Recyclable lifting device and AGV omni-directional vehicle using same

Abstract

The application discloses a recyclable lifting device, which comprises a lifting machine, a hinge and a locking part, the lifting machine comprises an outer sleeve, a screw rod is rotatably arranged in the outer sleeve, a nut is threadedly connected to the screw rod, a guide mechanism is arranged between the nut and the outer sleeve, the nut can slide along the axial direction of the outer sleeve through the guide mechanism, an inner sleeve is fixedly connected to the nut, the inner sleeve is located between the screw rod and the outer sleeve, the screw rod is driven to rotate through a power mechanism, the outer sleeve can be switched between a lifting state and a recycling state through the hinge, and the outer sleeve can be kept in the recycling state through the locking part. The application further discloses an AGV omnidirectional vehicle using the recyclable lifting device. The purpose is to provide a recyclable lifting device and an AGV omnidirectional vehicle using the same, so that an operator can complete the disassembly and assembly of large mechanical bottom parts through simple operation, thereby greatly improving the efficiency of the whole maintenance work.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of AGV, in particular to a recyclable lifting device and AGV omni-directional vehicle using the same. BACKGROUND

[0002] Large machinery has many parts that can only be disassembled from the bottom, and when large-size parts are overhauled, it is time-consuming and laborious, especially when the parts are reassembled after the overhaul, since the crane cannot be used at the bottom of the machinery, the operator will spend a lot of time when aligning the installation base or the installation hole, and the whole overhaul process is inefficient. SUMMARY

[0003] The technical problem to be solved by the present application is to provide a recyclable lifting device and AGV omni-directional vehicle using the same, so that the operator only needs to perform simple operations to complete the disassembly and assembly of the bottom parts of the large machinery, thereby greatly improving the efficiency of the whole overhaul work.

[0004] The recyclable lifting device in the present application comprises a lifting machine, a hinge and a locking part, the lifting machine comprises an outer sleeve, a screw rod is rotatably installed in the outer sleeve, the screw rod is arranged along the axial direction of the outer sleeve, a nut is threadedly connected to the screw rod, a guide mechanism is arranged between the nut and the outer sleeve, the nut can slide along the axial direction of the outer sleeve through the guide mechanism, an inner sleeve is fixedly connected to the nut, the inner sleeve is located between the screw rod and the outer sleeve, the screw rod is driven to rotate by a power mechanism, the outer sleeve can be switched between a lifting state and a recycling state through the hinge, and the outer sleeve can be kept in the recycling state through the locking part.

[0005] In the recyclable lifting device in the present application, the lower end of the outer sleeve is fixedly arranged on a box-type base, the lower end of the screw rod extends into the base, a driven wheel is fixedly installed at the lower end of the screw rod, a bevel gear reverser is fixedly arranged on the base, an output shaft of the bevel gear reverser extends into the base, a driving wheel is fixedly installed on the output shaft of the bevel gear reverser, a conveyor belt is connected between the driving wheel and the driven wheel, the power mechanism is an electric motor, and the electric motor is connected with an input shaft of the bevel gear reverser.

[0006] In the recyclable lifting device in the present application, the guide mechanism comprises a sliding groove and a sliding block, the sliding groove is arranged on the inner cylinder wall of the outer sleeve and arranged along the axial direction of the outer sleeve, and the sliding block is fixedly arranged on the nut and located in the sliding groove.

[0007] The recyclable lifting device in the application, wherein the upper end of the outer sleeve is fixedly provided with a first end cover, the first end cover is annular, the lower end of the inner sleeve is fixedly connected to a nut, the upper end of the inner sleeve extends to the outside of the first end cover through the center hole of the first end cover, and a sealing ring is arranged between the first end cover and the inner sleeve.

[0008] The recyclable lifting device in the application, wherein the upper end of the inner sleeve is fixedly provided with a second end cover, the second end cover is provided with a top plate, and a damping pad is arranged between the top plate and the second end cover.

[0009] The recyclable lifting device in the application, wherein the base is fixedly arranged on an L-shaped bottom plate, the bottom plate comprises a horizontal plate and a vertical plate fixedly connected, the base is fixedly arranged on the horizontal plate, the hinge is a hinge, the hinge comprises a first hinge plate, a second hinge plate and a hinge shaft, the first hinge plate and the second hinge plate are rotationally connected through the hinge shaft, the first hinge plate is fixedly connected to the vertical plate, and the hinge and the base are respectively located on opposite sides of the vertical plate; when the first hinge plate rotates relative to the second hinge plate, the outer sleeve can be switched between the lifting state and the recycling state.

