CN220183714U

CN220183714U - Tamping car

Info

Publication number: CN220183714U
Application number: CN202320873135.3U
Authority: CN
Inventors: 刘强; 于骐玮; 郭涛; 赵雪玉; 代杰
Original assignee: CRCC High Tech Equipment Corp Ltd
Current assignee: CRCC High Tech Equipment Corp Ltd
Priority date: 2023-04-18
Filing date: 2023-04-18
Publication date: 2023-12-15
Anticipated expiration: 2033-04-18

Abstract

The utility model relates to the field of large road maintenance mechanical equipment, in particular to a tamping car, which comprises a car body, a controller and at least one group of tamping pick assemblies, wherein the tamping pick assemblies comprise: the tamping pick mounting frame is arranged on the vehicle body and can move along the two sides of the motion direction of the tamping vehicle; the distance sensor is connected with the controller and is used for measuring the vertical distance between the distance sensor and an object below the distance sensor when the tamping pick assembly works; the distance sensor is positioned right above the rail surface of the steel rail, and when the distance sensor is positioned at one edge of the rail surface, the distances between the first tamping pick and the rail bottom of the steel rail and between the second tamping pick and the rail bottom of the steel rail are all more than 0; the controller is used for controlling the first tamping pick and the second tamping pick to be inserted into two sides of the sleeper to execute tamping operation based on the distance acquired by the distance sensor. Compared with the mode of adopting a stay wire sensor, the distance sensor has no problems of zero point offset, string breakage, measuring wheel abrasion and the like, and further ensures that the tamping pick is inserted downwards without damaging a steel rail.

Description

Tamping car

Technical Field

The utility model relates to the field of large road maintenance mechanical equipment, in particular to a tamping car.

Background

In order to ensure the safety of running a rail train on rails, a tamping car is required for the construction and maintenance of a rail line. The tamping car can insert tamping picks into two sides of the sleeper, and vibrate the tamping picks to tamp railway ballast into the lower part of the sleeper.

The tamping car can utilize the feedback electric signal to compare with the limit voltage in the automatic centering procedure through the wire pulling sensor installed on the tamping frame, measure the transverse offset of the tamping frame and the track pulling trolley in real time, and generate a control signal for correcting the offset of the tamping frame so as to meet the inserting requirement of the tamping car.

However, in actual track maintenance construction, due to the problems of zero point offset, string breakage, abrasion of a measuring wheel and the like of a stay wire sensor, deviation occurs in an automatic centering function, so that the center line of a tamping frame and the center line of a steel rail are not in the same longitudinal plane, the condition that a tamping pick is inserted into the steel rail is easy to occur, the surface of the steel rail is damaged, the maintenance cost of the steel rail is increased, and the driving safety is influenced.

Disclosure of Invention

In order to solve one of the technical defects, the embodiment of the utility model provides a tamping car.

According to a first aspect of an embodiment of the present utility model, there is provided a tamping car comprising a car body, a controller and at least one group of tamping pick assemblies, the tamping pick assemblies and the controller being respectively provided on the car body, the tamping pick assemblies comprising:

the tamping pick mounting frame is arranged on the vehicle body and can move along the two sides of the motion direction of the tamping vehicle; at least one group of first tamping picks are arranged on the tamping pick mounting frame, and the first tamping picks are connected with the controller; at least one group of second tamping picks are arranged on the tamping pick mounting frame, and the second tamping picks are connected with the controller; the distance sensor is arranged on the tamping pick mounting frame and positioned between the first tamping pick and the second tamping pick, the distance sensor is connected with the controller, and the distance sensor is used for measuring the vertical distance between the distance sensor and an object below the distance sensor when the tamping pick assembly works;

when the tamping pick assembly works, the first tamping pick and the second tamping pick are positioned above two sides of the steel rail, the distance sensor is positioned right above the rail surface of the steel rail, and when the distance sensor is positioned right above one edge of the rail surface, the distances between the first tamping pick and the rail bottom of the steel rail and between the second tamping pick and the rail bottom of the steel rail are all larger than 0; the controller is used for controlling the first tamping pick and the second tamping pick to perform tamping operation based on the distance acquired by the distance sensor.

