Step-by-step heightening and jacking equipment for lifting large device and control method of step-by-step heightening and jacking equipment

Abstract

The invention discloses step-by-step heightening and jacking equipment for lifting a large device, which is characterized in that a lifting system base (2) is provided with a heightening block lifting oil cylinder (3), a heightening block locking device of a heightening block jacking platform (4) corresponds to a locking groove in position, a material preparation system is positioned on the outer side of a lifting system, heightening blocks (12) are stacked in a heightening block material preparation area (13), and the heightening block lifting oil cylinder (3) is connected with the heightening block jacking platform (4); the left side material preparation lifting device and the right side material preparation lifting device can separate the upper block-up block (12) from the bottom block-up block (12), and the bottom block-up block (12) is conveyed into the block-up block containing area (9) through the automatic feeding platform. The control method can control the lifting platform (4) to move to the position corresponding to a locking groove in the side face of the block-up block through the block-up block lifting oil cylinder (3); the block-up block (12) is arranged in the block-up block jacking platform (4) and locked in the block-up block jacking platform (4), the block-up block lifting oil cylinder (3) drives the block-up block jacking platform (4) to move so that the block-up block (12) can move, manpower and material resources can be saved, and the block-up efficiency can be greatly improved.

Description

Technical Field

[0001] The invention relates to a device for raising equipment and a control method thereof, in particular to a step-by-step raising device for raising large equipment and a control method thereof. Background Art

[0002] When large urban equipment such as elevated bridges need to be dismantled, square steel is used to make fixed-height jacking structures for on-site assembly, and the demolished parts of the elevated bridges are filled. However, due to the different heights of the elevated bridges, the jacking structures are often not matched and cannot be used when used on site, which leads to the need to make jacking structures of different sizes in actual applications. This jacking device can only do one-time jacking operations, and the height cannot be accurately calculated and mastered. Moreover, a large amount of work needs to be removed after use, which kills the problems of long construction period and high cost. At present, there are also padding devices used for dismantling or installing large equipment, but the current padding devices are only equipped with corresponding padding block conveying platforms, and there is no special padding block centralized material preparation platform. Therefore, only a single padding block can be directly placed on the conveying platform for transportation by transportation tools such as forklifts, so that only one padding block can be transported at a time. If there are many padding blocks, it will take many trips to transport all the padding blocks used for padding, which wastes a lot of manpower and material resources and greatly reduces the efficiency of padding work. Summary of the invention

[0003] The invention provides a step-by-step raising and lifting device for raising a large device and a control method thereof, which can not only save manpower and material resources, but also greatly improve the raising efficiency.

[0004] The present invention adopts the following technical scheme: a step-by-step raising and lifting device for raising a large device, which includes a material preparation system, a lifting system and a process control system, the control system includes a main controller, the lifting system mainly includes a base, a raising block lifting cylinder is installed around the upper part of the base, a raising block lifting platform is installed on the top of the raising block lifting cylinder, the bottom of the raising block lifting cylinder is installed on the upper part of the base, a displacement sensor I is installed on the lifting piston rod I of the raising block lifting cylinder, the displacement sensor I is used to monitor the up and down movement position of the lifting piston rod I, the signal output end of the displacement sensor I is connected to the input port I of the main controller correspondingly, the control port I of the main controller is connected to the control port of the raising block lifting cylinder, a raising block lifting area is set between the upper part of the base and the raising block lifting platform, the raising block lifting area corresponds to the raising block entrance and exit in the middle of the raising block lifting platform, the upper surface of the base is the raising block placement area, and raising block locking devices are installed around the raising block lifting platform, each raising block locking device is connected to a position located inside the raising block lifting platform The locking groove position on the side of the pad block that needs to be moved corresponds to the position of the locking groove on the side of the pad block that needs to be moved. The material preparation system is located on the outside of the lifting system. The material preparation system includes a welcoming platform, a left-side material preparation lifting device and a right-side material preparation lifting device. The bottom of the left-side material preparation lifting device and the bottom of the right-side material preparation lifting device are located at the two ends of the welcoming platform. Limit blocks are also provided on both sides of the welcoming platform. The limit blocks correspond to the limit grooves at the bottom of the pad block. The automatic feeding platform is installed on the upper part of the welcoming platform and in the pad block placement area. Several pad blocks are stacked from top to bottom and placed on the left side of the material preparation lifting device. The lifting platform of the raising block is driven by the lifting cylinder of the raising block, and the lifting platform is controlled by the lifting cylinder of the raising block to move to the position corresponding to the locking groove of the side of the raising block of the raising block locking device, and locked in the lifting platform of the raising block, and the lifting platform of the raising block is driven up and down by the lifting cylinder of the raising block, thereby driving the movement of the raising block.

[0005] Furthermore, the left-side material preparation lifting device and the right-side material preparation lifting device of the present invention are symmetrically distributed. The left-side material preparation lifting device includes a left limit support frame, a left base is provided at the inner bottom of the left limit support frame, a left lifting cylinder is vertically installed at the middle position of the left base, a left cross beam is horizontally installed on the left lifting cylinder, a left locking device is installed on the left cross beam, two symmetrical left linear guide rails are distributed in the vertical direction on the inner side surface of the left limit support frame, two ends of the inner side surface of the left cross beam are installed on the two left linear guide rails, and the left lifting cylinder It can push the left crossbeam to move up and down on the left linear guide rail, and at the same time, the left crossbeam drives the left locking device to move up and down. The right material preparation lifting device includes a right limit support frame, a right base is arranged at the inner bottom of the right limit support frame, a right lifting cylinder is vertically installed at the middle position of the right base, a right crossbeam is horizontally installed on the right lifting cylinder, the right locking device is installed on the right crossbeam, two symmetrical right linear guide rails are distributed in the vertical direction on the inner side surface of the right limit support frame, and the two ends of the inner side surface of the right crossbeam are installed on the two right linear guide rails. The lifting cylinder can push the right beam to move up and down on the right linear guide rail, and at the same time, the right beam drives the right locking device to move up and down. The padding block preparation area is located between the left limit support frame and the right limit support frame. When the bottom padding block needs to be transported, the left locking device and the right locking device respectively lock the second-to-last padding block that needs to be locked, and the left lifting cylinder and the right lifting cylinder respectively drive the left beam and the right beam to rise, driving the second-to-last layer and above padding blocks that need to be lifted and the bottom on the automatic feeding platform The raising blocks are separated, and the automatic feeding platform transports the bottom raising blocks to the raising block placement area to complete the loading process. The left lifting cylinder and the right lifting cylinder are both equipped with displacement sensor II, which is used to monitor the up and down movement positions of the left lifting piston rod II of the left lifting cylinder and the right lifting piston rod II of the right lifting cylinder. The signal output end of the displacement sensor II is correspondingly connected to the input port II of the main controller, and the control port II of the main controller is connected to the control ports of the left lifting cylinder and the right lifting cylinder.

