APS stroke control device

Abstract

The invention relates to the technical field of coke oven equipment control, in particular to an APS stroke control device which comprises a stand column, a middle cross beam, an APS clamping arm and a hydraulic cylinder, the stand column is arranged on an APS clamping device foundation, the stand column is fixedly connected with the middle cross beam, the bottom end of the APS clamping arm is hinged to the stand column, the middle of the APS clamping arm is movably hinged to a piston rod of the hydraulic cylinder, and the hydraulic cylinder is fixedly connected with the middle cross beam. The device further comprises an acquisition unit and a control unit, and the acquisition unit is connected with the middle cross beam and the APS clamping arms. The device has the advantages that the limiting switches provide more accurate position detection signals, it is ensured that the motion state of the hydraulic cylinders is accurately fed back, and synchronism detection of the left hydraulic cylinder and the right hydraulic cylinder can be achieved through combination of the limiting switches and the limiting baffles of the left APS clamping arm and the right APS clamping arm, so that the overall precision of an APS system is improved; the first limiting switch and the second limiting switch are used for detecting in-place clamping position information of the left APS clamping arm and the right APS clamping arm correspondingly, accurate positioning is achieved, and accidents caused by the fact that the hydraulic cylinder does not work in place are avoided.

Description

Technical Field

[0001] The present invention relates to the technical field of coke oven equipment control, and particularly to an APS stroke control device. Background Art

[0002] The dry quenching coke APS (Area Positioning System) is a hydraulic cylinder forced clamping and alignment device, which realizes the mandatory and precise positioning of the coke quenching car. Usually, in the APS system, proximity switches are used to detect the two hydraulic cylinders whether in the clamping position or the relaxation position. After seeing the signal that the APS hydraulic cylinder is loosened in place, the coke pot car driver can drive the coke pot car to continue moving.

[0003] The traditional technology uses proximity switches as sensors to detect the movement stroke of the hydraulic cylinder. The proximity switch has the advantages of non-contact detection, can detect the approach and presence of an object without contacting the detected object, so it has the characteristics of long life and fast response speed. However, the limitation of the proximity switch is that it can only provide a switch quantity feedback signal and cannot provide continuous real-time data. In actual production, this limitation often leads to the following problems:

[0004] Signal feedback is not timely: The proximity switch cannot monitor the movement state of the hydraulic cylinder in real time, resulting in the coke pot car driver being unable to accurately judge whether the hydraulic cylinder is completely loosened, so the operation timing may be misjudged;

[0005] Risk of misoperation: Due to the delay in the signal feedback of the proximity switch, the coke pot car driver may continue to drive the coke pot car when the hydraulic cylinder is not completely loosened, resulting in a collision accident between the clamping block of the coke pot car and the APS hydraulic cylinder;

[0006] Poor system stability: The hydraulic cylinders may be asynchronous during the clamping or loosening process, further increasing the risk of misoperation. Summary of the Invention

[0007] The purpose of the present invention is to provide an APS stroke control device, which improves the safety of the APS, solves the foreseeable accident hazards, and achieves the purpose of safe operation.

[0008] To achieve the above purpose, the present invention is realized through the following technical solutions:

[0009] An APS stroke control device includes an APS clamping device. The APS clamping device includes a column, an intermediate cross beam, an APS clamping arm, and a hydraulic cylinder. The column is arranged on the basis of the APS clamping device, and the intermediate cross beam is fixedly connected to the column. The bottom end of the APS clamping arm is hinged to the column, and the middle part of the APS clamping arm is movably hinged to the piston rod of the hydraulic cylinder. It also includes a collection unit and a control unit. The collection unit is respectively connected to the intermediate cross beam and the APS clamping arm. The collection unit is used to collect the information of the APS clamping arm reaching the open position and the closed position, and the collection unit is connected to the control unit.

[0010] The collection unit includes limit switches and limit baffles. The limit baffles are respectively fixedly connected to the left and right APS clamping arms. The limit baffles are respectively located at the positions where the left and right APS clamping arms reach the clamping position and the release position. The limit switches are respectively fixedly connected to the intermediate cross beam and the limit switch brackets. The limit switches are respectively used to detect the position information of the corresponding limit baffles, and the limit switch brackets are respectively fixedly connected to the basis of the APS clamping device.

