Cold contraction assembly structure of new energy motor shaft

Abstract

The invention relates to the technical field of motor shaft assembly, and provides a new energy motor shaft cold shrinkage assembly structure which comprises a supporting seat, a first supporting plate, a first supporting ring and a second supporting ring are installed on the supporting seat, a first hydraulic rod is installed in the first supporting plate, and a second supporting plate is installed at the top of the first supporting plate. A feeding port is formed in the second supporting plate, a conveying plate is installed on the second supporting plate, a first connecting rod is installed on the first supporting plate, the first connecting rod is fixedly connected with the first supporting ring, and a second connecting rod is fixedly connected to the second supporting ring. By means of the technical scheme, the problems that an existing cold shrinkage assembly structure cannot conduct surrounding type cooling on the motor shaft while pushing the motor shaft to move forwards, cannot be matched with a conveying assembly to continuously install the motor shaft, and cannot adapt to motor shafts of different sizes to be used when the motor shaft is installed are solved.

Description

Technical Field

[0001] The present invention relates to the technical field of motor shaft assembly, and in particular to a new energy motor shaft cold shrink assembly structure. Background Art

[0002] The performance of new energy motors directly affects the efficiency and reliability of the entire vehicle. With the popularization of electric vehicles and wind power generation, the power density, efficiency and reliability of motors have become key design considerations. One of the key components of the motor is the motor shaft, which plays a vital role in transmitting power and bearing loads. The new energy motor shaft needs to be installed using a shrink assembly device, and the existing shrink assembly device still has some shortcomings.

[0003] The invention patent with publication number CN105245065B discloses rotor assembly equipment and rotor assembly method. By setting a heat-insulating collar to insulate the heated jacket, the maximum heating temperature of the jacket can be maintained, the jacket's hot-loading time can be extended, and the jacket can be prevented from shrinking rapidly, thereby reducing the risk of the magnet being compressed and damaged, and avoiding large axial gaps between parts that affect the dynamic balance of the rotor; for the same hot-loading time, the initial heating temperature of the jacket can be reduced, ultra-high temperature operation can be avoided, and the occurrence of magnet demagnetization caused by high temperature can be avoided; the assembly success rate is improved and the scrap rate is reduced. Although the above device can realize the function of shrinkage installation, when in use, it cannot push the motor shaft forward while performing a circumferential cooling of the motor shaft, and it cannot cooperate with the conveying assembly to continuously install the motor shaft. When installing the motor shaft, it cannot adapt to motor shafts of different sizes for use. Summary of the invention

[0004] The present invention proposes a new energy motor shaft shrinkage assembly structure, which solves the problem that the existing shrinkage assembly structure cannot push the motor shaft to move forward while performing surround cooling of the motor shaft, cannot cooperate with the conveying component to continuously install the motor shaft, and cannot adapt to the use of motor shafts of different sizes when installing the motor shaft.

[0005] The technical solution of the present invention is as follows:

[0006] A new energy motor shaft shrink assembly structure comprises a support seat, a first support plate, a first support ring and a second support ring are installed on the support seat, a first hydraulic rod is installed in the first support plate, a second support plate is installed on the top of the first support plate, a feed port is provided on the second support plate, a conveying plate is installed on the second support plate, a first connecting rod is installed on the first support plate, the first connecting rod and the first support ring are fixedly connected, a second connecting rod is fixedly connected to the second support ring, a connecting frame is installed on the second connecting rod, a baffle is slidably installed in the connecting frame, a first slide plate is fixedly connected to the second support ring, A conveying assembly is arranged below the baffle, an adjusting assembly is installed on the first slide plate, a pushing assembly is installed on the first support plate, a rubber guide plate, a traction assembly and a third electric push rod are installed on the first support ring, an arc plate is fixedly connected to the top of the third electric push rod, an inner ring is slidably installed in the second support ring, a liquid nitrogen tank, a liquid nitrogen pump and a shrink assembly are installed on the inner ring, a side plate is welded on the second support ring, a second motor is installed on the side plate, a rubber runner is connected to the output shaft of the second motor, the outer side of the rubber runner and the outer side of the inner ring are both provided with transverse convex patterns, and the inner ring and the rubber runner are in contact with each other.

