CN113978319A

CN113978319A - Automatic installation device for railway contact net dropper

Info

Publication number: CN113978319A
Application number: CN202111482272.6A
Authority: CN
Inventors: 杜光月; 阮久宏; 苏现征
Original assignee: Shandong Jiaotong University
Current assignee: Shandong Jiaotong University
Priority date: 2021-12-07
Filing date: 2021-12-07
Publication date: 2022-01-28

Abstract

The invention discloses an automatic installation device for a hanger of a railway contact network, and belongs to the field of power equipment. Comprises a vertical bracket, a transverse fixed bracket and a movable bracket; the movable support is provided with an installation frame moving left and right and a lower motor base, the installation frame is provided with an integral clamping device moving up and down and used for clamping an inverted U-shaped connecting piece, a contact wire clamp and a lower bolt, and the lower motor base is connected with a lower socket wrench through a lower socket motor; the fixed support is provided with a U-shaped connecting piece clamping device moving left and right, a carrier cable wire clamping bin, an upper motor base moving left and right and a nut accommodating bin; the carrier cable wire clamping bin is provided with a pressing device for pressing and buckling the carrier cable wire clamp onto the carrier cable, and the upper motor base is connected with an upper socket wrench through an upper socket motor. The invention realizes the automatic installation of the railway contact net dropper, can be operated by only one worker, and has high installation speed and high efficiency.

Description

Automatic installation device for railway contact net dropper

Technical Field

The invention relates to the field of power equipment, in particular to an automatic installation device for a hanger of a railway contact network.

Background

The railway contact net mainly comprises a contact line, a carrier cable, a dropper, and supporting parts and insulating devices. As shown in fig. 1, the dropper 100 has an upper end connected to the messenger wire 200 and a lower end connected to the contact wire 300, which is a transmitter of force and vibration between the messenger wire and the contact wire, and the messenger wire keeps the contact wire at a certain horizontal position through the dropper, thereby facilitating the pantograph of the electrified railway train to slide on the contact wire to obtain electric energy.

The dropper 100 includes a dropper line 101, a messenger wire clamp 102, a contact wire clamp 103, a U-shaped connector 104, and an inverted U-shaped connector 105. The shape of the catenary wire clamp 102 is inverted U-shaped, the inverted U-shaped catenary wire clamp 102 is buckled on a catenary wire 200, the catenary wire clamp 102 is connected with the upper end of a U-shaped connecting piece 104 through an upper bolt 106, and the lower end of the U-shaped connecting piece 104 is connected with the upper end of a dropper wire 101. The contact wire clamp 103 is in an inverted U shape, a clamping opening 107 at the bottom end of the inverted U-shaped contact wire clamp 103 is clamped in a groove 301 of a contact wire 300, the contact wire clamp 103 is connected with the lower end of an inverted U-shaped connecting piece 105 through a lower bolt 108, and the upper end of the inverted U-shaped connecting piece 105 is connected with the lower end of a dropper wire 101.

The process of installing the railway contact net dropper is as follows:

the lower end of the U-shaped connecting piece 104 is sleeved on the sleeve ring 110 at the upper end of the dropper line 101, the inverted U-shaped catenary wire clamp 102 is buckled on the catenary wire 200, the catenary wire clamp 102 and the U-shaped connecting piece 104 are aligned, the upper bolt 106 is penetrated and screwed, and the connection of the dropper line 101 and the catenary wire 200 is completed.

The upper end of the inverted U-shaped connecting piece 105 is sleeved on a lantern ring 109 at the lower end of the dropper wire 101, the lower end of the inverted U-shaped connecting piece 105 is connected with a contact wire clamp 103 through a lower bolt 108, a clamping opening 107 is located at the position of a groove 301 of a contact wire 300, the lower bolt 108 is tightened, the clamping opening 107 is tightly clamped with the groove 301, and the connection of the dropper wire 101 and the contact wire 300 is completed.

The installation process of the railway contact net dropper is complex, can only be completely carried out by manpower at present, and because the catenary and the contact line are separated by a certain distance, the installation can not be completed by the same worker, the cooperation of a plurality of persons is needed, the installation speed is slow, the efficiency is low, and the manpower is wasted.

Disclosure of Invention

In order to solve the technical problems, the invention provides an automatic installation device for a hanger of a railway contact network, which realizes the automatic installation of the hanger of the railway contact network, and has high installation speed and high efficiency.