[0011] The limit switches include limit switch one and limit switch two. The number of limit switch one is two, and the limit switch one is respectively fixedly connected to both sides of the intermediate cross beam, and is respectively used to detect the position information of the left and right APS clamping arms reaching the clamping position; the number of limit switch two is two, and the limit switch two is respectively fixedly connected to the corresponding limit switch brackets, and is respectively used to detect the position information of the left and right APS clamping arms reaching the release position. The limit switch one and the limit switch two are connected to the control unit.

[0012] The limit baffles include limit baffle one and limit baffle two. The number of limit baffle one is two, and the limit baffle one is respectively fixedly connected to one side of the left and right APS clamping arms; the number of limit baffle two is two, and the limit baffle two is respectively fixedly connected to the other side of the left and right APS clamping arms.

[0013] The control unit includes a digital input module, and the digital input module is respectively connected to the limit switch one and the limit switch two through ports.

[0014] The control unit also includes a CPU module, and the CPU module is connected to the digital input module through a port.

[0015] Compared with the prior art, the beneficial effects of the present invention are:

[0016] 1. Compared with the traditional proximity switch, the limit switch can provide a more accurate position detection signal to ensure that the movement state of the hydraulic cylinder is accurately feedback. Through the combination of the limit switches and limit baffles of the left and right APS clamping arms, the synchronism detection of the left and right hydraulic cylinders can be realized, thereby improving the overall accuracy of the APS system;

[0017] 2. A limit switch one is fixedly connected to one side of the middle cross beam, and a limit switch two is fixedly connected to the other side of the middle cross beam, respectively used to detect the position information of the clamping in place of the left and right APS clamping arms, so as to achieve accurate positioning and avoid accidents caused by the incomplete operation of the hydraulic cylinder; A limit switch three 12 is fixedly connected to a limit switch bracket one, and a limit switch four 13 is fixedly connected to a limit switch bracket two, respectively used to detect the position information of the release in place of the left and right APS clamping arms 6, accurately positioning and avoiding accidents caused by the incomplete release of the hydraulic cylinder and the collision of the coke pot car with the hydraulic cylinder;

[0018] 3. Through the combination of the limit switch and the limit baffle, the position information of the clamping in place and the release in place of the hydraulic cylinder can be accurately detected, avoiding the collision accident between the coke pot car and the hydraulic cylinder, thus significantly improving the safety of the system;

[0019] 4. The limit switch can monitor the motion state of the hydraulic cylinder in real time, ensuring that the coke pot car driver can accurately judge whether the hydraulic cylinder is completely released during operation and avoiding misoperation;

[0020] 5. The acquisition unit is connected to the control unit, which is convenient for operators to view the operation state of the limit switch at any time, convenient for maintenance and shortening the maintenance time. Description of the Drawings

[0021] Figure 1 It is a schematic diagram of the structure of the APS stroke control device when it is released in place.

[0022] Figure 2 It is a schematic diagram of the structure of the APS stroke control device when it is clamped in place.

[0023] Figure 3 It is a schematic diagram of the principle of the control unit.

[0024] In the figure: 1. Limit baffle one; 2. Limit baffle two; 3. Limit baffle three; 4. Limit baffle four; 5. Hydraulic cylinder; 6. APS clamping arm; 7. Column; 8. APS clamping device foundation; 9. Middle cross beam; 10 - Limit switch one; 11 - Limit switch two; 12 - Limit switch three; 13 - Limit switch four. Detailed Embodiment

[0025] The present invention will be described in detail below with reference to the accompanying drawings of the specification, but it should be noted that the implementation of the present invention is not limited to the following embodiments.

[0026] The following embodiments are implemented on the premise of the technical solution of the present invention, and the detailed implementation methods and specific operation processes are given, but the protection scope of the present invention is not limited to the following embodiments. The methods used in the following embodiments are all conventional methods unless otherwise specified.