[0007] As a preferred solution of the present invention, the support seat is fixedly connected to the first support plate and the first support ring, the second support ring and the first slide plate are slidably connected to the support seat, and a second electric push rod is installed between the first support ring and the second support ring.

[0008] As a preferred solution of the present invention, a first motor is installed on the conveying plate, a connecting shaft is connected to the output shaft of the first motor, and a fixing plate is fixedly connected around the connecting shaft.

[0009] As a preferred solution of the present invention, the conveying assembly includes a slider slidably mounted on the first slide, a bracket is welded on the slider, a roller is rotatably mounted on the bracket, a conveyor belt is arranged on the outer side of the roller, and a second spring is installed between the slider and the first slide.

[0010] As a preferred solution of the present invention, the adjustment assembly includes a second hydraulic rod fixedly connected to the first slide plate, a first connecting plate is fixedly provided on the second hydraulic rod, a second connecting plate is fixedly installed on the first connecting plate, a rotating shaft is rotatably connected to the second connecting plate, and the top of the rotating shaft abuts against the bottom of the conveyor belt.

[0011] As a preferred solution of the present invention, the pushing assembly includes a connecting plate fixedly connected to the first hydraulic rod, a first push rod is fixedly arranged on the connecting plate, a connecting block is slidably installed on the outer side of the first push rod, a through hole is opened in the connecting block, a first spring is arranged in the through hole, a second push rod is arranged on the front side of the first spring, and a third hydraulic rod is installed between the connecting block and the connecting plate.

[0012] As a preferred solution of the present invention, the traction assembly includes a connecting block fixedly connected to the first support ring, the connecting block is equipped with a first electric push rod and a third connecting plate, the third connecting plate is rotatably equipped with a guide wheel, the top of the first support ring is an open structure, and second slides are slidably installed on both sides of the top opening of the first support ring, the second slide is fixedly connected to the rubber guide plate, and a traction steel rope is fixedly connected to the rubber guide plate, and the traction steel rope is connected to the top of the first electric push rod through the guide wheel.

[0013] As a preferred solution of the present invention, balls are installed on the arc plate, and the balls are evenly distributed on the arc plate.

[0014] As a preferred solution of the present invention, the interior of the inner ring is hollow, the inner ring and the second support ring are both three-quarter circular ring structures, the shrink assembly includes a first connecting tube connected to the inner ring, a fourth electric push rod is installed on the first connecting tube, a second connecting tube is fixedly connected to the fourth electric push rod, a lap plate is installed on the second connecting tube, a turntable is rotatably installed on the lap plate, a screw hole is opened on the turntable, and a nozzle is installed on the inner thread of the screw hole.

[0015] As a preferred solution of the present invention, a damping pad is fixedly provided on the lap plate, and the damping pad is convex all around.

[0016] The working principle and beneficial effects of the present invention are:

[0017] 1. The device is provided with a push assembly, and a plurality of second push rods evenly arranged on the push assembly cooperate with the first spring, so that when the device pushes the motor shaft, it can adaptively adjust the number of actions on the motor shaft according to the size of the motor shaft, thereby adapting to the use of motor shafts of different sizes.

[0018] 2. Through the second support ring and the inner ring on the device, since the inner ring can rotate in the second support ring, the second motor can be used to drive the rubber wheel to rotate, thereby driving the inner ring to rotate. When the inner ring rotates, the motor shaft can be subjected to shrinkage treatment through the shrinkage component, so as to cooperate with the push component to realize the surrounding shrinkage treatment, and the motor shaft can be continuously pushed while the surrounding temperature is reduced, so that the motor shaft can be evenly cooled. The device can push the motor shaft forward while performing surrounding cooling on the motor shaft, thereby improving the shrinkage installation effect of the device.

[0019] 3. By setting up the shrink assembly, the turntable on the shrink assembly is rotated to switch the nozzles in different screw holes, so that the device can use different nozzles as needed, thereby ensuring appropriate coverage when shrinking and installing motor shafts of different sizes, ensuring that the motor shaft is evenly cooled.

