High-strength motor rotating shaft

Abstract

The utility model relates to a motor rotating shaft, and belongs to the technical field of motor rotating shafts, in particular to a high-strength motor rotating shaft, which comprises a main shaft, a fixing screw is fixedly connected onto the main shaft, and a connecting shaft is fixedly connected onto the fixing screw. According to the connecting assembly, the connecting sleeve, the rotating ring, the threaded sleeve, the limiting groove and the limiting plate are matched, the threaded sleeve is in threaded connection with the fixing screw rod, and the connecting sleeve is connected with the connecting shaft, so that the connecting sleeve is convenient to disassemble, and connecting sleeves of different specifications can be replaced so as to adapt to different devices; according to the limiting assembly, through cooperation of a fixing ring, a first clamping groove, a limiting ring, a limiting column, a spring, a connecting column, a connecting ring, a fixing block, a telescopic block and a pressing plate, a connecting sleeve is limited and reinforced, so that the device is more stable during use, meanwhile, the device can complete disassembly of the connecting sleeve without the help of tools, the connecting sleeve of the device is convenient to disassemble and assemble, and the use is convenient. And the practicability of the device is improved.

Description

Technical Field

[0001] This utility model relates to the field of motor shaft technology, specifically a high-strength motor shaft. Background Technology

[0002] The motor shaft is used to transmit torque and is usually connected to other external components during use. However, when the connection of the shaft wears down, the entire shaft needs to be replaced, which is very wasteful.

[0003] Chinese patent CN219865856U discloses a high-strength motor shaft, including a spindle. One end of the spindle is machined with a clamping table, and the other end of the spindle is sequentially machined with a clamping table, a connecting shaft, and a limiting table. The clamping table, connecting shaft, and limiting table are externally fixed with connecting sleeves by bolts and snap rings. This patent can prevent the spindle from being directly connected to external equipment. When wear occurs, the connecting sleeve can be directly replaced, thereby reducing waste. At the same time, different sizes of connecting sleeves can be replaced according to different external equipment, making the whole device more convenient and flexible.

[0004] In the above technical solution, the limiting platform on the connecting shaft is fixed to the sleeve by bolts. When the connecting sleeve needs to be replaced, the corresponding tool needs to be found and the bolts need to be disassembled, which is time-consuming. In addition, the bolts are small and are easy to lose after disassembly, which makes the practicality of the device low.

[0005] Based on this, this application proposes a high-strength motor shaft. Utility Model Content

[0006] To address the aforementioned technical problems, this utility model proposes a high-strength motor shaft that can connect a connecting sleeve to the connecting shaft via a connecting assembly, thereby protecting the connecting shaft. It also allows for the replacement of connecting sleeves of different specifications to adapt to various devices. Furthermore, a limiting assembly facilitates the installation and disassembly of the connecting sleeve, improving the practicality of the device.

[0007] The technical solution to achieve the purpose of this utility model is as follows: a high-strength motor shaft, including a main shaft, a fixing screw fixedly connected to the main shaft, a connecting shaft fixedly connected to the fixing screw, a connecting assembly and a limiting assembly provided on the connecting shaft, the connecting assembly including a connecting sleeve, a rotating ring and a threaded sleeve, the connecting sleeve being disposed on the connecting shaft, the rotating ring being rotatably connected to the connecting sleeve, the threaded sleeve being fixedly connected to the rotating ring and threadedly connected to the fixing screw, the limiting assembly including a fixing ring, a slot, a limiting ring and limiting posts, the fixing ring being fixedly connected to the main shaft, four slots being formed on the fixing ring, the limiting ring being fixedly connected to the threaded sleeve, and four limiting posts being slidably connected to the limiting ring, the limiting posts being adapted to the slots.

[0008] Preferably, the connecting assembly further includes a groove, a limiting groove, and a limiting plate. The groove is formed on the threaded sleeve, the rotating ring is rotatably connected in the groove, a plurality of limiting grooves are respectively formed on the connecting shaft and the connecting sleeve, and a plurality of limiting plates are respectively fixedly connected to the connecting shaft and the connecting sleeve.

[0009] Preferably, the limiting assembly further includes springs and connecting posts, with the two ends of the four springs respectively fixedly connected to the limiting ring and the four limiting posts, and the four connecting posts respectively fixedly connected to the four limiting posts.

[0010] Preferably, the limiting component further includes a connecting ring and a through hole, the connecting ring being fixedly connected to four connecting posts, and the through hole being formed on the connecting sleeve.

[0011] Preferably, the limiting component further includes a second slot and a fixing block, the two second slots being formed on the connecting sleeve, and the fixing block being fixedly connected to the connecting shaft.

