Driving and lifting assembly of feeder

Abstract

The invention relates to the technical field of feeders, in particular to a driving and lifting assembly of a feeder for lithium battery production, which comprises a support tray seat fixedly connected with a feeder body, and a driving wheel assembly capable of elastically lifting along the support tray seat, a lifting floating extrusion spring extending in the vertical direction abuts against the position between the supporting tray base and the driving wheel assembly, the control assembly is connected with the driving wheel assembly in the vertical direction and can ascend and descend together with the driving wheel assembly, and the control assembly is provided with a jacking rod which can ascend and descend and abut against the supporting tray base downwards to lift the driving wheel assembly. The use stability is high; the lifting effect is good.

Description

Technical Field

[0001] The present invention relates to the technical field of feeders, and in particular to a driving and lifting assembly of a feeder used in lithium battery production. Background Art

[0002] The existing lithium battery production industry requires the use of feeders. For example, sometimes, the coils of aluminum foil need to be lifted for transportation. There are many types of such equipment available, and many of them are patented products.

[0003] For example, the Chinese patent application number 202111206984.5 discloses a film cleaning and feeding device that is compatible with roll materials, sheet materials and bare materials, including a frame, on which a material box device, a material picking device, a tape winding mechanism and a material cleaning and transmission device are provided. The material box device is used for stacking sheet materials and bare materials, including a pallet lifting mechanism installed on the frame, on which a lifting pallet and a whole material baffle are installed. The material picking device is used for picking up and placing bare film materials and sheet materials. The material picking device is arranged above the material box device, and the material picking device includes left and right material picking cylinders, upper and lower material picking cylinders, material picking rotating cylinders and vacuum suction head devices. The tape winding mechanism is used for tearing and transmitting roll materials and sheet materials, including a tape unwinding shaft, a redirecting roller and a material receiving air shaft. The material cleaning and transmission device includes a transmission mechanism, a conveyor belt and a cleaning mechanism.

[0004] For example, the Chinese patent application number 202021143827.5 discloses a lifting and rotating device for the upper and lower rolls of materials of a coating machine, which relates to the field of material conveying technology. It includes a material cart, and a guide rail is vertically arranged on the material cart. The guide rail is slidably connected to a lifting platform, and a support plate is fixedly connected to the lifting platform. The support plate is rotatably connected to a rotating disk. A positioning guide mechanism is installed on the bottom surface of the rotating disk in four directions: front, back, left and right. The positioning guide mechanism includes a positioning plate fixedly connected to the rotating disk, and a support guide bearing connected to the positioning plate and used to slide against the support plate. A central shaft is fixedly connected to the bottom of the rotating disk, and the bottom end of the central shaft passes downward through the support plate and the lifting platform and is transmission-connected to a motor.

[0005] The aforementioned feeding equipment all have walking structures on their lower sides, such as some rollers or drive wheels. Among the structures involving the drive wheels, many are not very stable, the drive performance of the drive wheels is not good enough, and sometimes when the detailed positions need to be adjusted, it is more difficult for the drive wheels to stick to the ground. Summary of the Invention

[0006] The object of the present invention is to provide a driving and lifting assembly for a feeder which has high use stability and good lifting effect.

[0007] The above-mentioned object of the present invention is achieved through the following technical solutions: a driving and lifting assembly of a feeder, comprising a support tray seat fixedly connected to the feeder body, a driving wheel assembly that can be elastically lifted and lowered along the support tray seat, a lifting and lowering floating extrusion spring extending in the up and down directions between the support tray seat and the driving wheel assembly, and a control assembly connected to the driving wheel assembly up and down and capable of being lifted and lowered together, the control assembly having a lifting rod that can be lifted and lowered and presses downward against the support tray seat to lift the driving wheel assembly.

[0008] As a preferred embodiment of the present invention, the support tray seat includes a main support cylinder body in the form of a cylindrical cylinder and a circle of flange mounting plate fixed on the outer wall of the main support cylinder for fixing to the feeder body. A lifting channel hole is formed in the main support cylinder for lifting the driving wheel assembly. The driving wheel assembly includes a driving wheel mounting frame, a driving wheel installed and connected at the lower side of the driving wheel mounting frame, a steering shaft extending up and down fixed on the top of the driving wheel mounting frame, and a lifting frame arranged on the periphery of the steering shaft and capable of driving the driving wheel assembly and the control assembly to rise and fall. The lifting frame includes a lifting support plate, an upper shaft sleeve fixed on the upper surface of the lifting support plate and capable of passing through the lifting channel hole for lifting and lowering, and a lower shaft sleeve fixed on the lower surface of the lifting support plate, a central support hole is opened in the center of the lifting support plate, which passes through the upper and lower parts for the steering shaft to pass through, the lifting support plate is located at the lower side of the main support cylinder, and the lifting floating extrusion spring is supported between the main support cylinder body and the lifting support plate.

[0009] As a preferred embodiment of the present invention, the main support cylinder is provided with an upper spring guide groove which is recessed upward from the bottom surface for a part of the lifting floating extrusion spring to be inserted into and guided for abutment. The lifting support plate is provided with a lower spring guide groove which corresponds to the upper spring guide groove above and below and is recessed downward from the upper surface for a part of the lifting floating extrusion spring to be inserted into and guided for abutment.

