A lift with an electrically actuated clutch structure and a working method thereof

Abstract

The present invention discloses an elevator with an electrically actuated clutch structure and a working method thereof. The elevator includes a base, a lifting plate, a clutch drive mechanism and a tray. The lifting plate is slidably connected to the base. A tray is fixed to the top of the lifting plate. A vertically arranged rack is fixed to the lifting plate. The clutch drive mechanism is installed in the middle of the base. The clutch drive mechanism includes a mounting frame, a drive module, a locking module and a voltage generator. The mounting frame is fixed to the base. The drive module includes a first clutch transmission assembly, a second clutch transmission assembly, a reverse transmission assembly and a motor; the locking module includes a third clutch transmission assembly. The present invention utilizes the on-off control of two sets of clutches of the reverse transmission of the input shaft to achieve the lifting control of the elevator, and the on-off control of the third set of clutches to achieve the locking of the elevator at any position; the lifting and locking control of the elevator can be achieved when the motor continues to rotate at a constant speed.

Description

Technical Field

[0001] The present invention belongs to a power drive mechanism, and in particular relates to a lifter with an electrically actuated clutch structure and a working method thereof. Background Art

[0002] With the development of science and technology, more and more power-assisted mechanisms are being applied in various fields to assist humans in completing various simple, complex, and arduous tasks. Elevators can transport goods vertically to a designated location and are widely used to transport goods between height differences on production lines. Traditional motor-driven lifting mechanisms have advantages such as smooth lifting; however, elevators often need to stay in a certain position for a period of time to facilitate workers to pick up or place items; however, the DC motors or AC motors used to drive elevators are mostly difficult to achieve stable self-locking. In addition, elevators need to perform repeated lifting and lowering movements, which requires the motor to be frequently started, stopped, or reversed; and frequent starting, stopping, or reversing can easily cause the motor to overheat, shortening its life.

[0003] To address these issues, a clutch can be introduced to reduce motor starting and stopping. Traditional friction clutches offer smooth engagement and disengagement, compact structure, lightweight construction, simple equipment, and low cost. However, these clutches can cause metal wear and heat generation during engagement and disengagement. Traditional fluid clutches generally require an oil supply and place high demands on sealing. Summary of the Invention

[0004] The object of the present invention is to provide a lift with an electrically actuated clutch structure and a working method thereof.

[0005] The present invention provides an elevator with an electrically actuated clutch structure, comprising a base, a lifting plate, a clutch drive mechanism, and a tray. The lifting plate is slidably connected to the base. A tray is fixed to the top of the lifting plate. A vertically arranged rack is fixed to the lifting plate. The clutch drive mechanism is mounted in the middle of the base. The clutch drive mechanism comprises a mounting frame, a drive module, a locking module, and a voltage generating device. The mounting frame is fixed to the base. The drive module comprises a first clutch transmission assembly, a second clutch transmission assembly, a reverse transmission assembly, and a motor; the locking module comprises a third clutch transmission assembly.

[0006] The first, second, and third clutch transmission assemblies have identical structures, each including a first brush, a clutch, a second brush, and an outer ring gear. The voltage generator is mounted on a mounting bracket. The first and second brushes on the first, second, and third clutch transmission assemblies are connected to the voltage generator. The first and second brushes in the first, second, and third clutch transmission assemblies can be independently controlled to switch on and off.

[0007] The clutch comprises an input shaft, an external connecting cylinder, and a clutch unit. Multiple clutch units are coaxially arranged in sequence. The input shaft coaxially passes through each clutch unit. The clutch unit comprises an input disc, two electrodeformable gel sheets, and two output discs. Opposing sides of the two electrodeformable gel sheets contact opposite sides of the input disc. Opposing sides of the two electrodeformable gel sheets are secured to opposing sides of the two output discs. The external connecting cylinder is sleeved onto the outside of each clutch unit.

[0008] Each input disc is electrically connected to and fixed to the input shaft. Each input disc does not contact the external connection tube. Each output disc is electrically connected to and fixed to the external connection tube. Each output disc does not contact the input shaft. When a voltage is applied to both sides of the electrodeformable gel sheet, the corresponding input disc and output disc are connected together.

[0009] The outer ring gear is fixed to the outer connecting cylinder and meshes with the rack. The outer connecting cylinder, input disc, output disc, and input shaft are all made of conductive materials. The first brush contacts the outer connecting cylinder; the second brush contacts the input shaft.

