CN217920884U

CN217920884U - Automatic wire rewinding device for rail car

Info

Publication number: CN217920884U
Application number: CN202222269648.1U
Authority: CN
Inventors: 何圣斌; 张明波
Original assignee: Tianjin Botaitianyu Technology Development Co ltd
Current assignee: Tianjin Botaitianyu Technology Development Co ltd
Priority date: 2022-08-26
Filing date: 2022-08-26
Publication date: 2022-11-29
Anticipated expiration: 2032-08-26

Abstract

The utility model discloses an automatic spooler for railcar, the on-line screen storage device comprises a base, the base assembly is on the railcar, still including the supporting mechanism who is used for as the spooler cylinder, be used for receiving and releasing the winding mechanism of line operation, be used for carrying out the reciprocating mechanism of even rolling to the cable and be used for carrying out the guiding mechanism that leads to the cable, the supporting mechanism is located base upper end one side, winding mechanism are located the supporting mechanism inboard, and reciprocating mechanism is located base upper end middle part, guiding mechanism are located one side of winding mechanism is kept away from to the base, the beneficial effects of the utility model are that simple structure is equipped with winding mechanism and reciprocating mechanism cooperation, can carry out even rolling to the cable, avoids the cable phenomenon that the winding was knoed to can prevent effectively that outer cable and shell from producing the friction, promote the life of spooler, be equipped with guiding mechanism, can lead to the cable, guarantee that the position of being qualified for the next round of competitions does not change along with reciprocating mechanism's action.

Description

Automatic wire winding device for rail car

Technical Field

The utility model belongs to the technical field of receive and releases the line technique and specifically relates to an automatic spooler for railcar is related to.

Background

In prior art, the receipts pay-off that exists on the market is mostly the manual control mode, the receipts line action and the unwrapping wire action of receiving and releasing the line device are realized through the manual operation of user promptly, the manual mode need consume a large amount of manpowers, control mode is single, and the speed of cable receipts unwrapping wire needs control, the winding of easily knoing of cable, great reduction the life of cable, work efficiency is very low, can not satisfy people's user demand, consequently, many automatic devices of receiving and releasing the line have come into play to fortune. However, when the take-up and pay-off device in the prior art performs take-up operation, the phenomenon that the outer layer cable protrudes out of the edge of the take-up reel due to the fact that the number of layers wound by the cable is too large is caused, the distance between the side wall of the outer shell of the take-up device and the take-up reel is short, and then the phenomenon that friction may occur between the outer layer cable and the outer shell is caused, so that the cable is broken, and the service life of the take-up device is shortened.

The application numbers are: 202010650453.4's chinese utility model discloses an automatic winding and unwinding devices, including controlling 2 installation curb plates and passing through standard section bar concatenation form equipment, reel axle unit mount is on controlling two installation curb plates, line ball unit mount is on the board of both sides, act on the drum axle subassembly, wire assembly installs on the lead screw, be reciprocating motion on the lead screw, reciprocating lead screw installs on 2 curb plates, actuating mechanism installs on the board of right side, scram and shift knob, install on the board of right side installation, start winder power and emergency protection effect, socket interface connects the power cord, the universal wheel is installed in the device bottom. However, although this kind of automatic pay-off and take-up device's control mode is many, its structure is comparatively complicated at that time, and because its structure of being qualified for the next round of competitions can carry out reciprocating motion along with the lead screw, lead to its position of being qualified for the next round of competitions to be unable fixed, can't carry out the straight line at the uniform velocity and be qualified for the next round of competitions, can't use in the condition that needs the straight line wiring, the application scene is limited, and it can only be applicable to the cable of single specification, can't adjust outlet wire speed and reel rotational speed according to the specification of cable, the in service behavior is comparatively single, and after its wiring, it can't carry out automatic receipts through self structure to the cable and restraint, can only rely on external force to carry out the operation of receiving, degree of automation is lower.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing an automatic spooler for railcar.

