A method for controlling the tipper unloading operation process
By optimizing the unloading process control of the tippler and using sensors and encoders to determine the cycle mode, the problems of difficult equipment coordination and long air conditioning evacuation time for tippler vehicles have been solved, resulting in a significant improvement in the unloading efficiency of the tippler.
Patent Information
- Application Number
- CN202210984029.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2022-08-16
- Publication Date
- 2025-10-31
- Estimated Expiration
- 2042-08-16
AI Technical Summary
At present, the tippler has design flaws in the interlocking of various systems during the unloading operation, making equipment coordination difficult and human cooperation inadequate. This leads to frequent accidents such as train car collisions and derailments. In addition, the air-conditioning evacuation car journey is time-consuming, affecting operational efficiency.
By readjusting the empty hook limit, the empty car coupling detection photoelectric sensor, the absolute encoder, and the axle limit on the transfer platform, the conditions for the first unloading cycle are jointly determined, the first cycle and non-first cycle modes are distinguished, and the unloading operation process is optimized, including direct positioning of loaded cars, empty car dispatching operation, and final cycle judgment, thereby shortening the unloading cycle time.
It has achieved a significant improvement in the unloading efficiency of the tippler, saving 6-8 seconds in the first cycle, 6-8 seconds in subsequent cycles, and 4-6 seconds in the last cycle, with the overall unloading efficiency increased to 19-20 cycles per hour.
Smart Images

Figure CN115402819B_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of tippler control technology, and in particular to a tippler tipping and unloading operation process control method. Background Technology
[0002] A tippler is a large mechanical loading and unloading device that can tilt or overturn rail vehicles for unloading. It is suitable for ports with high transport volumes and enterprises in metallurgy, coal, and thermal power industries. However, current tipplers have many problems during unloading operations, mainly including: flawed interlocking designs in various systems; single interlocking between individual devices; large distances between the three operating platforms, leading to difficulties in coordinating subsystems; and inadequate human coordination, which can easily cause collisions and derailments involving multiple railcars. Although there are personnel inspecting the tippler exit, the loaded cars must still be manually pulled back into the tippler rotor, severely impacting operational efficiency.
[0003] Currently, in most dual-vehicle tipplers, the air conditioning venting vehicle takes a long time to travel during each unloading cycle, and other mechanisms are waiting for the air conditioning to be in place, wasting a significant amount of unloading time. This results in low unloading efficiency. Summary of the Invention
[0004] The purpose of this application is to address the problem that the air conditioning evacuation vehicle travel time is long in each unloading cycle, and other mechanisms are waiting for the air conditioning to be in place, which wastes unloading time. This application provides a method for controlling the unloading operation process of a tipper.
[0005] In some embodiments of this application, by readjusting the empty hook limit, the empty car coupling detection photoelectric sensor, the absolute encoder, and the axle limit on the transfer platform, the conditions for the first unloading cycle are jointly determined. Under the condition of readjusting the traction in each first cycle or equivalent first cycle, the process is distinguished from the conventional cycle process. The loaded car is directly tractioned into the body for positioning without emptying and then positioning.
[0006] In some embodiments of this application, during non-first-cycle unloading, the double empty cars are first readjusted and pushed to the transfer platform, and the air conditioner performs empty car operation. Then, the double empty cars are readjusted and pushed into the tipper body for tipping and unloading, making the connection between the various mechanisms of the entire cycle more tight.
[0007] In some embodiments of this application, the final cycle is determined by the axle counting sensor between the loaded car line clamp wheel and the main rotor and at the entrance of the transfer platform, combined with the travel distance fed back by the absolute encoder on the resetting machine. In the case of the final cycle operation, the resetting machine directly pushes the empty car to the transfer platform for empty car operation, further shortening the unloading cycle time.
[0008] Some embodiments of this application provide a method for controlling the tipper unloading operation process, including:
[0009] Step 1: Obtain the data of the loaded vehicles to be processed, and determine whether the tipper is in its first cycle based on the data.
