Automatic support protection device and application method thereof

Abstract

The invention relates to an automatic support protection device and an application method thereof. The automatic supporting protection device comprises a supporting column, a base, a supporting arm, a driving system, a detection sensor, a first position sensor and a second position sensor, the base is arranged at the bottom of the supporting column, the bottom of the base is arranged on the tripper car platform, the supporting arm is arranged on one side of the upper end of the supporting column, and the detection sensor is arranged on the supporting arm. The output end of the driving system is connected to one side of the middle of each supporting column, the bottom of the driving system is arranged on a tripper car platform, the first position sensor and the second position sensor are installed on one portion of the head of a tripper car respectively, and the bases, the supporting arms, the driving systems and the detection sensors arranged on the two supporting columns are symmetrically arranged. Through the mechanism, the hidden danger problems that during manual on-site operation, the positions of the tripper car and the main engine and the lifting state of the tripper car need to be continuously confirmed, and a pitching hydraulic cylinder at the head of the tripper car is prone to pressure relief, oil leakage, equipment damage and the like are solved.

Description

Technical Field

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

[0002] At present, bucket wheel stacker and reclaimer is the most widely used equipment in the bulk material conveying industry. It has high operating efficiency, can realize automatic stacking and reclaiming operations, and has a variety of tail car models. Among them, bucket wheel stacker and reclaimer with semi-lifting tail car is also widely used. However, most of the bucket wheel stacker and reclaimer with semi-lifting bucket tail car structure currently use the extension and retraction of hydraulic cylinder to drive the lifting and lowering of the active part of the tail car. The stacking and reclaiming change action of the semi-lifting tail car is generally operated on site through the local control box or in the driver's cab by relying on the feedback signal of the on-site sensor to change the tail car operation.

[0003] Disadvantages: When operating on-site, manual operation requires constant confirmation of the position of the tail car and the main machine as well as the lifting and lowering status of the tail car, and it 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, and it is easy to make mistakes.

[0004] After the tail car is changed 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 will cause the head of the tail car to fall onto the main machine due to hydraulic cylinder pressure leakage, 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 solve the hidden dangers of needing to constantly confirm the position of the tail car and the main machine, the lifting and lowering state of the tail car, and the pressure relief, oil leakage, equipment damage and the like of the pitch hydraulic cylinder of the tail car head during manual on-site operation.

[0006] The technical solution of the present invention to solve the above technical problems is as follows: An automatic support and protection device comprises a support column, a base, a support arm, a drive system, a detection sensor, a first position sensor and a second position sensor. A base is arranged at the bottom of the support column, and the bottom of the base is arranged on a tail car platform. A support arm is arranged on one side of the upper end of the support column, and the detection sensor is arranged 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 arranged 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 arranged on the two support columns are symmetrically arranged.

[0007] The beneficial effect of adopting the above further scheme is that the opening and contraction of the support column is changed by utilizing the drive of the driving 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, and the support column can be directly added to the original tail car structure. The cost of adding 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 driving 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.

[0008] Furthermore, the support arms arranged on the two support columns are arranged opposite to each other.

[0009] The beneficial effect of adopting the above further solution is that the support arms arranged on the two support columns are arranged opposite to each other to support and place 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, so that accidents caused by problems in the hydraulic system and thus causing damage to the equipment can be avoided.

[0010] 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; 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.

[0011] The beneficial effect of adopting the above further solution is that the drive systems arranged on the two support columns are arranged relative to each other or opposite to each other, so that the drive systems can be arranged 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.

[0012] Furthermore, a fixing member is disposed on one side of the middle portion of the support column, and a first rotating member is disposed at the output end of the driving system, and the first rotating member is rotatably connected to the fixing member.

[0013] The beneficial effect of adopting the above 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 rotate with the fixed member as the axis and through the rotation direction of the first rotating member, thereby causing the top end of the support column to open or contract.

[0014] 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.

[0015] 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 rotates together with the support column. The base is rotatably connected to the tail car platform through the bearing seat, so that when the base rotates together with the support column, it rotates around the rotation axis of the bearing seat, so that the bottom of the support column only rotates and does not open or retract.

