New energy automobile motor shaft core assembly, assembling equipment and assembling method

Abstract

The invention relates to the related technical field of motor shaft core assemblies, in particular to a new energy automobile motor shaft core assembly, assembling equipment and an assembling method.The new energy automobile motor shaft core assembly comprises a rotor shaft and an external member arranged on the rotor shaft, and the external member comprises an annular base, a central cylinder and a limiting wafer; a first central through hole, a second central through hole and a third central through hole through which a rotor shaft passes are respectively formed in the centers of the three parts, and the central cylinder is positioned between the ring seat and the limiting wafer; wherein a deformation structure is arranged between the ring seat and the central cylinder, the limiting wafer is directly connected with the ring seat through an assembly structure, in the working process of the automobile motor, the deformation structure can promote the limiting wafer to move in the axial direction of the rotor shaft, the axial clearance of the motor is absorbed and eliminated through the elastic deformation quantity of the deformation structure, axial movement of the motor is avoided, and the service life of the motor is prolonged. The service life of the motor is prolonged, and noise generated in the working process of the motor is effectively reduced.

Description

Technical Field

[0001] The present invention relates to the technical field related to motor shaft core components, and in particular to a motor shaft core component, assembly equipment and assembly method for a new energy vehicle. Background Art

[0002] The shaft core of an automobile motor is a key part in the drive motor. Its main function is to fix the rotor core and transmit torque. Due to the thermal expansion and contraction of mechanical parts materials, the motor rotor will be stuck in the axial direction. Therefore, when the rotor is installed in the stator to form a motor, a certain gap must be left in the axial direction.

[0003] The size of the gap has an important impact on the performance of the motor. If the axial gap is too large, it will cause large axial movement of the motor during operation, thereby increasing vibration and noise and shortening the service life of the motor; if the axial gap is too small, it will cause the motor to stall, that is, it cannot start or run normally. In order to eliminate the axial gap, most of the current methods used are graphite nylon gaskets or corrugated rings to control the axial gap.

[0004] However, the above-mentioned method of eliminating axial clearance is prone to friction noise between the washers when the motor is working, which accelerates the aging of the washers. At the same time, the assembly process is relatively complicated, which is not conducive to the convenience of daily maintenance. Therefore, the existing method of eliminating axial clearance still has room for improvement. Summary of the invention

[0005] The purpose of the present invention is to provide a new energy vehicle motor shaft core assembly, assembly equipment and assembly method to solve the problems raised in the above background technology.

[0006] To achieve the above object, the present invention provides the following technical solutions: A new energy vehicle motor shaft core assembly includes a rotor shaft and a kit arranged on the rotor shaft, the kit including: The ring seat, the central cylinder and the limiting disc are respectively provided with a first central opening, a second central opening and a third central opening for the rotor shaft to pass through at the centers of the three, and the central cylinder is located between the ring seat and the limiting disc; Among them, a deformation structure is provided between the ring seat and the central cylinder, the limiting disc is directly connected to the ring seat through an assembly structure, and the ring seat is interference fit with the rotor shaft, and the deformation structure can cause the limiting disc to move along the axial direction of the rotor shaft.

[0007] As a further solution of the present invention: the deformation structure includes a plurality of elastic arms fixedly arranged at one end of the central cylinder and a plurality of protrusions formed on the inner wall of the ring seat, the elastic arms are arranged obliquely, and the protrusions are provided with a force-bearing inclined surface cooperating with the elastic arms; Wherein, the elastic arm is made of spring steel, and a plurality of the elastic arms and the protrusion blocks are respectively distributed equidistantly along the circumference on the central cylinder and the ring seat, a plurality of positioning bosses are also provided on the inner wall of the ring seat, and a plurality of positioning holes adapted to the positioning bosses are provided at the end of the central cylinder.

[0008] As a further solution of the present invention: the assembly structure includes multiple protrusions formed on the side of the limiting disc and multiple hook-shaped protrusions formed on the inner wall of the ring seat, and the protrusions and the hook-shaped protrusions are respectively provided with matching first inclined surfaces and second inclined surfaces, the limiting disc is also provided with multiple positioning pins, and the ring seat is provided with multiple positioning sleeves adapted to the positioning pins.

