Fully-closed linear motor module

Abstract

The invention relates to the field of closed motors, in particular to a fully-closed linear motor module. Comprising a base, a power source is arranged at one end of the base, the output end of the power source is fixedly connected with a sliding table, the sliding table is slidably connected with the base, a sealing cover is fixedly connected with the upper end of the base, a step table is formed on the sealing cover, and a steel belt is located at the upper end of the sealing cover and slidably connected with the base. The two connecting rods are fixedly connected with the two step tables and communicate with the input end of an external pump; the two sealing mechanisms are connected with the two stepped tables correspondingly and comprise two rubber concave tables, two sealing strips, a plurality of rubber frames and a plurality of air sealing mechanisms, and the air sealing mechanisms are arranged at the lower ends of the rubber frames correspondingly and conduct negative pressure positioning on the steel belt; and the positioning mechanisms are connected with the air sealing mechanisms correspondingly and conduct auxiliary positioning on the sealing strips. According to the device, the sealing cover is designed in a fully-closed mode through negative pressure sealing and mechanical locking, and the sealing effect of the motor module is improved.

Description

Technical Field

[0001] The present invention relates to the field of enclosed motors, and in particular to a fully enclosed linear motor module. Background Art

[0002] In industrial automation production, linear motor modules, as key components for achieving precise linear motion, are widely used in many fields such as electronic manufacturing, semiconductor processing, and medical devices. However, traditional linear motor modules have many deficiencies in terms of sealing protection of the operating environment.

[0003] Common linear motor module sealing structures are simple, and usually use magnetic positioning to position the dustproof steel belt. However, with the passage of time and frequent adsorption and separation operations, the magnetic force of the magnetic parts will gradually decay. Especially in high-temperature environments, the magnetic properties of magnetic materials degrade faster. For example, in high-temperature workshops in the metallurgical industry, after months of continuous operation, the adsorption force of the magnetic parts on the steel belt is significantly weakened, and it is impossible to ensure that the steel belt fits tightly, affecting the sealing of the module. In an environment with liquids, such as an automated production line in a food processing workshop, if the linear motor module is not well sealed, once the liquid enters the interior, it will corrode metal parts and destroy the insulation performance of the motor, causing serious safety hazards.

[0004] In addition, existing sealing methods often fail to ensure the module's movement flexibility while ensuring tightness. For example, although some sealing structures can block some impurities, they will increase the resistance of the slide movement, resulting in increased motor energy consumption and reduced movement accuracy, which cannot meet the needs of high-precision production.

[0005] With the continuous improvement of various industries' requirements for production environment and the emphasis on equipment operation stability and reliability, it is urgent to develop a fully enclosed linear motor module that can ensure good motion performance. Summary of the invention

[0006] Based on this, it is necessary to provide a fully enclosed linear motor module to address the existing technical problems.

[0007] In order to solve the problems of the prior art, the technical solution adopted by the present invention is: A fully enclosed linear motor module comprises a base, a power source is arranged at one end of the base, an output end of the power source is fixedly connected to a slide, the slide is slidably connected to the base, a sealing cover is fixedly connected to an upper end of the base, a steel belt is located at an upper end of the sealing cover and is slidably connected to the base, and further comprises: The upper end of the sealing cover is formed with stepped platforms on one side thereof; Two squeezing rollers are arranged on one side of the slide table close to the steel belt and abut against the upper end of the steel belt; Two main air pipes are respectively fixedly connected to the two step platforms and communicated with the input end of the external pump; Two sealing mechanisms are connected to the two step platforms respectively, including two rubber concave platforms, two sealing strips, a plurality of rubber frames and a plurality of air sealing mechanisms. The two rubber concave platforms are arranged on both sides of the main air pipe. The lower ends of the two sealing strips are respectively against the two rubber concave platforms, and the upper ends are fixedly connected to the steel belt. A plurality of rubber frames are arranged in an array at equal intervals at the upper end of the main air pipe and are sealed and fixedly connected to the corresponding step platforms. A plurality of air sealing mechanisms are respectively arranged at the lower ends of the plurality of rubber frames and negative pressure positioning is performed on the steel belt. A plurality of positioning mechanisms are respectively arranged and connected with a plurality of air sealing mechanisms to assist in positioning the sealing strips.

[0008] Furthermore, an arc-shaped top platform is formed in the middle of the slide, and the two sides of the arc-shaped top platform are respectively slidably opposed to the corresponding sealing strips, and the middle part is slidably opposed to the steel belt, and the arc-shaped top platform is dynamically sealed to the sealing strip.