In order to achieve the above object, the present invention provides a technical solution:

the utility model provides an automatic spooler for railcar, includes the base, the base assembly is on the railcar, still including the supporting mechanism that is used for as the spooler cylinder, is used for receiving and releasing the winding mechanism of line operation, is used for carrying out the reciprocating mechanism of even rolling to the cable and is used for carrying out the guiding mechanism that leads to the cable, and the supporting mechanism is located base upper end one side, winding mechanism are located the supporting mechanism inboard, and reciprocating mechanism is located base upper end middle part, guiding mechanism are located one side of winding mechanism is kept away from to the base.

The supporting mechanism comprises a supporting base and two supporting side plates, wherein the supporting base is arranged on one side of the upper end of the base and fixedly connected with the base, and the two supporting side plates are symmetrically arranged at two ends of the upper portion of the supporting base and fixedly connected with the supporting base.

Winding mechanism includes rolling support, rolling protection casing, rolling axle and wind-up roll, the rolling support with the rolling protection casing sets up side by side the interval the support base's upper end both sides and with support base fixed connection, the wind-up axle sets up the rolling support and the upper portion of rolling protection casing and its both ends pass through the bearing respectively with the rolling support with the rolling protection casing rotates to be connected, the both ends of wind-up axle are outstanding respectively in the rolling support with the rolling protection casing, the wind-up roll sets up the middle part of rolling axle and with wind-up axle fixed connection.

The both ends of wind-up roll all are coaxial to be equipped with the protection sideboard, and the diameter of protection sideboard is greater than the diameter of wind-up roll.

Reciprocating mechanism includes reciprocal lead screw, reciprocal sliding block and reciprocal leading wheel, reciprocal lead screw is equipped with two sets ofly, and is two sets of reciprocal lead screw sets up at the interval side by side the upper portion of base and its both ends pass through the bearing with the base rotates to be connected, reciprocal sliding block sets up two sets of the middle part of reciprocal lead screw and with reciprocal lead screw sliding connection, reciprocal leading wheel sets up the lower part of reciprocal sliding block and through the bearing with reciprocal sliding block rotates to be connected, the lateral part of reciprocal leading wheel corresponds the cable and is equipped with the recess.

Still include reciprocal gag lever post, reciprocal gag lever post corresponds reciprocal leading wheel sets up the inboard lower part of base and its both ends with base fixed connection, reciprocal leading wheel pass through the bearing with reciprocal gag lever post sliding connection.

Guiding mechanism includes direction passageway and guiding installation board, the direction passageway sets up the inboard one end of keeping away from winding mechanism of base and with base fixed connection, the direction passageway corresponds reciprocal leading wheel level and sets up, the guiding installation board sets up the upper portion of direction passageway and its both sides with base fixed connection.

Still include coil spring mechanism, coil spring mechanism includes coil spring back shaft, reset coil spring and coil spring protection casing, the coil spring back shaft sets up one of them inboard and its one end of supporting the sideboard with support the sideboard and rotate and be connected, the coil spring back shaft with the coaxial setting of rolling axle, the coil spring back shaft is close to the one end of rolling axle through drive mechanism with the rolling axle transmission is connected, reset coil spring is equipped with two sets ofly, two sets of reset coil spring set up side by side in the middle part of coil spring back shaft and with coil spring back shaft fixed connection, the coil spring protection casing corresponds two sets of the reset coil spring and is equipped with two sets ofly, two sets of the coil spring protection casing covers respectively and establishes in two sets of the outside of reset coil spring.

