CN210975393U

CN210975393U - Steel rail gauge adjusting mechanism

Info

Publication number: CN210975393U
Application number: CN201921026012.6U
Authority: CN
Inventors: 许悦; 余朝刚; 朱毅然
Original assignee: Shanghai University of Engineering Science
Current assignee: Huahai Engineering Co Ltd of Shanghai Civil Engineering Co Ltd of CREC
Priority date: 2019-07-03
Filing date: 2019-07-03
Publication date: 2020-07-10
Anticipated expiration: 2029-07-03

Abstract

The utility model relates to a rail gauge adjusting mechanism, which comprises a vehicle body, a vertical lifting part and a telescopic adjusting part; the vertical lifting part and the telescopic adjusting part are connected to the vehicle body in a bearing mode, the vertical lifting part is a mechanism capable of being retracted and extended in the vertical direction to be adjusted, and the telescopic adjusting part is a mechanism capable of achieving bidirectional adjustment of the rail gauge of the steel rail through telescopic adjustment in the transverse direction of the steel rail. Compared with the prior art, the utility model discloses can combine with automatic measure and control system, realize the automation of gauge adjustment, improve the precision and the efficiency of gauge adjustment operation.

Description

Steel rail gauge adjusting mechanism

Technical Field

The utility model belongs to the technical field of the railway maintenance equipment, especially, relate to a rail gauge adjustment mechanism.

Background

With the development of high-speed rail construction, the track gauge adjustment of the ballastless track becomes an important content of track maintenance operation. The rail gauge requirement is continuously improved due to the speed increase of the high-speed rail, and the workload of rail maintenance is increased due to the increase of the operating mileage. Therefore, a work tool capable of adjusting the gauge with high accuracy and high efficiency is required.

Chinese patent CN103526656B discloses a rail gauge adjuster, which comprises a left cylinder, a right cylinder, a left clamping piece and a right clamping piece, wherein the left clamping piece and the right clamping piece are used for clamping rails on two sides; the left cylinder body is sequentially provided with a hydraulic cylinder, a reversing valve and a manual pump, a piston rod of the hydraulic cylinder is fixedly connected with the left clamping piece, a sliding pull rod which can move in the right cylinder barrel and can be locked and fixed is arranged in the right cylinder barrel, and the end part of the sliding pull rod is fixedly connected with the right clamping piece. The mechanism supplies power to the manual pump through manpower, and when the steel rail is adjusted, the labor intensity of adjusting workers is high, the automation level is low, and the efficiency is low. Because a manually operated hydraulic system is adopted for adjusting the steel rail, the stepless adjustment performance of the hydraulic cylinder cannot ensure fine adjustment operation, the adjustment is easy to be insufficient or over-adjusted, the adjustment operation is complicated, and the operation flow is time-consuming. And because the mode of fixing the steel rail from the lower part is adopted, the continuous adjustment operation of the deviation point of the steel rail cannot be realized, the adjustment precision is not high, and the overhauling and maintenance of the long-distance high-speed rail line are difficult to realize.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a rail gauge guiding mechanism for overcoming the defects of the prior art.

The purpose of the utility model can be realized through the following technical scheme:

a rail gauge adjusting mechanism of a steel rail comprises a vehicle body, a vertical lifting part and a telescopic adjusting part;

the vertical lifting part and the telescopic adjusting part are connected on the vehicle body in a bearing way,

the vertical lifting part is a mechanism which can be retracted and extended in the vertical direction for adjustment,

the telescopic adjusting part is a mechanism for realizing bidirectional adjustment of the rail gauge of the steel rail by telescopic adjustment in the transverse direction of the steel rail.

The vehicle body is fixedly connected with the vertical lifting part. The vertical lifting part and the telescopic adjusting part are matched with each other through a cylindrical pin and a connecting piece with a long round pin hole, so that movable connection is realized.

The vehicle body comprises a vehicle frame and insulating wheels so as to bear the whole mechanism to move on the rails and ensure the insulation between the two rails.