[0010] The input shafts of the first and second clutch transmission assemblies are both rotatably connected to the mounting bracket. The input shaft of the third clutch transmission assembly is fixed to the mounting bracket. The input shafts of the first and second clutch transmission assemblies are reversely connected via a reverse transmission assembly. The input shaft of the first or second clutch transmission assembly is rotationally driven by a motor.

[0011] Preferably, the input shaft and the mounting bracket are isolated by insulating material; the outer connecting cylinder and the outer gear ring are isolated by insulating material; and the outer connecting cylinder and the input shaft are isolated by insulating material.

[0012] Preferably, the electrodeformable gel sheet is composed of dielectric polymer particles and gel. The dielectric polymer particles are distributed within and on the surface of the gel. When no voltage is applied across the electrodeformable gel sheet, the surface of the electrodeformable gel sheet facing the input disc is covered with dielectric polymer particles. The dielectric polymer particles on the surface contact the input disc, while the gel does not, resulting in a disengaged clutch. When voltage is applied across the electrodeformable gel sheet, the different dielectric polymer particles generate an attractive force, squeezing the gel and deforming it, bringing it into contact with the input disc, and engaging the clutch.

[0013] Preferably, the base is provided with a vertically arranged guide groove in a trapezoidal shape. Axles are disposed within the guide groove and are arranged in a vertically spaced sequence. Rollers are mounted on the axles and are arranged in a vertically spaced sequence. A vertically arranged lifting plate is slidably connected to the guide groove. The inner side of the lifting plate contacts the rollers.

[0014] Preferably, a rubber pad is provided in the tray.

[0015] Preferably, a plurality of buffer devices are installed at the bottom of the base, wherein the buffer rods of the buffer devices are arranged upward and aligned with the bottom of the lifting plate.

[0016] Preferably, the first clutch transmission assembly, the second clutch transmission assembly and the third clutch transmission assembly arranged in sequence along the vertical direction are installed on the inner side of the mounting frame.

[0017] Preferably, a switch is provided between the first brush and the voltage generating device in the first clutch transmission assembly, the second clutch transmission assembly and the third clutch transmission assembly.

[0018] Preferably, the output voltage of the voltage generating device is 0.5kV to 1.5kV.

[0019] Preferably, only one of the first clutch transmission assembly, the second clutch transmission assembly and the third clutch transmission assembly is powered on at the same time.

[0020] Preferably, the clutch further comprises two end caps. The center holes of the end caps are rotatably connected to the input shaft. The two end caps are spaced apart and coaxially disposed; the plurality of clutch units are disposed between the two end caps. Elastic bodies are secured to opposing sides of the two end caps. The plurality of clutch units are sequentially arranged between the two elastomers. The two elastomers are in a compressed state. The ends of the external connecting cylinder are respectively secured to the two end caps.

[0021] Preferably, the output disc is provided with a plurality of guide holes on its edge. A plurality of guide rods are secured between the two end caps. Each guide rod passes through a guide hole in all output discs. Multiple compression springs are provided between any two adjacent clutch units. Each compression spring is sleeved onto a respective guide rod. The ends of the compression springs respectively abut against the output discs on opposite sides of two adjacent clutch units.

[0022] Preferably, the reverse transmission assembly includes a first gear, a second gear, a third gear, and a fourth gear. The first gear and the second gear are fixed to the input shafts of the first clutch transmission assembly and the second clutch transmission assembly, respectively. The third gear and the fourth gear are mounted between the first gear and the second gear to form a meshing connection.

[0023] The working method of the elevator with the electrically actuated clutch structure comprises the following steps:

[0024] Step 1: Place the object to be transported on the pallet. Turn on the motor and start it.

[0025] Step 2: When the tray needs to be raised, the first clutch transmission assembly is energized, and the second and third clutch transmission assemblies are de-energized; the output disk in the first clutch transmission assembly engages with the input disk; the motor drives the rack and the lifting plate to rise through the outer gear ring on the first clutch transmission assembly.

[0026] Step 3: When the tray needs to be lowered, the second clutch transmission assembly is energized, and the first and third clutch transmission assemblies are de-energized; the output disc in the second clutch transmission assembly engages with the input disc; the motor drives the rack and the lifting plate to lower through the outer gear ring on the second clutch transmission assembly.

