A method for controlling the timing of bolt loosening in an automated fine adjustment work device

Abstract

A method for controlling the timing of bolt tightening in an automated fine-tuning device includes two stages: a first stage and a second stage. During both stages, a control system issues commands to ensure that, before rail lifting, the sleeper fasteners at the sleepers in the front and rear half-units of the work equipment are loosened. Simultaneously, as the fine-tuning device moves forward, two bolt tightening units move along the rail direction to their respective positions. All movements and operations of the bolt tightening units overlap with the work equipment's operating time and the vehicle's travel time, without adding extra time. In summary, this method reduces wasted human resources, increases work efficiency, and saves time and effort.

Description

Technical Field

[0001] This invention belongs to the field of bolt tightening technology, and more specifically, relates to a bolt tightening timing control method for an automated fine-tuning device. Background Technology

[0002] Railway sleepers, also known as railway sleepers, are a type of railway component. During long-term use, due to natural settlement and vibration, some railway sleepers may sink, requiring maintenance. Individual sleepers may be damaged and need timely replacement. During sleeper replacement, a rail lifting device is needed to lift the rail, facilitating sleeper replacement and maintenance. However, before lifting the rail, when the work equipment is operating in a certain number of work units, the sleeper fasteners in the front and rear half of the work unit need to be loosened. Existing fine-tuning devices operate independently, and the loosening and tightening of sleeper fasteners is done manually, resulting in high labor costs, time-consuming and labor-intensive work, and low efficiency.

[0003] The utility model disclosed in CN218285328U is a high initial torque anti-derailment electric wrench. The electric wrench includes a housing, a motor installed in the housing, and a head shell assembly connected to the front end of the housing. The head shell assembly includes a head shell, a square shaft, an impact seat, a central shaft, and a gearbox rear cover. The gearbox rear cover is installed at the rear end of the head shell and forms a receiving cavity with the head shell. The square shaft, impact seat, and central shaft are assembled in the receiving cavity. Workers use this electric wrench to tighten and loosen sleeper fasteners one by one on the railway site. The operation is flexible and can arrange workers according to different maintenance volumes, making it highly applicable. However, the manual operation of tightening and loosening sleeper fasteners has the problems of high labor costs, time and labor costs, and low work efficiency. Summary of the Invention

[0004] To address the aforementioned technical problems, this invention proposes a method for controlling the timing of bolt tightness in an automated fine-tuning device.

[0005] The present invention adopts the following specific technical solutions:

[0006] A method for controlling the timing of bolt tightness in an automated fine-tuning device includes the following steps:

[0007] S1: The first stage of fine-tuning the working sequence of the work vehicle, the process of which is as follows:

[0008] S1.1: The fine-tuning work vehicle is controlled by the control system to operate in area A, which has 2n sleepers. The first n sleepers are area A1 and the last n sleepers are area A2. The sleepers in area A, area B before area A, and area C after area A are in a loose state. Areas B and C each have n sleepers. The rails are lifted so that the fasteners in area D before area B and area E after area C are in a tight state. Areas D and E each have n sleepers. Bolt tightening unit one in area D and bolt tightening unit two in area E are waiting to be operated.

[0009] S1.2: When the working equipment completes its work in area A, it sends a completion signal to the control system, which then issues a rail-laying command, and the rail is lowered.

[0010] S1.3: While laying the rail in step S1.2, the control system simultaneously sends a bolt tightening command to the bolt tightening unit, controls the bolt tightening unit two to tighten the sleeper fasteners in area C, and then controls the bolt tightening unit one to loosen the sleeper fasteners in area D. At this time, all the sleeper fasteners in areas C and E are in a tightened state, and the sleeper fasteners in areas A, B and D are in a loosened state.

[0011] S1.4: After the working equipment completes the sleeper work in area A, the vehicle will move along the working direction to areas B and D to start the second stage of work;

[0012] S2: The second stage of the fine-tuning operation vehicle's working sequence, which follows the first stage of the fine-tuning operation vehicle's working sequence, is as follows:

[0013] S2.1: In step S1.4, while the vehicle moves along the working direction to areas B and D, bolt tightening unit one and bolt tightening unit two move along their respective rail directions. Bolt tightening unit one moves to area F, the area n sleepers before area D, and bolt tightening unit two moves to area A2.

