A high-fault-tolerance linear motor drive assembly device and fault-tolerance method

Abstract

The present invention discloses a high-tolerance linear motor drive assembly and a fault-tolerance method, which relate to the technical field of logistics conveying devices, and include: a frame, which is arranged below the linear motor; an anti-collision guide lifting assembly, which is arranged corresponding to the starting end of the linear motor's conveying direction; a guide plate structure provided on the top of the anti-collision guide lifting assembly, which can guide and lift a slide; an over-proximity detection mechanism, which is mounted on the frame; a trigger end of the over-proximity detection mechanism arranged corresponding to the top of the guide plate structure; a slide that can abut the trigger end to cause the over-proximity detection mechanism to send an emergency stop signal; a lifting and adjusting mechanism, which is located below the linear motor, and the lifting end of the lifting and adjusting mechanism is connected to the linear motor for lifting and lowering; and a controller, which is electrically connected to the over-proximity detection mechanism and the lifting and adjusting mechanism. The present invention has multiple protective structures, a high fault tolerance rate, and can prevent collisions between the slide and the linear motor.

Description

Technical Field

[0001] The present invention relates to the technical field of blade grid structure forming, and in particular to a high-fault-tolerance linear motor drive assembly device and a fault-tolerance method. Background Art

[0002] In airport baggage handling systems, drive devices are required for both transport and sorting-related equipment. Currently, conventional conveying equipment uses rotary motors to provide conveying power. However, in baggage sorting equipment, linear motors are the primary means of providing conveying power. While conventional rotary motors convert rotary motion into linear motion of moving parts, linear motors achieve linear motion without requiring any intermediate conversion. Baggage sorting conveyor lines are typically circular and offer high continuity. If rotary motors were used to power them, the intermediate conversion device required to convert rotary motion into linear motion would be complex. In contrast, linear motors eliminate the need for intermediate conversion devices, resulting in a relatively simple structure, rapid response, and excellent followability.

[0003] At present, there are two common linear motor drive modes, such as Figure 1 As shown in Figure 1, the driving mode 1 is the linear motor magnetic pole flat type, and the slide is driven to perform linear motion as the magnetic pole changes; Figure 2 As shown, drive mode two involves the metal plate being driven by induction in the magnetic field formed by the linear motor's magnetic pole pair. When using a linear motor, in drive mode one, the gap between the linear motor and the slide is particularly important, as it determines the magnitude of the driving force. Therefore, the installation requirements for the linear motor are relatively high, meaning that a certain distance must be maintained between the linear motor and the slide, which should not be too large. Due to these installation requirements, after a pallet has carried multiple loads, the slide may become too close to the linear motor or tilt due to deformation of the mounting frame or wear of the guide wheels. Furthermore, the loop conveying speed is relatively high, and the occurrence of the above situations can easily cause the linear motor and the slide to collide, resulting in damage to the equipment. Similarly, in drive mode two, the distance between the linear motor's magnetic poles N(S) and S(N) is also relatively narrow. The metal plate moving in the magnetic field may collide with the linear motor due to the tilt of the slide, causing damage.

[0004] Chinese patent (CN109277309A) discloses an anti-collision device and a cross-belt sorting system, and Chinese patent (CN108355978B) discloses a linear motor anti-collision device and a cross-belt sorting machine. The above-mentioned prior art only uses the change in the motion state of the mechanical structure to determine whether the linear motor will be hit. The detection method is single and has a low fault tolerance rate. This method lacks protection against sudden situations. If the slide rises or falls or tilts too much instantly, even if the corresponding linear motor is detected to be about to be hit, damage to the linear motor cannot be avoided.

[0005] Therefore, how to provide a high fault tolerance linear motor drive assembly device and fault tolerance method with multiple protection structures, high fault tolerance, and the ability to avoid collision between the slide and the linear motor is an urgent problem that needs to be solved by technical personnel in this field. Summary of the Invention

[0006] In view of this, the present invention proposes a high-tolerance linear motor drive combination device and fault-tolerant method, aiming to solve the technical problem that the traditional linear motor anti-collision device has a low fault tolerance and cannot effectively avoid collisions between the slide and the linear motor.

[0007] In order to achieve the above object, the present invention adopts the following technical solutions:

[0008] In one aspect, the present invention provides a high-tolerance linear motor drive assembly device, wherein the linear motor is connected to a slide to drive the slide to move and transport above the linear motor; the assembly device comprises:

[0009] A frame, wherein the frame is arranged below the linear motor;

[0010] An anti-collision guide lifting assembly is installed on the frame and arranged corresponding to the starting end of the conveying direction of the linear motor; a guide plate structure is provided on the top of the anti-collision guide lifting assembly, and the guide plate structure is configured to slidably abut and guide the slide to be lifted above the corresponding linear motor when the operating height of the slide is lower than its preset height;

[0011] an over-proximity detection mechanism, the over-proximity detection mechanism being mounted on the frame; a trigger end of the over-proximity detection mechanism being arranged above the guide plate structure; and the slideway being able to abut against the trigger end when sliding across the upper surface of the guide plate structure, thereby causing the over-proximity detection mechanism to issue an emergency stop signal;

[0012] A lifting adjustment mechanism, the lifting adjustment mechanism is mounted on the frame and located below the linear motor, and the lifting end of the lifting adjustment mechanism is connected to the linear motor to adjust the lifting of the linear motor;

[0013] A controller is electrically connected to the over-proximity detection mechanism and the lifting and adjusting mechanism, so as to control the linear motor to descend and avoid the slide through the lifting and adjusting mechanism when an emergency stop signal is received from the over-proximity detection mechanism.

[0014] When the high-tolerance linear motor drive combination device of the present invention is in use, the trigger end of the proximity detection mechanism is higher than the guide plate structure. When the operating height of the slide gradually decreases and approaches the preset height, it can preferentially touch the trigger end, so that the proximity detection mechanism sends an emergency stop signal, and then the controller controls the shutdown of the linear motor to stop driving the slide; when the height of the running slide changes greatly, the operating height is lower than the preset height and preferentially touches the guide plate structure, the guide plate structure of the anti-collision guide lifting assembly can guide the slide to move and lift the slide height to avoid the slide from colliding with the linear motor; and when the slide slides along the upper surface of the guide plate structure, it will inevitably touch the trigger end to achieve shutdown, so as to prevent the slide from crossing the guide plate structure and hitting the linear motor; after receiving the emergency stop signal issued by the proximity detection mechanism, the controller can control the linear motor to urgently descend through the lifting and adjusting mechanism to avoid the slide, so as to prevent the slide from inertia overshooting to the top of the linear motor and pressing on the linear motor.