[0010] As a preferred embodiment of the present invention, the upper and lower connecting spaces formed by the upper and lower corresponding spring guide grooves and the lower spring guide grooves are also equipped with a spring guide rod extending up and down and located in the inner ring of the lifting floating extrusion spring to provide guide support for the lifting floating extrusion spring.

[0011] As a preferred embodiment of the present invention, the main support cylinder is provided with a lifting guide avoidance groove at the top of the upper spring guide groove, which is connected with the upper spring guide groove and extends upward for the spring guide rod to enter upward; the lifting support plate is provided with a bottom limit support groove at the bottom of the lower spring guide groove, which is connected with the lower spring guide groove and extends downward for the bottom of the spring guide rod to be inserted downward and rest against after a rear limit.

[0012] As a preferred embodiment of the present invention, a downwardly extending reinforcing limit rod is fixed to the bottom of the spring guide rod, and the diameter of the reinforcing limit rod is smaller than the diameter of the spring guide rod. A reinforcing limit hole is provided on the lifting support plate at the bottom of the bottom limit support groove, which runs through the bottom and allows the reinforcing limit rod to pass downward. An outer wall support step groove is formed on the outer wall of the lower sleeve, which is connected to the reinforcing limit hole and supports the bottom part of the reinforcing limit rod and is recessed toward the center in the horizontal radial direction.

[0013] As a preferred embodiment of the present invention, there are multiple lifting and floating extrusion springs distributed in a circular array, the number of the upper spring guide grooves and the lower spring guide grooves are consistent with the number of lifting and floating extrusion springs and the two correspond one to one, the aperture of the inner ring of the upper sleeve is larger than the aperture of the central support hole, the aperture of the inner ring of the lower sleeve is larger than the aperture of the central support hole, the driving wheel assembly also includes a first bearing mounted on the bottom end of the steering shaft and a second bearing mounted on the top end of the steering shaft, the outer ring of the first bearing is mounted in the lower sleeve, the outer ring of the second bearing is mounted in the bottom position of the upper sleeve, and the lifting support plate is located between the second bearing and the first bearing.

[0014] As a preferred embodiment of the present invention, the control assembly also includes an operator that can control the lifting rod to descend and support the upper surface of the main support cylinder, an operating frame for mounting the operator, and a connecting shaft fixedly connected to the lower side of the operating frame, the connecting shaft is located on the upper side of the steering shaft and is fixedly connected to the steering shaft, the operating frame includes a bottom connecting plate fixedly connected to the connecting shaft, a left shaft support plate and a right shaft support plate fixed on the left and right sides of the upper surface of the bottom connecting plate and arranged at intervals on the left and right sides, the operator includes an operating shaft that passes through the left and right shaft support plates and extends left and right, the left end of the operating shaft is connected to and extends backward with a left driving lever arm, the right end of the operating shaft is connected to and extends backward with a right driving lever arm, and an operating handle rod is connected between the rear end parts of the left driving lever arm and the right driving lever arm. At least one of the left driving lever arm and the right driving lever arm is provided with an extrusion terminal for applying pressure downward to the lifting rod to lower the lifting rod.

[0015] As a preferred embodiment of the present invention, a support guide sleeve for raising and lowering the lifting rod is fixed on the left side of the left shaft support plate, and a support guide sleeve for raising and lowering the lifting rod is also fixed on the right side of the right shaft support plate, and the support guide sleeve forms a guide hole extending up and down for the lifting rod to pass through.

[0016] As the preferred of the present application, the guide hole is built-in with a back-up spring for the elastic lifting reset of the lifting rod, the lifting rod comprises a rod head and a rod body which are integrally connected, the horizontal transverse dimension of the rod head is larger than that of the rod body, the back-up spring is sleeved on the periphery of the rod body and abuts against the lower side of the rod head, and the support guide sleeve is integrally connected with a lower annular limiting stop portion at the bottom outlet position of the guide hole, the lower annular limiting stop portion is annular in shape and is used for allowing the lifting rod to pass through and the bottom of the back-up spring to be blocked.

[0017] The present application has the advantages of more stable and reliable structure, better driving force and shock absorption effect, elastic force on the whole operation part and driving wheel part, good damping performance, small damage to the transmission structure during driving, and low failure rate.

[0018] The roll feeding is more suitable during the production of lithium battery, the driving part can be conveniently adjusted to fine position of the machine, the driving wheel is lifted to reduce interference, and automatic walking and non-automatic walking can be switched at will.