[0006] Further, the left locking device described in the present invention includes two symmetrically arranged left locking members, each left locking member includes a left guide sleeve, a left locking block is placed in the left guide sleeve, both the left guide sleeve and the left locking block point to the pad block preparation area, a left pushing cylinder is installed on the upper part of the left guide sleeve, the left pushing cylinder and the left locking block are in transmission connection, the left pushing cylinder pushes the left locking block to move along the left guide sleeve, and the right locking device described in the right locking device includes two symmetrically arranged right locking members, each right locking member includes a right guide sleeve, a right locking block is placed in the right guide sleeve, both the right guide sleeve and the right locking block point to the pad block preparation area, a right pushing cylinder is installed on the upper part of the right guide sleeve, the right pushing cylinder and the right locking block are in transmission connection, the right pushing cylinder pushes the right locking block to move along the right The guide sleeve moves, and when the pad block needs to be lifted, the two left locking blocks on the left side extend into the left limit groove of the pad block of the second-to-last layer under the action of the left pushing cylinder, and the two right locking blocks on the right side extend into the right limit groove of the pad block of the second-to-last layer under the action of the right pushing cylinder, thereby locking the position of the pad block of the second-to-last layer. Displacement sensors III are installed on both the left locking block and the right locking block. The displacement sensor III installed on the left locking block is used to monitor the movement status of the left locking block, and the displacement sensor III installed on the right locking block is used to monitor the movement status of the right locking block. The signal output end of the displacement sensor III is correspondingly connected to the input port III of the main controller, and the control port III of the main controller is connected to the control ports of the left pushing cylinder and the right pushing cylinder.

[0007] Further, the automatic feeding platform described in the present invention includes a pallet base, a pad block conveying pallet is installed on the pallet base, a ball screw is installed at the bottom of the pallet base, two ends of the ball screw are connected to the sending and welcoming platform and the side of the pad block placement area through bearing seats respectively, a transmission device is installed on the ball screw, the transmission device includes a servo motor and a screw slider, a pulley I provided on the output shaft of the servo motor is connected to a pulley II provided on the ball screw through a transmission belt, a screw slider is installed on the ball screw, and the screw slider is connected to the pallet base through a connecting plate, the servo motor drives the ball screw to rotate through pulleys I and II, and a track wheel is installed at the bottom of the pallet base. After rotation, the ball screw drives the screw slider to slide horizontally back and forth on the ball screw, and the screw slider drives the track wheel of the pallet base to slide horizontally back and forth on the track installed on the sending and welcoming platform and in the pad block placement area. The movement of the pallet base also drives the pad block conveying pallet to make horizontal reciprocating motion. Position sensor I and position sensor II are respectively installed on the two bearing seats. Position sensor I is used to monitor the position of the padding block conveying pallet when it moves on the track part located on the welcoming platform. Position sensor II is used to monitor the position of the padding block conveying pallet when it moves on the track part located on the padding block placement area. Position sensor I and position sensor II are both connected to the input port IV of the main controller accordingly. The control port IV of the main controller is connected to the control port of the servo motor. Four vertically upward lifting cylinders are installed in the pallet base. The four lifting cylinders surround the padding block conveying pallet. The lifting piston rod III in each lifting cylinder is connected to the lower surface of the padding block conveying pallet. A position sensor III is provided on the lifting piston rod III of each lifting cylinder. Each position sensor III is used to monitor the telescopic position of the lifting piston rod III. All position sensors III are connected to the input port V of the main controller accordingly. The control port V of the main controller is connected to the control port of the lifting cylinder.

[0008] Furthermore, each pad block locking device of the present invention comprises a bolt telescopic oil cylinder and a bolt body, the bolt body is set in a flat block shape, the bolt body corresponds to the locking groove on the side of the pad block, one end of the bolt telescopic oil cylinder is provided with a cylinder base, the bolt telescopic oil cylinder is fixedly installed in the locking hole through the cylinder base, the telescopic piston rod IV in the bolt telescopic oil cylinder passes through the other end of the bolt telescopic oil cylinder and is connected to the bolt body for rotation support, a mounting groove is provided at a position on the side of the bolt body opposite to the telescopic piston rod IV, a transverse supporting shaft is installed in the mounting groove, and the telescopic piston rod IV extends into the mounting hole. The telescopic piston rod IV is in the slot, and the transverse support shaft vertically passes through the side of the telescopic piston rod IV to form a rotational support connection with the telescopic piston rod IV. The telescopic piston rod IV rotates around the transverse support shaft. When the pad block needs to be locked, the latch telescopic oil cylinder pushes the latch body through the telescopic piston rod IV to insert into the latch slot on the side of the pad block. A position sensor IV is installed on the telescopic piston rod IV. The position sensor IV is used to monitor the telescopic position of the telescopic piston rod IV. All position sensors IV are correspondingly connected to the input port VI of the main controller, and the input port VI of the main controller is connected to the control port of the latch telescopic oil cylinder.

[0009] Furthermore, the main controller described in the present invention is configured as a PLC controller.