[0015] As a further improvement of the above technical solution, the anti-collision guide lifting assembly includes a detection plate mounting bracket arranged corresponding to the starting end of the linear motor conveying direction; the top of the detection plate mounting bracket is provided with an arc-shaped guide plate 1; the top surface of the arc-shaped guide plate 1 near one end of the linear motor is higher than the top surface of the linear motor, which can guide and gradually lift the running slide;

[0016] The over-proximity detection mechanism includes a detection plate and an emergency trigger switch; the middle part of the detection plate is rotatably mounted on the detection plate mounting bracket; the top end of the detection plate extends upward to above the arc-shaped guide plate to form a trigger end, and the slide can abut and push the trigger end to drive the detection plate to rotate; the detection plate is transmission-connected to the emergency trigger switch to turn on the emergency trigger switch when rotating; the emergency trigger switch is electrically connected to the controller to send an emergency stop signal.

[0017] The beneficial effects of the above technical solution are: the arc-shaped guide plate and the buffer slide collide together, which can make the slide gradually rise along its arc-shaped top surface to avoid direct collision with the side end of the linear motor; and when the slide slides along the upper surface of the arc-shaped guide plate, it will inevitably touch and push the upper end of the detection plate to rotate the detection plate, and the rotating detection plate turns on the emergency trigger switch to make it send an emergency stop signal; the detection plate serves as a mechanical switch for shutdown control, which improves the reliability of anti-collision.

[0018] As a further improvement of the above technical solution, the anti-collision guide lifting assembly also includes an anti-collision guide assembly; the anti-collision guide assembly is installed on the frame and is located on the side of the detection plate mounting bracket away from the linear motor, and an arc-shaped guide plate 2 is provided on the top of the anti-collision guide assembly; the arc-shaped guide plate 2 is smoothly connected with the arc-shaped guide plate 1 to jointly form the arc-shaped guide plate structure.

[0019] The beneficial effect of the above technical solution is that the arc-shaped guide plate 2 and the arc-shaped guide plate 1 are smoothly connected to form a longer arc-shaped guide and lifting track, further mitigating the impact of the slide.

[0020] As a further improvement of the above technical solution, it also includes a mounting rack; a mounting hole is provided at the upper end of the rack; the mounting rack blocks the mounting hole and one end of the mounting rack is hinged to the rack, and the other end is detachably connected to the rack; the detection plate mounting bracket and the lifting adjustment mechanism are both installed at the upper end of the mounting rack; the mounting rack can be flipped open to the bottom of the rack to construct a maintenance work area corresponding to the bottom of the rack.

[0021] The beneficial effects of the above technical solution are: the detection plate mounting bracket and the lifting and adjusting mechanism are both installed at the upper end of the mounting frame. After the other end of the mounting frame is disassembled from the frame, the mounting frame can be flipped downward and opened, so that the detection plate mounting bracket, the arc-shaped guide plate installed on the detection plate mounting bracket, the over-proximity detection mechanism, the lifting and adjusting mechanism and the linear motor installed on the lifting and adjusting mechanism are all moved out to the bottom of the frame, and a maintenance operation area is constructed under the frame to facilitate maintenance and maintenance operations by maintenance personnel, that is, convenient maintenance and maintenance of various components can be achieved without disassembling the slide.

[0022] As a further improvement of the above technical solution, a gas spring is installed at the other end of the mounting frame to elastically reset the mounting frame when it is flipped open.

[0023] The beneficial effect of the above technical solution is that after the maintenance is completed, the mounting frame can be quickly restored to its original position under the action of the gas spring, and the maintenance personnel can simply connect the other end of the mounting frame to the frame. The gas spring makes flipping the mounting frame more time-saving and labor-saving.

[0024] As a further improvement of the above technical solution, the lifting and adjusting mechanism includes a driving motor, a main transmission wheel, a secondary transmission wheel, a transmission structure fixing frame, a transmission screw, a transmission screw sleeve and a lifting frame; the driving motor and the transmission structure fixing frame are both installed at the bottom end of the mounting frame, the main transmission wheel is coaxially sleeved on the rotating shaft of the driving motor, one end of the transmission screw is rotatably connected to the transmission structure fixing frame, the secondary transmission wheel is coaxially sleeved on the transmission screw and is connected to the main transmission wheel in transmission engagement; the other end of the transmission screw movably passes through the mounting frame and is threadedly connected to the transmission screw sleeve; the lifting frame is fixed on the transmission screw sleeve; the linear motor is installed on the lifting frame.

[0025] The beneficial effects of the above technical solution are: the driving motor drives the main transmission wheel to rotate, the main transmission wheel drives the auxiliary transmission wheel to rotate, the auxiliary transmission wheel drives the transmission screw to rotate, and the rotating transmission screw can make the transmission screw sleeve rise and fall along the length direction of the transmission screw; the rising and falling transmission screw sleeve further drives the lifting frame to rise and fall, thereby realizing the lifting control of the linear motor installed on the lifting frame.

[0026] As a further improvement of the above technical solution, the auxiliary transmission wheel, the transmission screw and the transmission screw sleeve are all multiple,

[0027] The plurality of auxiliary transmission wheels are evenly distributed along the circumference of the main transmission wheel and are all meshed with the main transmission wheel; one end of the plurality of transmission screws are rotatably connected to the transmission structure fixing frame, and the plurality of auxiliary transmission wheels are coaxially sleeved on the plurality of transmission screws in a one-to-one correspondence; the other ends of the plurality of transmission screws movably pass through the mounting frame and are threadedly connected to the plurality of transmission screw sleeves in a one-to-one correspondence; the plurality of transmission screw sleeves are fixedly connected to the lifting frame.

[0028] The beneficial effects of the above technical solution are: multiple transmission screws jointly construct the lifting and lowering guide structure of the linear motor, which has good stability; the drive motor synchronously drives the transmission screw to rotate through the main transmission wheel, thereby realizing precise lifting and lowering control of the linear motor, which can facilitate the adjustment of the installation distance between the linear motor and the slide, and can also control the linear motor to descend to avoid the slide in an emergency.