[0009] Furthermore, a wheel seat, a positioning seat, a plurality of extrusion springs and a plurality of extrusion pins are respectively provided at the upper ends of the two extrusion rollers. The wheel seat is rotatably connected to both ends of the extrusion roller. The positioning seat is arranged above the wheel seat and fixedly connected to the slide. A plurality of extrusion pins are arranged in an array at equal intervals along the upper end of the wheel seat. The lower end of the extrusion pin is fixedly connected to the wheel seat, and the upper end is slidably connected to the positioning seat. A plurality of extrusion springs are respectively sleeved on the outside of the plurality of extrusion pins. The upper end of the extrusion spring is fixedly connected to the positioning seat, and the lower end is fixedly connected to the wheel seat.

[0010] Furthermore, the air sealing mechanism also includes two air guide pipes, two auxiliary air pipes and two lifting pipes. The two lifting pipes are respectively slidably connected to the step platforms. The upper ends of the lifting pipes are formed with a number of air holes in an array at equal angles along the circumferential direction. One ends of the two auxiliary air pipes are respectively connected to the lower ends of the two lifting pipes, and the other ends of the two auxiliary air pipes are respectively slidably connected to the two air guide pipes. The upper ends of the two air guide pipes are respectively connected to the main air pipes.

[0011] Furthermore, the air sealing mechanism also includes two dust covers, which are respectively arranged coaxially with the two lifting pipes and fixedly connected to the upper end of the step platform.

[0012] Furthermore, the air sealing mechanism also includes two downward pressure pins, two first racks, two reversing gears and two second racks. The two downward pressure pins are respectively slidably connected to the corresponding rubber recesses, the two first racks are respectively fixedly connected to the two downward pressure pins, the two reversing gears are respectively rotatably arranged at the lower end of the step platform through gear seats, the two reversing gears are respectively meshed with the two first racks, the two second racks are respectively meshed with the other sides of the two reversing gears, the two second racks are respectively fixedly connected to the two lifting pipes, and positioning grooves are respectively formed on both sides of the lower ends of the two first racks.

[0013] Furthermore, the air sealing mechanism also includes a downward push plate and a reset spring. The downward push plate is fixedly connected to the downward push pin shaft. The reset spring is coaxially sleeved on the outside of the downward push pin shaft. The upper end of the reset spring is fixedly connected to the rubber concave platform, and the lower end is fixedly connected to the downward push plate.

[0014] Furthermore, the positioning mechanism also includes a bearing seat, four tightening rods, four tightening supports, four tightening springs and four tightening slides. The bearing seat is fixedly connected to the inner wall of the sealing cover, two tightening slides are respectively arranged under each first rack, the tightening slide is fixedly connected to the upper end of the bearing seat, the four tightening supports are respectively fixedly connected to the four tightening slides, the four tightening rods are respectively slidably connected to the upper ends of the four tightening supports, the four tightening springs are respectively arranged on one side of the four tightening supports close to the first rack, the four tightening springs are respectively sleeved on the outside of the four tightening rods, one end of the tightening spring is fixedly connected to the tightening rod, and the other end is fixedly connected to the tightening support, and the end of the tightening rod close to the first rack is inserted into the corresponding positioning groove when the first rack moves downward.

[0015] Furthermore, the positioning mechanism also includes four locking screw sleeves, two bidirectional screws, two secondary pulleys and two main pulleys. The main pulley is rotatably arranged at the upper end of the bearing seat through a wheel seat. The two secondary pulleys are respectively rotatably connected to the two wheel seats and are connected to the main pulley through belts. The two bidirectional screws are respectively coaxially fixed to the two secondary pulleys. Two locking screw sleeves are respectively arranged at both ends of each bidirectional screw. The locking screw sleeves are threadedly connected to the bidirectional screw, and the locking screw sleeves are fixedly connected to the locking support.

[0016] Furthermore, the positioning mechanism also includes a motor, a power shaft, two first bevel teeth and two second bevel teeth. The motor is fixedly arranged at the upper end of the bearing seat, the power shaft is coaxially fixedly connected to the output end of the motor, the two first bevel teeth are coaxially fixedly connected to the power shaft, and the two second bevel teeth are respectively meshed with the two first bevel teeth and coaxially fixedly connected to the corresponding main pulley.

