Permanent magnet motor direct connection structure for extruder

Abstract

This application relates to a direct-drive structure for a permanent magnet motor in an extruder, belonging to the field of extruder equipment. The direct-drive structure includes a motor body, a first coupling, a reducer, and a second coupling. The output end of the motor body is coaxially connected to the input end of the reducer via the first coupling, and the output end of the reducer is coaxially connected to the screw of the extruder via the second coupling. A liquid cooling system is installed beside the motor body, and a cooling channel is provided inside the motor body. The liquid cooling system is connected to the inlet end of the cooling channel via a first connecting pipe, and the liquid cooling system is connected to the outlet end of the cooling channel via a second connecting pipe. This technical solution eliminates complex transmission components, reduces energy consumption, saves production costs, lowers the failure rate, extends maintenance cycles, significantly reduces equipment downtime, and improves production efficiency.

Description

Technical Field

[0001] This application relates to the field of extruder equipment, and more particularly to a direct-drive structure for a permanent magnet motor in an extruder. Background Technology

[0002] A screw extruder is a device that uses the pressure and shearing force generated by the rotation of a screw to fully plasticize and uniformly mix materials, which are then formed through a die.

[0003] In related technologies, the utility model patent with publication number CN219903245U discloses a screw extruder in which the motor and the extruder screw are driven by a synchronous belt and synchronous pulley. Under long-term high-load operation, the transmission components such as belts not only suffer from large energy loss of the motor, but also are prone to wear, slippage and other failures, which will also lead to prolonged equipment downtime and affect production efficiency.

[0004] Since motors continuously generate heat during operation, existing motors typically have cooling channels for cooling. For example, utility model patent CN207530694U discloses a permanent magnet linear motor with internal cooling channels. By pumping refrigerant into the cooling channels, the heat of the motor is removed, enabling the motor to operate normally. However, cooling is not effective if only the refrigerant flows in the cooling channels, and the cooling of the motor needs to be improved. Summary of the Invention

[0005] To improve the above problems, this application provides a direct-drive structure for a permanent magnet motor in an extruder.

[0006] The permanent magnet motor direct-drive structure for an extruder provided in this application includes a motor body, a first coupling, a reducer, and a second coupling. The output end of the motor body and the input end of the reducer are coaxially connected via the second coupling. The output end of the reducer is coaxially connected to the extruder screw via the second coupling. A liquid cooling system is provided next to the motor body. A cooling channel is provided inside the motor body. The liquid cooling system is connected to the inlet end of the cooling channel via a first connecting pipe and is connected to the outlet end of the cooling channel via a second connecting pipe.

[0007] By adopting the above technical solutions, complex transmission components are eliminated, energy consumption is reduced, production costs are saved, the failure rate is reduced, the maintenance cycle is extended, equipment downtime is greatly reduced, and production efficiency is improved.

[0008] Preferably, a support base is provided below the motor body. The support base includes a base plate, vertical steel sections, and a top plate. The vertical steel sections are located at the four corners of the base plate. The bottom end of the vertical steel section is fixedly connected to the base plate, and the top end of the vertical steel section is fixedly connected to the top plate. A mounting frame is provided on the top surface of the top plate. The mounting frame includes a horizontally arranged fixing plate, a vertically arranged mounting plate, and a triangular plate. The bottom surface of the mounting plate is fixedly connected to the top surface of the fixing plate. The triangular plate is fixedly connected to both sides of the mounting plate, and the bottom surface of the triangular plate is fixedly connected to the top surface of the fixing plate. The fixing plate and the top plate are fixedly connected by bolts. The motor body is fixed to the mounting plate by bolts.

[0009] By adopting the above technical solution, the support base provides stable support for the motor body.

[0010] Preferably, the top plate extends toward the reducer to form an extension, and the coupling is fixed to the extension by a bolt pair.

[0011] Preferably, a reinforcing steel is provided between two adjacent vertical steel sections at both ends of the support base along its length. The two ends of the reinforcing steel are fixedly connected to the sidewalls of the corresponding vertical steel sections, and the bottom surface of the reinforcing steel is fixedly connected to the base plate.

[0012] By adopting the above technical solution, the structural strength of the support base has been enhanced.

[0013] Preferably, a reinforcing steel section 2 is provided between two adjacent vertical steel sections on both sides of the support base in the width direction. The two sides of the reinforcing steel section 2 in the width direction are fixedly connected to the sidewalls of the corresponding vertical steel sections, and the bottom surface of the reinforcing steel section 2 is fixedly connected to the base plate.

[0014] By adopting the above technical solution, the structural strength of the support base has been further enhanced.

[0015] Preferably, an air-cooling system is also provided next to the motor body. The air-cooling system includes an air-cooling cover, a cooler and an air pump. The air-cooling cover is provided on the motor body and is fixed to the mounting bracket by a connecting component. The air-cooling cover is provided with a clearance groove for connecting pipe one and connecting pipe two to make way.