Drive mechanism includes transmission shaft, transmission fluted disc and transmission fluted disc, the transmission shaft corresponds coil spring back shaft and the rolling axle sets up the lower part of rolling protection casing and through the bearing with the rolling protection casing rotates to be connected, the both ends of transmission shaft pass through the gear respectively with the coil spring back shaft and the rolling axle transmission is connected, the middle part of transmission shaft is equipped with the connection fluted disc, the transmission fluted disc corresponds to be connected the fluted disc setting at reciprocating mechanism's one end and through the bearing with the base rotates to be connected, the transmission fluted disc passes through the drive key and one set of wherein the tip transmission of reciprocal lead screw is connected, the transmission fluted disc is established drive fluted disc and the outside of being connected the fluted disc and with the meshing of transmission fluted disc and connection fluted disc is connected, the transmission shaft through connecting the fluted disc and the transmission fluted disc with the transmission of transmission fluted disc is connected.

Still include the shell, the shell cover is established the outside of supporting the sideboard and with support sideboard fixed connection, winding mechanism, coil spring mechanism and drive mechanism all are located the shell is inboard.

The beneficial effects of the utility model are that:

simple structure, be equipped with supporting mechanism, can provide stable installation for winding mechanism and support, structural stability is good, be equipped with winding mechanism and reciprocating mechanism cooperation, can carry out even rolling to the cable, avoid the cable phenomenon that the winding was knotd to appear, and can prevent effectively that outer cable from producing the friction with the shell, promote the life of spooler, be equipped with guiding mechanism, can lead to the cable, guarantee that the position at the position of being qualified for the next round of competitions does not change along with reciprocating mechanism's action, can carry out the straight line and be qualified for the next round of competitions at the uniform velocity, be equipped with drive mechanism in addition, can adjust winding mechanism's drive ratio, thereby be applicable to the cable of multiple specification, be equipped with the coil spring structure, can carry out automatic receipts bundle to the cable through the coil spring structure, and degree of automation is high.

Drawings

FIG. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a schematic view of the supporting mechanism and the base of the present invention;

fig. 3 is a schematic diagram of the coil spring mechanism and the transmission mechanism of the present invention.

In the figure: 1. a base; 2. a support base; 3. supporting the side plate; 4. winding a support; 5. rolling the protective cover; 6. a winding shaft; 7. a wind-up roll; 8. a protective edge plate; 9. a reciprocating screw rod; 10. a reciprocating slider; 11. a reciprocating guide wheel; 12. a reciprocating limiting rod; 13. a guide channel; 14. a guide mounting plate; 15. a coil spring supporting shaft; 16. a return coil spring; 17. a coil spring shield; 18. a drive shaft; 19. a transmission fluted disc; 20. a drive toothed belt; 21. a housing.

Detailed Description

The invention will be described in further detail with reference to the accompanying drawings,

the utility model provides an automatic spooler for railcar, includes base 1, and base 1 assembles on the railcar, still including the supporting mechanism that is used for as the spooler cylinder, be used for receiving and releasing the winding mechanism of line operation, be used for carrying out the reciprocating mechanism of even rolling and be used for carrying out the guiding mechanism that leads to the cable, and supporting mechanism is located 1 upper end one side of base, and winding mechanism is located the supporting mechanism inboard, and reciprocating mechanism is located 1 upper end middle part of base, and guiding mechanism is located one side that winding mechanism was kept away from to base 1, the utility model discloses the overall structure schematic diagram is as shown in FIG. 1.

The supporting mechanism includes supporting pedestal 2 and support sideboard 3, supporting pedestal 2 set up in 1 upper end one side of base and with 1 fixed connection of base, support sideboard 3 is equipped with two, two 3 symmetries of support sideboard set up at the upper portion both ends of supporting pedestal 2 and with 2 fixed connection of supporting pedestal, supporting mechanism passes through supporting pedestal 2 and support sideboard 3 cooperation, for winding mechanism provides stable erection bracing, wherein, supporting pedestal 2 is used for providing erection bracing for supporting sideboard 3 and winding mechanism, thereby support sideboard 3 is used for constituting bearing structure jointly with supporting pedestal 2 and provides erection bracing for winding mechanism, the utility model discloses supporting mechanism and 1 cooperation sketch map of base are as shown in FIG. 2.