The technical scheme provided by the invention is as follows:

an automatic installation device for a hanger of a railway contact net comprises a hanger wire, a catenary wire clamp, a contact wire clamp, a U-shaped connecting piece, an inverted U-shaped connecting piece, an upper bolt and a lower bolt;

the automatic installation device for the dropper of the railway contact network comprises a vertical support, wherein a transverse fixed support and a transverse movable support are arranged on the vertical support, the fixed support is positioned above a carrier cable, the movable support is positioned below a contact wire, and the movable support is driven by a vertical motor to move up and down along the vertical support, wherein:

the movable support is provided with an installation frame and a lower motor base on the left side and the right side of the contact line respectively, the installation frame is driven by an installation frame motor to move left and right along the movable support, the installation frame is provided with an integral clamping device, the integral clamping device is used for clamping an integral structure formed by connecting the inverted U-shaped connecting piece, the contact line clamp and a lower bolt on one side, close to the contact line, of the installation frame, and the integral clamping device is driven by an integral clamping device motor to move up and down along the installation frame;

the lower motor base is driven by a lower horizontal motor to move left and right along the movable support, a lower sleeve motor is arranged on the lower motor base, and the lower sleeve motor is connected with a lower sleeve wrench facing the contact line;

the fixed support is provided with a U-shaped connecting piece clamping device, a carrier cable wire clamping bin, an upper motor base and a nut accommodating bin; the U-shaped connecting piece clamping device is positioned below the carrier cable and driven by a motor of the U-shaped connecting piece clamping device to move left and right along the fixed support; the carrier cable wire clamping bin is positioned above the carrier cable, and a pressing device for pressing and buckling the carrier cable wire clamp onto the carrier cable is arranged on the carrier cable wire clamping bin;

the nut holds the storehouse and the upper portion motor cabinet is located respectively the messenger wire left and right sides, the nut part of upper portion bolt is located the nut holds in the storehouse, the upper portion motor cabinet is followed under the drive of upper portion horizontal motor the fixed bolster removes about, be provided with upper portion socket motor on the upper portion motor cabinet, upper portion socket motor is connected with the orientation the upper portion box spanner of messenger wire, the nut and the screw rod part of upper portion bolt are installed on the box spanner of upper portion.

Furthermore, whole clamping device includes magnet and two grip blocks, two grip blocks are located one side that is close to the contact wire on the mounting bracket, two grip blocks are used for the centre gripping the front and back both sides of type of falling U connecting piece, magnet is located keep away from one side of contact wire on the mounting bracket, magnet is used for with type of falling U connecting piece adsorbs hugs closely one side that is close to the contact wire on the mounting bracket.

Furthermore, the clamping plate comprises a vertical part and a horizontal part positioned at the bottom of the vertical part, the vertical part is used for clamping the front side and the rear side of the inverted U-shaped connecting piece, the bottom end of the horizontal part is pressed at the top end of the contact wire clamp, and an arc-shaped groove matched with the top end of the contact wire clamp is formed in the bottom end of the horizontal part.

Further, the nut portion of the lower bolt is located in a vertical guide slot on the clamping plate, and the nut portion of the lower bolt faces and is aligned with the lower socket wrench.

Further, an integral clamping device motor base is arranged on one side, far away from the contact line, of the mounting frame, and the integral clamping device motor is mounted on the integral clamping device motor base and drives the integral clamping device motor base to move up and down along the mounting frame;

vertical slot holes are formed in the mounting frame, and the clamping plate is connected with the motor base of the whole clamping device through connecting bolts penetrating through the vertical slot holes.

Further, the movable support comprises a bottom plate and an upper mounting plate connected above the bottom plate and spaced by a certain distance from the bottom plate and parallel to the bottom plate, the mounting frame is mounted at the top end of the bottom plate, and the lower motor base is mounted at the bottom end of the upper mounting plate.

Further, U type connecting piece clamping device is including being used for the bearing the collet of U type connecting piece bottom and being used for the centre gripping the grip slipper of both sides around the U type connecting piece, the collet with the grip slipper links together, the grip slipper is connected with U type connecting piece clamping device motor cabinet, U type connecting piece clamping device motor is installed on the U type connecting piece clamping device motor cabinet and drive U type connecting piece clamping device motor cabinet is followed the fixed bolster removes about.