[0014] S2.2: The work equipment completes the work on the sleepers in areas B and D, and sends an installation completion signal to the control system;

[0015] S2.3: The control system issues a command to control the tensioning unit two to tighten the sleeper fasteners in section A2, and then controls the tensioning unit one to loosen the sleeper fasteners in section F;

[0016] S2.4: After the fasteners in areas A1, B, D, and F are in the loosened state, tensioning unit one and tensioning unit two move forward along the rail direction and repeat the above operation steps.

[0017] Furthermore, the bolt tightening unit one is responsible for loosening the fastener, and the bolt tightening unit two is responsible for tightening the fastener.

[0018] Furthermore, the bolt tightening unit one and bolt tightening unit two can move back and forth along the rail direction.

[0019] Furthermore, in step S2.1, the working equipment installs new rail pads in area A. After the rails are laid down, the working equipment continues to install the gauge baffles.

[0020] Furthermore, in step S2.2, when the working equipment operates on the sleepers in areas B and D, the sleeper fasteners in areas C, E, F, and area G (the n sleepers before area F) are all in a tightened state, while the sleeper fasteners in areas A, B, and D are in a loosened state.

[0021] Furthermore, each of the bolt tightening unit one and bolt tightening unit two includes 2n tightening shafts, n sleepers in one operation, and 2n sets of sleeper fasteners.

[0022] Furthermore, all the movements and operations of the bolt tightening unit one and bolt tightening unit two overlap with the working time of the working tools and the travel time of the vehicle, without adding extra working time.

[0023] Furthermore, when the vehicle is operating in the opposite direction, the working sequence of bolt tightening unit one and bolt tightening unit two remains unchanged. The PLC program controls the areas where the bolt tightening units stop to be swapped, and at the same time, the rotation directions of bolt tightening unit one and bolt tightening unit two are reversed.

[0024] Furthermore, when the rotation directions of the bolt tightening unit one and the bolt tightening unit two are opposite, the bolt tightening unit two is responsible for loosening the fastener, and the bolt tightening unit one is responsible for tightening the fastener.

[0025] The beneficial effects of this invention are as follows:

[0026] The method of this invention issues commands through the main control PLC to automatically move the bolt tightening and loosening units to the corresponding positions to perform the bolt tightening and loosening process. This ensures that before the rail is lifted, the sleeper fasteners at the sleepers in the front and rear half-units of the working machine are in a loosened state. The method of this invention has a high degree of automation. In addition, while the fine-tuning vehicle moves forward as a whole, the two sets of bolt tightening and loosening units move along the rail direction to their respective positions. All the movements and operations of the bolt tightening and loosening units overlap with the working time of the working machine and the vehicle's travel time, without adding extra working time. In summary, the method of this invention has a high degree of automation, reduces the waste of human resources, has high work efficiency, and saves time and effort. Attached Figure Description

[0027] Figure 1 This is a schematic diagram of the working sequence of the fine-tuning vehicle divided by region according to the present invention, representing one stage.

[0028] Figure 2 This is a schematic diagram of the two-stage working sequence of the fine-tuning vehicle according to the region division of the present invention;

[0029] Figure 3 This is a schematic diagram of the first stage of the working sequence of the fine-tuning vehicle in Example 3;

[0030] Figure 4 This is a schematic diagram of the two stages of the fine-tuning operation vehicle's working sequence in Example 3. Detailed Implementation

[0031] The present invention will be further described below with reference to specific embodiments. Unless otherwise specified, the raw materials and methods used in the embodiments of the present invention are commercially available materials and conventionally used methods in the art.

