Automatic support protection device and application method thereof

Abstract

The present invention relates to an automatic support and protection device and its application method. The automatic support and protection device includes a support column, a base, a support arm, a drive system, a detection sensor, a first position sensor, and a second position sensor. The bottom of the support column is provided with a base, and the bottom of the base is provided on the tail car platform. A support arm is provided on one side of the upper end of the support column. The detection sensor is provided on the support arm. The output end of the drive system is connected to one side of the middle part of the support column, and the bottom is provided on the tail car platform. The first position sensor and the second position sensor are respectively installed on a part of the tail car head. The base, support arm, drive system and detection sensor provided on the two support columns are symmetrically provided. Through this mechanism, the hidden dangers of manual on-site operation, such as the need to constantly confirm the position of the tail car and the main machine, the lifting state of the tail car, and the easy pressure relief, oil leakage, and equipment damage of the pitch hydraulic cylinder of the tail car head, are solved.

Description

Technical Field

[0001] The present invention relates to the technical field of bulk material conveying equipment, and in particular to an automatic support and protection device and an application method thereof. Background Art

[0002] Bucket-wheel stackers are currently the most widely used equipment in the bulk material handling industry. They offer high efficiency, automated stacking and reclaiming operations, and come in a variety of tail car configurations, with semi-elevating tail cars being particularly popular. However, the vast majority of these semi-elevating bucket-wheel stackers utilize hydraulic cylinders to raise and lower the active tail car portion. Switching between stacking and reclaiming with a semi-elevating tail car is typically performed on-site via a local control panel or from the operator's cab based on feedback from on-site sensors.

[0003] Disadvantages: When operating manually on-site, it is necessary to constantly confirm the position of the tail car and the main machine, as well as the lifting and lowering status of the tail car, which takes a long time to change the action. Especially when operating at night, it is more difficult to identify the coordination status of the tail car and the main machine, which is prone to misoperation.

[0004] After the tail car is moved to the stacking position, the head of the tail car is supported only by the hydraulic cylinder. Although the sealing performance of the current hydraulic system is very good, it cannot completely avoid the occurrence of hydraulic cylinder pressure relief, oil leakage and other faults, which in turn causes the head of the tail car to leak due to hydraulic cylinder pressure and fall onto the main machine, damaging the equipment on the main machine, such as the hopper, rotary platform, rotary drive, etc., posing a safety hazard. Summary of the Invention

[0005] The present invention provides an automatic support and protection device and an application method thereof, which solves the hidden dangers of manual on-site operation, such as the need to constantly confirm the position of the tail car and the main machine, the lifting and lowering status of the tail car, and the easy pressure release, oil leakage, and equipment damage of the pitch hydraulic cylinder of the tail car head.

[0006] The technical solution of the present invention to solve the above technical problems is as follows:

[0007] An automatic support and protection device includes a support column, a base, a support arm, a drive system, a detection sensor, a first position sensor and a second position sensor. The base is provided at the bottom of the support column, and the bottom of the base is provided on the tail car platform. A support arm is provided on one side of the upper end of the support column, and the detection sensor is provided on the support arm. The output end of the drive system is connected to one side of the middle part of the support column, and the bottom of the drive system is provided on the tail car platform. The first position sensor and the second position sensor are respectively installed on a part of the head of the tail car. There are two support columns, and the bases, support arms, drive systems and detection sensors provided on the two support columns are symmetrically arranged.

[0008] The beneficial effect of adopting the above-mentioned further solution is that the drive system is used to change the opening and contraction of the support columns, and the support columns are used to support the head of the tail car during stacking. The tail car pitch hydraulic cylinder is activated only when the tail car is changed, thereby avoiding accidents caused by problems with the hydraulic system and thus damage to the equipment. This device has a simple structure and is lightweight. The support columns can be directly added to the original tail car structure. The cost of adding this device has a small impact on the cost of the entire machine, but it can greatly improve the safety of the semi-lift tail car. The drive system of this device is not shared with the original hydraulic system of the tail car, which can reduce the possibility of the device being unable to be driven due to a failure of the hydraulic system, thereby improving the reliability of the device during use.

[0009] Furthermore, the support arms provided on the two support columns are arranged opposite to each other.

[0010] The beneficial effect of adopting the above further solution is that the support arms provided on the two support columns are arranged opposite each other to support the head of the tail car. When stacking materials, the head of the tail car is supported by the support columns, and the tail car pitch hydraulic cylinder is activated only when the tail car is changed. This can avoid accidents caused by problems with the hydraulic system and thus damage to the equipment.

[0011] Furthermore, the two drive systems are arranged between the two support columns, and the output ends of the two drive systems are arranged opposite to the positions where the two support columns are connected;

[0012] Alternatively, the two driving systems are respectively arranged on the outsides of the two supporting columns, and the output ends of the two driving systems are arranged opposite to the positions where the two supporting columns are connected.

[0013] The beneficial effect of adopting the above further solution is that the drive systems provided on the two support columns are arranged relative to each other or opposite to each other, so that the drive systems can be set in multiple directions according to the on-site environment, and the two support columns can be opened relative to each other or opposite to each other.

[0014] Furthermore, a fixing member is provided on one side of the middle portion of the support column, and a first rotating member is provided at the output end of the driving system, and the first rotating member is rotatably connected to the fixing member.

[0015] The beneficial effect of adopting the above-mentioned further scheme is that by arranging a first rotating member at the output end of the driving system to be rotatably connected with the fixed member on the support column, when the output end of the driving system acts on the support column, the support column can be rotated with the fixed member as the axis and in the rotation direction of the first rotating member, thereby causing the top end of the support column to open or retract.

[0016] Furthermore, the bottom of the support column is fixedly connected to the top of the base, and the base is rotatably connected to the tail car platform through a bearing seat.