Further, be provided with the messenger wire holding tank of downward open-ended on the fixed bolster, the top is provided with the messenger wire leading wheel in the messenger wire holding tank, the outside expansion in the lower part left and right sides of messenger wire holding tank forms the type of falling Y structure, the groove of stepping down has all been seted up on the left and right sides of messenger wire holding tank.

Furthermore, wire clamp rods in the left-right direction are arranged in the messenger wire clamp bin, a plurality of messenger wire clamps penetrate through the wire clamp rods, and one ends of the wire clamp rods, far away from the messenger wires, can move up and down;

and one end of the wire clamp rod, which is far away from the catenary cable, moves upwards to convey one catenary cable clamp on the wire clamp rod to the position above the catenary cable, and the catenary cable clamp is pressed and buckled on the catenary cable through the pressing device.

Furthermore, the nut containing bin is vertically arranged, and the plurality of nut parts are vertically arranged in the nut containing bin.

The invention has the following beneficial effects:

the automatic installation device for the railway contact net dropper realizes the automatic installation of the railway contact net dropper, can be operated by only one worker, and has high installation speed and high efficiency.

Drawings

FIG. 1 is a schematic view of a railway catenary dropper;

fig. 2 is a schematic overall structure diagram of the automatic installation device of the railway contact net dropper of the invention;

FIG. 3 is a schematic view of the structure at the mobile bracket;

FIG. 4 is a schematic view of a side of the mounting bracket;

FIG. 5 is a schematic view of another side of the mounting bracket;

FIG. 6 is a schematic view of the structure at the fixed bracket;

FIG. 7 is a schematic view of FIG. 6 with the U-shaped connector clamping device removed;

FIG. 8 is a schematic view of another side of FIG. 7;

fig. 9 is a schematic view of the internal structure of the fixing bracket.

Detailed Description

In order to make the technical problems, technical solutions and advantages of the present invention more apparent, the following detailed description is given with reference to the accompanying drawings and specific embodiments.

Before explaining the present invention in detail, first, the front, rear, left, right, upper and lower directions are defined, and the directions shown in fig. 1 are used as the reference, and it should be noted that the directions defined in fig. 1 are only for convenience of describing the structure of the present invention and can be used as the limitation of the present invention.

An embodiment of the invention provides an automatic installation device for a railway contact net dropper, and as shown in fig. 1, the railway contact net dropper 100 applicable to the invention comprises a dropper line 101, a catenary wire clamp 102, a contact wire clamp 103, a U-shaped connecting piece 104, an inverted U-shaped connecting piece 105, an upper bolt 106 and a lower bolt 108.

As shown in fig. 2-9, the automatic installation device for the dropper of the railway contact network comprises a vertical support 1, wherein a transverse fixed support 2 and a transverse movable support 3 are arranged on the vertical support 1, the fixed support 2 is positioned above a catenary 200, the movable support 3 is positioned below a contact line 300, and the movable support 3 moves up and down along the vertical support 1 under the driving of a vertical motor 4.

The invention does not limit the specific implementation mode of driving the movable support 3 by the vertical motor 4, in one specific example, the vertical support 1 is provided with a vertical rack, the vertical motor 4 is arranged on the movable support 3, an output shaft of the vertical motor 4 is connected with a gear, and the gear is matched with the rack to realize the up-and-down movement of the movable support 3 along the vertical rack. The driving modes of other motors are similar and are not described in detail.

Be provided with mounting bracket 5 and lower part motor cabinet 6 respectively in the contact wire 300 left and right sides on movable support 3, the mounting bracket 5 moves about along movable support 3 under the drive of mounting bracket motor 7, be provided with whole clamping device 8 on mounting bracket 5, whole clamping device 8 is used for the overall structure centre gripping that becomes with type of falling U connecting piece 105, contact wire fastener 103 and lower part bolt 108 connection and is close to one side of contact wire 300 on mounting bracket 5, whole clamping device 8 reciprocates along mounting bracket 5 under the drive of whole clamping device motor 9.

The lower motor base 6 moves left and right along the movable support 3 under the driving of the lower horizontal motor 10, a lower sleeve motor 11 is arranged on the lower motor base 6, and the lower sleeve motor 11 is connected with a lower sleeve wrench 12 facing the contact line 300.