[0017] Compared with the prior art, the present invention has the following beneficial effects: Firstly, the device builds a fully enclosed operating environment through the coordinated action of a series of components such as the sealing cover, steel belt, sealing strip and air sealing mechanism. The main air pipe is connected to the external pump, and the steel belt is positioned by negative pressure. At the same time, the rubber concave platform and sealing strip are closely matched to effectively prevent the intrusion of dust, impurities and liquids, ensuring that the internal key components are protected from the influence of the external environment, which greatly improves the durability and reliability of the device. Second: The dust cover in the air sealing mechanism used in this device can block and concentrate the dust that falls into the rubber frame, avoid clogging of the main air pipe, facilitate centralized treatment of dust during maintenance, reduce maintenance costs and maintenance difficulties, and improve the maintainability of the equipment; Third: Compared with the traditional method of only using magnetic positioning, the positioning mechanism in this device mechanically positions the first rack by pressing the plug rod, and combined with the negative pressure positioning of the air sealing mechanism, it doubly guarantees the stable positioning of the steel belt. At the same time, the design of the downward pressure pin and the reset spring allows the sealing strip to automatically reset after leaving the rubber recess, preparing for the next sealing action, ensuring the continuity and stability of the device operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 is a schematic diagram of the three-dimensional structure of an embodiment; Figure 2 is a truncated view of the three-dimensional structure of the embodiment; Figure 3 is a schematic diagram of a three-dimensional structure decomposition of an embodiment; Figure 4 yes Figure 3 A magnified view of the structure at center; Figure 5 yes Figure 3 A magnified view of the structure at B in the middle; Figure 6 Schematic diagram of the three-dimensional structure of the sealing mechanism and the positioning mechanism in the embodiment; Figure 7 is a schematic diagram of the three-dimensional structure of the sealing mechanism and the positioning mechanism in the embodiment from another angle; Figure 8 yes Figure 7 A magnified view of the structure at C in the middle; Fig. 9 is a front view of the sealing mechanism in the embodiment; Fig.10 is a front view of a half-section of the sealing mechanism in the embodiment; Fig.11 is a three-dimensional half-section view of the sealing mechanism in the embodiment; Fig.12 yes Fig.11 Enlarged view of the structure at point D in the middle.

[0019] The numbers in the figure are: 1. Base; 2. Power source; 4. Slide; 5. Arc top platform; 6. Extrusion roller; 7. Wheel seat; 8. Extrusion spring; 9. Extrusion pin; 10. Positioning seat; 11. Step platform; 12. Sealing cover; 13. Steel belt; 14. Sealing strip; 15. Main air pipe; 16. Sealing mechanism; 17. Rubber concave platform; 18. Rubber frame; 19. Air sealing mechanism; 20. Air guide pipe; 21. Auxiliary air pipe; 22. Lifting pipe; 23. Air hole; 24. Dust cover; 25. Press down the pin; 26, press down the push plate; 27, reset tension spring; 28, first rack; 29, positioning groove; 30, reversing gear; 31, second rack; 33, positioning mechanism; 34, bearing seat; 35, motor; 36, first bevel gear; 37, second bevel gear; 38, power shaft; 39, tightening rod; 40, tightening support; 41, tightening spring; 43, tightening slide; 44, tightening screw sleeve; 45, bidirectional screw; 46, secondary pulley; 47, primary pulley. DETAILED DESCRIPTION

[0020] In order to further understand the features, technical means, specific objectives and functions of the present invention, the present invention is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0021] refer to Figures 1 to 12 A fully enclosed linear motor module includes a base 1, a power source 2 is provided at one end of the base 1, an output end of the power source 2 is fixedly connected to a slide 4, the slide 4 is slidably connected to the base 1, a sealing cover 12 is fixedly connected to the upper end of the base 1, a steel belt 13 is located at the upper end of the sealing cover 12 and is slidably connected to the base 1, and also includes: The upper end of the sealing cover 12 is formed with a stepped platform 11 (such as Figure 5 shown); Two squeezing rollers 6 are arranged on one side of the slide 4 close to the steel belt 13 and abut against the upper end of the steel belt 13; Two main air pipes 15 (such as Figure 6 As shown), they are respectively fixedly connected to the two step platforms 11 and communicated with the input end of the external pump; Two sealing mechanisms 16 are connected to the two step platforms 11 respectively, and include two rubber concave platforms 17, two sealing strips 14, a plurality of rubber frames 18 and a plurality of air sealing mechanisms 19. The two rubber concave platforms 17 are arranged on both sides of the main air pipe 15. The lower ends of the two sealing strips 14 are respectively against the two rubber concave platforms 17, and the upper ends are fixedly connected to the steel belt 13. A plurality of rubber frames 18 are arranged in an array at equal intervals at the upper end of the main air pipe 15 and are sealed and fixedly connected to the corresponding step platforms 11. A plurality of air sealing mechanisms 19 are respectively arranged at the lower ends of the plurality of rubber frames 18 and perform negative pressure positioning on the steel belt 13. A plurality of positioning mechanisms 33 are respectively connected to a plurality of air sealing mechanisms 19 and assist in positioning the sealing strip 14 .