[0009] An assembly device for the new energy vehicle motor shaft core assembly is used to assemble the kit onto the rotor shaft, comprising: Frame; An assembly plate, movably disposed on the frame and connected to two sets of threaded drive mechanisms mounted on the frame; A first vertical arm and a second vertical arm are respectively provided on the assembly plate, a pipe for stacking the kit is provided between the two first vertical arms, a hydraulic cylinder is installed between the two second vertical arms, a pressing cylinder for pressing the kit on the rotor shaft is provided at the movable end of the hydraulic cylinder, and the threaded driving mechanism can drive the assembly plate to move along the length direction of the frame so that the pressing cylinder and the pipe correspond to the rotor shaft respectively; A material blocking mechanism and a material discharging mechanism are installed on the pipeline. When the pipeline moves toward the upper part of the rotor shaft, the material blocking mechanism and the material discharging mechanism are triggered in sequence. The material blocking mechanism is used to receive the kit except the lowest end of the pipeline. The material discharging mechanism can release the kit at the lowest end of the pipeline so that the kit falls onto the rotor shaft, and the pressing cylinder presses the kit.

[0010] As a further solution of the present invention: the material discharging mechanism comprises two sets of structures moving toward each other arranged on the pipe and two sets of elastic telescopic structures installed on the side of the second vertical arm, the structures moving toward each other comprise a baffle plate slidingly arranged on the pipe and a follower plate fixed on the baffle plate, and the follower plate is provided with an inclined through slot; Among them, a ring body connected to the elastic telescopic structure is also slidably sleeved on the pipe, and two connecting arms are arranged on the ring body. A second column adapted to the inclined through slot is arranged at one end of the connecting arm away from the ring body, and the second column passes through the inclined through slot and is slidably connected to the follower plate.

[0011] As a further solution of the present invention: a guide rail is provided on the side of the second vertical arm, a slider is slidably embedded in the guide rail, the elastic telescopic structure includes an assembly tube fixed to the slider and a vertical rod slidably sleeved with the assembly tube, one end of the vertical rod is fixed to the ring body, and the other end is connected to a limit plate fixed to the side of the frame body through a plurality of fixed arms; Among them, the vertical rod is also fixed to a boss slidably arranged inside the assembly tube, and the interior of the assembly tube is also provided with a second cylindrical spring and a third cylindrical spring sleeved on the outer periphery of the vertical rod, the head ends of the second cylindrical spring and the third cylindrical spring are connected to the boss, and the tail ends are abutted against the inner wall of the assembly tube.

[0012] As a further solution of the present invention: the outer wall of the assembly tube is further provided with a first column, the limiting plate is provided with a first slot body and a second slot body respectively adapted to the first column body and the vertical rod, and the first column and the vertical rod have one end away from the ring body extending into the first slot body and the second slot body respectively; The first slot body includes a connected straight section and an inclined section, and the second slot body includes a connected first slot section, a second slot section, a third slot section and a fourth slot section, which can form a rectangular shape, and the length of the first slot section is greater than that of the third slot section.

[0013] As a further solution of the present invention: the outer wall of the pipeline is provided with a guide member, the material blocking mechanism includes two transverse shafts slidably arranged on the guide member, a connecting plate fixedly connecting the two transverse shafts, and first cylindrical springs slidably sleeved on the outer peripheries of the two transverse shafts, the two ends of the first cylindrical spring are respectively connected to the guide member and the connecting plate, and the pipeline is provided with a through hole for the transverse shaft to extend into; Wherein, the connecting plate is further provided with a roller, and the roller abuts against a track fixedly installed at the bottom of the limiting plate, and an inclined portion and a straight portion are formed on the track.

[0014] A method for assembling the new energy vehicle motor shaft core assembly using the assembly equipment comprises the following steps: Step 1, stack the kits to be assembled in the pipe; Step 2: The threaded drive mechanism drives the assembly plate to move forward, causing the pipeline to move to a position directly above the rotor shaft; Step 3: The material blocking mechanism and the material discharging mechanism are triggered in sequence, the material blocking mechanism receives the kits except the lowest end in the pipeline, and the material discharging mechanism releases the lowest end kit onto the rotor shaft; Step 4: The threaded drive mechanism drives the assembly plate to move in the opposite direction and reset, and the material discharge mechanism and the material blocking mechanism are triggered in sequence. The material discharge mechanism partially covers the bottom of the pipeline and receives multiple sets released by the subsequent material blocking mechanism. Step 5: The pressing cylinder reaches the position directly above the rotor shaft, and the hydraulic cylinder drives the pressing cylinder to press down the assembly on the rotor shaft, so that the assembly is completed.