[0027] Step 4: When the pallet needs to remain stationary, the third clutch transmission assembly is energized, and the first clutch transmission assembly and the second clutch transmission assembly are de-energized; the output disc in the third clutch transmission assembly engages with the input disc; since the input shaft of the third clutch transmission assembly is fixed on the mounting bracket, the lifting plate is locked at this time.

[0028] The present invention has the following beneficial effects:

[0029] 1. The present invention utilizes the on-off control of two sets of clutches with reverse transmission of the input shaft to realize the lifting and lowering control of the elevator, and realizes the locking of the elevator at any position by the on-off control of the third set of clutches; the lifting and locking control of the elevator can be realized when the motor continues to rotate at a constant speed, which can significantly improve the service life of the elevator.

[0030] 2. Compared with the traditional friction clutch, the clutch provided by the present invention has a smaller clutch plate stroke, faster response, and does not rely on external driving friction for engagement. It has very small friction heat, does not require oil supply, does not involve sealing problems, and has a more compact structure.

[0031] 3. The clutch of the present invention is provided with a plurality of stacked clutch units; each clutch unit forms a parallel structure, which disperses the torque transmitted from the output shaft to the outer gear ring, thereby reducing the torque received by a single clutch unit, generating a larger driving force, reducing the required voltage, and saving the cost of a high-voltage power supply; therefore, the clutch provided by the present invention has the performance of large driving force when power is on and small resistance when power is off, and has very obvious advantages in terms of safety and controllability. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0033] Figure 2 It is a schematic diagram of the internal structure of the base in the present invention.

[0034] Figure 3 Schematic diagram of the clutch drive mechanism of the present invention.

[0035] Figure 4 It is a schematic structural diagram of the clutch in the present invention.

[0036] Figure 5 Schematic diagram of the internal structure of the clutch in the present invention.

[0037] Figure 6 Schematic diagram of the combined structure of two clutch units in the present invention.

[0038] Figure 7a Schematic diagram of the structure of the input disk in the present invention.

[0039] Figure 7b Schematic diagram of the structure of the output disk in the present invention.

[0040] Figure 8 This is a diagram showing the working principle of the clutch unit in the present invention.

[0041] Figure 9 Schematic diagram of the structure of the buffer device in the present invention. DETAILED DESCRIPTION

[0042] The present invention will be further described below with reference to the accompanying drawings.

[0043] like Figure 1 and 2 As shown, a lifter with an electrically actuated clutch structure includes a base 1, a buffer device 2, a lifting plate 3, a clutch drive mechanism 4, a tray 5, a rubber pad 6 and a roller 8. A vertically arranged guide groove is provided on the base 1; the guide groove is in the shape of a trapezoidal groove. Wheel axles are arranged in sequence at equal intervals in the vertical direction in the guide groove. Rollers 8 are installed on the wheel axles and are arranged in sequence at equal intervals; the vertically arranged lifting plate 3 is slidably connected in the guide groove. The inner side surface of the lifting plate 3 is in contact with the roller 8. The lifting plate 3 can slide freely on the base 1. By providing the guide groove and the roller shaft 8, not only can it be ensured that the lifting plate 3 can move up and down smoothly in the vertical direction, but also the resistance of the lifting plate 3 during the up and down movement can be reduced.

[0044] A tray 5 is secured to the top of the lifting platform 3. Rubber pads 6 are located within the tray 5. These pads provide initial cushioning for objects moving onto the tray 5, mitigating the impact of the objects on the entire device. They also enhance the tray 5's anti-slip properties, preventing objects from falling during the lifting process and potentially causing accidents. Two vertical racks, spaced apart, are secured to the outer side of the lifting platform 3.

[0045] like Figure 3 and 4As shown, a clutch drive mechanism 4 is mounted in the middle of the base 1 and is used to drive and lock the lifting plate 3. Several buffer devices 2 are mounted at the bottom of the guide groove. The buffer rods of the buffer devices 2 are positioned upward and aligned with the bottom of the lifting plate 3. When the lifting plate 3 moves to the lower limit position, the lifting plate 3 contacts the buffer rods; the buffer devices 2 provide shock absorption for the lifting plate 3. The buffer devices 2 not only ensure that the lifting plate 3 returns smoothly to its initial position during downward movement, but also reduce the impact on the entire device if the lifting plate 3 suddenly drops due to a power outage.