[0016] The input end of the cooler is connected to and communicates with an air inlet pipe. The output end of the cooler is connected to and communicates with the input end of the air pump through a connecting pipe. The output end of the air pump is connected to and communicates with an air supply pipe. The air-cooled cover is provided with a connecting hole for the air supply pipe to pass through. The other end of the air supply pipe passes through the connecting hole. The connecting hole is an oblong hole. One end of the air supply pipe that passes through the connecting hole is bent upward. The length of the connecting hole is sufficient for the air supply pipe to pass through the connecting hole. The top of the air-cooled cover is connected to and communicates with an air outlet pipe. The air-cooled cover is provided with an auxiliary hole for the air outlet pipe to pass through. The other end of the air outlet pipe is connected to and communicates with the air inlet pipe.

[0017] By adopting the above technical solution, the motor body is further cooled and dissipated through the air-cooling system, and the heat around the motor body is actively carried away by the cooling airflow, thereby improving the cooling and heat dissipation effect of the motor body.

[0018] Preferably, the air-cooled cover includes a middle plate, a first side plate, and a second side plate; the middle plate is located on the side of the motor body away from the mounting plate, and the bottom surface of the middle plate abuts against the top surface of the top plate; the first side plate is fixedly connected to the side of the middle plate away from a vertical section of the connecting pipe, and the side of the first side plate away from the middle plate abuts against the side of the mounting plate near the middle plate, and the top surface of the first side plate is flush with the top surface of the middle plate; the second side plate is detachably connected to the side of the middle plate near a vertical section of the connecting pipe.

[0019] The second side plate includes a lower part and an upper part. The bottom surface of the lower part abuts against the top surface of the top plate. The distance between the top surface of the lower part and the horizontal section of the adjacent connecting pipe is greater than the bolt pair on the fixing plate being higher than the length of the fixing plate. The side of the lower part abuts against the side of the middle plate. The upper part is lightning-shaped and includes a vertically arranged unit segment one, a unit segment two, and a horizontally arranged unit segment three. The unit segment one and the unit segment two are integrally formed on both sides of the unit segment three and are in opposite directions. The unit segment one is fixed to the lower part by screws. The top surface of the unit segment two is flush with the top surface of the middle plate. The bottom surface of the unit segment three abuts against the top surface of the lower part. The side of the unit segment two abuts against the side of the middle plate.

[0020] The top of the air-cooled shroud is provided with a top cover, which includes a cover plate and a surrounding plate. The bottom surface of the cover plate abuts against the top surface of the middle plate, the top surface of the first side plate, and the top surface of the second unit segment. The inner peripheral wall of the surrounding plate abuts against the side surface of the middle plate, the side surface of the first side plate, and the side surface of the second unit segment. The bottom surface of the surrounding plate also abuts against the top surface of the mounting plate.

[0021] The connecting hole is located at the bottom of the middle plate, the auxiliary hole is located in the middle of the cover plate, the clearance groove is located at the top of the second unit segment and the clearance groove penetrates the top surface of the second unit segment, and the side wall of the enclosure is provided with an auxiliary groove for the first connecting pipe and the second connecting pipe to pass through and the auxiliary groove penetrates the bottom surface of the enclosure.

[0022] The top surface of the cover plate is provided with a sleeve one, the inner peripheral wall of the sleeve one is press-fitted with the outer peripheral wall of the air outlet pipe, the side of the intermediate plate away from the mounting plate is provided with a fixing component for fixing the air supply pipe, the input end of the cooler is provided with a sleeve two, the inner peripheral wall of the sleeve two is press-fitted with the outer peripheral wall of the air inlet pipe, and the air inlet pipe is provided with a sleeve three, the inner peripheral wall of the sleeve three is press-fitted with the outer peripheral wall of the air outlet pipe near the air inlet pipe.

[0023] A screw rod is fixedly connected to the top surface of side plate one, away from side plate two. A nut is threaded onto screw rod one, and nut one abuts against the outer wall of the enclosure. A screw rod is fixedly connected to the top surface of unit segment two, away from side plate one. A nut is threaded onto screw rod two, and nut two abuts against the outer wall of the enclosure. A fixing hole one is provided on the side wall of the enclosure for screw rod one to pass through, and fixing hole one penetrates the bottom surface of the enclosure. A fixing hole two is provided on the side wall of the enclosure for screw rod two to pass through, and fixing hole two penetrates the bottom surface of the enclosure.

[0024] By adopting the above technical solution, the assembly of the air-cooled cover can be adapted to the piping of the liquid cooling system and allow for clearance between the bolt pairs of the mounting bracket and the top plate.

[0025] Preferably, the connecting assembly includes a clamping plate and a support column. The clamping plate includes a first plate and a second plate that are vertically connected. The side of the first plate away from the second plate abuts against a corresponding side plate one or side plate two. The side of the first plate away from the middle plate abuts against a side of the mounting plate near the middle. The side of the second plate away from the middle plate abuts against a triangular plate near the middle plate. The second plate and the corresponding triangular plate are fixed by bolts. One end of the support column is fixedly connected to the second plate, and the other end of the support column contacts a corresponding side plate one or side plate two.