[0010] Step 2: Based on the judgment result, select the first loop mode or the non-first loop mode, and execute the first loop mode or the non-first loop mode according to the preset instructions;
[0011] Step 3: After a single loop ends, obtain the data of the loaded vehicles to be processed, and determine whether it is the last loop. If it is the last loop, end the loop.
[0012] In some embodiments of this application, the first loop includes:
[0013] The reloaded vehicle directly enters the preset position on the tippler body;
[0014] The tippler body unloads the vehicle and is readjusted back to the receiving position.
[0015] In some embodiments of this application, the non-first-time loop includes:
[0016] The loaded car slows down and enters the tippler body to collide with the empty car;
[0017] Move the empty car back to the traction platform;
[0018] The pushcart was readjusted and returned to the tipper body;
[0019] The tippler body unloads the vehicle and is readjusted to return to the receiving position.
[0020] After unloading is complete, check if it is the last loop. If not, continue executing the non-first loop process.
[0021] In some embodiments of this application, step three further includes:
[0022] When the judgment result is the end of the cycle, the empty car is readjusted to the traction platform to empty.
[0023] In some embodiments of this application, the step of executing a non-first-time loop module according to a preset instruction includes:
[0024] S1: Send readjustment and reset instructions, which include: reset readjustment and re-adjustment for receiving vehicles, reset readjustment and re-adjustment for lifting heavy hook pins, reset readjustment and re-adjustment for lifting empty hook pins, reset readjustment and re-adjustment for raising arms, and reset readjustment and re-adjustment for lowering arms.
[0025] S2: Set the vehicle receiving command according to the first preset delay time, and reset the vehicle receiving hook;
[0026] S3: When the double hook is closed, reset the car receiving command and stop receiving cars;
[0027] S4: The traction machine pulls the entire train of loaded cars according to the second preset delay time setting and readjustment command;
[0028] S5: When the entire train of loaded cars reaches the preset position, reset the traction command and stop the entire train of loaded cars;
[0029] S6: After uncoupling is completed, the vehicle towing command is reset according to the second preset delay time, and vehicle towing begins;
[0030] S7: When both vehicles reach the preset position, reset the traction command, stop traction, and set the empty hook pin command according to the third preset delay time.
[0031] S8: Based on the second preset delay time, set the vehicle reception command to be readjusted and the vehicle reception is reversed;
[0032] S9: After the two vehicles arrive at the preset position and stop, the lifting hook command is set according to the third preset delay time.
[0033] S10: Obtain the position information of the two vehicles. When there is a vehicle in the tipper, set the vehicle towing command according to the second delay time.
[0034] S11: When the vehicle is towed forward to the boom-raised position and the vehicle is to be received and moved back to the boom-raised position, the boom-raised command is set according to the second preset delay time.
[0035] S12: According to the second preset delay time, set the vehicle receiving command and control the vehicle to return to the boom position at high speed;
[0036] S13: Reset and readjust the traction command, stop traction, set the arm lowering command according to the third preset delay time, and start lowering the arm according to the second delay time.
[0037] When the preset conditions for receiving the vehicle and hitting the hook are met, return to S1 and start the cycle of unloading the vehicle.
[0038] In some embodiments of this application, the step of executing the first loop mode according to a preset instruction further includes:
[0039] S6-2: Set the traction command to readjust according to the first preset delay time;
[0040] S7-2: Set and readjust the empty hook pin command according to the second preset delay time;
[0041] When S6 is completed and the first double-carriage reaches the preset position and stops, execute S6-2;
[0042] When S6-2 is executed and the first section of the heavy vehicle is positioned and then lifted, S7-2 is executed.
[0043] After S7-2 is executed, S10 is executed.
[0044] In some embodiments of this application, when the determination result is the end of the loop, it includes:
[0045] S3-2: Set the traction command according to the second preset delay time;
[0046] When S3 is completed and the loaded car is the last car, execute S3-2. When both cars reach the preset position, there is a car on the traction platform, and the last car directly pushes the two empty cars, execute S7.
[0047] In some embodiments of this application, when the determination result is the end of the loop, it further includes...
[0048] S3-3: Set the vehicle reception command to readjust according to the second preset delay time;
[0049] After S8 is executed, and the loaded car is the last car, execute S3-3 and then execute S11.
