Motor rotating shaft

Abstract

The utility model relates to the technical field of motor rotating shafts, and discloses a motor rotating shaft which comprises a main rotating shaft, an auxiliary rotating shaft is slidably inserted into the main rotating shaft, four positioning seats arranged at equal intervals are fixedly connected into the main rotating shaft, and a threaded rod is rotatably inserted into each positioning seat. And the outer circumferential surface of the threaded rod is in threaded connection with a positioning rod. According to the motor rotating shaft, a driving gear drives a driven gear to rotate in the rotating process, a threaded rod is promoted to drive a positioning rod to retract and release, a fixing bolt is arranged on a shell, the motor rotating shaft is promoted not to rotate in the moving process, and the main rotating shaft and an auxiliary rotating shaft are conveniently disassembled and maintained; the rotating shaft positioning structure prevents the positioning rod from moving back during operation of the motor rotating shaft to cause loose connection between the main rotating shaft and the auxiliary rotating shaft, improves stability of connection between the rotating shafts and movement of the rotating shafts, and solves the problem that the existing rotating shaft positioning structure has possibility of moving back during use and reduces stability and safety of the rotating shafts.

Description

Technical Field

[0001] The present application relates to the technical field of motor shafts, and in particular to a motor shaft. Background Art

[0002] The motor shaft is an important part of the motor, which is used to connect the load and output power to achieve rotational motion. The motor shaft is usually composed of the motor's rotor and bearings, etc. It supports the rotating parts, transmits torque, and determines the relative position of the rotating parts to the stator.

[0003] The existing patent (publication number: CN 220668311 U) discloses a motor shaft that is easy to install and disassemble, including a shaft body and a side shaft, a slot is provided at one end of the shaft body, a plug rod is fixed at one end of the side shaft, and the plug rod is arranged in the slot, a limit hole is provided on one side of the plug rod, and plug holes are provided on both side walls of the slot, arc plates are provided on both sides of the shaft body, and limit rods are fixed on the two side walls of the arc plates, and the limit rods pass through the plug holes and are inserted in the limit holes, one of the side walls of the arc plate is fixed with an annular sleeve plate on both sides, and the other side wall of the arc plate is fixed with a slide plate on both sides. The motor shaft of the utility model is composed of a shaft body and a side shaft, and when the side shaft is damaged and needs to be replaced, it is only necessary to pull the two arc plates to pull the two limit rods out of the limit holes, and then take the plug rod out of the slot, so as to facilitate the disassembly of the motor shaft.

[0004] The above-mentioned shaft positioning structure may rotate and move back during use, resulting in an unstable connection between the shafts. In addition, the square structure is not conducive to the rotation of the shaft, thereby reducing the stability and safety of the shaft. Utility Model Content

[0005] In response to the deficiencies in the prior art, the present application provides a motor shaft which has the advantages of convenient disassembly and maintenance of the motor shaft and improved stability of the connection between shafts and shaft movement. It solves the problem that the existing shaft positioning structure may rotate and move back during use, resulting in an unstable connection between shafts, and the square structure is not conducive to the rotational movement of the shaft, thereby reducing the stability and safety of the shaft.

[0006] To achieve the above-mentioned purpose, the present application provides the following technical solutions: a motor shaft, comprising a main shaft, a secondary shaft slidably inserted inside the main shaft, four equidistantly arranged positioning seats fixedly connected inside the main shaft, a threaded rod rotatably inserted inside each of the positioning seats, the outer circumference of the threaded rod is threadedly connected to the positioning rod, four equidistantly arranged positioning grooves are opened inside the secondary shaft, and the outer circumference of the positioning rod is slidably inserted with the secondary shaft through the positioning grooves.

[0007] Through the above scheme, since the existing positioning structure of the rotating shaft may rotate and move back during use, the connection between the rotating shafts is not stable enough, and the square structure is not conducive to the rotational movement of the rotating shaft, which reduces the stability and safety of the rotating shaft. The active gear drives the driven gear to rotate during the rotation process, so that the threaded rod drives the positioning rod to be retracted and released, which is convenient for disassembly and maintenance of the main rotating shaft and the auxiliary rotating shaft. By arranging fixing bolts on the outer casing, the motor rotating shaft will not rotate during the movement, which avoids the positioning structure moving back when the motor rotating shaft is operating, causing the connection between the main rotating shaft and the auxiliary rotating shaft to become loose, thereby improving the stability of the connection between the rotating shafts and the movement of the rotating shafts.