[0026] Preferably, the mounting plate is provided with a positioning plate one and a positioning plate two on the side near the middle plate, the side of the side plate one near the side plate two abuts against the side of the positioning plate one away from the side plate two, and the side of the side plate two near the side plate one abuts against the side of the positioning plate two away from the side plate one.

[0027] By adopting the above technical solution, the clamping plate, support column, positioning plate one, and positioning plate two cooperate to ensure that the two sides of the side plate one in the thickness direction are held in place by the support column and positioning plate, and the two sides of the side plate one in the thickness direction are held in place by the support column and positioning plate, and the support column and the middle plate, so that the connection of the air-cooled cover is tightly fitted, thereby achieving stable and firm assembly.

[0028] Preferably, the fixing assembly includes a fixing base and a fixing ring. The top surface of the fixing base is provided with a receiving groove for accommodating the air supply duct. The inner wall of the receiving groove is fitted with the outer wall of the air supply duct. The fixing ring is semi-circular and its inner wall is fitted with the outer wall of the air supply duct. Connecting plates extend outward from both ends of the fixing ring. The connecting plates are integrally formed with the fixing ring. The fixing base is fixedly connected to the side of the intermediate plate away from the mounting plate. Fixing screws are fixedly connected to the top surfaces of both ends of the fixing base. The connecting plates are provided with through holes for the fixing screws to pass through. Fixing nuts are threaded onto the fixing screws and abut against the top surface of the connecting plates.

[0029] By adopting the above technical solution, the air supply duct and the air-cooled cover are stably connected.

[0030] In summary, this application includes at least one of the following beneficial technical effects:

[0031] 1. By directly connecting the motor body to the extruder screw through a coupling and reducer, complex transmission components are eliminated, energy consumption is reduced, production costs are saved, the failure rate is reduced, the maintenance cycle is extended, equipment downtime is greatly reduced, and production efficiency is improved.

[0032] 2. The motor body is further cooled and dissipated through an air-cooling system. The cooling airflow actively removes the heat from the outside of the motor body, improving the cooling and heat dissipation effect of the motor body. Attached Figure Description

[0033] Figure 1 This is a schematic diagram of the direct-drive structure of the permanent magnet motor for the extruder and the overall structure of the extruder, as shown in Embodiment 1 of this application.

[0034] Figure 2 This is a schematic diagram of the structure of the air-cooled system used in Embodiment 2 of this application.

[0035] Figure 3 This is a structural schematic diagram of side panel two used to illustrate embodiment two of this application.

[0036] Figure 4 This is a schematic diagram of the structure of the top cover and the air-cooling shroud in Embodiment 2 of this application.

[0037] Figure 5 This is a schematic diagram of the structure of the positioning plate used to demonstrate the second embodiment of this application.

[0038] Figure 6 This is used to demonstrate in Embodiment 2 of this application. Figure 2 A magnified structural diagram of point A in the middle.

[0039] Explanation of reference numerals in the attached drawings: 1. Motor body; 11. Coupling 1; 2. Reducer; 21. Coupling 2; 3. Liquid cooling system; 31. Connecting pipe 1; 32. Connecting pipe 2; 4. Support base; 41. Base plate; 42. Vertical steel section; 43. Top plate; 431. Extension section; 44. Reinforcing steel section 1; 45. Reinforcing steel section 2; 5. Mounting bracket; 51. Fixing plate; 52. Mounting plate; 521. Positioning plate 1; 522. Positioning plate 2; 53. Triangular plate; 6. Air cooling system; 61. Air cooling cover; 611. Intermediate plate; 6111. Connecting hole; 612. Side plate 1; 613. Side plate 2; 6131. ​​Lower part; 6132. Upper part; 61321. Unit section 1; 61322. Unit section 2; 613221. 61323, Unit Section Three; 62, Refrigerator; 63, Air Pump; 64, Air Inlet Pipe; 65, Air Supply Pipe; 66, Air Outlet Pipe; 67, Top Cover; 671, Cover Plate; 6711, Sleeve One; 6712, Sleeve Two; 6713, Sleeve Three; 672, Enclosure Plate; 6721, Screw One; 6722, Screw Two; 6723, Nut One; 6724, Nut Two; 6725, Auxiliary Groove; 6726, Fixing Hole One; 7, Connecting Assembly; 71, Abutting Plate; 711, First Plate; 712, Second Plate; 72, Support Column; 8, Fixing Assembly; 81, Fixing Seat; 82, Fixing Ring; 821, Connecting Plate; 83, Fixing Screw; 84, Fixing Nut; 9, Extruder; 91, Extruder Screw. Detailed Implementation

[0040] The following is in conjunction with the appendix Figure 1-6 This application will be described in further detail.

[0041] This application discloses a direct-drive structure for a permanent magnet motor in an extruder. Example

[0042] Reference Figure 1 The direct-drive structure of the permanent magnet motor for the extruder includes a motor body 1, a coupling 11, a reducer 2, and a coupling 21. The output end of the motor body 1 is coaxially connected to the input end of the reducer 2 through the coupling 11, and the output end of the reducer 2 is coaxially connected to the extruder screw 91 through the coupling 21.