[0029] As a further improvement of the above technical solution, it also includes a distance sensor component, which is arranged below the slide to monitor the running height and tilt angle of the slide, and the distance sensor component is electrically connected to the controller.

[0030] The beneficial effect of the above technical solution is that the distance measuring sensor component can measure the operating height and tilt angle of the slide without contact, so as to provide early warning and monitoring of the operation status of the slide.

[0031] Another aspect of the present invention provides a fault-tolerance method for a high-fault-tolerance linear motor drive assembly device, comprising the following fault-tolerance measures:

[0032] S1: Set up a proximity detection mechanism and trigger switch between the slide and the linear motor: Install a proximity detection mechanism on the frame, and arrange the trigger end of the proximity detection mechanism at a height lower than the normal operating height of the slide and higher than the top surface of the linear motor. Whether the distance between the slide and the linear motor is too close is determined by whether the running slide touches the trigger end. When the slide's operating height is lower than the trigger end and touches the trigger end, the proximity detection mechanism sends an emergency stop signal to the controller, which causes the linear motor to stop urgently.

[0033] S2. Set up anti-collision guide: Arrange anti-collision guide lifting components on the frame at the starting end corresponding to the linear motor's conveying direction; when the slide's operating height is lower than the top surface of the linear motor, the guide plate structure guides and lifts the slide to prevent the slide from colliding with the linear motor;

[0034] S3: Set up a distance adjustment mechanism between the slide and the linear motor: arrange a lifting adjustment mechanism on the frame below the corresponding linear motor; after the controller receives the emergency stop signal sent by the proximity detection mechanism, it sends a command signal to the lifting adjustment mechanism to lower the height of the linear motor. The lifting adjustment mechanism controls the linear motor to descend to avoid the running slide to prevent collision.

[0035] As a further improvement to the above technical solution, the following fault tolerance measures are also included:

[0036] S4: A distance measuring sensor assembly is provided under the slide to monitor the distance between the slide and the linear motor, and monitor the distance between the slide and the linear motor and the tilt angle of the slide in real time;

[0037] S5: Setting a flippable mounting frame to construct a flip maintenance structure: During maintenance, flip the mounting frame downward to rotate the lifting adjustment mechanism and the detection plate mounting bracket installed on the mounting frame out of the rack, and construct a maintenance work area under the corresponding rack.

[0038] It can be seen from the above technical solutions that, compared with the prior art, the present invention provides a high-fault-tolerance linear motor drive assembly device and fault-tolerance method, which have the following advantages and beneficial effects:

[0039] 1. The lifting and lowering adjustment mechanism of the present invention can automatically adjust the distance between the linear motor and the slide, ensuring the safe distance installation requirements between the linear motor and the slide.

[0040] 2. In order to avoid collision between the linear motor and the slide, the present invention provides a high-tolerance linear motor drive assembly with four layers of protection. The first layer of protection is to set a distance sensor assembly. The distance sensor assembly has three functions. First, it is used to detect the accuracy of the height position of the linear motor when the drive device is installed. Second, it is used to monitor the change in the distance between the slide and the linear motor during the operation of the drive device. Finally, it monitors the tilt angle of the slide perpendicular to the conveying direction. When it is detected that the distance between the slide and the linear motor is lower than the set value or the tilt angle of the slide exceeds the set value, the vehicle will stop, alarm, and wait for maintenance. The second layer of protection is to set an emergency trigger switch. The on and off state of the emergency trigger switch is controlled by mechanical touch. When mechanical touch occurs, the on and off state of the emergency trigger switch changes, and it is judged that the distance between the linear motor and the slide is too close, that is, the vehicle will stop, alarm, and wait for maintenance. The third layer of protection is the aforementioned lifting and adjusting mechanism. When the aforementioned first or second layer of protection is triggered, the automatic adjustment mechanism will move the linear motor downward away from the slide to avoid such collisions. Figure 1 The fourth protection measure is to add an anti-collision guide lifting component at the front end of the relative slide movement direction. When the slide deviates too much toward the linear motor, the guide plate structure will guide the slide away from the linear motor, so that the slide slides close to the linear motor, preventing the linear motor from being fundamentally damaged.

[0041] 3. In order to facilitate maintenance, the present invention designs a flip structure of the mounting frame, which can rotate the linear motor as a whole out of the original working position and can quickly restore it with the help of the elastic force of the gas spring after maintenance is completed. BRIEF DESCRIPTION OF THE DRAWINGS

[0042] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are merely embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without paying any creative work.

[0043] Figure 1 Schematic diagram of the structure of the linear motor and slide using drive mode 1;

[0044] Figure 2 Schematic diagram of the structure of the linear motor and slide using drive mode 2;

[0045] Figure 3 Schematic diagram of the linear motor and slide installed in the running track of the present invention;

[0046] Figure 4 The present invention Figure 3 The structure at A in the middle is a schematic diagram of the driving mode 1;

[0047] Figure 5 The present invention Figure 3 The structure at A in the middle is a schematic diagram of the driving form of driving mode 2;

[0048] Figure 6 A schematic diagram of the arrangement of the distance measuring sensor components of the high fault tolerance linear motor drive assembly of the present invention;

[0049] Figure 7 Schematic diagram of the installation state of the anti-collision guide lifting assembly and the proximity detection mechanism of the high-tolerance linear motor drive assembly of the present invention;

[0050] Figure 8 A schematic diagram of the internal structure of the over-proximity detection mechanism of the high-tolerance linear motor drive assembly device of the present invention;

[0051] Figure 9 Schematic diagram of the installation position relationship between the linear motor, guide plate structure and detection plate of the high fault tolerance linear motor drive assembly device of the present invention;

[0052] Figure 10 A schematic diagram of the installation state of the lifting and adjusting mechanism of the high-tolerance linear motor drive assembly device of the present invention;

[0053] Figure 11 A schematic diagram of the internal structure of the lifting and adjusting mechanism of the high-tolerance linear motor drive assembly of the present invention;

[0054] Figure 12 A schematic diagram of the mounting frame of the high-fault-tolerance linear motor drive assembly device of the present invention in a flip-over maintenance state;

[0055] Figure 13 Schematic diagram of the working process of the high fault tolerance linear motor drive assembly device of the present invention;