The winding mechanism comprises a winding support 4, a winding protective cover 5, a winding shaft 6 and a winding roller 7, the winding support 4 and the winding protective cover 5 are arranged on two sides of the upper end of the supporting base 2 side by side at intervals and are fixedly connected with the supporting base 2, the winding shaft 6 is arranged on the upper portions of the winding support 4 and the winding protective cover 5, two ends of the winding shaft 6 are respectively and rotatably connected with the winding support 4 and the winding protective cover 5 through bearings, two ends of the winding shaft 6 protrude out of the winding support 4 and the winding protective cover 5 respectively, the winding roller 7 is arranged in the middle of the winding shaft 6 and is fixedly connected with the winding shaft 6, the winding mechanism is matched with the winding shaft 6 and the winding roller 7 through the winding support 4, the winding protective cover 5 and the winding roller 7, installation support is provided for cables, and winding and unwinding operations are performed, wherein the winding support 4 and the winding protective cover 5 are used for providing installation support for two ends of the winding shaft 6, the winding shaft 6 is used for providing installation support for the winding roller 7 and rotatably connecting the winding roller 7 with the winding support and unwinding supports for cables.

The both ends of wind-up roll 7 are all coaxial to be equipped with protection sideboard 8, and the diameter of protection sideboard 8 is greater than the diameter of wind-up roll 7, and protection sideboard 8 is used for preventing that the cable on the wind-up roll 7 from droing from wind-up roll 7.

The reciprocating mechanism comprises reciprocating screw rods 9, reciprocating sliding blocks 10 and reciprocating guide wheels 11, wherein the reciprocating screw rods 9 are provided with two groups, the two groups of reciprocating screw rods 9 are arranged on the upper portion of a base 1 side by side at intervals, two ends of the reciprocating screw rods 9 are rotatably connected with the base 1 through bearings, the reciprocating sliding blocks 10 are arranged in the middle of the two groups of reciprocating screw rods 9 and are slidably connected with the reciprocating screw rods 9, the reciprocating guide wheels 11 are arranged on the lower portion of the reciprocating sliding blocks 10 and are rotatably connected with the reciprocating sliding blocks 10 through bearings, grooves are formed in the side portions of the reciprocating guide wheels 11 corresponding to cables, the reciprocating mechanism is matched with the reciprocating screw rods 9, the reciprocating sliding blocks 10 and the reciprocating guide wheels 11 to reciprocate in the working process, the cables are uniformly distributed on the side surfaces of a winding roller 7, and knotting or winding of the cables in the winding and unwinding process is prevented, wherein the reciprocating screw rods 9 are used for providing sliding supports for the reciprocating screw rods 10, the reciprocating sliding blocks 10 are used for providing mounting supports for the reciprocating guide wheels 11 and driving the reciprocating guide wheels 11 to reciprocate under the action of the reciprocating screw rods 10, and the reciprocating guide wheels 11 on the side surfaces of the winding rollers 7 uniformly distributed on the side surfaces of the cables.

Still including reciprocal gag lever post 12, reciprocal gag lever post 12 corresponds reciprocal leading wheel 11 and sets up in the inboard lower part of base 1 and its both ends and base 1 fixed connection, and reciprocal leading wheel 11 passes through bearing and reciprocal gag lever post 12 sliding connection, and wherein, reciprocal gag lever post 12 is used for providing spacing support for reciprocal leading wheel 11, prevents that skew from appearing in the reciprocal leading wheel 11 of working process.

The guiding mechanism comprises a guiding channel 13 and a guiding mounting plate 14, the guiding channel 13 is arranged at one end of the inner side of the base 1 far away from the winding mechanism and is fixedly connected with the base 1, the guiding channel 13 is horizontally arranged corresponding to the reciprocating guide wheel 11, the guiding mounting plate 14 is arranged on the upper portion of the guiding channel 13 and fixedly connected with the base 1 at two sides of the guiding channel, the guiding channel 13 is formed by assembling two symmetrically arranged guiding blocks, the guiding mechanism guides the cable through the cooperation of the guiding channel 13 and the guiding mounting plate 14, the outlet position of the cable is prevented from changing along with the movement of the reciprocating guide wheel 11, wherein the guiding channel 13 is used for guiding the cable, and the guiding mounting plate 14 is used for installing the guiding channel 13 at one side of the base 1.