[0016] On the other hand, an application method of an automatic support protection device is based on an automatic support protection device, and the application method includes: 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 two support columns, and the head of the tail car is supported by the support column; S2: When the head of the tail car is in the material-retrieving state, the head of the tail car is lowered to the lowest position, and the two supporting columns are opened to both sides in the opposite manner, entering a non-working state.

[0017] Further, based on step S1, the following steps are included when stacking material is transformed into taking material: S11: When the tail car head needs to be changed to the material-taking state, the PLC system controls the tail car head to rise upward until the tail car head rises to the highest position. After the rising position sensor senses the tail car head, it transmits the position signal to the PLC system; S12: The PLC system controls the driving systems on the two support columns to open the two support columns to both sides in reverse directions; 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; 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.

[0018] Further, based on step S2, the following steps are included when taking materials and converting materials into piles: S21: When the tail car head needs to be changed to a pile state, the PLC system controls the tail car head to rise upward until the tail car head rises to 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 systems on both sides of the tail car to retract the two support columns inwards to the working position in a relative manner; S23: The first position sensor detects that the support column has retracted to the working limit and transmits a signal to the PLC system; S24: The PLC system controls the head of the tail car to descend downward until the detection sensor detects that the head of the tail car falls onto the support arm set between the two support pillars; S25: The automatic support protection device enters the working state.

[0019] Further, an application method of the automatic support protection device is based on the specific application process of 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, and the hydraulic system opens the hook between the main engine and the tail car. The PLC system controls the main engine to move forward and detach from the tail car. S112: When the main engine moves forward to a position where the tail car can be changed, the PLC system controls the main engine to stop moving forward; S113: The PLC system controls the driving systems on the two support columns to open the two support columns to both sides in a reverse manner. After the second position sensor detects that the support columns are opened to the non-working position, the second position sensor transmits a 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.

[0020] Further, an application method of the automatic support protection device is based on the specific application process of steps S21-S25: S211: The PLC system controls the tail car hydraulic station to start, opens the hook between the main engine and the tail car, and the PLC system controls the main engine to move forward and detach from the tail car; S212: When the main engine moves forward to a position where the tail car can be changed, the PLC system controls the main engine to stop moving forward; 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 driving systems on the two support columns to retract the two support columns inwardly to the working positions in a mutually opposite manner. After the first position sensor detects that the support columns are retracted to the working positions, the first position sensor transmits a signal to the PLC system. S215: The PLC system controls the tail car head to descend. When the detection sensor senses that the tail car head is set on the support arm set 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; S216: The PLC system controls the main engine to move backward until the main engine and the tail vehicle are in place; S217: 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.

[0021] The beneficial effect of adopting the above scheme is that the opening and contraction of the support column is changed by 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 when the tail car is changed, so as to avoid accidents caused by problems in the hydraulic system and thus damage to the equipment. The structure of this device is simple and light, and the support column can be directly added to the original tail car structure. The cost of adding 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 drive 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, and the control logic is clear. It can be controlled by one key through the button in the driver's cab or the local control box to realize the automatic change control of the semi-lifting tail car without the need for additional operating steps. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a structural schematic diagram of an automatic support and protection device of the present invention cooperating with the head of the tail vehicle; Figure 2 It is a structural schematic diagram of an automatic support protection device of the present invention in an open state; Figure 3 It is a structural schematic diagram of a working state of an automatic support protection device of the present invention; Figure 4 Another structural schematic diagram of the working state of an automatic support protection device of the present invention; Figure 5 It is an enlarged schematic diagram of a base of an automatic support and protection device of the present invention; Figure 6 It is an enlarged schematic diagram of a bearing seat of an automatic support and protection device of the present invention; Figure 7 It 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; Figure 8 A flow chart of an application method of an automatic support protection device of the present invention; Fig. 9 It is a flow chart of the steps of stacking, changing and taking materials in an application method of an automatic support and protection device of the present invention; Fig.10 It is a flow chart of the steps of taking materials and changing pile materials in an application method of an automatic support and protection device of the present invention; Fig.11 It is a flow chart of the specific process of the stacking material conversion and material taking step of the application method of the automatic support protection device of the present invention; Fig.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; Fig.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; Fig.14 This is a schematic diagram of an automatic support and protection device of the present invention used in a state where the main engine and the tail car of a bucket wheel stacker and reclaimer are separated; Fig.15 This is a schematic diagram of a state of stacking materials when an automatic support and protection device of the present invention is used for a bucket wheel stacker and reclaimer; Fig.16 The present invention is a schematic diagram of an automatic support and protection device used in a bucket wheel stacker and reclaimer for material reclaiming.