[0010] The recyclable lifting device in the application, wherein the locking member is a latch, the latch comprises a latch head and a latch seat, the latch head is fixedly arranged on the top plate, the latch seat is provided with a clamping groove matched with the latch head, and an elastic clamping member is arranged in the clamping groove; when the outer sleeve is in the recycling state, the latch head is located in the clamping groove of the latch seat and is clamped by the elastic clamping member; when the outer sleeve is in the lifting state, the latch head is separated from the clamping groove of the latch seat.

[0011] The recyclable lifting device in the application, wherein the latch seat comprises a mounting plate, two seat bodies are fixedly arranged on the mounting plate and spaced apart from each other, a gap between the two seat bodies forms a clamping groove, a through hole parallel to the mounting plate is arranged on each seat body, a third end cover is fixedly connected to the end of the through hole away from the clamping groove, a clamping ball is arranged in the through hole, a spring is connected between the clamping ball and the third end cover, the two clamping balls abut against each other under the action of the respective springs, the abutting ends of the two clamping balls are located in the clamping groove, the two clamping balls and the two springs jointly form the elastic clamping member, a groove is arranged on each of the opposite sides of the latch head, when the latch head is located in the clamping groove of the latch seat, the two clamping balls are respectively located on the opposite sides of the latch head and clamp the latch head, and the abutting ends of the two clamping balls are respectively located in the two grooves of the latch head.

[0012] The AGV omni-directional vehicle using the recyclable lifting device in the application comprises a whole vehicle chassis, four recyclable lifting devices are installed on the whole vehicle chassis, the four recyclable lifting devices form two recyclable lifting device groups, each recyclable lifting device group comprises two oppositely arranged recyclable lifting devices, the two recyclable lifting device groups are arranged on opposite sides of the whole vehicle chassis respectively, and the second hinge plate and the mounting plate of the latch seat of each recyclable lifting device are fixedly arranged on the whole vehicle chassis.

[0013] The AGV omni-directional vehicle in the application, wherein the two recyclable lifting device groups are a first recyclable lifting device group and a second recyclable lifting device group,

[0014] When the outer sleeve of the first recyclable lifting device group changes from the lifting state to the recycling state, the outer sleeve of the first recyclable lifting device group rotates towards the direction close to the second recyclable lifting device group, when the outer sleeve of the second recyclable lifting device group changes from the lifting state to the recycling state, the outer sleeve of the second recyclable lifting device group rotates towards the direction close to the first recyclable lifting device group, or

[0015] When the outer sleeve of the first recyclable lifting device group changes from the lifting state to the recycling state, the outer sleeve of the first recyclable lifting device group rotates towards the direction away from the second recyclable lifting device group, when the outer sleeve of the second recyclable lifting device group changes from the lifting state to the recycling state, the outer sleeve of the second recyclable lifting device group rotates towards the direction away from the first recyclable lifting device group.

[0016] The difference between the recyclable lifting device and the AGV omnidirectional vehicle using the same and the prior art is that, when the parts to be repaired are disassembled from the bottom of the large machine, the outer sleeve in the lifting state is first rotated downward around the hinge to become a recycling state, and the outer sleeve is kept in the recycling state by the locking member (i.e. the outer sleeve is fixed on the whole vehicle chassis of the AGV omnidirectional vehicle by the locking member), so that the height of the AGV omnidirectional vehicle can be reduced, and then the AGV omnidirectional vehicle is controlled to enter the disassembly position at the bottom of the large machine, and then the operator releases the locking member, and then the outer sleeve is rotated upward around the hinge to become a lifting state, and then the screw rod is driven to rotate by the power mechanism, and due to the action of the guide mechanism, the nut slides upward along the axial direction of the outer sleeve, so that the inner sleeve fixedly connected to the nut extends upward from the outer sleeve until the upper end of the inner sleeve contacts the parts to be repaired, and then the operator removes the connecting screw between the parts to be repaired and the large machine, and then the screw rod is driven to rotate reversely by the power mechanism, so that the inner sleeve moves downward and retracts into the outer sleeve, and the parts to be repaired also move downward together with the inner sleeve, and when the parts to be repaired are completely separated from the large machine, the AGV omnidirectional vehicle can be controlled to transport the parts to be repaired out of the bottom of the large machine. When the parts are needed to be installed at the bottom of the large machine, the outer sleeve is in the lifting state, and the inner sleeve is adjusted to a suitable height, and then the parts are placed on the upper end of the inner sleeve, and then the AGV omnidirectional vehicle is controlled to enter the installation position at the bottom of the large machine, and then the inner sleeve extends upward until the parts contact the large machine, and then the operator connects the parts and the large machine by the screw, and then the inner sleeve is retracted into the outer sleeve, and of course the outer sleeve can be changed from the lifting state to the recycling state and locked by the locking member, and finally the AGV omnidirectional vehicle is driven out of the bottom of the large machine. Therefore, by using the present application, the operator only needs to perform simple operations to complete the disassembly and assembly of the parts at the bottom of the large machine, thereby greatly improving the efficiency of the whole repair work.