[0046] The clutch drive mechanism 4 includes a mounting frame 41, a drive module, a locking module, and a voltage generator 46. The mounting frame 41 is fixed to the center of the base 1. The drive module is used to drive the lifting plate 3 to move upward and downward. The locking module is used to lock the lifting plate 3. The drive module includes a first clutch transmission assembly, a second clutch transmission assembly, a reverse transmission assembly 48, and a motor 7; the locking module includes a third clutch transmission assembly and a locking pin 45. The output voltage of the voltage generator 46 is 0.5kV to 1.5kV.

[0047] like Figure 3 、 4 As shown in Figure 5 , the first, second, and third clutch transmission assemblies have the same structure, each including a first brush 42, a clutch 43, a second brush 44, and an outer ring gear 47. The first, second, and third clutch transmission assemblies, arranged vertically in sequence, are mounted on the inside of a mounting frame 41. A voltage generator 46 is mounted on the outside of the mounting frame 41. The first voltage output interface of the voltage generator 46 is connected to the first and second brushes 42, 44 in the first clutch transmission assembly to control the engagement and disengagement of the clutch 43 in the first clutch transmission assembly. The second voltage output interface of the voltage generator 46 is connected to the first and second brushes 42, 44 in the second clutch transmission assembly to control the engagement and disengagement of the clutch 43 in the second clutch transmission assembly. The third voltage output interface of the voltage generator 46 is connected to the first and second brushes 42, 44 in the third clutch transmission assembly to control the engagement and disengagement of the clutch 43 in the third clutch transmission assembly. Only one of the first, second, and third clutch transmission assemblies is energized at any one time. A switch is provided between the first brush 42 and the voltage generator 46 in each of the first, second, and third clutch transmission assemblies. The switch can be manually opened and closed for manual lifting control, or automatically opened and closed by a controller for automatic lifting control.

[0048] When the first clutch transmission assembly in the drive module is engaged, the torque output by the motor 7 is transmitted in the forward direction to the lift plate 3, thereby driving the lift plate 3 upward. When the second clutch transmission assembly in the drive module is engaged, the torque output by the motor 7 is transmitted in the reverse direction to the lift plate 3 under the action of the reverse transmission assembly, thereby driving the lift plate 3 downward. When the third clutch transmission assembly in the locking module is engaged, the lift plate 3 is locked.

[0049] like Figure 4 、 5 As shown in Figures 6, 7a, and 7b, the clutch 43 includes an input shaft 431, an outer connecting tube 432, an end cover 433, a guide rod 434, an elastic body 435, a compression spring 436, and a clutch unit. The two end covers 433 are spaced apart and coaxially arranged; the input shaft 431 passes through the center holes of the two end covers 433. The two end covers 433 and the input shaft 431 form a rotating pair through bearings. Elastic bodies 435 are fixed to the opposite sides of the two end covers 433. The eight clutch units are arranged in sequence between the two elastic bodies 435. The two elastic bodies 435 are in a compressed state and can apply extrusion pressure to the eight clutch units, thereby improving transmission reliability and preventing slippage.

[0050] The clutch unit includes an input disc 437, two electrodeformable gel sheets 438, and two output discs 439. Opposing sides of the two electrodeformable gel sheets 438 contact opposite sides of the input disc 437. Opposing sides of the two electrodeformable gel sheets 438 are secured to opposing sides of the two output discs 439. Specifically, the electrodeformable gel sheets 438 are molded onto the output discs 439. The input disc 437 is keyed to the input shaft 431, circumferentially fixed and axially slidable.

[0051] like Figure 8 As shown, electrodeformable gel sheet 438 is composed of dielectric polymer particles and gel. The gel is specifically silicone gel. The dielectric polymer particles are distributed within and on the surface of the gel. When no voltage is applied to either side of electrodeformable gel sheet 438, the dielectric polymer particles are distributed on the surface of electrodeformable gel sheet 438 facing input disk 437. The dielectric polymer particles on the surface contact input disk 437, while the gel does not. Because the dielectric polymer particles are relatively smooth, rotation of input disk 437 does not drive rotation of electrodeformable gel sheet 438.

[0052] When a voltage is applied across the electrodeformable gel sheet 438, the different dielectric polymer particles generate an attractive force against each other. This forces the dielectric polymer particles on the surface of the electrodeformable gel sheet 438 to squeeze the gel and enter the interior. Simultaneously, the gel deforms outward under the pressure of the surface dielectric polymer particles, coming into contact with the input disk 437. At this point, because the coefficient of friction between the gel and the input disk 437 is much greater than that between the dielectric polymer particles and the input disk 437, and because the gel is viscous, shear friction forms between the gel and the input disk. The magnitude of the shear stress varies with the magnitude of the applied electric field. The rotation of the input disk 437 then drives the electrodeformable gel sheet 438 to rotate.

