阅读说明：本技术 一种轨枕位置保护装置 (Sleeper position protection device ) 是由 王建宏 言建文 李华伟 陈荣 郭明丽 于 2019-10-15 设计创作，主要内容包括：本发明公开了一种轨枕位置保护装置,包括：处理单元,以及分别与处理单元相连的距离测量单元、检测单元和轨枕保护执行单元。作业前,捣固车辆输入包括轨枕与线路里程对应关系的作业文件。作业时,首先定位开始同步点,距离测量单元获取线路里程数据并将其发送至处理单元,处理单元将作业文件的里程数据与实际线路里程对应,使得捣固车辆的实际里程位置与作业文件里程同步变化。检测单元获取轨枕位置数据并将其发送至处理单元,如果检测定位到轨枕,处理单元自动定位和匹配最接近的轨枕所对应的里程位置,并向轨枕保护执行单元输出轨枕保护信号。本发明能够解决现有作业装置存在作业差错,容易发生意外情况,使捣固装置下插至意外位置的技术问题。(The invention discloses a sleeper position protection device, which comprises: the device comprises a processing unit, and a distance measuring unit, a detection unit and a sleeper protection execution unit which are respectively connected with the processing unit. Before operation, the tamping vehicle inputs an operation file comprising the corresponding relation between the sleepers and the route mileage. During operation, a starting synchronization point is located, the distance measuring unit acquires line mileage data and sends the line mileage data to the processing unit, and the processing unit corresponds the mileage data of an operation file to an actual line mileage, so that the actual mileage position of the tamping vehicle and the operation file mileage synchronously change. The detection unit acquires sleeper position data and sends the sleeper position data to the processing unit, if the sleeper is detected and positioned, the processing unit automatically positions and matches the mileage position corresponding to the closest sleeper, and outputs a sleeper protection signal to the sleeper protection execution unit. The invention can solve the technical problems that the existing operation device has operation errors and is easy to have accidents, so that the tamping device is inserted to an unexpected position.)

1. A tie position protection device, characterized in that the tie position protection device (100) is provided on a tamping vehicle and comprises: the device comprises a processing unit (1), and a distance measuring unit (2), a detection unit and a sleeper protection execution unit (20) which are respectively connected with the processing unit (1); before operation, the tamping vehicle inputs an operation file comprising the corresponding relation between the sleeper (10) and the route mileage; during operation, a starting synchronization point is firstly positioned, the distance measuring unit (2) acquires line mileage data and sends the line mileage data to the processing unit (1), and the processing unit (1) corresponds the mileage data of an operation file to an actual line mileage so that the actual mileage position of the tamping vehicle and the mileage of the operation file are synchronously changed; the detection unit obtains the position data of the sleeper (10) and sends the position data to the processing unit (1), if the sleeper (10) is detected and positioned, the processing unit (1) automatically positions and matches the mileage position corresponding to the nearest sleeper (10), calculates the sleeper protection area, and outputs a sleeper protection signal to the sleeper protection execution unit (20).

2. Tie position protection device according to claim 1, characterized in that: the detection unit comprises a magnet induction switch (3) respectively used for detecting a spike (11), a first distance proximity switch (4) used for detecting the spike (11) and a second distance proximity switch (5) used for detecting a sleeper (10); when a spike (11) detection signal output by the magnet induction switch (3) and the first distance proximity switch (4) and a sleeper (10) detection signal output by the second distance proximity switch (5) are received, the processing unit (1) judges that the sleeper (10) is detected.

3. Sleeper position protection device according to claim 1 or 2, characterized in that: the sleeper position protection device (100) further comprises a display unit (6) for displaying a line measurement condition, and when the line is measured, the processing unit (1) synchronizes and virtualizes a relation graph of a sleeper (10) of an actual line and a line mileage and sends the relation graph to the display unit (6); when the processing unit (1) detects and positions the sleeper (10), the protection of the sleeper position can be realized by calculation according to preset parameters.

4. Sleeper position protection device according to claim 3, characterized in that: when the sleeper (10) is not detected and positioned, the processing unit (1) calls an operation file and extends 1-m sleepers from the current measuring point to the operation direction; if the sleeper (10) is detected and positioned again, the operation file is called again, and 1-m sleepers extend to the operation direction from the current detection positioning point until the sleeper (10) is detected and positioned again.

5. Sleeper position protection device according to claim 1, 2 or 4, characterized in that: the processing unit (1) calculates a sleeper protection area according to the set sleeper width, the sleeper boundary protection range and the collected tamping vehicle running speed, and simultaneously displays the position conditions of m sleepers (10) from the current measuring point by searching an operation file.

