Energy-saving motor rotating shaft convenient to assemble and preparation process

Abstract

The energy-saving motor rotating shaft convenient to assemble comprises a rotating shaft main body, a connecting structure and an external connecting shaft, and the rotating shaft main body is connected with the external connecting shaft through the connecting structure; the connecting structure comprises a main connecting assembly installed at the end of the rotating shaft body and an auxiliary connecting assembly installed at the end of the external connecting shaft, and the main connecting assembly and the auxiliary connecting assembly are connected in a matched mode. According to the motor rotating shaft, the connecting structure is arranged, the rotating shaft body and the external connecting shaft can be rapidly and conveniently assembled through the connecting structure, and the problems that a traditional connecting mode is tedious and unstable in connection are solved; threads of the connecting structure can be more rapidly and efficiently performed, threaded connection of the main connecting assembly and the auxiliary connecting assembly is tighter, and the connecting stability of the motor rotating shaft is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of motor rotating shafts, and particularly to an energy-saving motor rotating shaft that is easy to assemble and a preparation process thereof. Background Art

[0002] A motor refers to an electromagnetic device that realizes the conversion or transmission of electrical energy based on the law of electromagnetic induction. The motor shaft is an important component among them, and its performance directly affects the performance of the entire motor. It is the main driving component in modern industrial systems.

[0003] An existing patent with the publication number of CN212183294U discloses a motor rotating shaft that is easy to assemble, including a motor main body. A fixed rotating shaft is installed inside the motor main body, and a first slider is fixedly connected to the surface of the end of the fixed rotating shaft away from the motor main body. The surface of the first slider abuts against the inner wall of the driven rotating shaft, and a first fixed frame is fixedly connected to the surface of the driven rotating shaft.

[0004] The above-mentioned existing patent and traditional motor rotating shafts have the following problems: When a lengthening rod is required for docking with external equipment devices, the connection method is cumbersome and the connection is unstable, affecting the transmission efficiency of the motor rotating shaft. Therefore, an energy-saving motor rotating shaft that is easy to assemble and a preparation process thereof are designed. Summary of the Invention

[0005] The purpose of the present invention is to provide an energy-saving motor rotating shaft that is easy to assemble and a preparation process thereof to solve the problems raised in the above background art.

[0006] To achieve the above purpose, the present invention adopts the following technical solutions: An energy-saving motor rotating shaft that is easy to assemble, including a rotating shaft main body, a connection structure, and an external connection shaft. The rotating shaft main body is connected to the external connection shaft through the connection structure; The connection structure includes a main connection component installed at the end of the rotating shaft main body and a sub-connection component installed at the end of the external connection shaft. The main connection component is cooperatively connected with the sub-connection component.

[0007] Preferably, the main connection component includes a connection head, a main lock hole, a main inner groove, a first internal thread, a convex head, and a first external thread. The connection head is integrally connected to the end of the rotating shaft main body. A main inner groove is provided in the middle of the connection head, and there are no less than two groups of main lock holes on the edge. The inner wall of the main inner groove is provided with a first internal thread, and a convex head is provided in the middle. The outside of the convex head is provided with a first external thread.

[0008] Preferably, the outer edge of the convex head is flush with the outer edge of the connection head.

[0009] Preferably, the secondary connection component includes a connection plate, a secondary lock hole, a socket head, a second external thread, a secondary inner groove, and a second internal thread. One side of the connection plate is integrally connected to the end of the external connection shaft. The connection plate is provided with a secondary lock hole corresponding to the main lock hole. On the other side of the connection plate, there is a socket head. The external part of the socket head is provided with a second external thread, and the internal part is provided with a secondary inner groove. The inner wall of the secondary inner groove is provided with a second internal thread. The socket head is in an embedded fit with the main inner groove of the connection head, and the second external thread is in a threaded fit with the first internal thread. The convex head is in an embedded fit with the secondary inner groove, and the first external thread is in a threaded fit with the second internal thread.

[0010] The present invention provides a preparation process for an energy-saving motor shaft that is easy to assemble, including the following steps: S1. Material selection: High-strength alloy steel is selected. S2. Blank forming: The shaft blank is prepared by forging or precision casting. S3. Machining: The outer shape is turned by a lathe, the shaft shoulders are pre-machined, and then the threading is performed by a threading device. S4. Heat treatment: Quenching and tempering treatment, carburizing and quenching, or induction quenching are adopted. S5. Coating treatment: A low-friction nano-coating is coated on the surface of the shaft. S7. Assembly: The main shaft body and the external connection shaft are connected through a connection structure to complete the assembly.

