CN217260057U

CN217260057U - Rail grabbing device and suspension string mounting equipment with rail grabbing device

Info

Publication number: CN217260057U
Application number: CN202220648795.7U
Authority: CN
Inventors: 秦俊非; 董建林; 刘明利; 袁海林; 连进; 梁伟冬; 周绍启; 赵贤华; 孟庆斌; 李振华; 高盛翔; 李伟; 王云英
Original assignee: Tsinghua Tongchuang Robot Co ltd; China Railway Construction Corp Ltd CRCC; China Railway Construction Electrification Bureau Group Co Ltd; Third Engineering Co Ltd of China Railway Construction Electrification Bureau Group Co Ltd
Current assignee: Tsinghua Tongchuang Robot Co ltd; China Railway Construction Corp Ltd CRCC; China Railway Construction Electrification Bureau Group Co Ltd; Third Engineering Co Ltd of China Railway Construction Electrification Bureau Group Co Ltd
Priority date: 2022-03-23
Filing date: 2022-03-23
Publication date: 2022-08-23
Anticipated expiration: 2032-03-23

Abstract

The utility model provides a grab rail device and have this string of hanging wire erection equipment of grabbing rail device, is including the connecting piece that removes the setting and two grab rail arms that rotate the setting, and the connecting piece is connected with the driver that is used for driving the connecting piece to remove through floating joint, grabs the one end of rail arm and is connected with the connecting piece through drive mechanism, and the connecting piece removes the in-process and drives through drive mechanism and grabs the rotation of rail arm so that two grab the other one end of rail arm and be close to or keep away from. The device of the utility model is simple in structure, can grab the rail location fast, prevent the operation car slope.

Description

Rail grabbing device and suspension string mounting equipment with rail grabbing device

Technical Field

The utility model relates to a railway construction equipment technical field, concretely relates to grab rail device and have this dropper erection equipment who grabs rail device.

Background

The overhead contact system is a main framework of the railway electrification engineering and is a special power transmission line which is erected along a railway line and supplies power to an electric locomotive. Along with the gradual development of railway construction equipment, the construction of contact networks is at present basically entering into the mechanized era, for example, operation car etc. make the construction of contact networks more convenient quick.

However, the wheel of the train has a convex rim and the side with the rim is generally on the inside of the rail, which helps to fix the movement track of the train. When the train turns, the train makes circular motion, if the heights of the inner track and the outer track are the same, the needed centripetal force is provided by the lateral pressure of the outer wheel by the outer track, and the outer track can bear the lateral pressure with the same size. The side pressure magnitude is proportional to the square of the vehicle speed and inversely proportional to the track radius. When the train turns at a high speed, the outer rail is greatly abraded, and the running stability and safety cannot be guaranteed. Therefore, at a curve of a railway, the outer side of the roadbed is usually lifted to make the outer rail higher than the inner rail, so as to prevent the outer rail from being subjected to side pressure, and centrifugal force is balanced by utilizing centripetal force generated by the gravity of the train body. When the contact net is constructed, the track design causes instability of the operation vehicle, and the operation vehicle is easy to topple. The existing rail grabbing device is simple, inconvenient to use and easy to cause the whole vehicle to tip over when the rail grabbing device is not in place.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the technical problem, provide a grab rail device and have this hanger erection equipment who grabs rail device, device simple structure can grab the rail location fast, prevents the operation car slope.

The utility model provides a solve above-mentioned technical problem, the technical scheme who provides is: the utility model provides a grab rail device, is connected with the driver that is used for driving the connecting piece and removes including the connecting piece that removes the setting and two grab rail arms that rotate the setting, the connecting piece through floating the joint, and the one end of grabbing the rail arm is connected with the connecting piece through drive mechanism, and the connecting piece removes the in-process and drives through drive mechanism and grabs the rail arm and rotate so that two other one ends of grabbing the rail arm are close to or keep away from.

Preferably, the device further comprises a protective shell, the connecting piece and the transmission mechanism are arranged inside the protective shell, one end of the rail grabbing arm is rotatably arranged in the protective shell, and the other end of the rail grabbing arm extends out of the protective shell.

Preferably, the transmission mechanism comprises a power connecting rod fixedly connected with the connecting piece, the power connecting rod is hinged with two transmission connecting rods, and the transmission connecting rods are correspondingly hinged with the rail grabbing arms.

Preferably, a limiting block used for limiting the ascending position of the power connecting rod is arranged above the power connecting rod.

Preferably, a bottom plate is fixedly arranged in the protective shell, a return spring is connected between one end, far away from the floating joint, of the connecting piece and the bottom plate, and the return spring is used for pushing the connecting piece to return to an initial shape.

Preferably, the driver is a cylinder, and a piston rod in the cylinder is connected with the connecting piece through a floating joint.

Preferably, the end of the rail grasping arm away from the transmission mechanism is provided with a roller for reducing rail abrasion.

A suspension string mounting device comprises an operation vehicle body and a mounting assembly arranged on the operation vehicle body, wherein the operation vehicle body is provided with the rail grabbing device.