[0010] The present invention provides a control method for raising large equipment by using a step-by-step raising and lifting device, which comprises the following steps: first, a plurality of raising blocks stacked from top to bottom are sent to a receiving platform at the bottom of a raising block preparation area between a left limit support frame and a right limit support frame by a forklift device; when the displacement sensor II detects that the left lifting piston rod II and the right lifting piston rod II move to a specified position, the displacement sensor II sends the detected position signal to a PLC controller; the PLC controller controls the left lifting cylinder to drive the left crossbeam and the right lifting cylinder to drive the right crossbeam to the position of the second-to-last raising block among the stacked raising blocks; then the PLC controller controls the left pushing cylinder to push the left locking block and the right pushing cylinder to push the right locking block to be respectively inserted into the left limit groove and the right limit groove on both sides of the second-to-last raising block to lock the position of the second-to-last raising block. The left and right lifting cylinders are then driven to respectively drive the left locking block and the right locking block to rise, thereby moving the pad blocks on the second-to-last layer and above upwards, driving the bottom pad blocks on the welcoming platform to separate from the remaining pad blocks. At this time, the bottom pad blocks are lifted upward by the lifting cylinders and separated from the limit blocks on both sides of the welcoming platform. The servo motor drives the pad block conveyor pallet equipped with the bottom pad blocks to move, and delivers the bottom pad blocks to the pad block placement area, completing the loading process of the first pad block. At this time, the PLC controller controls the four lifting cylinders to lift the first pad block so that the locking groove on the side of the pad block corresponds to the pin body on the pad block lifting platform, and the PLC controller controls The bolt telescopic cylinder drives the bolt body to be inserted into the locking groove to lock the position of the first pad block. Finally, the PLC controller controls the pad block lifting cylinder to move upward, and then the first pad block is moved upward through the pad block lifting platform. After the position sensor II detects the position of the pad block conveyor tray, it transmits the in-place signal of the pad block conveyor tray to the PLC controller. The PLC controller controls the servo motor to rotate in the opposite direction. The pad block conveyor tray returns to the welcoming platform driven by the servo motor to convey the next pad block. After the pad block conveyor tray is in place on the welcoming platform, the position sensor I detects the position of the pad block conveyor tray and controls the servo motor to stop working through the PLC controller. At this time, the PLC controller According to the position signals of the left lifting piston rod II and the right lifting piston rod II monitored by the displacement sensor II, the left lifting piston rod II and the right lifting piston rod II are controlled to drive the remaining padding blocks to descend to the returned padding block conveying tray, and then the above-mentioned operation steps are used to deliver the second-to-last padding block to the padding block placement area, thereby completing the delivery of the second padding block. The displacement sensor I monitors the position of the jacking piston rod I and sends the signal to the PLC controller. The PLC controller descends the padding block jacking platform to the position of the second padding block through the jacking piston rod I. At this time, the PLC controller also controls the left locking block and the right locking block to withdraw from the locking groove according to the position signals of the left locking block and the right locking block monitored by the displacement sensor III.Then control the left locking block and the right locking block to lock the position of the second padding block, and move the second padding block upward through the padding block lifting platform. At this time, the second padding block can lift the first padding block, and so on. According to the above steps, the remaining padding blocks are transported and lifted, so that the lifting operation of large equipment installation and transportation can be completed as needed.

[0011] The present invention has the following beneficial effects: after adopting the above technical scheme, the present invention is provided with a material preparation system, which can realize automatic circulation and separate transportation after preparing multiple pads, without manual operation, so that not only the degree of automation is high, but also the control system can be used to control multiple execution devices, so that multiple pad blocks can be prepared at the same time, and then the material can be automatically discharged, fed and automatically lifted and raised. A single forklift can be used to load multiple devices in one working cycle, which greatly improves the efficiency of material preparation and feeding, so that the padding operation of the lifting equipment can be completed quickly, and it can also save manpower and material resources, and can also greatly improve the efficiency of the padding operation. The present invention uses a servo motor to drive the padding block conveying tray to transport the padding block. Since it can effectively and accurately control the speed and position, the servo motor controls the ball screw to accurately control the position of the padding block conveying tray during the transmission process, so that the padding block on the padding block conveying tray can accurately reach the padding block lifting position, thereby improving the accuracy and efficiency of the padding block during the lifting process. The latch telescopic oil cylinder provided in the present invention pushes the latch body to extend into the latch groove on the side of the padding block. Since the piston rod and the latch body are connected through the transverse supporting shaft, the transverse supporting shaft can have supporting and rotating functions, so that the padding block can be supported more stably, the force is more uniform, and the safety of the padding block during lifting and lowering is ensured. In addition, the piston rod and the latch body are rotatably connected, so that the supporting angle of the latch body can be adjusted by rotating the latch body during the raising or lowering process of the padding block, thereby achieving a better supporting effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0013] Figure 1 It is a schematic diagram of the separate parts of the present invention.

[0014] Figure 2 This is a schematic diagram of the material preparation system of the present invention when loading materials.

[0015] Figure 3 It is a schematic diagram of the material preparation system of the present invention after completion.

[0016] Figure 4 It is a structural schematic diagram of the automatic feeding platform of the present invention when feeding.

[0017] Figure 5 It is a schematic diagram of the structure of the automatic feeding platform after feeding of the present invention.

[0018] Figure 6 It is a structural schematic diagram of the present invention in a jacking state.

[0019] Figure 7 And a structural schematic diagram of the automatic feeding platform of the present invention.

[0020] Figure 8 It is a structural schematic diagram of the locking device of the pad block of the present invention.

[0021] Fig. 9 It is a structural block diagram of the control system of the present invention. DETAILED DESCRIPTION

[0022] The preferred embodiments of the present invention are described in detail below in conjunction with the accompanying drawings so that the advantages and features of the present invention can be more easily understood by those skilled in the art, thereby making a clearer and more definite definition of the protection scope of the present invention.