[0020] 4. The motor to be installed is placed on the surface of the conveyor belt through the set feed port, conveying plate, conveying assembly and adjustment assembly, and is transported to the position of the baffle through the conveyor belt. Then, the motor shaft is shrink-fitted and installed. During installation, the extension of the second electric push rod can be adjusted according to the length of the motor shaft, and the height of the second hydraulic rod can be adjusted according to the height of the motor, so that the motor to be installed and the motor shaft can be aligned, thereby enhancing the application scope of the device. The device can intermittently drop the motor shaft, and cooperate with the conveyor belt to enable the device to continuously install the motor shaft. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0022] Figure 1 This is a schematic diagram of the overall structure of a new energy motor shaft shrink assembly structure of the present invention;

[0023] Figure 2 yes Figure 1 A magnified schematic diagram of the structure at center A;

[0024] Figure 3 yes Figure 1 A magnified schematic diagram of the structure at B in the middle;

[0025] Figure 4 It is a schematic diagram of the connection structure between the first support plate and the first hydraulic rod of the present invention;

[0026] Figure 5 It is a schematic diagram of the split structure of the connecting plate and the third hydraulic rod of the present invention;

[0027] Figure 6 yes Figure 5 A magnified schematic diagram of the structure at C in the middle;

[0028] Figure 7It is a schematic diagram of the connection structure between the rubber guide plate and the side plate of the present invention;

[0029] Figure 8 It is a schematic diagram of the connection structure between the liquid nitrogen pump and the inner ring of the present invention;

[0030] Fig. 9 It is a schematic diagram of the connection structure between the second support ring and the inner ring of the present invention;

[0031] Fig.10 It is a schematic diagram of the split structure of the cold shrink assembly of the present invention.

[0032] 1. Support seat; 2. First support plate; 3. First hydraulic rod; 4. Second support plate; 5. Feed port; 6. Conveying plate; 7. First motor; 8. Connecting shaft; 9. Fixing plate; 10. First connecting rod; 11. First support ring; 12. Second support ring; 13. Second connecting rod; 14. Connecting frame; 15. First slide plate; 16. Conveying assembly; 1601. Sliding block; 1602. Bracket; 1603. Roller; 1604. Conveying belt; 1605. Second spring; 17. Baffle; 18. Adjusting assembly; 1801. Second hydraulic rod; 1802. First connecting plate; 1803. Second connecting plate; 1804. Rotating shaft; 19. Pushing assembly; 1901. Connecting plate; 1902. Third hydraulic rod; 1903. Connecting block; 1904. First Push rod; 1905, first spring; 1906, second push rod; 1907, through hole; 20, rubber guide plate; 21, traction assembly; 2101, connecting block; 2102, first electric push rod; 2103, traction rope; 2104, guide wheel; 2105, third connecting plate; 2106, second slide plate; 22, second electric push rod; 23, third electric push rod; 24, arc plate; 25, ball; 26, liquid nitrogen tank; 27, liquid nitrogen pump; 28, inner ring; 29, side plate; 30, second motor; 31, rubber wheel; 32, shrink assembly; 3201, first connecting pipe; 3202, fourth electric push rod; 3203, second connecting pipe; 3204, lap plate; 3205, damping pad; 3206, turntable; 3207, screw hole; 3208, nozzle. DETAILED DESCRIPTION

[0033] The following will be combined with 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.