[0017] The present application will be further described below in conjunction with the drawings. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 FIG. 1 is a structural schematic diagram of the AGV omnidirectional vehicle in the present application (the outer sleeve is in the recycling state);

[0019] Figure 2 FIG. 3 is a structural schematic diagram of the AGV omnidirectional vehicle in the present application (the outer sleeve is in the recycling state and the whole vehicle skin is hidden);

[0020] Figure 3 FIG. 5 is a structural schematic diagram of the AGV omnidirectional vehicle in the present application (the outer sleeve is in the recycling state, and the whole vehicle skin, the drive box, the integrated control box and the battery pack are hidden);

[0021] Figure 4It is the structure schematic view of AGV omni-directional vehicle in the application (the outer sleeve is in the lifting state);

[0022] Figure 5 It is the structure schematic view of AGV omni-directional vehicle in the application (the outer sleeve is in the lifting state and hides the whole vehicle skin, drive box, control box and battery pack);

[0023] Figure 6 It is the structure schematic view of recyclable lifting device in the application;

[0024] Figure 7 It is the A view in the application; Figure 6

[0025] Figure 8 It is the internal structure schematic view of recyclable lifting device in the application;

[0026] Figure 9 It is the structure schematic view of bottom plate in the application;

[0027] Figure 10 It is the structure schematic view of latch in the application;

[0028] Figure 11 It is the structure schematic view of latch head in the application;

[0029] Figure 12 It is the structure schematic view of latch seat in the application (when two clamping balls abut against each other);

[0030] Figure 13 It is the structure schematic view of latch seat in the application (when two clamping balls are away from each other);

[0031] Figure 14 It is the structure schematic view of two clamping balls clamping the latch head in the application. DETAILED DESCRIPTION

[0032] As shown in Figure 1 and shown in Figures 2-14 , the recyclable lifting device in the application includes a lifting machine 5, a hinged piece 21 and a locking piece, the lifting machine 5 includes an outer sleeve 19, a screw rod 31 is rotatably installed in the outer sleeve 19 through a bearing 32, the screw rod 31 is arranged along the axial direction of the outer sleeve 19, a nut 30 is threadedly connected to the screw rod 31, a guide mechanism is arranged between the nut 30 and the outer sleeve 19, the nut 30 can slide along the axial direction of the outer sleeve 19 through the guide mechanism, an inner sleeve 20 is fixedly connected to the nut 30, the inner sleeve 20 is located between the screw rod 31 and the outer sleeve 19, the screw rod 31 is driven to rotate through a power mechanism, the outer sleeve 19 can be switched between a lifting state and a recycling state through the hinged piece 21, and the outer sleeve 19 can be kept in the recycling state through the locking piece.​

[0033] The recycling lifting device is installed on the AGV omnidirectional vehicle in specific use, that is, the outer sleeve 19 of the elevator 5 is installed on the whole vehicle chassis 1 of the AGV omnidirectional vehicle through the hinge 21, when the to-be-inspected parts at the bottom of the large machine are disassembled, the outer sleeve 19 in the lifting state is first rotated downward around the hinge 21 to become the recycling state, and the outer sleeve 19 is kept in the recycling state through the locking piece (that is, the outer sleeve 19 is fixed on the whole vehicle chassis 1 of the AGV omnidirectional vehicle through the locking piece), so that the whole vehicle height of the AGV omnidirectional vehicle can be reduced, then the AGV omnidirectional vehicle is controlled to enter the disassembly position at the bottom of the large machine, then the operator releases the locking piece, and then the outer sleeve 19 is rotated upward around the hinge 21 to become the lifting state (at this time, the axis of the elevator 5 is in the vertical direction), then the screw rod 31 is driven to rotate through the power mechanism, and due to the action of the guide mechanism, the nut 30 slides upward along the axial direction of the outer sleeve 19, so that the inner sleeve 20 fixedly connected to the nut 30 extends upward from the outer sleeve 19 until the upper end of the inner sleeve 20 contacts the to-be-inspected part, after the operator removes the connecting screw of the to-be-inspected part and the large machine, the screw rod 31 is reversely driven to rotate through the power mechanism, so that the inner sleeve 20 moves downward and retracts into the outer sleeve 19, and the to-be-inspected part also moves downward together with the inner sleeve 20, when the to-be-inspected part is completely separated from the large machine, the AGV omnidirectional vehicle can be controlled to transport the to-be-inspected part out from the bottom of the large machine. When the part needs to be installed at the bottom of the large machine, the outer sleeve 19 is in the lifting state, and the inner sleeve 20 is adjusted to a suitable height, then the part is placed on the upper end of the inner sleeve 20, then the AGV omnidirectional vehicle is controlled to enter the installation position at the bottom of the large machine, the inner sleeve 20 is extended upward until the part contacts the large machine, then the operator connects the part and the large machine through the screw, then the inner sleeve 20 is retracted into the outer sleeve 19, of course, the outer sleeve 19 can also be changed from the lifting state to the recycling state and locked through the locking piece, and finally the AGV omnidirectional vehicle is driven out from the bottom of the large machine. As can be seen, through the use of the present application, the operator only needs to perform simple operation to complete the disassembly and assembly of the parts at the bottom of the large machine, thereby greatly improving the efficiency of the whole inspection work.

