Permanent magnet motor for engineering machinery

Abstract

The invention provides a permanent magnet motor for engineering machinery, and relates to the technical field of permanent magnet motors, the permanent magnet motor comprises a motor mounting base and a torsion adjusting group, the upper end of the motor mounting base is rotatably provided with a torsion conduction bearing seat, the upper end of the torsion conduction bearing seat is fixedly provided with a bearing connecting chassis, and the middle of the bearing connecting chassis is provided with a permanent magnet motor main body; a second torsion fluted disc is rotationally mounted at the lower end of the torsion conduction bearing seat, and a motor torsion transmission base is arranged in the middle of the second torsion fluted disc; the motor mounting seat is arranged on the side surface of the permanent magnet motor main body, is mounted on the bearing connecting chassis through the motor mounting support arm, is connected to the motor torque transmission base at the lower end, and is transmitted to the torque support arm and the torque adjusting group through meshing of the first torque fluted disc; and the rear end of the torsion adjusting group is connected with the power supply switch, so that the permanent magnet motor main body can be powered off in time, and connected parts can be protected.

Description

Technical Field

[0001] This invention relates to the field of permanent magnet motor technology, specifically a permanent magnet motor for use in engineering machinery. Background Technology

[0002] Permanent magnet motors are a typical mechatronic product, mainly composed of the motor body, position sensors, etc. With the rapid development of industrial automation, new energy power generation, transportation and other fields, the demand for high-power permanent magnet motors is increasing. When high-power motors are used under high intensity, such as the high-stability high-power permanent magnet motor with a self-controlled cooling structure described in application number CN202411012138.3, the field will generate excessive driving torque on the drive shaft during start-up and shutdown. Some components at the other end of the drive shaft cannot withstand the excessive driving torque, which leads to damage and deformation of the connecting components. Summary of the Invention

[0003] To address the shortcomings of existing technologies, this invention provides a permanent magnet motor for engineering machinery, solving the problems mentioned in the background art.

[0004] To achieve the above objectives, the present invention is implemented through the following technical solution: a permanent magnet motor for engineering machinery, comprising a motor mounting base and a torque adjustment group, wherein a torque transmission bearing seat is rotatably mounted on the upper end of the motor mounting base, a bearing connecting chassis is fixedly mounted on the upper end of the torque transmission bearing seat, a permanent magnet motor body is disposed in the middle of the bearing connecting chassis, a second torque gear is rotatably mounted on the lower end of the torque transmission bearing seat, and a motor torque transmission base is disposed in the middle of the second torque gear. A torsion bar connecting plate is integrally provided on one side of the motor mounting base, and a torsion arm is rotatably mounted on the torsion bar connecting plate. The torque adjustment group is connected to the rear end of the torsion arm.

[0005] Preferably, a first torque gear is fixedly connected to the lower end of the torque arm, and the first torque gear and the second torque gear are meshed together. The lower end of the torque adjustment group is provided with a torque bar rotatable connecting arm and a torque bar connecting plate.

[0006] Preferably, the permanent magnet motor body has several motor mounting seats on its side, and a motor mounting arm is fixedly installed on the outer end of each motor mounting seat.

[0007] Preferably, the motor mounting base is provided with mounting base side angle irons at all four corners.

[0008] Preferably, the torque adjustment assembly includes: a torque adjustment handle, an adjustment limit ring, a fixed torsion bar, a torque fixing pin, a torque support arm connector, a torque adjustment screw, a torque top spring seat, a torque top spring, a first torque retaining seat, a torque retaining pin, a second torque retaining seat, an inner torque top rod, and a top rod limiting ball seat. The torque adjustment handle is fitted with an adjustment limit ring, and a fixed torsion rod is rotatably fitted inside the torque adjustment handle. A top rod limit ball seat is provided inside the fixed torsion rod, and a torque fixing pin is inserted into the top rod limit ball seat. A torque support arm connector is integrally provided at the upper end of the top rod limit ball seat, and an inner torque top rod is integrally provided at the lower end of the top rod limit ball seat. The lower end of the inner torque push rod is fixedly installed with a second torque bracket, and a first torque bracket is provided below the second torque bracket. A torque pin is movably arranged between the first torque bracket and the second torque bracket. The lower end of the first torque holder is provided with a torque top spring, the lower end of the torque top spring is provided with a torque top spring seat, and the lower end of the torque top spring seat is provided with a torque adjusting screw.