Still include the disc spring mechanism, the disc spring mechanism includes disc spring back shaft 15, reset disc spring 16 and disc spring protection casing 17, disc spring back shaft 15 sets up the inboard of one of them support sideboard 3 and its one end is connected with supporting sideboard 3 rotation, disc spring back shaft 15 and take-up shaft 6 coaxial arrangement, disc spring back shaft 15 is close to the one end of take-up shaft 6 and is connected with take-up shaft 6 transmission through drive mechanism, reset disc spring 16 is equipped with two sets ofly, two sets of reset disc spring 16 set up side by side in the middle part of disc spring back shaft 15 and with disc spring back shaft 15 fixed connection, disc spring protection casing 17 corresponds two sets of reset disc spring 16 and is equipped with two sets ofly, two sets of disc spring protection casings 17 cover respectively and establish the outside at two sets of reset disc spring 16, the disc spring structure passes through disc spring back shaft 15, reset disc spring 16 and disc spring protection casing 17 cooperation, carry out automatic receipts line operation to the cable after the external force disappears, wherein, disc spring back shaft 15 is used for providing the installation support for reset disc spring 16, reset disc spring 16 drives back spring 15 to rotate through its own elasticity, thereby drive reciprocating mechanism work, thereby carry out automatic receipts line operation to the cable, prevent reset disc spring 16 with reset disc spring, the cooperation of blocking the utility model is shown in the utility model with the mechanism.

The transmission mechanism comprises a transmission shaft 18, a transmission fluted disc 19 and a transmission toothed belt 20, wherein the transmission shaft 18 is arranged at the lower part of the winding protection cover 5 corresponding to the coil spring support shaft 15 and the winding shaft 6 and is rotatably connected with the winding protection cover 5 through a bearing, two ends of the transmission shaft 18 are respectively in transmission connection with the coil spring support shaft 15 and the winding shaft 6 through gears, a connection fluted disc is arranged in the middle of the transmission shaft 18, the transmission fluted disc 19 is arranged at one end of the reciprocating mechanism corresponding to the connection fluted disc and is rotatably connected with the base 1 through a bearing, the transmission fluted disc 19 is in transmission connection with the end part of one set of reciprocating screw rods 9 through a transmission key, the transmission toothed belt 20 is sleeved outside the transmission fluted disc 19 and the connection fluted disc and is in meshing connection with the transmission fluted disc 19 and the connection fluted disc, the transmission shaft 18 is in transmission connection with the transmission fluted disc 19 through the connection fluted disc and the transmission toothed belt 20, the transmission mechanism is in transmission connection with the coil spring mechanism and the reciprocating mechanism through the transmission shaft 18, the transmission fluted disc 19 and the transmission toothed belt 20, wherein the transmission shaft 18 is used for connecting the coil spring with the winding mechanism and the reciprocating mechanism.

Still include shell 21, shell 21 cover establish support sideboard 3 the outside and with support sideboard 3 fixed connection, winding mechanism, disc spring mechanism and drive mechanism all are located shell 21 inboardly, and wherein, shell 21 is used for constituting closed shell structure jointly with protection sideboard 8 and provides the protection for the spooler.

Wherein, the one end of automatic spooler is equipped with the connecting piece, and the connecting piece carries out the transmission with transmission shaft 18 and is connected automatic spooler and drive device through the connecting piece to realize automatic receipts and releases the line operation.