[0034] As Figures 6-8As shown in the figure, the lower end of the outer sleeve 19 is fixed on a box base 15, the lower end of the screw rod 31 extends into the base 15, the lower end of the screw rod 31 is fixedly installed with a driven wheel 33, the base 15 is fixedly provided with a bevel gear reversing gear 16, the output shaft 36 of the bevel gear reversing gear 16 extends into the base 15, the output shaft 36 of the bevel gear reversing gear 16 is fixedly installed with a driving wheel 35, the driving wheel 35 and the driven wheel 33 are connected with a conveyor belt 34, and the power mechanism is a motor 17, which is connected with the input shaft 37 of the bevel gear reversing gear 16.

[0035] As shown in the figure, Figure 8 The guide mechanism includes a sliding groove 41 and a sliding block 40, the sliding groove 41 is arranged on the inner cylinder wall of the outer sleeve 19 and along the axial direction of the outer sleeve 19, and the sliding block 40 is fixedly arranged on the nut 30 and located in the sliding groove 41.

[0036] The bevel gear reversing gear 16 belongs to the prior art, which includes a gear box body, two bevel gears are arranged in the gear box body and mesh with each other, and the axes of the two bevel gears are perpendicular to each other. In this embodiment, as shown in the figure, Figure 8 The axes of the two bevel gears are arranged horizontally and vertically respectively, the bevel gear with the horizontal axis is a first bevel gear 38, the bevel gear with the vertical axis is a second bevel gear 39, the first bevel gear 38 is fixedly connected with the input shaft 37 of the bevel gear reversing gear 16, and the second bevel gear 39 is fixedly connected with the output shaft 36 of the bevel gear reversing gear 16. When the motor 17 is started, the motor 17 can drive the first bevel gear 38 to rotate through the input shaft 37 of the bevel gear reversing gear 16, the first bevel gear 38 in turn drives the second bevel gear 39 to rotate, and then the second bevel gear 39 in turn drives the output shaft 36 of the bevel gear reversing gear 16 and the driving wheel 35 to rotate together, and the driving wheel 35 drives the driven wheel 33 and the screw rod 31 to rotate together through the conveyor belt 34. When the screw rod 31 rotates, since the sliding block 40 on the nut 30 is located in the sliding groove 41 of the outer sleeve 19, the nut 30 will not rotate with the screw rod 31 but will only slide along the axial direction of the outer sleeve 19 through the sliding block 40 and the sliding groove 41, and then the inner sleeve 20 fixedly arranged on the nut 30 will extend upward or retract downward from the outer sleeve 19.

[0037] As shown in the figure, Figure 8As shown in the drawings, the upper end of the outer sleeve 19 is fixedly installed with a first end cover 29, the first end cover 29 is annular, the lower end of the inner sleeve 20 is fixedly connected on a nut 30, the upper end of the inner sleeve 20 extends to the outside of the first end cover 29 after passing through the center hole of the first end cover 29, a sealing ring 28 is arranged between the first end cover 29 and the inner sleeve 20, and the sealing ring 28 is arranged on the first end cover 29. The first end cover 29 can guide the inner sleeve 20 to move more stably when moving upward or downward, and can also seal the outer sleeve 19 to prevent dust and other impurities from entering the outer sleeve 19.

[0038] As shown in the drawings, Figure 7 , 8 , the upper end of the inner sleeve 20 is fixedly installed with a second end cover 27, the second end cover 27 is provided with a top plate 12, and a damping pad 26 is arranged between the top plate 12 and the second end cover 27.