[0008] Furthermore, four equidistantly arranged mounting grooves are provided inside the main rotating shaft, and four mounting blocks are fixedly connected to the outer circumferential surface of the auxiliary rotating shaft, and the outer surfaces of the mounting blocks are slidably connected to the main rotating shaft through the mounting grooves.

[0009] Through the above scheme, the connection and installation of the main shaft and the auxiliary shaft can be assisted by the installation groove and the installation block, so that the positions of the positioning rod and the positioning groove correspond and the stability of the connection between the main shaft and the auxiliary shaft is improved.

[0010] Furthermore, a first limiting ring is fixedly sleeved on the outer circumferential surface of the threaded rod, and the outer circumferential surface of the first limiting ring is rotatably connected to the inside of the positioning seat.

[0011] Through the above solution, the threaded rod is restricted to prevent the threaded rod from sliding and deviating, thereby increasing the stability of the threaded rod movement.

[0012] Furthermore, two limiting plates are fixedly connected to the outer circumferential surface of the positioning rod, and the outer surface of each limiting plate is slidably connected to the positioning seat through a hollow groove provided inside the positioning seat.

[0013] Through the above solution, the positioning rod is restricted to prevent the positioning rod from rotating along with the threaded rod, so that the positioning rod is always retracted and extended longitudinally.

[0014] Furthermore, a connecting ring is rotatably sleeved on the outer circumferential surface of the main shaft, a driving gear is fixedly connected to the back of the connecting ring, a driven gear is fixedly connected to the top end of the threaded rod, and the driven gear is meshed with the driving gear.

[0015] Through the above solution, the driving gear can drive all the driven gears to rotate synchronously during rotation, so that the positioning rods can be retracted and moved at the same time, which facilitates the disassembly and maintenance of the auxiliary shaft.

[0016] Furthermore, a handle is fixedly sleeved on the outer circumferential surface of the connecting ring, and the outer circumferential surface of the handle is provided with anti-slip grooves arranged at equal distances.

[0017] Through the above solution, the driving gear can be easily controlled by the handle, which provides convenience for the user.

[0018] Furthermore, a second limiting ring is fixedly connected to the inner wall of the connecting ring, and the outer surface of the second limiting ring is rotatably connected to the main rotating shaft via a hollow groove provided on the outer circumferential surface of the main rotating shaft.

[0019] Through the above solution, the connecting ring is restricted to avoid sliding and deflection of the connecting ring, thereby increasing the stability of the movement of the connecting ring and the driving gear.

[0020] Furthermore, a housing is fixedly sleeved on the outer circumferential surface of the main shaft, and two fixing bolts are connected to the inner thread of the housing. Each of the fixing bolts is slidably plugged into the driving gear through a slot provided inside the driving gear.

[0021] Through the above solution, the driving gear is restricted by the fixing bolt to prevent the driving gear from rotating during the movement of the shaft, causing the positioning rod to move back and resulting in loose connection between the main shaft and the auxiliary shaft.

[0022] Compared with the prior art, the technical solution of this application has the following beneficial effects:

[0023] The motor shaft drives the driven gear to rotate during the rotation process through the driving gear, so that the threaded rod drives the positioning rod to be retracted and extended. By arranging fixing bolts on the outer shell, the motor shaft will not rotate during the movement, so that the main shaft and the auxiliary shaft can be easily disassembled and maintained, and the positioning rod can be prevented from moving back when the motor shaft is operating, resulting in loose connection between the main shaft and the auxiliary shaft, thereby improving the stability of the connection between the shafts and the movement of the shafts, and solving the problem that the positioning structure of the existing shaft may move back during use, thereby reducing the stability and safety of the shaft. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 This is the overall three-dimensional structure diagram of this application;

[0025] Figure 2 This is the driving gear structure diagram for this application;

[0026] Figure 3 This is the main shaft structure diagram of this application;

[0027] Figure 4 This is the structural diagram of the secondary shaft of this application;

[0028] Figure 5 This is the structural diagram of the positioning seat for this application.