[0053] The edge of the output disc 439 is provided with six guide holes evenly distributed along the circumference of the central axis of the output disc 439. Six guide rods 434 pass through the six guide holes of each output disc 439. The ends of the guide rods 434 are fixed to the two end caps 433. The outer connecting cylinder 432 is sleeved over the two elastic bodies 435 and the outside of all clutch units. The ends of the outer connecting cylinder 432 are fixedly connected to the two end caps 433. Two outer gear rings 47 are fixed to the outer connecting cylinder 432 at intervals. The inner surface of the outer connecting cylinder 432 contacts each output disc.

[0054] Six compression springs 436 are provided between any two adjacent clutch units. The six compression springs 436 are respectively mounted on six guide rods. The two ends of the compression springs 436 respectively press against the output discs 439 on the opposite sides of the two adjacent clutch units. The compression springs 436 are in a compressed state, which can ensure uniform pressure between the input disc 437 and the electrodeformable gel sheet 438, avoiding slippage or failure to transmit power due to the gap between the input disc 437 and the electrodeformable gel sheet 438 caused by the friction between the keyway and the guide rod 434. All output discs 439 can transmit torque to the external connecting cylinder 432 through the guide rod and the end cover, thereby driving the outer gear ring 47 to rotate.

[0055] The outer connecting cylinder 432, input disc, output disc, and input shaft 431 are all made of conductive materials. The end caps are made of insulating material. The outer ring gear 47 is entirely made of insulating material, or an insulating material is placed between the inner ring of the outer ring gear 47 and the outer connecting cylinder 432 to prevent electrical charges on the outer ring gear 47 and the rack. The first brush 42 and the second brush 44 are both fixed to the mounting bracket 41. The first brush 42 contacts the outer connecting cylinder 432, while the second brush 44 contacts the input shaft 431. This ensures voltage conduction.

[0056] The input shafts of the first and second clutch transmission assemblies are both rotatably connected to the mounting bracket 41. The input shaft of the third clutch transmission assembly is secured to the mounting bracket 41 via a locking pin 45. The outer ring gears 47 on the first, second, and third clutch transmission assemblies all mesh with the rack on the lifting plate 3.

[0057] Motor 7 is fixed to mounting bracket 41. The rotating shaft of motor 7 is fixed to input shaft 431 of the first clutch transmission assembly. Reverse transmission assembly 48 includes a first gear, a second gear, a third gear, and a fourth gear. The first and second gears are respectively fixed to input shafts 431 of the first and second clutch transmission assemblies. The third and fourth gears are mounted between the first and second gears to form a meshing connection. While the direction of rotation of motor 7 remains unchanged, the direction of movement of the lifting plate can be controlled by simply reversing the engagement state of the first and second clutch transmission assemblies.

[0058] This embodiment provides a non-essential preferred solution, in which the buffer device 2 includes a cylinder body, a buffer spring 21, a piston plate 22, a buffer rod 23 and an exhaust hole 24. The cylinder body is fixed on the base. The piston plate 22 is slidably connected in the cylinder body. A buffer spring 21 is provided between the bottom surface of the inner cavity of the cylinder body and the piston plate 22; an exhaust hole 24 is provided at the bottom of the cylinder body. The bottom end of the buffer rod 23 is fixed to the piston plate 22. The top end of the buffer rod 23 faces the lifting plate. When the lifting plate 3 moves downward and contacts the buffer rod 23, it drives the piston plate 22 downward, and the air under the piston plate 22 is discharged through the exhaust hole 24. The buffer spring 21 is compressed, which has a shock-absorbing effect on the lifting plate 3. When the lifting plate 3 moves upward, the buffer spring 21 rebounds, and air enters through the exhaust hole 24, and the buffer device 2 returns to its initial state.

[0059] The working method of the lift with the electrically actuated clutch structure is as follows:

[0060] Step 1: Place the object to be transported on the tray 5. The motor 7 is powered on and rotates.

