Removable direct drive permanent magnet synchronous motor

Abstract

The present invention relates to the field of motor technology, and in particular to a detachable direct-drive permanent magnet synchronous motor, comprising a permanent magnet synchronous motor body, and a first annular assembly groove is provided on the left side of the outer arc surface of the permanent magnet synchronous motor body. The detachable direct-drive permanent magnet synchronous motor of the present invention has a spiral structure cooling channel connected to the first annular assembly groove and the second annular assembly groove respectively provided inside, and liquid cooling and direct drive are used to quickly dissipate heat, so that the motor can operate at high load for a long time, and the stability is greatly improved; by using a Z-shaped structure to assemble spring sheets on the inner side, a detachable external cover is elastically sleeved on the first annular assembly groove and the second annular assembly groove, thereby improving the lateral shock absorption performance of the permanent magnet synchronous motor, and at the same time, a bottom assembly seat is elastically assembled on the outer side of the detachable external cover, which can improve the lateral shock absorption and reset performance of the entire permanent magnet synchronous motor, thereby greatly improving the overall stability.

Description

Technical Field

[0001] The present invention relates to the technical field of motors, and in particular to a detachable direct-drive permanent magnet synchronous motor. Background Art

[0002] The permanent magnet synchronous motor is composed of stator, rotor and end cover. It uses permanent magnets to provide excitation, which can save the collector ring and brushes that are prone to problems, greatly simplify the structure of the motor, thereby reducing the processing and assembly costs of the motor and improving the reliability of the motor operation; and because no excitation current is required, there is no excitation loss, which improves the efficiency and power density of the motor.

[0003] When the motor is running at high load for a long time, a lot of vibration will be generated, which will not only affect the stability and safety of the assembly, but also generate a lot of heat inside. If it cannot be removed immediately, it will easily lead to a decrease in working efficiency and service life, and it will also be difficult to maintain later. Summary of the invention

[0004] The technical problem to be solved by the present invention is: in order to solve the problems existing in the above-mentioned background technology, an improved detachable direct-drive permanent magnet synchronous motor is provided to solve the problem that the motor will generate a large amount of vibration during long-term high-load operation, which will not only affect the assembly stability and safety, but also generate a large amount of heat inside. If it cannot be removed in time, it will easily lead to a decrease in working efficiency and service life and difficulty in subsequent maintenance.

[0005] The technical solution adopted by the present invention to solve its technical problems is: a detachable direct-drive permanent magnet synchronous motor, comprising a permanent magnet synchronous motor body, a first annular assembly groove is opened on the left side of the outer arc surface of the permanent magnet synchronous motor body, a second annular assembly groove is opened on the right side of the outer arc surface of the permanent magnet synchronous motor body, a spiral structure cooling channel is opened inside the outer shell of the permanent magnet synchronous motor body, a detachable external cover is elastically sleeved on the first annular assembly groove and the second annular assembly groove, and an inner hydraulic drive mechanism for transmitting and connecting the lateral drive shaft of the permanent magnet synchronous motor body is movably assembled inside the detachable external cover.

[0006] The openings on both sides of the spiral structure cooling channel are respectively arranged on the inner side surfaces of the first annular assembly groove and the second annular assembly groove.

[0007] A plurality of Z-shaped inner assembly spring pieces for assembling a detachable outer cover are fixedly assembled on the inner arc surfaces of the first annular assembly groove and the second annular assembly groove.

[0008] The upper ends of the side walls of the detachable external cover are fixedly connected with an upper guide tube with an outer arc-shaped integral copper heat sink, and the upper guide tube is non-fixedly connected with an internally threaded locking tube on the top thread sleeve.

[0009] The middle part of the inner arc surface of the internal thread locking tube is provided with an integrated built-in sealing ring for improving the sealing performance of the assembly, and a detachable filter element is arranged inside the built-in sealing ring.

[0010] The inner hydraulic drive mechanism includes an inner guide box fixed on the inner side of a detachable outer cover at the position of an annular first assembly groove, hydraulic blades movably assembled inside the inner guide box, a belt drive wheel movably assembled on the outer side of the inner guide box, an inner guide rail fixed on the inner side of the detachable outer cover, a sliding adjustment block elastically assembled in the inner guide rail, an elastic tensioning wheel movably assembled on the side wall of the sliding adjustment block, a belt drive wheel and a transmission belt sleeved on the outer drive shaft of the permanent magnet synchronous motor body.

[0011] The lower end of the detachable external cover has an integral bottom assembly protrusion protruding downward, and the lower end of the outer side of the bottom assembly protrusion is provided with a U-shaped bottom assembly seat. The bottom assembly protrusion is inserted into the installation blind hole on the inner side wall of the bottom assembly seat through assembly shafts on both sides and is movably connected to the bottom assembly seat.