[0023] 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. Driving system; 41. First rotating part; 5. Detection sensor; 6. First position sensor; 7. Second position sensor. DETAILED DESCRIPTION

[0024] The principles and features of the present invention are described below in conjunction with 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.

[0025] Example 1 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 arranged at the bottom of the support column 1, and the bottom of the base 2 is arranged on the tail car platform. A support arm 3 is arranged on one side of the upper end of the support column 1, and the detection sensor 5 is arranged 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 arranged on the tail car platform. The first position sensor 6 and the second position sensor 7 are respectively installed at 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 arranged on the two support columns 1 are symmetrically arranged.

[0026] Specifically, the PLC system controls the drive system 4 provided on the two support columns 1. When the output end of the drive system 4 extends, the two support columns 1 are pushed to retract relative to each other, and the head of the tail vehicle is supported by the support arm 3. When the output end of the drive system 4 retracts, the two support columns 1 are driven to open toward each other. The PLC system controls the head of the tail vehicle to rise or fall.

[0027] In this embodiment, the first position sensor 6 is an open position sensor, and the second position sensor 7 is a working position sensor. The first position sensor 6 senses whether the top of the support column 1 is in an open state. The second position sensor 7 senses whether the top of the support column 1 is in a working state. The first position sensor 6 and the second position sensor 7 send the sensed signals to the PLC system, and then the PLC system controls the lifting and lowering of the tail car head.

[0028] like Figure 1-7 As shown, the support arms 3 arranged on the two support columns 1 are arranged opposite to each other.

[0029] Specifically, the support arms 3 provided on the two support columns 1 are arranged opposite to each other and are used to support and place the head of the tail car. When stacking materials, the head of the tail car is supported by the support columns 1, and the tail car pitch hydraulic cylinder is activated when the tail car is changed, so as to avoid accidents caused by problems in the hydraulic system and thus damage to the equipment.

[0030] 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 the two support columns 1 are connected; 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.

[0031] Specifically, the drive systems 4 arranged on the two support columns 1 are arranged relative to each other or facing each other, so that the drive systems 4 can be arranged 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.

[0032] In this embodiment, the drive system 4 adopts a hydraulic drive mode. Alternatively, the drive system 4 can also adopt an electric drive mode. The support column 1 adopts a steel structure. Alternatively, the support column 1 can also be composed of other materials with a supporting function.

[0033] In this embodiment, two drive systems 4 are arranged between two support columns 1, and the output ends of the two drive systems 4 are arranged opposite to the positions where the two support columns 1 are connected. When the output ends of the drive systems 4 extend, the two support columns 1 are pushed to retract relative to each other, and when the output ends of the drive systems 4 retract, the two support columns 1 are driven to open opposite to each other.

[0034] like Figure 1-7 As shown, a fixing member 11 is disposed on one side of the middle portion of the support column 1 , and a first rotating member 41 is disposed at the output end of the driving system 4 , and the first rotating member 41 is rotatably connected to the fixing member 11 .

[0035] Specifically, by setting a first rotating member 41 at the output end of the driving system 4 to be rotatably connected 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 rotate 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.

[0036] 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 a bearing seat 21.