[0022] When the device is in operation, the power source 2 starts and drives the slide 4 to make linear reciprocating motion along the base 1 (the power source 2 is a linear motor, and there is no need for an additional device to convert the rotational motion into linear motion, and the positioning accuracy is high, which can eliminate the positioning error caused by the intermediate link). During the movement of the slide 4, the extrusion roller 6 is always elastically pressed against the upper end of the steel belt 13, so that the steel belt 13 drives the sealing strip 14 to move. When the slide 4 moves to different positions, the steel belt 13 will deform relative to the slide 4 and be fastened to the upper end of the slide 4 to prevent impurities from entering. At the same time, as the steel belt 13 contacts and separates from the rubber concave platform 17, the air sealing mechanism 19 and the positioning mechanism 33 work together. When the steel belt 13 contacts the rubber concave platform 17, the air sealing mechanism 19 realizes the negative pressure positioning of the steel belt 13 through the linkage of a series of components, and at the same time, the positioning mechanism 33 performs mechanical auxiliary positioning on the sealing strip 14 to achieve a double guarantee of the sealing effect. The entire device achieves a fully enclosed operating environment through the close cooperation of various components, effectively preventing the influence of dust, impurities, etc. on the internal structure, and ensuring the stable operation and service life of the linear motor module.

[0023] In order to ensure that the interior of the sealing cover 12 remains sealed when the steel belt 13 drives the slide 4 to move, the following features are specifically provided: An arc-shaped top platform 5 is formed in the middle of the slide 4. The two sides of the arc-shaped top platform 5 slide against the corresponding sealing strips 14 respectively, and the middle part slides against the steel belt 13. The arc-shaped top platform 5 is dynamically sealed with the sealing strip 14. The arc-shaped top platform 5 plays a key sealing auxiliary role during the operation of the device. When the slide 4 moves, the arc-shaped top platform 5 always maintains close contact with the sealing strip 14. Its unique arc design can adapt to the deformation of the sealing strip 14 at different positions, further enhancing the sealing effect and preventing dust, impurities, etc. from entering the inside of the sealing cover 12 through the gap between the slide 4 and the sealing strip 14.

[0024] In order to ensure that the squeezing roller 6 can elastically press against the upper end of the steel belt 13, and ensure that the steel belt 13 can drive the sealing strip 14 to have a tendency to move downward, so that when the steel belt 13 is separated from the slide 4, the steel belt 13 will push the sealing strip 14 to press against the corresponding rubber concave stage 17, the following features are specifically provided: The upper ends of the two squeezing rollers 6 are respectively provided with a wheel seat 7, a positioning seat 10, a plurality of squeezing springs 8 and a plurality of squeezing pins 9, the wheel seat 7 is rotatably connected to both ends of the squeezing roller 6, the positioning seat 10 is arranged above the wheel seat 7 and is fixedly connected to the slide 4, a plurality of squeezing pins 9 are arranged in an array at equal intervals along the upper end of the wheel seat 7, the lower end of the squeezing pin 9 is fixedly connected to the wheel seat 7, and the upper end is slidably connected to the positioning seat 10, a plurality of squeezing springs 8 are respectively sleeved on the outside of the plurality of squeezing pins 9, the upper end of the squeezing spring 8 is fixedly connected to the positioning seat 10, and the lower end is fixedly connected to the wheel seat 7. The squeezing spring 8 can continuously provide downward pressure to the squeezing roller 6, so that the squeezing roller 6 is always elastically pressed against the upper end of the steel belt 13. When the slide 4 moves, the squeezing roller 6 can roll following the deformation of the steel belt 13 (the steel belt 13 will be lifted up by the slide 4 when the slide 4 moves), while maintaining pressure on the steel belt 13 to ensure that the steel belt 13 can drive the sealing strip 14 to have a downward movement trend. When the steel belt 13 is separated from the slide 4, the steel belt 13 will push the sealing strip 14 to tightly contact the corresponding rubber concave platform 17 to maintain a good sealing state.

[0025] In order to realize that when the upper ends of the steel belt 13 and the rubber frame 18 abut against each other, the main air pipe 15 can realize negative pressure positioning of the lower end of the steel belt 13 through the air sealing mechanism 19, the following features are specifically provided: The air sealing mechanism 19 further includes two air guide pipes 20, two auxiliary air pipes 21 and two lifting pipes 22. The two lifting pipes 22 are respectively connected to the step platform 11 in a sliding manner. The upper ends of the lifting pipes 22 are formed with a plurality of air holes 23 (such as Fig.12 As shown in the figure, one end of the two auxiliary air pipes 21 is respectively connected to the lower end of the two lifting pipes 22, and the other end of the two auxiliary air pipes 21 is respectively connected to the two air guide pipes 20 in a sliding manner, and the upper ends of the two air guide pipes 20 are respectively connected to the main air pipe 15. When the upper ends of the steel belt 13 and the rubber frame 18 are against each other, the external pump generates suction through the main air pipe 15, and the gas flows into the auxiliary air pipe 21 and the air guide pipe 20 through the air holes 23 of the lifting pipe 22 in turn, and finally is drawn out through the main air pipe 15, thereby forming a negative pressure at the lower end of the steel belt 13, realizing negative pressure positioning of the steel belt 13, and further enhancing the sealing effect.