[0015] Compared with the prior art, the present invention has the following beneficial effects: The ring seat, the center cylinder and the limiting disc are stacked in sequence to form a whole. Since the multiple elastic arms 6 arranged on the center cylinder at equal distances along the circumference are elastic, the whole has elasticity. The deformation of the elastic arms in the whole can drive the limiting disc to move axially on the rotor shaft, absorb and eliminate the axial clearance of the motor, avoid axial movement of the motor, increase the service life of the motor, effectively reduce the noise generated during the operation of the motor, and improve the performance of the motor. Secondly, the present application also proposes relevant assembly equipment. When assembling the kit and the rotor shaft, the reciprocating movement of the assembly plate enables the pipeline and the pressing cylinder to correspond to the rotor shaft respectively. At the same time, during the movement of the assembly plate, the coordinated action of the material discharge mechanism and the material blocking mechanism enables the kits to be assembled in the pipeline to be dropped onto the rotor shaft one by one. By pressing down the pressing cylinder, the assembly is completed, thereby realizing the automation of the assembly and simplifying the production assembly work. In addition, through mechanical interlocking, the actions of the discharge mechanism and the blocking mechanism are executed in a strict logical sequence, and the action of the discharge mechanism is driven by the rebound of the second cylindrical spring and the third cylindrical spring. Since the spring rebound is instantaneous, the release position of the kit can be guaranteed to be accurate, ensuring the accurate assembly of the kit and the rotor shaft. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a structural schematic diagram of an embodiment of a motor shaft core assembly for a new energy vehicle.

[0017] Figure 2 This is a structural schematic diagram from another angle of an embodiment of a motor shaft core assembly for a new energy vehicle.

[0018] Figure 3 This is a half-section diagram of a kit in one embodiment of a motor shaft core assembly for a new energy vehicle.

[0019] Figure 4 for Figure 3 Schematic diagram of the structure from another angle.

[0020] Figure 5 This is a structural explosion diagram of a kit in one embodiment of a motor shaft core assembly for a new energy vehicle.

[0021] Figure 6 for Figure 5 Schematic diagram of the structure from another angle.

[0022] Figure 7 for Figure 4 A magnified view of the structure at center.

[0023] Figure 8 A schematic structural diagram of an embodiment of an assembly device.

[0024] Fig. 9 A schematic structural diagram of an embodiment of an assembly device from another angle.

[0025] Fig.10 A schematic structural diagram of an embodiment of an assembly device from another angle.

[0026] Fig.11 for Fig.10 A magnified view of the structure at point B.

[0027] Fig.12 This is a schematic diagram of the frame structure in one embodiment of the assembly equipment.

[0028] Fig.13 This is a schematic diagram of the connection status of the material blocking mechanism and the material discharging mechanism with the pipeline in one embodiment of the assembly equipment.

[0029] Fig.14 A schematic diagram of the structure of a limit plate in an embodiment of an assembly device.

[0030] Fig.15 It is a structural exploded diagram of the material blocking mechanism and the material discharging mechanism in one embodiment of the assembly equipment.

[0031] In the figure: 1, ring seat; 101, first center opening; 102, positioning boss; 2, center cylinder; 201, second center opening; 202, positioning hole; 3, limiting disc; 301, third center opening; 4, rotor shaft; 5, protrusion block; 501, force-bearing inclined surface; 6, elastic arm; 7, positioning pin; 8, positioning sleeve; 9, protrusion; 901, first inclined surface; 10, hook-shaped protrusion; 1001, second inclined surface; 11, frame; 12, assembly plate; 13, guide rail; 14, first vertical arm; 15, second vertical arm; 1501, slideway; 16, drive motor; 17, screw rod; 18, connecting block; 19, hydraulic cylinder; 20, pressing cylinder; 21, pipeline; 22, Ring body; 23, guide member; 24, horizontal axis; 25, first cylindrical spring; 26, connecting plate; 2601, roller; 27, baffle; 28, follower plate; 2801, inclined through slot; 29, assembly tube; 2901, first column; 2902, boss; 30, vertical rod; 31, second cylindrical spring; 32, third cylindrical spring; 33, slider; 34, connecting arm; 3401, second column; 35, fixed arm; 36, limit plate; 3601, straight section; 3602, inclined section; 3603, first slot section; 3604, second slot section; 3605, third slot section; 3606, fourth slot section; 37, track; 3701, inclined portion; 3702, straight portion. DETAILED DESCRIPTION

[0032] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0033] In addition, when an element in the present invention is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only and are not intended to be the only embodiment.

[0034] See also Figure 1-Figure 7 In an embodiment of the present invention, a new energy vehicle motor shaft core assembly includes a rotor shaft 4 and a kit arranged on the rotor shaft 4, and the kit includes: The ring seat 1, the central cylinder 2 and the limiting disc 3 are respectively provided with a first central opening 101, a second central opening 201 and a third central opening 301 for the rotor shaft 4 to pass through at their centers, and the central cylinder 2 is located between the ring seat 1 and the limiting disc 3; Among them, a deformation structure is provided between the ring seat 1 and the central cylinder 2, the limiting disc 3 is directly connected to the ring seat 1 through an assembly structure, and the ring seat 1 is interference fit with the rotor shaft 4, and the deformation structure can cause the limiting disc 3 to move along the axial direction of the rotor shaft 4.

