fork 18 is arranged on by the square shaft 4 on stream arm support base 2.

Application method of the present utility model is as follows：

Play multiple sliding block and take off boots operation：Shifting fork disc 9 is rotated in the presence of the upper shift fork prong of shift fork 18, while the second ratchet 19 and the collective effect of the second shell fragment 20 on shifting fork disc 9, drive ratchet 5 to rotate in same direction, shift fork chuck 11 is synchronized with the movement with ratchet 5, now reaches upper limit, as shown in Figure 7.Shift fork 18 is due to the effect of pantagraph current collector main spring 3, back pressure, latch on shift fork 18 falls on the latch of shift fork chuck 11, prevent shift fork 18 from return, the square shaft 4 that is linked with shift fork 18, by stream support base 2, by stream arm 1, sliding block 27 it is at high-end trim, three track-like states of multiple disengaging are namely played, as shown in Figure 6；In the process, when effect of the shift fork 18 due to the linkage square shaft 4 of pantagraph current collector main spring 3, during back pressure, shifting fork disc 9 can automatically return to original state in the presence of return spring 10.

Play multiple sliding block and reset operation：Shifting fork disc 9 rotates in the presence of the upper shift fork prong of shift fork 18, while the second ratchet 19 and the collective effect of the second shell fragment 20 on shifting fork disc 9, drive ratchet 5 to rotate in same direction, shift fork chuck 11 is synchronized with the movement with ratchet 5, now reaches upper limit, as shown in Figure 8.Shift fork 18 is due to the effect of pantagraph current collector main spring 3, latch on back pressure, shift fork 18 is continued traveling downwardly by neutral gear position on shift fork chuck 11, the square shaft 4 that is linked with shift fork 18, by stream support base 2, by stream arm 1, sliding block 27 working condition is just automatically reverted to, as shown in Figure 5；In the process, when effect linkage square shaft 4 of the shift fork 18 due to pantagraph current collector main spring 3, during back pressure, shifting fork disc 9 automatically returns to original state in the presence of return spring 10.

Attendant and maintainer's mode of operation：Hooked with insulated hook by stream arm 1, pull-up, linked by stream arm 1, by stream support base 2, square shaft 4, shift fork 18, shifting fork disc 9 is rotated in the presence of the upper shift fork prong of shift fork 18, the second ratchet 19 and the collective effect of the second shell fragment 20 on shifting fork disc 9, drive ratchet 5 to rotate in same direction, shift fork chuck 11 is synchronized with the movement with ratchet 5 simultaneously, upper limit is reached, as shown in Figure 7.Unclamp insulated hook, shift fork 18 is due to the effect of pantagraph current collector main spring 3, back pressure is descending, latch falls on the latch of shift fork chuck 11 on shift fork 18, prevent shift fork 18 from return, the square shaft 4 that is linked with shift fork 18, high-end trim is at by stream support base 2, by stream arm 1, sliding block 27, that is, plays three track-like states of multiple disengaging, as shown in Figure 6.When the back pressure of shift fork 18 is descending, shifting fork disc 9 can automatically return to original state in the presence of return spring 10.When maintenance is finished or after trouble shooting, hooked with insulated hook by stream arm 1, pull-up, linked by stream arm 1, by stream support base 2, square shaft 4, shift fork 18, shifting fork disc 9 is rotated in the presence of the upper shift fork prong of shift fork 18, while the second ratchet 19 and the collective effect of the second shell fragment 20 on shifting fork disc 9, ratchet 5 is driven to rotate in same direction, shift fork chuck 11 is synchronized with the movement with ratchet 5, reaches upper limit, as shown in Figure 8.Insulated hook is unclamped, shift fork 18 is due to the effect of pantagraph current collector main spring 3, and back pressure is descending, latch passes through neutral gear position on shift fork chuck 11 on shift fork 18, continue traveling downwardly, the square shaft 4 that is linked with shift fork 18, by stream support base 2, by stream arm 1, sliding block 27 just automatically revert to working condition, as shown in Figure 5；In the process, when the back pressure of shift fork 18 is descending, shifting fork disc 9 automatically returns to original state in the presence of return spring 10.

Claims

1. a kind of pantagraph current collector hoisting device, it is characterized in that：Including the bearing block by stream arm support base and on by stream arm support base；It is fixed with described bearing block in cover lid, bearing block and is provided with clutch shaft bearing, end face is provided with the first ratchet and the first shell fragment；Second bearing is provided with cover lid, clutch shaft bearing and second bearing are arranged on the two ends of shift fork axle, ratchet, shifting fork disc and shift fork chuck are sequentially provided with shift fork axle, shifting fork disc is connected by return spring with the return spring pull bar on bearing block, the second ratchet and the second shell fragment are provided with close to ratchet side on shifting fork disc, the second shell fragment compresses the second ratchet, and the second ratchet is engaged with ratchet, the first described shell fragment compresses the first ratchet, and the first ratchet is engaged with ratchet；Described shifting fork disc lower recess is engaged with the prong of shift fork end, and the latch of shift fork end is located at immediately below shift fork chuck；Shift fork is arranged on by the square shaft on stream arm support base.

2. pantagraph current collector hoisting device as claimed in claim 1, it is characterized in that：Described cover is covered is provided with stop close to the side of shift fork chuck.

3. pantagraph current collector hoisting device as claimed in claim 1, it is characterized in that：Adjust pad is provided between described ratchet and shifting fork disc.