[0039] As shown in the drawings, Figure 6 , in combination with Figures 1-5 , 7, 9, the base 15 is fixedly arranged on an L-shaped bottom plate 18 by screws, the bottom plate 18 includes a horizontal plate 43 and a vertical plate 42 fixedly connected, the base 15 is fixedly arranged on the horizontal plate 43 by screws, the hinge 21 is a hinge, the hinge includes a first hinge plate 24, a second hinge plate 25 and a hinge shaft, the first hinge plate 24 and the second hinge plate 25 are rotatably connected by the hinge shaft, the first hinge plate 24 is fixedly connected on the vertical plate 42, and the hinge and the base 15 are respectively located on opposite sides of the vertical plate 42. When the first hinge plate 24 rotates relative to the second hinge plate 25, the outer sleeve 19 can be switched between the lifting state and the recovery state. Of course, when the first hinge plate 24 rotates relative to the second hinge plate 25, the bottom plate 18, the base 15 and the outer sleeve 19 fixedly arranged on the bottom plate 18 also rotate with the first hinge plate 24, so that the outer sleeve 19 can be switched between the lifting state and the recovery state.

[0040] As shown in the drawings, Figure 3 , in combination with Figure 5 , 6 , 7, 10-14, the locking member is a latch, the latch includes a latch head 22 and a latch seat 14, the latch head 22 is fixedly arranged on the top plate 12, the latch seat 14 is provided with a clamping groove 51 matched with the latch head 22, and an elastic clamping member is arranged in the clamping groove 51. When the outer sleeve 19 is in the recovery state, the latch head 22 is located in the clamping groove 51 of the latch seat 14 and is clamped by the elastic clamping member, and when the outer sleeve 19 is in the lifting state, the latch head 22 is separated from the clamping groove 51 of the latch seat 14.

[0041] The latch seat 14 includes a mounting plate 45, on which two seat bodies 49 are fixedly arranged at a distance from each other. The gap between the two seat bodies 49 forms a clamping groove 51. Each seat body 49 has a through hole 46 parallel to the mounting plate 45. A third end cap 47 is fixedly connected to the end of the through hole 46 away from the clamping groove 51. A clamping ball 50 is installed in the through hole 46. A spring 48 connects the clamping ball 50 and the third end cap 47. The two clamping balls 50 are connected to each other. The two clamping balls 50 abut against each other under the action of the spring 48. The abutting ends of the two clamping balls 50 are located in the clamping groove 51. The two clamping balls 50 and the two springs 48 together constitute the elastic clamping member. The locking head 22 is provided with a groove 44 on each of its opposite sides. When the locking head 22 is located in the clamping groove 51 of the locking seat 14, the two clamping balls 50 are located on the opposite sides of the locking head 22 and clamp the locking head 22. The abutting ends of the two clamping balls 50 are located in the two grooves 44 of the locking head 22 respectively.

[0042] The third end cap 47 can be fixedly connected to the end of the through hole 46 away from the clamping groove 51 by means of threaded connection. When installing the clamping ball 50, first connect the two ends of the spring 48 to the third end cap 47 and the clamping ball 50 respectively. Then, insert the clamping ball 50, the spring 48 and the third end cap 47 into the through hole 46 from the end of the through hole 46 away from the clamping groove 51 in sequence, and tighten the third end cap 47 on the through hole 46.

[0043] The latch head 22 is fixed to the top plate 12 via the connecting plate 13, that is, the latch head 22 is fixed to the connecting plate 13 by screws, and the connecting plate 13 is in turn fixed to the top plate 12 by screws. Under the action of a certain force, the latch head 22 strikes the latch seat 14, and the latch head 22 enters the clamping groove 51 and knocks apart the two clamping balls 50 that are abutting each other. Under the action of the spring 48, the two clamping balls 50 clamp the latch head 22 tightly, so the latch head 22 is embedded in the latch seat 14 and locked. Under the action of the opposite force, the latch head 22 can be disengaged from the clamping groove 51 of the latch seat 14. At this time, the two clamping balls 50 return to the abutting state under the action of the spring 48.

[0044] like Figure 1 As shown, and in combination Figures 2-14 As shown, the AGV omnidirectional vehicle using the above-mentioned retractable lifting device in this invention includes a vehicle chassis 1. Four retractable lifting devices are installed on the vehicle chassis 1. The four retractable lifting devices form two retractable lifting device groups. Each retractable lifting device group includes two retractable lifting devices arranged opposite each other. The two retractable lifting device groups are respectively arranged on opposite sides of the vehicle chassis 1. The second hinge plate 25 and the mounting plate 45 of the collision lock seat 14 of each retractable lifting device are fixed to the vehicle chassis 1 by screws.