[0023] exist Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 and Fig. 9The present invention provides a step-by-step raising and lifting device for raising a large device, which includes a material preparation system, a lifting system and a process control system. The control system includes a main controller 1. The lifting system mainly includes a base 2. A raising block lifting cylinder 3 is installed around the upper part of the base 2. A raising block lifting platform 4 is installed on the top of the raising block lifting cylinder 3. The bottom of the raising block lifting cylinder 3 is installed on the upper part of the base 2. A displacement sensor Ⅰ6 is installed on the lifting piston rod Ⅰ5 of the raising block lifting cylinder 3. The displacement sensor Ⅰ6 is used to monitor the up and down movement position of the lifting piston rod Ⅰ5. The signal output end of the displacement sensor Ⅰ6 is correspondingly connected to the input port Ⅰ of the main controller 1. The control port Ⅰ of the main controller 1 is connected to the control port Ⅰ of the raising block lifting cylinder 3. The port is connected, and a pad lifting area 7 is set between the upper part of the base 2 and the pad lifting platform 4. The pad lifting area 7 corresponds to the pad entrance and exit 8 in the middle of the pad lifting platform. The upper surface of the base 2 is a pad placement area 9. Pad locking devices are installed around the pad lifting platform 4. Each pad locking device corresponds to the locking groove position on the side of the pad to be moved in the pad lifting platform 4. The material preparation system is located on the outside of the lifting system. The material preparation system includes a welcoming platform 10, a left-side material preparation lifting device and a right-side material preparation lifting device. The bottom of the left-side material preparation lifting device and the bottom of the right-side material preparation lifting device are located at both ends of the welcoming platform 10. Limit blocks 11 are also provided on both sides of the welcoming platform 10. The limit blocks 1 1 corresponds to the limiting groove at the bottom of the padding block, the automatic feeding platform is installed on the upper part of the feeding platform 10 and in the padding block placement area 9, the six padding blocks 12 of this embodiment are stacked from top to bottom and placed in the padding block preparation area 13 between the left material preparation lifting device and the right material preparation lifting device, the left material preparation lifting device and the right material preparation lifting device can separate the upper padding block 12 from the bottom padding block 12 located on the automatic feeding platform, the bottom padding block 12 is transported by the automatic feeding platform to the padding block placement area 9, the padding block lifting cylinder 3 controls the lifting platform 4 to move to the position corresponding to the locking groove of the padding block locking device on the side of the padding block, and locks it in the padding block lifting platform 4, and the padding block lifting cylinder 3 drives the padding block lifting platform 4 to The left material preparation lifting device and the right material preparation lifting device are symmetrically distributed in this embodiment. The left material preparation lifting device includes a left limit support frame 55. A left base 14 is provided at the inner bottom of the left limit support frame 55. A left lifting cylinder 15 is vertically installed at the middle position of the left base 14. A left cross beam 16 is horizontally installed on the left lifting cylinder 15. The left locking device is installed on the left cross beam 16. Two symmetrical left linear guide rails 17 are distributed vertically on the inner side surface of the left limit support frame 55. The two ends of the inner side surface of the left cross beam 16 are installed on the two left linear guide rails 17. The left lifting cylinder 15 can push the left cross beam 16 to move up and down on the left linear guide rail 17. At the same time, the left cross beam 16 drives the left locking device to move up and down.The right side material preparation lifting device comprises a right limit support frame 18, a right base 19 is arranged at the inner bottom of the right limit support frame 18, a right lifting cylinder 20 is vertically installed at the middle position of the right base 19, a right cross beam 21 is horizontally installed on the right lifting cylinder 20, and a right locking device is installed on the right cross beam 21. Two symmetrical right linear guide rails 22 are distributed vertically on the inner side surface of the right limit support frame 18, and the two ends of the inner side surface of the right cross beam 21 are installed on the two right linear guide rails 22. The right lifting cylinder 20 can push the right cross beam 21 to move up and down on the right linear guide rail 17, and at the same time, the right cross beam 21 drives the right locking device to move up and down. The pad block preparation area is located between the left limit support frame 55 and the right limit support frame 18. When the bottom pad block needs to be transported, The left locking device and the right locking device respectively lock the second-to-last layer of the padding block 12 that needs to be locked, and the left lifting cylinder 15 and the right lifting cylinder 20 respectively drive the left crossbeam 16 and the right crossbeam 21 to rise, driving the second-to-last layer and above padding blocks 12 that need to be lifted to be separated from the bottom padding blocks 12 located on the automatic feeding platform. At this time, the automatic feeding platform transports the bottom padding blocks 12 to the padding block placement area 9 to complete the loading process. The left lifting cylinder 15 and the right lifting cylinder 20 are both equipped with displacement sensors Ⅱ23. The displacement sensor Ⅱ23 is used to monitor the up and down movement positions of the left lifting piston rod Ⅱ24 of the left lifting cylinder 15 and the right lifting piston rod Ⅱ25 of the right lifting cylinder 20. The signal output end of the displacement sensor Ⅱ23 is connected to the The input port II of the main controller 1 is connected correspondingly, and the control port II of the main controller 1 is connected to the control ports of the left lifting cylinder 15 and the right lifting cylinder 20. The left locking device used in this embodiment includes two symmetrically arranged left locking members, each of which includes a left guide sleeve 54, and a left locking block 27 is placed in the left guide sleeve 54. The left guide sleeve 54 and the left locking block 27 both point to the pad block preparation area. A left pushing cylinder 26 is installed on the upper part of the left guide sleeve 54. The left pushing cylinder 26 and the left locking block 27 are transmission-connected. The left pushing cylinder 26 pushes the left locking block 27 to move along the left guide sleeve 54. The right locking device includes two symmetrically arranged right locking members, each of which includes a right guide sleeve 28. A right locking block 29 is placed inside, and the right guide sleeve 28 and the right locking block 29 both point to the material preparation area of ​​the padding block. A right pushing cylinder 30 is installed on the upper part of the right guide sleeve 28. The right pushing cylinder 30 and the right locking block 29 are transmission connected. The right pushing cylinder 30 pushes the right locking block 29 to move along the right guide sleeve 28. When the padding block 12 needs to be lifted, the two left locking blocks 25 on the left side extend into the left limiting groove of the padding block 12 of the second-to-last layer under the action of the left pushing cylinder 26, and the two right locking blocks 29 on the right side extend into the right limiting groove of the padding block 12 of the second-to-last layer under the action of the right pushing cylinder 30, thereby locking the position of the padding block 12 of the second-to-last layer. Displacement sensors III 31 are installed on both the left locking block 25 and the right locking block 29.The displacement sensor III31 installed on the left locking block 25 is used to monitor the movement state of the left locking block 25, and the displacement sensor III31 installed on the right locking block 29 is used to monitor the movement state of the right locking block 29. The signal output end of the displacement sensor III31 is connected to the input port III of the main controller 1, and the control port III of the main controller 1 is connected to the control port of the left push cylinder 26 and the right push cylinder 30. Figure 7 In the embodiment, the automatic feeding platform used in the present invention comprises a tray base 32, a pad block conveying tray 33 is installed on the tray base 32, a ball screw 34 is installed at the bottom of the tray base 32, and both ends of the ball screw 34 are connected to the side of the welcoming platform 10 and the pad block placement area 9 through a bearing seat 35 respectively, and a transmission device is installed on the ball screw 34, and the transmission device includes a servo motor 36 and a screw slider, and a pulley I 38 provided on the output shaft of the servo motor 36 is connected to a pulley II 40 provided on the ball screw 34 through a transmission belt 39. A screw slider 41 is installed on the rod 34, and the screw slider 41 is connected to the tray base 32 through a connecting plate 42. The servo motor 36 drives the ball screw 34 to rotate through the pulley I 38 and the pulley II 40. A track wheel 43 is installed at the bottom of the tray base 32. After the rotation, the ball screw 34 drives the screw slider 41 to slide horizontally back and forth on the ball screw 34. The screw slider 41 drives the track wheel of the tray base 32 to slide horizontally back and forth on the welcoming platform 10 and on the track installed in the pad block placement area 9. The movement of the tray base 32 also drives the pad block to transport the tray 33 horizontally. Reciprocating motion, position sensors I 44 and II 45 are respectively installed on the two bearing seats 35, position sensor I 44 is used to monitor the position of the padding block conveying tray 33 when the track part on the welcoming platform 10 moves, and position sensor II 45 is used to monitor the position of the padding block conveying tray 33 when the track part on the padding block placement area 9 moves. Position sensor I 44 and position sensor II 45 are both connected to the input port IV of the main controller 1, and the control port IV of the main controller 1 is connected to the control port of the servo motor 36. The tray base 32 Four vertically upward lifting cylinders 46 are installed inside, and the four lifting cylinders 46 surround the pad block conveying tray 33. The lifting piston rod III47 in each lifting cylinder 46 is connected to the lower surface of the pad block conveying tray 33. A position sensor III48 is provided on the lifting piston rod III47 of each lifting cylinder 46. Each position sensor III48 is used to monitor the telescopic position of the lifting piston rod III47. All position sensors III48 are connected to the input port V of the main controller 1 accordingly. The control port V of the main controller 1 is connected to the control port of the lifting cylinder 46. Figure 8In the embodiment, each pad block locking device includes a bolt telescopic cylinder 49 and a bolt body 50. The bolt body 50 is set in a flat block shape. The bolt body 50 corresponds to the locking groove on the side of the pad block 12. One end of the bolt telescopic cylinder 49 is provided with a cylinder base 51. The bolt telescopic cylinder 49 is fixedly installed in the locking hole through the cylinder base 51. The telescopic piston rod IV52 in the bolt telescopic cylinder 49 passes through the other end of the bolt telescopic cylinder 49 and is connected to the bolt body 50 for rotation support. A mounting groove is provided on the side of the bolt body 50 at a position opposite to the telescopic piston rod IV52. A transverse support shaft is installed in the mounting groove. The telescopic piston rod IV52 extends into the mounting groove, and the transverse support shaft is rotated. The shaft vertically passes through the side of the telescopic piston rod IV52 to form a rotating support connection with the telescopic piston rod IV52. The telescopic piston rod IV52 rotates around the transverse support shaft. When it is necessary to lock the pad block 12, the latch telescopic cylinder 49 pushes the latch body 50 through the telescopic piston rod IV52 to insert into the latch groove on the side of the pad block 12. A position sensor IV53 is installed on the telescopic piston rod IV52. The position sensor IV53 is used to monitor the telescopic position of the telescopic piston rod IV52. All position sensors IV53 are correspondingly connected to the input port VI of the main controller 1. The input port VI of the main controller 1 is connected to the control port of the latch telescopic cylinder 49. The main controller 1 of this embodiment is set as a PLC controller.