[0012] A bottom reset spring piece is fixed on the inner bottom surface of the bottom assembly seat, and a bottom reset groove matching with the bottom reset spring piece is formed at the lower end of the bottom assembly protrusion.

[0013] A first flexible flow guide tube for connecting the spiral structure cooling channel and the internal flow guide box is installed inside the annular first assembly groove, a second flexible flow guide tube for connecting the internal flow guide box and the upper flow guide tube is installed inside the detachable external cover at the position of the annular first assembly groove, and a third flexible flow guide tube for connecting the spiral structure cooling channel and the upper flow guide tube is installed on the inner side surface of the annular second assembly groove.

[0014] A bottom assembly groove with a built-in detachable rubber anti-skid pad is provided at the lower end of the bottom assembly seat.

[0015] The beneficial effects of the present invention are:

[0016] (1) The detachable direct-drive permanent magnet synchronous motor of the present invention has a spiral structure cooling channel connected to the first annular assembly groove and the second annular assembly groove respectively, and uses liquid cooling and direct drive to quickly dissipate heat, so that the motor can operate at high load for a long time, and the stability is greatly improved;

[0017] (2) By using a Z-shaped structure to assemble a spring sheet on the inner side, a detachable external cover is elastically sleeved on the annular first assembly groove and the annular second assembly groove, thereby improving the lateral shock absorption performance of the permanent magnet synchronous motor. At the same time, a bottom assembly seat is elastically assembled on the outer side of the detachable external cover, which can improve the lateral shock absorption and reset performance of the entire permanent magnet synchronous motor, thereby greatly improving the overall stability;

[0018] (3) The heat dissipation and deflection mechanism is combined with the shock absorption mechanism, and a detachable structure design is adopted, which greatly reduces the cost of later maintenance and early assembly;

[0019] (4) The detachable external cover can be locked and fixed by being threadedly sleeved on the upper guide pipe connection end through an internal thread locking pipe, and the loading and unloading operations are simple and convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The present invention is further described below in conjunction with the accompanying drawings and embodiments.

[0021] Figure 1 It is a structural schematic diagram of the present invention.

[0022] Figure 2 It is a partial cross-sectional view of the present invention.

[0023] Figure 3 It is a side view schematic diagram of the inner side assembly spring piece assembly end of the present invention.

[0024] Figure 4 It is an internal cross-sectional view of the assembly end of the internal thread locking tube in the present invention. DETAILED DESCRIPTION

[0025] The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic diagrams, which only illustrate the basic structure of the present invention in a schematic manner, and therefore only show the components related to the present invention.

[0026] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "connected" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0027] Figure 1 , Figure 2 , Figure 3 and Figure 4The detachable direct-drive permanent magnet synchronous motor shown includes a permanent magnet synchronous motor body 1, a first annular assembly groove 2 is provided on the left side of the outer arc surface of the permanent magnet synchronous motor body 1, a second annular assembly groove 3 is provided on the right side of the outer arc surface of the permanent magnet synchronous motor body 1, a spiral structure cooling channel 4 is provided inside the outer casing of the permanent magnet synchronous motor body 1, a detachable external cover 5 is elastically sleeved on the first annular assembly groove 2 and the second annular assembly groove 3, and an inner hydraulic drive mechanism for transmitting and connecting the lateral drive shaft of the permanent magnet synchronous motor body 1 is movably installed inside the detachable external cover 5.

[0028] In order to cooperate with the connecting assembly, the openings on both sides of the spiral structure cooling channel 4 are respectively opened on the inner side surfaces of the first annular assembly groove 2 and the second annular assembly groove 3.

[0029] In order to cooperate with internal extrusion shock absorption, nine Z-shaped inner assembly spring pieces 6 for assembling the detachable outer cover 5 are fixedly assembled on the inner arc surfaces of the first annular assembly groove 2 and the second annular assembly groove 3 .

[0030] The inner arc surfaces of the first annular assembly groove 2 and the second annular assembly groove 3 are provided with assembly slots for installing the inner assembly spring piece 6, and the upper side of the inner side surface of the detachable outer cover has an integral inner plug-in frame for plugging the inner assembly spring piece 6.

[0031] In order to cooperate with the linked diversion and threaded locking fixation, the upper ends of the side walls of the detachable external cover 5 are fixedly connected to the upper guide tube 8 with the outer arc-shaped integrated copper heat sink 7, and the upper guide tube 8 is non-fixedly connected to the top threaded sleeve with an internal threaded locking tube 9.

