CN217522373U

CN217522373U - Lower anchor voltage limiter for urban rail transit contact network

Info

Publication number: CN217522373U
Application number: CN202221230914.3U
Authority: CN
Inventors: 田晓帆
Original assignee: Nantong Urban Rail Transit Co ltd
Current assignee: Nantong Urban Rail Transit Co ltd
Priority date: 2022-05-19
Filing date: 2022-05-19
Publication date: 2022-09-30
Anticipated expiration: 2032-05-19

Abstract

The utility model discloses an anchor voltage limiter is used to urban rail transit contact net, the power distribution box comprises a box body, the inner wall fixedly connected with mounting panel of box, the last lateral wall symmetry fixedly connected with sheetmetal of mounting panel, the inside wall symmetry fixedly connected with of box is located the mount pad of mounting panel top, two the equal sliding connection in one side that the mount pad is relative has the movable plate, is located same one side equal fixedly connected with spring between the inner wall of mount pad and the movable plate. The utility model discloses a splint remove to being close to voltage limiter outer wall direction to the completion is to the fixed of voltage limiter, has guaranteed the stability of voltage limiter during operation, and the rotatory pipe drives lead screw and drill bit and moves down, makes lead screw and drill bit bore into the underground earth, thereby accomplishes laying of ground wire, lays the ground wire with traditional manual work and compares, has reduced the amount of labour, has improved the convenience of using, and then has promoted work efficiency.

Description

Lower anchor voltage limiter for urban rail transit contact network

Technical Field

The utility model relates to an urban rail transit contact net external insulation and lightning protection technical field especially relate to an urban rail transit contact net is with anchor voltage limiter down.

Background

Urban rail transit plays an important role in relieving traffic pressure in modern cities. In recent years, urban rail transit is rapidly developed, lines are increasingly dense, and the proportion of transportation capacity in an urban transportation network is increasing, so that the urban rail transit becomes an indispensable link for facilitating the trip of people. Urban rail transit generally refers to transportation modes such as subways and trams, wherein the popularity of subways is the highest. Most of subway lines are laid underground, and are less affected by lightning. But the subway lines of parking lots and parts of suburb road sections are generally positioned on viaducts, and tall trees or buildings are rarely shielded around the viaducts, so that the viaducts are easy to be struck by lightning. Because the equipment insulation level of the urban rail transit contact network is low, the urban rail transit contact network is difficult to resist lightning overvoltage, and the insulator is easy to damage or trip due to inductive lightning or direct lightning, even the traveling is influenced. At present, in urban rail projects which are put into operation in China, the lightning protection method is few and the function is incomplete, and the requirement of high-reliability operation of a modern urban rail system cannot be met. The lower anchor insulator plays an important role in an urban rail contact network. Once the lower anchor insulator is damaged by lightning strike, the mechanical strength is lost, and serious accidents such as wire breakage and the like can be caused. Therefore, lightning stroke protection of the lower anchor insulator is the most important factor for lightning stroke protection of the contact net of the urban railway. The existing lightning stroke protection measures of the lower anchor insulator generally adopt a series gap metal oxide lightning arrester. However, the existing device is not convenient and fast to install the equipment, and the ground wire is laid manually, so that the workload is large, and the efficiency is low.

Therefore, the lower anchor voltage limiter for the urban rail transit contact network is provided.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the problem in the background art, and the anchor voltage limiter is used to urban rail transit contact net that provides.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

the lower anchor voltage limiter for the urban rail transit contact network comprises a box body, wherein the inner wall of the box body is fixedly connected with a mounting plate, the upper side wall of the mounting plate is symmetrically and fixedly connected with a metal sheet, the inner side wall of the box body is symmetrically and fixedly connected with mounting seats positioned above the mounting plate, one sides, opposite to the two mounting seats, are respectively connected with a movable plate in a sliding manner, springs are respectively and fixedly connected between the inner wall of the mounting seat and the movable plate positioned on the same side, the end parts, opposite to the two movable plates, are respectively and fixedly connected with a clamping plate, the upper side wall of the mounting plate is symmetrically and fixedly connected with a hydraulic cylinder, one end, far away from the mounting plate, of the hydraulic cylinder positioned on the same side is respectively and fixedly connected with a supporting rod which is in contact with the movable plate in a supporting manner, guide pipes positioned below the mounting plate are symmetrically and fixedly inserted into the lower side wall of the box body, and the inner bottom wall of the guide pipes positioned on the same side is rotatably connected with a rotating pipe, lie in with one side the equal fixedly connected with motor of the interior diapire of stand pipe lies in with one side the equal fixedly connected with of drive end of motor rotates the worm of being connected with the interior roof of stand pipe, lies in with one side the equal fixed cover of outer wall of rotatory pipe is equipped with the worm wheel that meshes mutually with the worm, lies in with one side the equal threaded connection of inner wall of rotatory pipe has the lead screw, lies in with one side the lead screw is all simultaneously with stand pipe downside wall threaded connection, lies in with one side the equal fixedly connected with drill bit of lower extreme of lead screw lies in with one side all be connected with the wire between the top of lead screw and the sheetmetal.