[0056] Figure: 1. Frame; 11. Mounting hole; 12. Gas spring mounting bracket; 2. Anti-collision guide lifting assembly; 21. Detection plate mounting bracket; 211. Arc guide plate 1; 22. Anti-collision guide assembly; 221. Arc guide plate 2; 23. Guide plate structure; 3. Over-proximity detection mechanism; 31. Detection plate; 311. Trigger end; 312. Detection plate shaft; 32. Emergency trigger switch; 33. Spring; 34. Electrical installation base; 35. Electrical bracket; 4. Lifting adjustment mechanism; 41. Drive Motor; 42. Main transmission wheel; 43. Auxiliary transmission wheel; 44. Transmission structure fixing frame; 45. Transmission screw; 46. Transmission screw sleeve; 47. Lifting frame; 48. Lifting structure outer cover; 5. Mounting frame; 51. Gas spring; 52. Fixing screw; 53. Gas spring mounting plate; 54. Articulated shaft; 6. Distance sensor assembly; 61. Distance sensor; 7. Linear motor; 71. Stator; 72. Mover; 73. Magnetic field; 8. Slide; 81. Guide wheel; 9. Running track; 91. Guide rail. DETAILED DESCRIPTION

[0057] The following describes embodiments of the present invention in detail, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, and are not to be construed as limiting the present invention.

[0058] In the description of the present invention, it should be understood that the terms "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as limiting the present invention.

[0059] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature identified as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, "plurality" means two or more, unless otherwise specifically defined.

[0060] In the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," "connect," "fixed," etc. should be understood broadly. For example, they may refer to fixed connection, detachable connection, or integration; mechanical connection or electrical connection; direct connection or indirect connection through an intermediate medium; internal communication between two components or interaction between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on specific circumstances.

[0061] In a conveying device that uses a linear motor 7 to drive a slide 8 to transport luggage and other items, the slide 8 is horizontally arranged and slidably connected to the guide rail 91 of the running track 9 via a guide wheel 81. The linear motor 7 is connected to the slide 8 to drive the slide 8 to move above the linear motor 7 for transportation. The mover of the linear motor 7 is fixedly connected to and drives the slide 8. There are two types of drive structures for the mover and stator of the linear motor 7: one is that the mover is parallel to the upper end of the stator, which places high demands on the installation and operating accuracy of the distance between the slide 8 and the upper end surface of the stator and the inclination of the slide 8. Figure 1 The other is that the mover is inserted vertically into the gap of the vertical arrangement of the stator, which mainly requires the installation and operation accuracy of the slide 8. Figure 2 Driving mode two is shown.

[0062] like Figures 3 to 12 As shown, a high-tolerance linear motor drive assembly device includes:

[0063] Frame 1, frame 1 is installed on the running track 9 and is arranged below the linear motor 7;

[0064] The anti-collision guide lifting assembly 2 is mounted on the frame 1 and arranged at the starting end of the conveying direction of the linear motor 7; a guide plate structure 23 is provided on the top of the anti-collision guide lifting assembly 2, and the guide plate structure 23 is configured to slide against and guide the lifting slide 8 to above the corresponding linear motor 7 when the operating height of the slide 8 is lower than its preset height;

[0065] The over-proximity detection mechanism 3 is mounted on the frame 1; the trigger end 311 of the over-proximity detection mechanism 3 is arranged above the guide plate structure 23; when the slide 8 slides over the upper surface of the guide plate structure 23, it can abut the trigger end 311, causing the over-proximity detection mechanism 3 to issue an emergency stop signal;

[0066] The lifting adjustment mechanism 4 is installed on the frame 1 and is located below the linear motor 7. The lifting end of the lifting adjustment mechanism 4 is connected to the linear motor 7 to adjust the lifting of the linear motor 7;

[0067] The controller is electrically connected to the over-proximity detection mechanism 3 and the lifting and adjusting mechanism 4, so as to control the linear motor 7 to descend to avoid the slide 8 through the lifting and adjusting mechanism 4 when receiving the emergency stop signal sent by the over-proximity detection mechanism 3.

[0068] When the high-tolerance linear motor drive assembly device of this embodiment is used, the trigger end 311 of the over-proximity detection mechanism 3 is arranged higher than the guide plate structure 23. When the operating height of the slide 8 gradually decreases and approaches the preset height, it will preferentially touch the trigger end 311, so that the over-proximity detection mechanism 3 sends an emergency stop signal, and then the controller controls the shutdown of the linear motor 7 to stop driving the slide 8; when the height of the running slide 8 changes greatly, the operating height is lower than the preset height and preferentially touches the guide plate structure 23, the anti-collision guide lifting component 2 can guide the slide 8 to move and raise the height of the slide 8 to prevent the slide 8 from colliding with the linear motor 7; and when the slide 8 slides along the upper surface of the guide plate structure 23, it will inevitably touch the trigger end 311 to stop the slide 8, so as to prevent the slide 8 from crossing the guide plate structure 23 and hitting the linear motor 7; after receiving the emergency stop signal from the too-close detection mechanism 3, the controller can control the linear motor 7 to descend urgently through the lifting and adjusting mechanism 4 to avoid the slide 8, so as to prevent the slide 8 from overshooting the linear motor 7 due to inertia and hitting the linear motor 7.

[0069] In some embodiments, the anti-collision guide lifting assembly 2 includes a detection plate mounting bracket 21 arranged at the starting end of the conveying direction of the linear motor 7; a curved guide plate 1 211 is provided on the top of the detection plate mounting bracket 21; the top surface of the curved guide plate 1 211 near the end of the linear motor 7 is higher than the top surface of the linear motor 7, which can guide and gradually lift the running slide 8;

[0070] The over-proximity detection mechanism 3 includes a detection plate 31 and an emergency trigger switch 32; the middle part of the detection plate 31 is rotatably mounted on the detection plate mounting bracket 21 through a detection plate rotating shaft 312 arranged horizontally and vertically in the conveying direction of the slide 8; the top of the detection plate 31 extends upward to above the arc-shaped guide plate 211 to form a trigger end 311, and the slide 8 can abut and push the trigger end 311 to drive the detection plate 31 to rotate; the detection plate 31 is transmission-connected to the emergency trigger switch 32 to turn on the emergency trigger switch 32 when rotating; the emergency trigger switch 32 is electrically connected to the controller to send an emergency stop signal.

