阅读说明：本技术 一种自动捣固作业装置 (Automatic tamping operation device ) 是由 言建文 王建宏 李华伟 陈荣 郭明丽 于 2019-10-15 设计创作，主要内容包括：本发明公开了一种自动捣固作业装置,设置于捣固车辆上,并包括：处理单元,以及分别与处理单元相连的距离测量单元和捣固下降阀。在捣固车辆作业时,距离测量单元获取线路里程数据并将其发送至处理单元,处理单元通过距离测量单元获取轨枕间距、捣固作业惯性制动距离及捣固作业移动误差距离,根据轨枕间距、捣固作业惯性制动距离、捣固作业移动误差距离,以及手动调整误差距离计算捣固作业位置,并向捣固下降阀输出捣固作业控制信号。本发明能够解决现有作业装置存在作业累计误差,需要不断修正移动距离,甚至导致作业无法进行的技术问题。(The invention discloses an automatic tamping operation device, which is arranged on a tamping vehicle and comprises: the distance measuring unit and the tamping descending valve are respectively connected with the processing unit. When the tamping vehicle works, the distance measuring unit acquires line mileage data and sends the line mileage data to the processing unit, the processing unit acquires the distance between sleepers, the inertial braking distance of tamping work and the moving error distance of tamping work through the distance measuring unit, calculates the position of tamping work according to the distance between sleepers, the inertial braking distance of tamping work, the moving error distance of tamping work and the manual adjustment error distance, and outputs a control signal of tamping work to the tamping descending valve. The invention can solve the technical problems that the prior operation device has operation accumulated error, needs to continuously correct the moving distance and even causes the operation to be impossible.)

1. An automatic tamping work device, characterized in that the automatic tamping work device (100) is arranged on a tamping vehicle and comprises: the device comprises a processing unit (1), and a distance measuring unit (2) and a tamping descending valve (5) which are respectively connected with the processing unit (1); when the tamping vehicle works, the distance measuring unit (2) acquires line mileage data and sends the line mileage data to the processing unit (1), the processing unit (1) acquires a sleeper interval A, a tamping work inertia braking distance B and a tamping work movement error distance D through the distance measuring unit (2), calculates a tamping work position according to the sleeper interval A, the tamping work inertia braking distance B, the tamping work movement error distance D and a manual adjustment error distance C, and outputs a tamping work control signal to the tamping descending valve (5).

2. The automated tamping tool of claim 1, wherein the tie spacing a is calculated according to the formula:

A＝S/J

wherein S is the total moving distance of the tamping device in the previous M times of operation, J is the total moving sleeper number of the tamping device in the previous M times of operation, and M is an integer from 1 to N.

3. The automated tamper-work apparatus of claim 2, wherein the tamper-work inertia braking distance B is calculated according to the formula:

B＝E/W

wherein E is the sum of the moving distances between the tamping device and the actual lower inserting position after the lower inserting signal of the tamping device is generated in the previous W times of operation, and W is an integer between 1 and N.

4. The automatic tamping work device of claim 3, wherein: the moving error distance D of the tamping operation is the difference between the moving distance of the tamping device and the actual moving distance of the tamping device obtained by previous theoretical calculation.

5. The automatic tamping work device of claim 4, wherein: the automatic tamping operation device (100) further comprises an adjusting unit (4) connected with the processing unit (1), and after the tamping vehicle works for a long distance, if the line mileage data measured by the distance measuring unit (2) and the mileage data theoretically calculated generate errors, or the distance difference of the sleepers (10) exceeds a set value, or the moving distance of the next tamping operation and the average sleeper distance exceed a set value, manual error distance adjustment is carried out through the adjusting unit (4), and the manually adjusted error distance is C.

6. The automatic tamping work apparatus according to any one of claims 1 to 5, wherein the distance L of movement of the tamping apparatus from the current tamping work position to the next tamping work position is calculated according to the following formula:

L＝K*A-B+C+D

wherein, K is the sleeper quantity of tamping operation at every turn, and A is the sleeper interval, and B is tamping operation inertia braking distance, and C is manual adjustment error distance, and D is tamping operation movement error distance.

7. The automatic tamping work device of claim 6, wherein: when the tamping vehicle starts to work, tamping work is carried out in a manual control mode, the processing unit (1) obtains line mileage data of a lower inserting position of the tamping device through the distance measuring unit (2), and the distance (A) between sleepers, the inertial braking distance (B) of the tamping work and the moving error distance (D) of the tamping work are calculated according to the line mileage data.

8. The automatic tamping work device according to any one of claims 1 to 5, 7, wherein: during the operation of the tamping vehicle, the processing unit (1) replaces the total moving distance of the tamping device of the previous M-th operation with the total moving distance of the tamping device of the current latest operation.

9. The automatic tamping work device of claim 8, wherein: during the operation of the tamping vehicle, the processing unit (1) replaces the previous W-th tamping operation inertia braking distance with the current latest tamping operation inertia braking distance.

10. The automatic tamping work device according to any one of claims 1 to 5, 7, 9, wherein: the automatic tamping operation device (100) further comprises a sleeper protection execution unit (6) and a manual cutting switch (7), wherein the sleeper protection execution unit (6) further comprises a control coil (61) and an operation switch (62); one end of the control coil (61) is connected to the processing unit (1), and the other end of the control coil is connected with the manual excision switch (7); one end of the operating switch (62) inputs a tamping downward insertion signal, and the other end of the operating switch is connected with the tamping descending valve (5); when the processing unit (1) outputs a sleeper protection signal to the control coil (61), the tamping downward-inserting signal is cut off, the tamping downward valve (5) 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 (7).