[0050] Some embodiments of this application also include:
[0051] When the tipper flips to a preset angle, it acquires a real-time pressure value. If the real-time pressure value is less than the preset minimum tipping pressure value, the tipper will flip back.
[0052] Compared with the prior art, the rollover control method of this application has the following advantages:
[0053] (1) Under the condition of re-adjusting the traction car in each first cycle or equivalent first cycle, the traction car is directly moved to the body for positioning, which is different from the regular cycle process. The traction car is not emptied and then positioned. The first cycle can save 6-8 seconds.
[0054] (2) When unloading during non-first cycle, first adjust and push the double empty cars to the transfer platform, and the air conditioner performs empty car operation. Then, adjust and push the double cars to be positioned in the tipper body for tipping and unloading, so that the connection between the various mechanisms of the whole cycle is tighter and the air conditioner waiting time can be saved by 6-8 seconds per cycle.
[0055] (3) In the final cycle operation, the re-adjustment machine directly pushes the empty car to the car transfer platform to perform the empty car operation, which can save 4-6 seconds in the final cycle.
[0056] (4) Through the optimized process control logic, the unloading efficiency of the tippler can reach 19-20 cycles per hour, which greatly improves the unloading efficiency. Attached Figure Description
[0057] Figure 1 This is a flowchart illustrating a preferred embodiment of a tippler unloading operation control method according to the present application.
[0058] Figure 2This is a logical schematic diagram of a tippler unloading operation process control method in a preferred embodiment of this application. Detailed Implementation
[0059] The specific embodiments of this application will be described in further detail below with reference to the accompanying drawings and examples. The following examples are used to illustrate this application, but are not intended to limit the scope of this application.
[0060] In the description of this application, it should be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.
[0061] The terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, unless otherwise stated, "a plurality of" means two or more.
[0062] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.
[0063] like Figure 1 and Figure 2 As shown in the preferred embodiment of this application, a tippler unloading operation process control method includes:
[0064] Step 1: Obtain the data of the loaded vehicles to be processed, and determine whether the tipper is in its first cycle based on the data.
[0065] Step 2: Based on the judgment result, select the first loop mode or the non-first loop mode, and execute the first loop mode or the non-first loop mode according to the preset instructions;
[0066] Step 3: After a single loop ends, obtain the data of the loaded vehicles to be processed, and determine whether it is the last loop. If it is the last loop, end the loop.
[0067] Specifically, non-first-time loops include:
[0068] The loaded car slows down and enters the tippler body to collide with the empty car;
[0069] Move the empty car back to the traction platform;
[0070] The pushcart was readjusted and returned to the tipper body;
[0071] The tippler body unloads the vehicle and is readjusted to return to the receiving position.
[0072] After unloading is complete, check if it is the last loop. If not, continue executing the non-first loop process.
[0073] Specifically, when executing preset instructions to execute non-first loop modules, it includes:
[0074] S1: Send readjustment and reset instructions, which include: reset readjustment and re-adjustment for receiving vehicles, reset readjustment and re-adjustment for lifting heavy hook pins, reset readjustment and re-adjustment for lifting empty hook pins, reset readjustment and re-adjustment for raising arms, and reset readjustment and re-adjustment for lowering arms.
[0075] S2: Set the vehicle receiving command according to the first preset delay time, and reset the vehicle receiving hook;
[0076] S3: When the double hook is closed, reset the car receiving command and stop receiving cars;
[0077] S4: The traction machine pulls the entire train of loaded cars according to the second preset delay time setting and readjustment command;
[0078] S5: When the entire train of loaded cars reaches the preset position, reset the traction command and stop the entire train of loaded cars;
[0079] S6: After uncoupling is completed, the vehicle towing command is reset according to the second preset delay time, and vehicle towing begins;
[0080] S7: When both vehicles reach the preset position, reset the traction command, stop traction, and set the empty hook pin command according to the third preset delay time.
[0081] S8: Based on the second preset delay time, set the vehicle reception command to be readjusted and the vehicle reception is reversed;
[0082] S9: After the two vehicles arrive at the preset position and stop, the lifting hook command is set according to the third preset delay time.