[0071] The arc-shaped guide plate 211 plays the role of buffering the collision of the slide 8, and can gradually lift the slide 8 along its arc-shaped top surface to avoid directly colliding with the side end of the linear motor 7; and when the slide 8 slides along the upper surface of the arc-shaped guide plate 211, it will inevitably touch and push the upper end of the detection plate 31 to rotate the detection plate 31, and the rotating detection plate 31 turns on the emergency trigger switch 32 to make it send an emergency stop signal; the detection plate 31 serves as a mechanical switch for shutdown control, which improves the reliability of anti-collision.

[0072] Specifically, the proximity detection mechanism 3 also includes a spring 33, an electrical installation base plate 34 and an electrical bracket 35; the electrical installation base plate 34 is fixedly mounted on the upper end of the frame 1, and the electrical bracket 35 is mounted on the upper end of the electrical installation base plate 34; the emergency trigger switch 32 is fixedly mounted on the electrical bracket 35 and corresponds to a side surface of the lower end of the detection plate 31; one end of the spring 33 is fixedly connected to the lower end of the detection plate 31, and the other end is fixedly connected to the electrical bracket 35, so as to elastically press the lower end of the detection plate 31 against the emergency trigger switch 32, so that the emergency trigger switch 32 is in a normally closed or normally open state under force. When the distance between the slide 8 and the linear motor 7 is too close and it slides over the detection plate 31, the slide 8 will push the trigger end 311 of the detection plate 31 and overcome the pulling torque of the spring 33, so that the detection plate 31 rotates around the detection plate rotation axis 312 in the opposite direction of the pulling direction of the spring 33, thereby changing or separating the force state of the detection plate 31 and the emergency trigger switch 32, and switching the emergency trigger switch 32 to the normally closed or normally open state, thereby feeding back the state of the emergency to the controller.

[0073] In some embodiments, the anti-collision guide lifting assembly 2 also includes an anti-collision guide assembly 22; the anti-collision guide assembly 22 is installed on the frame 1 and is located on the side of the detection plate mounting bracket 21 away from the linear motor 7, and an arc-shaped guide plate 221 is provided on the top of the anti-collision guide assembly 22; the arc-shaped guide plate 221 and the arc-shaped guide plate 1 211 are smoothly transitioned and connected to form an arc-shaped guide plate structure 23.

[0074] The arc-shaped guide plate 2 221 and the arc-shaped guide plate 1 211 are smoothly connected to form a longer arc-shaped guide and lifting track, further mitigating the impact of the slide 8 .

[0075] Specifically, there are two arc-shaped guide plates 211, which are symmetrically arranged on both sides of the detection plate mounting bracket 21 in the width direction; the detection plate 31 is arranged between the two corresponding arc-shaped guide plates 211; the upper part of the arc-shaped guide plate 221 and the middle part of the detection plate 31 in the width direction both have avoidance gaps for avoiding the mover of the linear motor 7.

[0076] In some embodiments, a mounting frame 5 is further included; a mounting hole 11 is provided at the upper end of the frame 1; the mounting frame 5 blocks the mounting hole 11 and one end thereof is hinged to the frame 1 through a hinge shaft 54, and the other end thereof is detachably connected to the frame 1 through a fixing screw 52; the detection plate mounting bracket 21 and the lifting adjustment mechanism 4 are both installed at the upper end of the mounting frame 5; the mounting frame 5 can be flipped open to the bottom of the frame 1 to construct a maintenance work area below the corresponding frame 1.

[0077] The detection plate mounting bracket 21 and the lifting adjustment mechanism 4 are both mounted on the upper end of the mounting frame 5. After removing the fixing screws 52 to separate the other end of the mounting frame 5 from the frame 1, the mounting frame 5 can be flipped downward to open, so that the detection plate mounting bracket 21, the arc-shaped guide plate 211 mounted on the detection plate mounting bracket 21 and the over-proximity detection mechanism 3, the lifting adjustment mechanism 4 and the linear motor 7 mounted on the lifting adjustment mechanism 4 are all moved out to the bottom of the frame 1. A maintenance work area is constructed under the frame 1 to facilitate maintenance and maintenance operations by maintenance personnel, that is, convenient maintenance and repair of various components can be achieved without disassembling the slide.

[0078] In some embodiments, a gas spring 51 is installed at the other end of the mounting frame 5 to elastically return the mounting frame 5 to the flipped open state.

[0079] After the maintenance is completed, the mounting frame 5 can be quickly restored to its original position under the action of the gas spring 51, and the maintenance personnel can simply connect the other end of the mounting frame 5 to the rack 1. The gas spring 51 makes it more time-saving and labor-saving to flip the mounting frame 5.

[0080] Specifically, the mounting hole 11 is a rectangular strip hole opened along the length direction of the frame 1. The bottom end of the frame 1 corresponds to one end in the length direction of the mounting hole 11, and a gas spring mounting bracket 12 is fixed. A gas spring mounting plate 53 is fixed to the bottom surface of the other end of the mounting bracket 5; one end of the gas spring 51 is hinged to the gas spring mounting bracket 12, and the other end is hinged to the gas spring mounting plate 53.

[0081] In some embodiments, the lifting and adjusting mechanism 4 includes a driving motor 41, a main transmission wheel 42, a secondary transmission wheel 43, a transmission structure fixing frame 44, a transmission screw 45, a transmission screw sleeve 46 and a lifting frame 47; the driving motor 41 and the transmission structure fixing frame 44 are both installed at the bottom end of the mounting frame 5, the main transmission wheel 42 is coaxially sleeved on the rotating shaft of the driving motor 41, one end of the transmission screw 45 is rotatably connected to the transmission structure fixing frame 44, and the secondary transmission wheel 43 is coaxially sleeved on the transmission screw 45 and is transmission-engaged with the main transmission wheel 42; the other end of the transmission screw 45 movably passes through the mounting frame 5 and is threadedly connected to the transmission screw sleeve 46; the lifting frame 47 is fixed on the transmission screw sleeve 46; the linear motor 7 is installed on the lifting frame 47.

[0082] The driving motor 41 drives the main transmission wheel 42 to rotate, the main transmission wheel 42 drives the auxiliary transmission wheel 43 to rotate, and the auxiliary transmission wheel 43 drives the transmission screw 45 to rotate. The rotating transmission screw 45 can make the transmission screw sleeve 46 rise and fall along the length direction of the transmission screw 45; the rising and falling transmission screw sleeve 46 further drives the lifting frame 47 to rise and fall, thereby realizing the lifting control of the linear motor 7 installed on the lifting frame 47.