[0009] Preferably, a limiting ring spring is provided inside the adjusting limiting ring, and a plurality of limiting bead slots are provided on the inner wall of the adjusting limiting ring. A sliding limiting bead is provided on the side of the torque adjusting handle and rotatably located on the adjusting limiting ring.

[0010] Preferably, a torque adjusting nut is provided inside the torque adjusting handle, and the torque adjusting nut is interlocked with the torque adjusting screw. A limit ring mounting cover is integrally provided at the lower end of the fixed torque rod, and a screw limit ring is fixedly installed inside the limit ring mounting cover. A first sealing ring is provided between the outer side of the limiting ring mounting cover and the torque adjustment handle, and a second sealing ring is provided between the inner top wall of the torque adjustment handle and the fixed torsion bar.

[0011] Preferably, the upper end of the torque arm connector is fixedly connected to the torque arm.

[0012] Preferably, the motor torque transmission base includes: a gear plate connecting seat, a fixed base ring, a motor connecting seat, a motor adjusting top seat, a lifting limit ring, a lifting limit platform, a lifting screw, and a lifting screw hole; The upper end of the gear plate connecting seat is integrally provided with a fixed base ring, the fixed base ring is integrally provided with a lifting limit ring, the lifting limit ring is slidably provided with a lifting limit platform, the upper end of the lifting limit platform is integrally provided with a motor connecting seat, and the lifting limit platform is provided with a lifting screw hole. A lifting screw is rotatably installed inside the lifting screw hole, and a motor adjustment top seat is integrally installed at the lower end of the lifting screw.

[0013] Preferably, the gear plate connecting seat is integrated with the second torque gear plate.

[0014] This invention provides a permanent magnet motor for use in engineering machinery. It has the following beneficial effects: (1) The permanent magnet motor body of the present invention is provided with a motor mounting base on the side and is mounted on the bearing connecting chassis through a motor mounting support arm. Then it is connected to the motor torque transmission base at the lower end and transmitted to the torque support arm and torque adjustment group through the meshing of the first torque gear plate. Thus, it can be protected by the torque limit set by the torque adjustment group. The rear end of the torque adjustment group is connected to the power supply switch, so that the permanent magnet motor body can be de-energized in time to protect the connected components. (2) By pushing the adjusting limit ring, the limit bead slot is locked with the sliding limit bead, thereby synchronously driving the internal torque adjusting head to rotate. At the same time, the internal torque adjusting nut cooperates with the middle torque adjusting screw, so that the torque adjusting screw pushes the torque top spring seat upward, and the torque top spring between the first torque card seat and the torque top spring seat gradually increases, thereby increasing the pressure on the torque card pin held by the first torque card seat and the second torque card seat, thereby enabling the torque support arm to drive the torque support arm connecting head, and through the torque fixing pin as the turning point, the force of turning the torque card pin will increase, thereby adjusting the torque value limit, and protecting it according to the torque that the connecting parts of the permanent magnet motor main drive end can withstand. (3) By rotating the motor adjustment top seat at the lower end, the upper lifting screw pushes the upper lifting screw hole, so that the lifting limit ring and the lifting limit platform can slide in a limited manner, thereby pushing the motor connecting seat to move upward and synchronously connect with the bottom of the permanent magnet motor body. Attached Figure Description

[0015] Figure 1 This is a structural schematic diagram from a first perspective of the present invention; Figure 2 This is a structural schematic diagram from a second perspective of the present invention; Figure 3 This is a structural schematic diagram of the invention from a third perspective; Figure 4 This is a schematic diagram of the torque adjustment group from a first-view perspective in this invention; Figure 5 This is a schematic diagram of the torque adjustment group from a second perspective in this invention; Figure 6 This is a schematic diagram of the torque adjustment group from a third-view perspective in this invention; Figure 7 This is a schematic diagram of the structure of the motor torque transmission base in this invention; Figure 8 This is a side view of the motor torque transmission base in this invention. Figure 9 For the present invention Figure 8 A schematic diagram of the cross-sectional structure of line aa in the middle.