[0035] Specifically, when assembling the kit, the center cylinder 2 is first placed in the ring seat 1, and then the limiting disc 3 is pressed into the ring seat 1. The limiting disc 3 and the ring seat 1 are connected through the assembly structure, and the deformation structure is deformed at the same time. Finally, the assembled kit is installed on the rotor shaft 4, that is, the rotor shaft 4 passes through the first center opening 101, the second center opening 201 and the third center opening 301, and the ring seat 1 and the rotor shaft 4 are interference fit. Therefore, the The ring seat 1, the center cylinder 2 and the limiting disc 3 form a whole, and because the deformation structure can be deformed between the ring seat 1 and the limiting disc 3, the kit is a whole with elastic characteristics. During the operation of the automobile motor, the deformation structure can cause the limiting disc 3 to move axially along the rotor shaft 4, and the axial clearance of the motor is absorbed and eliminated through the elastic deformation of the deformation structure, thereby avoiding axial movement of the motor, improving the service life of the motor, and effectively reducing the noise generated during the operation of the motor.

[0036] Please refer again Figure 5 and Figure 6 The deformation structure includes a plurality of elastic arms 6 fixedly arranged at one end of the central cylinder 2 and a plurality of protrusions 5 formed on the inner wall of the ring seat 1. The elastic arms 6 are arranged obliquely, and the protrusions 5 are provided with a force-bearing inclined surface 501 matching with the elastic arms 6. The elastic arms 6 are made of spring steel, and the plurality of elastic arms 6 and the protrusions 5 are equidistantly distributed along the circumference on the central cylinder 2 and the ring seat 1, respectively. The inner wall of the ring seat 1 is also provided with a plurality of positioning bosses 102, and the end of the central cylinder 2 is provided with a plurality of positioning holes 202 matching with the positioning bosses 102.

[0037] Please refer again Figure 3 , Figure 5 , Figure 6 as well as Figure 7The assembly structure includes a plurality of protrusions 9 formed on the side of the limiting disc 3 and a plurality of hook-shaped protrusions 10 formed on the inner wall of the ring seat 1, and the protrusions 9 and the hook-shaped protrusions 10 are respectively provided with a matching first inclined surface 901 and a second inclined surface 1001, the limiting disc 3 is also provided with a plurality of positioning pins 7, and the ring seat 1 is provided with a plurality of positioning sleeves 8 adapted to the positioning pins 7.

[0038] Specifically, when assembling the ring seat 1, the center cylinder 2 and the limiting disc 3, first, the center cylinder 2 is placed in the ring seat 1 to ensure that the positioning hole 202 is aligned with the positioning protrusion 102, so as to ensure that the elastic arm 6 can accurately fit with the protrusion block 5, and then, the limiting disc 3 is pressed into the ring seat 1, and it is ensured that the positioning pin 7 is aligned with the positioning sleeve 8, so that the protrusion 9 can be aligned with the hook-shaped protrusion 10, and in the subsequent process of applying pressure to the limiting disc 3, the first inclined surface 9 01 fits with the second inclined surface 1001. As the limiting disc 3 is pressed into the ring seat 1, the hook-shaped protrusion 10 gives way and deforms toward the inside of the ring seat 1. Finally, the first inclined surface 901 is separated from the second inclined surface 1001, and the hook-shaped protrusion 10 hooks the limiting disc 3 through the protrusion 9. At the same time, the protrusion block 5 acts on the elastic arm 6, causing the elastic arm 6 to deform, so that the ring seat 1, the center cylinder 2 and the limiting disc 3 form an elastic whole.

[0039] Please refer again Figure 8-Figure 15 As another embodiment of the present invention, an assembly device for the shaft core assembly of the new energy vehicle motor is also proposed, which is used to assemble the kit onto the rotor shaft 4, and includes: Frame 11; An assembly plate 12 is movably mounted on the frame 11 and connected to two sets of threaded drive mechanisms mounted on the frame 11; Two first vertical arms 14 and second vertical arms 15 are respectively arranged on the assembly plate 12, a pipe 21 for stacking the kits is arranged between the two first vertical arms 14, a hydraulic cylinder 19 is installed between the two second vertical arms 15, a pressing cylinder 20 for pressing the kits on the rotor shaft 4 is arranged at the movable end of the hydraulic cylinder 19, and the threaded driving mechanism can drive the assembly plate 12 to move along the length direction of the frame 11, so that the pressing cylinder 20 and the pipe 21 correspond to the rotor shaft 4 respectively; The material blocking mechanism and the material discharging mechanism are installed on the pipe 21. When the pipe 21 moves toward the top of the rotor shaft 4, the material blocking mechanism and the material discharging mechanism are triggered in sequence. The material blocking mechanism is used to receive the kit except the lowermost end of the pipe 21. The material discharging mechanism can release the kit at the lowermost end of the pipe 21 so that the kit falls onto the rotor shaft 4, and the pressing cylinder 20 performs a pressing action on the kit.