The vertical lifting section is composed of two identical sections in symmetrical positions with respect to the central vertical plane of the two rails. The two parts are respectively composed of an electric cylinder bracket, an electric cylinder mounting shaft, an electric cylinder and a push rod connecting shaft.

Electronic jar support with fixed connection between the frame of automobile body realizes electronic jar location on the automobile body, electronic jar installation hub connection is in on the electronic jar support, electronic jar with electronic jar leg joint, the push rod connecting axle with electronic jar is connected.

The telescopic adjusting part consists of a suspension, an adjusting claw and a hydraulic telescopic rod. The suspension comprises an electric cylinder push rod connecting piece, a parallel frame and a sliding block; the adjusting claw is provided with a threaded hole at the central axis of the adjusting claw along the track direction, and sliding rails are arranged on two sides of the adjusting claw; the hydraulic telescopic rod comprises a hydraulic cylinder, a connecting rod, a tension and compression sensor and a screw rod.

Two ends of the suspension are symmetrically and movably connected with the adjusting claw through the sliding block and the sliding rail, so that the adjusting claw can move in a translation mode parallel to the track direction relative to the suspension; one end of the hydraulic cylinder push rod is coaxially assembled with a connecting rod, and the other end of the connecting rod is coaxially assembled with a screw rod; one end of the hydraulic cylinder body is coaxially and sequentially provided with a connecting rod, a tension and compression sensor, a connecting rod and a screw rod. The screw rods at two ends of the assembly body with the hydraulic cylinder as the center are matched with the threaded holes in the adjusting claws and are fixedly connected with the adjusting claws.

The electric cylinder push rod connecting piece is provided with a long circular pin hole in the vertical direction, and a push rod of the electric cylinder is connected with the electric cylinder push rod connecting piece of the telescopic adjusting part through a push rod connecting shaft in a pin connection mode. The oblong pin hole enables the push rod connecting shaft to move in the vertical direction, i.e. the suspension can move up and down relative to the push rod connecting shaft.

The adjusting claw is formed by connecting two semicircular arc ends with opposite opening directions in the cross section perpendicular to the plane of the track. The upper end of each circular arc extends along the horizontal direction to be connected with the other circular arc for being matched with the suspension, and the lower end of each circular arc is tangent to the horizontal plane. The semi-circular arc part extending out of the adjusting claw forms a hook claw, and the claw tip at the lower end of each hook claw is an arc surface and is used for contacting with a steel rail. The distance between the front ends of the two claw tips of the hook claw is obtained by adding the width of the rail head of the steel rail and the left-right moving allowance of the adjusting claw. And the center of the upper part of each adjusting claw is provided with a through hole which is matched with a horizontal mounting shaft which is perpendicular to the track direction on the suspension. And two ends of the mounting shaft are respectively sleeved with a spring jacking adjusting claw and a suspension, so that the symmetrical central planes of two claw tips of the adjusting claw are aligned with the symmetrical plane of the steel rail when the operation is not performed. When the gauge is adjusted, the top ends of two adjusting claws at two ends of the steel rail gauge adjusting mechanism, which are respectively provided with a hook claw, tightly push the middle part of the steel rail, and then the movable rail is pushed to adjust the gauge. And an insulating block is arranged in the adjusting claw, so that the insulation between the two tracks is ensured.

When the track gauge adjustment operation is not carried out, the vertical lifting part parallelly retracts the two electric cylinders, and the telescopic adjustment part is lifted, so that the lowest position of the adjustment claw is higher than the rail surface of the steel rail; when the gauge is adjusted, the vertical lifting part parallelly puts down the telescopic adjusting part, so that the center of the top end of the hook claw of the adjusting claw is superposed with the neutral plane of the steel rail.

Compared with the prior art, the utility model improves the maneuverability and the continuity of the operation of the whole mechanism through the vehicle body; the telescopic adjusting part is used for tightly leaning against the steel rail from different sides and realizing the bidirectional adjustment of the gauge; the telescopic adjusting part is vertically retracted and extended through the vertical lifting part, so that the protection effect is achieved, and the passing performance of the whole mechanism is enhanced. The utility model discloses can combine with automatic measure and control system, realize the automation of gauge adjustment, improve the precision and the efficiency of gauge adjustment operation.