[0045] As Figure 3 , 5 , 6, 9, in the embodiment, two recyclable lifting devices in each recyclable lifting device group share a bottom plate 18, and it can also be understood that the bottom plates 18 of the two recyclable lifting devices are fixedly connected through an integrated forming mode. When the outer sleeve 19 of the lifting machine 5 is in the lifting state, the bottom surface of the horizontal plate 43 of the bottom plate 18 is in contact with the whole vehicle chassis 1.

[0046] As Figures 1-5 shown, in the embodiment, the two recyclable lifting device groups are arranged at the head side and the tail side of the whole vehicle chassis 1 respectively.

[0047] In order to avoid that the whole vehicle height size of the AGV omnidirectional vehicle is too high, so as to be unable to enter the bottom of a large machine to carry out disassembly work, the recyclable lifting device is fixed on the whole vehicle chassis 1 through a hinge, and the recyclable lifting device is in the recycling position (i.e. the outer sleeve 19 is in the recycling state) before entering the bottom of the large machine, the latch head 22 is locked by the latch seat 14, so that the whole recyclable lifting device is locked on the whole vehicle chassis 1. At this time, the height of the whole equipment is the ground clearance of the upper surface of the whole vehicle chassis 1.

[0048] As Figures 1-5 shown, the whole vehicle chassis 1 of the AGV omnidirectional vehicle in the application is a whole frame structure, which is welded by steel materials, and the remaining parts of the AGV omnidirectional vehicle are installed on the whole vehicle chassis 1, and the remaining parts include an omnidirectional shaft system, a driving box 9, a control box 10, a battery pack 11 and a whole vehicle skin. Since the remaining parts of the AGV omnidirectional vehicle are prior art, only the following simple description is made:

[0049] (1) The whole vehicle skin is mainly composed of a head skin 7, a tail skin 3, a control box skin 8, a battery pack skin 4 and a driving box skin 6. The whole vehicle skin is installed on the top of the whole vehicle chassis 1, and can effectively protect the electrical elements, cables and mechanical elements in the vehicle body;

[0050] (2) The omnidirectional shaft system is composed of a Mecanum wheel 2, a reducer and a servo motor. The servo motor drives the Mecanum wheel 2 through the reducer. The Mecanum wheel 2 can realize omnidirectional movement, and has high movement precision, and can realize accurate positioning during the disassembly process of the parts;

[0051] (3) The driving box 9, the control box 10 and the battery pack 11 form the electrical control system of the AGV omnidirectional vehicle. The battery pack 11 provides power for the whole vehicle movement, the control box 10 is used for receiving remote control and other control signals, and communicates with the driving box 9. The driving box 9 receives the motor speed signal issued by the control box 10 to control the movement of the servo motor, and then drives the Mecanum wheel 2.

[0052] AsFigures 1-5 As shown, when disassembling the parts to be repaired at the bottom of large machinery, the outer sleeve 19, which is in a lifted state, is first rotated downward around the hinge 21 to become a retracted state. The outer sleeve 19 is then held in the retracted state by the bump lock, which reduces the overall height of the AGV omnidirectional vehicle. The AGV omnidirectional vehicle is then controlled to enter the disassembly position at the bottom of the large machinery. Next, the operator rotates the outer sleeve 19 upward, causing the bump lock head 22 to disengage from the clamping groove 51 of the bump lock seat 14, releasing the locking mechanism. The outer sleeve 19 is then rotated upward again to become a lifted state (at this time, the axis of the elevator 5 is in the vertical direction). Then, the screw 31 is driven to rotate by the motor 17. Due to the action of the slider 40 and the slide groove 41... Nut 30 slides upward along the axial direction of outer sleeve 19, so inner sleeve 20, which is fixedly connected to nut 30, extends upward from inside outer sleeve 19 until top plate 12 contacts the part to be repaired. After the operator removes the connecting screws between the part to be repaired and the large machinery, motor 17 drives screw 31 to rotate in the opposite direction, so inner sleeve 20 moves downward and retracts into outer sleeve 19. Part to be repaired also moves downward with inner sleeve 20. When part to be repaired is completely separated from the large machinery, fasteners (such as pins) are used to fix part to be repaired on top plate 12. Then, the AGV omnidirectional vehicle can be controlled to transfer part to be repaired from the bottom of the large machinery. When components need to be installed at the bottom of large machinery, the outer sleeve 19 is raised, and the inner sleeve 20 is adjusted to a suitable height. The component is then placed on the top plate 12 and secured to it using fasteners (such as pins). Next, the AGV (Automated Guided Vehicle) is moved to the installation position at the bottom of the large machinery. The inner sleeve 20 is then extended upwards until the component contacts the large machinery. The operator then connects the component to the machinery using screws. The inner sleeve 20 is then retracted back into the outer sleeve 19. Alternatively, the outer sleeve 19 can be moved from the raised state to the retracted state and locked using a latch. Finally, the AGV is driven out from under the large machinery. Therefore, by using this invention, operators can easily complete the disassembly and assembly of components at the bottom of large machinery, greatly improving the efficiency of the entire maintenance process.