[0040] Furthermore, in actual assembly work, a receiving platform for fixing the rotor shaft 4 is also provided under the frame 11. Taking the state shown in the accompanying drawings as an example, after the rotor shaft 4 is located in the assembly position, the pressing cylinder 20 is located directly above the rotor shaft 4. Subsequently, the threaded drive mechanism works to drive the assembly plate 12 to move on the frame 11, and the pipe 21 moves toward the direction directly above the rotor shaft 4. During this process, the blocking mechanism and the discharging mechanism are triggered in sequence. The blocking mechanism first receives the kits except the lowest end of the pipe 21 to ensure that the number of kits falling onto the rotor shaft 4 each time is unique. After the assembly plate 12 reaches the end of the stroke, that is, the pipe 21 is located directly above the rotor shaft 4, the discharging mechanism moves to release the kit at the lowest end of the pipe 21, so that the kit can fall onto the rotor shaft 4. Subsequently, the threaded drive mechanism drives the assembly plate 12 to move in the reverse direction and reset, so that the pressing cylinder 20 is restored to the position directly above the rotor shaft 4, and the hydraulic cylinder 19 drives the pressing cylinder 20 to press down the set on the rotor shaft 4, thereby completing the assembly of the components (i.e., the ring seat 1 and the rotor shaft 4 complete the interference fit); Among them, during the process of the assembly plate 12 moving in the reverse direction and resetting, the discharge mechanism is triggered first compared to the material blocking mechanism to cover the bottom part of the pipe 21. Then, when the material blocking mechanism is triggered, the multiple kits previously received are released, and the multiple kits are received by the discharge mechanism to facilitate feeding in the next round of assembly.

[0041] In detail, during the assembly process, the pressing cylinder 20 is used to press down to complete the assembly of the kit and the rotor shaft 4, and the pipe 21 releases the kit to be assembled onto the rotor shaft 4 after reaching the top of the rotor shaft 4. Therefore, in order to ensure the accuracy of the assembly, the movement accuracy of the assembly plate 12 must meet certain requirements. For this, the threaded drive mechanism adopts a threaded matching method to drive the movement of the assembly plate 12 on the frame 11, that is, the position switching of the pipe 21 and the pressing cylinder 20; The threaded drive mechanism includes a drive motor 16 mounted on the frame 11, a screw rod 17 rotatably mounted on the frame 11 and connected to the output end of the drive motor 16, and a connecting block 18 provided on the screw rod 17 and threadedly connected to the screw rod 17, wherein the connecting block 18 is fixed to the side of the assembly plate 12.

[0042] Please refer again Fig.11 , Fig.13 as well as Fig.15 The material discharge mechanism includes two sets of structures moving toward each other on the pipe 21 and two sets of elastic telescopic structures installed on the side of the second vertical arm 15. The structures moving toward each other include a baffle 27 slidingly arranged on the pipe 21 and a follower plate 28 fixed on the baffle 27. The follower plate 28 is provided with an inclined through slot 2801. Among them, a ring body 22 connected to the elastic telescopic structure is also slidably sleeved on the pipe 21, and two connecting arms 34 are arranged on the ring body 22. The end of the connecting arm 34 away from the ring body 22 is provided with a second column 3401 adapted to the inclined through groove 2801, and the second column 3401 passes through the inclined through groove 2801 and is slidably connected with the follower plate 28.

[0043] The side of the second vertical arm 15 is provided with a guide rail 13, and a slider 33 is slidably engaged in the guide rail 13. The elastic telescopic structure includes an assembly tube 29 fixed to the slider 33 and a vertical rod 30 slidably engaged with the assembly tube 29. One end of the vertical rod 30 is fixed to the ring body 22, and the other end is connected to a limit plate 36 fixed to the side of the frame body 11 through a plurality of fixed arms 35. The vertical rod 30 is also fixed to a boss 2902 slidably arranged inside the assembly tube 29. The assembly tube 29 is also provided with a second column spring 31 and a third column spring 32 sleeved on the outer circumference of the vertical rod 30. The head ends of the second column spring 31 and the third column spring 32 are connected to the boss 2902, and the tail ends are in contact with the inner wall of the assembly tube 29.

[0044] It should be added that when the vertical rod 30 performs the telescopic action, it needs to drive the ring body 22 to slide on the outer wall of the pipe 21. For this purpose, the second vertical arm 15 is also provided with a sliding groove 1501 for the vertical rod 30 to move.