Preferably, a rubber pad is mounted on one side of each of the two clamping plates opposite to each other.

Preferably, the upper side wall of the moving plate located on the same side is provided with guide grooves matched with the abutting rods.

Preferably, the top ends of the two abutting rods are circularly arranged.

Preferably, bearings are fixedly embedded in the inner top walls of the guide pipes on the same side, and inner rings of the bearings on the same side are fixedly connected with the outer wall of the worm.

Compared with the prior art, this urban rail transit contact net is with anchor voltage limiter's advantage lies in:

1. the pressure limiter is arranged between the two clamping plates, the hydraulic cylinder is started, the driving end of the hydraulic cylinder drives the abutting rod to move upwards, the abutting rod is in extrusion contact with the guide groove in the moving plate, and therefore the moving plate and the clamping plates are driven to move towards the direction close to the outer wall of the pressure limiter, fixing of the pressure limiter is achieved, and stability of the pressure limiter during working is guaranteed;

2. the ground wire laying device is characterized in that a guide pipe, a rotary pipe, a motor, a worm wheel, a holding rod, a drill bit, a screw rod and a lead are arranged, the motor is started, the drive end of the motor drives a worm to rotate clockwise, and further drives the worm wheel and the rotary pipe which are meshed with the worm to rotate, so that the rotary pipe drives the screw rod and the drill bit to move downwards, and the screw rod and the drill bit are made to penetrate into underground soil, and therefore laying of the ground wire is completed;

to sum up, the utility model discloses a splint remove to being close to the voltage limiter outer wall direction to accomplish the fixed to the voltage limiter, guaranteed the stability of voltage limiter during operation, and the swivelling joint pipe drives lead screw and drill bit and moves down, makes lead screw and drill bit bore into underground earth, thereby accomplishes laying of ground wire, lays the ground wire with traditional manual work and compares, has reduced the amount of labour, has improved the convenience of using, and then has promoted work efficiency.

Drawings

Fig. 1 is a schematic structural view of an anchor pressure limiter for an urban rail transit overhead line system provided by the utility model;

fig. 2 is a cross-sectional view of a guide pipe in the lower anchor pressure limiter for the urban rail transit overhead line system provided by the utility model;

fig. 3 is a cross-sectional view of a rotating pipe in the lower anchor pressure limiter for the urban rail transit overhead contact system provided by the utility model;

fig. 4 is the utility model provides a cross-sectional view of junction between movable plate and the guide way in the anchor voltage limiter for urban rail transit contact net.

In the figure: the device comprises a box body 1, a mounting plate 2, a metal sheet 3, a mounting seat 4, a moving plate 5, a clamping plate 6, a hydraulic cylinder 7, an abutting rod 8, a guide groove 9, a guide pipe 10, a rotating pipe 11, a worm wheel 12, a motor 13, a worm 14, a lead screw 15, a drill bit 16 and a lead 17.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.

Referring to fig. 1-4, a lower anchor pressure limiter for an urban rail transit overhead line system comprises a box body 1, wherein an inner wall of the box body 1 is fixedly connected with a mounting plate 2, an upper side wall of the mounting plate 2 is symmetrically and fixedly connected with a metal sheet 3, an inner side wall of the box body 1 is symmetrically and fixedly connected with mounting seats 4 positioned above the mounting plate 2, one opposite sides of the two mounting seats 4 are respectively and slidably connected with a moving plate 5, springs are respectively and fixedly connected between the inner wall of the mounting seat 4 and the moving plate 5 positioned on the same side, opposite end parts of the two moving plates 5 are respectively and fixedly connected with clamping plates 6, one opposite sides of the two clamping plates 6 are respectively provided with a rubber pad, an upper side wall of the mounting plate 2 is symmetrically and fixedly connected with a hydraulic cylinder 7, one end, far away from the mounting plate 2, of the hydraulic cylinder 7 positioned on the same side is respectively and fixedly connected with a supporting rod 8 in abutting contact with the mounting plate 5, and an upper side wall of the moving plate 5 positioned on the same side is provided with a guide groove 9 matched with the supporting rod 8;

the top ends of the two abutting rods 8 are all arranged in a circular shape, the lower side wall of the box body 1 is symmetrically and fixedly inserted with guide pipes 10 positioned below the mounting plate 2, the inner bottom wall of the guide pipe 10 positioned on the same side is rotatably connected with a rotating pipe 11, the inner bottom wall of the guide pipe 10 positioned on the same side is fixedly connected with a motor 13, the driving end of the motor 13 positioned on the same side is fixedly connected with a worm 14 rotatably connected with the inner top wall of the guide pipe 10, the inner top wall of the guide pipe 10 positioned on the same side is fixedly embedded with a bearing, the inner ring of the bearing positioned on the same side is fixedly connected with the outer wall of the worm 14, the outer wall of the rotating pipe 11 positioned on the same side is fixedly sleeved with a worm wheel 12 meshed with the worm 14, the inner wall of the rotating pipe 11 positioned on the same side is all in threaded connection with a screw rod 15, the screw rods 15 positioned on the same side are all in threaded connection with the lower side wall of the guide pipe 10, and the lower end of the screw rod 15 positioned on the same side is all fixedly connected with a drill bit 16;