Drawings

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

FIG. 2 is a front view of the vertical lift portion;

FIG. 3 is a side view of the vertical lift portion;

FIG. 4 is a perspective view of the adjustment portion;

FIG. 5 is a bottom view of the telescoping adjustment section;

fig. 6 is a partial structural view of the telescopic adjustment part of fig. 3.

In the figure, 1-vehicle body, 2-vertical lifting part, 21-electric cylinder bracket, 22-electric cylinder mounting shaft, 23-electric cylinder, 24-push rod connecting shaft, 3-telescopic adjusting part, 31-electric cylinder push rod connecting piece, 32-suspension, 321-slide block, 322-mounting shaft, 323-spring, 33-adjusting claw, 331-slide rail, 34-hydraulic cylinder, 341-connecting rod, 342-screw rod and 35-tension and compression sensor.

Detailed Description

The present invention will be described in detail with reference to the following embodiments. The following examples will assist those skilled in the art in further understanding the present invention, but are not intended to limit the invention in any way. It should be noted that various changes and modifications can be made by one skilled in the art without departing from the spirit of the invention. These all belong to the protection scope of the present invention.

Examples

A rail gauge adjusting mechanism is structurally shown in figure 1 and comprises a vehicle body 1, a vertical lifting part 2 and a telescopic adjusting part 3. The vehicle body 1 bears other parts, so that the whole mechanism is convenient to move. The vertical lifting and lowering section 2 uses an electric cylinder 23 to retract and retract the telescopic adjustment section 3 in the vertical direction. The telescopic adjusting part 3 is used for realizing the bidirectional adjustment of the rail gauge of the steel rail. The vertical lifting section 2 is composed of two identical parts in symmetrical position with respect to the central vertical plane of the two rails.

The structure of the vertical lifting part 2 is shown in fig. 2-3, and the two parts are respectively composed of an electric cylinder bracket 21, an electric cylinder mounting shaft 22, an electric cylinder 23 and a push rod connecting shaft 24. The electric cylinder bracket 21 is fixedly connected with the frame of the vehicle body, so that the electric cylinder 23 is positioned on the vehicle body. The electric cylinder mounting shaft 22 is connected to the electric cylinder support 21, the electric cylinder 23 is connected to the electric cylinder support 22, and the push rod connecting shaft 24 is connected to the electric cylinder 23.

The push rod connecting piece 31 of the electric cylinder is provided with an oblong pin hole in the vertical direction, and the push rod of the electric cylinder 23 is in pin connection with the push rod connecting piece 31 of the electric cylinder of the telescopic adjusting part 3 through a push rod connecting shaft 24. The oblong pin holes allow the pin to move in the vertical direction, i.e. the suspension 32 can move up and down relative to the pushrod coupling shaft 24. The matching design is matched with the signals of the tension and compression sensors of the electric cylinders, so that the whole mechanism is ensured to have certain flexibility when the adjusting claw is accidentally collided with a steel rail in the downward laying process or other accidental collisions occur, and the whole mechanism cannot be irreversibly damaged due to the integral rigid connection of the mechanism.

The structure of the telescopic adjusting part 3 is shown in fig. 4-5, and comprises a suspension 32, an adjusting claw 33 and a hydraulic telescopic rod. The suspension 32 is provided with an electric cylinder push rod connecting piece 31 and a sliding block 321; the adjusting claw 33 is provided with a threaded hole at the central axis thereof along the track direction, and slide rails 331 are arranged at both sides; the hydraulic telescopic rod comprises a hydraulic cylinder 34, a connecting rod 341, a tension and compression sensor 35 and a screw 342. Two ends of the suspension 32 are symmetrically movably connected with the adjusting claw 33 through a sliding block 321 and a sliding rail 331, so that the adjusting claw 33 can move in a translation mode parallel to the track direction relative to the suspension 32; one end of a push rod of the hydraulic cylinder 34 is coaxially assembled with a connecting rod 341, and the other end of the connecting rod 341 is coaxially assembled with a screw 342; one end of the hydraulic cylinder body is coaxially and sequentially provided with a connecting rod 341, a tension and compression sensor 35, a connecting rod 341 and a screw 342. The screw 342 at the two ends of the assembly body with the hydraulic cylinder 34 as the center is matched with the threaded hole on the adjusting claw 33 and is fixedly connected with the adjusting claw 33.