[0011] Preferably, the threading device includes a linkage mechanism. The linkage mechanism is installed on the locking seat and is connected to a set of jaws of the chuck on the other side. A threading cutter head is installed on the linkage mechanism.

[0012] Preferably, the linkage mechanism includes a fixed seat, a first bevel gear, a linkage rod, a first adjustment component, a second bevel gear, a second adjustment component, a swing rod, a first push rod, and a second push rod. The front side of the fixed seat is installed on the locking seat. One side of the fixed seat is rotatably connected to a first bevel gear. One side of the first bevel gear extends downward, and a linkage rod is rotatably connected to the plate body. The other end of the linkage rod is installed on a set of jaws of the chuck through a first adjustment component. The upper part of the fixed seat is provided with a second bevel gear and is rotatably connected through a shaft rod. The second bevel gear is meshed and connected to the first bevel gear. One side of the upper part of the second bevel gear is provided with a second adjustment component, and a swing rod is rotatably connected to the second adjustment component. The lower part of the other end of the swing rod is rotatably connected to a first push rod. The bottom of the first push rod is fixedly sleeved on one end of the second push rod. The other end of the second push rod passes through the fixed seat and the first bevel gear and is connected to a threading cutter head.

[0013] Preferably, the first adjustment component includes a base plate, a guide post, a guide sleeve, and a locking bolt. The base plate is installed on the side of the clamping foot, and a guide post is provided on the base plate. A through hole and a guide sleeve are provided at the end of the linkage rod. The guide post slidably penetrates through the through hole and the guide sleeve of the linkage rod. An opening is provided on one side of the guide sleeve, and a locking bolt for locking the guide post is provided in the opening.

[0014] Preferably, the second adjustment component includes a slider, a side fixing plate, and a threaded rod. The slider is slidably disposed in a slideway opened on one side of the upper part of the second bevel gear, and a side fixing plate is installed on the outer side edge of the slideway. The side fixing plate is penetrated by a threaded rod, and the thread of the threaded rod is threadedly connected with a threaded hole provided in the middle of the slider. The upper end of the slider is rotatably connected to one end of a swing rod.

[0015] Compared with the prior art, the beneficial effects of the present invention are as follows: By providing a connection structure, the main shaft body and the external shaft can be quickly and conveniently assembled through the connection structure, solving the problems of cumbersome traditional connection methods and unstable connection.

[0016] Furthermore, the connection structure includes a main connection component and a secondary connection component. After the connection head is aligned with the lock hole of the connection plate, it is fixed by bolts. At the same time, the socket is embedded in the main inner groove, so that the second external thread is threadedly engaged with the first internal thread. At the same time, the convex head extends into the secondary inner groove, so that the first external thread is threadedly engaged with the second internal thread. Thus, the main shaft body and the external shaft are more tightly and stably connected through the main connection component and the secondary connection component on the premise of convenient assembly.

[0017] The preparation process of the motor main shaft of the present invention uses a tapping device for thread tapping, which can make the threads of the connection structure more rapid and efficient, make the threaded connection between the main connection component and the secondary connection component more tight, and improve the stability of the connection of the motor main shaft.

[0018] Furthermore, the provided thread tapping device adopts a linkage mechanism to link the tapping cutter head with the clamping foot of the chuck, so that there is no need to additionally set a motor to drive the tapping cutter head to move, realizing rapid and efficient thread tapping work and improving the overall work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 is a structural schematic diagram of the present invention.

[0020] Figure 2 is a structural schematic diagram of the main connection component of the present invention.

[0021] Figure 3 is a structural schematic diagram of the secondary connection component of the present invention.

[0022] Figure 4Schematic rear view structure of the secondary connection component of the present invention.

[0023] Figure 5 Schematic structure diagram of the tapping device of the present invention.

[0024] Figure 6 Schematic side view structure of the tapping device of the present invention.

[0025] Figure 7 For the present invention Figure 6 Enlarged schematic structure diagram at position B in the present invention.

[0026] Figure 8 Schematic side view structure of an adjustment component of the present invention.

[0027] Figure 9 For the present invention Figure 5 Schematic structure diagram at position A in the present invention.