[0043] A liquid cooling system 3 is installed next to the motor body 1, and a cooling channel is installed inside the motor body 1. The liquid cooling system 3 is connected to the inlet end of the cooling channel via a connecting pipe 31, and the liquid cooling system 3 is connected to the outlet end of the cooling channel via a connecting pipe 32. The liquid cooling system 3 and the cooling channel of the motor body 1 in this application adopt the conventional combination of liquid cooling system 3 and cooling channel in the prior art, which is not an improvement of the technical solution of this application, and therefore will not be described in detail here.

[0044] By eliminating complex transmission components, energy consumption is reduced, production costs are saved, the failure rate is lowered, maintenance cycles are extended, equipment downtime is greatly reduced, and production efficiency is improved.

[0045] A support base 4 is provided below the motor body 1. The support base 4 includes a base plate 41, vertical steel sections 42, and a top plate 43. The vertical steel sections 42 are located at the four corners of the base plate 41. The bottom end of the vertical steel sections 42 is fixedly connected to the base plate 41, and the top end of the vertical steel sections 42 is fixedly connected to the top plate 43. A mounting bracket 5 is provided on the top surface of the top plate 43. The mounting bracket 5 includes a horizontally arranged fixing plate 51, a vertically arranged mounting plate 52, and a triangular plate 53. The bottom surface of the mounting plate 52 is fixedly connected to the top surface of the fixing plate 51. The triangular plate 53 is fixedly connected to both sides of the mounting plate 52, and the bottom surface of the triangular plate 53 is fixedly connected to the top surface of the fixing plate 51. The fixing plate 51 and the top plate 43 are fixedly connected by bolts. The motor body 1 is fixed to the mounting plate 52 by bolts. The top plate 43 extends towards the reducer 2 to form an extension 431. The coupling 11 is fixed to the extension 431 by bolts.

[0046] A reinforcing steel section 44 is provided between two adjacent vertical steel sections 42 at both ends of the support base 4 along its length. The two ends of the reinforcing steel section 44 along its length are fixedly connected to the side walls of the corresponding vertical steel sections 42, and the bottom surface of the reinforcing steel section 44 is fixedly connected to the base plate 41. A second reinforcing steel section 45 is provided between two adjacent vertical steel sections 42 on both sides of the support base 4 along its width. The two sides of the second reinforcing steel section 45 along its width are fixedly connected to the side walls of the corresponding vertical steel sections 42, and the bottom surface of the second reinforcing steel section 45 is fixedly connected to the base plate 41.

[0047] The reinforced steel 44 and reinforced steel 45 enhance the structural strength of the support base 4, and the support base 4 provides stable support for the motor body 1. Example

[0048] Reference Figure 2 The difference between Embodiment 2 and Embodiment 1 is that an air-cooling system 6 is also provided next to the motor body 1. The air-cooling system 6 includes an air-cooling cover 61, a cooler 62 and an air pump 63.

[0049] An air-cooled cover 61 is installed outside the motor body 1. The air-cooled cover 61 is fixed to the mounting bracket 5 via a connecting assembly 7. The air-cooled cover 61 is provided with a clearance groove 613221 for connecting pipe 1 31 and connecting pipe 2 32 to make way. The input end of the cooler 62 is connected to and communicates with an air inlet pipe 64. The output end of the cooler 62 is connected to and communicates with the input end of the air pump 63. The output end of the air pump 63 is connected to and communicates with an air supply pipe 65. The air-cooled cover 61 is provided with a connecting hole 6111 through which the air supply pipe 65 passes. The other end of the air supply pipe 65 passes into the connecting hole 6111. The connecting hole 6111 is an oblong hole. The end of the air supply pipe 65 that passes into the connecting hole 6111 bends upward to make the airflow move upward, which facilitates pushing the hot air upward. The length of the connecting hole 6111 is sufficient for the air supply pipe 65 to pass through the connecting hole 6111; the top of the air-cooled cover 61 is connected to and communicates with the air outlet pipe 66, and the air-cooled cover 61 is provided with an auxiliary hole for the air outlet pipe 66 to pass through. The other end of the air outlet pipe 66 is connected to and communicates with the air inlet pipe 64.

[0050] The air-cooling system 6 further cools and dissipates heat from the motor body 1, and the cooling airflow actively removes heat from the periphery of the motor body 1, thereby improving the cooling and heat dissipation effect of the motor body 1.

[0051] Reference Figure 2 The air-cooled cover 61 includes a middle plate 611, a first side plate 612, and a second side plate 613. The middle plate 611 is located on the side of the motor body 1 away from the mounting plate 52, and the bottom surface of the middle plate 611 abuts against the top surface of the top plate 43. The first side plate 612 is fixedly connected to the side of the middle plate 611 away from the vertical section of the connecting pipe 31, and the side of the first side plate 612 away from the middle plate 611 abuts against the side of the mounting plate 52 near the middle plate 611. The top surface of the first side plate 612 is flush with the top surface of the middle plate 611. The second side plate 613 is detachably connected to the side of the middle plate 611 near the vertical section of the connecting pipe 31.