[0024] exist Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 6The present invention provides a control method for raising large equipment by using a step-by-step raising and lifting device, which comprises the following steps: first, six raising blocks 12 stacked from top to bottom are delivered to the bottom receiving platform 10 of the raising block preparation area between the left limit support frame 55 and the right limit support frame 18 by a forklift device; when the displacement sensor Ⅱ 23 detects that the left lifting piston rod Ⅱ 24 and the right lifting piston rod Ⅱ 25 move to the specified position, the displacement sensor Ⅱ 23 sends the detected position signal to the PLC controller; the PLC controller controls the left lifting cylinder 15 to drive the left cross beam 16 and the right lifting cylinder 20 to drive the right cross beam 21 to the position of the second to last layer of raising blocks 12 in the stacked raising blocks 12; then the PLC controller controls the left pushing cylinder 26 to push the left locking block 25 and the right pushing cylinder 30 to push the right locking block 29 to be inserted into the reverse position respectively. The left limit grooves and the right limit grooves on both sides of the second-to-last layer of padding blocks 12 lock the position of the second-to-last layer of padding blocks, and then drive the left lifting cylinder 15 and the right lifting cylinder 20 to respectively drive the left locking block 25 and the right locking block 29 to rise, so that the padding blocks 12 of the second-to-last layer and above the second-to-last layer move upward, driving the bottom padding blocks 12 located on the welcoming platform 10 to separate from the remaining padding blocks 12. At this time, the bottom padding block 12 is lifted upward by the lifting cylinder 46 and separated from the limit blocks on both sides of the welcoming platform 10. The servo motor 36 drives the padding block conveying tray 33 equipped with the bottom padding block 12 to move, and delivers the bottom padding block 12 to the padding block placement area 9, completing the first padding block 12 During the loading process, the PLC controller controls the four lifting cylinders 46 to raise the first padding block 12, so that the locking groove on the side of the padding block 12 corresponds to the latch body 50 on the padding block lifting platform 4, and the PLC controller controls the latch telescopic cylinder 49 to drive the latch body 50 to be inserted into the locking groove to lock the position of the first padding block 12. Finally, the PLC controller controls the padding block lifting cylinder 49 to move upward, and then the first padding block 12 is moved upward through the padding block lifting platform 4. After the position sensor II 45 detects the position of the padding block conveying tray 33, it transmits the in-place signal of the padding block conveying tray 33 to the PLC controller, and the PLC controller controls the servo motor 36 to rotate in the opposite direction. The block conveying tray 33 is driven by the servo motor 36 to return to the welcoming platform 10 to convey the next padding block 12. After the padding block conveying tray 33 is in place on the welcoming platform 10, the position sensor Ⅰ44 detects the position of the padding block conveying tray 33 and controls the servo motor 36 to stop working through the PLC controller. At this time, the PLC controller controls the left lifting piston rod Ⅱ24 and the right lifting piston rod Ⅱ25 according to the position signals of the left lifting piston rod Ⅱ24 and the right lifting piston rod Ⅱ25 detected by the displacement sensor Ⅱ23 to drive the remaining padding blocks 12 to descend to the returned padding block conveying tray 33, and then the above-mentioned operation steps are used to deliver the second to last padding block 12 stacked to the padding block placement area 9.Thus, the second padding block 12 is transported, and the displacement sensor Ⅰ6 monitors the position of the lifting piston rod Ⅰ5 and sends the signal to the PLC controller. The PLC controller lowers the padding block lifting platform 4 to the position of the second padding block 12 through the lifting piston rod Ⅰ5. At this time, the PLC controller also controls the left locking block 25 and the right locking block 29 to withdraw from the locking groove according to the position signal of the left locking block 25 and the right locking block 29 monitored by the displacement sensor Ⅲ31, and then controls the left locking block 25 and the right locking block 29 to lock the position of the second padding block 12, and moves the second padding block 12 upward through the padding block lifting platform 4. At this time, the second padding block 12 can lift the first padding block 12, and so on. According to the above steps, the remaining padding blocks are transported and lifted, so that the lifting operation of large equipment installation and transportation can be completed as needed.