[0016] The components include: 1. Motor mounting base; 2. Torque transmission bearing seat; 3. Bearing connecting chassis; 4. Motor mounting arm; 5. Permanent magnet motor body; 6. Motor mounting base; 7. Torque bar connecting plate; 8. Torque support arm; 9. Torque adjustment assembly; 901. Torque adjustment handle; 902. Adjustment limit ring; 903. Fixed torsion bar; 904. Torque fixing pin; 905. Torque support arm connector; 906. Torque adjustment nut; 907. Torque adjustment screw; 908. Screw limit ring; 909. Limit ring mounting cover; 910. First sealing ring; 911. Torque top spring seat; 912. Torque top spring; 913. First torque retainer; 914. 915. Second sealing ring; 916. Torque pin; 917. Second torque seat; 918. Inner torque push rod; 919. Push rod limit ball seat; 910. Limit ring spring; 921. Limit bead slot; 922. Sliding limit bead; 1201. First torque gear; 1202. Second torque gear; 13. Motor torque transmission base; 14. Gear connecting seat; 15. Fixed base ring; 16. Motor connecting seat; 17. Motor adjusting top seat; 18. Lifting limit ring; 19. Lifting limit platform; 10. Lifting screw; 10. Lifting screw hole; 11. Torque rod rotating connecting arm; 12. Mounting base side angle iron. Detailed Implementation

[0017] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0018] like Figures 1 to 3As shown, this embodiment of the invention provides a permanent magnet motor for engineering machinery, including a motor mounting base 1 and a torque adjustment group 9. A torque transmission bearing seat 2 is rotatably mounted on the upper end of the motor mounting base 1. A bearing connecting chassis 3 is fixedly mounted on the upper end of the torque transmission bearing seat 2. The permanent magnet motor body 5 is disposed in the middle of the bearing connecting chassis 3. A second torque gear 11 is rotatably mounted on the lower end of the torque transmission bearing seat 2. A motor torque transmission base 12 is disposed in the middle of the second torque gear 11. A torque rod connecting disc 7 is integrally provided on one side of the motor mounting base 1. A torque support arm 8 is rotatably mounted on the torque rod connecting plate 7. The torque adjustment group 9 is connected to the rear end of the torque support arm 8. A first torque gear 10 is fixedly connected to the lower end of the torque support arm 8. The first torque gear 10 and the second torque gear 11 are meshed together. A torque rod rotatable connecting arm 13 and the torque rod connecting plate 7 are provided at the lower end of the torque adjustment group 9. Several motor mounting seats 6 are provided on the side of the permanent magnet motor body 5. A motor mounting arm 4 is fixedly mounted on the outer end of the motor mounting seat 6. An angle iron 14 is provided at each of the four corners of the motor mounting base 1.

[0019] In the above technical solution, the motor mounting base 6 is provided on the side of the permanent magnet motor body 5 and is mounted on the bearing connecting chassis 3 through the motor mounting support arm 4. It is then connected to the lower motor torque transmission base 12 and transmitted to the torque support arm 8 and the torque adjustment group 9 through the meshing of the first torque gear 10. Thus, the torque limit set by the torque adjustment group 9 can provide protection. The rear end of the torque adjustment group 9 is connected to the power supply switch, so that the power to the permanent magnet motor body 5 can be cut off in time to protect the connected components.