[0034] Example 1

[0035] like Figure 1-Figure 10As shown, this embodiment proposes a new energy motor shaft shrink assembly structure, including a support seat 1, a first support plate 2, a first support ring 11 and a second support ring 12 are installed on the support seat 1, the support seat 1 is used to support the first support plate 2, the first support ring 11 and the second support ring 12, a first hydraulic rod 3 is installed in the first support plate 2, a second support plate 4 is installed on the top of the first support plate 2, the second support plate 4 is not connected to the second support ring 12, a feed port 5 is opened on the second support plate 4, and a conveying plate 6 is installed on the second support plate 4 A first connecting rod 10 is installed on the first support plate 2, and the first connecting rod 10 and the first support ring 11 are fixedly connected. A second connecting rod 13 is fixedly connected to the second support ring 12, and a connecting frame 14 is installed on the second connecting rod 13. A baffle 17 is slidably installed in the connecting frame 14. A first slide plate 15 is fixedly connected to the second support ring 12, and a conveying assembly 16 is arranged below the baffle 17. The conveying assembly 16 is used to convey the motor housing to be installed with the motor shaft. An adjusting assembly 18 is installed on the first slide plate 15, and the adjusting assembly 18 is used to In order to change the conveying height of the conveying assembly 16, so that the motor shaft and the motor to be installed are aligned, a push assembly 19 is installed on the first support plate 2, and the push assembly 19 is used to push the motor shaft to the inside of the motor housing, and can adapt to motor shafts of different sizes for use, and a rubber guide plate 20, a traction assembly 21 and a third electric push rod 23 are installed on the first support ring 11. The rubber guide plate 20 is used to guide the fallen motor shaft, so that the motor shaft can be stably conveyed to the installation area to cooperate with the push assembly 19 for installation, and the third electric push rod 23 is installed. The top of the push rod 23 is fixedly connected with an arc plate 24, which is used to support the falling motor shaft. An inner ring 28 is slidably installed in the second support ring 12, on which a liquid nitrogen tank 26, a liquid nitrogen pump 27 and a cold shrink assembly 32 are installed. A side plate 29 is welded on the second support ring 12, on which a second motor 30 is installed. A rubber runner 31 is connected to the output shaft of the second motor 30, and the outer side of the rubber runner 31 and the outer side of the inner ring 28 are both provided with transverse convex patterns, and the inner ring 28 and the rubber runner 31 are in contact with each other. The second motor 30 drives the rubber runner 31 to rotate, thereby driving the inner ring 28 to rotate, and the inner ring 28 can stably rotate inside the second support ring 12, and the liquid nitrogen in the liquid nitrogen tank 26 is sent into the inner ring 28 by the liquid nitrogen pump 27, and then the cold shrink assembly 32 performs a surrounding cooling on the motor shaft that is continuously pushed forward.

[0036] Example 2

[0037] like Figure 1-Figure 10 As shown, based on the same concept as the above-mentioned embodiment 1, this embodiment also proposes a new energy motor shaft shrink assembly structure.

[0038] In this embodiment, the support seat 1 is fixedly connected to the first support plate 2 and the first support ring 11, the second support ring 12 and the first slide plate 15 are slidably connected to the support seat 1, and a second electric push rod 22 is installed between the first support ring 11 and the second support ring 12. The second electric push rod 22 can adjust the distance between the first support ring 11 and the second support ring 12, so as to adapt to the use of motor shafts of different lengths, thereby enhancing the scope of application of the device.

[0039] In this embodiment, a first motor 7 is installed on the conveying plate 6, and a connecting shaft 8 is connected to the output shaft of the first motor 7. Fixed plates 9 are fixedly connected to the four sides of the connecting shaft 8. The connecting shaft 8 is driven to rotate by the first motor 7 on the device. The connecting shaft 8 rotates a quarter of a turn each time. The fixed plates 9 distributed at equal angles can make the motor shafts fall one by one, so that the motor shafts can be installed one by one later.

[0040] In this embodiment, the conveying assembly 16 includes a slider 1601 slidably mounted on the first slide 15, a bracket 1602 is welded on the slider 1601, a roller 1603 is rotatably mounted on the bracket 1602, a conveyor belt 1604 is arranged on the outer side of the roller 1603, a second spring 1605 is installed between the slider 1601 and the first slide 15, the conveyor belt 1604 can convey the motor housing of the motor shaft to be installed to a suitable position for subsequent continuous installation, and the second spring 1605 facilitates automatic resetting after the height of the conveyor belt 1604 is raised.

[0041] In this embodiment, the adjustment component 18 includes a second hydraulic rod 1801 fixedly connected to the first slide plate 15, a first connecting plate 1802 is fixedly provided on the second hydraulic rod 1801, a second connecting plate 1803 is fixedly installed on the first connecting plate 1802, a rotating shaft 1804 is rotatably connected to the second connecting plate 1803, the top of the rotating shaft 1804 abuts against the bottom of the conveyor belt 1604, and the height of the first connecting plate 1802 and the second connecting plate 1803 is adjusted by the second hydraulic rod 1801, thereby changing the height of the conveyor belt 1604, so that the motor shaft and the motor can be aligned and installed later, and the rotating shaft 1804 can reduce the moving resistance of the conveyor belt 1604 when the conveyor belt 1604 continues to run.