[0025] Without limitation to this, any changes or substitutions that are not conceived through creative work should be included in the protection scope of the present invention. Therefore, the protection scope of the present invention should be based on the protection scope defined in the claims.

Claims

1. A step-by-step lifting device for lifting large equipment, characterized in that It comprises a material preparation system, a lifting system and a control system. The control system comprises a main controller (1). The lifting system mainly comprises a base (2). A pad lifting cylinder (3) is installed around the upper part of the base (2). A pad lifting platform (4) is installed on the top of the pad lifting cylinder (3). The bottom of the pad lifting cylinder (3) is installed on the upper part of the base (2). A displacement sensor I (6) is installed on the lifting piston rod I (5) of the pad lifting cylinder (3). The displacement sensor I (6) is used to monitor the up and down movement position of the lifting piston rod I (5). The signal of the displacement sensor I (6) The output end is connected to the input port I of the main controller (1), and the control port I of the main controller (1) is connected to the control port of the pad lifting cylinder (3). A pad lifting area (7) is set between the upper part of the base (2) and the pad lifting platform (4). The pad lifting area (7) corresponds to the pad entrance (8) in the middle of the pad lifting platform. The upper surface of the base (2) is a pad placement area (9). Pad locking devices are installed around the pad lifting platform (4). Each pad locking device is connected to a locking device on the side of the pad that needs to be moved in the pad lifting platform (4). The material preparation system is located outside the lifting system, and the material preparation system includes a welcoming platform (10), a left material preparation lifting device and a right material preparation lifting device. The bottom of the left material preparation lifting device and the bottom of the right material preparation lifting device are located at two ends of the welcoming platform (10). Limit blocks (11) are also provided on both sides of the welcoming platform (10). The limit blocks (11) correspond to the limit grooves at the bottom of the padding blocks. The automatic feeding platform is installed on the upper part of the welcoming platform (10) and in the padding block placement area (9). A plurality of padding blocks (12) are stacked from top to bottom and placed on the left material preparation lifting device and the right material preparation lifting device. In the padding block preparation area (13) between the two parts, the left-side material preparation lifting device and the right-side material preparation lifting device can separate the upper padding block (12) from the bottom padding block (12) located on the automatic feeding platform, and the bottom padding block (12) is transported by the automatic feeding platform to the padding block placement area (9). The padding block lifting cylinder (3) controls the lifting platform (4) to move to a position corresponding to the locking groove of the padding block side by the padding block locking device, and locks it in the padding block lifting platform (4). The padding block lifting cylinder (3) drives the padding block lifting platform (4) to move up and down, thereby driving the padding block (12) to move.