[0020] like Figure 1 , Figures 4 to 6As shown, the torque adjustment assembly 9 includes: a torque adjustment handle 901, an adjustment limit ring 902, a fixed torsion bar 903, a torque fixing pin 904, a torque support arm connector 905, a torque adjustment screw 907, a torque top spring seat 911, a torque top spring 912, a first torque retaining seat 913, a torque retaining pin 915, a second torque retaining seat 916, an inner torque top rod 917, and a top rod limiting ball seat 918; the torque adjustment handle 901 is fitted with an adjustment limit ring 902, and the fixed torsion bar 903 is rotatably fitted inside the torque adjustment handle 901. A top rod limiting ball seat 918 is provided inside the fixed torsion bar 903. A torque fixing pin 904 is inserted into the top rod limiting ball seat 918. A torque support arm connector 905 is integrally provided at the upper end of the top rod limiting ball seat 918. An inner torque top rod 917 is integrally provided at the lower end of the top rod limiting ball seat 918. A second torque retainer 916 is fixedly installed at the lower end of the inner torque top rod 917. A first torque retainer 913 is provided below the second torque retainer 916. A movable joint is provided between the first torque retainer 913 and the second torque retainer 916. Torque pin 915; a torque top spring 912 is provided at the lower end of the first torque holder 913, a torque top spring seat 911 is provided at the lower end of the torque top spring 912, a torque adjusting screw 907 is provided at the lower end of the torque top spring seat 911, a limit ring spring 919 is provided inside the adjusting limit ring 902, a plurality of limit bead slots 920 are opened on the inner wall of the adjusting limit ring 902, and a sliding limit bead 921 is provided on the side of the torque adjusting handle 901 and rotatably disposed on the adjusting limit ring 902. A torque adjusting screw is provided inside the torque adjusting handle 901. The torque adjusting nut 906 is interlocked with the torque adjusting screw 907. The lower end of the fixed torsion bar 903 is integrally provided with a limit ring mounting cover 909, and a screw limit ring 908 is fixedly installed inside the limit ring mounting cover 909. A first sealing ring 910 is provided between the outside of the limit ring mounting cover 909 and the torque adjusting handle 901. A second sealing ring 914 is provided between the top inner wall of the torque adjusting handle 901 and the fixed torsion bar 903. The upper end of the torque support arm connector 905 is fixedly connected to the torque support arm 8.

[0021] In the above technical solution, by pushing the adjusting limit ring 902, the limit bead slot 920 locks the sliding limit bead 921, thereby synchronously driving the internal torque adjusting handle 901 to rotate. At the same time as rotation, the internal torque adjusting nut 906 cooperates with the middle torque adjusting screw 907, causing the torque adjusting screw 907 to push the torque top spring seat 911 upward, so that the torque top spring 912 between the first torque seat 913 and the torque top spring seat 911 gradually increases. This allows the pressure on the torque locking pin 915 held by the first torque seat 913 and the second torque seat 916 to increase, thereby enabling the torque support arm 8 to drive the torque support arm connector 905. With the torque fixing pin 904 as the pivot point, the force of turning the torque locking pin 915 will increase, thereby adjusting the torque value limit. Based on the torque that the permanent magnet motor body 5 drive end connecting component can withstand, protection is provided.

[0022] like Figure 2 , Figures 7 to 9 As shown, the motor torque transmission base 12 includes: a gear plate connecting seat 1201, a fixed base ring 1202, a motor connecting seat 1203, a motor adjusting top seat 1204, a lifting limit ring 1205, a lifting limit platform 1206, a lifting screw 1207, and a lifting screw hole 1208; the fixed base ring 1202 is integrally provided on the upper end of the gear plate connecting seat 1201, and the lifting limit ring 1205 is integrally provided inside the fixed base ring 1202. A lifting limit platform 1206 is slidably disposed within the lifting limit ring 1205. A motor connecting seat 1203 is integrally disposed at the upper end of the lifting limit platform 1206. A lifting screw hole 1208 is opened in the lifting limit platform 1206. A lifting screw 1207 is rotatably disposed within the lifting screw hole 1208. A motor adjusting top seat 1204 is integrally disposed at the lower end of the lifting screw 1207. The gear plate connecting seat 1201 is integrally disposed with the second torque gear plate 11.