[0042] In this embodiment, the pushing assembly 19 includes a connecting plate 1901 fixedly connected to the first hydraulic rod 3, a first push rod 1904 is fixedly arranged on the connecting plate 1901, a connecting block 1903 is slidably installed on the outer side of the first push rod 1904, a through hole 1907 is opened in the connecting block 1903, a first spring 1905 is arranged in the through hole 1907, a second push rod 1906 is arranged on the front side of the first spring 1905, and a third hydraulic rod 1902 is installed between the connecting block 1903 and the connecting plate 1901. By extending or shortening the third hydraulic rod 1902, the distance between the connecting plate 1901 and the connecting block 1903 is changed, thereby changing the initial position of the second push rod 1906 at the front end of the first spring 1905. When pushing the motor shaft, different numbers of second push rods 1906 can act on the motor shaft to push the motor shaft forward so as to adapt to the installation of motor shafts with different diameters.

[0043] In this embodiment, the traction assembly 21 includes a connecting block 2101 fixedly connected to the first support ring 11, and a first electric push rod 2102 and a third connecting plate 2105 are installed on the connecting block 2101. A guide wheel 2104 is rotatably installed on the third connecting plate 2105. The top of the first support ring 11 is an open structure, and second slide plates 2106 are slidably installed on both sides of the top opening of the first support ring 11. The second slide plate 2106 and the rubber guide plate 20 are fixedly connected. A traction steel rope 2103 is fixedly connected to the rubber guide plate 20, and the traction steel rope 2103 is connected to the top of the first electric push rod 2102 through the guide wheel 2104. By extending or shortening the first electric push rod 2102, the initial position of the rubber guide plate 20 can be changed through the traction steel rope 2103 on the guide wheel 2104, so as to adapt to motor shafts of different diameters for one-by-one blanking. The second slide plate 2106 ensures that the rubber guide plate 20 can move smoothly.

[0044] In this embodiment, balls 25 are installed on the arc plate 24, and the balls 25 are evenly distributed on the arc plate 24. The arc plate 24 is used to support the motor shaft, and when the motor shaft is subsequently pushed, the resistance to the movement of the motor shaft can be reduced by the balls 25, thereby ensuring the installation quality of the device.

[0045] In this embodiment, the interior of the inner ring 28 is hollow, and the inner ring 28 and the second support ring 12 are both three-quarter annular structures. The shrink assembly 32 includes a first connecting pipe 3201 connected to the inner ring 28, a fourth electric push rod 3202 is installed on the first connecting pipe 3201, a second connecting pipe 3203 is fixedly connected to the fourth electric push rod 3202, a lap plate 3204 is installed on the second connecting pipe 3203, a turntable 3206 is rotatably installed on the lap plate 3204, a screw hole 3207 is opened on the turntable 3206, and a nozzle 3208 is installed on the inner thread of the screw hole 3207. When the air pressure in the inner ring 28 increases, the liquid nitrogen entering the inner ring 28 can enter the second connecting pipe 3203 from the first connecting pipe 3201, and finally be sprayed out from the nozzle 3208. With the rotation of the inner ring 28 and the continuous forward movement of the motor shaft, the motor shaft can be cooled in a surrounding manner to ensure the uniformity of the shrinkage of the device. Different types of nozzles 3208 can be installed in different screw holes 3207 to ensure the coverage of the cooling area.

[0046] In this embodiment, a damping pad 3205 is fixedly provided on the lap plate 3204, and the damping pad 3205 is convex all around. The convex structure of the damping pad 3205 enables the device to remain fixed after the coverage range of the cooling area is switched, thereby ensuring the stability of the device during operation.

[0047] Specifically, the present invention is a new energy motor shaft shrink assembly structure, first, as Figure 1-Figure 6 As shown, the support seat 1, the first support plate 2 and the first support ring 11 are used to support the device as a whole. The motor shaft to be installed is transported through the conveying plate 6 on the second support plate 4. When the motor shaft is transported, the connecting shaft 8 is driven to rotate intermittently by the first motor 7. The connecting shaft 8 rotates a quarter of a circle each time. The fixed plates 9 with equal angle distribution can make the motor shafts fall one by one. The motor shafts fall through the rubber guide plate 20 and are supported by the arc plate 24, so that the motor shafts can be installed one by one later. Figure 4 and Figure 5 As shown, by extending or shortening the third hydraulic rod 1902, the spacing between the connecting plate 1901 and the connecting block 1903 is changed, thereby changing the initial position of the second push rod 1906 at the front end of the first spring 1905. When the first hydraulic rod 3 extends and pushes the motor shaft, different numbers of second push rods 1906 act on the motor shaft to push the motor shaft forward, and the first spring 1905 on the rear side of the blocked second push rod 1906 will be compressed to adapt to the installation of motor shafts with different diameters.