[0032] Example 1

[0033] like Figure 1 and Figure 2 As shown in the figure, this embodiment discloses a method for controlling the timing of bolt tightness in an automated fine-tuning device, including the following steps:

[0034] S1: The first stage of fine-tuning the working sequence of the work vehicle, the process of which is as follows:

[0035] S1.1: The fine-tuning work vehicle is controlled by the control system to operate in area A, which has 2n sleepers. The first n sleepers are area A1 and the last n sleepers are area A2. The sleepers in area A, area B before area A, and area C after area A are in a loose state. Areas B and C each have n sleepers. The rails are lifted so that the fasteners in area D before area B and area E after area C are in a tight state. Areas D and E each have n sleepers. Bolt tightening unit one in area D and bolt tightening unit two in area E are waiting to be operated.

[0036] In step S1.1, bolt tightening unit one is responsible for loosening the fasteners, and bolt tightening unit two is responsible for tightening the fasteners. Bolt tightening unit one and bolt tightening unit two can move back and forth along the rail direction. Bolt tightening unit one and bolt tightening unit two each contain 2n tightening shafts. n sleepers and 2n sets of sleeper fasteners are used in one operation.

[0037] S1.2: After the working equipment finishes installing the new rail pad in area A, it sends a completion signal to the control system. The control system issues a rail-laying command, the rail is laid down, and after the rail is laid down, the working equipment continues to work on the gauge baffle.

[0038] S1.3: While laying the rail in step S1.2, the control system simultaneously sends a bolt tightening command to the bolt tightening unit, controls the bolt tightening unit two to tighten the sleeper fasteners in area C, and then controls the bolt tightening unit one to loosen the sleeper fasteners in area D. At this time, all the sleeper fasteners in areas C and E are in a tightened state, and the sleeper fasteners in areas A, B and D are in a loosened state.

[0039] S1.4: After the working equipment completes the sleeper work in area A, the vehicle will move along the working direction to areas B and D to start the second stage of work;

[0040] S2: The second stage of the fine-tuning operation vehicle's working sequence, which follows the first stage of the fine-tuning operation vehicle's working sequence, is as follows:

[0041] S2.1: In step S1.4, while the vehicle moves along the working direction to areas B and D, bolt tightening unit one and bolt tightening unit two move along their respective rail directions. Bolt tightening unit one moves to area F, the area n sleepers before area D, and bolt tightening unit two moves to area A2.

[0042] S2.2: When the working equipment is working on the sleepers in areas B and D, all the sleeper fasteners in areas C, E, F and the n sleepers before area F in area G are in a tightened state, and the sleeper fasteners in areas A, B and D are in a loosened state. The working equipment completes the work on the sleepers in areas B and D and sends an installation completion signal to the control system.

[0043] S2.3: The control system issues a command to control the tensioning unit two to tighten the sleeper fasteners in section A2, and then controls the tensioning unit one to loosen the sleeper fasteners in section F;

[0044] S2.4: After the fasteners in areas A1, B, D, and F are in the loosened state, tensioning unit one and tensioning unit two move forward along the rail direction and repeat the above operation steps.

[0045] Furthermore, the control system is a main control PLC.

[0046] Furthermore, all the movements and operations of bolt tightening unit one and bolt tightening unit two overlap with the working time of the working tools and the travel time of the vehicle, without adding extra working time.

[0047] Example 2

[0048] like Figure 1 and Figure 2 As shown in the figure, this embodiment discloses a method for controlling the timing of bolt tightness in an automated fine-tuning device, including the following steps:

[0049] S1: The first stage of fine-tuning the working sequence of the work vehicle, the process of which is as follows:

[0050] S1.1: The fine-tuning work vehicle is controlled by the control system to operate in area A, which has 2n sleepers. The first n sleepers are area A1 and the last n sleepers are area A2. The sleepers in area A, area B before area A, and area C after area A are in a loose state. Areas B and C each have n sleepers. The rails are lifted so that the fasteners in area D before area B and area E after area C are in a tight state. Areas D and E each have n sleepers. Bolt tightening unit one in area D and bolt tightening unit two in area E are waiting to be operated.

[0051] In step S1.1, bolt tightening unit one is responsible for loosening the fasteners, and bolt tightening unit two is responsible for tightening the fasteners. Bolt tightening unit one and bolt tightening unit two can move back and forth along the rail direction. Bolt tightening unit one and bolt tightening unit two each contain 2n tightening shafts. n sleepers and 2n sets of sleeper fasteners are used in one operation.