[0052] Reference Figure 2 , 3Side plate 2 613 includes a lower part 6131 and an upper part 6132. The bottom surface of the lower part 6131 abuts against the top surface of the top plate 43. The distance between the top surface of the lower part 6131 and the horizontal section of the adjacent connecting pipe 1 31 is greater than the bolt pair on the fixing plate 51, which is higher than the length of the fixing plate 51. The side of the lower part 6131 abuts against the side of the middle plate 611. The upper part 6132 is lightning-shaped and includes vertically arranged unit segment 1 61321, unit segment 2 61322, and... The horizontally arranged unit segment 3 61323, unit segment 1 61321 and unit segment 2 61322 are integrally formed on both sides of unit segment 3 61323 and face opposite directions. Unit segment 1 61321 is fixed to the lower part 6131 by screws. The top surface of unit segment 2 61322 is flush with the top surface of the middle plate 611. The bottom surface of unit segment 3 61323 abuts against the top surface of the lower part 6131. ​​The side surface of unit segment 2 61322 abuts against the side surface of the middle plate 611.

[0053] Reference Figure 2 , 4 The top of the air-cooled cover 61 is provided with a top cover 67, which includes a cover plate 671 and a surrounding plate 672 surrounding the cover plate 671. The bottom surface of the cover plate 671 abuts against the top surface of the middle plate 611, the top surface of the first side plate 612, and the top surface of the second unit segment 61322. The inner peripheral wall of the surrounding plate 672 abuts against the side surface of the middle plate 611, the side surface of the first side plate 612, and the side surface of the second unit segment 61322. The bottom surface of the surrounding plate 672 also abuts against the top surface of the mounting plate 52.

[0054] The connecting hole 6111 is located at the bottom of the intermediate plate 611, the auxiliary hole is located in the middle of the cover plate 671, the clearance groove 613221 is located at the top of the second unit segment 61322 and the clearance groove 613221 penetrates the top surface of the second unit segment 61322, and the side wall of the enclosure plate 672 is provided with an auxiliary groove 6725 for the first connecting pipe 31 and the second connecting pipe 32 to pass through, and the auxiliary groove 6725 penetrates the bottom surface of the enclosure plate 672.

[0055] Reference Figure 2 The top surface of the cover plate 671 is provided with a sleeve 6711. The inner peripheral wall of the sleeve 6711 is press-fitted with the outer peripheral wall of the air outlet pipe 66. The side of the intermediate plate 611 away from the mounting plate 52 is provided with a fixing component 8 for fixing the air supply pipe 65. The input end of the cooler 62 is provided with a sleeve 6712. The inner peripheral wall of the sleeve 6712 is press-fitted with the outer peripheral wall of the air inlet pipe 64. The air inlet pipe 64 is provided with a sleeve 6713. The inner peripheral wall of the sleeve 6713 is press-fitted with the outer peripheral wall of the air outlet pipe 66 near the end of the air inlet pipe 64.

[0056] Reference Figure 2 , 4A screw rod 6721 is fixedly connected to the top of side plate 612 away from side plate 613. A nut 6723 is threaded onto screw rod 6721 and abuts against the outer wall of the enclosure 672. A screw rod 6722 is fixedly connected to the top of unit segment 61322 away from side plate 612. A nut 6724 is threaded onto screw rod 6722 and abuts against the outer wall of enclosure 672. A fixing hole 6726 is provided on the side wall of enclosure 672 for screw rod 6721 to pass through. Fixing hole 6726 penetrates the bottom surface of enclosure 672. A fixing hole 6722 is provided on the side wall of enclosure 672 for screw rod 6722 to pass through. Fixing hole 6722 penetrates the bottom surface of enclosure 672.

[0057] Reference Figure 2 , 3 The connecting assembly 7 includes a clamping plate 71 and a support column 72. The clamping plate 71 includes a first plate 711 and a second plate 712 that are vertically connected. The side of the first plate 711 away from the second plate 712 abuts against the corresponding side plate 1 612 or side plate 2 613. The side of the first plate 711 away from the middle plate 611 abuts against the side of the mounting plate 52 near the middle. The side of the second plate 712 away from the middle plate 611 abuts against the side of the triangular plate 53 near the middle plate 611. The second plate 712 and the corresponding triangular plate 53 are fixed by bolts. One end of the support column 72 is fixedly connected to the second plate 712, and the other end of the support column 72 contacts the corresponding side plate 1 612 or side plate 2 613. Support columns 72 are provided on both sides of the positioning plate and the middle plate 611.

[0058] Side plate 612 and the second plate 712 of the corresponding clamping plate 71 are located on both sides of the bolt pair at one end of the length direction of the fixed plate 51, and side plate 613 and the second plate 712 of the corresponding clamping plate 71 are located on both sides of the bolt pair at the other end of the length direction of the fixed plate 51, giving way to the bolt pair between the mounting bracket 5 and the top plate 43.