[0048] like Figure 1-Figure 4 and Figure 7-10As shown, when the motor shaft is pushed forward, the ball 25 rotates to reduce the resistance to the movement of the motor shaft. According to the length of the motor shaft, the second electric push rod 22 between the first support ring 11 and the second support ring 12 is extended or shortened, thereby adjusting the initial positions of the second support ring 12 and the first slide plate 15 to adapt to the installation of motor shafts of different lengths. Liquid nitrogen in the liquid nitrogen tank 26 is sent into the inner cavity of the inner ring 28 by the liquid nitrogen pump 27. As the air pressure in the inner ring 28 increases, the liquid nitrogen entering the inner ring 28 can enter the second connecting pipe 3203 from the first connecting pipe 3201, and finally be ejected from the nozzle 3208. The second motor 30 on the side plate 29 drives the rubber runner 31 to rotate. The rubber runner 31 abuts against the inner ring 28 to drive the inner ring 28 to rotate. Since the side plate 29, the second motor 30 and the rubber runner 31 are arranged in two groups on the left and right sides of the device, when the opening of the inner ring 28 rotates to the rubber runner 31 on one side, the rubber runner 31 on the other side can drive the inner ring 28 to rotate continuously. With the continuous rotation of the inner ring 28 and the continuous forward movement of the motor shaft, the motor shaft can be cooled in a surrounding manner to ensure the uniformity of the cold shrinkage of the device. Different types of nozzles 3208 can be installed in different screw holes 3207 to ensure the coverage of the cooling area. After replacing the nozzles 3208 in different screw holes 3207, the damping pad 3205 on the lap plate 3204 can adjust and fix the angle of the turntable 3206, so that different nozzles 3208 can be selected for cooling according to the size of the motor shaft. During installation, the motor housing to be installed is placed on the conveyor belt 1604 of the conveying assembly 16. According to the installation position of the motor housing to be installed, the local height of the conveyor belt 1604 is changed, and the height of the first connecting plate 1802 and the second connecting plate 1803 is adjusted by the second hydraulic rod 1801, thereby changing the height of the local conveyor belt 1604, so that the motor shaft and the motor can be aligned and installed later. The rotating shaft 1804 can reduce the movement resistance of the conveyor belt 1604 when the conveyor belt 1604 is continuously running. When the conveyor belt 1604 is partially raised, the slider 1601 on the bracket 1602 will be pulled, so that the second spring 1605 is stretched, so that the device can adapt to the use of conveyor belts 1604 of different heights and motor housings to be installed. The device can adapt to the blanking of motor shafts of different sizes one by one by extending or shortening the first electric push rod 2102 so as to change the initial position of the rubber guide plate 20 through the traction rope 2103 on the guide wheel 2104, thereby adapting to the blanking of motor shafts of different diameters one by one, and the second slide plate 2106 ensures the smooth movement of the rubber guide plate 20.

[0049] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A new energy motor shaft shrink assembly structure, comprising a support seat (1), characterized in that: The support seat (1) is provided with a first support plate (2), a first support ring (11) and a second support ring (12); a first hydraulic rod (3) is installed in the first support plate (2); a second support plate (4) is installed on the top of the first support plate (2); a feed port (5) is provided on the second support plate (4); a conveying plate (6) is installed on the second support plate (4); a first connecting rod (10) is installed on the first support plate (2); the first connecting rod (10) and the first support ring (11) are fixedly connected; a second connecting rod (13) is fixedly connected to the second support ring (12); a connecting frame (14) is installed on the second connecting rod (13); a baffle (17) is slidably installed in the connecting frame (14); a first slide plate (15) is fixedly connected to the second support ring (12); a conveying assembly (16) is provided below the baffle (17); The first slide plate (15) is provided with an adjustment component (18), the first support plate (2) is provided with a push component (19), the first support ring (11) is provided with a rubber guide plate (20), a traction component (21) and a third electric push rod (23), the top of the third electric push rod (23) is fixedly connected with an arc plate (24), an inner ring (28) is slidably installed in the second support ring (12), a liquid nitrogen tank (26), a liquid nitrogen pump (27) and a shrinkage component (32) are installed on the inner ring (28), a side plate (29) is welded to the second support ring (12), a second motor (30) is installed on the side plate (29), a rubber rotary wheel (31) is connected to the output shaft of the second motor (30), the outer side of the rubber rotary wheel (31) and the outer side of the inner ring (28) are both provided with transverse convex patterns, and the inner ring (28) and the rubber rotary wheel (31) are in contact with each other.