[0017] The beneficial effect of adopting the above further solution is that the bottom of the support column is fixedly connected to the top of the base, so that the base and the support column rotate together. The base is rotatably connected to the tail car platform via the bearing seat, so that when the base and the support column rotate together, they rotate about the rotation axis of the bearing seat, so that the bottom of the support column only rotates and does not expand or retract.

[0018] On the other hand, an application method of an automatic support and protection device is based on an automatic support and protection device, and the application method includes:

[0019] S1: When the head of the tail car is in a pile state, the detection sensor detects that the head of the tail car is located on the support arm set between the two support columns, and the head of the tail car is supported by the support columns;

[0020] S2: When the tail car head is in the material-retrieving state, the tail car head drops down to the lowest position, and the two support columns open to both sides in the opposite manner, entering the non-working state.

[0021] Furthermore, based on step S1, the following steps are included when converting the stacking material into the material:

[0022] S11: When the tail car head needs to be changed to the material-retrieving state, the PLC system controls the tail car head to rise until it reaches the highest position. The rising position sensor senses the tail car head and transmits the position signal to the PLC system.

[0023] S12: The PLC system controls the drive systems on the two support columns to open the two support columns to both sides in opposite directions;

[0024] S13: The second position sensor detects that the support column is opened to the non-working position and transmits a signal to the PLC system;

[0025] S14: The PLC system controls the tail car head to descend until it reaches the lowest position. After the tail car head reaches the lowest position, the sensor senses that the tail car head has reached the material retrieving position and transmits the signal to the PLC system.

[0026] S15: The PLC system controls the tail car head to stop descending.

[0027] Furthermore, based on step S2, the following steps are included when retrieving and converting the material into a pile:

[0028] S21: When the tail car head needs to be transformed into a pile shape, the PLC system controls the tail car head to rise upward until it reaches the highest position. After the rising position sensor senses the highest position of the tail car head, it transmits the signal to the PLC system;

[0029] S22: The PLC system controls the drive systems on both sides of the tail car to retract the two support columns inward relative to each other to the working position;

[0030] S23: The first position sensor detects that the support column has retracted to the working limit and transmits a signal to the PLC system;

[0031] S24: The PLC system controls the tail car head to descend until the detection sensor detects that the tail car head falls onto the support arm provided between the two support columns;

[0032] S25: The automatic support protection device enters the working state.

[0033] Furthermore, an application method of the automatic support protection device is based on the specific application process of steps S11-S15:

[0034] S111: The PLC system controls the tail car hydraulic station to start, and the tail car head rises until it reaches the highest position. After the sensor senses the position, it transmits the signal to the PLC system. The hydraulic system opens the hook between the main engine and the tail car, and the PLC system controls the main engine to move forward and separate from the tail car.

[0035] S112: When the main engine reaches a position where the tail car can be changed, the PLC system controls the main engine to stop moving;

[0036] S113: The PLC system controls the drive systems on the two support columns to open the two support columns in opposite directions. The second position sensor detects that the support columns are opened to the non-working position and transmits the signal to the PLC system.

[0037] S114: The PLC system controls the tail car head to start descending. When it descends to the material taking position, the descending position sensor sends a signal to the PLC system, and the PLC system controls the tail car hydraulic station to stop working;

[0038] S115: The PLC system controls the main engine to move backward until the main engine and the tail car are in place;

[0039] S116: When the main engine and the tail vehicle are in place, the hooks of the tail vehicle and the main engine are automatically locked, connecting the tail vehicle and the main engine into a whole.

[0040] Furthermore, an application method of the automatic support protection device is based on the specific application process of steps S21-S25:

[0041] S211: The PLC system controls the tail car hydraulic station to start, opening the hook between the main engine and the tail car. The PLC system controls the main engine to move forward and separate from the tail car.

[0042] S212: When the main engine reaches a position where the tail car can be changed, the PLC system controls the main engine to stop moving;

[0043] S213: The PLC system controls the hydraulic cylinder of the tail car head to start, and the tail car head rises. When it rises to the highest position, the rising position sensor senses it and transmits the signal to the PLC system;

[0044] S214: The PLC system controls the drive systems on the two support columns to retract the two support columns inwardly toward each other to a working position. After the first position sensor detects that the support columns have retracted to the working position, it transmits a signal to the PLC system.

[0045] S215: The PLC system controls the tail car head to descend. When the detection sensor senses that the tail car head is located on the support arm provided between the two support columns, the PLC system controls the tail car hydraulic station to stop working and the automatic support protection device enters the working state.

[0046] S216: The PLC system controls the main engine to move backward until the main engine and the tail car are in place;

[0047] S217: When the main engine and the tail car are in place, the hooks of the tail car and the main engine are automatically locked, connecting the tail car and the main engine into a whole.

[0048] The beneficial effect of adopting the above scheme is that the opening and contraction of the support column is changed by utilizing the drive of the drive system, the head of the tail car is supported by the support column when stacking materials, and the tail car pitch hydraulic cylinder is started only when the tail car is changed, so as to avoid accidents caused by problems with the hydraulic system and thus damage to the equipment. The structure of this device is simple and light in weight. The support column can be directly added to the original tail car structure. The cost of increasing this device has little impact on the cost of the whole machine, but it can greatly improve the safety of the semi-lifting tail car. The drive system of this device is not shared with the original hydraulic system of the tail car, which can reduce the possibility of the device being unable to be driven due to a failure of the hydraulic system, thereby improving the reliability of the device in use. The automatic control program of this device can be directly written using the PLC system of the original equipment. The control logic is clear and can be controlled by one button in the driver's cab or the local control box to realize automatic change control of the semi-lifting tail car without the need for additional operating steps. BRIEF DESCRIPTION OF THE DRAWINGS