The adjusting claw 33 is formed by connecting two semicircular arc-shaped ends with the opening direction facing each other in the cross-sectional shape perpendicular to the rail plane, as shown in fig. 6. The upper end of each semicircular arc extends along the horizontal direction to be connected with the other arc for being matched with the suspension, and the lower end of each arc is tangent to the horizontal plane. The tip of the lower end of each hook claw is an arc surface and is used for contacting with the steel rail. The distance between the claw tips at the lower ends of the two hook claws is obtained by adding the width of the rail head of the steel rail and the left-right moving allowance of the adjusting claw. A through hole is formed in the center of the upper part of each adjusting claw and is matched with a mounting shaft 322 which is perpendicular to the track direction and horizontal on the suspension. The two ends of the mounting shaft are respectively sleeved with a spring 323 for tightly propping against the adjusting claw 33 and the suspension 32, so that the symmetrical center plane of the two claw tips of the adjusting claw 33 is aligned with the symmetrical plane of the steel rail 4 when not in operation. An insulating block is arranged in the adjusting claw, so that the insulation between the two tracks is ensured. During the track gauge adjustment operation, the top ends of two adjusting claws 33 at two ends of the steel rail track gauge adjusting mechanism, which are respectively provided with a hook claw, tightly push the middle part of the steel rail, and further push the movable rail to adjust the track gauge.

The corresponding track gauge adjusting method of the utility model comprises the following steps:

step S1: when the gauge adjustment work is not performed, the vertical lifting part 2 parallelly retracts the two electric cylinders 23, and the telescopic adjusting part 3 is lifted, so that the lowest position of the adjusting claw 33 is higher than the rail surface of the steel rail. The planes of symmetry of the two tips of the adjustment claw 33 are aligned with the planes of symmetry of the rail 4. The whole mechanism is carried by the vehicle body 1 and can move on the steel rail without obstruction until the position where the gauge needs to be adjusted is moved.

Step S2: and moving the vehicle body to a position where the track gauge needs to be adjusted, and starting track gauge adjustment operation. And (3) dismounting a fastener bolt of the movable rail, and putting down the telescopic adjusting part 3 by the vertical lifting part 2 in parallel to ensure that the center of the top end of the hook claw of the adjusting claw 33 is superposed with the neutral plane of the steel rail 4. If the track gauge needs to be reduced, the hydraulic telescopic rod is controlled to be shortened, so that the adjusting claw 33 tightly props the steel rail from the outer side of the rail, and the track gauge is further reduced until the track gauge meets the requirement. Similarly, if the gauge needs to be increased, the hydraulic telescopic rod is controlled to extend, so that the adjusting claw 33 tightly pushes the steel rail from the inner side of the rail, and the hydraulic telescopic rod is further extended until the gauge meets the requirement. And after the gauge is measured to be qualified, locking the fastener to fix the steel rail.

Step S3: the hydraulic telescopic rod returns to the initial length, so that the symmetry center plane of the two claw tips of the adjusting claw 33 is aligned with the symmetry plane of the steel rail 4, and the adjusting claw can continue to move along the steel rail or retract from the steel rail without obstruction. If the track gauge adjustment operation needs to be continued, repeating the steps S2 and S3; when the gauge adjustment work is completed, the vertical elevating part 2 retracts the two electric cylinders 23 in parallel, lifts the telescopic adjustment part 3 so that the lowest position of the adjustment claw 33 is higher than the rail surface, returns to the state of step S1, and leaves the work site.

In the description of the present invention, it is to be understood that the terms "above," "bottom," "below," and the like, refer to an orientation or positional relationship merely for convenience in describing the present invention and to simplify the description, and do not indicate or imply that the components or elements so referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the invention.