According to a second aspect of an embodiment of the present utility model, there is provided a tamping car including a car body, a controller, and at least one group of tamping pick assemblies, the tamping pick assemblies and the controller being respectively provided on the car body, the tamping pick assemblies including:

the tamping pick mounting frame is arranged on the vehicle body and can move along the two sides of the motion direction of the tamping vehicle; at least one group of first tamping picks are arranged on the tamping pick mounting frame, and the first tamping picks are connected with the controller; at least one group of second tamping picks are arranged on the tamping pick mounting frame, and the second tamping picks are connected with the controller; at least 2 distance sensors are arranged on the tamping pick mounting frame at intervals and positioned between the first tamping pick and the second tamping pick, the distance sensors are connected with the controller, and the distance sensors are used for measuring the vertical distance between the distance sensors and an object below the distance sensors when the tamping pick assembly works;

when the tamping pick assembly works, the first tamping pick and the second tamping pick are positioned above two sides of the steel rail, at least one distance sensor is arranged above each of the two sides of the steel rail, and when the distance sensor farthest from the steel rail on the same side is positioned right above the nearest edge of the rail surface of the steel rail, the distances between the first tamping pick and the rail bottom of the steel rail and between the second tamping pick and the rail bottom of the steel rail are all larger than 0; the controller is used for controlling the first tamping pick and the second tamping pick to perform tamping operation based on the distance acquired by the distance sensor which is farthest from the steel rail on the two sides of the steel rail.

When the tamping car provided by the embodiment of the utility model is used, the first tamping pick and the second tamping pick are positioned above two sides of the steel rail when the tamping pick assembly works, and the distance sensor is positioned right above the rail surface of the steel rail or above two sides of the steel rail. The first tamping pick, the second tamping pick and the distance sensor are respectively connected with the controller, and the controller controls the first tamping pick and the second tamping pick to work based on the distance data detected by the distance sensor. The distance sensor is adopted to measure the vertical distance between the distance sensor and an object below the distance sensor in a non-contact mode so as to measure the distance between the distance sensor and the rail surface or the track bed of the steel rail, and whether the tamping pick assembly moves transversely or not is judged according to the distance value, so that the steel rail is prevented from being inserted and damaged under the tamping pick. Compared with the mode of adopting a stay wire sensor, the distance sensor has no problems of zero point offset, string breakage, measuring wheel abrasion and the like, and further ensures that the tamping pick is inserted downwards without damaging a steel rail.

Drawings

The accompanying drawings, which are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and together with the description serve to explain the utility model and do not constitute a limitation on the utility model. In the drawings:

fig. 1 is a schematic view of a part of the structure of a tamping car of embodiment 1;

fig. 2 is a position state diagram of the tamping pick assembly when in operation;

FIG. 3 is a position diagram of the tamping pick assembly when the distance sensor is in operation;

fig. 4 is a position state diagram of the tamping pick assembly when the distance sensors are two;

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

FIG. 6 is a flowchart showing a method of preventing a tamping car tamping pick from damaging a rail by insertion, according to embodiment 2;

fig. 7 is a further flowchart of a method of preventing insertion of a tamping car tamping pick into a rail, according to embodiment 2.

Detailed Description

In order to make the technical solutions and advantages of the embodiments of the present utility model more apparent, the following detailed description of exemplary embodiments of the present utility model is provided in conjunction with the accompanying drawings, and it is apparent that the described embodiments are only some embodiments of the present utility model and not exhaustive of all embodiments. It should be noted that, without conflict, the embodiments of the present utility model and features of the embodiments may be combined with each other.

In the construction and maintenance of a track line of a ballasted railway, it may be necessary to perform the work using a tamping car. Tamping is carried out by using the tamping vehicle to insert the tamping pick into two sides of the sleeper. When the tamping pick of the tamping car is inserted into both sides of the sleeper, the tamping pick needs to be prevented from being contacted with the steel rail to cause the damage of the steel rail.