[0049] Figure 1 This is a structural diagram of an automatic support and protection device in cooperation with the tail vehicle head according to the present invention;

[0050] Figure 2 This is a structural schematic diagram of an automatic support and protection device of the present invention in an open state;

[0051] Figure 3 This is a structural schematic diagram of an automatic support and protection device in working state according to the present invention;

[0052] Figure 4Another structural schematic diagram of an automatic support and protection device of the present invention in a working state;

[0053] Figure 5 An enlarged schematic diagram of a base of an automatic support and protection device of the present invention;

[0054] Figure 6 An enlarged schematic diagram of a bearing seat of an automatic support and protection device of the present invention;

[0055] Figure 7 This is a schematic structural diagram of the cooperation between the base and the bearing seat of an automatic support and protection device of the present invention;

[0056] Figure 8 This is a flow chart of an application method of an automatic support protection device of the present invention;

[0057] Figure 9 A flow chart of the steps of stacking, changing and retrieving materials in an application method of an automatic support and protection device of the present invention;

[0058] Figure 10 This is a flow chart of the steps of taking and changing stacking materials in an application method of an automatic support and protection device of the present invention;

[0059] Figure 11 A flowchart of the specific process of the stacking, conversion and retrieving steps of the application method of the automatic support and protection device of the present invention;

[0060] Figure 12 It is a flow chart of the specific process of the material taking and stacking step of the application method of the automatic support and protection device of the present invention;

[0061] Figure 13 This is a schematic diagram of the overall structure of an automatic support and protection device for a bucket wheel stacker and reclaimer according to the present invention;

[0062] Figure 14 This is a schematic diagram of an automatic support and protection device of the present invention used in a bucket wheel stacker and reclaimer in a state where the main engine and tail car are separated;

[0063] Figure 15 This is a schematic diagram of the stacking state of an automatic support and protection device of the present invention used in a bucket wheel stacker and reclaimer;

[0064] Figure 16 The figure is a schematic diagram of the automatic support and protection device of the present invention used in the reclaiming state of a bucket wheel stacker and reclaimer.

[0065] In the accompanying drawings, the list of components represented by each number is as follows: 1. Support column; 11. Fixing part; 2. Base; 21. Bearing seat; 3. Support arm; 4. Drive system; 41. First rotating part; 5. Detection sensor; 6. First position sensor; 7. Second position sensor. DETAILED DESCRIPTION

[0066] The principles and features of the present invention are described below with reference to the accompanying drawings. The examples given are only used to explain the present invention and are not used to limit the scope of the present invention.

[0067] Example 1

[0068] like Figure 1-7 As shown, an automatic support and protection device includes a support column 1, a base 2, a support arm 3, a drive system 4, a detection sensor 5, a first position sensor 6 and a second position sensor 7. The base 2 is provided at the bottom of the support column 1, and the bottom of the base 2 is provided on the tail car platform. A support arm 3 is provided on one side of the upper end of the support column 1, and the detection sensor 5 is provided on the support arm 3. The output end of the drive system 4 is connected to one side of the middle part of the support column 1, and the bottom of the drive system 4 is provided on the tail car platform. The first position sensor 6 and the second position sensor 7 are respectively installed on a part of the head of the tail car. There are two support columns 1, and the base 2, support arm 3, drive system 4 and detection sensor 5 provided on the two support columns 1 are symmetrically arranged.

[0069] Specifically, the PLC system controls the drive system 4 mounted on the two support columns 1. When the output end of the drive system 4 extends, it pushes the two support columns 1 to retract relative to each other, supporting the tail car head via the support arms 3. When the output end of the drive system 4 retracts, it drives the two support columns 1 to open toward each other. The PLC system controls the raising and lowering of the tail car head.

[0070] In this embodiment, the first position sensor 6 is an open position sensor, and the second position sensor 7 is an operating position sensor. The first position sensor 6 senses whether the top of the support column 1 is in the open position, while the second position sensor 7 senses whether the top of the support column 1 is in the operating position. The first and second position sensors 6 and 7 transmit the sensed signals to the PLC system, which then controls the raising and lowering of the tail car head.

[0071] like Figure 1-7 As shown, the support arms 3 provided on the two support columns 1 are arranged opposite to each other.

[0072] Specifically, the support arms 3 provided on the two support columns 1 are arranged opposite to each other to support the head of the tail car. When stacking materials, the head of the tail car is supported by the support columns 1. When the tail car is changed, the tail car pitch hydraulic cylinder is activated, which can avoid accidents caused by problems with the hydraulic system and thus damage to the equipment.

[0073] like Figure 1-7 As shown, the two drive systems 4 are arranged between the two support columns 1, and the output ends of the two drive systems 4 are arranged opposite to the positions where they are connected to the two support columns 1;

[0074] Alternatively, the two driving systems 4 are respectively arranged outside the two supporting columns 1 , and the output ends of the two driving systems 4 are arranged opposite to the positions where the two supporting columns 1 are connected.

[0075] Specifically, the drive systems 4 provided on the two support columns 1 are arranged relative to each other or facing each other, so that the drive systems 4 can be set in multiple directions according to the on-site environment, and the two support columns 1 can be opened relative to each other or opened away from each other.

[0076] In this embodiment, the drive system 4 is hydraulically driven. Alternatively, the drive system 4 can be electrically driven. The support column 1 is made of steel. Alternatively, the support column 1 can be made of other supporting materials.

[0077] In this embodiment, two drive systems 4 are disposed between the two support columns 1, and the output ends of the two drive systems 4 are disposed opposite to the locations where they connect to the two support columns 1. When the output ends of the drive systems 4 extend, they push the two support columns 1 to retract relative to each other; when the output ends of the drive systems 4 retract, they drive the two support columns 1 to open away from each other.