[0029] In the figure:

[0030] 1. Main rotating shaft; 2. Auxiliary rotating shaft; 3. Mounting groove; 4. Mounting block; 5. Positioning seat; 6. Threaded rod; 7. Positioning rod; 8. Positioning groove; 9. First limiting ring; 10. Limiting plate; 11. Connecting ring; 12. Handle; 13. Driving gear; 14. Driven gear; 15. Second limiting ring; 16. Housing; 17. Fixing bolt. DETAILED DESCRIPTION

[0031] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0032] See also Figure 2 , Figure 3 and Figure 4 A motor shaft in this embodiment includes a main shaft 1, a secondary shaft 2 is slidably inserted inside the main shaft 1, four equidistantly arranged positioning seats 5 are fixedly connected inside the main shaft 1, a threaded rod 6 is rotatably inserted inside each positioning seat 5, a positioning rod 7 is threadedly connected to the outer circumference of the threaded rod 6, four equidistantly arranged positioning grooves 8 are opened inside the secondary shaft 2, and the outer circumference of the positioning rod 7 is slidably inserted with the secondary shaft 2 through the positioning grooves 8.

[0033] See also Figure 1 , Figure 2 and Figure 3 Four equidistantly arranged mounting grooves 3 are provided inside the main rotating shaft 1, and four mounting blocks 4 are fixedly connected to the outer circumferential surface of the auxiliary rotating shaft 2. The outer surface of the mounting block 4 is slidably connected to the main rotating shaft 1 through the mounting groove 3. The mounting groove 3 and the mounting block 4 can assist the connection and installation of the main rotating shaft 1 and the auxiliary rotating shaft 2, so that the positions of the positioning rod 7 and the positioning groove 8 correspond, and the stability of the connection between the main rotating shaft 1 and the auxiliary rotating shaft 2 is improved.

[0034] See also Figure 4 and Figure 5 The outer circumference of the threaded rod 6 is fixedly sleeved with a first limiting ring 9, and the outer circumference of the first limiting ring 9 is rotatably connected to the inside of the positioning seat 5 to limit the threaded rod 6, prevent the threaded rod 6 from sliding and deviating, and increase the stability of the threaded rod 6 movement.

[0035] See also Figure 4 and Figure 5Two limit plates 10 are fixedly connected to the outer circumferential surface of the positioning rod 7. The outer surface of each limit plate 10 is slidably connected to the positioning seat 5 through a hollow groove opened inside the positioning seat 5, thereby limiting the positioning rod 7 and preventing the positioning rod 7 from rotating with the threaded rod 6, so as to enable the positioning rod 7 to always be retracted and extended longitudinally.

[0036] See also Figure 1 , Figure 2 and Figure 3 The outer circumferential surface of the main shaft 1 is rotatably sleeved with a connecting ring 11, the back of the connecting ring 11 is fixedly connected to a driving gear 13, and the top of the threaded rod 6 is fixedly connected to a driven gear 14. The driven gear 14 is meshed with the driving gear 13, so that the driving gear 13 can drive all the driven gears 14 to rotate synchronously during the rotation, and then the positioning rod 7 can be retracted and moved at the same time, which is convenient for disassembly and maintenance of the auxiliary shaft 2.

[0037] See also Figure 1 , Figure 2 and Figure 3 The outer circumference of the connecting ring 11 is fixedly sleeved with a handle 12, and the outer circumference of the handle 12 is provided with equidistantly arranged anti-slip grooves, which facilitates the control of the driving gear 13 through the handle 12, providing convenience for the user.

[0038] See also Figure 3 The inner wall of the connecting ring 11 is fixedly connected with a second limiting ring 15, and the outer surface of the second limiting ring 15 is rotatably connected to the main rotating shaft 1 through a groove opened on the outer circumferential surface of the main rotating shaft 1, so as to limit the connecting ring 11, prevent the connecting ring 11 from sliding and deviating, and increase the stability of the movement of the connecting ring 11 and the driving gear 13.

[0039] See also Figure 1 , Figure 2 and Figure 3 The outer circumferential surface of the main rotating shaft 1 is fixedly sleeved with a shell 16, and the internal thread of the shell 16 is connected to two fixing bolts 17. Each fixing bolt 17 is slidably plugged with the driving gear 13 through an empty groove opened inside the driving gear 13. The driving gear 13 is restricted by the fixing bolts 17 to prevent the driving gear 13 from rotating during the movement of the rotating shaft, causing the positioning rod 7 to move back, resulting in loose connection between the main rotating shaft 1 and the auxiliary rotating shaft 2.

[0040] In the present embodiment, a motor shaft drives a driven gear 14 to rotate during the rotation process through a driving gear 13, so that the threaded rod 6 drives a positioning rod 7 to be retracted and extended. By setting a fixing bolt 17 on the housing 16, the motor shaft will not rotate during the movement, so that the main shaft 1 and the auxiliary shaft 2 can be easily disassembled and maintained, and the positioning rod 7 can be prevented from moving back when the motor shaft is operating, causing the connection between the main shaft 1 and the auxiliary shaft 2 to become loose, thereby improving the stability of the connection between the shafts and the movement of the shafts, and solving the problem that the positioning structure of the existing shaft may move back during use, thereby reducing the stability and safety of the shaft.