[0037] Specifically, the top of the base 2 is welded to the bottom of the support column 1, the bottom of the base 2 is mounted on the bearing seat 21 through a rotating shaft, and the bottom of the bearing seat 21 is fixedly welded to the tail car platform. The base 2 rotates left and right on the bearing seat 21 with the rotating shaft as the axis. At the same time, the base 2 drives the support column 1 to rotate together. At the same time, when the output end of the drive system 4 acts on the support column 1, the support column 1 and the base 2 rotate together with the rotating shaft of the bearing seat 21 as the axis, and the bottom of the support column 1 only rotates and does not open or shrink.

[0038] The beneficial effects of this embodiment are: the opening and contraction of the support column 1 are changed by 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 when the tail car is changed, so that accidents caused by problems in the hydraulic system and thus equipment damage can be avoided. The structure of this device is simple and light, and the support column 1 can be directly added to the original tail car structure. The cost of adding 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.

[0039] The working process of this embodiment is as follows: the PLC system controls the driving system 4 provided on the two supporting columns 1. When the output end of the driving system 4 extends, the two supporting columns 1 are driven to open toward each other, and the PLC system controls the head of the tail vehicle to rise or fall. When the output end of the driving system 4 contracts, the two supporting columns 1 are pushed to contract relative to each other, and the head of the tail vehicle is supported by the supporting arm 3.

[0040] Example 2 Based on Example 1, the difference from Example 1 is that: 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 arranged at the bottom of the support column 1, and the bottom of the base 2 is arranged on the tail car platform. A support arm 3 is arranged on one side of the upper end of the support column 1, and the detection sensor 5 is arranged 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 arranged on the tail car platform. The first position sensor 6 and the second position sensor 7 are respectively installed at 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 arranged on the two support columns 1 are symmetrically arranged.

[0041] Specifically, the PLC system controls the drive system 4 provided on the two support columns 1. When the output end of the drive system 4 extends, the two support columns 1 are pushed to retract relative to each other, and the head of the tail vehicle is supported by the support arm 3. When the output end of the drive system 4 retracts, the two support columns 1 are driven to open back to back. The PLC system controls the head of the tail vehicle to rise or fall.

[0042] In this embodiment, the first position sensor 6 is an open position sensor, and the second position sensor 7 is a working position sensor. The first position sensor 6 senses whether the top of the support column 1 is in an open state. The second position sensor 7 senses whether the top of the support column 1 is in a working state. The first position sensor 6 and the second position sensor 7 send the sensed signals to the PLC system, and then the PLC system controls the lifting and lowering of the tail car head.

[0043] 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 the two supporting columns 1 are connected; 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.

[0044] 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.

[0045] In this embodiment, the drive system 4 adopts a hydraulic drive mode. Alternatively, the drive system 4 can also adopt an electric drive mode. The support column 1 adopts a steel structure. Alternatively, the support column 1 can also be composed of other materials with a supporting function.

[0046] The beneficial effects of this embodiment are: the opening and contraction of the support column 1 are changed by 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 when the tail car is changed, so that accidents caused by problems in the hydraulic system and thus equipment damage can be avoided. The structure of this device is simple and light, and the support column 1 can be directly added to the original tail car structure. The cost of adding 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.

[0047] The working process of this embodiment is as follows: the PLC system controls the driving system 4 provided on the two supporting columns 1. When the output end of the driving system 4 extends, the two supporting columns 1 are driven to open toward each other, and the PLC system controls the head of the tail vehicle to rise or fall. When the output end of the driving system 4 contracts, the two supporting columns 1 are pushed to contract relative to each other, and the head of the tail vehicle is supported by the supporting arm 3.

[0048] Example 3 Based on Example 1 or Example 2: like Figure 8-16 As shown, an application method of an automatic support protection device is based on an automatic support protection device, and the 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 supported by the support column (1); S2: When the head of the tail car is in the material-taking state, the head of the tail car is lowered to the lowest position, and the two supporting columns are opened to both sides of the head of the tail car in the reverse manner, and enter the non-working state.