[0019] The structure of the present application is also suitable for machines and equipment requiring driving wheel structure or other production fields, such as forklifts and the like. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 is a front side view of the three-dimensional mechanism schematic diagram of the driving lifting assembly in the initial state of the embodiment; Figure 2 is Figure 1 a front upper side view of the three-dimensional structure schematic diagram; Figure 3 is Figure 1 a front lower side view of the three-dimensional structure schematic diagram; Figure 4 is Figure 1 a rear side view of the three-dimensional structure schematic diagram; Figure 5 is Figure 1 a three-dimensional structure schematic diagram of the structure in the lifting state; Figure 6 is Figure 1 a three-dimensional structure schematic diagram of the driving wheel assembly part in the embodiment; Figure 7 is Figure 1 a three-dimensional structure schematic diagram of the operation frame part in the embodiment; Figure 8 is Figure 7 a three-dimensional structure schematic diagram of the upper side view; Figure 9 is Figure 7 a three-dimensional structure schematic diagram of the lower side view; Figure 10 is Figure 5Schematic diagram of the three-dimensional structure after the support tray seat in the structure is removed; Figure 11 yes Figure 10 Schematic diagram of the three-dimensional structure after the bushing in the structure is removed; Figure 12 yes Figure 11 Schematic diagram of the three-dimensional structure after the lifting frame in the structure is removed; Figure 13 yes Figure 12 A schematic diagram of the three-dimensional structure after the second bearing in the structure is removed; Figure 14 yes Figure 5 A schematic diagram of the three-dimensional structure of the support tray seat in the structure; Figure 15 yes Figure 14 Schematic diagram of the three-dimensional structure from the bottom perspective; Figure 16 yes Figure 5 A schematic diagram of the three-dimensional structure of the lifting frame in the structure; Figure 17 yes Figure 16 Schematic diagram of the three-dimensional structure from the bottom perspective; Figure 18 yes Figure 5 Schematic diagram of the three-dimensional structure after the jacking rod in the structure is separated outside the operating frame; Figure 19 yes Figure 5 Schematic diagram of the three-dimensional structure of the operating frame, support tray base and lifting frame in the upper and lower separated states; Figure 20 yes Figure 19 Schematic diagram of the three-dimensional structure from the bottom perspective; Figure 21 yes Figure 5 Schematic diagram of the three-dimensional structure after the lifting floating extrusion spring and the spring guide rod in the structure are separated from each other; Figure 22 yes Figure 1 A schematic diagram of the three-dimensional structure of the drive lift assembly after the steering wheel is assembled; Figure 23 yes Figure 22 Schematic diagram of the three-dimensional structure from the rear perspective. DETAILED DESCRIPTION

[0021] The present invention will be further described in detail below with reference to the accompanying drawings.

[0022] This specific embodiment is merely an explanation of the present invention and is not intended to limit the present invention. After reading this specification, those skilled in the art may make non-creative modifications to this embodiment as needed. However, as long as such modifications are within the scope of the claims of the present invention, they are protected by patent law.

[0023] Examples, such as Figure 1-23 As shown, a driving and lifting assembly of a feeder includes a support tray seat 1 for fixedly connected to the feeder body, a driving wheel assembly that can be elastically lifted and lowered along the support tray seat 1, a lifting and lowering floating extrusion spring 2 extending in the up and down directions between the support tray seat 1 and the driving wheel assembly, and a control assembly that is connected to the driving wheel assembly up and down and can be lifted and lowered together, and the control assembly has a lifting rod 3 that can be lifted and lowered and presses downward against the support tray seat 1 to lift the driving wheel assembly. Through the elastic support of the lifting floating extrusion spring 2, the driving wheel assembly can always be under the action of elastic force. Initially, the driving wheel assembly is in the lowest position, and the driving wheel of the driving wheel assembly is in a ground-touching state. When the driving wheel needs to be lifted, the control assembly is operated to lift the driving wheel assembly off the ground, so that the feeder enters an unpowered state. Of course, there will be unpowered rollers or universal wheels and other walking support structures under the feeder. The driving wheel touching the ground is an automatic walking state that does not require external forces such as manpower. The driving wheel is generally a powered wheel of an electric wheel, and when the driving wheel is raised, it cannot walk automatically, but at this time, adjusting the position and direction is more labor-saving and convenient for precise alignment. The initial state, which we can call the normal state, is the state where the drive wheel is touching the ground, which is also the general state of the feeder. The lifting state is an extraordinary state of the feeder and needs to be controlled. Here, we use the lifting rod 3 to push down on the support tray seat 1 to form a reaction force, so that the drive wheel assembly and the control assembly are lifted. Initially, the lifting rod 3 is above the support tray seat 1 and there is an upper and lower gap. When lifting, the lifting rod 3 pushes down on the support tray seat 1 to exert force to perform the lifting operation. During the lifting process, the lifting floating extrusion spring 2 will be further compressed, so that the drive wheel assembly has room to move upward, because the support tray seat 1 is fixed to the fuselage and will not move. Of course, by controlling the lifting rod 3 to rise again, the drive wheel assembly will return to its initial state.

[0024] The above-mentioned solution has the following specific implementation details: The support tray base 1 comprises a cylindrical main support body 11 and a flange mounting plate 12 fixed to the outer wall of the main support body 11 for securing to the feeder body. The flange mounting plate 12 can be integrally formed and fixed to the outer wall of the main support body 11. The flange mounting plate 12 has flange holes extending vertically through it and is secured to the feeder body via bolts and nuts. This embodiment can be secured using existing methods such as integral molding, welding, or threaded bolts and nuts. The flange mounting plate 12 is located near the center of the outer wall of the main support body 11. The support tray base 1 can be made of steel or hard plastic. Furthermore, a lifting channel hole 110 is formed within the main support body 11 for raising and lowering the drive wheel assembly. The lifting channel hole 110 extends vertically through the main support body 11, is coaxial with the main support body 11, and is axially oriented in the vertical direction.