Technical Field

The invention relates to the technical field of railway engineering machinery, in particular to an automatic tamping operation device applied to tamping operation of large 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 a patent on 2018, 02/01 and published 2018, 05/29 by the times electronics technologies limited company of the shorea of the present applicant, and the chinese patent application with publication number CN108086070A 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 and positioning of the line sleepers and the formation of operation files before the tamping operation of the vehicle, and does not relate to the calculation of the inserting position of the tamping head of the vehicle in the tamping operation process.

Disclosure of Invention

In view of the above, an object of the present invention is to provide an automatic tamping tool, which solves the technical problems of the prior art, such as accumulated operation errors, the need for continuous correction of the moving distance by the operator, and even the failure of the operation.

In order to achieve the above object, the present invention specifically provides a technical solution of an automatic tamping work apparatus, which is provided on a tamping vehicle and includes: the device comprises a processing unit, and a distance measuring unit and a tamping descending valve which are respectively connected with the processing unit. When the tamping vehicle works, the distance measuring unit acquires line mileage data and sends the line mileage data to the processing unit, the processing unit acquires a sleeper interval A, a tamping operation inertia braking distance B and a tamping operation moving error distance D through the distance measuring unit, calculates a tamping operation position according to the sleeper interval A, the tamping operation inertia braking distance B, the tamping operation moving error distance D and a manual adjustment error distance C, and outputs a tamping operation control signal to the tamping descending valve.

Further, the sleeper spacing a is calculated according to the following formula:

A＝S/J

wherein S is the total moving distance of the tamping device in the previous M times of operation, J is the total moving sleeper number of the tamping device in the previous M times of operation, and M is an integer from 1 to N.

Further, the tamping work inertia braking distance B is calculated according to the following formula:

B＝E/W

wherein E is the sum of the moving distances between the tamping device and the actual lower inserting position after the lower inserting signal of the tamping device is generated in the previous W times of operation, and W is an integer between 1 and N.

Further, the moving error distance D of the tamping operation at this time is a difference value between the moving distance of the tamping device and the actual moving distance of the tamping device obtained by previous theoretical calculation.

Furthermore, the automatic tamping operation device also comprises an adjusting unit connected with the processing unit, and after the tamping vehicle works for a long distance, if the line mileage data measured by the distance measuring unit has an error with the mileage data calculated theoretically, or the distance difference between the sleepers exceeds a set value, or the moving distance of the next tamping operation and the average sleeper distance exceed a set value, the adjusting unit is used for manually adjusting the error distance to be C.

Further, the moving distance L of the tamping unit from the current tamping operation location to the next tamping operation location is calculated according to the following formula:

L＝K*A-B+C+D

wherein, K is the sleeper quantity of tamping operation at every turn, and A is the sleeper interval, and B is tamping operation inertia braking distance, and C is manual adjustment error distance, and D is tamping operation movement error distance.

Furthermore, when the tamping vehicle starts to work, tamping work is carried out in a manual control mode, the processing unit obtains line mileage data of the inserting position of the tamping device through the distance measuring unit, and the distance A between sleepers, the inertial braking distance B of the tamping work and the moving error distance D of the tamping work are calculated according to the line mileage data.

Further, during the operation of the tamping vehicle, the processing unit replaces the total moving distance of the tamping unit of the previous M-th operation with the total moving distance of the tamping unit of the current latest operation.

Further, during the operation of the tamping vehicle, the processing unit replaces the current latest tamping operation inertia braking distance with the previous W-th tamping operation inertia braking distance.

Furthermore, the automatic tamping operation device also comprises a sleeper protection execution unit and a manual cutting switch, wherein 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.

Through the implementation of the technical scheme of the automatic tamping operation device provided by the invention, the automatic tamping operation device has the following beneficial effects:

(1) the automatic tamping operation device can realize automatic correction of operation errors and manual correction of operation errors, and can greatly improve the safety and the automation degree of tamping operation;

(2) the automatic tamping operation device can automatically correct operation errors, is simple in implementation process, and does not need to additionally increase hardware cost;

(3) the automatic tamping operation device can realize automatic tamping under the condition that the distance of the line sleeper is not changed greatly, replaces the stamping of workers, and lightens the working strength of the operators.

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 the system architecture of one embodiment of the automatic tamping tool of the present invention;

FIG. 2 is a schematic view of a parameter display and setup interface of an embodiment of the automatic tamping tool of the present invention;

FIG. 3 is a block diagram of the system architecture of one embodiment of the automatic tamping tool of the present invention;

FIG. 4 is a block diagram of a portion of the system of one embodiment of the automatic tamping tool of the present invention;

FIG. 5 is a schematic diagram of the operation of one embodiment of the automatic tamping tool of the present invention;

FIG. 6 is a schematic diagram of the operation position calculation of an embodiment of the automatic tamping operation device of the present invention;

FIG. 7 is a flowchart of a process for one embodiment of a method for automated tamping operation based on the apparatus of the present invention;

in the figure: 1-processing unit, 2-distance measuring unit, 3-display unit, 4-adjusting unit, 5-tamping descending valve, 6-sleeper protection executing unit, 61-control coil, 62-operation switch, 7-manual cutting switch, 10-sleeper, 11-steel rail, 12-spike and 100-automatic tamping operation 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 to fig. 1 to 7, an embodiment of the automatic tamping tool of the present invention is shown, and the present invention will be further described with reference to the drawings and the embodiment.