[0059] Reference Figure 5 The mounting plate 52 has a positioning plate 1 521 and a positioning plate 2 522 on the side near the middle plate 611. The side plate 1 612 near the side plate 2 613 abuts against the side of the positioning plate 1 521 away from the side plate 2 613, and the side plate 2 613 near the side plate 1 612 abuts against the side of the positioning plate 2 522 away from the side plate 1 612. The two sides of the side plate 1 612 in the thickness direction can be supported by the positioning plate 1 521 and the corresponding support column 72, and the two sides of the side plate 2 613 in the thickness direction can be supported by the positioning plate 2 522 and the corresponding support column 72, as well as by the middle plate 611 and the corresponding support column 72.

[0060] Reference Figure 6The fixing component 8 includes a fixing base 81 and a fixing ring 82. The top surface of the fixing base 81 is provided with a receiving groove for the air supply duct 65 to be accommodated. The inner wall of the receiving groove is in contact with the outer wall of the air supply duct 65. The fixing ring 82 is semi-circular and its inner wall is in contact with the outer wall of the air supply duct 65. The two ends of the fixing ring 82 extend outward with connecting plates 821. The connecting plates 821 and the fixing ring 82 are integrally formed. The fixing base 81 is fixedly connected to the side of the intermediate plate 611 away from the mounting plate 52. The top surfaces of the two ends of the fixing base 81 are fixedly connected with fixing screws 83. The connecting plate 821 is provided with a through hole for the fixing screws 83 to pass through. The fixing screws 83 are threaded with fixing nuts 84. The fixing nuts 84 are pressed against the top surface of the connecting plate 821 to make the air supply duct 65 and the air-cooled cover 61 stably connected.

[0061] The assembly of the air-cooled cover 61 can accommodate the bolt pair between the mounting bracket 5 and the top plate 43 of the liquid cooling system 3. Through the cooperation of the clamping plate 71, the support column 72, the positioning plate 1 521, and the positioning plate 2 522, the two sides of the side plate 1 612 in the thickness direction are held in place by the support column 72 and the positioning plate, and the two sides of the side plate 1 612 in the thickness direction are held in place by the support column 72 and the positioning plate, and the support column 72 and the middle plate 611, so that the connection of the air-cooled cover 61 is tightly fitted, thereby achieving a stable and firm assembly.

[0062] When assembling the air-cooled cover 61, first move the middle plate 611 and side plate 612 from top to bottom along the positioning plate 521 until the bottom surface of the middle plate 611 abuts against the top surface of the fixing plate 51. Then, move the lower plate of side plate 613 from below the horizontal section of the connecting pipe 31 near the motor body 1 from top to bottom along the positioning plate 522 until the bottom surface of the lower part 6131 abuts against the top surface of the fixing plate 51. Then, move the upper part 6132 along the axial direction of the horizontal section of the connecting pipe 31 near the motor body 1 to the unit section 61323 and the lower part 6132. The top surface of 131 abuts against the bottom part 6131 and the unit segment 61323 is fixed with screws. Then, the clamping plate 71 is moved from the bottom of the horizontal section of the connecting pipe 1 31 near the motor body 1 from top to bottom along the corresponding side plate 1 612 or side plate 2 613 until the bottom surface of the clamping plate 71 abuts against the top surface of the fixing plate 51. The second plate 712 of the clamping plate 71 and the corresponding triangular plate 53 are fixed with bolt pairs. Then, the top cover 67 is placed on the top of the air-cooling cover 61 and fixed with screws and nuts. Then, the air-cooling pipeline is installed.

[0063] The two ends of the connecting pipe are pre-connected to the cooler 62 and the air pump 63. The air supply pipe 65 is also pre-connected to the air pump 63. When assembling other pipes, first insert the air inlet pipe 64 into the sleeve 2 6712, then insert the air supply pipe 65 into the connecting hole 6111 and fix it with the fixing component 8. Finally, insert the end of the air outlet pipe 66 near the air-cooled cover 61 into the sleeve 1 6711 and insert the end of the air outlet pipe 66 near the air inlet pipe 64 into the sleeve 3 6713.

[0064] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A direct-drive structure for a permanent magnet motor in an extruder, characterized in that: The device includes a motor body (1), a first coupling (11), a reducer (2), and a second coupling (21). The output end of the motor body (1) and the input end of the reducer (2) are coaxially connected through the first coupling (11). The output end of the reducer (2) and the extruder screw (91) are coaxially connected through the second coupling (21). A liquid cooling system (3) is provided next to the motor body (1). A cooling channel is provided inside the motor body (1). The liquid cooling system (3) is connected to the inlet end of the cooling channel through a first connecting pipe (31) and is connected to the outlet end of the cooling channel through a second connecting pipe (32).