[0025] The drive wheel assembly includes a drive wheel mounting frame 41, a drive wheel 42 mounted and connected to the underside of the drive wheel mounting frame 41, a steering shaft 43 extending vertically and fixed to the top of the drive wheel mounting frame 41, and a lifting frame 5 disposed around the steering shaft 43 and capable of driving the drive wheel assembly and control assembly up and down. The drive wheel can be an existing electric drive wheel, and the drive wheel mounting frame 41 can also be a conventional frame. The steering shaft 43 is used to steer the entire drive wheel assembly. The lifting frame 5 is particularly important here, serving as a link between the upper and lower parts, driving the drive wheel assembly and control assembly up and down, and providing elastic support for the support tray base 1. Specifically, the lifting frame 5 includes a lifting support plate 51, the upper shaft sleeve 52 fixed on the upper surface of the lifting support plate 51 and capable of passing through the lifting channel hole 110 for lifting and lowering, and the lower shaft sleeve 53 fixed on the lower surface of the lifting support plate 51. A central support hole 510 is opened in the center of the lifting support plate 51 for the steering shaft 43 to pass through. The lifting support plate 51 is located on the lower side of the main support cylinder 11. The lifting floating extrusion spring 2 is supported between the main support cylinder 11 and the lifting support plate 51. The lifting support plate 51 is also an annular plate and its axis is consistent with the main support cylinder 11. The axis of the upper shaft sleeve 52 and the lower shaft sleeve 53 must also be consistent with the axis of the lower shaft sleeve 53. The upper shaft sleeve 52 and the lower shaft sleeve 53 can be integrally formed and connected to the lifting support plate 51, and the material can also be hard materials such as metal or plastic. Initially, a gap is maintained between the main support cylinder 11 and the lifting support plate 51, allowing the lifting support plate 51 to rise. At the same time, both of them press the lifting floating extrusion spring 2 upward. As the lifting rod 3 moves downward to press against the upper surface of the main support cylinder 11, generating an upward reaction force, the control assembly continues to apply downward pressure, thereby lifting itself.

[0026] Furthermore, the main support cylinder 11 is provided with an upper spring guide groove 21 which is recessed upward from the bottom surface for a portion of the lifting floating extrusion spring 2 to be inserted upward for abutment and guidance. The lifting support plate 51 is provided with a lower spring guide groove 22 which corresponds to the upper spring guide groove 21 and is recessed downward from the upper surface for a portion of the lifting floating extrusion spring 2 to be inserted downward for abutment and guidance. The upper spring guide groove 21 and the lower spring guide groove 22 are both cylindrical groove bodies, and a lifting guide groove is formed between the upper spring guide groove 21 and the lower spring guide groove 22. The cylindrical connecting space in which the floating extrusion spring 2 is placed can be extended and retracted up and down because the lower spring guide groove 22 can be lifted and lowered. The upper spring guide groove 21 is facing downward and the lower spring guide groove 22 is facing upward. The diameters of the upper spring guide groove 21 and the lower spring guide groove 22 are consistent with the outer diameter of the lifting floating extrusion spring 2. Of course, the actual diameters of the upper spring guide groove 21 and the lower spring guide groove 22 can be slightly larger than the outer diameter of the lifting floating extrusion spring 2, which facilitates the assembly of the lifting floating extrusion spring 2. Moreover, the aforementioned upper and lower connecting space formed by the upper spring guide groove 21 and the lower spring guide groove 22 corresponding to each other is also equipped with a spring guide rod 23 extending up and down and located in the inner circle of the lifting floating extrusion spring 2 to provide guidance and support for the lifting floating extrusion spring 2, that is, the diameter of the spring guide rod 23 is less than or equal to the inner diameter of the lifting floating extrusion spring 2, so that it can be located in the area surrounded by the lifting floating extrusion spring 2. The function of the spring guide rod 23 makes the lifting floating extrusion spring 2 straighter whether it is compressed or restored, thereby ensuring the stability of the spring structure. The spring guide rod 23 can also be a metal part or a plastic part. Of course, the spring guide rod 23 is also cylindrical.

[0027] Furthermore, a lifting guide avoidance groove 210 is provided at the top of the upper spring guide groove 21 on the main support cylinder 11, which is connected to the upper spring guide groove 21 and extends upward to allow the spring guide rod 23 to enter upward. A bottom limit support groove 220 is provided at the bottom of the lower spring guide groove 22 on the lifting support plate 51, which is connected to the lower spring guide groove 22 and extends downward to allow the bottom of the spring guide rod 23 to be inserted downward and then limited and abutted. In this way, when the lifting floating extrusion spring 2 structure is better guided and limited, it can not only be compressed and restored up and down, so that the lifting support plate 51 can be lifted and lowered, but also the spring guide rod 23 will have space for it to lift and lower during the lifting process, that is, the lifting guide avoidance groove 210. Of course, the bottom limit support groove 220 is for the bottom of the spring guide rod 23 to be placed in the support and limit position. The bottom limit support groove 220 and the lifting guide avoidance groove 210 are also preferably cylindrical grooves and the diameter is as consistent as possible with the diameter of the spring guide rod 23 or slightly larger.