[0083] In some embodiments, there are multiple auxiliary transmission wheels 43, transmission screws 45 and transmission screw sleeves 46.

[0084] Multiple auxiliary transmission wheels 43 are evenly distributed along the circumference of the main transmission wheel 42 and are all engaged with the main transmission wheel 42; one end of the multiple transmission screws 45 are rotatably connected to the transmission structure fixing frame 44, and the multiple auxiliary transmission wheels 43 are coaxially sleeved on the multiple transmission screws 45 in a one-to-one manner; the other ends of the multiple transmission screws 45 are movably passed through the mounting frame 5 and are threadedly connected to multiple transmission screw sleeves 46 in a one-to-one manner; the multiple transmission screw sleeves 46 are fixedly connected to the lifting frame 47.

[0085] Multiple transmission screws 45 together construct the lifting and lowering guide structure of the linear motor 7, which has good stability; the drive motor 41 synchronously drives the transmission screw 45 to rotate through the main transmission wheel 42, realizing precise lifting and lowering control of the linear motor 7, which can facilitate the adjustment of the installation distance between the linear motor 7 and the slide 8, and can also control the linear motor 7 to descend to avoid the slide 8 in an emergency.

[0086] Specifically, the lifting structure outer cover 48 is fixed with a cover buckle at the bottom end of the mounting frame 5, and the main transmission wheel 42, the auxiliary transmission wheel 43 and the transmission structure fixing frame 44 are all located inside the lifting structure outer cover 48; the drive motor 41 is fixedly installed at the bottom end of the lifting structure outer cover 48, and its rotating shaft is movable through the interior of the lifting structure outer cover 48 and connected to the main transmission wheel 42.

[0087] In some embodiments, a distance sensor assembly 6 is further included. The distance sensor assembly 6 is disposed below the slide 8 to monitor the operating height and tilt angle of the slide 8 . The distance sensor assembly 6 is electrically connected to the controller.

[0088] The distance measuring sensor assembly 6 can measure the operating height and tilt angle of the slide 8 without contact, so as to provide early warning and monitoring of the operating status of the slide 8.

[0089] Specifically, the distance sensor assembly 6 is composed of two groups, each group consisting of two distance sensors 61. The two distance sensors 61 in one group are mounted on the side of the electrical bracket 35 close to the linear motor 7 and spaced apart along the width direction of the slide 8. The sensing ends of the two distance sensors 61 are both arranged upward to detect the running height on both sides of the width direction of the lower surface of the slide 8 passing above them. By comparing with the installation height of the linear motor 7, the distances x1 and x2 between the two sides of the width direction of the lower surface of the slide 8 and the upper end surface of the linear motor 7 can be detected in real time. Another group of distance sensors 61 can be arranged on the running track 9 on the side of the anti-collision guide assembly 22 away from the detection plate mounting bracket 21 to provide early warning and monitor the running height of the slide 8 before the slide 8 moves close to the linear motor 7.

[0090] Another aspect of the present invention provides a fault-tolerance method for a high-fault-tolerance linear motor drive assembly device, comprising the following fault-tolerance measures:

[0091] S1: Setting a mechanical switch for detecting and triggering the proximity between the slide 8 and the linear motor 7: Installing a proximity detection mechanism 3 on the frame 1, and arranging the trigger end 311 of the proximity detection mechanism 3 at a height lower than the normal operating height of the slide 8 and higher than the top surface height of the linear motor 7; judging whether the distance between the slide 8 and the linear motor 7 is too close by checking whether the running slide 8 touches the trigger end 311; when the operating height of the slide 8 is lower than the arrangement height of the trigger end 311 and touches the trigger end 311, the proximity detection mechanism 3 sends an emergency stop signal to the controller, and the controller controls the linear motor to stop urgently;

[0092] S2. Set up anti-collision guide: Arrange anti-collision guide lifting assembly 2 on the frame 1 at the starting end of the conveying direction of the linear motor 7; when the operating height of the slide 8 is lower than the top surface of the linear motor 7, the guide plate structure 23 is used to guide and lift the height of the slide 8 to prevent the slide 8 from colliding with the linear motor 7;

[0093] S3: Set up a distance adjustment mechanism between the slide 8 and the linear motor 7: arrange the lifting adjustment mechanism 4 on the frame 1 below the linear motor 7; after the controller receives the emergency stop signal sent by the too-close detection mechanism 3, it sends a command signal to the lifting adjustment mechanism 4 to lower the height of the linear motor 7. The lifting adjustment mechanism 4 controls the linear motor 7 to descend to avoid the running slide 8 to prevent collision.

[0094] In some embodiments, the following fault tolerance measures are also included:

[0095] S4: A distance measuring sensor assembly 6 for monitoring the distance between the slide 8 and the linear motor 7 is provided below the slide 8 to monitor the distance between the slide 8 and the linear motor 7 and the tilt angle of the slide in real time;

[0096] S5: Set up a flippable mounting frame 5 to construct a flip maintenance structure: during maintenance, flip the mounting frame 5 downward to rotate the lifting adjustment mechanism 4 and the detection plate mounting bracket 21 installed on the mounting frame 5 out of the rack 1, and construct a maintenance work area under the corresponding rack 1.

[0097] Specifically, by Figures 3 to 12As shown, during installation, the linear motor 7 is fixedly mounted on the lifting frame 47, and the frame 1 and the entire device are installed on the running track 9 and between the two corresponding guide rails. The preliminary installation and debugging contents include: installation and debugging of the anti-collision guide lifting component 2 and the too-close detection mechanism 3, installation and debugging of the lifting adjustment mechanism 4, and connecting the mounting frame 5 and the frame 1 with the fixing screws 52. The height position of the linear motor 7 is adjusted to a rough position, and then a plain plate is placed on the linear motor 7 so that the distance from the measuring point of the distance sensor 61 to the upper surface of the linear motor 7 (i.e., the lower surface of the plain plate) can be detected by the distance sensor 61. The controller compares the detected distance data with the set threshold value to adjust the linear motor 7 to a precise position. The judgment method can be as follows:

[0098] Example 1:

[0099] ①Altitude judgment and adjustment: Under normal circumstances,

[0100] like The linear motor automatically adjusts the rise

[0101] like The linear motor is automatically adjusted to descend

[0102] like or The alarm will remind the installer to readjust

[0103] ② Tilt judgment:

[0104] like or The alarm will remind the installer to adjust

[0105] a, b, c, d, e, and f are set safety values.