[0027] Embodiment 1

[0028] See Figure 1 , Figure 2 A APS stroke control device includes an APS clamping device, which includes a column 7, an intermediate beam 9, an APS clamping arm 6, a hydraulic cylinder 5, a limit switch 10, a limit switch 2 11, a limit switch 3 12, a limit switch 4 13, a limit baffle 1 1, a limit baffle 2 2, a limit baffle 3 3, and a limit baffle 4 4. The column 7 is arranged on an APS clamping device base 8, and an intermediate beam 9 is fixedly connected to the column 7. The intermediate beam 9 is used to tow the clamping block of the coke tank car and limit the clamping arm of the hydraulic cylinder. The column 7 is a column of the intermediate beam and is used to connect the base of the hydraulic cylinder 5 and the intermediate beam 9. The bottom end of the APS clamping arm 6 is hinged to the column 7, and the middle part of the APS clamping arm 6 is movably hinged to the piston rod of the hydraulic cylinder 5.

[0029] Limit switch 1 10 is fixedly connected to one side of the middle beam 9, and limit switch 2 11 is fixedly connected to the other side of the middle beam 9, and they are respectively used to detect the position information of the left and right APS clamping arms 6 when they are clamped into place; limit switch 3 12 is fixedly connected to limit switch bracket 1, and limit switch 4 13 is fixedly connected to limit switch bracket 2, and they are respectively used to detect the position information of the left and right APS clamping arms 6 when they are released into place. Limit switch bracket 1 and limit switch bracket 2 are respectively fixedly connected to the APS clamping device base 8.

[0030] The limit baffle 1 and the limit baffle 2 are respectively fixedly connected to one side of the left and right APS clamping arms 6, and the limit baffle 1 and the limit baffle 2 are respectively located at the clamping position of the left and right APS clamping arms 6. The limit switch 10 is used to detect the clamping position information of the limit baffle 1, and the limit switch 2 11 is used to detect the clamping position information of the limit baffle 2; the limit baffle 3 3 and the limit baffle 4 4 are respectively fixedly connected to the other side of the left and right APS clamping arms 6, and the limit baffle 3 3 and the limit baffle 4 4 are respectively located at the loosening position of the left and right APS clamping arms 6, the limit switch 3 12 is used to detect the loosening position information of the limit baffle 3 3, and the limit switch 4 13 is used to detect the loosening position information of the limit baffle 4 4; the limit switches 10 to 13 all adopt Pepperl+Fuchs limit switches, which have the characteristics of high reliability and long life, reducing maintenance costs and downtime.

[0031] See Figure 3, the control unit includes a digital input module, which is connected to the limit switch 1 (10) and the limit switch 2 (11) through ports respectively; the control unit further includes a CPU module and a communication module, which are connected to the digital input module through ports. The communication module is connected to the engineer station, facilitating operators to view the position information of the limit switches at any time through the HMI human-machine interaction screen of the engineer station. If one of the limit switch 1 (10) and the limit switch 2 (11) is in the clamping-in-place state and the other is not, an alarm is output; if one of the limit baffle 3 and the limit switch 4 (13) is in the loosening-in-place state and the other is not, an alarm is output, avoiding safety accidents.

[0032] Working process:

[0033] Fabricate the limit switch base plate, drill through holes on the base plate with a diameter of 6 mm, and fixedly connect the limit switches to the limit switch base plate. Weld a limit switch bracket on the APS clamping device base 8 at the front end of the hydraulic cylinder 5. The limit switch bracket is an angle steel and is connected to the limit switch base plate. When the hydraulic cylinder 5 moves, it drives the corresponding limit baffles driven by the left and right APS clamping arms 6. When the limit baffle is in the clamping-in-place or loosening-in-place position, the corresponding limit switch is triggered, that is, it enters the detection area of the limit switch. When the left and right APS clamping arms 6 receive the hoist standby position signal, they perform a loosening operation. After the limit switches 3 (12) and 4 (13) on the bracket respectively receive the detection signals of the limit baffles 3 and 4 on the two APS clamping arms 6, the two APS clamping arms 6 are in the loosening-in-place signal. The coke pot car driver sees the APS hydraulic cylinder 5 loosening-in-place signal and drives the coke pot car to continue moving; when the left and right APS clamping arms 6 receive the APS clamping command issued by the locomotive, they perform a clamping operation; after the limit switches 1 (10) and 2 (11) on the middle crossbeam 9 respectively receive the detection signals of the limit baffles 3 and 4 on the left and right APS clamping arms 6, the two APS clamping arms 6 are in the clamping-in-place signal. The coke pot car driver sees the APS hydraulic cylinder 5 clamping-in-place signal, observes the car locking signal on the vehicle, and the hoist action command signal is issued, waiting for the APS to loosen in place until the running condition is met.