[0028] Preferably, a downwardly extending reinforcing limit rod 230 is fixed to the bottom of the spring guide rod 23. The axes of the spring guide rod 23 and the reinforcing limit rod 230 are required to be aligned as much as possible to ensure the stability and balance of the structural force. The diameter of the reinforcing limit rod 230 is smaller than that of the spring guide rod 23. A reinforcing limit hole 221 is provided at the bottom of the bottom limit support groove 220 on the lifting support plate 51, extending vertically through the bottom of the bottom limit support groove 220, through which the reinforcing limit rod 230 can pass downward. The diameter of the reinforcing limit hole 221 is required to be aligned as much as possible with the diameter of the reinforcing limit rod 230, thereby achieving a better limit support effect and a more solid and reliable structure. Furthermore, an outer wall support step groove 222 is formed on the outer wall of the lower sleeve 53, which is connected to the reinforcing limit hole 221 and supports the bottom part of the reinforcing limit rod 230 and is recessed toward the center in the horizontal radial direction. This design saves the length of the spring guide rod 23, and the upper and lower groove body dimensions of the bottom limit support groove 220 do not need to be very large, and the thickness of the lifting support plate 51 does not need to be very large. Instead, the lower sleeve 53 can be used to extend the limiting structure of the spring guide rod 23, and the accommodating space of the reinforcing limit rod 230 can also exist in a part of the lower sleeve 53, so that the structure can be more compact. Moreover, the reinforcing limit rod 230 can be exposed on the lower side of the lifting support plate 51, so that the supporting state of the bottom part of the reinforcing limit rod 230 can be observed, and the safety is also higher. Because the outer wall supporting step groove 222 is on the outer wall of the lower sleeve 53, it is set as a semi-cylindrical step groove or a cylindrical groove smaller than the semi-cylindrical shape, which can only provide partial embedding for the bottom part of the reinforcing limit rod 230, and the other part is exposed and can be observed.

[0029] Preferably, the lifting floating extrusion springs 2 have multiple ones and are distributed in a circular array. The number of the upper spring guide grooves 21 and the lower spring guide grooves 22 are consistent with the number of the lifting floating extrusion springs 2 and the two correspond one to one. The aforementioned structures are basically circular structures such as discs or cylinders, especially the lifting support plate 51 and the main support cylinder 11. The lifting floating extrusion springs 2 are also distributed in a circular array on the lifting support plate 51 and the main support cylinder 11. This will provide better support and stability, more balanced force, and better use effect.

[0030] Furthermore, the aperture of the inner ring of the upper sleeve 52 is larger than the aperture of the central support hole 510, and the aperture of the inner ring of the lower sleeve 53 is larger than the aperture of the central support hole 510. The driving wheel assembly also includes a first bearing 431 mounted on the bottom end of the steering shaft 43 and a second bearing 432 mounted on the top end of the steering shaft 43. The outer ring of the first bearing 431 is mounted in the lower sleeve 53, and the outer ring of the second bearing 432 is mounted at the bottom of the upper sleeve 52. The lifting support plate 51 is located between the second bearing 432 and the first bearing 431. Through the above design, the second bearing 432 and the first bearing 431 clamp the lifting support plate 51 in the middle of the upper and lower parts. On the one hand, the bearings facilitate rotation and steering. On the other hand, they form a whole with the lifting support plate 51 and can drive lifting and lowering together. The first bearing 431 is limited by a lifting support plate 51 on the upper side and a corresponding structural limit on the lower side. We can form a first annular step 61 on the lower side of the first bearing 431 on the steering shaft 43 to limit the position, so that the first bearing 431 will be locked up and down. The second bearing 432 is limited by a lifting support plate 51 on the lower side, and the corresponding structural limit on the upper side can be a second annular step structure formed on the steering shaft 43 on the upper side of the second bearing 432, or a chamfered portion 62 formed at the bottom of the upper connecting shaft 31, which will be mentioned later and has a horizontal dimension greater than the inner ring diameter of the second bearing 432, to limit the upper side of the second bearing 432. The connecting shaft 31 is used to fix the steering shaft 43. Of course, other limiting structures can also be used to lock the second bearing 432 up and down for lifting and lowering, which is also convenient for steering.

[0031] Preferably, the control assembly also includes an operator that can control the jacking rod 3 to descend and support the upper surface of the main support cylinder 11, an operating frame for the operator to be installed and connected, and a connecting shaft 31 fixedly connected to the lower side of the operating frame. The connecting shaft 31 is located on the upper side of the steering shaft 43 and is fixedly connected to the steering shaft 43. The outer sleeve of the connecting shaft 31 is provided with a third bearing 433. The connecting shaft 31 is located on the upper side of the third bearing 433 to form a third annular step 63 to limit the upper side of the inner ring of the third bearing 433, and the upper sleeve 52 is close to the top. An upper annular limiting step groove 64 is formed for the outer ring of the third bearing 433 to be embedded downward and pressed against for limiting. In this way, the lower side of the third bearing 433 is also limited. The third annular step portion 63 and the upper annular limiting step groove 64 lock the third bearing up and down. Of course, the connecting shaft 31 can also be located on the lower side of the third bearing 433 to form a limiting step and other structures to lock the third bearing 433. In this way, the third bearing 433 can also rise and fall with the connecting shaft 31, and the third annular step portion 63 is pressed as much as possible on the inner ring of the third bearing 433 to ensure the stability of the steering force.