[0078] like Figure 1-7 As shown, a fixing member 11 is provided on one side of the middle portion of the support column 1 , and a first rotating member 41 is provided at the output end of the driving system 4 , and the first rotating member 41 is rotatably connected to the fixing member 11 .

[0079] Specifically, by setting a first rotating member 41 at the output end of the driving system 4 and rotating it to the fixed member 11 on the support column 1, when the output end of the driving system 4 acts on the support column 1, the support column 1 can be rotated with the fixed member 11 as the axis and through the rotation direction of the first rotating member 41, so that the top end of the support column 1 is opened or retracted.

[0080] like Figure 1-7 As shown, the bottom of the support column 1 is fixedly connected to the top of the base 2, and the base 2 is rotatably connected to the tail vehicle platform through the bearing seat 21.

[0081] Specifically, the top of base 2 is welded to the bottom of support column 1. The bottom of base 2 is mounted on bearing seat 21 via a rotating shaft. The bottom of bearing seat 21 is fixedly welded to the tail platform. Base 2 rotates left and right on bearing seat 21 about the rotating shaft. Simultaneously, base 2 drives support column 1 to rotate along with it. When the output of drive system 4 acts on support column 1, support column 1 and base 2 rotate together about the rotating shaft of bearing seat 21. The bottom of support column 1 only rotates and does not expand or contract.

[0082] The beneficial effects of this embodiment are: the drive system 4 is used to change the opening and contraction of the support column 1, and the support column 1 is used to support the head of the tail car during stacking. The tail car pitch hydraulic cylinder is activated only when the tail car is changed, thereby avoiding accidents caused by problems with the hydraulic system and thus damage to the equipment. This device has a simple structure and is lightweight. The support column 1 can be directly added to the original tail car structure. The cost of adding this device has a small impact on the cost of the entire machine, but it can greatly improve the safety of the semi-lift tail car. The drive system 4 of this device is not shared with the original hydraulic system of the tail car, which can reduce the possibility of the device being unable to be driven due to a failure of the hydraulic system, thereby improving the reliability of the device during use.

[0083] The working process of this embodiment is as follows: the PLC system controls the drive system 4 installed on the two support columns 1. When the output end of the drive system 4 extends, it drives the two support columns 1 to open toward each other, and the PLC system controls the tail car head to rise or fall. When the output end of the drive system 4 retracts, it pushes the two support columns 1 to retract relative to each other, and the tail car head is supported by the support arm 3.

[0084] Example 2

[0085] Based on Example 1, the difference from Example 1 is that:

[0086] like Figure 1-7 As shown, an automatic support and protection device includes a support column 1, a base 2, a support arm 3, a drive system 4, a detection sensor 5, a first position sensor 6 and a second position sensor 7. The base 2 is provided at the bottom of the support column 1, and the bottom of the base 2 is provided on the tail car platform. A support arm 3 is provided on one side of the upper end of the support column 1, and the detection sensor 5 is provided on the support arm 3. The output end of the drive system 4 is connected to one side of the middle part of the support column 1, and the bottom of the drive system 4 is provided on the tail car platform. The first position sensor 6 and the second position sensor 7 are respectively installed on a part of the head of the tail car. There are two support columns 1, and the base 2, support arm 3, drive system 4 and detection sensor 5 provided on the two support columns 1 are symmetrically arranged.

[0087] Specifically, the PLC system controls the drive system 4 mounted on the two support columns 1. When the output end of the drive system 4 extends, it pushes the two support columns 1 to retract relative to each other, supporting the tail car head via the support arms 3. When the output end of the drive system 4 retracts, it drives the two support columns 1 to open away from each other. The PLC system controls the raising and lowering of the tail car head.

[0088] In this embodiment, the first position sensor 6 is an open position sensor, and the second position sensor 7 is an operating position sensor. The first position sensor 6 senses whether the top of the support column 1 is in the open position, while the second position sensor 7 senses whether the top of the support column 1 is in the operating position. The first and second position sensors 6 and 7 transmit the sensed signals to the PLC system, which then controls the raising and lowering of the tail car head.

[0089] like Figure 1-7 As shown, the two driving systems 4 are arranged between the two supporting columns 1, and the output ends of the two driving systems 4 are arranged opposite to the positions where they are connected to the two supporting columns 1;

[0090] Alternatively, the two driving systems 4 are respectively arranged on the outsides of the two supporting columns 1 , and the output ends of the two driving systems 4 are arranged opposite to the positions where the two supporting columns 1 are connected.

[0091] Specifically, in this embodiment, the two driving systems 4 are respectively arranged on the outside of the two support columns 1, and the output ends of the two driving systems 4 are arranged opposite to the positions where the two support columns 1 are connected. When the output ends of the driving systems 4 are extended, the two support columns 1 are pushed to retract relative to each other. When the output ends of the driving systems 4 are retracted, the two support columns 1 are driven to open toward each other.

[0092] In this embodiment, the drive system 4 is hydraulically driven. Alternatively, the drive system 4 can be electrically driven. The support column 1 is made of steel. Alternatively, the support column 1 can be made of other supporting materials.

[0093] The beneficial effects of this embodiment are: the drive system 4 is used to change the opening and contraction of the support column 1, and the support column 1 is used to support the head of the tail car during stacking. The tail car pitch hydraulic cylinder is activated only when the tail car is changed, thereby avoiding accidents caused by problems with the hydraulic system and thus damage to the equipment. This device has a simple structure and is lightweight. The support column 1 can be directly added to the original tail car structure. The cost of adding this device has a small impact on the cost of the entire machine, but it can greatly improve the safety of the semi-lift tail car. The drive system 4 of this device is not shared with the original hydraulic system of the tail car, which can reduce the possibility of the device being unable to be driven due to a failure of the hydraulic system, thereby improving the reliability of the device during use.