the top end of the screw rod 15 and the metal sheet 3 which are positioned on the same side are both connected with a lead 17, the voltage limiter is placed between the two clamping plates 6, the hydraulic cylinder 7 is started, the driving end of the hydraulic cylinder 7 drives the abutting rod 8 to move upwards, so that the abutting rod 8 is in extrusion contact with the guide groove 9 in the movable plate 5, the movable plate 5 and the clamping plates 6 are driven to move towards the direction close to the outer wall of the voltage limiter, the fixing of the voltage limiter is finished, the stability of the voltage limiter in working is ensured, the motor 13 is started, the driving end of the motor 13 drives the worm 14 to rotate clockwise, further the worm wheel 12 and the rotating pipe 11 which are meshed with the worm 14 are driven to rotate, the rotating pipe 11 drives the screw rod 15 and the drill bit 16 to move downwards, the screw rod 15 and the drill bit 16 are made to drill into underground soil, and the laying of the ground wire is finished, compared with the traditional manual laying of the ground wire, the labor amount is reduced, and the use convenience is improved, thereby improving the working efficiency.

Further, unless otherwise specifically stated or limited, the above-described fixed connection is to be understood in a broad sense, and may be, for example, welded, glued, or integrally formed as is conventional in the art.

Now, the operation principle of the present invention is explained as follows:

when the ground wire laying device is used, the voltage limiter is placed between the two clamping plates 6, the hydraulic cylinder 7 is started, the driving end of the hydraulic cylinder 7 drives the abutting rod 8 to move upwards, the abutting rod 8 is enabled to be in extrusion contact with the guide groove 9 in the moving plate 5, the moving plate 5 and the clamping plates 6 are driven to move towards the direction close to the outer wall of the voltage limiter, the voltage limiter is fixed, and the stability of the voltage limiter in the working process is guaranteed.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. The lower anchor voltage limiter for the urban rail transit contact net comprises a box body (1) and is characterized in that an inner wall of the box body (1) is fixedly connected with a mounting plate (2), an upper side wall of the mounting plate (2) is symmetrically and fixedly connected with a metal sheet (3), an inner side wall of the box body (1) is symmetrically and fixedly connected with mounting seats (4) positioned above the mounting plate (2), two opposite sides of the mounting seats (4) are respectively and slidably connected with a movable plate (5), a spring is respectively and fixedly connected between the inner wall of the mounting seat (4) and the movable plate (5) positioned on the same side, two opposite end parts of the movable plate (5) are respectively and fixedly connected with a clamping plate (6), an upper side wall of the mounting plate (2) is symmetrically and fixedly connected with hydraulic cylinders (7), one ends, far away from the mounting plate (2), of the hydraulic cylinders (7) positioned on the same side are respectively and fixedly connected with supporting rods (8) which are abutted to the movable plates (5), the lower side wall of the box body (1) is symmetrically and fixedly inserted with a guide pipe (10) positioned below the mounting plate (2), the inner bottom wall of the guide pipe (10) positioned on the same side is rotatably connected with a rotating pipe (11), the inner bottom wall of the guide pipe (10) positioned on the same side is fixedly connected with a motor (13), the driving end of the motor (13) positioned on the same side is fixedly connected with a worm (14) rotatably connected with the inner top wall of the guide pipe (10), the outer wall of the rotating pipe (11) positioned on the same side is fixedly sleeved with a worm wheel (12) meshed with the worm (14), the inner wall of the rotating pipe (11) positioned on the same side is in threaded connection with a screw rod (15), the screw rod (15) positioned on the same side is in threaded connection with the lower side wall of the guide pipe (10), and the lower end of the screw rod (15) positioned on the same side is fixedly connected with a drill bit (16), and lead wires (17) are connected between the top end of the screw rod (15) and the metal sheet (3) which are positioned on the same side.

2. The lower anchor pressure limiter for the urban rail transit overhead line system according to claim 1, wherein a rubber pad is mounted on one side opposite to each of the two clamping plates (6).

3. The lower anchor pressure limiter for the urban rail transit overhead line system according to claim 1, wherein the upper side walls of the moving plates (5) located on the same side are provided with guide grooves (9) matched with the abutting rods (8).

4. The lower anchor pressure limiter for the urban rail transit overhead line system according to claim 1, wherein the top ends of the two abutting rods (8) are arranged in a circular shape.

5. The lower anchor pressure limiter for the urban rail transit overhead line system according to claim 1, wherein bearings are fixedly embedded in the inner top walls of the guide tubes (10) on the same side, and inner rings of the bearings on the same side are fixedly connected with the outer wall of the worm (14).