[0034] Compared with traditional proximity switches, the limit switches of the present invention can provide more accurate position detection signals to ensure that the motion state of the hydraulic cylinder is accurately feedback. Through the combination of the limit switches of the left and right APS clamping arms and the limit baffles, the synchronization detection of the left and right hydraulic cylinders can be realized, thereby improving the overall accuracy of the APS system; the first limit switch is fixedly connected to one side of the middle cross beam, and the second limit switch is fixedly connected to the other side of the middle cross beam, which are respectively used to detect the position information of the clamping in place of the left and right APS clamping arms to achieve accurate positioning and avoid accidents caused by the incomplete operation of the hydraulic cylinder; the third limit switch is fixedly connected to the first limit switch bracket, and the fourth limit switch is fixedly connected to the second limit switch bracket, which are respectively used to detect the position information of the release in place of the left and right APS clamping arms for accurate positioning and avoid accidents caused by the incomplete release of the hydraulic cylinder and the collision of the coke pot car with the hydraulic cylinder; through the combination of the limit switch and the limit baffle, the position information of the clamping in place and the release in place of the hydraulic cylinder can be accurately detected to avoid the collision accident between the coke pot car and the hydraulic cylinder, thereby significantly improving the safety of the system; the limit switch can monitor the motion state of the hydraulic cylinder in real time to ensure that the coke pot car driver can accurately judge whether the hydraulic cylinder is completely released during operation and avoid misoperation; the acquisition unit is connected to the control unit, which is convenient for the operators to view the operation state of the limit switch at any time, convenient for maintenance and shortening the maintenance time.

Claims

1. An APS stroke control device, comprising an APS clamping device. The APS clamping device includes a column, an intermediate cross beam, an APS clamping arm, and a hydraulic cylinder. The column is arranged on the basis of the APS clamping device, and the intermediate cross beam is fixedly connected to the column. The bottom end of the APS clamping arm is hinged to the column, and the middle part of the APS clamping arm is movably hinged to the piston rod of the hydraulic cylinder. It is characterized in that, It further includes a collection unit and a control unit. The collection unit is respectively connected to the intermediate crossbeam and the APS clamping arm. The collection unit is used to collect the information of the APS clamping arm reaching the open position and the closed position, and the collection unit is connected to the control unit.

2. The APS stroke control device according to claim 1, characterized in that, The said collection unit includes limit switches and limit baffles. The limit baffles are respectively fixedly connected to the left and right APS clamping arms. The limit baffles are respectively located at the positions where the left and right APS clamping arms reach the clamping position and the releasing position. The limit switches are respectively fixedly connected to the intermediate crossbeam and the limit switch brackets. The limit switches are respectively used to detect the position information of the corresponding limit baffles. The limit switch brackets are respectively fixedly connected to the APS clamping device base.

3. An APS stroke control device according to claim 2, characterized in that, The said limit switches include limit switch one and limit switch two. The number of limit switch one is two. The limit switch one is respectively fixedly connected to both sides of the intermediate crossbeam and is respectively used to detect the position information of the left and right APS clamping arms reaching the clamping position. The number of limit switch two is two. The limit switch two is respectively fixedly connected to the corresponding limit switch brackets and is respectively used to detect the position information of the left and right APS clamping arms reaching the releasing position. The limit switch one and the limit switch two are connected to the control unit.

4. An APS stroke control device according to claim 2, characterized in that, The said limit baffles include limit baffle one and limit baffle two. The number of limit baffle one is two. The limit baffle one is respectively fixedly connected to one side of the left and right APS clamping arms. The number of limit baffle two is two. The limit baffle two is respectively fixedly connected to the other side of the left and right APS clamping arms.

5. An APS stroke control device according to claim 3, characterized in that, The said control unit includes a digital input module. The digital input module is respectively connected to the limit switch one and the limit switch two through ports.

6. An APS stroke control device according to claim 5, characterized in that, The said control unit further includes a CPU module. The CPU module is connected to the digital input module through a port.

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