[0094] The working process of this embodiment is as follows: the PLC system controls the drive system 4 installed on the two support columns 1. When the output end of the drive system 4 extends, it drives the two support columns 1 to open toward each other, and the PLC system controls the tail car head to rise or fall. When the output end of the drive system 4 retracts, it pushes the two support columns 1 to retract relative to each other, and the tail car head is supported by the support arm 3.

[0095] Example 3

[0096] Based on Example 1 or Example 2:

[0097] like Figure 8-16 As shown, an application method of an automatic support and protection device is based on an automatic support and protection device, and the application method includes:

[0098] S1: When the head of the tail car is in a pile state, the detection sensor 5 detects that the head of the tail car is set on the support arm 3 set between the two support columns 1, and the head of the tail car is supported by the support column (1);

[0099] S2: When the tail car head is in the material-taking state, the tail car head is lowered to the lowest position, and the two support columns are opened to both sides of the tail car head in the opposite manner, entering the non-working state.

[0100] The beneficial effects of this embodiment are: the opening and contraction of the support column 1 are changed by utilizing the drive of the drive system 4, the head of the tail car is supported by the support column 1 when stacking materials, and the tail car pitch hydraulic cylinder is started only when the tail car is changed, so as to avoid accidents caused by problems with the hydraulic system and thus damage to the equipment. The structure of this device is simple and light in weight. The support column 1 can be directly added to the original tail car structure. The cost of increasing this device has little impact on the cost of the whole machine, but it can greatly improve the safety of the semi-lifting tail car. The drive system 4 of this device is not shared with the original hydraulic system of the tail car, which can reduce the possibility of the device being unable to be driven due to a failure of the hydraulic system, thereby improving the reliability of the device in use. The automatic control program of this device can be directly written using the PLC system of the original equipment. The control logic is clear and can be controlled by one button in the driver's cab or the local control box to realize automatic conversion control of the semi-lifting tail car without the need for additional operating steps.

[0101] The working process of this embodiment is as follows: when stacking materials, the head of the tail car is in a raised state, supported by the support column 1. When it is necessary to switch to the material collection, the head of the tail car first rises slightly. When it rises to the highest position, the support columns 1 on both sides open. Then, the head of the tail car descends. When it descends to the material collection position, the tail car hydraulic station stops according to the signal of the descending position sensor. When retrieving materials, the head of the tail car is in a lying state, and the automatic support protection device is in the open state at this time. When it is necessary to switch to the material collection, the head of the tail car rises. When it rises to the highest position, the support columns 1 on both sides retract to the working position. Then, the head of the tail car descends. When the detection sensor 5 senses the head of the tail car, the tail car hydraulic station stops and the automatic support protection device enters the working state.

[0102] In this embodiment, the descent position sensor is used to sense whether the tail car head has descended to the position required for the material picking state.

[0103] Example 4

[0104] Based on step S1 in Example 3,

[0105] like Figure 8-16 As shown, the following steps are included when converting the stacking material into a new one:

[0106] S11: When the tail car head needs to be changed to the material-retrieving state, the PLC system controls the tail car head to rise until it reaches the highest position. After the rising position sensor senses the tail car head, it transmits the signal to the PLC system;

[0107] S12: The PLC system controls the drive system 4 on the two support columns 1 to open the two support columns 1 to both sides in reverse directions;

[0108] S13: The second position sensor (7) senses that the two support columns (1) are opened to the non-working position, and transmits the signal to the PLC system;

[0109] S14: The PLC system controls the tail car head to descend until it reaches the lowest position. After the tail car head reaches the lowest position, the sensor senses that the tail car head has reached the material retrieving position and transmits the signal to the PLC system.

[0110] S15: The PLC system controls the tail car head to stop descending.

[0111] Specifically, in this embodiment, the rising position sensor and the descending position sensor are provided on the tail car itself. The rising position sensor is a sensor for sensing the rising position of the tail car head. The descending position sensor is a sensor for sensing the descending position of the tail car head. The rising position sensor and the descending position sensor are not embodied in this device.

[0112] The beneficial effects of this embodiment are: the opening and contraction of the support column 1 are changed by utilizing the drive of the drive system 4, the head of the tail car is supported by the support column 1 when stacking materials, and the tail car pitch hydraulic cylinder is started only when the tail car is changed, so as to avoid accidents caused by problems with the hydraulic system and thus damage to the equipment. The structure of this device is simple and light in weight. The support column 1 can be directly added to the original tail car structure. The cost of increasing this device has little impact on the cost of the whole machine, but it can greatly improve the safety of the semi-lifting tail car. The drive system 4 of this device is not shared with the original hydraulic system of the tail car, which can reduce the possibility of the device being unable to be driven due to a failure of the hydraulic system, thereby improving the reliability of the device in use. The automatic control program of this device can be directly written using the PLC system of the original equipment. The control logic is clear and can be controlled by one button in the driver's cab or the local control box to realize automatic conversion control of the semi-lifting tail car without the need for additional operating steps.

[0113] The working process of this embodiment is as follows: when stacking materials, the head of the tail car is in a raised state and supported by the support column 1. When it is necessary to switch to taking materials, the head of the tail car first rises slightly. When it rises to the highest position, the support columns 1 on both sides are opened. After that, the head of the tail car descends. When it descends to the taking material position, the tail car hydraulic station stops according to the signal of the sensor that it has descended to the position.