[0049] The beneficial effects of this embodiment are: the opening and contraction of the support column 1 are changed by 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 when the tail car is changed, so that accidents caused by problems in the hydraulic system and thus equipment damage can be avoided. The structure of this device is simple and light, and the support column 1 can be directly added to the original tail car structure. The cost of adding 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, and the control logic is clear. One-key control can be performed through the button in the driver's cab or the local control box to realize the automatic change control of the semi-lifting tail car without the need for additional operating steps.

[0050] 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 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 are opened. After that, the head of the tail car drops. When it drops to the material collection position, the tail car hydraulic station is stopped according to the sensor signal of the drop-in position. When picking materials, the head of the tail car is in a lying state, and the automatic support 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, and then the head of the tail car drops. When the detection sensor 5 senses the head of the tail car, the tail car hydraulic station is stopped and the automatic support protection device enters the working state.

[0051] In this embodiment, the descent-to-position sensor is used to sense whether the head of the tail car has descended to the position required for the material picking state.

[0052] Example 4 Based on step S1 in Example 3, like Figure 8-16 As shown, the following steps are included when converting the pile material into a material: S11: When the tail car head needs to be changed to the material taking state, the PLC system controls the tail car head to rise upward until the tail car head rises to the highest position. After the rising position sensor senses the tail car head, the signal is transmitted to the PLC system; S12: The PLC system controls the driving system 4 on the two support columns 1 to open the two support columns 1 to both sides in a reverse manner; S13: the second position sensor (7) senses that the two support columns (1) are opened to the non-working position, and transmits a 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.

[0053] Specifically, in this embodiment, the rising position sensor and the descending position sensor are arranged on the tail car itself, and the rising position sensor is a sensor for sensing the rising position of the head of the tail car. The descending position sensor is a sensor for sensing the descending position of the head of the tail car. The rising position sensor and the descending position sensor are not embodied in this device.

[0054] The beneficial effects of this embodiment are: the opening and contraction of the support column 1 are changed by 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 when the tail car is changed, so that accidents caused by problems in the hydraulic system and thus equipment damage can be avoided. The structure of this device is simple and light, and the support column 1 can be directly added to the original tail car structure. The cost of adding 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, and the control logic is clear. One-key control can be performed through the button in the driver's cab or the local control box to realize the automatic change control of the semi-lifting tail car without the need for additional operating steps.

[0055] 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 picking up 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 picking position, the tail car hydraulic station is stopped according to the signal of the sensor that has descended to the position.

[0056] Example 5 Based on step S2 in Example 3, like Figure 8-16 As shown, the following steps are included when retrieving and converting the pile: S21: When the tail car head needs to be changed to a pile state, the PLC system controls the tail car head to rise upward until the tail car head rises to 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 driving 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; S23: the first position sensor 6 senses that the support column 1 has retracted to the working limit position and transmits a signal to the PLC system; S24: The PLC system controls the head of the tail vehicle to descend downward until the detection sensor 5 detects that the head of the tail vehicle is disposed on the support arm 3 disposed between the two support pillars 1; S25: The automatic support protection device enters the working state.

[0057] Specifically, in this embodiment, the first position sensor 6 senses whether the two support columns 1 are retracted to the working position; the rising position sensor and the descending position sensor are set on the tail car itself, and the rising position sensor and the descending position sensor are not embodied in this device. The rising position sensor is a rising position sensor, which is used to sense whether the head of the tail car rises to the highest position set in advance; the descending position sensor is a descending position sensor, which is used to sense whether the head of the tail car descends to the position required for the material picking state.

[0058] The beneficial effects of this embodiment are: the opening and contraction of the support column 1 are changed by 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 when the tail car is changed, so that accidents caused by problems in the hydraulic system and thus equipment damage can be avoided. The structure of this device is simple and light, and the support column 1 can be directly added to the original tail car structure. The cost of adding 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, and the control logic is clear. One-key control can be performed through the button in the driver's cab or the local control box to realize the automatic change control of the semi-lifting tail car without the need for additional operating steps.