[0032] What is more important is that the operating frame includes a bottom connecting plate 321 fixedly connected to the top of the connecting shaft 31, a left shaft support plate 322 and a right shaft support plate 323 fixed on the left and right sides of the upper surface of the bottom connecting plate 321 and arranged at intervals on the left and right sides, the connecting shaft 31, the bottom connecting plate 321, the left shaft support plate 322 and the right shaft support plate 323 can be connected and fixed by an integrated fixed connection method, and metal parts or plastic parts can be used. The plate surfaces of the left shaft support plate 322 and the right shaft support plate 323 are in the left and right directions, the bottom connecting plate 321 is horizontal, the connecting shaft 31 extends up and down, and the bottom connecting plate 321, the left shaft support plate 322 and the right shaft support plate 323 are U-shaped structures. In order to achieve the fixation of the connecting shaft 31 and the steering shaft 43, it can be achieved by welding, or other methods. Here, a threaded connection method is recommended. We can open vertical threaded holes 65 that are connected and correspond to each other on the bottom connecting plate 321, the connecting shaft 31 and the steering shaft 43. There can be multiple vertical threaded holes 65, and the upper and lower longer bolts can be screwed into the vertical threaded holes 65 of the three. This makes disassembly convenient and the fixing force is better.

[0033] The operator includes an operating shaft 331 that is passed through the left shaft support plate 322 and the right shaft support plate 323 and extends left and right, a left driving lever arm 332 that is connected to the left end of the operating shaft 331 and extends backward, a right driving lever arm 333 that is connected to the right end of the operating shaft 331 and extends backward, and an operating handle rod 334 that is connected between the rear ends of the left driving lever arm 332 and the right driving lever arm 333. At least one of the left driving lever arm 332 and the right driving lever arm 333 is provided with a The extrusion terminal 335, which applies downward pressure to the lifting rod 3 and causes it to descend, is exemplified by the left driving lever arm 332. The front end of the left driving lever arm 332 forms a slightly rounded rotating portion 3350, which is connected to the left end of the operating shaft 331. The extrusion terminal 335 is a protrusion protruding from the outer periphery of the rotating portion 3350, preferably in the shape of an arc. While the outer periphery of the rotating portion 3350 does not reach the top of the lifting rod 3, the extrusion terminal 335, when pressed downward by the left driving lever arm 332, abuts against the top of the lifting rod 3 and causes it to descend. The extrusion terminal 335 is initially positioned below and behind the rotating portion 3350. Multiple extrusion terminals 335 can be provided, and their protrusion can gradually increase from front to back, allowing the lifting height of the drive wheel assembly to be adjusted in multiple levels. This utilizes the difference in distance from the axis of the operating shaft 331 to achieve both non-contact and contact, as well as downward movement. In fact, the rotating portion 3350 and the extruded terminal 335 form a cam structure, and the radially larger protruding portion of the cam rotates and presses against the top of the lifting rod 3 to lift the entire drive wheel. If a lifting structure is set at the right drive lever arm 333, refer to the left side.

[0034] Furthermore, a support guide sleeve 301 for raising and lowering the jacking rod 3 is fixed to the left side of the left shaft support plate 322. A support guide sleeve 301 for raising and lowering the jacking rod 3 is also fixed to the right side of the right shaft support plate 323. The support guide sleeve 301 forms a vertically extending guide hole 3011 for the jacking rod 3 to pass through. In other words, jacking rods 3 are provided on both the left and right sides, which improves the starting effect and the effects of force and stability. The jacking rod 3 extends downward from the guide hole 3011 to interact with the upper surface of the main support cylinder 11.

[0035] Furthermore, the guide hole 3011 houses a return spring 302 for elastically raising and returning the lifting rod 3. The lifting rod 3 comprises a head 3a and a shaft 3b integrally connected above and below. The horizontal dimension of the head 3a is greater than that of the shaft 3b. Both the head 3a and the shaft 3b can be cylindrical and have the same axis. The diameter of the head 3a is larger than that of the shaft 3b. The return spring 302 can be sleeved around the shaft 3b and abut against the underside of the head 3a. The support guide sleeve 301 is integrally connected to a lower annular stopper 303 at the bottom exit of the guide hole 3011, allowing the lifting rod 3 to pass through while the return spring 302 is blocked from the bottom. This allows the return spring 302 to bear force from above, and when the force applied to the lifting rod 3 from above is removed, the lifting rod 3 can be reset. The center of the lower annular position limiting blocking portion 303 is a through hole for the shaft 3b of the lifting rod 3 to pass downwards. The bottom of the shaft 3b can be covered with a plastic foot pad to prevent slipping and mute the effect.

[0036] The entire operation process is briefly described here. Initially, the driving wheel is close to the ground, and there is an elastic force of the lifting floating extrusion spring 2. The bottom of the jacking rod 3 is spaced apart from the upper surface of the main support cylinder 11. There is an elastic support of the lifting floating extrusion spring 2 between the lifting floating extrusion spring 2 and the lifting support plate 51, and there is also an upper and lower spacing space. When lifting is required, the control operating handle rod 334 is pressed downward, and the lever force of the left driving lever arm 332 and the right driving lever arm 333 is rotated to make the rotating part 3350 rotate forward clockwise, then the extrusion terminal 335 gradually contacts the jacking rod 3 more closely from the initial state of not contacting the jacking rod 3 at the rear, and as the radial size increases, the extrusion terminal 335 causes the jacking rod 3 to descend, so that the top of the jacking rod 3 contacts the upper surface of the main support cylinder 11, while the main support cylinder 11 is fixed. As the larger radial size part of the extrusion terminal 335 contacts the jacking rod 3, force is applied downward, thereby forming The reaction force causes the lifting floating extrusion spring 2 to be further compressed. According to the aforementioned structural design, the compression of the lifting floating extrusion spring 2 can offset the further force applied by the extrusion terminal 335. At the same time, the lifting support plate 51 will be lifted, that is, the lifting frame 5 will be lifted. The aforementioned linkage structural design based on the driving wheel assembly and the control assembly causes both parts to be lifted, so that the driving wheel is lifted and off the ground, and the extrusion terminal 335 will be stuck in the upper part of the support guide sleeve 301 when there is no external force, and will be in a stable state. If it is necessary to reset, just lift the operating handle rod 334 upwards, the extrusion terminal 335 will leave the support guide sleeve 301, and the lifting rod 3 will move up. The aforementioned reverse force disappears, the lifting floating extrusion spring 2 will open again, the driving wheel assembly and the control assembly will descend, and the driving wheel will be close to the ground. The upward movement of the lifting rod 3 is reset by the rebound spring 302.