A tamping frame of the existing tamping car is provided with a stay wire sensor, and the offset of the tamping frame is measured by using the stay wire sensor so as to meet the requirement of inserting a tamping pick. However, in actual track maintenance construction, the problems of zero point offset, string breakage, abrasion of a measuring wheel and the like of a stay wire sensor can cause larger deviation in measurement, and further cause the insertion of a tamping pick to damage a steel rail.

Example 1

The present embodiment provides a tamping car, as shown in fig. 1, and fig. 1 is a schematic view of a part of the tamping car. The tamping car includes a car body (not shown), a controller 201, and at least one set of tamping pick assemblies 10. The controller 201 and the tamping pick assembly 10 are arranged on the vehicle body, the tamping pick assembly 10 is connected with the controller 201, and the controller 201 can control the tamping pick assembly 10 to work. The body of the tamping car can travel along the track line and drive the tamping pick assembly 10 to travel along the track line to operate the sleeper on the ballasted track line.

As shown in fig. 1, the tamping pick assembly 10 includes a pick mounting frame 101, at least one set of first tamping picks 102, at least one set of second tamping picks 103, and a distance sensor 104. The tamping pick mounting frame 101 is arranged on the vehicle body of the tamping vehicle, the tamping pick mounting frame 101 is fixedly connected with the vehicle body, and the tamping pick mounting frame 101 can move along two sides of the motion direction of the tamping vehicle. For example, the tamping pick mounting frame 101 can be detachably and fixedly connected with the trolley body, so that the tamping pick assembly can be conveniently replaced during later maintenance. In some embodiments, the tamping pick mounting 101 may also be integrally formed with the vehicle body.

Each set of first tamping picks 102 is disposed on a tamping pick mounting frame 101, and each set of second tamping picks 103 is disposed on the tamping pick mounting frame 101. The first tamping pick 102 and the second tamping pick 103 may be respectively connected with the tamping pick mounting frame 101, and the first tamping pick 102 and the second tamping pick 103 are both connected with the controller 201, and the controller 201 may control the first tamping pick 102 and the second tamping pick 103 to move downward and upward. When the tamping pick mounting frame 101 moves along two sides of the tamping machine moving direction, the first tamping pick 102 and the second tamping pick 103 can be driven to move along two sides of the tamping machine moving direction.

When the tamping car needs to work the sleeper by using the tamping pick assembly 10, the first tamping pick 102 and the second tamping pick 103 are positioned above two sides of the steel rail, the controller 201 controls the first tamping pick 102 and the second tamping pick 103 to move downwards, the first tamping pick 102 and the second tamping pick 103 are inserted into two sides of the sleeper, and the first tamping pick 102 and the second tamping pick 103 are vibrated to be in a working state; when the tamping pick assembly finishes working on the sleeper, the controller 201 controls the first tamping pick 102 and the second tamping pick 103 to move upwards, and controls the first tamping pick 102 and the second tamping pick 103 to return to the non-working state.

Each set of first tamping picks 102 includes at least 2, and each set of second tamping picks 103 includes at least 2. When the tamping car is operated by using the tamping pick assembly 10, the first tamping pick 102 and the second tamping pick 103 are positioned above two sides of the same rail, i.e. the first tamping pick 102 is positioned above one side of the rail and the second tamping pick 103 is positioned above the other side of the rail. Both sides of the sleeper are provided with tamping picks, namely, a plurality of first tamping picks 102 are inserted into both sides of the sleeper, a plurality of second tamping picks 103 are inserted into both sides of the sleeper, and the first tamping picks 102 and the second tamping picks 103 are vibrated to tamp railway ballasts below the sleeper.

As shown in fig. 2, fig. 2 is a position state diagram of the tamping pick assembly when in operation. In operation of the tamping car's tamping pick assembly 10, a plurality of first tamping picks 102 and a plurality of second tamping picks 103 are positioned above both sides of the rail 106. A plurality of first and second tamping picks 102 and 103 may be inserted into both sides of a sleeper (not shown), and vibrating the first and second tamping picks 102 and 103 may tamp a ballast under the sleeper. It should be noted that, the first tamping pick 102 and the second tamping pick 103 in fig. 2 each include 4, two opposite sides for inserting into both sides of the sleeper.