[0059] 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, and when it rises to the highest position, the support columns 1 on both sides shrink to the working position, and then the head of the tail car drops. When the detection sensor 5 senses the head of the tail car, the hydraulic station of the tail car stops, and the automatic support and protection device enters the working state.

[0060] 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, the first position sensor 6 senses whether the two support columns 1 are opened to the non-working position; the rising position sensor and the descending position sensor are arranged on the tail car, and the rising position sensor is the rising position sensor. The descending position sensor is the descending position sensor. The rising position sensor and the descending position sensor are not embodied in this device.

[0061] Example 6 Based on Example 4, like Figure 8-16 As shown in the figure, the specific application process of stacking material conversion and material taking is: 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, and the hydraulic system opens the hook between the main engine and the tail car. The PLC system controls the main engine to move forward and detach from the tail car. S112: When the main engine moves forward to a position where the tail car can be changed, the PLC system controls the main engine to stop moving forward; S113: The PLC system controls the driving system 4 on the two support columns 1 to open the two support columns 1 to the two sides in opposite ways. After the second position sensor 7 senses that the support column 1 is opened to the non-working position, it 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.

[0062] The beneficial effects of this embodiment are: the opening and contraction of the support column 1 are changed by 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 when the tail car is changed, so that accidents caused by problems in the hydraulic system and thus equipment damage can be avoided. The structure of this device is simple and light, and the support column 1 can be directly added to the original tail car structure. The cost of adding 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, and the control logic is clear. One-key control can be performed through the button in the driver's cab or the local control box to realize the automatic change control of the semi-lifting tail car without the need for additional operating steps.

[0063] 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 engine and the tail car, and the PLC system controls the main engine to move forward and detach from the tail car; when the main engine advances to the position where the tail car can be changed, the PLC system controls the main engine to stop moving forward; the PLC system controls the hydraulic cylinder of the tail car head to start, and the tail car head rises until it rises to the highest position. After the rising position sensor senses it, the signal is transmitted 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 facing manner, and the second position sensor 7 detects that the support column 1 is opened to the non-working position and transmits the signal to the PLC system; the PLC system controls the tail car head to start descending, and 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 engine to retreat until the main engine and the tail car are combined in place; when the main engine and the tail car are combined in place, the hook of the tail car and the main engine is automatically locked, connecting the tail car and the main engine into a whole.

[0064] Example 7 Based on Example 5, like Figure 8-16 As shown in the figure, the specific application process of material reclaiming and stacking is as follows: S211: The PLC system controls the tail car hydraulic station to start, opens the hook between the main engine and the tail car, and the PLC system controls the main engine to move forward and detach from the tail car; S212: When the main engine moves forward to a position where the tail car can be changed, the PLC system controls the main engine to stop moving forward; 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 driving system 4 on the two support columns 1 to retract the two support columns 1 inward to the working position in a relative manner. After the first position sensor 6 senses that the support column 1 has retracted to the working limit 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 set on the support arm 3 set 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 vehicle are in place; S217: 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.

[0065] The beneficial effects of this embodiment are: the opening and contraction of the support column 1 are changed by 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 when the tail car is changed, so that accidents caused by problems in the hydraulic system and thus equipment damage can be avoided. The structure of this device is simple and light, and the support column 1 can be directly added to the original tail car structure. The cost of adding 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, and the control logic is clear. One-key control can be performed through the button in the driver's cab or the local control box to realize the automatic change control of the semi-lifting tail car without the need for additional operating steps.

[0066] The working process of this embodiment is as follows: the PLC system controls the hydraulic station of the tail car to start, opens the hook between the main engine and the tail car, and controls the main engine to move forward and detach from the tail car; when the main engine advances to the position where the tail car can be changed, the PLC system controls the main engine to stop moving forward; the PLC system controls the hydraulic cylinder of the head of the tail car to start, and the head of the tail car rises. When it rises to the highest position, the rising position sensor senses it and transmits the signal to the PLC system; the PLC system controls the driving system 4 on the two support columns 1 to retract the two support columns 1 inwardly to the working position in a relative manner, and the first position sensor 6 senses that the support column 1 is retracted to the working limit and transmits the signal to the PLC system; the PLC system controls the head of the tail car to descend, and when the detection sensor 5 senses that the head of the tail car is set on the support arm 3 set 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 enters the working state; the PLC system controls the main engine to retreat until the main engine and the tail car are combined in place; when the main engine and the tail car are combined in place, the hook of the tail car and the main engine is automatically locked, connecting the tail car and the main engine into a whole.