[0026] In order to prevent some dust from falling into the rubber frame 18 and causing blockage inside the main air pipe 15 when being drawn out through the main air pipe 15, and to make this part of dust concentrate inside the rubber frame 18 so as to facilitate centralized treatment of this part of dust during maintenance, the following features are also specifically provided: The air sealing mechanism 19 further includes two dust covers 24. The two dust covers 24 (such as Fig.12The rubber frame 18 is a rubber frame 18 that is provided with two jacking pipes 22 and is fixedly connected to the upper end of the step platform 11. The dust cover 24 blocks dust inside the rubber frame 18, so that the dust is concentrated inside the rubber frame 18, which is convenient for centralized treatment of the dust during the inspection process, thereby ensuring the normal operation of the device and the convenience of maintenance.

[0027] In order to enable the corresponding lifting pipe 22 to move upward when the sealing strip 14 and the rubber concave platform 17 are in contact, so that the air hole 23 can extend from the stepped platform 11, and ensure that the main air pipe 15 can extract the gas through the air guide pipe 20, the auxiliary air pipe 21 and the lifting pipe 22, the following features are also specifically provided: The air sealing mechanism 19 further includes two pressing pins 25, two first racks 28, two reversing gears 30 and two second racks 31. The two pressing pins 25 are respectively slidably connected to the corresponding rubber concave platforms 17 (such as Fig. 9 As shown in the figure, the two first racks 28 are respectively connected to the two pressing pins 25, and the two reversing gears 30 are respectively rotatably arranged at the lower end of the step platform 11 through the gear seat. The two reversing gears 30 are respectively meshed with the two first racks 28, and the two second racks 31 are respectively meshed with the other sides of the two reversing gears 30. The two second racks 31 are respectively connected to the two jacking pipes 22. The two sides of the lower ends of the two first racks 28 are respectively formed with positioning grooves 29 (as shown in the figure). Figure 8 As shown). When the sealing strip 14 contacts the rubber concave platform 17, the movement of the sealing strip 14 drives the pressing pin 25 to move downward, and the pressing pin 25 drives the first rack 28 to move downward, and the first rack 28 drives the second rack 31 to move upward through the reversing gear 30, thereby causing the lifting pipe 22 to move upward, and the air hole 23 in the lifting pipe 22 extends from the stepped platform 11. At this time, the main air pipe 15 can extract the gas through the air guide pipe 20, the auxiliary air pipe 21 and the lifting pipe 22 to achieve negative pressure positioning.

[0028] In order to facilitate the downward pressing pin 25 to automatically reset upward after the sealing strip 14 leaves the rubber concave platform 17, the following features are also provided: The air sealing mechanism 19 further includes a push plate 26 and a return spring 27. The push plate 26 is fixedly connected to the push pin 25. The return spring 27 is coaxially sleeved on the outside of the push pin 25. The upper end of the return spring 27 is fixedly connected to the rubber concave platform 17, and the lower end is fixedly connected to the push plate 26. When the sealing strip 14 leaves the rubber concave platform 17, the return spring 27 will pull the push plate 26 upward, thereby driving the push pin 25 to return upward, and prepare for the next sealing action.

[0029] In order to mechanically position the first rack 28 after being pressed down, and then reinforce the steel belt 13 in cooperation with the negative pressure positioning, the following features are also specifically provided: The positioning mechanism 33 also includes a bearing seat 34, four abutting rods 39, four abutting supports 40, four abutting springs 41 and four abutting slides 43. The bearing seat 34 is fixedly connected to the inner wall of the sealing cover 12, and two abutting slides 43 (such as Figure 8 As shown in the figure, the pressing slide 43 is fixedly connected to the upper end of the bearing seat 34, the four pressing supports 40 are respectively fixedly connected to the four pressing slides 43, the four pressing rods 39 are respectively slidably connected to the upper ends of the four pressing supports 40, the four pressing springs 41 are respectively arranged on the side of the four pressing supports 40 close to the first rack 28, the four pressing springs 41 are respectively sleeved on the outside of the four pressing rods 39, one end of the pressing spring 41 is fixedly connected to the pressing rod 39, and the other end is fixedly connected to the pressing support 40, and the end of the pressing rod 39 close to the first rack 28 is inserted into the corresponding positioning groove 29 when the first rack 28 moves downward. After the first rack 28 is pressed down, the pressing rod 39 can be inserted into the corresponding positioning groove 29 under the action of the pressing spring 41, so as to realize the mechanical positioning of the first rack 28, cooperate with the negative pressure positioning of the steel belt 13 by the air sealing mechanism 19, further strengthen the positioning effect of the steel belt 13, and ensure the stability of the seal.