[0106] Once all the above steps are completed, the preliminary debugging is complete.

[0107] During normal operation, the distance sensor 61 continues to work to detect the distance between the slide 8 and the linear motor 7. During this process, the guide wheel 81 may wear, the guide rail 91 may be compressed and deformed, and the slide 8 itself may be deformed, which may cause the distance between the slide 8 and the linear motor 7 to become closer, or the slide 8 may tilt. When the distance between the slide 8 and the linear motor 7 is too close, the drive mode is one, and the slide and the linear motor may collide; when the slide is tilted, the metal plate (motor) used for inductive drive may collide with the linear motor in the drive mode. Therefore, the distance detection between the slide 8 and the linear motor 7 by the distance sensor 61 can provide early warning and realize automatic adjustment within a certain range. The specific implementation method is:

[0108] Example 2:

[0109] ①Altitude judgment and adjustment: Under normal circumstances,

[0110] like The linear motor automatically adjusts the rise

[0111] like The linear motor is automatically adjusted to descend

[0112] like or Then the alarm stops and waits for maintenance

[0113] a1, b1, e1, and f1 are set safety values.

[0114] ② Tilt judgment and alarm:

[0115] like or Then the alarm will sound and the car will stop and wait for maintenance.

[0116] In particular, a distance measuring sensor 61 can be added to the track along the direction of movement of the slide and located at the front end of the driving assembly device proposed by the present invention, such as Figure 3 As shown, the distance measuring sensor 61 is placed in front to monitor in advance, so as to make adaptive lifting height adjustment in real time.

[0117] In order to prevent the distance measuring sensor 61 from not feeding back the fault information in time, an over-close detection mechanism 3 is added to detect and trigger when the distance between the slide 8 and the linear motor 7 is too close, and a mechanical structure detection mode is adopted, wherein the arc surface of the arc guide plate 221 at the top of the anti-collision guide assembly 22 extends and smoothly transitions with the arc surface of the arc guide plate 1 211 of the detection plate mounting bracket 21, the height α of the top of the detection plate 31 is slightly higher than the highest point β of the arc surface of the arc guide plate 1 211, and the arc surface of the arc guide plate 1 211 is slightly higher than the highest point β of the arc surface of the arc guide plate 1 211. The highest point β is slightly higher than the top surface γ of the linear motor. When the distance between the slide 8 and the linear motor 7 is too close, the slide 8 will stick to the arc surface of the arc guide plate 2 221 and the arc guide plate 1 211. During this sticking process, the detection plate 31 will rotate around the detection plate shaft 312, causing the pressure state of the emergency trigger switch 32 to change. The emergency is triggered, and the controller will automatically adjust the linear motor 7 to the maximum descent, thereby increasing the distance between the slide 8 and the linear motor 7 to avoid damage to the linear motor 7, and at the same time, an alarm will be sounded to stop the vehicle and wait for maintenance.

[0118] During the maintenance process, the maintenance personnel loosen the fixing screw 52 and move the other end of the mounting frame 5, so that the mounting frame 5 and the parts installed on the mounting frame 5 rotate as a whole around the rotation axis, so that the mounting frame 5 and the parts installed on the mounting frame 5 rotate and move out as a whole. After being moved out, it is convenient for maintenance. After the maintenance is completed, it is slowly released. Due to the action of the gas spring 51, it can be quickly restored. The fixing screw 52 is tightened to complete the maintenance work. Figure 13 A schematic diagram of the working process of the high fault tolerance linear motor drive assembly device of the present invention is given.

[0119] In the description of this specification, the reference terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" mean that the specific features, structures, materials, or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described can be combined in any appropriate manner in any one or more embodiments or examples. In addition, those skilled in the art can combine and combine different embodiments or examples described in this specification.

[0120] Although the embodiments of the present invention have been shown and described above, it will be understood that the above embodiments are illustrative and are not to be construed as limitations on the present invention. A person skilled in the art may change, modify, replace and modify the above embodiments within the scope of the present invention.

Claims

1. A high-tolerance linear motor drive assembly device, wherein a linear motor (7) is connected to a slide (8) to drive the slide (8) to move and transport above the linear motor (7); characterized in that: include: A frame (1), the frame (1) being arranged below the linear motor (7); An anti-collision guide lifting assembly (2), the anti-collision guide lifting assembly (2) being mounted on the frame (1) and arranged corresponding to the starting end of the conveying direction of the linear motor (7); a guide plate structure (23) being provided on the top of the anti-collision guide lifting assembly (2), the guide plate structure (23) being configured to slide against and guide the slide (8) to be lifted to the top of the corresponding linear motor (7) when the operating height of the slide (8) is lower than its preset height; An over-proximity detection mechanism (3), the over-proximity detection mechanism (3) being mounted on the frame (1); a trigger end (311) of the over-proximity detection mechanism (3) being arranged above the guide plate structure (23); and the slide (8) being able to abut against the trigger end (311) when sliding over the upper surface of the guide plate structure (23), so that the over-proximity detection mechanism (3) issues an emergency stop signal; A lifting adjustment mechanism (4), the lifting adjustment mechanism (4) is mounted on the frame (1) and is located below the linear motor (7), and a lifting end of the lifting adjustment mechanism (4) is connected to the linear motor (7) in a transmission manner to perform lifting and lowering adjustment on the linear motor (7); a controller electrically connected to the over-proximity detection mechanism (3) and the lifting and adjusting mechanism (4) so ​​as to control the linear motor (7) to descend and avoid the slide (8) via the lifting and adjusting mechanism (4) upon receiving an emergency stop signal from the over-proximity detection mechanism (3); The anti-collision guide lifting assembly (2) includes a detection plate mounting bracket (21) arranged corresponding to the starting end of the conveying direction of the linear motor (7); an arc-shaped guide plate (211) is provided on the top of the detection plate mounting bracket (21); the top surface of the arc-shaped guide plate (211) near one end of the linear motor (7) is higher than the top surface of the linear motor (7), and can guide and gradually lift the running slide (8); The over-proximity detection mechanism (3) includes a detection plate (31) and an emergency trigger switch (32); the middle portion of the detection plate (31) is rotatably mounted on the detection plate mounting bracket (21); the top end of the detection plate (31) extends upward to above the arc-shaped guide plate (211) to form a trigger end (311), and the slide (8) can abut against and push the trigger end (311) to drive the detection plate (31) to rotate; the detection plate (31) is transmission-connected to the emergency trigger switch (32) so as to turn on the emergency trigger switch (32) when rotating; the emergency trigger switch (32) is electrically connected to the controller to send an emergency stop signal; The anti-collision guide lifting assembly (2) further includes an anti-collision guide assembly (22); the anti-collision guide assembly (22) is mounted on the frame (1) and is located on a side of the detection plate mounting bracket (21) away from the linear motor (7), and an arc-shaped guide plate 2 (221) is provided on the top of the anti-collision guide assembly (22); the arc-shaped guide plate 2 (221) and the arc-shaped guide plate 1 (211) are smoothly transitioned and connected to form the arc-shaped guide plate structure (23) together.