As shown in fig. 1, the distance sensor 104 includes at least 1. A distance sensor 104 is provided on the tamping pick mounting 101, and the distance sensor 104 is located between the first tamping pick 102 and the second tamping pick 103. The distance sensor 104 is connected to the controller 201, and the controller 201 can control the distance sensor 104 to collect data and receive the data collected by the distance sensor 104. Wherein the distance sensor 104 is movable with the movement of the tamping pick mounting 101.

In operation of the tamping pick assembly 10, the distance sensor 104 can acquire a vertical distance between the distance sensor and an object therebelow and transmit the acquired distance data to the controller 201. The controller 201 receives the distance information acquired by the distance sensor 104, and controls the first and second tamping picks 102 and 103 to operate based on the distance information. The acquisition range of the distance sensor can be regulated by a system to adjust the precision of the tamping car for preventing the tamping pick from damaging the steel rail by inserting.

When the number of the distance sensors is 1. When the tamping pick assembly is in operation, the distance sensor is located directly above the rail surface of the rail, e.g., the distance sensor is located on the centerline of the rail surface, and the distance sensor can measure the vertical distance of the rail surface from the distance sensor. When the distance sensor is positioned right above one edge of the rail surface, the distances between the first tamping pick and the rail bottom of the steel rail and between the second tamping pick and the steel rail are all more than 0. The controller can control the first tamping pick and the second tamping pick to perform tamping operation according to the distance acquired by the distance sensor. For example, when the distance value acquired by the distance sensor is smaller than or equal to a preset threshold value, controlling the first tamping pick and the second tamping pick to perform pick-off operation; when the distance value acquired by the distance sensor is larger than a preset threshold value, the first tamping pick and the second tamping pick are controlled not to be put down, namely the tamping work of the tamping car is stopped, and the tamping car is reset after checking and confirming.

As shown in fig. 3, fig. 3 is a position state diagram of the tamping pick assembly when the distance sensor is one. The first and second tamping picks 102, 103 are located above both sides of the rail 106, and the first distance sensor 1041 is located directly above the rail surface 1062 of the rail 106. When the first distance sensor 1041 is located directly above the right edge of the rail surface 1062, the first and second tamping picks 102, 103 are spaced apart from the rail bottom 1061 of the rail 106 by a distance greater than 0.

When the distance sensor includes 2 at least, a plurality of distance sensor intervals set up on the tamping pick mounting bracket. When the tamping pick assembly works, the distance sensors are positioned on two sides of the steel rail, and the distance sensors are positioned above the steel rail, namely at least one distance sensor is distributed above the two sides of the steel rail. When the distance sensor on the same side, which is farthest from the steel rail, is positioned right above the nearest edge of the rail surface of the steel rail, the distances between the first tamping pick and the rail bottom of the steel rail and between the second tamping pick and the rail are larger than 0. Wherein, the same side is positioned on the same side of the steel rail. Providing a plurality of distance sensors may increase the lateral offset range of the tamping pick assembly relative to the distance sensors including 1.

The controller can control the first tamping pick and the second tamping pick to carry out tamping operation according to the distance acquired by the distance sensors on the two sides of the steel rail. For example, when the distance value acquired by the distance sensor on one side of the two sides of the steel rail, which is farthest from the steel rail, is larger than a preset threshold value, the first tamping pick and the second tamping pick are controlled to operate; when the distance value acquired by the distance sensor on one side of the two sides of the steel rail, which is farthest from the steel rail, is smaller than a preset threshold value, the first tamping pick and the second tamping pick are controlled to be not put down, namely the tamping work of the tamping car is stopped, and the tamping car is reset after checking and confirmation are carried out.

As shown in fig. 4, fig. 4 is a position state diagram of the tamping pick assembly when the distance sensors are two. The first and second tamping picks 102, 103 are located above both sides of the rail 106, and the second and third distance sensors 1042, 1043 are located between the first and second tamping picks 102, 103 and above both sides of the rail 106. The second distance sensor 1042 is located to the left of rail 106 and the third distance sensor 1043 is located to the right of rail 106. The first and second tamping picks 102, 103 are spaced from the rail base 1061 of the rail 106 by a distance greater than 0 when the second distance sensor 1042 is located directly above the left edge of the rail face 1062 of the rail 106.