2. The step-by-step lifting device for lifting large equipment according to claim 1 is characterized in that The left material preparation lifting device and the right material preparation lifting device are symmetrically arranged. The left material preparation lifting device comprises a left limit support frame (55). A left base (14) is arranged at the inner bottom of the left limit support frame (55). A left lifting cylinder (15) is vertically installed at the middle position of the left base (14). A left crossbeam (16) is horizontally installed on the left lifting cylinder (15). A left locking device is installed on the left crossbeam (16). Two symmetrical left linear guide rails (17) are vertically arranged on the inner side surface of the left limit support frame (55). Both ends of the inner side surface of the left crossbeam (16) are installed on the two left linear guide rails (17). The left lifting cylinder (15) can push the left crossbeam (16) to move the left crossbeam (16). ) is lifted and lowered on the left linear guide rail (17), and at the same time, the left crossbeam (16) drives the left locking device to lift and lower. The right material preparation lifting device includes a right limit support frame (18). A right base (19) is provided at the inner bottom of the right limit support frame (18). A right lifting cylinder (20) is vertically installed in the middle position of the right base (19). A right crossbeam (21) is horizontally installed on the right lifting cylinder (20). The right locking device is installed on the right crossbeam (21). Two symmetrical right linear guide rails (22) are distributed vertically on the inner side surface of the right limit support frame (18). The two ends of the inner side surface of the right crossbeam (21) are installed on the two right linear guide rails (22). The cylinder (20) can push the right crossbeam (21) to move up and down on the right linear guide rail (17), and at the same time, the right crossbeam (21) drives the right locking device to move up and down. The padding block preparation area is located between the left limit support frame (55) and the right limit support frame (18). When the bottom padding block needs to be transported, the left locking device and the right locking device respectively lock the padding block (12) of the second to last layer to be locked, and the left lifting cylinder (15) and the right lifting cylinder (20) respectively drive the left crossbeam (16) and the right crossbeam (21) to rise, driving the padding blocks (12) of the second to last layer and above to be lifted to separate from the bottom padding blocks (12) located on the automatic feeding platform. At this time, the automatic feeding platform transports the bottom padding block (12) to the padding block placement area (9) to complete the loading process. The left lifting cylinder (15) and the right lifting cylinder (20) are both equipped with a displacement sensor II (23). The displacement sensor II (23) is used to monitor the up and down movement positions of the left lifting piston rod II (24) of the left lifting cylinder (15) and the right lifting piston rod II (25) of the right lifting cylinder (20). The signal output end of the displacement sensor II (23) is correspondingly connected to the input port II of the main controller (1), and the control port II of the main controller (1) is connected to the control ports of the left lifting cylinder (15) and the right lifting cylinder (20).

3. The step-by-step lifting device for lifting large equipment according to claim 2 is characterized in that The left locking device comprises two symmetrically arranged left locking members, each of which comprises a left guide sleeve (54), a left locking block (27) being placed in the left guide sleeve (54), the left guide sleeve (54) and the left locking block (27) both pointing to the padding block preparation area, a left pushing cylinder (26) being installed on the upper part of the left guide sleeve (54), the left pushing cylinder (26) being transmission-connected to the left locking block (27), the left pushing cylinder (26) pushing the left locking block (27) along the left guide sleeve (54) The right locking device comprises two symmetrically arranged right locking members, each of which comprises a right guide sleeve (28), a right locking block (29) is placed in the right guide sleeve (28), the right guide sleeve (28) and the right locking block (29) both point to the padding block preparation area, a right pushing cylinder (30) is installed on the upper part of the right guide sleeve (28), the right pushing cylinder (30) and the right locking block (29) are in transmission connection, and the right pushing cylinder (30) pushes the right locking block (29) along the right guide sleeve When the padding block (12) needs to be lifted, the two left locking blocks (25) on the left side extend into the left limit groove of the padding block (12) of the second-to-last layer under the action of the left pushing cylinder (26), and the two right locking blocks (29) on the right side extend into the right limit groove of the padding block (12) of the second-to-last layer under the action of the right pushing cylinder (30), thereby locking the position of the padding block (12) of the second-to-last layer. Displacement sensors are installed on the left locking blocks (25) and the right locking blocks (29). The displacement sensor III (31) installed on the left locking block (25) is used to monitor the movement state of the left locking block (25), and the displacement sensor III (31) installed on the right locking block (29) is used to monitor the movement state of the right locking block (29). The signal output end of the displacement sensor III (31) is connected to the input port III of the main controller (1) correspondingly, and the control port III of the main controller (1) is connected to the control ports of the left pushing cylinder (26) and the right pushing cylinder (30).

4. The step-by-step lifting device for lifting large equipment according to claim 1 or 2, characterized in that The automatic feeding platform comprises a tray base (32), a pad block conveying tray (33) is installed on the tray base (32), a ball screw (34) is installed at the bottom of the tray base (32), two ends of the ball screw (34) are connected to the side of the welcoming platform (10) and the pad block placement area (9) through a bearing seat (35), a transmission device is installed on the ball screw (34), and the transmission device includes a servo motor (36) and a screw slider, a pulley I (38) provided on the output shaft of the servo motor (36) is connected to a pulley II (40) provided on the ball screw (34) through a transmission belt (39), and a transmission device is installed on the ball screw (34). A screw slider (41) is installed, and the screw slider (41) is connected to the tray base (32) through a connecting plate (42). The servo motor (36) drives the ball screw (34) to rotate through the pulley I (38) and the pulley II (40). A track wheel (43) is installed at the bottom of the tray base (32). After the rotation, the ball screw (34) drives the screw slider (41) to slide horizontally back and forth on the ball screw (34). The screw slider (41) drives the track wheel of the tray base (32) to slide horizontally back and forth on the rail installed on the welcoming platform (10) and the pad block placement area (9). The movement of the tray base (32) also drives the pad block to transport the tray (33). The two bearing seats (35) are respectively provided with position sensors I (44) and II (45). The position sensor I (44) is used to monitor the position of the raised block conveying tray (33) when the track portion located on the welcoming platform (10) moves. The position sensor II (45) is used to monitor the position of the raised block conveying tray (33) when the track portion located on the raised block placement area (9) moves. The position sensors I (44) and II (45) are both connected to the input port IV of the main controller (1) correspondingly. The control port IV of the main controller (1) is connected to the control port of the servo motor (36). The tray base (36) is connected to the control port IV of the servo motor (36). 2) four vertically upward lifting cylinders (46) are installed inside, and the four lifting cylinders (46) surround the pad block conveying tray (33). The lifting piston rod III (47) in each lifting cylinder (46) is connected to the lower surface of the pad block conveying tray (33). A position sensor III (48) is provided on the lifting piston rod III (47) of each lifting cylinder (46). Each position sensor III (48) is used to monitor the telescopic position of the lifting piston rod III (47). All position sensors III (48) are connected to the input port V of the main controller (1) correspondingly, and the control port V of the main controller (1) is connected to the control port of the lifting cylinder (46).