[0067] 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 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, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0068] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present invention, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0069] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0070] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0071] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means 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 may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, unless they are contradictory.

[0072] Although the embodiments of the present invention have been shown and described above, it is to be understood that the above embodiments are exemplary and are not to be construed as limitations of the present invention. A person skilled in the art may change, modify, replace and vary the above embodiments within the scope of the present invention.

Claims

1. An automatic support and protection device, characterized in that: The invention comprises 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), wherein the base (2) is arranged at the bottom of the support column (1), the bottom of the base (2) is arranged on a tail vehicle platform, the support arm (3) is arranged on one side of the upper end of the support column (1), the detection sensor (5) is arranged 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 arranged on the tail vehicle platform, the first position sensor (6) and the second position sensor (7) are respectively installed on a part of the head of the tail vehicle, and there are two support columns (1), and the base (2), the support arm (3), the drive system (4) and the detection sensor (5) arranged on the two support columns (1) are symmetrically arranged.

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

3. The automatic support and 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 the two support columns (1) are connected; 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).

4. 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).

5. 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).

6. An application method of an automatic support protection device, characterized in that: An automatic support and protection device according to any one of claims 1 to 5, and an application method thereof comprises: 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 disposed on a support arm (3) disposed between two support columns (1), and the support column (1) provides support force for the head of the tail car; 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 the two sides of the tail car head, entering a non-working state.

7. The application method of the automatic support protection device according to claim 6, characterized in that: Based on step S1, the following steps are included when stacking material is changed and taken out: S11: When the tail car head needs to be changed to the material taking state, the PLC system controls the tail car head to rise upward until the tail car head rises to the highest position. After the rising position sensor senses the tail car head, the signal is transmitted to the PLC system; S12: The PLC system controls the driving system (4) on the two support columns (1) to open the two support columns (1) in a reverse manner toward both sides of the head of the tail vehicle; S13: the second position sensor (7) senses that the two support columns (1) are opened to the non-working position, and transmits a 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.

8. The application method of the automatic support protection device according to claim 6, characterized in that: Based on step S2, the following steps are included when retrieving and converting the pile: S21: When the tail car head needs to be changed to a pile state, the PLC system controls the tail car head to rise upward until the tail car head rises to 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 a 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 position, and transmits a signal to the PLC system; S24: The PLC system controls the head of the tail car to descend downward until the detection sensor (5) detects that the head of the tail car is disposed on a support arm (3) disposed between two support columns (1); S25: The automatic support protection device enters the working state.

9. The application method of the automatic support protection device according to claim 7, characterized in that: 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, and the hydraulic system opens the hook between the main engine and the tail car. The PLC system controls the main engine to move forward and detach from the tail car. S112: When the main engine moves forward to a position where the tail car can be changed, the PLC system controls the main engine to stop moving forward; S113: 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 reverse manner, and 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; 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.

10. The application method of the automatic support protection device according to claim 8, characterized in that: Specific application process based on steps S21-S25: S211: The PLC system controls the tail car hydraulic station to start, opens the hook between the main engine and the tail car, and the PLC system controls the main engine to move forward and detach from the tail car; S212: When the main engine moves forward to a position where the tail car can be changed, the PLC system controls the main engine to stop moving forward; 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 a working position in a mutually opposite manner, and the first position sensor (6) detects that the support columns (1) have retracted to the working position and 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 disposed on a support arm (3) disposed between two support columns (1), the PLC system controls the tail car hydraulic station to stop working, and the automatic support protection device enters a working state. S216: The PLC system controls the main engine to move backward until the main engine and the tail vehicle are in place; S217: 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.

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