6. Sleeper position protection device according to claim 5, characterized in that the sleeper protection area is calculated according to the following formula:

protection region Q ═ W +2 × d formed from job file

Protective area P ═ s a obtained by calculation according to running speed of tamping vehicle

The protection area Q comprises a set sleeper width W and a rail edge protection distance d, wherein the two side edges of the sleeper (10) extend along the running direction of the tamping vehicle respectively; the protection area P comprises a distance which is s a from one side edge of the protection area Q along the running reverse direction of the tamping vehicle to the running reverse direction of the tamping vehicle, s is the running speed of the tamping vehicle, and a is an adjusting coefficient.

7. Sleeper position protection device according to claim 6, characterized in that: when partial lines cannot detect and position the sleeper (10) or the detection unit cannot detect the sleeper (10), for the lines which cannot continuously detect and position the sleeper (10) position information, the processing unit (1) obtains the operation protection area of the subsequent line by using the operation file input in advance and the calculated sleeper protection area until the position of the sleeper (10) is detected and positioned again.

8. Sleeper position protection device according to claim 7, characterized in that for a line in which no information on the position of a tie (10) located thereto can be detected continuously, the processing unit (1) calculates the protection area C of the nth tie (10) according to the following formula:

Xn-Q/2-P＜C＜Xn+Q/2

wherein n is the number of sleepers that are not detected to be located, and Xn is the spacing between the nth consecutive non-located sleeper (10) and the first non-located sleeper (10).

9. Sleeper position protection device according to claim 1, 2, 4, 6, 7 or 8, characterized in that: the sleeper position protection device (100) further comprises a manual cut-off switch (8) and a tamping descending valve (9), and the sleeper protection execution unit (20) further comprises a control coil (21) and an operating switch (22); one end of the control coil (21) is connected to the processing unit (1), and the other end of the control coil is connected with the manual excision switch (8); one end of the operating switch (22) inputs a tamping downward insertion signal, and the other end of the operating switch is connected with the tamping descending valve (9); when the processing unit (1) outputs a sleeper protection signal to the control coil (21), the tamping downward-inserting signal is cut off, the tamping downward valve (9) cannot be electrified, the tamping head cannot be inserted downward, and the sleeper protection signal can be cut off through the manual cutting-off switch (8).

10. Tie position protection device according to claim 9, characterized in that: when the position of the sleeper (10) is not detected and positioned in the operation file, the processing unit (1) outputs a sleeper protection signal to the control coil (21), the tamping plug-in signal is cut off, and the sleeper protection signal can be cut off through the manual cutting switch (8) and manual tamping operation can be carried out.

11. Sleeper position protection device according to claim 1, 2, 4, 6, 7, 8 or 10, characterized in that: when an obstacle (16) is marked between two sleepers (10) in an operating document, the protective regions of the two sleepers (10) and the region between the two protective regions are protected during operation of the tamping vehicle.

Technical Field

The invention relates to the technical field of railway engineering machinery, in particular to a sleeper position protection device applied to tamping operation of large-scale road maintenance machinery.

Background

At present, maintenance operation of a railway line is changed from a manual mode to a large-scale engineering machinery mode, a pickaxe needs to be stepped manually in large-scale mechanical tamping operation, a tamping descending pedal needs to be stepped down at a certain distance before a tamping point is reached, a tamping head descends, and accordingly one tamping operation is completed. In the automatic tamping operation process of the large-scale road maintenance machine, the measurement needs to be carried out on the operated railway line, the tamping-up inserting position needs to be calculated, and the moving distance from the current position to the next tamping inserting position needs to be calculated. However, when the system fails, or an accident occurs, the tamping unit may be inserted down to the place of the accident, such as: if inserted above the sleepers, the sleepers may be damaged or the sleepers may be tamped; if inserted to the edge of the tie, the positional relationship of the tie and the spacing between the ties may change.

In the prior art, a common tamping operation method adopts an equidistant operation method, and the operation method is suitable for occasions with unchanged or slightly changed moving distance of each operation. In fact, the distance moved by each operation and the expected distance moved by the operation often have errors, and the errors are gradually accumulated to form a large operation error, so that the operator is required to continuously correct the moving distance in a manual mode. Obviously, the automatic tamping operation method cannot operate under certain conditions, and the technical stuffing shortage that the operator needs to intervene at any time and cannot leave a working post exists.