[0030] In order to enable the pressing rod 39 to be pulled out from the corresponding positioning groove 29 when the steel belt 13 and the rubber frame 18 are separated, so that the pressing pin 25 can be moved upward and reset under the action of the reset spring 27, since the pressing support 40 needs to be moved away from the first rack 28 by external power at this time, the following features are also specifically provided: The positioning mechanism 33 also includes four locking screw sleeves 44, two bidirectional screws 45, two secondary pulleys 46 and two main pulleys 47. The main pulley 47 is rotatably arranged at the upper end of the bearing seat 34 through the wheel seat 7. The two secondary pulleys 46 are respectively rotatably connected to the two wheel seats 7 and are transmission connected to the main pulley 47 through belts. The two bidirectional screws 45 are respectively coaxially fixed to the two secondary pulleys 46. Two locking screw sleeves 44 are respectively arranged at both ends of each bidirectional screw 45. The locking screw sleeve 44 is threadedly connected to the bidirectional screw 45, and the locking screw sleeve 44 is fixed to the locking support 40. When it is necessary to remove the clamping rod 39 from the corresponding positioning groove 29, the primary pulley 47 drives the secondary pulley 46 to rotate via the belt, and the secondary pulley 46 drives the bidirectional screw 45 to rotate. The bidirectional screw 45 causes the clamping screw sleeve 44 to move along its own axial direction, thereby driving the clamping support 40 to move away from the first rack 28, so that the clamping rod 39 can be removed from the positioning groove 29.

[0031] In order to supplement the specific structure of the external power source and provide power for the rotation of the main pulley 47, the following features are also specifically provided: The positioning mechanism 33 also includes a motor 35, a power shaft 38, two first bevel teeth 36 and two second bevel teeth 37. The motor 35 is fixedly arranged at the upper end of the bearing seat 34. The power shaft 38 is coaxially fixedly connected to the output end of the motor 35. The two first bevel teeth 36 are coaxially fixedly connected to the power shaft 38 respectively. The two second bevel teeth 37 are respectively meshed with the two first bevel teeth 36 and coaxially fixedly connected to the corresponding main pulley 47. The motor 35 is used as an external power source. After the motor 35 is started, the two first bevel teeth 36 are driven to rotate through the power shaft 38. The first bevel teeth 36 drive the second bevel teeth 37 to rotate through meshing. The second bevel teeth 37 then drive the main pulley 47 to rotate, providing power for the rotation of the main pulley 47, and realizing a series of actions such as the withdrawal and resetting of the tight insertion rod 39.

[0032] The working principle of this device is that after the power source 2 is started, it will drive the slide 4 to move linearly along the base 1 (the power source 2 is a linear motor, and there is no need for an additional device to convert the rotary motion into linear motion, and the positioning accuracy is high, which can eliminate the positioning error caused by the intermediate link). During the movement of the slide 4, the two extrusion rollers 6 arranged on one side close to the steel belt 13 are always elastically pressed against the upper end of the steel belt 13 under the coordinated action of the wheel seat 7, the positioning seat 10, the extrusion spring 8 and the extrusion pin 9. This allows the steel belt 13 to be stably deformed under the drive of the slide 4, and drives the sealing strip 14 connected to it to produce corresponding deformation, thereby realizing fully enclosed operation.

[0033] The stepped platform 11 at the upper end of the sealing cover 12 provides a key installation foundation for the entire sealing system. The main air pipe 15 is fixedly connected to the stepped platform 11 and is connected through the input end of an external pump to generate airflow. When the steel belt 13 moves to a position against the upper end of the rubber frame 18, the air sealing mechanism 19 begins to function. The gas in the main air pipe 15 enters the lifting pipe 22 through the air guide pipe 20 and the auxiliary air pipe 21, and the air hole 23 at the upper end of the lifting pipe 22 discharges the gas, forming a negative pressure at the lower end of the steel belt 13, thereby tightly adsorbing the steel belt 13 on the rubber frame 18, achieving negative pressure positioning, and further enhancing the sealing effect.

[0034] In this process, the dust cover 24 can effectively prevent dust from entering the main air pipe 15 and prevent the main air pipe 15 from being blocked. When the sealing strip 14 contacts the rubber concave platform 17, the movement of the sealing strip 14 will drive the first rack 28 to move downward through the pressing pin 25, and the first rack 28 will move the second rack 31 upward through the reversing gear 30, thereby pushing the lifting pipe 22 upward, so that the air hole 23 extends out of the stepped platform 11, ensuring that the gas can be discharged smoothly through the main air pipe 15. When the pressing pin 25 moves downward, the pressing push plate 26 moves accordingly, stretching the reset spring 27. When the sealing strip 14 leaves the rubber concave platform 17, the elastic force of the reset spring 27 will drive the pressing push plate 26 and the pressing pin 25 to reset upward.