[0053] like Figure 7 , 8 As shown, in order to avoid damage to parts or elevator 5 caused by vibration during the transfer process, the present invention installs a vibration damping pad 26 between the top plate 12 and the second end cover 27 of the inner sleeve 20, which can effectively absorb the vibration energy during the transfer and reduce the harm of vibration.

[0054] like Figure 6 As shown, in order to ensure the stability of the parts during the transfer process, the top plate 12 is provided with pin holes 23, which can be used to fix the parts by passing through the fixing holes and pin holes 23 on the parts.

[0055] As shown in Figures 1-5 , and in combination with Figure 6 , 7 , 9, the AGV omnidirectional vehicle in the present application, wherein the two said recyclable lifting device groups are respectively a first recyclable lifting device group arranged on the front side of the vehicle and a second recyclable lifting device group arranged on the rear side of the vehicle, when the outer sleeve 19 of the first recyclable lifting device group changes from the lifting state to the recycling state, the outer sleeve 19 of the first recyclable lifting device group rotates towards the direction close to the second recyclable lifting device group, and when the outer sleeve 19 of the second recyclable lifting device group changes from the lifting state to the recycling state, the outer sleeve 19 of the second recyclable lifting device group rotates towards the direction close to the first recyclable lifting device group.

[0056] In this way, by adopting the above arrangement, the first recyclable lifting device group and the second recyclable lifting device group can form a stable force structure, assuming that the first recyclable lifting device group on the front side of the vehicle has a tendency to rotate towards the recycling position, due to the pin shaft that connects the parts and the first recyclable lifting device group together, this tendency will make the second recyclable lifting device group on the rear side of the vehicle rotate towards the direction away from the recycling position, but at this time the bottom surface of the horizontal plate 43 of the bottom plate 18 of the second recyclable lifting device group on the rear side of the vehicle has contacted with the whole vehicle chassis 1, which will prevent this movement tendency, thereby ensuring that the shaft line of the elevator 5 of the two recyclable lifting device groups is always in the vertical position.

[0057] Of course, the first recyclable lifting device group and the second recyclable lifting device group can also be arranged as follows:

[0058] When the outer sleeve 19 of the first recyclable lifting device group changes from the lifting state to the recycling state, the outer sleeve 19 of the first recyclable lifting device group rotates away from the second recyclable lifting device group, and when the outer sleeve 19 of the second recyclable lifting device group changes from the lifting state to the recycling state, the outer sleeve 19 of the second recyclable lifting device group rotates away from the first recyclable lifting device group. Similarly, this arrangement can also make the first recyclable lifting device group and the second recyclable lifting device group form a stable force structure, the principle of which is described above, and will not be repeated here.

[0059] The beneficial effects of the present application are as follows:

[0060] (1) By simply operating the remote control, the movement of the AGV omnidirectional vehicle and the lifting of the lifting device can be realized, which is convenient to operate;

[0061] (2) The recyclable lifting device can effectively control the height of the vehicle body, and is suitable for the maintenance of mechanical chassis parts;

[0062] (3) The lifting device is symmetrically arranged, so that the transfer process is more stable, and overturning is effectively avoided;

[0063] (4) The use of the damping pad 26 can effectively reduce the influence of vibration.

[0064] It should be noted that the terms "center", "upper", "lower", "front", "back", "left", "right", "middle" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application.

[0065] In the description of the present application, it should be noted that unless otherwise explicitly specified and limited, the terms "connected", "connected" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0066] The above-described embodiments are only descriptions of the preferred embodiments of the present application, and do not limit the scope of the present application. Without departing from the design spirit of the present application, various modifications and improvements to the technical solutions of the present application made by those skilled in the art shall fall within the protection scope determined by the claims of the present application.