In addition, the applicant filed application on the year 2018, No. 02/01, and published on the year 2018, No. 05/29, of electronics technologies ltd, and the chinese invention application with the publication number CN108086070A also discloses a railroad track sleeper position measuring device. This railway line sleeper position measurement device includes: a measurement module; the measuring wheel is connected with the measuring module and is used for measuring the mileage of the railway line; the magnet induction switch is connected with the measuring module and is used for detecting the spikes on the sleeper; the first distance proximity switch is connected with the measuring module and is used for detecting a spike on the sleeper; the second distance proximity switch is connected with the measuring module and is used for detecting the sleeper; when the magnet inductive switch and the first distance proximity switch detect the spike and the second distance proximity switch detect the sleeper, the measuring module judges that the sleeper is detected, marks the railway line mileage measured by the measuring wheel as the kilometer post of the corresponding sleeper, and forms railway line data for guiding the operation of the railway tamping vehicle. The invention can solve the technical problems of large operation error, low automation degree, unstable operation state and manual intervention requirement of the existing measurement mode. However, the technical scheme of the invention mainly relates to the measurement positioning of the line sleepers and the formation of operation files before vehicle tamping operation, and does not relate to the sleeper position protection of vehicles during tamping operation.

Disclosure of Invention

In view of the above, the present invention provides a sleeper position protection device to solve the technical problems that an operation error of the existing tamping operation device is easy to occur, and an unexpected situation is easy to occur, so that a tamping device is inserted down to an unexpected position, thereby causing damage to a sleeper or a tamping tool, or changing the position relationship of the sleeper and changing the distance between sleepers.

In order to achieve the above object, the present invention specifically provides a technical implementation scheme of a sleeper position protection device, which is disposed on a tamping vehicle and includes: the device comprises a processing unit, and a distance measuring unit, a detection unit and a sleeper protection execution unit which are respectively connected with the processing unit. Before operation, the tamping vehicle inputs an operation file comprising the corresponding relation between the sleepers and the route mileage. During operation, a starting synchronization point is firstly positioned, the distance measuring unit acquires line mileage data and sends the line mileage data to the processing unit, and the processing unit corresponds the mileage data of an operation file to the actual line mileage so that the actual mileage position of the tamping vehicle and the mileage of the operation file are changed synchronously. The detection unit acquires the position data of the sleeper and sends the position data to the processing unit, if the sleeper is detected and positioned, the processing unit automatically positions and matches the mileage position corresponding to the closest sleeper, calculates the sleeper protection area, and outputs a sleeper protection signal to the sleeper protection execution unit.

Further, the detection unit comprises magnet induction switches respectively used for detecting the spikes, a first distance proximity switch used for detecting the spikes and a second distance proximity switch used for detecting the sleepers. And when a spike detection signal output by the magnet induction switch and the first distance proximity switch and a sleeper detection signal output by the second distance proximity switch are received, the processing unit judges that the sleeper is detected.

Furthermore, the sleeper position protection device also comprises a display unit for displaying the line measurement condition, and when the line is measured, the processing unit synchronously virtualizes a relationship diagram of the sleepers and the line mileage of the actual line and sends the relationship diagram to the display unit. When the processing unit detects and positions the sleeper, the protection of the sleeper position can be realized by calculating according to preset parameters.

Further, when the sleeper is not detected and positioned, the processing unit calls the operation file and extends 1-m sleepers from the current measuring point to the operation direction. And if the sleeper is re-detected and positioned, the operation file is re-called, and 1-m sleepers are extended from the current detection positioning point to the operation direction until the sleeper is re-detected and positioned.

Further, the processing unit calculates a sleeper protection area according to the set sleeper width, the sleeper boundary protection range and the collected tamping vehicle running speed, and simultaneously displays the position conditions of the m sleepers from the current measuring point by searching an operation file.

Further, the sleeper protection area is calculated according to the following formula:

protection region Q ═ W +2 × d formed from job file

Protective area P ═ s a obtained by calculation according to running speed of tamping vehicle

The protection area Q comprises a set sleeper width W and two rail edge protection distances d respectively extending from the sleepers along two side edges of the running direction of the tamping vehicle. The protection area P comprises a distance which is s a from one side edge of the protection area Q along the running reverse direction of the tamping vehicle to the running reverse direction of the tamping vehicle, s is the running speed of the tamping vehicle, and a is an adjusting coefficient.

Further, when a part of lines cannot be detected and positioned to the sleeper or the detection unit cannot detect the sleeper, for the lines which cannot continuously detect and position the sleeper position information, the processing unit obtains the operation protection area of the subsequent line section by using the operation file input in advance and the calculated sleeper protection area until the position of the sleeper is detected and positioned again.

Further, for a line continuously unable to detect the information of locating the sleeper position, the processing unit calculates the protection area C of the nth sleeper according to the following formula:

Xn-Q/2-P＜C＜Xn+Q/2

where n is the number of sleepers that are not detected as being located, and Xn is the spacing between the nth consecutive non-located sleeper and the first non-located sleeper.