[0032] There can be multiple upper guide tubes 8 and internal thread locking tubes 9. The upper guide tubes 8 and internal thread locking tubes 9 at the top are used for flow connection, while the upper guide tubes 8 and internal thread locking tubes 9 at other positions are used to assemble the detachable external cover 5.

[0033] In order to improve the sealing of the assembly end and cooperate with internal filtration, the middle of the inner arc surface of the internal thread locking tube 9 is provided with an integrated built-in sealing ring 10 for improving the sealing of the assembly, and a detachable filter element 11 is arranged inside the built-in sealing ring 10.

[0034] In order to cooperate with the internal transmission direct drive and maintain the stability of the tension force under the vibration state, the inner hydraulic drive mechanism includes an internal guide box 12 fixed on the inner side of the removable external cover 5 at the position of the annular first assembly groove 2, a hydraulic blade 13 movably assembled inside the internal guide box 12, a belt drive pulley 14 movably assembled on the outside of the internal guide box 12, an inner guide rail 15 fixed on the inner side of the removable external cover 5, a sliding adjustment block 16 elastically assembled in the inner guide rail 15, an elastic tensioning wheel 17 movably assembled on the side wall of the sliding adjustment block 16, a belt drive wheel 18 and a transmission belt 19 sleeved on the outer drive shaft of the permanent magnet synchronous motor body 1.

[0035] The transmission belt 19 is respectively mounted on the belt drive wheel 14, the elastic tension wheel 17 and the belt drive wheel 18, and the belt drive wheel 18 is directly driven by the outer drive shaft of the permanent magnet synchronous motor body 1, thereby driving the hydraulic blades 13 to rotate and driving the internal coolant to circulate, thereby achieving the purpose of rapid heat dissipation.

[0036] In order to cooperate with the bottom movable assembly, the lower end of the detachable external cover 5 has an integral bottom assembly protrusion 20 protruding downward, and a U-shaped bottom assembly seat 21 is provided at the lower end of the outer side of the bottom assembly protrusion 20. The bottom assembly protrusion 20 is inserted into the mounting blind hole on the inner wall of the bottom assembly seat 21 through the assembly axes on both sides and is movably connected to the bottom assembly seat 21.

[0037] In order to cooperate with elastic assembly and resetting, a bottom resetting spring piece 22 is fixed on the inner bottom surface of the bottom assembly seat 21 , and a bottom resetting groove 23 cooperating with the bottom resetting spring piece 22 is formed at the lower end of the bottom assembly protrusion 20 .

[0038] The bottom reset spring piece 22 is inserted into the bottom reset groove 23 to realize elastic compression and reset of the detachable external cover 5 .

[0039] In order to facilitate the connection, a first flexible guide tube 24 for connecting the spiral structure cooling channel 4 and the internal guide box 12 is installed inside the annular first assembly groove 2, a second flexible guide tube 25 for connecting the internal guide box 12 and the upper guide tube 8 is installed inside the detachable external cover 5 at the position of the annular first assembly groove 2, and a third flexible guide tube 26 for connecting the spiral structure cooling channel 4 and the upper guide tube 8 is installed on the inner side surface of the annular second assembly groove 3.

[0040] The spiral structure cooling channel 4, the detachable external cover 5 and the internal guide box 12 assembly ends are all provided with internal threaded sinking holes, and then the first flexible guide tube 24, the second flexible guide tube 25 and the third flexible guide tube 26 have external threaded assembly nozzles matching the internal threaded sinking holes at both ends.

[0041] The permanent magnet synchronous motor drives the liquid inside the internal guide box 12 to flow into the spiral structure cooling channel 4 through the first flexible guide tube 24 through rotation, and then is introduced from the spiral structure cooling channel 4 into the third flexible guide tube 26, and then from the third flexible guide tube 26 into the upper guide tube 8, and then is guided back to the internal guide box 12 from the second flexible guide tube 25.

[0042] In order to improve the anti-skid property and shock absorption property of the bottom, a bottom assembly groove with a built-in detachable rubber anti-skid pad 27 is formed at the lower end of the bottom assembly seat 21 .

[0043] A strip-shaped assembly opening for assembling bolts is provided inside the bottom assembly seat 21 and the detachable rubber anti-skid pad 27 .