[0114] Example 5

[0115] Based on step S2 in Example 3,

[0116] like Figure 8-16 As shown, the following steps are involved when retrieving and converting materials into piles:

[0117] S21: When the tail car head needs to be transformed into a pile shape, the PLC system controls the tail car head to rise upward until it reaches the highest position. After the rising position sensor senses the highest position of the tail car head, it transmits the signal to the PLC system;

[0118] S22: The PLC system controls the drive system 4 provided on the two support columns 1 to retract the two support columns 1 inwardly to the working position in a facing manner;

[0119] S23: The first position sensor 6 senses that the support column 1 has retracted to the working limit and transmits a signal to the PLC system;

[0120] S24: The PLC system controls the tail car head to descend downward until the detection sensor 5 detects that the tail car head is placed on the support arm 3 provided between the two support columns 1;

[0121] S25: The automatic support protection device enters the working state.

[0122] Specifically, in this embodiment, the first position sensor 6 senses whether the two support columns 1 have retracted to their working positions. The rising position sensor and the descending position sensor are installed on the tail car and are not included in this device. The rising position sensor is used to sense whether the tail car head has risen to the predetermined highest position; the descending position sensor is used to sense whether the tail car head has descended to the position required for the material retrieving state.

[0123] The beneficial effects of this embodiment are: the opening and contraction of the support column 1 are changed by utilizing the drive of the drive system 4, the head of the tail car is supported by the support column 1 when stacking materials, and the tail car pitch hydraulic cylinder is started only when the tail car is changed, so as to avoid accidents caused by problems with the hydraulic system and thus damage to the equipment. The structure of this device is simple and light in weight. The support column 1 can be directly added to the original tail car structure. The cost of increasing this device has little impact on the cost of the whole machine, but it can greatly improve the safety of the semi-lifting tail car. The drive system 4 of this device is not shared with the original hydraulic system of the tail car, which can reduce the possibility of the device being unable to be driven due to a failure of the hydraulic system, thereby improving the reliability of the device in use. The automatic control program of this device can be directly written using the PLC system of the original equipment. The control logic is clear and can be controlled by one button in the driver's cab or the local control box to realize automatic conversion control of the semi-lifting tail car without the need for additional operating steps.

[0124] The working process of this embodiment is as follows: when taking materials, the head of the tail car is in a lying state, and the automatic support and protection device is in an open state at this time. When it is necessary to switch to stacking materials, the head of the tail car rises. When it rises to the highest position, the support columns 1 on both sides are retracted to the working position. Then, the head of the tail car drops down. When the detection sensor 5 senses the head of the tail car, the tail car hydraulic station stops and the automatic support and protection device enters the working state.

[0125] Specifically, in this embodiment, the first position sensor 6 senses whether the two support columns 1 are opened to the open limit position, that is, whether the two support columns 1 are opened to the non-operating position. The rising position sensor and the lowering position sensor are installed on the tail vehicle. The rising position sensor is the rising position sensor. The lowering position sensor is the lowering position sensor. The rising position sensor and the lowering position sensor are not included in this device.

[0126] Example 6

[0127] Based on Example 4,

[0128] like Figure 8-16 As shown in the figure, the specific application process of stacking material conversion and reclaiming is:

[0129] S111: The PLC system controls the tail car hydraulic station to start, and the tail car head rises until it reaches the highest position. After the sensor senses the position, it transmits the signal to the PLC system. The hydraulic system opens the hook between the main engine and the tail car, and the PLC system controls the main engine to move forward and separate from the tail car.

[0130] S112: When the main engine reaches a position where the tail car can be changed, the PLC system controls the main engine to stop moving;

[0131] S113: The PLC system controls the drive systems 4 on the two support columns 1 to open the two support columns 1 in opposite directions. The second position sensor 7 senses that the support columns 1 are opened to the non-working position and transmits a signal to the PLC system.

[0132] S114: The PLC system controls the tail car head to start descending. When it descends to the material taking position, the descending position sensor sends a signal to the PLC system, and the PLC system controls the tail car hydraulic station to stop working;

[0133] S115: The PLC system controls the main engine to move backward until the main engine and the tail car are in place;

[0134] S116: When the main engine and the tail vehicle are in place, the hooks of the tail vehicle and the main engine are automatically locked, connecting the tail vehicle and the main engine into a whole.

[0135] The beneficial effects of this embodiment are: the opening and contraction of the support column 1 are changed by utilizing the drive of the drive system 4, the head of the tail car is supported by the support column 1 when stacking materials, and the tail car pitch hydraulic cylinder is started only when the tail car is changed, so as to avoid accidents caused by problems with the hydraulic system and thus damage to the equipment. The structure of this device is simple and light in weight. The support column 1 can be directly added to the original tail car structure. The cost of increasing this device has little impact on the cost of the whole machine, but it can greatly improve the safety of the semi-lifting tail car. The drive system 4 of this device is not shared with the original hydraulic system of the tail car, which can reduce the possibility of the device being unable to be driven due to a failure of the hydraulic system, thereby improving the reliability of the device in use. The automatic control program of this device can be directly written using the PLC system of the original equipment. The control logic is clear and can be controlled by one button in the driver's cab or the local control box to realize automatic conversion control of the semi-lifting tail car without the need for additional operating steps.

[0136] The working process of this embodiment is as follows: the PLC system controls the tail car hydraulic station to start, opens the hook between the main machine and the tail car, and controls the main machine to move forward and detach from the tail car; when the main machine advances to a position where the tail car can be changed, the PLC system controls the main machine to stop moving; the PLC system controls the hydraulic cylinder of the tail car head to start, and the tail car head rises until it reaches the highest position. After the rising position sensor senses it, it transmits a signal to the PLC system; the PLC system controls the drive system 4 on the two support columns 1 to open the two support columns 1 to both sides in a mutually opposite manner. After the second position sensor 7 detects that the support columns 1 are opened to the non-working position, it transmits a signal to the PLC system; the PLC system controls the tail car head to start descending. When it descends to the material taking position, the descending position sensor sends a signal to the PLC system, and the PLC system controls the tail car hydraulic station to stop working; the PLC system controls the main machine to retreat until the main machine and the tail car are in place; when the main machine and the tail car are in place, the hook of the tail car and the main machine is automatically locked, connecting the tail car and the main machine into a whole.