In the above embodiment, the distance sensor is disposed between the first tamping pick and the second tamping pick, and the first tamping pick and the second tamping pick are located above both sides of the rail when the tamping pick assembly is in operation, and the distance sensor is located directly above the rail surface of the rail or above both sides of the rail. The first tamping pick, the second tamping pick and the distance sensor are respectively connected with the controller, and the controller controls the first tamping pick and the second tamping pick to work based on the distance data detected by the distance sensor. The distance sensor is used for measuring the vertical distance between the distance sensor and an object below the distance sensor in a non-contact mode so as to measure the distance between the distance sensor and the rail surface or the track bed of the steel rail, and whether the tamping pick assembly moves transversely or not is judged according to the distance value, so that the tamping pick is prevented from being inserted and damaged by the steel rail.

Compared with the mode of adopting a stay wire sensor, the distance sensor has no problems of zero point offset, string breakage, measuring wheel abrasion and the like, and further ensures that the tamping pick is inserted downwards without damaging a steel rail.

In one or more embodiments, as shown in fig. 1, the tamping car further comprises at least one tamping frame 105. The tamping frame 105 is movable along both sides of the direction of motion of the tamping car. The number of tamping frames 105 is equal to the number of tamping pick mounts 101, and the tamping pick mounts 101 are disposed on the tamping frames 105.

When the distance sensor 104 includes one, the distance sensor 104 may be directly disposed on the tamping frame 105, or may be indirectly disposed on the tamping frame 105 through a mounting bracket, and the tamping frame 105 is located between the first tamping pick 102 and the second tamping pick 103. The tamping frames 105 are moved along the two sides of the tamping car in the moving direction, and can drive the tamping drum assembly thereon to move along the two sides of the tamping car in the moving direction.

When the distance sensor includes a plurality of distance sensors, the distance sensor may be disposed on the tamping frame by a mounting bracket, the mounting bracket being fixed to the tamping frame. When the distance sensor 104 includes a plurality, the mounting bracket also includes a plurality, and the number of distance sensors is equal to the number of mounting brackets. The plurality of mounting brackets are in one-to-one correspondence with the plurality of distance sensors 104, and the plurality of distance sensors 104 are respectively arranged on the corresponding mounting brackets.

For example, as shown in fig. 3, when the distance sensors include 1, the tamping mounting frame 101 is disposed on the tamping frame 105, the first mounting bracket 2001 is disposed on the tamping frame 105, and the first distance sensor 1041 is disposed on the first mounting bracket 2001 and between the first tamping pick 102 and the second tamping pick 103.

As further shown in fig. 4, when the distance sensor includes 2, the mounting bracket also includes 2. The tamping mounting frame 101 is disposed on the tamping frame 105, the second mounting bracket 2002 and the third mounting bracket 2003 are disposed on the tamping frame 105 at intervals, the second distance sensor 1042 is disposed on the second mounting bracket 2002, and the third distance sensor 1043 is disposed on the third mounting bracket 2003 and is located between the first tamping pick 102 and the second tamping pick 103.

In one or more embodiments, as shown in fig. 5, fig. 5 is a schematic view of one of the mounting brackets. The mounting bracket 200 includes a Z-shaped plate. The first end of the Z-plate is fixed to the tamping frame 105 and the distance sensor 104 is located at the second section of the Z-plate.

The Z-shaped plate may include a first L-shaped plate 201, a second L-shaped plate 202, and a rubber pad 203, where the first end of the first L-shaped plate 201 is fixed to the tamping frame 105, the distance sensor 104 is disposed at the second end of the second L-shaped plate 202, the rubber pad 203 is disposed between the second end of the first L-shaped plate 201 and the first end of the second L-shaped plate 202, and the rubber pad 203, the second end of the first L-shaped plate 201, and the first end of the second L-shaped plate 202 are fixedly connected, such as by bolting.