[0061] Step 2: When it is necessary to drive the tray 5 to rise, the first clutch transmission assembly is energized, and the second and third clutch transmission assemblies are de-energized; the output disc in the first clutch transmission assembly engages with the input disc; the outer gear ring in the first clutch transmission assembly rotates forward, driving the rack and the lifting plate to rise.

[0062] Step 3: When it is necessary to drive the tray 5 to lower, the second clutch transmission assembly is energized, and the first clutch transmission assembly and the third clutch transmission assembly are de-energized; the output disk in the second clutch transmission assembly engages with the input disk; the outer ring gear in the second clutch transmission assembly rotates in the opposite direction, driving the rack and the lifting plate to lower.

[0063] Step 4: When the tray 5 needs to remain stationary, the third clutch transmission assembly is energized, and the first clutch transmission assembly and the second clutch transmission assembly are de-energized; the output disk in the third clutch transmission assembly engages with the input disk; since the input shaft of the third clutch transmission assembly is fixed on the mounting bracket, the lifting plate is locked at this time; at the same time, since both the first clutch transmission assembly and the second clutch transmission assembly are de-energized, the torque of the motor 7 cannot be transmitted to the lifting plate.

[0064] During the entire lifting control process, the motor 7 only continuously supplies a constant current, thereby increasing the service life of the elevator.

Claims

1. A lifter with an electrically actuated clutch structure, comprising a base (1), a lifting plate (3) and a tray (5); characterized in that: It also includes a clutch drive mechanism (4); the lifting plate (3) is slidably connected to the base (1); a tray (5) is fixed on the top of the lifting plate (3); a vertically arranged rack is fixed on the lifting plate (3); the clutch drive mechanism (4) is installed in the middle of the base (1); the clutch drive mechanism (4) includes a mounting frame (41), a drive module, a locking module and a voltage generating device (46); the mounting frame (41) is fixed on the base (1); the drive module includes a first clutch transmission component, a second clutch transmission component, a reverse transmission component (48) and a motor (7); the locking module includes a third clutch transmission component; The first clutch transmission assembly, the second clutch transmission assembly and the third clutch transmission assembly have the same structure and all include a first brush (42), a clutch (43), a second brush (44) and an outer gear ring (47); the voltage generating device (46) is mounted on the mounting frame (41); the first brush (42) and the second brush (44) on the first clutch transmission assembly, the second clutch transmission assembly and the third clutch transmission assembly are connected to the voltage generating device (46); the on and off of the first brush (42) and the second brush (44) in the first clutch transmission assembly, the second clutch transmission assembly and the third clutch transmission assembly can be independently controlled; The clutch (43) comprises an input shaft (431), an external connection cylinder (432) and a clutch unit; a plurality of clutch units are arranged coaxially in sequence; the input shaft (431) coaxially passes through each clutch unit; the clutch unit comprises an input disc (437), two electrodeformable gel sheets (438) and two output discs (439); the opposite sides of the two electrodeformable gel sheets (438) are in contact with the two sides of the input disc (437); the opposite sides of the two electrodeformable gel sheets (438) are fixed to the opposite sides of the two output discs (439); the external connection cylinder (432) is sleeved on the outside of each clutch unit; Each input disk (437) is electrically connected to and fixed on the input shaft (431); each input disk (437) is not in contact with the external connection tube (432); each output disk (439) is electrically connected to and fixed on the external connection tube (432); each output disk (439) is not in contact with the input shaft (431); when voltage is applied to both sides of the electrodeformable gel sheet (438), the corresponding input disk (437) and output disk (439) are connected together; The electrodeformable gel sheet (438) is composed of dielectric polymer particles and gel; the dielectric polymer particles are distributed inside and on the surface of the gel; when no voltage is applied on both sides of the electrodeformable gel sheet (438), dielectric polymer particles are distributed on the surface of the electrodeformable gel sheet (438) facing the input disk (437); the dielectric polymer particles on the surface are in contact with the input disk (437), while the gel is not in contact with the input disk (437), and the clutch is in a disengaged state; when voltage is applied on both sides of the electrodeformable gel sheet (438), different dielectric polymer particles generate mutual attraction; the gel is squeezed and deformed, and contacts the input disk (437), and the clutch is in an engaged state; The outer gear ring (47) is fixed on the outer connecting cylinder (432); the outer gear ring (47) is meshed with the rack; the outer connecting cylinder (432), the input disc, the output disc and the input shaft (431) are all made of conductive materials; the first brush (42) is in contact with the outer connecting cylinder (432); the second brush (44) is in contact with the input shaft (431); The input shafts in the first clutch transmission assembly and the second clutch transmission assembly are both rotatably connected to the mounting frame (41); the input shaft in the third clutch transmission assembly is fixed to the mounting frame (41); the input shafts (431) in the first clutch transmission assembly and the second clutch transmission assembly are reversely connected via a reverse transmission assembly (48); and the input shaft (431) in the first clutch transmission assembly or the second clutch transmission assembly is driven to rotate by the motor (7).