[0023] In the above technical solution, by rotating the lower motor adjustment top seat 1204, the upper lifting screw 1207 pushes the upper lifting screw hole 1208, so that the lifting limit ring 1205 and the lifting limit platform 1206 slide in a limited position, thereby pushing the motor connecting seat 1203 to move upward and connect synchronously with the bottom of the permanent magnet motor body 5.

[0024] Working principle: The permanent magnet motor body 5 of the present invention has a motor mounting base 6 on its side, which is mounted on the bearing connecting chassis 3 through the motor mounting support arm 4. It is then connected to the motor torque transmission base 12 at the lower end, and the torque is transmitted to the torque support arm 8 and the torque adjustment group 9 through the meshing of the first torque gear 10. Thus, the torque limit set by the torque adjustment group 9 can be used for protection. The rear end of the torque adjustment group 9 is connected to the power supply switch, so that the power to the permanent magnet motor body 5 can be cut off in time to protect the connected components. Specifically, by pushing the adjusting limit ring 902, the limit bead slot 920 locks the sliding limit bead 921, thereby synchronously driving the internal torque adjusting handle 901 to rotate. While rotating, the internal torque adjusting nut 906 cooperates with the middle torque adjusting screw 907, causing the torque adjusting screw 907 to push the torque top spring seat 911 upward, causing the torque top spring 912 between the first torque seat 913 and the torque top spring seat 911 to gradually increase. This allows the pressure on the torque locking pin 915 held by the first torque seat 913 and the second torque seat 916 to increase, thereby causing the torque support arm 8 to drive the torque support arm connector 905. With the torque fixing pin 904 as the pivot point, the force of turning the torque locking pin 915 will increase, thereby adjusting the torque value limit. Based on the torque that the drive end connecting component of the permanent magnet motor body 5 can withstand, protection is provided. Specifically, by rotating the lower motor adjustment top seat 1204, the upper lifting screw 1207 pushes the upper lifting screw hole 1208, causing the lifting limit ring 1205 and the lifting limit platform 1206 to slide in a limited position, thereby pushing the motor connecting seat 1203 to move upward and connect synchronously with the bottom of the permanent magnet motor body 5.

[0025] Obviously, the above embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the implementation of the present invention. For those skilled in the art, other variations or modifications can be made based on the above description. It is impossible to exhaustively list all the implementation methods here. All obvious variations or modifications derived from the technical solutions of the present invention are still within the protection scope of the present invention.

Claims

1. A permanent magnet motor for engineering machinery, comprising a motor mounting base (1) and a torque adjustment assembly (9), characterized in that, The upper end of the motor mounting base (1) is rotatably mounted with a torque transmission bearing seat (2), the upper end of the torque transmission bearing seat (2) is fixedly mounted with a bearing connecting chassis (3), the middle of the bearing connecting chassis (3) is provided with a permanent magnet motor body (5), the lower end of the torque transmission bearing seat (2) is rotatably mounted with a second torque gear (11), and the middle of the second torque gear (11) is provided with a motor torque transmission base (12). The motor mounting base (1) is integrated with a torsion bar connecting plate (7) on one side. A torsion arm (8) is rotatably mounted on the torsion bar connecting plate (7). The torque adjustment group (9) is connected to the rear end of the torsion arm (8).

2. A permanent magnet motor for engineering machinery according to claim 1, characterized in that, The lower end of the torque arm (8) is fixedly connected to a first torque gear (10), and the first torque gear (10) and the second torque gear (11) are meshed together. The lower end of the torque adjustment group (9) is provided with a torque rod rotating connection arm (13) and a torque rod connection plate (7).

3. A permanent magnet motor for engineering machinery according to claim 2, characterized in that, The permanent magnet motor body (5) has several motor mounting seats (6) on its side, and a motor mounting arm (4) is fixedly installed on the outer end of the motor mounting seat (6).