Advantageous effects

The utility model discloses a grab rail device and have this string hanger erection equipment of grabbing rail device, device simple structure, the connecting piece removes, drives drive mechanism, under the cooperation of power connecting rod and transmission connecting rod, the rail arm of grabbing at power connecting rod both ends rotates, realizes grabbing the rail arm and grasps the track. The driver is a cylinder, eccentricity can be reduced through the floating joint, the cylinder and the connecting piece can work stably within an allowable eccentricity range, the problem of insufficient balance precision is solved, and the stable action of the cylinder during working is kept. The return spring is arranged, so that the connecting piece can stably and continuously move, and after the connecting piece drives the rail grasping arm to clamp the rail through the transmission mechanism, the compressed return spring restores to the initial state and drives the connecting piece to return to the initial state.

Drawings

FIG. 1 is a cross-sectional view of a rail grasping apparatus;

FIG. 2 is a perspective view of the rail grasping apparatus;

FIG. 3 is a front view of the rail grasping device;

FIG. 4 is a side view of the rail grasping apparatus;

FIG. 5 is a longitudinal section of the rail grasping device;

the labels in the figure are: 1. the device comprises a cylinder, 2, a piston rod, 3, a floating joint, 4, a connecting piece, 5, a limiting block, 6, a power connecting rod, 7, a transmission connecting rod, 8, a return spring, 9, a rail grabbing arm, 10, a roller, 11, a protective shell, 12, a cylinder flange, 13 and a bottom plate.

Detailed Description

The following detailed description of the preferred embodiments of the invention is provided with reference to the accompanying drawings.

As shown in fig. 1-5: the utility model provides a grab rail device, is connected with the driver including the connecting piece 4 that removes the setting and two rotation sets up grab rail arm 9, and connecting piece 4 connects 3 drive connecting piece 4 rectilinear movement that float through floating that the driver can connect. One end of each grabbing arm 9 is connected with the connecting piece 4 through the transmission mechanism, the connecting pieces 4 drive the grabbing arms 9 to rotate through the transmission mechanisms in the moving process, the connecting pieces 4 move towards the direction close to the grabbing arms 9, the other ends of the grabbing arms 9 are far away, rail grabbing preparation can be carried out, the connecting pieces 4 move towards the direction far away from the grabbing arms 9, the other ends of the grabbing arms 9 are close to each other, and the rails can be clamped.

The power connecting rod 6 and the transmission connecting rod 7 are arranged on the track, and the power connecting rod 6 and the transmission connecting rod 7 are arranged on the track in a sliding mode. The lifting power connecting rod 6 is arranged in the protective shell 11, two ends of the power connecting rod 6 are hinged to two transmission connecting rods 7 through rotating pins, one ends, far away from the power connecting rod 6, of the transmission connecting rods 7 are hinged to rail grabbing arms 9 through the rotating pins, the end portions, far away from the power connecting rod 6, of the two rail grabbing arms 9 penetrate through the protective shell 11 and form a rail clamping portion, and one end, close to the transmission connecting rod 7, of the rail grabbing arms 9 is rotatably connected with the protective shell 11. For better clamping of the rail, the rail-grasping arms 9 are of a "J" shaped configuration, with the two rail-grasping arms 9 being disposed opposite each other. When the power connecting rod 6 is downward, the driving connecting rod 7 is driven to be connected with one end of the power connecting rod 6 downward, the other end of the driving connecting rod 7 is upward, the rail grasping arm 9 is subjected to the upward force of the driving connecting rod 7, so that the rail grasping arm 9 can rotate outwards, the rear driver pulls the power connecting rod 6 to move upwards, and the rail grasping arm 9 rotates inwards to clamp the rail. When the rail grasping positioning is not needed, the power connecting rod 6 is downward, and the rail grasping arm 9 rotates outwards to loosen the rail.

The driver can be a cylinder 1, the bottom of the cylinder 1 is connected with the upper end of a protective shell 11 through a cylinder flange 12 through a bolt, and a piston rod 2 in the cylinder 1 pushes a power connecting rod 6 downwards to drive the rail grasping arms 9 at the two ends to rotate outwards. The cylinder 1 is a cylindrical metal member guiding a piston to perform a linear reciprocating motion in the cylinder, air converts thermal energy into mechanical energy by expansion in the engine cylinder 1, and gas is compressed by the piston in the compressor cylinder 1 to increase pressure. If the cylinder 1 is directly installed on the power connecting rod 6, the bending of the piston rod 2, the abrasion of a rod support bearing and a rod sealing element and the like caused by poor eccentricity and balance precision can be caused, and the performance and the service life of the cylinder 1 are further influenced. In order to enable the cylinder 1 to stably operate, the head end of the piston rod 2 is connected with the floating joint 3, and the cylinder 1 pushes the power connecting rod 6 downwards through the floating joint 3. The floating joint 3 is used for eliminating deviation, reducing eccentricity of the driven cylinder 1, enabling the cylinder 1 and the connecting piece 4 to work stably in an allowable eccentricity range, solving the problem of insufficient balance precision and keeping stable action of the cylinder 1 during working. The driver can also adopt an electric push rod, and the push rod pushes the power connecting rod 6 downwards so as to drive the rail grasping arm 9 to rotate outwards.