The first L-shaped plate 201 may be welded to the center line of the tamping frame, and the reinforcing bars may be added to improve structural strength, and the rubber pad 203 may mitigate the impact of the shock of the tamping frame.

The mounting bracket 200 may also include a slide block 204 and a T-shaped slider 205. The sliding seat 204 is provided with a sliding groove, and the sliding seat 204 is arranged on the second end of the Z-shaped plate, namely, the sliding seat 204 is arranged on the second end of the second L-shaped plate 202. The T-shaped slider 205 includes a head portion and a stem portion, wherein the head portion of the T-shaped slider 205 is slidably disposed within the sliding channel of the sliding seat 204 and the distance sensor 104 is disposed on the stem portion of the T-shaped slider 205.

The head of the T-shaped sliding block 205 can slide back and forth in the sliding groove of the sliding seat 204 to realize the installation range adjustment of the distance sensor 104, and the installation support can meet the installation and debugging of the single-sensor layout and the installation size adjustment of the double-sensor layout.

Distance sensors include, but are not limited to, laser sensors, magnetic flux sensing sensors, ultrasonic sensors, infrared sensors, radar sensors; controllers include, but are not limited to, programmable Logic Controllers (PLCs), field Programmable Gate Arrays (FPGAs), ARM processors, single-chip computers (MCUs), and STMs 32.

Example 2

The present embodiment provides a method of preventing a tamping car tamping pick from inserting a rail, which is applicable to the tamping car of embodiment 1. While the processes described below include a number of operations that occur in a particular order, it should be clearly understood that the processes may include more or less operations that may be performed sequentially or in parallel (e.g., using a parallel processor or a multi-threaded environment). When the distance sensor includes 1, as shown in fig. 6, fig. 6 is a flowchart thereof showing a method of preventing a tamping car tamping pick from being inserted to damage a rail. The method comprises at least part of the following steps: (S101 to S104):

s101, the controller acquires distance data acquired by the distance sensor.

When the tamping car works, the tamping assembly is adjusted to be in place, so that the first tamping pick and the second tamping pick are positioned above two sides of the steel rail, and the distance sensor is positioned right above the rail surface of the steel rail. The distance sensor will acquire the distance between the distance sensor and the object below it and transmit the distance data to the controller.

The tamping pick mounting frame can transversely move along the two sides of the motion direction of the tamping car, and if the tamping pick is positioned right above the steel rail, the tamping pick can damage the steel rail. The controller controls the first tamping pick and the second tamping pick to work according to the distance data detected by the distance sensor, so that the damage of the tamping pick to the steel rail can be effectively avoided.

If the distance sensor moves right above the two side edges of the rail surface of the steel rail, the distance data detected by the distance sensor is the vertical distance between the distance sensor and the rail surface. If the distance sensor is located above both sides of the rail surface of the steel rail, the distance data detected by the distance sensor is larger than the vertical distance between the distance sensor and the rail surface.

For example, as shown in fig. 3, when the first distance sensor 1041 moves within both edges of the rail surface 1062, the distance data collected by the first distance sensor 1041 is the first distance 107. When the first distance sensor 1041 is located above both sides of the rail surface, the distance data collected by the first distance sensor 1041 is the second distance. Wherein the second distance is greater than the first distance.

S102, judging whether a distance value corresponding to the distance data is larger than a preset threshold value.

The preset threshold value is the distance between the distance sensor and the rail surface of the steel rail when the distance sensor is positioned in the two edges of the same steel rail. If the distance value corresponding to the distance data is smaller than or equal to the preset threshold value, executing step S103, and controlling the first tamping pick and the second tamping pick to be inserted into two sides of the sleeper by the controller to perform tamping operation so as to tamp the railway ballast below the sleeper. And if the distance value corresponding to the distance data is greater than the preset threshold value, executing step S104, and controlling the first tamping pick and the second tamping pick to stop working by the controller.