4. A permanent magnet motor for engineering machinery according to claim 3, characterized in that, The motor mounting base (1) is provided with mounting base side angle irons (14) at all four corners.

5. A permanent magnet motor for engineering machinery according to claim 4, characterized in that, The torque adjustment assembly (9) includes: a torque adjustment handle (901), an adjustment limit ring (902), a fixed torsion bar (903), a torque fixing pin (904), a torque support arm connector (905), a torque adjustment screw (907), a torque top spring seat (911), a torque top spring (912), a first torque retaining seat (913), a torque retaining pin (915), a second torque retaining seat (916), an inner torque top rod (917), and a top rod limiting ball seat (918). The torque adjustment handle (901) is fitted with an adjustment limit ring (902), and a fixed torsion rod (903) is rotatably fitted inside the torque adjustment handle (901). A top rod limit ball seat (918) is provided inside the fixed torsion rod (903). A torque fixing pin (904) is inserted into the top rod limit ball seat (918). A torque support arm connector (905) is integrally provided at the upper end of the top rod limit ball seat (918), and an inner torque top rod (917) is integrally provided at the lower end of the top rod limit ball seat (918). The lower end of the inner torque push rod (917) is fixedly installed with a second torque bracket (916), and a first torque bracket (913) is provided below the second torque bracket (916). A torque pin (915) is movably arranged between the first torque bracket (913) and the second torque bracket (916). The first torque holder (913) is provided with a torque top spring (912) at its lower end, the torque top spring (912) is provided with a torque top spring seat (911) at its lower end, and the torque top spring seat (911) is provided with a torque adjusting screw (907) at its lower end.

6. A permanent magnet motor for engineering machinery according to claim 5, characterized in that, The adjusting limit ring (902) is provided with a limit ring spring (919), and a plurality of limit bead slots (920) are provided on the inner wall of the adjusting limit ring (902). The torque adjusting handle (901) is provided with a sliding limit bead (921) on its side and rotatably located on the adjusting limit ring (902).

7. A permanent magnet motor for engineering machinery according to claim 6, characterized in that, A torque adjusting nut (906) is provided inside the torque adjusting handle (901). The torque adjusting nut (906) and the torque adjusting screw (907) are interlocked. A limit ring mounting cover (909) is integrally provided at the lower end of the fixed torsion bar (903). A screw limit ring (908) is fixedly installed inside the limit ring mounting cover (909). A first sealing ring (910) is provided between the outer side of the limiting ring mounting cover (909) and the torque adjusting handle (901), and a second sealing ring (914) is provided between the inner top wall of the torque adjusting handle (901) and the fixed torsion bar (903).

8. A permanent magnet motor for engineering machinery according to claim 7, characterized in that, The upper end of the torque arm connector (905) is fixedly connected to the torque arm (8).

9. A permanent magnet motor for engineering machinery according to claim 8, characterized in that, The motor torque transmission base (12) includes: a gear plate connecting seat (1201), a fixed base ring (1202), a motor connecting seat (1203), a motor adjusting top seat (1204), a lifting limit ring (1205), a lifting limit platform (1206), a lifting screw (1207), and a lifting screw hole (1208). The upper end of the gear plate connecting seat (1201) is integrally provided with a fixed base ring (1202), and a lifting limit ring (1205) is integrally provided inside the fixed base ring (1202). A lifting limit platform (1206) is slidably provided inside the lifting limit ring (1205). A motor connecting seat (1203) is integrally provided on the upper end of the lifting limit platform (1206). A lifting screw hole (1208) is opened inside the lifting limit platform (1206). A lifting screw (1207) is rotatably installed inside the lifting screw hole (1208), and a motor adjustment top seat (1204) is integrally installed at the lower end of the lifting screw (1207).

10. A permanent magnet motor for engineering machinery according to claim 9, characterized in that, The gear plate connecting seat (1201) is integrated with the second torque gear plate (11).

Images