The working principle is as follows:

one end of a cable extends out of the automatic wire rewinding device through the guide channel 13 along a groove on the reciprocating guide wheel 11, when wiring is conducted, the cable extends out of the automatic wire rewinding device along the guide channel 13, when wire is unwound, the reciprocating sliding block 10 drives the reciprocating guide wheel 11 to reciprocate along the reciprocating lead screw 9, the winding roller 7 rotates three times under the action of the transmission mechanism, the reciprocating mechanism acts for one cycle, and therefore wiring accuracy of the wire rewinding device is guaranteed.

The beneficial effects of the utility model are that simple structure, be equipped with supporting mechanism, can provide stable installation support for winding mechanism, structural stability is good, be equipped with winding mechanism and reciprocating mechanism cooperation, can carry out even rolling to the cable, avoid the cable phenomenon that the winding was knoed, and can prevent effectively that outer cable and shell from producing the friction, promote the life of spooler, be equipped with guiding mechanism, can lead to the cable, the position of guaranteeing to be qualified for the next round of competitions does not change along with reciprocating mechanism's action, can carry out the straight line and be qualified for the next round of competitions at the uniform velocity, be equipped with drive mechanism in addition, can adjust winding mechanism's drive ratio, thereby be applicable to the cable of multiple specification, be equipped with the disc spring structure, can carry out automatic receipts to the cable through the disc spring structure, degree of automation is high.

While one embodiment of the present invention has been described in detail, the present invention is only a preferred embodiment of the present invention, and should not be construed as limiting the scope of the present invention. All the equivalent changes and improvements made according to the application scope of the present invention should still fall within the patent coverage of the present invention.

Claims

1. The utility model provides an automatic spooler for railcar, includes base (1), base (1) assembly is on the railcar, its characterized in that, still including the supporting mechanism who is used for as the spooler cylinder, be used for receiving and releasing the winding mechanism of line operation, be used for carrying out the reciprocating mechanism of even rolling to the cable and be used for carrying out the guiding mechanism that leads to the cable, supporting mechanism is located base (1) upper end one side, winding mechanism are located the supporting mechanism inboard, and reciprocating mechanism is located base (1) upper end middle part, guiding mechanism are located one side that winding mechanism was kept away from to base (1).

2. The automatic wire rewinding device for the rail car according to claim 1, characterized in that the supporting mechanism comprises a supporting base (2) and two supporting side plates (3), wherein the supporting base (2) is disposed on one side of the upper end of the base (1) and is fixedly connected to the base (1), and the two supporting side plates (3) are symmetrically disposed on two ends of the upper portion of the supporting base (2) and are fixedly connected to the supporting base (2).

3. The automatic rewinding device for the railway vehicle as claimed in claim 2, wherein the rewinding mechanism comprises a rewinding support (4), a rewinding protective cover (5), a rewinding shaft (6) and a rewinding roller (7), the rewinding support (4) and the rewinding protective cover (5) are arranged on two sides of the upper end of the supporting base (2) side by side at intervals and are fixedly connected with the supporting base (2), the rewinding shaft (6) is arranged on the upper portions of the rewinding support (4) and the rewinding protective cover (5) and two ends of the rewinding shaft are respectively rotatably connected with the rewinding support (4) and the rewinding protective cover (5) through bearings, two ends of the rewinding shaft (6) protrude out of the rewinding support (4) and the rewinding protective cover (5), and the rewinding roller (7) is arranged in the middle of the rewinding shaft (6) and is fixedly connected with the rewinding shaft (6).

4. An automatic rewinding machine for railcars according to claim 3, characterized in that both ends of said rewinding roller (7) are coaxially provided with a protective edge plate (8), the diameter of said protective edge plate (8) being greater than the diameter of said rewinding roller (7).