[0028] In the figure: rotating shaft main body - 1, connection structure - 2, external connecting shaft - 3, main connection component - 21, secondary connection component - 22, connection head - 211, main locking hole - 212, main inner groove - 213, first internal thread - 214, convex head - 215, first external thread - 216, connection plate - 221, secondary locking hole - 222, socket - 223, second external thread - 224, secondary inner groove - 225, second internal thread - 226, linkage mechanism - 4, locking seat - 5, chuck - 6, clamping foot - 7, tapping cutter head - 8, fixing seat - 41, first bevel gear - 42, linkage rod - 43, first adjustment component - 44, second bevel gear - 45, second adjustment component - 46, swing rod - 47, first push rod - 48, second push rod - 49, base plate - 441, guide post - 442, guide sleeve - 443, locking bolt - 444, slider - 461, side fixing plate - 462, threaded rod - 463, workpiece to be processed on the rotating shaft - a. Specific embodiments

[0029] In order to further explain the technical solution of the present invention, the following will be elaborated in detail through specific embodiments.

[0030] Please refer to Figure 1 , the present invention provides an energy - saving motor rotating shaft that is easy to assemble, including a rotating shaft main body 1, a connection structure 2, and an external connecting shaft 3. The rotating shaft main body 1 is connected to the external connecting shaft 3 through the connection structure 2; Among them, the connection structure 2 includes a main connection component 21 installed at the end of the rotating shaft main body 1 and a secondary connection component 22 installed at the end of the external connecting shaft 3. The main connection component 21 and the secondary connection component 22 are cooperatively connected, and the rotating shaft main body 1 and the external connecting shaft 3 can be quickly and conveniently assembled through the connection structure 2.

[0031] Please refer to Figure 2, the main connection component 21 of the present invention includes a connection head 211, a main lock hole 212, a main inner groove 213, a first internal thread 214, a convex head 215 and a first external thread 216. The connection head 211 is integrally connected to the end of the rotating shaft body 1. A main inner groove 213 is provided in the middle of the connection head 211, and there are no less than two groups of main lock holes 212 on the edge. In this embodiment, three main lock holes 212 are provided, and bolts can be locked in respectively for fixation to improve the connection stability of the connection structure 2. A first internal thread 214 is provided on the inner wall of the main inner groove 213, a convex head 215 is provided in the middle, and a first external thread 216 is provided outside the convex head 215.

[0032] Among them, the outer edge of the convex head 215 is flush with the outer edge of the connection head 211, which is convenient for the socket 223 and the convex head 215 to be connected more tightly, and improves the stability of the rotating shaft body 1 and the external connecting shaft 3.

[0033] Please refer to Figures 3 - 4 , the auxiliary connection component 22 of the present invention includes a connection plate 221, an auxiliary lock hole 222, a socket 223, a second external thread 224, an auxiliary inner groove 225 and a second internal thread 226. One side of the connection plate 221 is integrally connected to the end of the external connecting shaft 3. An auxiliary lock hole 222 corresponding to the main lock hole 212 is provided on the connection plate 221. A socket 223 is provided on the other side of the connection plate 221. A second external thread 224 is provided outside the socket 223, and an auxiliary inner groove 225 is provided inside. A second internal thread 226 is provided on the inner wall of the auxiliary inner groove 225. The socket 223 and the main inner groove 213 of the connection head 211 are in an embedded fit, and the second external thread 224 and the first internal thread 214 are in a threaded fit. The convex head 215 and the auxiliary inner groove 225 are in an embedded fit, and the first external thread 216 and the second internal thread 226 are in a threaded fit.

[0034] Specifically, the end face of the connection head 211 of the main connection component 21 is in contact with the end face of the connection plate 221 of the auxiliary connection component 22. At the same time, the socket 223 is embedded in the main inner groove 213, so that the second external thread 224 and the first internal thread 214 are in a threaded fit. At the same time, the convex head 215 extends into the auxiliary inner groove 225, so that the first external thread 216 and the second internal thread 226 are in a threaded fit. Then, bolts are locked into the three main lock holes 212 and the auxiliary lock holes 222 for fixation to complete the rapid assembly.