[0052] S1.2: When the working equipment completes its work in area A, it sends a completion signal to the control system, which then issues a rail-laying command, and the rail is lowered.

[0053] S1.3: While laying the rail in step S1.2, the control system simultaneously sends a bolt tightening command to the bolt tightening unit, controls the bolt tightening unit two to tighten the sleeper fasteners in area C, and then controls the bolt tightening unit one to loosen the sleeper fasteners in area D. At this time, all the sleeper fasteners in areas C and E are in a tightened state, and the sleeper fasteners in areas A, B and D are in a loosened state.

[0054] S1.4: After the working equipment completes the sleeper work in area A, the vehicle will move along the working direction to areas B and D to start the second stage of work;

[0055] S2: The second stage of the fine-tuning operation vehicle's working sequence, which follows the first stage of the fine-tuning operation vehicle's working sequence, is as follows:

[0056] S2.1: In step S1.4, while the vehicle moves along the working direction to areas B and D, bolt tightening unit one and bolt tightening unit two move along their respective rail directions. Bolt tightening unit one moves to area F, the area n sleepers before area D, and bolt tightening unit two moves to area A2.

[0057] S2.2: When the working equipment is working on the sleepers in areas B and D, all the sleeper fasteners in areas C, E, F and the n sleepers before area F in area G are in a tightened state, and the sleeper fasteners in areas A, B and D are in a loosened state. The working equipment completes the work on the sleepers in areas B and D and sends an installation completion signal to the control system.

[0058] S2.3: The control system issues a command to control the tensioning unit two to tighten the sleeper fasteners in section A2, and then controls the tensioning unit one to loosen the sleeper fasteners in section F;

[0059] S2.4: After the fasteners in areas A1, B, D, and F are in the loosened state, tensioning unit one and tensioning unit two move forward along the rail direction and repeat the above operation steps.

[0060] Furthermore, all the movements and operations of bolt tightening unit one and bolt tightening unit two overlap with the working time of the working tools and the travel time of the vehicle, without adding extra working time.

[0061] Furthermore, when the fine-tuning vehicle operates in the opposite direction, the working sequence of bolt tightening unit one and bolt tightening unit two remains unchanged. The PLC program controls the stopping areas of the bolt tightening units to be swapped. At the same time, the rotation directions of bolt tightening unit one and bolt tightening unit two are reversed. Bolt tightening unit two is responsible for loosening the fasteners, and bolt tightening unit one is responsible for tightening the fasteners.

[0062] Furthermore, the bolt tightening unit is a bolt tightening device. When the fine-tuning vehicle moves forward 2n sleepers, the slide on the vehicle drives the bolt tightening device to move backward n sleepers through the gear mechanism, so that the bolt tightening unit only travels the distance of n sleepers relative to the rail.

[0063] Furthermore, while n is 5, it can be any other positive integer. Depending on the specific implementation of the fine-tuning operation vehicle, the number of sleepers with loosened fasteners should be minimized at any given time, meaning n should be the smallest possible positive integer.

[0064] The method of this invention issues commands through the control system to automatically move the bolt tightening and loosening units to the corresponding positions to perform the bolt tightening and loosening process. This ensures that before the rail is lifted, the sleeper fasteners at the sleepers in the front and rear half-units of the working machine are in a loosened state. The method of this invention has a high degree of automation. Furthermore, in this method, while the fine-tuning vehicle moves forward as a whole, the two sets of bolt tightening and loosening units each move along the rail direction to their corresponding positions. All movements and operations of the bolt tightening and loosening units overlap with the working time of the working machine and the vehicle's travel time, without adding extra working time. In summary, the method of this invention has a high degree of automation, reduces the waste of human resources, has high work efficiency, and saves time and effort.