[0045] The outer wall of the assembly tube 29 is also provided with a first column 2901, and the limiting plate 36 is provided with a first slot body and a second slot body respectively adapted to the first column body 2901 and the vertical rod 30, and the first column body 2901 and the vertical rod 30 extend into the first slot body and the second slot body respectively at one end away from the ring body 22. The first slot body includes a connected straight section 3601 and an inclined section 3602, and the second slot body includes a connected first slot section 3603, a second slot section 3604, a third slot section 3605 and a fourth slot section 3606, which can form a rectangular shape, and the length of the first slot section 3603 is greater than the length of the third slot section 3605.

[0046] Specifically, taking the state in the figure as an example, the first column 2901 is located at one end of the straight section 3601 away from the inclined section 3602, and the end of the vertical rod 30 is located at one end of the first slot section 3603 away from the second slot section 3604; When the assembly plate 12 moves and drives the pipe 21 to approach the position just above the rotor shaft 4, the vertical rod 30 moves along the first slot section 3603 toward the second slot section 3604, and the first column 2901 moves along the straight section 3601 and the inclined section 3602 in sequence. Before the first column 2901 enters the inclined section 3602, the vertical rod 30 has passed over the fourth slot section 3606; When the first column 2901 moves in the straight section 3601, the blocking mechanism is triggered to receive the set except the lowest end of the pipe 21. When the first column 2901 moves in the inclined section 3602, the assembly cylinder 29 will give way. Specifically, the assembly cylinder 29 drives the slider 33 to slide downward in the guide rail 13, and the second column spring 31 is compressed. When the vertical rod 30 moves to the connection between the first slot section 3603 and the second slot section 3604, the pipe 21 reaches the position directly above the rotor shaft 4. At this time, the second The cylindrical spring 31 rebounds, and the vertical rod 30 moves downward, quickly moves down along the second slot section 3604 to the connection between the second slot section 3604 and the third slot section 3605, and drives the ring body 22 to slide downward on the pipe 21. Correspondingly, the second column 3401 slides with the follower plate 28 through the inclined through slot 2801, so that the follower plate 28 drives the baffle plate 27 to slide toward the outside of the pipe 21. At this time, the set between the material blocking mechanism and the baffle plate 27 is released and falls onto the rotor shaft 4, waiting for the pressing cylinder 20 to press down. Subsequently, the assembly plate 12 moves in the opposite direction to reset, and the vertical rod 30 moves along the third slot section 3605 away from the second slot section 3604. The first column 2901 first moves along the inclined section 3602 to cause the assembly tube 29 to move upward and reset on the second vertical arm 15. The third column spring 32 is compressed. When the vertical rod 30 moves to the connection between the third slot section 3605 and the fourth slot section 3606, the third column spring 32 will rebound, causing the vertical rod 30 to move upward and enter the first slot section 3603. (It should be emphasized that the fourth slot section 3606 is set slightly wider to ensure that the third column spring 32 can rebound smoothly while the vertical rod 30 moves horizontally, so as to avoid the vertical rod 30 being stuck in the fourth slot section 3606 before the third column spring 32 completes the rebound). Accordingly, the second column 3401 is slidably matched with the follower plate 28 again, and the baffle plate 27 slides toward the inside of the pipe 21 to pre-accept the multiple sets that are about to fall into the pipe 21, so as to facilitate normal drop onto the rotor shaft 4 during the next round of assembly. The assembly plate 12 continues to move, and the vertical rod 30 moves within the portion of the first slot section 3603 that is longer than the third slot section 3605. During this process, the material blocking mechanism moves to release the multiple kits thereon so that the multiple kits fall onto the baffle 27.

[0047] Please refer again Fig.14 and Fig.15 The outer wall of the pipe 21 is provided with a guide member 23, the material blocking mechanism includes two transverse shafts 24 slidably arranged on the guide member 23, a connecting plate 26 fixedly connecting the two transverse shafts 24, and first cylindrical springs 25 respectively slidably sleeved on the outer peripheries of the two transverse shafts 24, the two ends of the first cylindrical spring 25 are respectively connected to the guide member 23 and the connecting plate 26, and the pipe 21 is provided with a through hole for the transverse shaft 24 to extend into; The link plate 26 is further provided with a roller 2601 , and the roller 2601 abuts against a track 37 fixedly installed at the bottom of the limiting plate 36 , and an inclined portion 3701 and a straight portion 3702 are formed on the track 37 .

[0048] In the first section of the process in which the pipe 21 moves toward the upper part of the rotor shaft 4, the roller 2601 rolls along the inclined portion 3701, and then the connecting plate 26 gives way, the first column spring 25 is compressed, and the horizontal shaft 24 extends into the pipe 21, and the horizontal shaft 24 is located in the gap between two adjacent sets to receive the sets except the lowest end of the pipe 21; On the contrary, when the pipe 21 moves away from the rotor shaft 4 and resets, the roller 2601 rolls along the straight portion 3702 and the inclined portion 3701 in sequence, and the first cylindrical spring 25 rebounds, so that the horizontal axis 24 is pulled out of the pipe 21, and the kit located above the horizontal axis 24 can fall onto the baffle 27. Therefore, when the pipe 21 moves away from the rotor shaft 4 and resets, the vertical rod 30 reaches the connection between the third slot segment 3605 and the fourth slot segment 3606 earlier than the roller 2601 rolls onto the inclined portion 3701.