[0035] The present invention provides a preparation process for an energy-saving motor rotating shaft that is convenient for assembly, including the following steps: S1. Material selection: High-strength alloy steel is selected, and one of 40Cr, 42CrMo or carbon fiber reinforced metal matrix composite material can be selected, which is specifically customized according to the actual situation and is not limited here; S2. Blank forming: The rotating shaft blank is prepared by forging or precision casting to improve the material density and strength; S3. Machining: Turn the outer shape by a lathe, pre-machine the shaft shoulder, and then perform thread machining through a tapping device; S4. Heat treatment: Adopt quenching and tempering, carburizing and quenching or induction quenching to improve the material hardness and wear resistance; S5. Coating treatment: Coat a low-friction nano-coating on the surface of the rotating shaft to improve wear resistance and reduce energy consumption; S7. Assembly: Connect the rotating shaft body 1 and the external shaft 3 through the connecting structure 2 to complete the assembly.

[0036] Please refer to Figure 5 , the tapping device of the present invention includes a linkage mechanism 4. The linkage mechanism 4 is installed on the locking seat 5 and is connected to a set of clamping feet 7 of the chuck 6 on the other side. A tapping cutter head 8 is installed on the linkage mechanism 4. There are three sets of clamping feet 7 on the chuck 6. After adjusting the appropriate spacing, the rotating shaft workpiece a to be processed can be positioned, and the tapping cutter head 8 can perform thread tapping on the rotating shaft workpiece a to be processed. It should be noted that the locking seat 5 is installed on a movable component for adjusting the front, rear, left, and right positions of the locking seat 5, and the chuck 6 is installed on a machine base with a motor drive for driving the chuck 6 to rotate. Both the above-mentioned movable component and the machine base with a motor drive are conventional existing technologies and will not be elaborated too much in this application.

[0037] Please refer to Figures 5 - 6 , the linkage mechanism 4 of the present invention includes a fixed seat 41, a first bevel gear 42, a linkage rod 43, a first adjustment component 44, a second bevel gear 45, a second adjustment component 46, a swing rod 47, a first push rod 48, and a second push rod 49. The front side of the fixed seat 41 is installed on the locking seat 5. One side of the fixed seat 41 is rotatably connected to a first bevel gear 42. A linkage rod 43 is rotatably connected to a plate body extending downward on one side of the first bevel gear 42. The other end of the linkage rod 43 is installed on a set of clamping feet 7 of the chuck 6 through a first adjustment component 44. A second bevel gear 45 is provided on the upper part of the fixed seat 41 and is rotatably connected through a shaft rod. The second bevel gear 45 is meshed and connected to the first bevel gear 42. A second adjustment component 46 is provided on one side of the upper part of the second bevel gear 45, and a swing rod 47 is rotatably connected to the second adjustment component 46. The lower part of the other end of the swing rod 47 is rotatably connected to a first push rod 48. The bottom of the first push rod 48 is fixedly sleeved on one end of the second push rod 49. The other end of the second push rod 49 passes through the fixed seat 41 and the first bevel gear 42 and is connected to a tapping cutter head 8.

[0038] Specifically, after the chuck 6 rotates, it drives the chuck jaw 7 to rotate. Then, the chuck jaw 7 drives the linkage rod 43 to rotate. The linkage rod 43 synchronously drives the first bevel gear 42 to rotate on one side of the fixed seat 41. After meshing, the first bevel gear 42 synchronously drives the second bevel gear 45 to rotate on the upper part of the fixed seat 41. After the second bevel gear 45 rotates, it drives one end of the swing rod 47 to move circumferentially. At the same time, after the other end of the swing rod 47 is rotatably connected to the first push rod 48, and the first push rod 48 is connected to the second push rod 49. The second push rod 49 penetrates through the fixed seat 41 and the first bevel gear 42 for positioning and guiding, so that the swing rod 47 swings back and forth to drive the first push rod 48, and then the first push rod 48 drives the second push rod 49 to move telescopically in the middle of the fixed seat 41 and the first bevel gear 42, thereby driving the tapping cutter head 8 to move back and forth, and can perform thread tapping work on the shaft workpiece a to be processed.

[0039] Please refer to Figures 7 - 8 , the first adjustment component 44 of the present invention includes a base plate 441, a guide post 442, a guide sleeve 443 and a locking bolt 444. The base plate 441 is installed on the side of the chuck jaw 7, and a guide post 442 is provided on the base plate 441. A through hole and a guide sleeve 443 are provided at the end of the linkage rod 43. The guide post 442 slidably penetrates through the through hole of the linkage rod 43 and the guide sleeve 443. An opening is provided on one side of the guide sleeve 443, and a locking bolt 444 for locking the guide post 442 is provided in the opening.