[0035] The positioning mechanism 33 plays a role in strengthening the positioning in the entire device. When the first rack 28 moves downward, the abutting rod 39 is inserted into the positioning groove 29 at the lower end of the first rack 28 under the action of the abutting spring 41, and the first rack 28 is mechanically positioned, which is combined with the negative pressure positioning of the air sealing mechanism 19 to ensure the stable positioning of the steel belt 13. When it is necessary to remove the abutting rod 39 from the positioning groove 29, the motor 35 is started, and the first bevel tooth 36 is driven to rotate through the power shaft 38, and the first bevel tooth 36 is meshed with the second bevel tooth 37, thereby driving the main pulley 47 to rotate. The main pulley 47 drives the secondary pulley 46 to rotate through the belt, and the secondary pulley 46 drives the bidirectional screw 45 to rotate. The bidirectional screw 45 moves the abutting screw sleeve 44, and then drives the abutting support 40 to move in the direction away from the first rack 28, so that the abutting rod 39 is pulled out of the positioning groove 29.

[0036] In summary, the fully enclosed linear motor module realizes fully enclosed protection of the interior of the sealing cover 12 during the movement of the slide 4 through precise coordination between various components, effectively preventing the intrusion of external dust, impurities, etc., and ensuring the stable operation and working performance of the device.

[0037] The above embodiments only express one or several implementation modes of the present invention, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the present invention. It should be pointed out that, for a person of ordinary skill in the art, several modifications and improvements can be made without departing from the concept of the present invention, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the present invention patent shall be subject to the attached claims.

Claims

1. A fully enclosed linear motor module, comprising a base (1), a power source (2) being arranged at one end of the base (1), an output end of the power source (2) being fixedly connected to a slide table (4), the slide table (4) being slidably connected to the base (1), a sealing cover (12) being fixedly connected to an upper end of the base (1), a steel belt (13) being located at an upper end of the sealing cover (12) and being slidably connected to the base (1), characterized in that: Also includes: The sealing cover (12) has stepped platforms (11) formed on the sides close to the upper end thereof; Two squeezing rollers (6) are arranged on a side of the slide table (4) close to the steel belt (13) and abut against the upper end of the steel belt (13); Two main air pipes (15) are respectively fixedly connected to the two stepped platforms (11) and communicated with the input end of an external pump; Two sealing mechanisms (16) are respectively connected to the two step platforms (11), and include two rubber concave platforms (17), two sealing strips (14), a plurality of rubber frames (18) and a plurality of air sealing mechanisms (19). The two rubber concave platforms (17) are arranged on both sides of the main air pipe (15). The lower ends of the two sealing strips (14) are respectively abutted against the two rubber concave platforms (17), and the upper ends are fixedly connected to the steel belt (13). The plurality of rubber frames (18) are arranged in an array at equal intervals at the upper end of the main air pipe (15) and are sealed and fixedly connected to the corresponding step platforms (11). The plurality of air sealing mechanisms (19) are respectively arranged at the lower ends of the plurality of rubber frames (18) and perform negative pressure positioning on the steel belt (13). A plurality of positioning mechanisms (33) are respectively arranged and connected to the plurality of air sealing mechanisms (19) and assist in positioning the sealing strip (14).

2. A fully enclosed linear motor module according to claim 1, characterized in that: An arc-shaped top platform (5) is formed in the middle of the slide (4). The two sides of the arc-shaped top platform (5) are respectively slidably opposed to the corresponding sealing strips (14), and the middle part is slidably opposed to the steel belt (13). The arc-shaped top platform (5) is dynamically sealed to the sealing strip (14).

3. A fully enclosed linear motor module according to claim 1, characterized in that: The upper ends of the two extrusion rollers (6) are respectively provided with a wheel seat (7), a positioning seat (10), a plurality of extrusion springs (8) and a plurality of extrusion pins (9); the wheel seat (7) is rotatably connected to both ends of the extrusion roller (6); the positioning seat (10) is arranged above the wheel seat (7) and is fixedly connected to the slide table (4); the plurality of extrusion pins (9) are arranged in an array at equal intervals along the upper end of the wheel seat (7); the lower end of the extrusion pin (9) is fixedly connected to the wheel seat (7) and the upper end is slidably connected to the positioning seat (10); the plurality of extrusion springs (8) are respectively sleeved on the outside of the plurality of extrusion pins (9); the upper end of the extrusion spring (8) is fixedly connected to the positioning seat (10) and the lower end is fixedly connected to the wheel seat (7).