2. The direct-drive structure for a permanent magnet motor in an extruder according to claim 1, characterized in that: A support base (4) is provided below the motor body (1). The support base (4) includes a base plate (41), vertical steel sections (42), and a top plate (43). The vertical steel sections (42) are located at the four corners of the base plate (41). The bottom end of the vertical steel sections (42) is fixedly connected to the base plate (41), and the top end of the vertical steel sections (42) is fixedly connected to the top plate (43). A mounting frame (5) is provided on the top surface of the top plate (43). The mounting frame (5) includes a water... A flat fixed plate (51), a vertically mounted mounting plate (52), and a triangular plate (53) are provided. The bottom surface of the mounting plate (52) is fixedly connected to the top surface of the fixed plate (51). The triangular plate (53) is fixedly connected to both sides of the mounting plate (52), and the bottom surface of the triangular plate (53) is fixedly connected to the top surface of the fixed plate (51). The fixed plate (51) and the top plate (43) are fixedly connected by bolts. The motor body (1) is fixed to the mounting plate (52) by bolts.

3. The direct-drive structure for a permanent magnet motor in an extruder according to claim 2, characterized in that: The top plate (43) extends toward the reducer (2) to form an extension (431), and the coupling (11) is fixed to the extension (431) by a bolt pair.

4. The direct-drive structure for a permanent magnet motor in an extruder according to claim 2, characterized in that: A reinforcing steel section (44) is provided between two adjacent vertical steel sections (42) at both ends of the length direction of the support base (4). The two ends of the reinforcing steel section (44) are fixedly connected to the side wall of the corresponding vertical steel section (42), and the bottom surface of the reinforcing steel section (44) is fixedly connected to the base plate (41).

5. The direct-drive structure for a permanent magnet motor in an extruder according to claim 2, characterized in that: A reinforcing steel section (45) is provided between two adjacent vertical steel sections (42) on both sides of the width direction of the support base (4). The two sides of the reinforcing steel section (45) are fixedly connected to the side walls of the corresponding vertical steel sections (42) on both sides of the width direction. The bottom surface of the reinforcing steel section (45) is fixedly connected to the base plate (41).

6. The direct-drive structure for a permanent magnet motor in an extruder according to claim 2, characterized in that: A cooling system (6) is also provided next to the motor body (1). The cooling system (6) includes a cooling cover (61), a cooler (62) and an air pump (63). The cooling cover (61) is installed outside the motor body (1). The cooling cover (61) is fixed to the mounting bracket (5) by a connecting component (7). The cooling cover (61) is provided with a clearance groove (613221) for the first connecting pipe (31) and the second connecting pipe (32) to make way. The input end of the cooler (62) is connected to and communicates with an air inlet pipe (64). The output end of the cooler (62) is connected to and communicates with the input end of the air pump (63) through a connecting pipe. The output end of the air pump (63) is connected to and communicates with an air supply pipe (65). The air-cooled cover (61) is provided with a connecting hole (6111) for the air supply pipe (65) to pass through. The other end of the air supply pipe (65) passes through the connecting hole (6111). 6111) is a waist-shaped hole. One end of the air supply pipe (65) that passes through the connecting hole (6111) is bent upward. The length of the connecting hole (6111) is sufficient for the air supply pipe (65) to pass through the connecting hole (6111). The top of the air-cooled cover (61) is connected to and communicates with an air outlet pipe (66). The air-cooled cover (61) is provided with an auxiliary hole for the air outlet pipe (66) to pass through. The other end of the air outlet pipe (66) is connected to and communicates with the air inlet pipe (64).