[0137] Example 7

[0138] Based on Example 5,

[0139] like Figure 8-16 As shown in the figure, the specific application process of reclaiming and stacking is as follows:

[0140] S211: The PLC system controls the tail car hydraulic station to start, opening the hook between the main engine and the tail car. The PLC system controls the main engine to move forward and separate from the tail car.

[0141] S212: When the main engine reaches a position where the tail car can be changed, the PLC system controls the main engine to stop moving;

[0142] S213: The PLC system controls the hydraulic cylinder of the tail car head to start, and the tail car head rises. When it rises to the highest position, the rising position sensor senses it and transmits the signal to the PLC system;

[0143] S214: The PLC system controls the drive system 4 on the two support columns 1 to retract the two support columns 1 inward relative to each other to the working position. After the first position sensor 6 senses that the support columns 1 have retracted to the working limit position, it transmits a signal to the PLC system.

[0144] S215: The PLC system controls the tail car head to descend. When the detection sensor 5 senses that the tail car head is located on the support arm 3 provided between the two support columns 1, the PLC system controls the tail car hydraulic station to stop working and the automatic support protection device enters the working state.

[0145] S216: The PLC system controls the main engine to move backward until the main engine and the tail car are in place;

[0146] S217: When the main engine and the tail car are in place, the hooks of the tail car and the main engine are automatically locked, connecting the tail car and the main engine into a whole.

[0147] The beneficial effects of this embodiment are: the opening and contraction of the support column 1 are changed by utilizing the drive of the drive system 4, the head of the tail car is supported by the support column 1 when stacking materials, and the tail car pitch hydraulic cylinder is started only when the tail car is changed, so as to avoid accidents caused by problems with the hydraulic system and thus damage to the equipment. The structure of this device is simple and light in weight. The support column 1 can be directly added to the original tail car structure. The cost of increasing this device has little impact on the cost of the whole machine, but it can greatly improve the safety of the semi-lifting tail car. The drive system 4 of this device is not shared with the original hydraulic system of the tail car, which can reduce the possibility of the device being unable to be driven due to a failure of the hydraulic system, thereby improving the reliability of the device in use. The automatic control program of this device can be directly written using the PLC system of the original equipment. The control logic is clear and can be controlled by one button in the driver's cab or the local control box to realize automatic conversion control of the semi-lifting tail car without the need for additional operating steps.

[0148] The working process of this embodiment is as follows: the PLC system controls the hydraulic station of the tail car to start, open the hook between the main machine and the tail car, and the PLC system controls the main machine to move forward and detach from the tail car; when the main machine advances to a position where the tail car can be changed, the PLC system controls the main machine to stop moving; the PLC system controls the hydraulic cylinder of the tail car head to start, and the tail car head rises. When it rises to the highest position, the rising position sensor senses it and transmits a signal to the PLC system; the PLC system controls the drive system 4 on the two support columns 1 to retract the two support columns 1 inwardly in a relative manner to the working position. When the first position sensor 6 senses that the support column 1 has retracted to the working limit, it transmits a signal to the PLC system; the PLC system controls the tail car head to descend. When the detection sensor 5 senses that the tail car head is set on the support arm 3 provided between the two support columns 1, the PLC system controls the hydraulic station of the tail car to stop working and the automatic support protection device to enter the working state; the PLC system controls the main machine to retreat until the main machine and the tail car are fully connected; when the main machine and the tail car are fully connected, the hook of the tail car and the main machine automatically locks, connecting the tail car and the main machine into a whole.

[0149] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like to indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0150] Furthermore, 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 the technical features being referred to. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "plurality" means at least two, such as two, three, etc., unless otherwise specifically defined.

[0151] In the present invention, unless otherwise specified or limited, the terms "installed," "connected," "connect," "fixed," etc. should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integration; mechanical connection, electrical connection; direct connection, or indirect connection through an intermediate medium; internal communication between two components, or interaction between two components, unless otherwise specified. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on specific circumstances.

[0152] In the present invention, unless otherwise expressly specified or limited, when a first feature is "above" or "below" a second feature, it may mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediary. Furthermore, when a first feature is "above," "above," or "above" a second feature, it may mean that the first feature is directly above or diagonally above the second feature, or simply means that the first feature is at a higher level than the second feature. When a first feature is "below," "below," or "below" a second feature, it may mean that the first feature is directly below or diagonally below the second feature, or simply means that the first feature is at a lower level than the second feature.

[0153] In the description of this specification, the reference terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" mean that the specific features, mechanisms, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, mechanisms, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art can combine and combine different embodiments or examples described in this specification and features of different embodiments or examples without contradiction.

[0154] Although the embodiments of the present invention have been shown and described above, it will be understood that the above embodiments are illustrative and are not to be construed as limitations on the present invention. A person skilled in the art may change, modify, replace and modify the above embodiments within the scope of the present invention.