[0083] S10: Obtain the position information of the two vehicles. When there is a vehicle in the tipper, set the vehicle towing command according to the second delay time.
[0084] S11: When the vehicle is towed forward to the boom-raised position and the vehicle is to be received and moved back to the boom-raised position, the boom-raised command is set according to the second preset delay time.
[0085] S12: According to the second preset delay time, set the vehicle receiving command and control the vehicle to return to the boom position at high speed;
[0086] S13: Reset and readjust the traction command, stop traction, set the arm lowering command according to the third preset delay time, and start lowering the arm according to the second delay time.
[0087] When the preset conditions for receiving the vehicle and hitting the hook are met, return to S1 and start the cycle of unloading the vehicle.
[0088] It is understandable that in the above embodiment, during non-first cycle unloading, the double empty cars are first readjusted and pushed to the transfer platform, and the air conditioner performs empty car operation. Then, the double empty cars are readjusted and pushed into the tipper body for tipping and unloading, making the connection between the various mechanisms of the entire cycle more tight, and saving 6-8 seconds of air conditioner waiting time in each cycle.
[0089] In a preferred embodiment of this application, the first loop includes:
[0090] The reloaded vehicle directly enters the preset position on the tippler body;
[0091] The tippler body unloads the vehicle and is readjusted back to the receiving position.
[0092] Specifically, when executing the first loop mode according to preset instructions, it includes:
[0093] S1: Send readjustment and reset instructions, which include: reset readjustment and re-adjustment for receiving vehicles, reset readjustment and re-adjustment for lifting heavy hook pins, reset readjustment and re-adjustment for lifting empty hook pins, reset readjustment and re-adjustment for raising arms, and reset readjustment and re-adjustment for lowering arms.
[0094] S2: Set the vehicle receiving command according to the first preset delay time, and reset the vehicle receiving hook;
[0095] S3: When the double hook is closed, reset the car receiving command and stop receiving cars;
[0096] S4: The traction machine pulls the entire train of loaded cars according to the second preset delay time setting and readjustment command;
[0097] S5: When the entire train of loaded cars reaches the preset position, reset the traction command and stop the entire train of loaded cars;
[0098] S6: After uncoupling is completed, the vehicle towing command is reset according to the second preset delay time, and vehicle towing begins;
[0099] S6-2: Set the traction command to readjust according to the first preset delay time;
[0100] S7-2: Set and readjust the empty hook pin command according to the second preset delay time;
[0101] When S6 is completed and the first double-carriage reaches the preset position and stops, execute S6-2;
[0102] When S6-2 is executed and the first section of the heavy vehicle is positioned and then lifted, S7-2 is executed.
[0103] After S7-2 is executed, S10 is executed.
[0104] It is understood that in the above embodiments, under the condition of readjusting the traction in each first cycle or equivalent first cycle, the readjustment directly pulls the loaded trolley to the body for positioning, unlike the conventional cycle process, without performing the emptying and positioning action, which can save 6-8 seconds in the first cycle.
[0105] In a preferred embodiment of this application, when the judgment result is the end of the cycle, the empty car is readjusted to the traction platform to empty.
[0106] Specifically, when the judgment result is the end of the loop, it includes:
[0107] S1: Send readjustment and reset instructions, which include: reset readjustment and re-adjustment for receiving vehicles, reset readjustment and re-adjustment for lifting heavy hook pins, reset readjustment and re-adjustment for lifting empty hook pins, reset readjustment and re-adjustment for raising arms, and reset readjustment and re-adjustment for lowering arms.
[0108] S2: Set the vehicle receiving command according to the first preset delay time, and reset the vehicle receiving hook;
[0109] S3: When the double hook is closed, reset the car receiving command and stop receiving cars;
[0110] S3-2: Set the traction command according to the second preset delay time;
[0111] When S3 is completed and the loaded car is the last car, execute S3-2. When both cars reach the preset position, there is a car on the traction platform, and the last car directly pushes the two empty cars, execute S7.