7. The direct-drive structure for a permanent magnet motor in an extruder according to claim 6, characterized in that: The air-cooled cover (61) includes a middle plate (611), a first side plate (612), and a second side plate (613). The middle plate (611) is located on the side of the motor body (1) away from the mounting plate (52), and the bottom surface of the middle plate (611) abuts against the top surface of the top plate (43). The first side plate (612) is fixedly connected to the side of the middle plate (611) away from the vertical section of the first connecting pipe (31), and the side of the first side plate (612) away from the middle plate (611) abuts against the side of the mounting plate (52) near the middle plate (611). The top surface of the first side plate (612) is flush with the top surface of the middle plate (611). The second side plate (613) is detachably connected to the side of the middle plate (611) near the vertical section of the first connecting pipe (31). The second side plate (613) includes a lower part (6131) and an upper part (6132). The bottom surface of the lower part (6131) abuts against the top surface of the top plate (43). The distance between the top surface of the lower part (6131) and the horizontal section of the adjacent connecting pipe (31) is greater than the bolt pair on the fixing plate (51) being higher than the length of the fixing plate (51). The side of the lower part (6131) abuts against the side of the middle plate (611). The upper part (6132) is lightning-shaped and includes a vertically arranged unit segment one (61321) and unit segment two (61321). 22) and horizontally arranged unit segment three (61323), wherein unit segment one (61321) and unit segment two (61322) are integrally formed on both sides of unit segment three (61323) and in opposite directions, unit segment one (61321) is fixed to the lower part (6131) by screws, the top surface of unit segment two (61322) is flush with the top surface of the middle plate (611), the bottom surface of unit segment three (61323) abuts against the top surface of the lower part (6131), and the side surface of unit segment two (61322) abuts against the side surface of the middle plate (611); The top of the air-cooled cover (61) is provided with a top cover (67), the top cover (67) includes a cover plate (671) and a surrounding plate (672) surrounding the cover plate (671). The bottom surface of the cover plate (671) abuts against the top surface of the middle plate (611), the top surface of the first side plate (612), and the top surface of the second unit segment (61322). The inner peripheral wall of the surrounding plate (672) abuts against the side surface of the middle plate (611), the side surface of the first side plate (612), and the side surface of the second unit segment (61322). The bottom surface of the surrounding plate (672) also abuts against the top surface of the mounting plate (52). The connecting hole (6111) is located at the bottom of the intermediate plate (611), the auxiliary hole is located in the middle of the cover plate (671), the clearance groove (613221) is located at the top of the second unit segment (61322) and the clearance groove (613221) penetrates the top surface of the second unit segment (61322), and the side wall of the enclosure plate (672) is provided with an auxiliary groove (6725) for the first connecting pipe (31) and the second connecting pipe (32) to pass through, and the auxiliary groove (6725) penetrates the bottom surface of the enclosure plate (672); The top surface of the cover plate (671) is provided with a sleeve one (6711), the inner peripheral wall of the sleeve one (6711) is interference-fitted with the outer peripheral wall of the air outlet pipe (66), the side of the intermediate plate (611) away from the mounting plate (52) is provided with a fixing component (8) for fixing the air supply pipe (65), the input end of the cooler (62) is provided with a sleeve two (6712), the inner peripheral wall of the sleeve two (6712) is interference-fitted with the outer peripheral wall of the air inlet pipe (64), the air inlet pipe (64) is provided with a sleeve three (6713), the inner peripheral wall of the sleeve three (6713) is interference-fitted with the outer peripheral wall of the air outlet pipe (66) near the air inlet pipe (64); A screw rod (6721) is fixedly connected to the top surface of side plate one (612) away from side plate two (613). A nut (6723) is threaded onto screw rod one (6721) and abuts against the outer wall of the surrounding plate (672). A screw rod two (6722) is fixedly connected to the top surface of unit segment two (61322) away from side plate one (612). A screw rod two (6722) is threaded onto screw rod two (6722). A second nut (6724) is connected and abuts against the outer wall of the enclosure (672). A first fixing hole (6726) for a screw (6721) to pass through is provided on the side wall of the enclosure (672). The first fixing hole (6726) penetrates the bottom surface of the enclosure (672). A second fixing hole for a screw (6722) to pass through is provided on the side wall of the enclosure (672). The second fixing hole penetrates the bottom surface of the enclosure (672).

8. The direct-drive structure for a permanent magnet motor in an extruder according to claim 6, characterized in that: The connecting assembly (7) includes a clamping plate (71) and a support column (72). The clamping plate (71) includes a first plate (711) and a second plate (712) that are vertically connected. The side of the first plate (711) away from the second plate (712) abuts against the corresponding side plate one (612) or side plate two (613). The side of the first plate (711) away from the middle plate (611) abuts against the side of the mounting plate (52) near the middle. The side of the second plate (712) away from the middle plate (611) abuts against the side of the triangular plate (53) near the middle plate (611). The second plate (712) and the corresponding triangular plate (53) are fixed by bolts. One end of the support column (72) is fixedly connected to the second plate (712), and the other end of the support column (72) contacts the corresponding side plate one (612) or side plate two (613).

9. The direct-drive structure for a permanent magnet motor in an extruder according to claim 7, characterized in that: The mounting plate (52) is provided with a positioning plate one (521) and a positioning plate two (522) on the side near the middle plate (611). The side of the side plate one (612) near the side plate two (613) abuts against the side of the positioning plate one (521) away from the side plate two (613). The side of the side plate two (613) near the side plate one (612) abuts against the side of the positioning plate two (522) away from the side plate one (612).

10. The direct-drive structure for a permanent magnet motor in an extruder according to claim 7, characterized in that: The fixing assembly (8) includes a fixing base (81) and a fixing ring (82). The top surface of the fixing base (81) is provided with a receiving groove for accommodating the air supply pipe (65). The inner wall of the receiving groove is fitted with the outer wall of the air supply pipe (65). The fixing ring (82) is semi-circular and its inner wall is fitted with the outer wall of the air supply pipe (65). Connecting plates (821) extend outward from both ends of the fixing ring (82). The connecting plates (821) are connected to... The fixing ring (82) is integrally formed. The fixing seat (81) is fixedly connected to the side of the intermediate plate (611) away from the mounting plate (52). Fixing screws (83) are fixedly connected to the top surfaces of both ends of the fixing seat (81). The connecting plate (821) is provided with through holes for the fixing screws (83) to pass through. Fixing nuts (84) are threaded onto the fixing screws (83). The fixing nuts (84) abut against the top surface of the connecting plate (821).

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