2. The elevator with an electrically actuated clutch structure according to claim 1, characterized in that: The input shaft (431) and the mounting frame (41) are isolated by insulating material; the outer connecting cylinder (432) and the outer gear ring (47) are isolated by insulating material; and the outer connecting cylinder (432) and the input shaft (431) are isolated by insulating material.

3. The elevator with an electrically actuated clutch structure according to claim 1, characterized in that: The base (1) is provided with a vertically arranged guide groove; the guide groove is in the shape of a trapezoidal groove; axles are arranged in a vertical direction at equal intervals; rollers (8) are installed on the axles at equal intervals; a vertically arranged lifting plate (3) is slidably connected in the guide groove; the inner side surface of the lifting plate (3) contacts the rollers (8).

4. The elevator with an electrically actuated clutch structure according to claim 1, characterized in that: A switch is provided between the first brush (42) and the voltage generating device (46) in the first clutch transmission assembly, the second clutch transmission assembly, and the third clutch transmission assembly.

5. The elevator with an electrically actuated clutch structure according to claim 1, characterized in that: The output voltage of the voltage generating device (46) is 0.5 kV to 1.5 kV.

6. The elevator with an electrically actuated clutch structure according to claim 1, characterized in that: The clutch (43) further includes two end covers (433); the center holes of the end covers (433) are rotatably connected to the input shaft; the two end covers (433) are spaced apart and coaxially arranged; a plurality of clutch units arranged in sequence are all arranged between the two end covers (433); elastic bodies (435) are fixed to the opposite sides of the two end covers (433); the plurality of clutch units are arranged in sequence between the two elastic bodies (435); the two elastic bodies (435) are in a compressed state; and both ends of the external connecting tube (432) are fixed to the two end covers respectively.

7. The elevator with an electrically actuated clutch structure according to claim 6, characterized in that: The output disk (439) is provided with a plurality of guide holes on its edge; a plurality of guide rods (434) are fixed between the two end covers (433); each guide rod (434) passes through a guide hole on all output disks (439); a plurality of compression springs (436) are provided between any two adjacent clutch units; each compression spring (436) is respectively mounted on each guide rod; and both ends of the compression spring (436) respectively abut against the output disks (439) on opposite sides of the two adjacent clutch units.

8. The elevator with an electrically actuated clutch structure according to claim 1, characterized in that: The reverse transmission assembly (48) includes a first gear, a second gear, a third gear, and a fourth gear; the first gear and the second gear are fixed to the input shaft (431) in the first clutch transmission assembly and the second clutch transmission assembly respectively; the third gear and the fourth gear are installed between the first gear and the second gear to form a meshing relationship.

9. The method for operating a lift having an electrically actuated clutch structure according to any one of claims 1 to 8, wherein: The following steps are involved: Step 1: placing the object to be transported on the tray (5); energizing the motor (7) to rotate; Step 2: When the tray (5) needs to be driven to rise, the first clutch transmission assembly is powered on, and the second clutch transmission assembly and the third clutch transmission assembly are powered off; the output disc in the first clutch transmission assembly engages with the input disc; the motor (7) drives the rack and the lifting plate to rise via the outer gear ring on the first clutch transmission assembly; Step 3: When the tray (5) needs to be driven to lower, the second clutch transmission assembly is powered on, and the first clutch transmission assembly and the third clutch transmission assembly are powered off; the output disc in the second clutch transmission assembly engages with the input disc; the motor (7) drives the rack and the lifting plate to lower via the outer gear ring on the second clutch transmission assembly; Step 4: When the tray (5) needs to remain stationary, the third clutch transmission assembly is powered on, and the first clutch transmission assembly and the second clutch transmission assembly are powered off; the output disc in the third clutch transmission assembly is engaged with the input disc; and since the input shaft of the third clutch transmission assembly is fixed on the mounting bracket, the lifting plate is locked at this time.

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