When the distance acquired by the distance sensor is smaller than or equal to a preset threshold value, the distance indicating the transverse offset of the tamping pick assembly is within a controllable range, and the first tamping pick and the second tamping pick are controlled to work without damaging the steel rail; when the distance acquired by the distance sensor is larger than a preset threshold value, the distance indicating the transverse offset of the tamping pick assembly is not in a controllable range, the first tamping pick and the second tamping pick are controlled to work possibly damage steel rails, namely, the first tamping pick and the second tamping pick are stopped, whether the tamping frame offset actually exists can be judged by manual intervention, and the tamping pick assembly is readjusted and reset after the manual confirmation is carried out to restart the work.

The present embodiment also provides a method of preventing a tamping car tamping pick from cutting a rail, which is applicable to the tamping car of embodiment 1. While the processes described below include a number of operations that occur in a particular order, it should be clearly understood that the processes may include more or less operations that may be performed sequentially or in parallel (e.g., using a parallel processor or a multi-threaded environment). When the distance sensor includes a plurality of sensors, as shown in fig. 7, fig. 7 is a further flowchart of a method of preventing insertion of a tamping car tamping pick into a rail. The method comprises at least part of the following steps: (S201 to S203):

and S201, the controller respectively acquires distance data acquired by distance sensors which are farthest from the steel rail on two sides of the steel rail.

When the tamping car works, the tamping assembly is adjusted to be in place, so that the first tamping pick and the second tamping pick are positioned above two sides of the steel rail, the plurality of distance sensors are positioned above two sides of the rail surface of the steel rail, and at least one distance sensor is respectively arranged on two sides of the rail surface of the optical rail. The distance sensor will acquire the distance between the distance sensor and the object below it and transmit the distance data to the controller.

The tamping pick mounting frame can transversely move along the two sides of the motion direction of the tamping car, and if the tamping pick is positioned right above the steel rail, the tamping pick can damage the steel rail. The distance sensors on two sides of the rail surface collect corresponding distance data and send the distance data to the controller. The controller controls the first tamping pick and the second tamping pick to work according to the distance data acquired by the distance sensors of which the two sides are farthest from the steel rail, so that the damage of the tamping pick to the steel rail can be effectively avoided.

If the distance sensor is located above both sides of the rail surface of the rail, the distance data detected by the distance sensor is greater than the perpendicular distance between the distance sensor and the rail surface. If the distance sensor moves right above the two side edges of the rail surface of the steel rail, the distance data detected by the distance sensor is the vertical distance between the distance sensor and the rail surface. As long as the distance sensor on any one of the two sides of the steel rail, which is farthest from the steel rail, is positioned right above the position between the two side edges of the rail surface of the steel rail, the risk of damaging the steel rail is indicated.

S202, judging whether a distance value corresponding to the distance data is larger than a preset threshold value.

When the distance sensor farthest from the steel rail is positioned in the two edges of the same steel rail, the preset threshold value is the distance between the distance sensor and the rail surface of the steel rail. If the distance value corresponding to the distance data is smaller than or equal to the preset threshold value, executing step S203, and controlling the first tamping pick and the second tamping pick to stop working by the controller. If the distance value corresponding to the distance data is greater than the preset threshold value, executing step S204, and controlling the first tamping pick and the second tamping pick to be inserted into two sides of the sleeper to perform tamping operation by the controller so as to tamp the railway ballast below the sleeper.

When the distance acquired by the distance sensor is larger than a preset threshold value, the distance indicating the transverse offset of the tamping pick assembly is in a controllable range, and the first tamping pick and the second tamping pick are controlled to work without damaging the steel rail; when the distance acquired by the distance sensor is smaller than or equal to a preset threshold value, the distance indicating the transverse offset of the tamping pick assembly is not in a controllable range, the first tamping pick and the second tamping pick are controlled to work possibly damage steel rails, namely, the first tamping pick and the second tamping pick are stopped, whether the tamping frame offset actually exists can be judged by manual intervention, and the tamping pick assembly is readjusted to start operation after the manual confirmation is completed.