[0112] Specifically, when the judgment result is the end of the loop, it also includes:
[0113] S1: Send readjustment and reset instructions, which include: reset readjustment and re-adjustment for receiving vehicles, reset readjustment and re-adjustment for lifting heavy hook pins, reset readjustment and re-adjustment for lifting empty hook pins, reset readjustment and re-adjustment for raising arms, and reset readjustment and re-adjustment for lowering arms.
[0114] S2: Set the vehicle receiving command according to the first preset delay time, and reset the vehicle receiving hook;
[0115] S3: When the double hook is closed, reset the car receiving command and stop receiving cars;
[0116] S4: The traction machine pulls the entire train of loaded cars according to the second preset delay time setting and readjustment command;
[0117] S5: When the entire train of loaded cars reaches the preset position, reset the traction command and stop the entire train of loaded cars;
[0118] S6: After uncoupling is completed, the vehicle towing command is reset according to the second preset delay time, and vehicle towing begins;
[0119] S7: When both vehicles reach the preset position, reset the traction command, stop traction, and set the empty hook pin command according to the third preset delay time.
[0120] S8: Based on the second preset delay time, set the vehicle reception command to be readjusted and the vehicle reception is reversed;
[0121] S3-3: Set the vehicle reception command to readjust according to the second preset delay time;
[0122] S11: When the vehicle is towed forward to the boom-raised position and the vehicle is to be received and moved back to the boom-raised position, the boom-raised command is set according to the second preset delay time.
[0123] After S8 is executed, and the loaded car is the last car, execute S3-3 and then execute S11.
[0124] It is understandable that in the above embodiments, during the final cycle operation, the resetting machine directly pushes the empty car to the transfer platform for empty car operation, which can save 4-6 seconds in the final cycle.
[0125] In a preferred embodiment of this application, it further includes:
[0126] When the tipper flips to a preset angle, it acquires a real-time pressure value. If the real-time pressure value is less than the preset minimum tipping pressure value, the tipper will flip back.
[0127] Specifically, when the tipper rotates to approximately 45-70°, a pressure test is performed. If the pressure is insufficient to meet the minimum requirements, the tipping stops, the tipping is reversed, and the pressing action is repeated. This ensures the safety of the tipping process.
[0128] In summary, the embodiments of the present invention provide a tippler unloading operation process control method. Through the optimized process control logic, the tippler unloading operation efficiency can reach 19-20 cycles per hour, which greatly improves the unloading efficiency.
[0129] According to the first concept of this application, by readjusting the empty hook limit, the empty car coupling detection photoelectric sensor, the absolute encoder, and the axle limit on the transfer platform, the conditions for the first unloading cycle are jointly determined. Under the condition of readjusting the traction in each first cycle or equivalent first cycle, it is distinguished from the conventional cycle process and the loaded car is directly tractioned into the body for positioning without emptying and then positioning.
[0130] According to the second concept of this application, during non-first cycle unloading, the double empty cars are first readjusted and pushed to the transfer platform, and the air conditioner performs empty car operation. Then, the double cars are readjusted and pushed into the tipper body for tipping and unloading, making the connection between the various mechanisms of the entire cycle more tight.
[0131] According to the third concept of this application, the final cycle is determined by the axle counting sensor between the loaded car line clamp wheel and the main rotor and at the entrance of the transfer platform, combined with the travel distance fed back by the absolute encoder on the resetting machine. In the case of the final cycle operation, the resetting machine directly pushes the empty car to the transfer platform for empty car operation, further shortening the unloading cycle time.
[0132] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and not to limit it. Although the present invention has been described in detail with reference to the above embodiments, those skilled in the art should understand that modifications or equivalent substitutions can still be made to the specific implementation of the present invention. Any modifications or equivalent substitutions that do not depart from the spirit and scope of the present invention should be covered within the scope of protection of the claims of the present invention.