In the description herein, references to the description of "one embodiment," "an example," "a specific example," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The embodiments described above are intended to facilitate the understanding and use of the invention by those skilled in the art. It will be readily apparent to those skilled in the art that various modifications to these embodiments may be made, and the generic principles described herein may be applied to other embodiments without the use of the inventive faculty. Therefore, the present invention is not limited to the above embodiments, and those skilled in the art should make improvements and modifications within the scope of the present invention according to the disclosure of the present invention.

Claims

1. A rail gauge adjusting mechanism of a steel rail is characterized by comprising a vehicle body, a vertical lifting part and a telescopic adjusting part;

2. A rail gage adjustment mechanism according to claim 1, wherein said car body is fixedly connected to said vertically movable section.

3. A rail gauge adjusting mechanism according to claim 1, wherein the vertical lifting part and the telescopic adjusting part are movably connected by a cylindrical pin and a connecting piece with a long round pin hole.

4. A rail gage adjustment mechanism according to claim 1 wherein said carriage includes insulated wheels disposed beneath said carriage at the carriage level, said insulated wheels moving on the rails and providing insulation between the rails.

5. A rail gauge adjusting mechanism according to claim 1, wherein said vertical lifting part is composed of two identical parts at symmetrical positions with respect to the central vertical plane of the two rails, each part being composed of an electric cylinder bracket, an electric cylinder mounting shaft, an electric cylinder, a push rod connecting shaft,

the electric cylinder support is fixedly connected with the frame of the vehicle body, the electric cylinder mounting shaft is connected onto the electric cylinder support, the electric cylinder is connected with the electric cylinder support, and the push rod connecting shaft is connected with the electric cylinder.

6. A rail gauge adjusting mechanism according to claim 1, wherein said telescopic adjusting portion is composed of a suspension, an adjusting claw, and a hydraulic telescopic rod,

the suspension comprises an electric cylinder push rod connecting piece, a parallel frame and a sliding block;

the adjusting claw is provided with a threaded hole at the central axis of the adjusting claw along the track direction, and sliding rails are arranged on two sides of the adjusting claw;

the hydraulic telescopic rod comprises a hydraulic cylinder, a connecting rod, a tension and compression sensor and a screw rod.

7. A rail gauge adjusting mechanism according to claim 6,

two ends of the suspension are symmetrically and movably connected with the two adjusting claws through the sliding block and the sliding rail;

one end of a push rod of the hydraulic cylinder is coaxially assembled with a connecting rod, and the other end of the connecting rod is coaxially assembled with a screw rod; one end of the hydraulic cylinder body is coaxially and sequentially provided with a connecting rod, a tension and compression sensor, a connecting rod and a screw rod,

and the screw rods connected to the two ends of the hydraulic cylinder are matched with the threaded holes in the adjusting claw and fixedly connected with the adjusting claw.

8. A rail gauge adjusting mechanism according to claim 7, wherein the push rod connecting piece of the electric cylinder is provided with a vertically long circular pin hole, and the push rod of the electric cylinder is connected with the push rod connecting piece of the electric cylinder of the telescopic adjusting part through a push rod connecting shaft to form a pin.

9. A rail gauge adjusting mechanism according to claim 6, wherein the adjusting claw is formed by connecting two semicircular arcs, each of which has a cross section perpendicular to the plane of the rail and has a shape facing the opening, with one upper end extending horizontally to connect with the other semicircular arc, and each lower end being tangent to the horizontal plane, the protruding semicircular arc of the adjusting claw forms a hook claw, the root of the hook claw is connected to the middle of the adjusting claw, the tip of the hook claw faces the inside of the adjusting claw, each tip of the hook claw is a circular arc for contacting the rail, and a distance is formed between the tips of the lower ends of the two hook claws, the distance being the sum of the width of the rail head and the left-right movement margin of the adjusting claw.

10. A rail gauge adjusting mechanism according to claim 6, wherein a through hole is formed in the center of the upper portion of the adjusting claw, and is engaged with a horizontal mounting shaft perpendicular to the track direction on the suspension, and a spring is sleeved on each end of the mounting shaft to urge the adjusting claw and the suspension, and an insulating block is provided in the adjusting claw.