Claims

1. A recyclable lifting device, characterized in that: The system includes a lifting platform, a hinge, and a locking mechanism. The lifting platform includes an outer sleeve, within which a screw is rotatably mounted. The screw is arranged axially along the outer sleeve, and a nut is threaded onto the screw. A guide mechanism is provided between the nut and the outer sleeve, allowing the nut to slide axially along the outer sleeve via the guide mechanism. An inner sleeve is fixedly connected to the nut, located between the screw and the outer sleeve. The screw is driven to rotate by a power mechanism. The outer sleeve can be switched between a lifting state and a retracted state via the hinge, and can be held in the retracted state by the locking mechanism. The lower end of the outer sleeve is fixedly mounted on a box-type base. The lower end of the screw extends into the base, and a driven wheel is fixedly mounted on the lower end of the screw. A bevel gear commutator is fixedly mounted on the base, and the output shaft of the bevel gear commutator extends into the base. A driving wheel is fixedly mounted on the output shaft of the bevel gear commutator. A conveyor belt connects the driving wheel and the driven wheel. The power mechanism is a motor, and the motor is connected to the input shaft of the bevel gear commutator. The base is fixedly mounted on an L-shaped base plate, which includes a horizontal plate and a vertical plate fixedly connected. The base is fixedly mounted on the horizontal plate. The hinge is a hinge consisting of a first hinge plate, a second hinge plate, and a hinge shaft. The first and second hinge plates are rotatably connected via the hinge shaft. The first hinge plate is fixedly connected to the vertical plate. The hinge and the base are located on opposite sides of the vertical plate. When the first hinge plate rotates relative to the second hinge plate, the outer sleeve can switch between a lifting state and a retracted state. The locking component is a latch lock, which includes a latch head and a latch seat. The latch head is fixedly mounted on the top plate, and the latch seat has a clamping groove adapted to the latch head. An elastic clamping element is provided in the clamping groove. When the outer sleeve is in the retracted state, the latch head is located in the clamping groove of the latch seat and is clamped by the elastic clamping element. When the outer sleeve is in the lifted state, the latch head disengages from the clamping groove of the latch seat.

2. The recyclable lifting device according to claim 1, characterized in that: The guiding mechanism includes a groove and a slider. The groove is provided on the inner wall of the outer sleeve and arranged along the axial direction of the outer sleeve. The slider is fixed on the nut and is located inside the groove.

3. The recyclable lifting device according to claim 2, characterized in that: The upper end of the outer sleeve is fixedly installed with a first end cap, which is annular. The lower end of the inner sleeve is fixedly connected to a nut. The upper end of the inner sleeve passes through the central hole of the first end cap and extends to the outside of the first end cap. A sealing ring is provided between the first end cap and the inner sleeve, and the sealing ring is provided on the first end cap.

4. The recyclable lifting device according to claim 3, characterized in that: The upper end of the inner sleeve is fixedly installed with a second end cap, the second end cap is provided with a top plate, and a vibration damping pad is provided between the top plate and the second end cap.

5. The recyclable lifting device according to claim 4, characterized in that: The latch seat includes a mounting plate, on which two seat bodies are fixedly arranged at a distance from each other. The gap between the two seat bodies forms a clamping groove. Each seat body has a through hole parallel to the mounting plate. A third end cap is fixedly connected to the end of the through hole away from the clamping groove. A clamping ball is installed in the through hole. A spring is connected between the clamping ball and the third end cap. The two clamping balls abut against each other under the action of their respective connected springs. The abutting ends of the two clamping balls are located in the clamping groove. The two clamping balls and the two springs together constitute the elastic clamping member. A groove is provided on each of the opposite sides of the latch head. When the latch head is located in the clamping groove of the latch seat, the two clamping balls are located on the opposite sides of the latch head and clamp the latch head. The abutting ends of the two clamping balls are located in the two grooves of the latch head.

6. An omnidirectional AGV using the retractable lifting device according to any one of claims 1-5, characterized in that: The system includes a vehicle chassis, on which four retractable lifting devices are installed. The four retractable lifting devices form two retractable lifting device groups. Each retractable lifting device group includes two retractable lifting devices arranged opposite each other. The two retractable lifting device groups are respectively arranged on opposite sides of the vehicle chassis. The second hinge plate and the mounting plate of the collision lock seat of each retractable lifting device are fixed on the vehicle chassis.

7. The AGV omnidirectional vehicle according to claim 6, characterized in that: The two recyclable lifting device groups are designated as a first recyclable lifting device group and a second recyclable lifting device group. When the outer sleeve of the first retractable lifting device assembly changes from the lifting state to the retracted state, the outer sleeve of the first retractable lifting device assembly rotates towards the second retractable lifting device assembly. Similarly, when the outer sleeve of the second retractable lifting device assembly changes from the lifting state to the retracted state, the outer sleeve of the second retractable lifting device assembly rotates towards the first retractable lifting device assembly. When the outer sleeve of the first retractable lifting device group changes from the lifting state to the retracted state, the outer sleeve of the first retractable lifting device group rotates in a direction away from the second retractable lifting device group. When the outer sleeve of the second retractable lifting device group changes from the lifting state to the retracted state, the outer sleeve of the second retractable lifting device group rotates in a direction away from the first retractable lifting device group.

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