[0041] It should be noted that the angle between the positioning rod 7 and the positioning groove 8 is 90 degrees, which improves the stability of the connection between the main rotating shaft 1 and the auxiliary rotating shaft 2.

[0042] The working principle of the above embodiment is:

[0043] When it is necessary to disassemble and maintain the secondary rotating shaft 2, the fixing bolt 17 can be removed first to cancel the positioning restriction on the driving gear 13, and then the connecting ring 11 can be rotated by the handle 12, and the connecting ring 11 drives the driving gear 13 to rotate, and the driving gear 13 drives the threaded rod 6 to rotate through the driven gear 14, and the threaded rod 6 drives the positioning rod 7 to move outward, and then the positioning rod 7 is moved out from the inside of the positioning groove 8, and the positioning restriction on the secondary rotating shaft 2 is cancelled, and the secondary rotating shaft 2 can be directly moved out from the inside of the main rotating shaft 1. When reinstalling, the mounting block 4 is aligned with the mounting groove 3, and the auxiliary secondary rotating shaft 2 is installed into the main rotating shaft 1, and then the driving gear 13 is rotated to make the positioning rod 7 move into the inside of the positioning groove 8, and the positioning of the secondary rotating shaft 2 is completed again, and then the fixing bolt 17 is installed to prevent the driving gear 13 from rotating during the movement of the shaft, thereby increasing the stability of the connection between the main rotating shaft 1 and the secondary rotating shaft 2.

[0044] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0045] Although the embodiments of the present application have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present application, and that the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A motor shaft, comprising a main shaft (1), characterized in that: The main rotating shaft (1) is internally slidably plugged with a secondary rotating shaft (2), and the main rotating shaft (1) is internally fixedly connected with four equidistantly arranged positioning seats (5), and each of the positioning seats (5) is internally rotatably plugged with a threaded rod (6), and the outer circumferential surface of the threaded rod (6) is threadedly connected with a positioning rod (7), and the interior of the secondary rotating shaft (2) is provided with four equidistantly arranged positioning grooves (8), and the outer circumferential surface of the positioning rod (7) is slidably plugged with the secondary rotating shaft (2) through the positioning grooves (8).

2. The motor shaft according to claim 1, characterized in that: The main rotating shaft (1) is provided with four equidistantly arranged mounting grooves (3), the outer circumferential surface of the auxiliary rotating shaft (2) is fixedly connected with four mounting blocks (4), and the outer surfaces of the mounting blocks (4) are slidably connected to the main rotating shaft (1) via the mounting grooves (3).

3. The motor shaft according to claim 1, characterized in that: A first limiting ring (9) is fixedly sleeved on the outer circumferential surface of the threaded rod (6), and the outer circumferential surface of the first limiting ring (9) is rotatably connected to the interior of the positioning seat (5).

4. The motor shaft according to claim 1, characterized in that: Two limiting plates (10) are fixedly connected to the outer circumferential surface of the positioning rod (7), and the outer surface of each limiting plate (10) is slidably connected to the positioning seat (5) via a hollow groove provided inside the positioning seat (5).

5. The motor shaft according to claim 1, characterized in that: A connecting ring (11) is rotatably sleeved on the outer circumferential surface of the main rotating shaft (1), a driving gear (13) is fixedly connected to the back of the connecting ring (11), a driven gear (14) is fixedly connected to the top end of the threaded rod (6), and the driven gear (14) is meshed with the driving gear (13).

6. The motor shaft according to claim 5, characterized in that: A handle (12) is fixedly sleeved on the outer circumferential surface of the connecting ring (11), and the outer circumferential surface of the handle (12) is provided with anti-slip grooves arranged at equal intervals.

7. The motor shaft according to claim 5, characterized in that: The inner wall of the connecting ring (11) is fixedly connected to a second limiting ring (15), and the outer surface of the second limiting ring (15) is rotatably connected to the main rotating shaft (1) via a hollow groove provided on the outer circumferential surface of the main rotating shaft (1).

8. The motor shaft according to claim 5, characterized in that: The outer circumferential surface of the main shaft (1) is fixedly sleeved with a housing (16), and the inner thread of the housing (16) is connected to two fixing bolts (17), and each fixing bolt (17) is slidably plugged into the driving gear (13) through a slot provided inside the driving gear (13).

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