[0049] As another embodiment of the present invention, a method for assembling the new energy vehicle motor shaft core assembly using the assembly equipment is also proposed, comprising the following steps: Step 1, stacking the kits to be assembled in the pipe 21; Step 2: The threaded drive mechanism drives the assembly plate 12 to move forward, causing the pipe 21 to move to a position directly above the rotor shaft 4; Step 3: The material blocking mechanism and the material discharging mechanism are triggered in sequence, the material blocking mechanism receives the kit except the lowest end in the pipe 21, and the material discharging mechanism releases the lowest end kit onto the rotor shaft 4; Step 4: The threaded drive mechanism drives the assembly plate 12 to move in the opposite direction and reset, and the material discharge mechanism and the material blocking mechanism are triggered in sequence. The material discharge mechanism shields the bottom part of the pipe 21 and receives the multiple sets released by the subsequent material blocking mechanism. Step 5: The pressing cylinder 20 reaches the position directly above the rotor shaft 4, and the hydraulic cylinder 19 drives the pressing cylinder 20 to press down the assembly on the rotor shaft 4, so that the assembly is completed.

[0050] It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above and that the invention can be implemented in other specific forms without departing from the spirit or essential features of the invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations falling within the meaning and scope of the equivalent elements of the claims be included in the invention. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.

[0051] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A new energy vehicle motor shaft core assembly, comprising a rotor shaft (4) and a kit arranged on the rotor shaft (4); It is characterized in that The kit includes: A ring seat (1), a central cylinder (2) and a limiting disc (3), wherein the centers of the three are respectively provided with a first central opening (101), a second central opening (201) and a third central opening (301) for allowing the rotor shaft (4) to pass through, and the central cylinder (2) is located between the ring seat (1) and the limiting disc (3); A deformation structure is provided between the ring seat (1) and the central cylinder (2); the limiting disc (3) and the ring seat (1) are directly connected via an assembly structure; the ring seat (1) and the rotor shaft (4) are interference fit; and the deformation structure can cause the limiting disc (3) to move along the axial direction of the rotor shaft (4).

2. A new energy vehicle motor shaft core assembly according to claim 1, characterized in that: The deformation structure comprises a plurality of elastic arms (6) fixedly arranged at one end of the central cylinder (2) and a plurality of protrusions (5) formed on the inner wall of the ring seat (1); the elastic arms (6) are arranged obliquely, and the protrusions (5) are provided with force-bearing inclined surfaces (501) cooperating with the elastic arms (6); The elastic arm (6) is made of spring steel, and a plurality of the elastic arms (6) and the protruding blocks (5) are respectively distributed equidistantly along the circumference on the central cylinder (2) and the ring seat (1), the inner wall of the ring seat (1) is also provided with a plurality of positioning bosses (102), and the end of the central cylinder (2) is provided with a plurality of positioning holes (202) adapted to the positioning bosses (102).

3. A new energy vehicle motor shaft core assembly according to claim 2, characterized in that: The assembly structure comprises a plurality of protrusions (9) formed on the side of the limiting disc (3) and a plurality of hook-shaped protrusions (10) formed on the inner wall of the ring seat (1), and the protrusions (9) and the hook-shaped protrusions (10) are respectively provided with a matching first inclined surface (901) and a second inclined surface (1001), the limiting disc (3) is also provided with a plurality of positioning pins (7), and the ring seat (1) is provided with a plurality of positioning sleeves (8) adapted to the positioning pins (7).

4. An assembly device for assembling the new energy vehicle motor shaft core assembly according to claim 1, used for assembling the kit onto the rotor shaft (4); It is characterized in that include: Frame (11); An assembly plate (12) is movably mounted on the frame (11) and connected to two sets of threaded drive mechanisms mounted on the frame (11); A first vertical arm (14) and a second vertical arm (15), two of which are respectively arranged on the assembly plate (12); a pipe (21) for stacking the kit is arranged between the two first vertical arms (14); a hydraulic cylinder (19) is installed between the two second vertical arms (15); a pressing cylinder (20) for pressing the kit on the rotor shaft (4) is arranged at the movable end of the hydraulic cylinder (19); the threaded drive mechanism is capable of driving the assembly plate (12) to move along the length direction of the frame (11) so that the pressing cylinder (20) and the pipe (21) correspond to the rotor shaft (4) respectively; A material blocking mechanism and a material discharging mechanism are installed on the pipe (21). When the pipe (21) moves toward the upper part of the rotor shaft (4), the material blocking mechanism and the material discharging mechanism are triggered in sequence. The material blocking mechanism is used to receive the set of components other than the lowermost end of the pipe (21). The material discharging mechanism can release the set of components at the lowermost end of the pipe (21) so that the set of components falls onto the rotor shaft (4), and the pressing cylinder (20) performs a pressing action on the set of components.