4. A fully enclosed linear motor module according to claim 1, characterized in that: The air sealing mechanism (19) further comprises two air guide pipes (20), two auxiliary air pipes (21) and two lifting pipes (22); the two lifting pipes (22) are respectively connected in a sliding manner to the step platform (11); the upper ends of the lifting pipes (22) are formed with a plurality of air holes (23) in an array at equal angles along a circumferential direction; one end of the two auxiliary air pipes (21) is respectively connected to the lower ends of the two lifting pipes (22); the other ends of the two auxiliary air pipes (21) are respectively connected in a sliding manner to the two air guide pipes (20); and the upper ends of the two air guide pipes (20) are respectively connected to the main air pipe (15).

5. A fully enclosed linear motor module according to claim 4, characterized in that: The air sealing mechanism (19) further comprises two dust covers (24), which are respectively arranged coaxially with the two lifting pipes (22) and fixedly connected to the upper end of the stepped platform (11).

6. A fully enclosed linear motor module according to claim 4, characterized in that: The air sealing mechanism (19) further comprises two pressing pins (25), two first racks (28), two reversing gears (30) and two second racks (31). The two pressing pins (25) are respectively slidably connected to the corresponding rubber concave platforms (17). The two first racks (28) are respectively fixedly connected to the two pressing pins (25). The two reversing gears (30) are respectively rotatably arranged at the lower end of the stepped platform (11) through a gear seat. The two reversing gears (30) are respectively meshed with the two first racks (28). The two second racks (31) are respectively meshed with the other sides of the two reversing gears (30). The two second racks (31) are respectively fixedly connected to the two lifting pipes (22). Positioning grooves (29) are respectively formed on both sides of the lower ends of the two first racks (28).

7. A fully enclosed linear motor module according to claim 6, characterized in that: The air sealing mechanism (19) further comprises a downward pressing push plate (26) and a return spring (27), wherein the downward pressing push plate (26) is fixedly connected to the downward pressing pin shaft (25), the return spring (27) is coaxially sleeved on the outside of the downward pressing pin shaft (25), the upper end of the return spring (27) is fixedly connected to the rubber concave platform (17), and the lower end is fixedly connected to the downward pressing push plate (26).

8. A fully enclosed linear motor module according to claim 6, characterized in that: The positioning mechanism (33) further comprises a bearing seat (34), four abutting rods (39), four abutting supports (40), four abutting springs (41) and four abutting slides (43); the bearing seat (34) is fixedly connected to the inner wall of the sealing cover (12); two abutting slides (43) are respectively arranged below each first rack (28); the abutting slides (43) are fixedly connected to the upper end of the bearing seat (34); the four abutting supports (40) are respectively fixedly connected to the four abutting slides (43); the four abutting rods (39) are respectively The four clamping springs (41) are respectively arranged on one side of the four clamping supports (40) close to the first rack (28), and the four clamping springs (41) are respectively sleeved on the outside of the four clamping rods (39). One end of the clamping spring (41) is fixedly connected to the clamping rod (39), and the other end is fixedly connected to the clamping support (40). One end of the clamping rod (39) close to the first rack (28) is inserted into the corresponding positioning groove (29) when the first rack (28) moves downward.

9. A fully enclosed linear motor module according to claim 8, characterized in that: The positioning mechanism (33) further comprises four abutting screw sleeves (44), two bidirectional screw rods (45), two secondary belt pulleys (46) and two main belt pulleys (47). The main belt pulley (47) is rotatably arranged at the upper end of the bearing seat (34) via a wheel seat (7). The two secondary belt pulleys (46) are respectively rotatably connected to the two wheel seats (7) and are transmission-connected to the main belt pulleys (47) via belts. The two bidirectional screw rods (45) are respectively coaxially fixedly connected to the two secondary belt pulleys (46). Two abutting screw sleeves (44) are respectively arranged at both ends of each bidirectional screw rod (45). The abutting screw sleeves (44) are threadedly connected to the bidirectional screw rod (45), and the abutting screw sleeves (44) are fixedly connected to the abutting support (40).

10. A fully enclosed linear motor module according to claim 9, characterized in that: The positioning mechanism (33) further comprises a motor (35), a power shaft (38), two first bevel teeth (36) and two second bevel teeth (37); the motor (35) is fixedly arranged at the upper end of the bearing seat (34); the power shaft (38) is coaxially fixedly connected to the output end of the motor (35); the two first bevel teeth (36) are coaxially fixedly connected to the power shaft (38); and the two second bevel teeth (37) are respectively meshed with the two first bevel teeth (36) and coaxially fixedly connected to the corresponding main pulley (47).

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