[0037] This overall lifting assembly design improves driving stability and steering reliability. It also features vibration reduction, is less prone to tipping, and has a low failure rate. Furthermore, the drive section can be raised to adapt to different operating conditions. This allows for greater lifting ranges and improved controllability. Furthermore, it provides more comprehensive considerations for monitoring and maintenance.

[0038] In addition, to better apply force, a pressing roller 7 capable of contacting the extrusion terminal 335 is built into the top of the jacking rod 3. A groove is provided at the top of the jacking rod 3 for the pressing roller 7 to be installed. The pressing roller 7 is mounted in the groove via an axle. In this way, the extrusion terminal 335 and the rotatable pressing roller 7 reduce friction and wear, and the force applied during operation is also less laborious. In addition, a cylindrical bushing 8 capable of reducing friction is provided within the main support cylinder 11, that is, it is provided within the lifting channel hole 110. The inner side of the bushing 8 is sleeved on the outer periphery of the upper sleeve 52. In this way, the friction resistance of the upper sleeve 52 during lifting is reduced and the assembly can be more tightly assembled. The upper sleeve 52 rises and falls inside the bushing 8, and they are as close to each other as possible. The bushing 8 is on the upper side of the lifting support plate 51, and the upper sleeve 52 extends out of the lifting channel hole 110, and the main support cylinder 11 is located at the upper exit of the lifting channel hole 110 to form an upper annular limit blocking part 80. The upper annular limit blocking part 80 blocks the bushing 8 on the upper side. The center of the upper annular limit blocking part 80 has an entry and exit hole that passes through the upper and lower parts. The size of the entry and exit hole is consistent with the outer diameter of the upper sleeve 52 and is used for the upper sleeve 52 to extend and lift upward, that is, the upper annular limit blocking part 80 only blocks the bushing 8 and allows the upper sleeve 52 to pass.

[0039] The drive lift assembly of this embodiment can be connected to the steering wheel assembly of the feeder. The steering wheel cover f of the steering wheel assembly can be mounted on the left and right axle support plates 322 and 323 via a rotating shaft. An angle-adjustable adjustment rod f1 can be connected between the rear side of the steering wheel cover f and the bottom connecting plate 321. The adjustment rod f1 is a pneumatic or electric rod, with its ends hingedly connected to the steering wheel cover f and the bottom connecting plate 321, respectively. A limit safety rod f2 can also be installed between the left and right axle support plates 322 and 323 to prevent the steering wheel assembly from tilting forward excessively.

[0040] The above description is merely a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any person skilled in the art can easily conceive of various equivalent modifications or substitutions within the technical scope disclosed in the present invention, and such modifications or substitutions are intended to be within the scope of protection of the present invention. Therefore, the scope of protection of the present invention shall be subject to the scope of protection of the claims.

Claims

1. A driving and lifting assembly of a feeder, characterized in that: The invention comprises a support tray seat (1) for being fixedly connected to a feeder body, a driving wheel assembly capable of elastically rising and falling along the support tray seat (1), a lifting floating extrusion spring (2) extending in an up-down direction between the support tray seat (1) and the driving wheel assembly, and a control assembly connected to the driving wheel assembly up and down and capable of rising and falling together, the control assembly having a lifting rod (3) capable of rising and falling and pressing downward against the support tray seat (1) to lift the driving wheel assembly.

2. The driving and lifting assembly of a feeder according to claim 1, characterized in that: The support tray seat (1) comprises a main support cylinder (11) in the shape of a cylindrical cylinder and a flange mounting plate (12) fixed on the outer wall of the main support cylinder (11) for fixing and connecting with the feeder body. A lifting channel hole (110) for lifting the driving wheel assembly is formed in the main support cylinder (11). The driving wheel assembly comprises a driving wheel mounting frame (41), a driving wheel (42) mounted and connected to the lower side of the driving wheel mounting frame (41), a steering shaft (43) extending upward and downward fixed on the top of the driving wheel mounting frame (41), and a steering shaft (43) arranged on the periphery of the steering shaft (43) and capable of driving the driving wheel assembly and the control assembly to lift. The lifting frame (5) is provided with a lifting support plate (51), the lifting support plate (51) comprising an upper shaft sleeve (52) fixed on the upper surface of the lifting support plate (51) and capable of passing through the lifting channel hole (110) for lifting, and a lower shaft sleeve (53) fixed on the lower surface of the lifting support plate (51), the lifting support plate (51) having a central support hole (510) extending vertically through the center thereof for the steering shaft (43) to pass through, the lifting support plate (51) being located on the lower side of the main supporting cylinder (11), and the lifting floating extrusion spring (2) being supported between the main supporting cylinder (11) and the lifting support plate (51).