5. The automatic wire rewinding device for the railway vehicle as claimed in claim 3, wherein said reciprocating mechanism comprises two sets of reciprocating lead screws (9), two sets of reciprocating sliding blocks (10) and two reciprocating guide wheels (11), said two sets of reciprocating lead screws (9) are arranged on the upper portion of said base (1) side by side at intervals and both ends of said reciprocating lead screws (9) are rotatably connected with said base (1) through bearings, said reciprocating sliding blocks (10) are arranged in the middle of said two sets of reciprocating lead screws (9) and are slidably connected with said reciprocating lead screws (9), said reciprocating guide wheels (11) are arranged on the lower portion of said reciprocating sliding blocks (10) and are rotatably connected with said reciprocating sliding blocks (10) through bearings, and the side portions of said reciprocating guide wheels (11) are provided with grooves corresponding to the cables.

6. The automatic wire rewinding device for the rail car according to claim 5, further comprising a reciprocating limiting rod (12), wherein said reciprocating limiting rod (12) is disposed at the lower portion of the inner side of said base (1) corresponding to said reciprocating guide wheel (11) and both ends of said reciprocating limiting rod are fixedly connected to said base (1), and said reciprocating guide wheel (11) is slidably connected to said reciprocating limiting rod (12) through a bearing.

7. The automatic wire rewinding device for the rail car according to claim 6, characterized in that the guiding mechanism comprises a guiding channel (13) and a guiding mounting plate (14), the guiding channel (13) is disposed at one end of the inner side of the base (1) far away from the winding mechanism and is fixedly connected with the base (1), the guiding channel (13) is horizontally disposed corresponding to the reciprocating guide wheel (11), and the guiding mounting plate (14) is disposed at the upper portion of the guiding channel (13) and is fixedly connected with the base (1) at two sides thereof.

8. An automatic wire rewinding device for a railway vehicle as claimed in claim 7, further comprising a coil spring mechanism including a coil spring support shaft (15), a return coil spring (16) and a coil spring shield (17), said coil spring support shaft (15) being disposed inside one of said support side plates (3) and one end thereof being rotatably connected to said support side plate (3), said coil spring support shaft (15) being disposed coaxially with said rewinding shaft (6), one end of said coil spring support shaft (15) near said rewinding shaft (6) being drivingly connected to said rewinding shaft (6) through a transmission mechanism, said return coil spring (16) being provided in two sets, two sets of said return coil springs (16) being disposed side by side in the middle of said coil spring support shaft (15) and being fixedly connected to said coil spring support shaft (15), said coil spring shield (17) being provided in two sets corresponding to said two sets of said return coil springs (16), said two sets of said shield (17) being respectively disposed outside said return coil springs (16).

9. The automatic wire rewinding device for railway vehicles according to claim 8, characterized in that the transmission mechanism comprises a transmission shaft (18), a transmission toothed disc (19) and a transmission toothed belt (20), the transmission shaft (18) is disposed at the lower portion of the winding protection cover (5) corresponding to the coil spring support shaft (15) and the winding shaft (6) and is rotatably connected to the winding protection cover (5) through a bearing, two ends of the transmission shaft (18) are respectively rotatably connected to the coil spring support shaft (15) and the winding shaft (6) through gears, a connection toothed disc is disposed at the middle portion of the transmission shaft (18), the transmission toothed disc (19) is disposed at one end of the reciprocating mechanism corresponding to the connection toothed disc and is rotatably connected to the base (1) through a bearing, the transmission toothed disc (19) is rotatably connected to one of the sets of the reciprocating shafts (9) through a transmission key, the transmission toothed belt (20) is disposed at the outer side of the transmission toothed disc (19) and the connection toothed disc and is connected to the transmission toothed disc (19) and the connection toothed disc (19) through a transmission screw, and the transmission toothed belt (18) is connected to the transmission toothed disc (20).

10. An automatic wire rewinding device for a railway vehicle according to claim 9, further comprising a housing (21), wherein said housing (21) covers the outside of said supporting side plate (3) and is fixedly connected to said supporting side plate (3), and the winding mechanism, the coil spring mechanism and the transmission mechanism are located inside said housing (21).