2. A high fault tolerance linear motor drive assembly device according to claim 1, characterized in that: The invention also includes a mounting frame (5); a mounting hole (11) is provided at the upper end of the frame (1); the mounting frame (5) blocks the mounting hole (11) and one end of the mounting frame is hinged to the frame (1), and the other end of the mounting frame is detachably connected to the frame (1); the detection plate mounting bracket (21) and the lifting adjustment mechanism (4) are both mounted on the upper end of the mounting frame (5); the mounting frame (5) can be flipped open toward the bottom of the frame (1) to construct a maintenance operation area corresponding to the bottom of the frame (1).

3. A high fault tolerance linear motor drive assembly device according to claim 2, characterized in that: A gas spring (51) is installed at the other end of the mounting frame (5) and is capable of driving the mounting frame (5) to elastically return to its flipped open state.

4. A high fault tolerance linear motor drive assembly device according to claim 2, characterized in that: The lifting adjustment mechanism (4) comprises a driving motor (41), a main transmission wheel (42), a secondary transmission wheel (43), a transmission structure fixing frame (44), a transmission screw (45), a transmission screw sleeve (46) and a lifting frame (47); the driving motor (41) and the transmission structure fixing frame (44) are both mounted on the bottom end of the mounting frame (5); the main transmission wheel (42) is coaxially sleeved on the rotating shaft of the driving motor (41); one end of the transmission screw (45) is rotatably connected to the transmission structure fixing frame (44); the secondary transmission wheel (43) is coaxially sleeved on the transmission screw (45) and is transmission-engaged with the main transmission wheel (42); the other end of the transmission screw (45) movably passes through the mounting frame (5) and is threadedly connected to the transmission screw sleeve (46); the lifting frame (47) is fixed on the transmission screw sleeve (46); and the linear motor (7) is mounted on the lifting frame (47).

5. A high fault tolerance linear motor drive assembly device according to claim 4, characterized in that: The auxiliary transmission wheel (43), the transmission screw (45) and the transmission screw sleeve (46) are all multiple, The plurality of auxiliary transmission wheels (43) are evenly distributed along the circumference of the main transmission wheel (42) and are all connected to the main transmission wheel (42) in a transmission meshing manner; one end of the plurality of transmission screws (45) is rotatably connected to the transmission structure fixing frame (44), and the plurality of auxiliary transmission wheels (43) are coaxially sleeved on the plurality of transmission screws (45) in a one-to-one correspondence; the other ends of the plurality of transmission screws (45) are movably passed through the mounting frame (5) and are connected to the plurality of transmission screw sleeves (46) in a one-to-one correspondence in threaded transmission; and the plurality of transmission screw sleeves (46) are fixedly connected to the lifting frame (47).

6. A high fault tolerance linear motor drive assembly device according to claim 1, characterized in that: It also includes a distance sensor assembly (6), which is arranged below the slide (8) to monitor the operating height and tilt angle of the slide (8), and the distance sensor assembly (6) is electrically connected to the controller.

7. A fault-tolerance method for a high-fault-tolerance linear motor drive assembly according to any one of claims 1 to 6, characterized in that: The following fault tolerance measures are included: S1: Setting a too-close distance detection and triggering mechanical switch between the slide (8) and the linear motor (7): installing an too-close detection mechanism (3) on the frame (1), and making the arrangement height of the trigger end (311) of the too-close detection mechanism (3) lower than the normal operating height of the slide (8) and higher than the top surface height of the linear motor (7); judging whether the distance between the slide (8) and the linear motor (7) is too close by whether the running slide (8) touches the trigger end (311); when the running height of the slide (8) is lower than the arrangement height of the trigger end (311) and touches the trigger end (311), the too-close detection mechanism (3) sends an emergency stop signal to the controller, and the controller controls the linear motor to stop urgently; S2. Setting an anti-collision guide: arranging an anti-collision guide lifting component (2) on the frame (1) at the starting end of the conveying direction of the linear motor (7); when the operating height of the slide (8) is lower than the top surface of the linear motor (7), the guide plate structure (23) is used to guide and lift the height of the slide (8) to prevent the slide (8) from colliding with the linear motor (7); S3: Setting a distance adjustment mechanism between the slide (8) and the linear motor (7): arranging a lifting adjustment mechanism (4) below the corresponding linear motor (7) on the frame (1); after receiving an emergency stop signal from the proximity detection mechanism (3), the controller sends a command signal to the lifting adjustment mechanism (4) to lower the height of the linear motor (7), and the lifting adjustment mechanism (4) controls the linear motor (7) to descend to avoid the running slide (8) to prevent a collision.

8. The fault-tolerance method of the high-fault-tolerance linear motor drive assembly according to claim 7, characterized in that: The following fault tolerance measures are also included: S4: a distance measuring sensor assembly (6) for monitoring the distance between the slide (8) and the linear motor (7) is provided below the slide (8), and the distance between the slide (8) and the linear motor (7) and the tilt angle of the slide are monitored in real time; S5: A reversible mounting frame (5) is provided to construct a reversible maintenance structure: during maintenance, the mounting frame (5) is flipped downward to rotate the lifting adjustment mechanism (4) and the detection plate mounting bracket (21) mounted on the mounting frame (5) out of the frame (1), and a maintenance operation area is constructed below the corresponding frame (1).

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