The fixed bracket 2 is provided with a U-shaped connecting piece clamping device 13, a carrier cable wire clamping bin 14, an upper motor base 15 and a nut accommodating bin 16; the U-shaped connecting piece clamping device 13 is positioned below the carrier cable 200, and the U-shaped connecting piece clamping device 13 moves left and right along the fixed support 2 under the driving of a motor 18 of the U-shaped connecting piece clamping device; the carrier cable wire clamping bin 14 is positioned above the carrier cable 200, and the carrier cable wire clamping bin 14 is provided with a pressing device 17 for pressing and buckling the carrier cable wire clamp 102 on the carrier cable 200.

The nut containing bin 16 and the upper motor base 15 are respectively located on the left side and the right side of the catenary 200, the nut portion 111 of the upper bolt 106 is located in the nut containing bin 16, the upper motor base 15 moves left and right along the fixed support 2 under the driving of the upper horizontal motor 19, the upper motor base 15 is provided with an upper sleeve motor 20, the upper sleeve motor 20 is connected with an upper sleeve wrench 21 facing the catenary 200, and the nut and screw portion 112 of the upper bolt 106 are installed on the upper sleeve wrench 21.

The using method of the invention is as follows:

step 1: the lower end of the U-shaped connector 104 is fitted over the collar 110 at the upper end of the dropper line 101 and the U-shaped connector 104 is clamped to the U-shaped connector clamp 13, the messenger wire clamp 102 is placed in the messenger wire clamp magazine 14 and the nut portion 111 of the upper bolt 106 is placed in the nut receiving magazine 16.

The upper end of the inverted U-shaped connecting piece 105 is sleeved on a lantern ring 109 at the lower end of the dropper wire 101, the lower end of the inverted U-shaped connecting piece 105 is connected with the contact wire clamp 103 through a lower bolt 108 (the lower bolt 108 is not screwed down), an integral structure is formed, and the integral structure is clamped through the integral clamping device 8.

A worker holds the vertical support 1 to move the whole automatic railway catenary dropper mounting device (either by a mechanical arm or a special working vehicle) so that the catenary wire 200 is positioned below the fixed support 2, the contact wire 300 is positioned above the movable support 3, and the contact wire 300 is positioned between the mounting frame 5 and the lower motor base 6.

Step 2: moving the movable support 3 to the contact line 300 through the vertical motor 4 until the bottom end of the contact line 300 is contacted with the top end of the movable support 3; then the mounting frame 5 is moved to the contact line 300 by the mounting frame motor 7 until the two contact; the integral clamping device is moved downwards by the integral clamping device motor 9 until the clamping opening 107 at the bottom end of the contact wire clamp 103 is aligned with the groove 301 of the contact wire, and at the moment, the lower socket wrench 12 is just aligned with the lower bolt 108; then, the lower motor base 6 is moved to the contact line 300 by the lower horizontal motor 10 until the lower socket wrench 12 is sleeved on the lower bolt 108; finally, the lower sleeve motor 11 is started, the lower bolt 108 is tightened, and the mounting connection of the dropper 100 and the contact wire 300 is completed.

In this step, each motor needs to move the part driven by the motor to a proper position, the proper position can be observed and judged by workers, and a limiting device can be arranged after the stroke is calculated in advance. For example, when the integral clamping device is moved downwards by the integral clamping device motor 9, a corresponding limiting device may be disposed on the mounting frame 5, so that the integral clamping device is moved to the limiting device and stops, and at this time, the clamping opening 107 at the bottom end of the contact wire clamp 103 is exactly aligned with the groove 301 of the contact wire; also, the position of the lower socket wrench 12 may be set in advance so that the lower socket wrench 12 is aligned with the lower bolt 108 when the entire clamping device is stopped. The limit of other motors in the step and the limit of the motor in the subsequent step 3 are similar, and the description is omitted.

And step 3: moving the U-shaped connector clamping device 13 to the catenary 200 through the U-shaped connector clamping device motor 18 until the U-shaped connector 104 is positioned under the catenary 200; the messenger wire clip 102 is then crimped down onto the messenger wire 200 by the hold down device 17 with the bolt holes on the U-shaped connector 104, the bolt holes on the messenger wire clip 102, the nut portion 111 of the upper bolt 106, and the nut and screw portion 112 of the upper bolt 106 properly aligned (this alignment can be achieved by pre-sizing the device); then the upper motor base 15 is moved towards the messenger wire 200 by the upper horizontal motor 19 until the nut and screw part 112 sleeved on the lower socket wrench 12 passes through the bolt holes of the U-shaped connecting piece 104 and the messenger wire clamp 102 to contact with the nut part 111; and finally, starting the upper sleeve motor 20, and screwing the upper bolt 106 to complete the installation and connection of the dropper 100 and the carrier cable 200.