Claims

1. An application method of an automatic support protection device, characterized in that: Based on the automatic support protection device, the automatic support protection device includes a support column (1), a base (2), a support arm (3), a drive system (4), a detection sensor (5), a first position sensor (6) and a second position sensor (7), the base (2) is provided at the bottom of the support column (1), the bottom of the base (2) is provided on the tail car platform, the support arm (3) is provided on one side of the upper end of the support column (1), the detection sensor (5) is provided on the support arm (3), the output end of the drive system (4) is connected to one side of the middle part of the support column (1), the bottom of the drive system (4) is provided on the tail car platform, the first position sensor (6) and the second position sensor (7) are respectively installed on a part of the head of the tail car, there are two support columns (1), and the base (2), the support arm (3), the drive system (4) and the detection sensor (5) provided on the two support columns (1) are symmetrically arranged; its application method includes: S1: When the head of the tail car is in a pile state, the detection sensor (5) detects that the head of the tail car is set on the support arm (3) set between the two support columns (1), and the head of the tail car is provided with support force by the support columns (1); S2: When the tail car head is in the material-taking state, the tail car head is lowered to the lowest position, and the two support columns (1) are opened in the opposite direction to both sides of the tail car head, entering the non-working state; Based on step S1, the following steps are included when converting the stacking material into a new one: S11: When the tail car head needs to be changed to the material-retrieving state, the PLC system controls the tail car head to rise until it reaches the highest position. After the rising position sensor senses the tail car head, it transmits the signal to the PLC system; S12: The PLC system controls the drive system (4) on the two support columns (1) to open the two support columns (1) in a reverse manner toward both sides of the tail vehicle head; S13: The second position sensor (7) senses that the two support columns (1) are opened to the non-working position, and transmits the signal to the PLC system; S14: The PLC system controls the tail car head to descend until it reaches the lowest position. After the tail car head reaches the lowest position, the sensor senses that the tail car head has reached the material retrieving position and transmits the signal to the PLC system. S15: The PLC system controls the tail car head to stop descending; Specific application process based on steps S11-S15: S111: The PLC system controls the tail car hydraulic station to start, and the tail car head rises until it reaches the highest position. After the sensor senses the position, it transmits the signal to the PLC system. The hydraulic system opens the hook between the main engine and the tail car, and the PLC system controls the main engine to move forward and separate from the tail car. S112: When the main engine reaches a position where the tail car can be changed, the PLC system controls the main engine to stop moving; S113: The PLC system controls the drive system (4) on the two support columns (1) to open the two support columns (1) in opposite directions. After the second position sensor (7) senses that the support columns (1) are opened to the non-working position, the second position sensor (7) transmits the signal to the PLC system. S114: The PLC system controls the tail car head to start descending. When it descends to the material taking position, the descending position sensor sends a signal to the PLC system, and the PLC system controls the tail car hydraulic station to stop working; S115: The PLC system controls the main engine to move backward until the main engine and the tail car are in place; S116: When the main engine and the tail vehicle are in place, the hooks of the tail vehicle and the main engine are automatically locked, connecting the tail vehicle and the main engine into a whole.

2. The application method of the automatic support protection device according to claim 1, characterized in that: Based on step S2, the following steps are included when retrieving and converting the stacking material: S21: When the tail car head needs to be transformed into a pile shape, the PLC system controls the tail car head to rise upward until it reaches the highest position. After the rising position sensor senses the highest position of the tail car head, it transmits the signal to the PLC system; S22: The PLC system controls the drive system (4) provided on the two support columns (1) to retract the two support columns (1) inwardly to the working position in a mutually opposing manner; S23: The first position sensor (6) senses that the support column (1) has retracted to the working limit and transmits the signal to the PLC system; S24: The PLC system controls the tail car head to descend downward until the detection sensor (5) detects that the tail car head is set on the support arm (3) set between the two support columns (1); S25: The automatic support protection device enters the working state.

3. The application method of the automatic support protection device according to claim 2, characterized in that: Specific application process based on steps S21-S25: S211: The PLC system controls the tail car hydraulic station to start, opening the hook between the main engine and the tail car. The PLC system controls the main engine to move forward and separate from the tail car. S212: When the main engine reaches a position where the tail car can be changed, the PLC system controls the main engine to stop moving; S213: The PLC system controls the hydraulic cylinder of the tail car head to start, and the tail car head rises. When it rises to the highest position, the rising position sensor senses it and transmits the signal to the PLC system; S214: The PLC system controls the drive systems (4) on the two support columns (1) to retract the two support columns (1) inwardly to the working position in a mutually opposite manner. After the first position sensor (6) detects that the support columns (1) have retracted to the working position, it transmits a signal to the PLC system; S215: The PLC system controls the tail car head to descend. When the detection sensor (5) senses that the tail car head is located on the support arm (3) provided between the two support columns (1), the PLC system controls the tail car hydraulic station to stop working, and the automatic support protection device enters the working state. S216: The PLC system controls the main engine to move backward until the main engine and the tail car are in place; S217: When the main engine and the tail car are in place, the hooks of the tail car and the main engine are automatically locked, connecting the tail car and the main engine into a whole.

4. The application method of the automatic support and protection device according to claim 1, characterized in that: The support arms (3) provided on the two support columns (1) are arranged opposite to each other.

5. The application method of the automatic support protection device according to claim 1, characterized in that: The two drive systems (4) are arranged between the two support columns (1), and the output ends of the two drive systems (4) are arranged opposite to the positions where they are connected to the two support columns (1); Alternatively, the two drive systems (4) are respectively arranged outside the two support columns (1), and the output ends of the two drive systems (4) are arranged opposite to the positions where they are connected to the two support columns (1).

6. The application method of the automatic support and protection device according to claim 1, characterized in that: A fixing member (11) is provided on one side of the middle portion of the support column (1), and a first rotating member (41) is provided at the output end of the drive system (4), wherein the first rotating member (41) is rotatably connected to the fixing member (11).

7. The application method of the automatic support and protection device according to claim 1, characterized in that: The bottom of the support column (1) is fixedly connected to the top of the base (2), and the base (2) is rotatably connected to the tail vehicle platform via a bearing seat (21).

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