[0040] Specifically, after loosening the locking bolt 444, the linkage rod 43 and the guide sleeve 443 can slide and adjust their positions on the guide post 442. After adjusting the positions, they can be locked and positioned by the locking bolt 444. The setting of the first adjustment component 44 facilitates the adjustment of the position of the linkage rod 43, and better adapts to the thread tapping work of the shaft workpiece a to be processed.

[0041] Please refer to Figure 9 , the second adjustment component 46 of the present invention includes a slider 461, a side fixing plate 462 and a threaded rod 463. The slider 461 is slidably arranged in a slideway opened on one side of the upper part of the second bevel gear 45, and a side fixing plate 462 is installed on the outer side edge of the slideway. A threaded rod 463 penetrates through the side fixing plate 462, and the thread of the threaded rod 463 is threadedly connected to a threaded hole provided in the middle of the slider 461. The upper end of the slider 461 is rotatably connected to one end of the swing rod 47.

[0042] Specifically, by using tools such as a wrench to rotate the outer end of the threaded rod 463 to drive the threaded rod 463 to rotate. After the threaded rod 463 rotates, it drives the slider 461 to slide in the slideway opened on the upper part of the second bevel gear 45 through the thread, so as to adjust the position of the swing rod 47 and adjust the pushing distance of the second push rod 49.

[0043] The present invention provides an energy-saving motor shaft that is convenient for assembly and a preparation process. By providing a connection structure 2, the shaft body 1 and the external shaft 3 can be quickly and conveniently assembled through the connection structure 2, solving the problems of cumbersome traditional connection methods and unstable connections. The connection structure 2 includes a main connection component 21 and a secondary connection component 22. After aligning the connection head 211 with the locking hole of the connection plate 221, it is fixed with bolts. At the same time, the socket 223 is inserted into the main inner groove 213, so that the second external thread 224 is threadedly engaged with the first internal thread 214. At the same time, the convex head 215 extends into the secondary inner groove 225, so that the first external thread 216 is threadedly engaged with the second internal thread 226. Thus, the shaft body 1 and the external shaft 3 are more tightly and stably connected through the main connection component 21 and the secondary connection component 22 on the premise of convenient assembly.

[0044] The preparation process of the motor shaft of the present invention uses a tapping device for thread tapping, which can make the threads of the connection structure 2 more rapid and efficient, making the threaded connection between the main connection component 21 and the secondary connection component 22 more tight and improving the stability of the connection of the motor shaft. The provided tapping device uses a linkage mechanism 4 to link the tapping cutter head 8 with the jaws 7 of the chuck 6, so that there is no need to additionally set a motor to drive the tapping cutter head 8 to move, realizing rapid and efficient thread tapping work and improving the overall work efficiency.

[0045] The above are only preferred examples of the present invention and are not used to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. An energy-saving motor shaft that is easy to assemble, characterized in that: It comprises a rotating shaft body (1), a connecting structure (2) and a circumscribed shaft (3), wherein the rotating shaft body (1) is connected to the circumscribed shaft (3) via the connecting structure (2); The connection structure (2) comprises a main connection component (21) installed at the end of the rotating shaft body (1) and a secondary connection component (22) installed at the end of the external shaft (3), and the main connection component (21) and the secondary connection component (22) are matched and connected.

2. According to claim 1, an energy-saving motor shaft that is easy to assemble, characterized in that: The main connection assembly (21) comprises a connection head (211), a main locking hole (212), a main inner groove (213), a first inner thread (214), a convex head (215) and a first outer thread (216); the connection head (211) is integrally connected to the end of the shaft body (1); a main inner groove (213) is provided in the middle of the connection head (211); and at least two groups of main locking holes (212) are provided on the edge; a first inner thread (214) is provided on the inner wall of the main inner groove (213); a convex head (215) is provided in the middle; and a first outer thread (216) is provided on the outside of the convex head (215).

3. The energy-saving motor shaft that is easy to assemble according to claim 2 is characterized in that: The outer edge of the protruding head (215) is flush with the outer edge of the connecting head (211).