[0044] The detachable direct-drive permanent magnet synchronous motor of the present invention is internally provided with a spiral structure cooling channel 4 which is respectively connected with the annular first assembly groove 2 and the annular second assembly groove 3, and uses liquid cooling and direct drive to quickly dissipate heat, so that the motor can operate at high load for a long time, and the stability is greatly improved; by adopting the Z-shaped structure inner side assembly spring piece 6, a detachable external cover 5 is elastically sleeved on the annular first assembly groove 2 and the annular second assembly groove 3, thereby improving the lateral shock absorption performance of the permanent magnet synchronous motor, and at the same time, a bottom assembly seat 21 is elastically assembled on the outer side of the detachable external cover 5, which can improve the lateral shock absorption and reset performance of the entire permanent magnet synchronous motor, thereby greatly improving the overall stability; the heat dissipation and diversion mechanism and the shock absorption mechanism are combined, and a detachable structural design is adopted, which greatly reduces the later maintenance and early assembly costs; the detachable external cover 5 is threadedly sleeved on the connecting end of the upper guide tube 8 through the internal thread locking tube 9, and can be locked and fixed, and the loading and unloading operations are simple and convenient.

[0045] Based on the above ideal embodiments of the present invention, the relevant staff can make various changes and modifications without departing from the technical concept of the present invention through the above description. The technical scope of the present invention is not limited to the contents of the specification, and its technical scope must be determined according to the scope of the claims.

Claims

1. A detachable direct-drive permanent magnet synchronous motor, comprising a permanent magnet synchronous motor body (1), characterized in that: The permanent magnet synchronous motor body (1) is provided with a first annular assembly groove (2) on the left side of the outer arc surface, the permanent magnet synchronous motor body (1) is provided with a second annular assembly groove (3) on the right side of the outer arc surface, the outer casing of the permanent magnet synchronous motor body (1) is provided with a spiral structure cooling channel (4), the first annular assembly groove (2) and the second annular assembly groove (3) are elastically sleeved with a detachable external cover (5), the detachable external cover (5) is movably provided with an inner hydraulic drive mechanism for transmission connection to the lateral drive shaft of the permanent magnet synchronous motor body (1), and the two side openings of the spiral structure cooling channel (4) are respectively provided in the first annular assembly groove (2) and the second annular assembly groove (3). On the inner side surface of the assembly groove (3), a plurality of Z-shaped inner assembly springs (6) for assembling a detachable external cover are fixedly mounted on the inner arc surface of the annular first assembly groove (2) and the annular second assembly groove (3); the upper end of the side wall of the detachable external cover (5) is fixedly connected to an upper guide tube (8) of an outer arc-shaped integral copper heat sink (7); the upper guide tube (8) is non-fixedly connected to the top thread sleeve of an internal thread locking tube (9); the middle part of the inner arc surface of the internal thread locking tube (9) has an integral structure built-in sealing ring (10) for improving assembly sealing performance; a detachable filter element (11) is arranged inside the built-in sealing ring (10); the inner hydraulic drive mechanism The invention comprises an inner guide box (12) fixed on the inner side of a detachable outer cover (5) at the position of an annular first assembly groove (2), a hydraulic blade (13) movably mounted inside the inner guide box (12), a belt drive wheel (14) movably mounted outside the inner guide box (12), an inner guide rail (15) fixed on the inner side of the detachable outer cover (5), a sliding adjustment block (16) elastically mounted inside the inner guide rail (15), an elastic tensioning wheel (17) movably mounted on the side wall of the sliding adjustment block (16), a belt drive wheel (18) sleeved on the outer drive shaft of the permanent magnet synchronous motor body (1), and a transmission belt (19), wherein the lower end of the detachable outer cover (5) has a downwardly extending A raised integral structure bottom assembly protrusion (20), a U-shaped structure bottom assembly seat (21) is arranged at the lower end of the outer side of the bottom assembly protrusion (20), the bottom assembly protrusion (20) is inserted into the installation blind hole on the inner wall of the bottom assembly seat (21) through the assembly shafts on both sides and is movably connected to the bottom assembly seat (21), a bottom reset spring sheet (22) is fixed on the inner bottom surface of the bottom assembly seat (21), a bottom reset groove (23) matching with the bottom reset spring sheet (22) is opened at the lower end of the bottom assembly protrusion (20), and a first flexible guide tube (24) for connecting the spiral structure cooling channel (4) and the internal guide box (12) is installed inside the annular first assembly groove (2),A second flexible flow guide tube (25) for connecting the internal flow guide box (12) and the upper flow guide tube (8) is installed inside the detachable external cover (5) at the position of the annular first assembly groove (2), a third flexible flow guide tube (26) for connecting the spiral structure cooling channel (4) and the upper flow guide tube (8) is installed on the inner side surface of the annular second assembly groove (3), and a bottom assembly groove with a built-in detachable rubber anti-skid pad (27) is opened at the lower end of the bottom assembly seat (21).

Images