The step 2 and the step 3 are not in a strict time sequence relationship, and the step 2 may be executed first, and then the step 3 is executed, or the step 3 may be executed first, and then the step 2 is executed, which is not limited in this invention.

The invention is not limited to the specific structure of the integral clamping device 8, in one example, the integral clamping device 8 includes a magnet 22 and two clamping

plates

23 and 24, the two clamping

plates

23 and 24 are located on one side of the mounting frame 5 close to the contact line 300, the two clamping

plates

23 and 24 are used for clamping the front side and the rear side of the inverted U-shaped connecting piece 105, the magnet 22 is located on one side of the mounting frame 5 far from the contact line 300, and the magnet 5 is used for attaching and tightly attaching the inverted U-shaped connecting piece 105 on one side of the mounting frame 5 close to the contact line 300.

The clamping

plates

23, 24 include vertical portions for clamping both sides of the inverted U-shaped connecting member 105 in the front and rear direction and horizontal portions located at the bottom of the vertical portions, the bottom ends of the horizontal portions are pressed against the top ends of the contact wire clamps 103, and the bottom ends of the horizontal portions are provided with arc-shaped grooves 25 which are matched with the top ends of the contact wire clamps 103.

The nut portion 113 of the lower bolt 108 is located in the vertical guide slot 26 on the clamping plate 5 and the nut portion 114 of the lower bolt 108 faces and aligns with the lower socket wrench 12.

The side of the mounting frame 5 far away from the contact line 300 is provided with an integral clamping device motor base 27, and the integral clamping device motor 9 is installed on the integral clamping device motor base 27 and drives the integral clamping device motor base 27 to move up and down along the mounting frame 5.

In order to facilitate the connection of the integral clamping device 8 and the integral clamping device motor 9, a vertical long hole 28 is formed in the mounting frame 5, and the

clamping plates

23 and 24 are connected with the integral clamping device motor base 27 through a connecting bolt 29 penetrating through the vertical long hole 28.

The movable support 3 comprises a bottom plate 30 and an upper mounting plate 31 which is connected above the bottom plate 30, is spaced from the bottom plate 30 by a certain distance and is parallel to the bottom plate 30, a mounting frame 5 is mounted at the top end of the bottom plate 30, and a lower motor base 6 is mounted at the bottom end of the upper mounting plate 31. By the bottom plate 30 and the upper mounting plate 31, the mounting space of the movable bracket 3 is increased, and the lower socket wrench 12 and the like on the lower motor mount 6 are more easily laid out so that the lower socket wrench 12 is aligned with the nut portion 114 of the lower bolt 108.

As an improvement of the embodiment of the present invention, the U-shaped connector clamping device 13 includes a bottom support 32 for supporting the bottom of the U-shaped connector 104 and clamping seats 33 for clamping the front and rear sides of the U-shaped connector 104, the bottom support 32 is connected to the clamping seats 33, the clamping seats 33 are connected to a U-shaped connector clamping device motor base 34, and the U-shaped connector clamping device motor 18 is mounted on the U-shaped connector clamping device motor base 34 and drives the U-shaped connector clamping device motor base 34 to move left and right along the fixed bracket 2.

For conveniently arranging the U-shaped connecting piece clamping device motor base 34 and the lower motor base 6, the U-shaped connecting piece clamping device motor base 34 is sleeved on the periphery of the lower motor base 6, and the U-shaped connecting piece clamping device motor base and the lower motor base are not in contact with each other and respectively move left and right along the fixed support 2.

The fixed bracket 2 may also be provided with a downwardly open messenger receiving channel 35 for receiving a messenger wire 200. The top in the messenger wire receiving groove 35 is provided with a messenger wire guide wheel 36 for positioning the messenger wire 200 so that the left and right positions thereof are fixed. The left and right sides of the lower part of the carrier cable accommodating groove 35 are expanded outwards to form an inverted Y-shaped structure 37, so that the carrier cable 200 is conveniently accommodated in the carrier cable accommodating groove 35. The left and right sides of the carrier cable accommodating groove 35 are provided with abdicating

grooves

38, 39 for the upper bolt 106 to pass through.

One or more messenger wire clamps 102 can be accommodated in the messenger wire clamp bin 14, when a plurality of messenger wire clamps 102 are accommodated, a wire clamp rod 40 in the left-right direction is arranged in the messenger wire clamp bin 14, the messenger wire clamps 102 penetrate through the wire clamp rod 40, and one end of the wire clamp rod 40, which is far away from the messenger wire 200, can move up and down in a vertical long hole.