[0065] Example 3

[0066] like Figure 3 and Figure 4 As shown in the figure, this embodiment discloses a method for controlling the timing of bolt tightness in an automated fine-tuning device, including the following steps:

[0067] S1: As Figure 3 As shown, the first stage of the fine-tuning operation vehicle's working sequence involves the following process:

[0068] S1.1: The sleepers are numbered 1-24 from right to left. When the working equipment is working on 6 sleepers numbered 7-12 in area A, the sleeper fasteners at sleepers 1, 2, 3, and 16-24 are all in a tight state, and the sleeper fasteners at sleepers 4-15 are in a loose state. The rails are allowed to be lifted. Bolt tightening unit one and bolt tightening unit two are located at sleepers 16-18 and 4-6 respectively, waiting for work. The first 3 sleepers in area A are designated as area A1, and the last 3 sleepers in area A are designated as area A2.

[0069] In step S1.1, bolt tightening unit one is responsible for loosening the fasteners, and bolt tightening unit two is responsible for tightening the fasteners. Bolt tightening unit one and bolt tightening unit two can move back and forth along the rail direction. Bolt tightening unit one and bolt tightening unit two each contain 6 tightening shafts. 3 sleepers and 6 sets of sleeper fasteners are used in one operation.

[0070] S1.2: When the working equipment finishes installing the new rail pad in area A, it sends a signal that the rail pad installation is complete to the main control PLC. The main control PLC issues a rail laying command. After the rail is laid, the working equipment continues to carry out subsequent operations such as the installation of the gauge baffle.

[0071] S1.3: In step S3, while the main control PLC issues the rail laying command, the main control PLC simultaneously sends the bolt tightening command to the bolt tightening unit, controls the bolt tightening unit two to tighten the sleeper fasteners of No. 4-6, and then controls the bolt tightening unit one to loosen the sleeper fasteners of No. 16-18. At this time, all sleeper fasteners of No. 1-6 are in the tightened state, and sleeper fasteners of No. 7-18 are in the loosened state.

[0072] S1.4: After the working equipment completes the sleeper work in area A, the main control PLC controls the vehicle to move forward 6 sleepers along the working direction to sleepers 13-18.

[0073] S2: As Figure 4 As shown, the second stage of the fine-tuning operation vehicle's working sequence follows the first stage. The process of the second stage of the fine-tuning operation vehicle's working sequence is as follows:

[0074] S2.1: In step S1.4, while the vehicle moves along the working direction to sleepers 13-18, bolt tightening unit one and bolt tightening unit two move along their respective rail directions. Bolt tightening unit one moves to sleepers 19-21, and bolt tightening unit two moves to area A2.

[0075] S2.2: When the working equipment is working on sleepers 13-18, all the sleeper fasteners at sleepers 1-6 and 19-24 are in a tightened state, and the sleeper fasteners at sleepers 7-18 are in a loose state. The working equipment completes the work on sleepers 13-18 and sends a component installation completion signal to the main control PLC.

[0076] S2.3: The main control PLC issues a command to control the tensioning unit two to tighten the sleeper fasteners in section A2, and then controls the tensioning unit one to loosen the sleeper fasteners at sleepers 19-21;

[0077] S2.4: After the sleeper fasteners at sleepers 10-21 are in the loosened state, tensioning unit one and tensioning unit two move forward along the rail direction and repeat the above operation steps.

[0078] Furthermore, all the movements and operations of bolt tightening unit one and bolt tightening unit two overlap with the working time of the working tools and the travel time of the vehicle, without adding extra working time.

[0079] Furthermore, when the vehicle is operating in the opposite direction, the working sequence of bolt tightening unit one and bolt tightening unit two remains unchanged. The PLC program controls the stopping areas of the bolt tightening units to be swapped. At the same time, the rotation directions of bolt tightening unit one and bolt tightening unit two are reversed. Bolt tightening unit two is responsible for loosening the fasteners, and bolt tightening unit one is responsible for tightening the fasteners.

[0080] The above description is merely a preferred embodiment of the present invention and is not intended to limit the invention. Various modifications and variations can be made to the present invention by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention are included within the scope of protection of the present invention.