Claims
1. A method for controlling the tipper unloading operation process, characterized in that, include: Step 1: Obtain the data of the loaded vehicles to be processed, and determine whether the tipper is in its first cycle based on the data. Step 2: Based on the judgment result, select the first loop mode or the non-first loop mode, and execute the first loop mode or the non-first loop mode according to the preset instructions; Step 3: After a single loop ends, obtain the data of loaded vehicles to be processed, and determine whether it is the last loop. If it is the last loop, end the loop. The non-first-time loop includes: The loaded car slows down and enters the tippler body to collide with the empty car; Move the empty car back to the traction platform; The pushcart was readjusted and returned to the tipper body; The tippler body unloads the vehicle and is readjusted to return to the receiving position; After unloading is complete, determine if it is the last loop. If it is not the last loop, continue executing the non-first loop process. Among them, executing non-first loop modes according to preset instructions includes: S1: Send readjustment and reset instructions, which include: reset readjustment and re-adjustment for receiving vehicles, reset readjustment and re-adjustment for lifting heavy hook pins, reset readjustment and re-adjustment for lifting empty hook pins, reset readjustment and re-adjustment for raising arms, and reset readjustment and re-adjustment for lowering arms. S2: Set the vehicle receiving command according to the first preset delay time, and reset the vehicle receiving hook; S3: When the double hook is closed, reset the readjustment car receiving command and stop car receiving; S4: The traction machine pulls the entire train of loaded cars according to the second preset delay time setting and readjustment command; S5: When the entire train of loaded cars reaches the preset position, reset the traction command and stop the entire train of loaded cars; S6: After uncoupling is completed, the vehicle towing command is reset according to the second preset delay time, and vehicle towing begins; S7: When both vehicles reach the preset position, reset the traction command, stop traction, and set the empty hook pin command according to the third preset delay time. S8: Based on the second preset delay time, set the vehicle reception command to be readjusted and the vehicle reception is reversed; S9: After the two vehicles arrive at the preset position and stop, the lifting hook command is set according to the third preset delay time. S10: Obtain the position information of the two vehicles. When there is a vehicle in the tipper, set the vehicle towing command according to the second delay time. S11: When the vehicle is towed forward to the boom-raised position and the vehicle is to be received and moved back to the boom-raised position, the boom-raised command is set according to the second preset delay time. S12: According to the second preset delay time, set the vehicle receiving command and control the vehicle to return to the boom position at high speed; S13: Reset and readjust the traction command, stop traction, set the arm lowering command according to the third preset delay time, and start lowering the arm according to the second delay time. When the preset conditions for receiving the vehicle and hitting the hook are met, return to S1 and start the cycle of unloading.
2. The tippler unloading operation process control method as described in claim 1, characterized in that, The first loop includes: The reloaded vehicle directly enters the preset position on the tippler body; The tippler body unloads the vehicle and is readjusted back to the receiving position.
3. The tippler unloading operation process control method as described in claim 2, characterized in that, Step three also includes: When the judgment result is the end of the cycle, the empty car is readjusted to the traction platform to empty.
4. The tippler unloading operation process control method as described in claim 3, characterized in that, When executing the first loop mode according to the preset instruction, it also includes: S6-2: Set the readjustment command for traction according to the first preset delay time; S7-2: Set and readjust the empty hook pin command according to the second preset delay time; After S6 is executed and the first double-carriage train reaches the preset position and stops, execute S6-2; After S6-2 is executed and the first section of the loaded vehicle is positioned and then lifted, execute S7-2; After S7-2 is executed, S10 is executed.
5. The tippler unloading operation process control method as described in claim 4, characterized in that, When the judgment result is the end of the loop, it includes: S3-2: Set the traction command according to the second preset delay time; When S3 is completed and the loaded car is the last car, execute S3-2. When both cars reach the preset position, there is a car on the traction platform, and the last car directly pushes the two empty cars, execute S7.
6. The tippler unloading operation process control method as described in claim 5, characterized in that, When the judgment result is the end of the loop, it also includes S3-3: Set the vehicle reception command to readjust according to the second preset delay time; After S8 is executed, and the loaded car is the last car, execute S3-3 and then execute S11.
7. The tippler unloading operation process control method as described in any one of claims 3-6, characterized in that, Also includes: When the tipper flips to a preset angle, it acquires a real-time pressure value. If the real-time pressure value is less than the preset minimum tipping pressure value, the tipper will flip back.
Citation Information
Patent Citations
Car dumper system allowing locomotive to pass and using method of car dumper system
CN103287873A
Tipper system
CN207596115U