Further, the sleeper position protection device further comprises a manual cutting switch and a tamping descending valve, and the sleeper protection execution unit further comprises a control coil and an operation switch. One end of the control coil is connected to the processing unit, and the other end of the control coil is connected with the manual cutting switch. One end of the operating switch inputs a tamping downward insertion signal, and the other end of the operating switch is connected with the tamping descending valve. When the processing unit outputs a sleeper protection signal to the control coil, the tamping downward-inserting signal is cut off, the tamping downward valve cannot be electrified, the tamping head cannot be inserted downward, and the sleeper protection signal can be cut off through the manual cutting switch.

Furthermore, when the position of the sleeper which is not detected and positioned exists in the operation file, the processing unit outputs a sleeper protection signal to the control coil, the tamping downward-inserting signal is cut off, and at the moment, the sleeper protection signal can be cut off through a manual cutting switch to carry out manual tamping operation.

Furthermore, when there is a marking of an obstacle between two sleepers in the work document, the protection areas of the two sleepers and the area between the two protection areas are protected during the operation of the tamping vehicle.

Through the implementation of the technical scheme of the sleeper position protection device provided by the invention, the sleeper position protection device has the following beneficial effects:

(1) according to the sleeper position protection device, the unknown line is accurately measured, the sleeper position data file of the operation line obtained after the measurement is finished is sent to the tamping vehicle for operation, the sleeper position can be accurately positioned, and the fact that the sleeper position is not capable of being tamped and inserted down nearby is achieved, so that the sleeper is effectively protected, accidents are prevented, automatic tamping operation protection can be achieved, operation protection in a manual tamping mode can be achieved, and the safety and the automation degree of tamping operation can be greatly improved;

(2) according to the sleeper position protection device, sleeper position information is deduced through measurement and calculation, operation protection can be realized by combining an operation line sleeper position data file and an operation algorithm, the descending action of a tamping head can be blocked in a protection area, a sleeper is prevented from being damaged or disturbed, and the safety of tamping operation of large engineering machinery is further guaranteed;

(3) the sleeper position protection device can synchronously virtualize a relationship diagram between a sleeper and a kilometer post (or mileage) of an actual line when the measuring device measures the railway line, and a complete database operation file is formed after the measurement is finished and can be used for an operator to look up and recheck data in time, so that the operation error can be automatically corrected, the realization process is simple, and the additional hardware cost is not required.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below. It is obvious that the drawings in the following description are only some embodiments of the invention, from which other embodiments can be derived by a person skilled in the art without inventive effort.

FIG. 1 is a block diagram of a system configuration for one embodiment of a tie position protection device of the present invention;

FIG. 2 is a block diagram of a partial system architecture of one embodiment of the tie position protection device of the present invention;

FIG. 3 is a schematic illustration of the mounting structure of one embodiment of the tie position protection apparatus of the present invention;

FIG. 4 is a schematic illustration of the sleeper location principle of one embodiment of the sleeper location protection apparatus of the present invention;

FIG. 5 is a schematic diagram of the relationship between the sleeper position information and the railroad kilometer posts of the sleeper position protection apparatus of the present invention;

FIG. 6 is a schematic illustration of the sleeper protection principle of one embodiment of the sleeper position protection apparatus of the present invention;

FIG. 7 is a schematic view of a parameter display and setup interface for one embodiment of the tie position protection apparatus of the present invention;

FIG. 8 is a schematic illustration of the barrier positioning principle of one embodiment of the sleeper position protection apparatus of the present invention;

FIG. 9 is a schematic illustration of the barrier protection principle of one embodiment of the sleeper position protection apparatus of the present invention;

FIG. 10 is a schematic diagram of a sleeper protection calculation in accordance with one embodiment of the sleeper position protection apparatus of the present invention;

FIG. 11 is a schematic illustration of a sleeper protection signal waveform for one embodiment of the sleeper position protection apparatus of the present invention;

FIG. 12 is a process flow diagram of one embodiment of a method for tie position protection based on the apparatus of the present invention;

in the figure: the method comprises the following steps of 1-processing unit, 2-distance measuring unit, 3-magnet inductive switch, 4-first distance proximity switch, 5-second distance proximity switch, 6-display unit, 7-interface unit, 8-manual cutting switch, 9-tamping descending valve, 10-sleeper, 11-spike, 12-ballast, 13-steel rail, 14-wheel pair, 15-marking point, 16-obstacle, 20-sleeper protection execution unit, 21-control coil, 22-operation switch and 100-sleeper position protection device.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention. It is to be understood that the described embodiments are merely a few embodiments of the invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring now to fig. 1 through 12, there is shown an embodiment of the tie position protection device of the present invention, and the invention will be further described with reference to the drawings and the embodiment.