Claims

1. A method for controlling the timing of bolt tightness in an automated fine-tuning device, characterized in that, Includes the following steps: S1: The first stage of fine-tuning the working sequence of the work vehicle, the process of which is as follows: S1.1: The fine-tuning work vehicle is controlled by the control system to operate in area A, which has 2n sleepers. The first n sleepers are area A1 and the last n sleepers are area A2. The sleepers in area A, area B before area A, and area C after area A are in a loose state. Areas B and C each have n sleepers. The rails are lifted so that the fasteners in area D before area B and area E after area C are in a tight state. Areas D and E each have n sleepers. Bolt tightening unit one in area D and bolt tightening unit two in area E are waiting to be operated. The bolt tightening unit one is responsible for loosening the fasteners, and the bolt tightening unit two is responsible for tightening the fasteners. Each bolt tightening unit one and bolt tightening unit two contains 2n tightening shafts, n sleepers and 2n sets of sleeper fasteners in one operation. Bolt tightening unit one and bolt tightening unit two can move back and forth along the rail direction. All the movement and operation processes of bolt tightening unit one and bolt tightening unit two overlap with the working time of the operating equipment and the travel time of the vehicle. S1.2: When the working equipment completes its work in area A, it sends a completion signal to the control system, which then issues a rail-laying command, and the rail is lowered. S1.3: While laying the rail in step S1.2, the control system simultaneously sends a bolt tightening command to the bolt tightening unit, controls the bolt tightening unit two to tighten the sleeper fasteners in area C, and then controls the bolt tightening unit one to loosen the sleeper fasteners in area D. At this time, all the sleeper fasteners in areas C and E are in a tightened state, and the sleeper fasteners in areas A, B and D are in a loosened state. S1.4: After the working equipment completes the sleeper work in area A, the vehicle will move along the working direction to areas B and D to start the second stage of work; S2: The second stage of the fine-tuning operation vehicle's working sequence, which follows the first stage of the fine-tuning operation vehicle's working sequence, is as follows: S2.1: In step S1.4, while the vehicle moves along the working direction to areas B and D, bolt tightening unit one and bolt tightening unit two move along the rail direction respectively. Bolt tightening unit one moves to area F, which is n sleepers before area D, and bolt tightening unit two moves to area A2. S2.2: The work equipment completes the work on the sleepers in areas B and D and sends a completion signal to the control system; S2.3: The control system issues a command to control bolt tightening unit two to tighten the sleeper fasteners in area A2, and then controls bolt tightening unit one to loosen the sleeper fasteners in area F; S2.4: After the fasteners in areas A1, B, D, and F are in the loosened state, bolt tightening unit one and bolt tightening unit two move forward along the rail direction and repeat the above operation steps.

2. The method for controlling the timing of bolt tightness in an automated fine-tuning device according to claim 1, characterized in that, In step S2.1, the working equipment is used to install new rail pads in area A.

3. The method for controlling the timing of bolt tightness in an automated fine-tuning device according to claim 1, characterized in that, In step S2.2, when the working equipment operates on the sleepers in areas B and D, the sleeper fasteners in areas C, E, F, and area G (the n sleepers before area F) are all in a tightened state, while the sleeper fasteners in areas A, B, and D are in a loosened state.

4. The method for controlling the timing of bolt tightness in an automated fine-tuning device according to claim 1, characterized in that, Before lifting the rails, when the working equipment is working on 2n sleepers, the fasteners of the first n sleepers and the last n sleepers of the working equipment need to be loosened.

5. The method for controlling the timing of bolt tightness in an automated fine-tuning device according to claim 1, characterized in that, When the fine-tuning vehicle operates in the opposite direction in step S1.1, the working sequence of bolt tightening unit one and bolt tightening unit two remains unchanged, the positions of the areas where the bolt tightening units stop are swapped, and the rotation directions of bolt tightening unit one and bolt tightening unit two are reversed.

6. The method for controlling the timing of bolt tightness in an automated fine-tuning device according to claim 5, characterized in that, When the bolt tightening unit one and bolt tightening unit two rotate in opposite directions, bolt tightening unit two is responsible for loosening the fastener, and bolt tightening unit one is responsible for tightening the fastener.

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