2. The new energy motor shaft shrink assembly structure according to claim 1 is characterized in that: The support seat (1) is fixedly connected to the first support plate (2) and the first support ring (11); the second support ring (12) and the first slide plate (15) are slidably connected to the support seat (1); and a second electric push rod (22) is installed between the first support ring (11) and the second support ring (12).

3. The new energy motor shaft shrink assembly structure according to claim 1, characterized in that: A first motor (7) is mounted on the conveying plate (6); a connecting shaft (8) is connected to the output shaft of the first motor (7); and a fixing plate (9) is fixedly connected around the connecting shaft (8).

4. The new energy motor shaft shrink assembly structure according to claim 1, characterized in that: The conveying assembly (16) comprises a slider (1601) slidably mounted on the first slide plate (15); a bracket (1602) is welded to the slider (1601); a roller (1603) is rotatably mounted on the bracket (1602); a conveying belt (1604) is arranged on the outer side of the roller (1603); and a second spring (1605) is installed between the slider (1601) and the first slide plate (15).

5. The new energy motor shaft shrink assembly structure according to claim 4 is characterized in that: The adjustment assembly (18) includes a second hydraulic rod (1801) fixedly connected to the first slide plate (15), a first connecting plate (1802) being fixedly provided on the second hydraulic rod (1801), a second connecting plate (1803) being fixedly installed on the first connecting plate (1802), a rotating shaft (1804) being rotatably connected to the second connecting plate (1803), and a top of the rotating shaft (1804) abutting against a bottom of the conveyor belt (1604).

6. The new energy motor shaft shrink assembly structure according to claim 1, characterized in that: The pushing assembly (19) includes a connecting plate (1901) fixedly connected to the first hydraulic rod (3), a first push rod (1904) fixedly arranged on the connecting plate (1901), a connecting block (1903) slidably installed on the outer side of the first push rod (1904), a through hole (1907) is opened in the connecting block (1903), a first spring (1905) is arranged in the through hole (1907), a second push rod (1906) is arranged on the front side of the first spring (1905), and a third hydraulic rod (1902) is installed between the connecting block (1903) and the connecting plate (1901).

7. The new energy motor shaft shrink assembly structure according to claim 1, characterized in that: The traction assembly (21) comprises a connection block (2101) fixedly connected to the first support ring (11); a first electric push rod (2102) and a third connecting plate (2105) are installed on the connection block (2101); a guide wheel (2104) is rotatably installed on the third connecting plate (2105); the top of the first support ring (11) is an open structure; second slide plates (2106) are slidably installed on both sides of the top opening of the first support ring (11); the second slide plate (2106) and the rubber guide plate (20) are fixedly connected; a traction steel rope (2103) is fixedly connected to the rubber guide plate (20); the traction steel rope (2103) is connected to the top of the first electric push rod (2102) through the guidance of the guide wheel (2104).

8. The new energy motor shaft shrink assembly structure according to claim 1, characterized in that: The arc-shaped plate (24) is provided with balls (25), and the balls (25) are evenly distributed on the arc-shaped plate (24).

9. The new energy motor shaft shrink assembly structure according to claim 1, characterized in that: The interior of the inner ring (28) is hollow. The inner ring (28) and the second support ring (12) are both three-quarter annular structures. The shrink assembly (32) includes a first connecting tube (3201) connected to the inner ring (28). A fourth electric push rod (3202) is installed on the first connecting tube (3201). The fourth electric push rod (3202) is fixedly connected to a second connecting tube (3203). A lap plate (3204) is installed on the second connecting tube (3203). A turntable (3206) is rotatably installed on the lap plate (3204). A screw hole (3207) is provided on the turntable (3206). A nozzle (3208) is installed in the inner thread of the screw hole (3207).

10. The new energy motor shaft cold shrink assembly structure according to claim 9, characterized in that: A damping pad (3205) is fixedly arranged on the lap plate (3204), and the damping pad (3205) is convex all around.

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