In the description of the present utility model, it should be understood that the terms "first," "second," "third," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or as implicitly indicating the number of technical features indicated. Thus, a feature defining "a first", "a second", "a third", etc. may explicitly or implicitly include one or more such feature. In the description of the present utility model, the meaning of "plurality" means at least two, for example, two, three, etc., unless specifically defined otherwise.

In the present utility model, unless specifically stated and limited otherwise, the terms "connected," "connected," and the like should be construed broadly and may be, for example, electrically connected or may communicate with each other; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

It will be apparent to those skilled in the art that various modifications and variations can be made to the present utility model without departing from the spirit or scope of the utility model. Thus, it is intended that the present utility model also include such modifications and alterations insofar as they come within the scope of the appended claims or the equivalents thereof.

Claims

1. The utility model provides a tamping car, its characterized in that, tamping car includes automobile body, controller and at least a set of tamping pick subassembly, tamping pick subassembly and controller are established respectively on the automobile body, tamping pick subassembly includes:

the tamping pick mounting frame is arranged on the vehicle body and can move along the two sides of the motion direction of the tamping vehicle;

at least one group of first tamping picks are arranged on the tamping pick mounting frame, and the first tamping picks are connected with the controller;

at least one group of second tamping picks are arranged on the tamping pick mounting frame, and the second tamping picks are connected with the controller;

the distance sensor is arranged on the tamping pick mounting frame and positioned between the first tamping pick and the second tamping pick, the distance sensor is connected with the controller, and the distance sensor is used for measuring the vertical distance between the distance sensor and an object below the distance sensor when the tamping pick assembly works;

2. The tamping car of claim 1, wherein the tamping car comprises:

at least one tamping frame, can follow tamping car direction of motion both sides are removed, tamping pick mounting bracket sets up on the tamping frame, distance sensor sets up on the tamping frame.

3. The tamping car of claim 1 or 2, wherein the distance sensor comprises at least one of a laser sensor, a magnetic flux sensing sensor, an ultrasonic sensor, an infrared sensor, and a radar sensor.

4. The utility model provides a tamping car, its characterized in that, tamping car includes automobile body, controller and at least a set of tamping pick subassembly, controller are established respectively on the automobile body, tamping pick subassembly includes:

at least 2 distance sensors are arranged on the tamping pick mounting frame at intervals and positioned between the first tamping pick and the second tamping pick, the distance sensors are connected with the controller, and the distance sensors are used for measuring the vertical distance between the distance sensors and an object below the distance sensors when the tamping pick assembly works;

5. The tamping car of claim 4, wherein said distance sensor comprises 2.

6. The tamping car of claim 4, wherein the tamping car comprises:

at least one tamping frame, wherein the tamping frame can move along two sides of the motion direction of the tamping car, and the tamping pick mounting frame is arranged on the tamping frame;

at least 2 installing supports, a plurality of installing supports are arranged on the tamping frame at intervals, the distance sensor is located on the installing supports, a plurality of distance sensors are in one-to-one correspondence with a plurality of installing supports, and a plurality of installing supports are distributed between the first tamping pick and the second tamping pick at intervals.

7. The tamping car of claim 6, wherein the mounting bracket comprises:

and the first end of the Z-shaped plate is fixed on the tamping frame, and the distance sensor is arranged at the second end of the Z-shaped plate.

8. The tamping car of claim 7, wherein said Z plate comprises:

a first L-shaped plate having a first end secured to the tamping frame;

the distance sensor is arranged at the second end of the second L-shaped plate;

the rubber pad is located between the second end of first L shaped plate the first end of second L shaped plate, rubber pad, the second end of first L shaped plate with the first end fixed connection of second L shaped plate.

9. The tamping car of claim 7 or 8, wherein the mounting bracket further comprises:

the sliding seat is provided with a sliding groove and is arranged at the second end of the Z-shaped plate;

the T-shaped sliding block comprises a head part and a rod part, wherein the head part is slidably arranged in the sliding groove, and the distance sensor is arranged on the rod part.

10. The tamping car of any one of claims 4 to 8, wherein the distance sensor comprises at least one of a laser sensor, a magnetic flux sensing sensor, an ultrasonic sensor, an infrared sensor, and a radar sensor.