4. The energy-saving motor shaft that is easy to assemble according to claim 3 is characterized in that: The secondary connection assembly (22) comprises a connection plate (221), a secondary locking hole (222), a sleeve (223), a second external thread (224), a secondary internal groove (225) and a second internal thread (226); one side of the connection plate (221) is integrally connected to the end of the external shaft (3); the connection plate (221) is provided with a secondary locking hole (222) corresponding to the main locking hole (212); the other side of the connection plate (221) is provided with a sleeve (223); the sleeve (223) is externally The main body (211) is provided with a second external thread (224), and the interior is provided with a secondary internal groove (225); the inner wall of the secondary internal groove (225) is provided with a second internal thread (226); the sleeve (223) and the main internal groove (213) of the connector (211) are embedded in each other, and the second external thread (224) and the first internal thread (214) are threadedly matched; the convex head (215) and the secondary internal groove (225) are embedded in each other, and the first external thread (216) and the second internal thread (226) are threadedly matched.

5. A process for preparing an energy-saving motor shaft that is easy to assemble according to claim 4, characterized in that: The following steps are involved: S1. Material selection: high-strength alloy steel; S2. Blank forming: The shaft blank is prepared by forging or precision casting; S3, processing: turning the shape by lathe, pre-processing the shaft shoulder, and then thread processing by tapping device; S4, heat treatment: tempering, carburizing and quenching or induction quenching; S5, coating treatment: coating the shaft surface with a low-friction nano coating; S7, assembly: connecting the shaft body (1) and the external shaft (3) via the connecting structure (2) to complete the assembly.

6. A process for preparing an energy-saving motor shaft that is easy to assemble according to claim 5, characterized in that: The tapping device comprises a linkage mechanism (4), wherein the linkage mechanism (4) is mounted on a locking seat (5) and the other side is connected to a group of clamping feet (7) of a chuck (6), and a tapping tool head (8) is mounted on the linkage mechanism (4).

7. A process for preparing an energy-saving motor shaft that is easy to assemble according to claim 6, characterized in that: The linkage mechanism (4) comprises a fixed seat (41), a first bevel gear (42), a linkage rod (43), a first adjustment assembly (44), a second bevel gear (45), a second adjustment assembly (46), a swing rod (47), a first push rod (48), and a second push rod (49). The front side of the fixed seat (41) is mounted on the locking seat (5). One side of the fixed seat (41) is rotatably connected to the first bevel gear (42). One side of the first bevel gear (42) extends downwardly from a plate body and is rotatably connected to the linkage rod (43). The other end of the linkage rod (43) is mounted on a set of clamping feet (7) of the chuck (6) through the first adjustment assembly (44). ), a second bevel gear (45) is provided on the upper part of the fixed seat (41) and is rotatably connected via a shaft, the second bevel gear (45) is meshingly connected to the first bevel gear (42), a second adjustment component (46) is provided on one side of the upper part of the second bevel gear (45), and a swing rod (47) is rotatably connected to the second adjustment component (46), the lower part of the other end of the swing rod (47) is rotatably connected to the first push rod (48), the bottom of the first push rod (48) is fixedly sleeved on one end of the second push rod (49), the second push rod (49) passes through the fixed seat (41) and the other end of the first bevel gear (42) is connected to a tapping tool head (8).

8. A process for preparing an energy-saving motor shaft that is easy to assemble according to claim 7, characterized in that: The first adjustment assembly (44) comprises a base plate (441), a guide column (442), a guide sleeve (443) and a locking bolt (444); the base plate (441) is mounted on the side of the clamping foot (7), and the base plate (441) is provided with a guide column (442); a through hole and a guide sleeve (443) are provided at the end of the connecting rod (43); the guide column (442) slides through the through hole of the connecting rod (43) and the guide sleeve (443); an opening is provided on one side of the guide sleeve (443), and a locking bolt (444) for locking the guide column (442) is provided in the opening.

9. A process for preparing an energy-saving motor shaft that is easy to assemble according to claim 7, characterized in that: The second adjustment assembly (46) comprises a slider (461), a side fixing plate (462) and a threaded rod (463); the slider (461) is slidably arranged in a slideway opened on one side of the upper portion of the second bevel gear (45); the side fixing plate (462) is installed on the outer side of the slideway; a threaded rod (463) is penetrated through the side fixing plate (462); the thread of the threaded rod (463) is threadedly connected to a threaded hole provided in the middle portion of the slider (461); the upper end of the slider (461) is rotatably connected to one end of the swing rod (47).

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