A piston rod 2 in the cylinder 1 is in threaded connection with a connecting piece 4 through a floating joint 3, one end, far away from the cylinder 1, of the connecting piece 4 is fixed in the middle of a power connecting rod 6, and a welding mode can be adopted. The connecting piece 4 is the tube-shape, and the internal diameter of the first half of connecting piece 4 is less than the internal diameter of the second half, and reset spring 8 inlays and establishes in the second half of connecting piece 4. The middle of the power connecting rod 6 is correspondingly provided with a through hole, the aperture of the through hole is as large as the inner diameter of the lower half part of the connecting piece 4, and the through hole corresponds to the inner diameter of the connecting piece 4. The return spring 8 extends out of the connecting piece 4 and penetrates through a through hole in the power connecting rod 6, the extending end of the return spring 8 is fixed on the bottom plate 13, and two ends of the bottom plate 13 are fixedly connected with the protective shell 11. When the piston rod 2 of the cylinder 1 is pushed downwards to compress the return spring 8, and after the pushing force of the piston rod 2 disappears, the piston rod 2 is restored to the initial state under the elastic force action of the return spring 8.

In order to ensure the normal operation of the power connecting rod 6 and limit the power connecting rod 6 from moving too much upwards to damage a rail grabbing mechanism, a limiting block 5 for limiting the rising position of the power connecting rod 6 is arranged above the power connecting rod 6. The limiting block 5 can fix both ends thereof on the protective housing 11, thereby realizing that the limiting block 5 is positioned above the power connecting rod 6.

In order to reduce the friction between the rail grasping arm 9 and the rail, a roller 10 for reducing the abrasion is arranged at one end of the rail grasping arm 9 far away from the transmission connecting rod 7, the roller 10 is fixed at one end of the rail grasping arm 9 far away from the power connecting rod 6 through a bolt, and the roller 10 slides relative to the rail to reduce the abrasion between the rail grasping arm 9 and the rail.

The mounting assembly is used for mounting the dropper on a carrier cable and a contact line, and particularly refers to the prior art.

The utility model discloses a use method does: the rail grabbing device is arranged at the bottom of the contact net mounting equipment, when the contact net mounting equipment moves downwards to be fixed, the air cylinder 1 controls the power connecting rod 6 to move downwards, the two rail grabbing arms 9 rotate outwards, then the air cylinder 1 pulls the power connecting rod 6 to move upwards, the two rail grabbing arms 9 rotate inwards, the rail is clamped, and rail grabbing positioning is completed.

The above description is only a preferred embodiment of the present invention, and the present invention is not limited to the above embodiments, and although the present invention has been disclosed with the preferred embodiments, it is not limited to the present invention, and any skilled person in the art can make some modifications or equivalent changes without departing from the technical scope of the present invention.

Claims

1. A rail grabbing device is characterized in that: including connecting piece (4) and two grabbing arm (9) that rotate the setting that remove the setting, connecting piece (4) are connected with the driver that is used for driving connecting piece (4) to remove through floating joint (3), and the one end of grabbing arm (9) is connected with connecting piece (4) through drive mechanism, and connecting piece (4) remove the in-process and drive through drive mechanism and grab arm (9) and rotate so that two other one ends of grabbing arm (9) are close to or keep away from.

2. A rail grasping device according to claim 1, wherein: the rail grabbing arm is characterized by further comprising a protective shell (11), the connecting piece (4) and the transmission mechanism are arranged inside the protective shell (11), one end of the rail grabbing arm (9) is rotatably arranged in the protective shell (11), and the other end of the rail grabbing arm (9) extends out of the protective shell (11).

3. A rail gripping apparatus according to claim 2, wherein: the transmission mechanism comprises a power connecting rod (6) fixedly connected with the connecting piece (4), the power connecting rod (6) is hinged with two transmission connecting rods (7), and the transmission connecting rods (7) are correspondingly hinged with the rail grabbing arms (9).

4. A rail gripping apparatus according to claim 3, wherein: and a limiting block (5) used for limiting the rising position of the power connecting rod (6) is arranged above the power connecting rod (6).

5. A rail grasping device according to claim 2, wherein: the floating connector is characterized in that a bottom plate (13) is fixedly arranged in the protective shell (11), a return spring (8) is connected between one end, far away from the floating connector (3), of the connecting piece (4) and the bottom plate (13), and the return spring (8) is used for pushing the connecting piece (4) to recover to an initial state.

6. A rail grasping device according to claim 1, wherein: the driver is an air cylinder (1), and a piston rod (2) in the air cylinder (1) is connected with the connecting piece through a floating joint (3).

7. A rail gripping apparatus according to claim 1, wherein: and one end of the rail grabbing arm (9) far away from the transmission mechanism is provided with a roller (10) for reducing rail abrasion.

8. The utility model provides a dropper erection equipment, includes the operation automobile body and sets up the installation component on the operation automobile body, its characterized in that: the operation vehicle body is provided with a rail grabbing device as described in any one of claims 1-6.