5. An assembly device according to claim 4, characterized in that: The material discharge mechanism comprises two sets of structures moving towards each other arranged on the pipe (21) and two sets of elastic telescopic structures installed on the side of the second vertical arm (15), the structures moving towards each other comprising a baffle (27) slidably arranged on the pipe (21) and a follower plate (28) fixed on the baffle plate (27), the follower plate (28) being provided with an inclined through slot (2801); The pipe (21) is also slidably sleeved with a ring body (22) connected to the elastic telescopic structure, the ring body (22) is provided with two connecting arms (34), one end of the connecting arm (34) away from the ring body (22) is provided with a second column (3401) adapted to the inclined through slot (2801), the second column (3401) passes through the inclined through slot (2801) and is slidably connected to the follower plate (28).

6. An assembly device according to claim 5, characterized in that: A guide rail (13) is provided on the side of the second vertical arm (15), a slider (33) is slidably engaged in the guide rail (13), the elastic telescopic structure comprises an assembly tube (29) fixed to the slider (33) and a vertical rod (30) slidably engaged with the assembly tube (29), one end of the vertical rod (30) is fixed to the ring body (22), and the other end is connected to a limit plate (36) fixed to the side of the frame body (11) through a plurality of fixed arms (35); The vertical rod (30) is also fixed to a boss (2902) slidably arranged inside the assembly tube (29); the interior of the assembly tube (29) is also provided with a second columnar spring (31) and a third columnar spring (32) sleeved on the outer circumference of the vertical rod (30); the head ends of the second columnar spring (31) and the third columnar spring (32) are connected to the boss (2902), and the tail ends are in contact with the inner wall of the assembly tube (29).

7. An assembly device according to claim 6, characterized in that: The outer wall of the assembly cylinder (29) is further provided with a first column (2901); the limiting plate (36) is provided with a first groove body and a second groove body respectively adapted to the first column body (2901) and the vertical rod (30); the first column body (2901) and the vertical rod (30) have one end away from the ring body (22) extending into the first groove body and the second groove body respectively; The first trough body comprises a connected straight section (3601) and an inclined section (3602); the second trough body comprises a connected first trough section (3603), a second trough section (3604), a third trough section (3605) and a fourth trough section (3606); the four trough sections are capable of forming a rectangular shape, and the length of the first trough section (3603) is greater than the length of the third trough section (3605).

8. An assembly device according to claim 7, characterized in that: The outer wall of the pipe (21) is provided with a guide member (23), the material blocking mechanism comprises two transverse shafts (24) slidably arranged on the guide member (23), a connecting plate (26) fixedly connecting the two transverse shafts (24), and first cylindrical springs (25) slidably sleeved on the outer circumferences of the two transverse shafts (24), the two ends of the first cylindrical spring (25) are respectively connected to the guide member (23) and the connecting plate (26), and the pipe (21) is provided with a through hole for the transverse shaft (24) to extend therein; The link plate (26) is further provided with a roller (2601), the roller (2601) abuts against a track (37) fixedly mounted on the bottom of the limit plate (36), and the track (37) is formed with an inclined portion (3701) and a straight portion (3702).

9. A method for assembling the new energy vehicle motor shaft core assembly using the assembly equipment as claimed in claim 4, characterized in that: The following steps are involved: Step 1, stacking the kit to be assembled in the pipe (21); Step 2: The threaded drive mechanism drives the assembly plate (12) to move in a positive direction, causing the pipe (21) to move to a position directly above the rotor shaft (4); Step three, the material blocking mechanism and the material discharging mechanism are triggered in sequence, the material blocking mechanism receives the set except the lowest end in the pipeline (21), and the material discharging mechanism releases the lowest end of the set onto the rotor shaft (4); Step 4: the threaded drive mechanism drives the assembly plate (12) to move in the opposite direction and reset, and the material discharge mechanism and the material blocking mechanism are triggered in sequence, and the material discharge mechanism partially covers the bottom of the pipe (21) to receive the multiple sets released by the subsequent material blocking mechanism; Step five: the pressing cylinder (20) reaches a position directly above the rotor shaft (4), and the hydraulic cylinder (19) drives the pressing cylinder (20) to press down the assembly located on the rotor shaft (4), so that the assembly is completed.

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