One messenger wire clamp 102 on the clamp bar 40 is transported over the messenger wire 200 by moving the end of the clamp bar 40 away from the messenger wire 200 upward and the messenger wire clamp 102 is crimped down onto the messenger wire 200 by the hold-down device 17.

The nut accommodating chamber 16 can accommodate one or more nut portions 111 therein, when accommodating a plurality of nut portions 111, the nut accommodating chamber 16 is vertically arranged, the plurality of nut portions 111 are vertically arranged in the nut accommodating chamber 16, and after using one nut portion 111, the remaining nut portion 111 falls down under the action of gravity.

While the foregoing is directed to the preferred embodiment of the present invention, it will be understood by those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the invention as defined in the appended claims.

Claims

1. The automatic installation device for the railway contact net dropper is characterized in that the railway contact net dropper comprises a dropper line, a catenary wire clamp, a contact wire clamp, a U-shaped connecting piece, an inverted U-shaped connecting piece, an upper bolt and a lower bolt;

2. The automatic mounting device for the dropper of the railway contact system as claimed in claim 1, wherein the integral clamping device comprises a magnet and two clamping plates, the two clamping plates are located on one side, close to the contact line, of the mounting frame, the two clamping plates are used for clamping the front side and the rear side of the inverted U-shaped connecting piece, the magnet is located on one side, far away from the contact line, of the mounting frame, and the magnet is used for enabling the inverted U-shaped connecting piece to be closely attached to one side, close to the contact line, of the mounting frame in an adsorption mode.

3. The automatic installing device for the dropper of the railway contact line system as claimed in claim 2, wherein the clamping plate comprises a vertical part and a horizontal part located at the bottom of the vertical part, the vertical part is used for clamping the front side and the rear side of the inverted U-shaped connecting piece, the bottom end of the horizontal part is pressed against the top end of the contact line clamp, and the bottom end of the horizontal part is provided with an arc-shaped groove matched with the top end of the contact line clamp.

4. The automatic railway catenary dropper installation apparatus of claim 3 wherein the nut portion of the lower bolt is positioned within the vertical guide slot of the clamp plate and the nut portion of the lower bolt faces and aligns with the lower socket wrench.

5. The automatic railway catenary dropper mounting device of claim 4, wherein an integral clamping device motor mount is disposed on the side of the mounting frame away from the contact line, the integral clamping device motor mount being mounted on the integral clamping device motor mount and driving the integral clamping device motor mount to move up and down along the mounting frame;

6. The automatic installation device of a railway catenary dropper of claim 1 wherein the movable support comprises a base plate and an upper mounting plate connected above and spaced from the base plate by a distance and parallel to the base plate, the mounting bracket is mounted on the top end of the base plate, and the lower motor mount is mounted on the bottom end of the upper mounting plate.

7. The automatic installation device for the dropper of the railway contact system as claimed in any one of claims 1 to 6, wherein the U-shaped connector clamping device comprises a bottom support for supporting the bottom of the U-shaped connector and clamping seats for clamping the front side and the rear side of the U-shaped connector, the bottom support is connected with the clamping seats, the clamping seats are connected with a U-shaped connector clamping device motor base, and the U-shaped connector clamping device motor is installed on the U-shaped connector clamping device motor base and drives the U-shaped connector clamping device motor base to move left and right along the fixed support.

8. The automatic installation device for the dropper of the railway contact system as claimed in claim 7, wherein the fixing bracket is provided with a messenger wire accommodating groove which is open downwards, the top of the inside of the messenger wire accommodating groove is provided with a messenger wire guide wheel, the left side and the right side of the lower part of the messenger wire accommodating groove are expanded outwards to form an inverted Y-shaped structure, and the left side and the right side of the messenger wire accommodating groove are both provided with abdicating grooves.

9. The automatic installation device of a dropper of a railway contact system of claim 8, wherein the messenger wire clamping bin is internally provided with wire clamping rods in the left-right direction, a plurality of messenger wire clamps penetrate through the wire clamping rods, and one ends of the wire clamping rods, far away from the messenger wires, can move up and down;

10. The automatic railway catenary dropper mounting device of claim 9, wherein the nut holding bin is vertically arranged, and the plurality of nut portions are vertically arranged in the nut holding bin.