3. The driving and lifting assembly of a feeder according to claim 2, characterized in that: The main support cylinder (11) is provided with an upper spring guide groove (21) which is recessed upward from the bottom surface for a portion of the lifting floating extrusion spring (2) to be inserted upward for abutment and guidance. The lifting support plate (51) is provided with a lower spring guide groove (22) which corresponds to the upper spring guide groove (21) above and below and is recessed downward from the upper surface for a portion of the lifting floating extrusion spring (2) to be inserted downward for abutment and guidance.

4. The driving and lifting assembly of a feeder according to claim 3, characterized in that: The upper and lower communicating spaces formed by the upper spring guide grooves (21) and the lower spring guide grooves (22) corresponding to each other are also equipped with a spring guide rod (23) extending up and down and located in the inner ring of the lifting floating extrusion spring (2) to provide guidance and support for the lifting floating extrusion spring (2).

5. The driving and lifting assembly of a feeder according to claim 4, characterized in that: A lifting guide avoidance groove (210) is provided on the main support cylinder (11) at the top of the upper spring guide groove (21), which is connected to the upper spring guide groove (21) and extends upward for the spring guide rod (23) to enter upward. A bottom limit support groove (220) is provided on the lifting support plate (51) at the bottom of the lower spring guide groove (22), which is connected to the lower spring guide groove (22) and extends downward for the bottom of the spring guide rod (23) to be inserted downward and then abutted against.

6. The driving and lifting assembly of a feeder according to claim 5, characterized in that: A downwardly extending reinforcing limit rod (230) is fixed to the bottom of the spring guide rod (23), and the diameter of the reinforcing limit rod (230) is smaller than the diameter of the spring guide rod (23). A reinforcing limit hole (221) is provided on the lifting support plate (51) at the bottom of the bottom limit support groove (220) so that the reinforcing limit rod (230) can pass through downward. An outer wall support step groove (222) is formed on the outer wall of the lower shaft sleeve (53), which is connected to the reinforcing limit hole (221) and supports the bottom part of the reinforcing limit rod (230) and is recessed toward the center in the horizontal radial direction.

7. The driving and lifting assembly of a feeder according to claim 4, characterized in that: The lifting floating extrusion spring (2) has a plurality of springs and is distributed in a circular array. The number of the upper spring guide groove (21) and the lower spring guide groove (22) is consistent with the number of the lifting floating extrusion spring (2) and the two correspond to each other. The aperture of the inner ring of the upper sleeve (52) is larger than the aperture of the central support hole (510), and the aperture of the inner ring of the lower sleeve (53) is larger than the aperture of the central support hole (510). The driving wheel assembly also includes a first bearing (431) mounted on the bottom end of the steering shaft (43) and a second bearing (432) mounted on the top end of the steering shaft (43). The outer ring of the first bearing (431) is mounted in the lower sleeve (53), and the outer ring of the second bearing (432) is mounted in the bottom position of the upper sleeve (52). The lifting support plate (51) is located between the second bearing (432) and the first bearing (431).

8. The driving and lifting assembly of a feeder according to claim 4, characterized in that: The control assembly further comprises an operator capable of controlling the jacking rod (3) to descend and support the upper surface of the main support cylinder (11), an operating frame for mounting and connecting the operator, and a connecting shaft (31) fixedly connected to the lower side of the operating frame, wherein the connecting shaft (31) is located on the upper side of the steering shaft (43) and is fixedly connected to the steering shaft (43), the operating frame comprises a bottom connecting plate (321) fixedly connected to the connecting shaft (31), a left shaft support plate (322) and a right shaft support plate (323) fixed on the left and right sides of the upper surface of the bottom connecting plate (321) and spaced apart from each other, the operator comprises a connecting rod (321) passing through the left shaft support plate (322) and an operating shaft (331) extending left and right on the right shaft support plate (323), the left end of the operating shaft (331) is connected to a left driving lever arm (332) extending backward, the right end of the operating shaft (331) is connected to a right driving lever arm (333) extending backward, and an operating handle rod (334) is connected between the rear ends of the left driving lever arm (332) and the right driving lever arm (333), at least one of the left driving lever arm (332) and the right driving lever arm (333) is provided with an extrusion terminal (335) for applying downward pressure to the lifting rod (3) to lower the lifting rod (3).

9. The driving and lifting assembly of a feeder according to claim 8, characterized in that: A support guide sleeve (301) for raising and lowering the jacking rod (3) is fixed on the left side of the left shaft support plate (322), and a support guide sleeve (301) for raising and lowering the jacking rod (3) is also fixed on the right side of the right shaft support plate (323). The support guide sleeve (301) forms a guide hole (3011) extending upward and downward for the jacking rod (3) to pass through.

10. The driving and lifting assembly of a feeder according to claim 9, characterized in that: The guide hole (3011) is equipped with a return spring (302) for elastically rising and returning the lifting rod (3). The lifting rod (3) comprises a rod head (3a) and a rod body (3b) integrally connected to each other. The horizontal transverse dimension of the rod head (3a) is larger than that of the rod body (3b). The return spring (302) is sleeved on the outer periphery of the rod body (3b) and abuts against the lower side of the rod head (3a). The support guide sleeve (301) is located at the bottom exit of the guide hole (3011) and is integrally connected with a lower annular limiting blocking portion (303) in a ring shape, through which the lifting rod (3) can pass and against which the bottom of the return spring (302) can be blocked.

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