5. The step-by-step lifting device for lifting large equipment according to claim 1 is characterized in that Each pad block locking device comprises a bolt telescopic oil cylinder (49) and a bolt body (50). The bolt body (50) is arranged in a flat block shape. The bolt body (50) corresponds to the locking groove on the side of the pad block (12). One end of the bolt telescopic oil cylinder (49) is provided with a cylinder base (51). The bolt telescopic oil cylinder (49) is fixedly installed in the locking hole through the cylinder base (51). The telescopic piston rod IV (52) in the bolt telescopic oil cylinder (49) passes through the other end of the bolt telescopic oil cylinder (49) and is connected to the bolt body (50) in a rotational support. A mounting groove is provided at a position on the side of the bolt body (50) opposite to the telescopic piston rod IV (52). A transverse supporting shaft is installed in the mounting groove. The telescopic piston rod IV (52) extends into the mounting groove. The transverse support shaft vertically passes through the side of the telescopic piston rod IV (52) to form a rotational support connection with the telescopic piston rod IV (52). The telescopic piston rod IV (52) rotates around the transverse support shaft. When it is necessary to lock the padding block (12), the latch telescopic oil cylinder (49) pushes the latch body (50) through the telescopic piston rod IV (52) to insert into the latch groove on the side of the padding block (12). A position sensor IV (53) is installed on the telescopic piston rod IV (52). The position sensor IV (53) is used to monitor the telescopic position of the telescopic piston rod IV (52). All the position sensors IV (53) are correspondingly connected to the input port VI of the main controller (1), and the input port VI of the main controller (1) is connected to the control port of the latch telescopic oil cylinder (49).

6. The step-by-step lifting device for lifting large equipment according to claim 1 is characterized in that The main controller (1) is configured as a PLC controller.

7. A control method for raising large equipment by using step-by-step raising and lifting equipment, characterized in that It comprises the following steps: firstly, a plurality of stacked raising blocks (12) are delivered to the bottom delivery platform (10) of the raising block preparation area between the left limit support frame (55) and the right limit support frame (18) by a forklift device; when the displacement sensor II (23) detects that the left lifting piston rod II (24) and the right lifting piston rod II (25) move to the specified position, the displacement sensor II (23) sends the detected position signal to the PLC controller; the PLC controller controls the left lifting cylinder (15) to drive the left cross beam (16) and the right lifting cylinder (20) to drive the right cross beam (21) to the position of the second to last layer of the stacked raising blocks (12); then the PLC controller controls the left pushing cylinder (2 6) Push the left locking block (25) and the right pushing cylinder (30) to push the right locking block (29) to be inserted into the left limit groove and the right limit groove on both sides of the second-to-last padding block (12) to lock the position of the second-to-last padding block, and then drive the left lifting cylinder (15) and the right lifting cylinder (20) to respectively drive the left locking block (25) and the right locking block (29) to rise, so that the padding blocks (12) on the second-to-last layer and above the second-to-last layer move upward, driving the bottom padding block (12) on the welcoming platform (10) to separate from the other padding blocks (12). At this time, the bottom padding block (12) is lifted upward by the lifting cylinder (46) to separate from the limit grooves on both sides of the welcoming platform (10). After the positioning block is detached, the servo motor (36) drives the padding block conveying tray (33) equipped with the bottom padding block (12) to move, and delivers the bottom padding block (12) to the padding block placement area (9), completing the loading process of the first padding block (12). At this time, the PLC controller controls the four lifting cylinders (46) to lift the first padding block (12) so that the locking groove on the side of the padding block (12) corresponds to the latch body (50) on the padding block lifting platform (4). The PLC controller controls the latch telescopic cylinder (49) to drive the latch body (50) to be inserted into the locking groove to lock the position of the first padding block (12). Finally, the PLC controller controls the padding block lifting cylinder (49) to move upward. After the first padding block (12) moves upward, the padding block lifting platform (4) moves the first padding block (12) upward. After the position sensor II (45) detects the position of the padding block conveying tray (33), the padding block conveying tray (33) is sent to the PLC controller. The PLC controller controls the servo motor (36) to rotate in the opposite direction. The padding block conveying tray (33) is driven by the servo motor (36) to return to the welcoming platform (10) to convey the next padding block (12). After the padding block conveying tray (33) is in place on the welcoming platform (10), the position sensor I (44) detects the position of the padding block conveying tray (33) and controls the servo motor (36) to stop working through the PLC controller.At this time, the PLC controller controls the left lifting piston rod II (24) and the right lifting piston rod II (25) to drive the remaining padding blocks (12) to descend to the returned padding block conveying tray (33) according to the position signals of the left lifting piston rod II (24) and the right lifting piston rod II (25) monitored by the displacement sensor II (23), and then uses the above-mentioned operation steps to deliver the second-to-last padding block (12) to the padding block placement area (9), thereby completing the delivery of the second padding block (12). The displacement sensor I (6) detects the position of the lifting piston rod I (5) and sends the signal to the PLC controller. The PLC controller descends the padding block lifting platform (4) to the second padding block through the lifting piston rod I (5). The PLC controller controls the left locking block (25) and the right locking block (29) to withdraw from the locking groove according to the position signals of the left locking block (25) and the right locking block (29) monitored by the displacement sensor III (31), and then controls the left locking block (25) and the right locking block (29) to lock the position of the second padding block (12), and moves the second padding block (12) upward through the padding block lifting platform (4). At this time, the second padding block (12) can lift the first padding block (12), and so on. According to the above steps, the remaining padding blocks are transported and lifted, so that the lifting operation of large equipment installation and transportation can be completed as needed.

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