[0012] Preferably, the limiting component further includes telescopic blocks and pressure plates. The two telescopic blocks are disposed on the fixed block, the telescopic blocks are adapted to the second slot, and the two pressure plates are slidably connected in the two second slots respectively.

[0013] Compared with existing technologies, the significant advantages of this invention are:

[0014] Firstly, in this utility model, the connecting assembly is made of a connecting sleeve, a groove, a rotating ring, a threaded sleeve, a limiting groove, and a limiting plate. The threaded sleeve is threadedly connected to the fixing screw, and the connecting sleeve is connected to the connecting shaft, making the connecting sleeve easy to disassemble. Therefore, different specifications of connecting sleeves can be replaced to adapt to different equipment.

[0015] Secondly, in this utility model, the limiting component, through the cooperation of a fixing ring, a first slot, a limiting ring, a limiting post, a spring, a connecting post, a connecting ring, a through hole, a second slot, a fixing block, a telescopic block, and a pressure plate, limits and reinforces the connecting sleeve, making the device more stable during use. At the same time, the device can disassemble the connecting sleeve without the aid of tools, making the connecting sleeve easy to disassemble and install, thus improving the practicality of the device. Attached Figure Description

[0016] The present invention will be further explained below with reference to the accompanying drawings and embodiments:

[0017] Figure 1 This is a three-dimensional structural schematic diagram of the present invention;

[0018] Figure 2 This is a three-dimensional structural diagram of the connecting shaft and connecting sleeve in this utility model;

[0019] Figure 3 This is a schematic diagram of the internal three-dimensional structure of the connecting sleeve in this utility model;

[0020] Figure 4 This is a cross-sectional view of the internal structure of the connecting sleeve in this utility model.

[0021] Explanation of reference numerals in the attached figures:

[0022] 1. Main spindle; 2. Fixed screw; 3. Connecting shaft; 4. Connecting assembly; 41. Connecting sleeve; 42. Groove; 43. Rotating ring; 44. Threaded sleeve; 45. Limiting groove; 46. Limiting plate; 5. Limiting assembly; 51. Fixed ring; 52. Slot 1; 53. Limiting ring; 54. Limiting post; 55. Spring; 56. Connecting post; 57. Connecting ring; 58. Through hole; 59. Slot 2; 510. Fixed block; 511. Telescopic block; 512. Pressure plate. Detailed Implementation

[0023] The present invention will now be described in detail, and the technical solutions in the embodiments of the present invention will be clearly and completely described. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present invention.

[0024] This utility model provides a high-strength motor shaft through improvements. The technical solution of this utility model is as follows:

[0025] like Figures 1-4As shown, a high-strength motor shaft includes a main shaft 1, a fixing screw 2 fixedly connected to the main shaft 1, and a connecting shaft 3 fixedly connected to the fixing screw 2. The diameter of the connecting shaft 3 is slightly smaller than the diameter of the fixing screw 2. The connecting shaft 3 is provided with a connecting assembly 4 and a limiting assembly 5. The connecting assembly 4 includes a connecting sleeve 41, a rotating ring 43, and a threaded sleeve 44. The connecting sleeve 41 is disposed on the connecting shaft 3, and the rotating ring 43 is rotatably connected to the connecting sleeve 41. The inner diameter of the connecting sleeve 41 is equal to the diameter of the connecting shaft 3. The cross-section of the rotating ring 43 is convex. The threaded sleeve 44 is fixedly connected to the rotating ring 43 and threadedly connected to the fixing screw 2. The limiting assembly 5 includes a fixing ring 51 and a retaining ring 54. The device consists of slot 52, a limiting ring 53, and limiting posts 54. A fixed ring 51 is fixedly connected to the main shaft 1, and the diameter of the fixed ring 51 is equal to the diameter of the limiting ring 53. Four slots 52 are formed on the fixed ring 51 and are arranged in a circular array with the center of the fixed ring 51 as the center. The limiting ring 53 is fixedly connected to the threaded sleeve 44, and the four limiting posts 54 are slidably connected to the limiting ring 53. The limiting posts 54 are adapted to the slots 52. By embedding the limiting posts 54 into the slots 52, the threaded sleeve 44 is limited, so the threaded sleeve 44 cannot rotate during use. Since the threaded sleeve 44 is threadedly connected to the fixed screw 2, the threaded sleeve 44 cannot rotate or move.

[0026] Furthermore, such as Figures 2-4 As shown, the connecting assembly 4 also includes a groove 42, a limiting groove 45, and a limiting plate 46. The groove 42 is formed on the threaded sleeve 44, and the rotating ring 43 is rotatably connected in the groove 42. Multiple limiting grooves 45 are respectively formed on the connecting shaft 3 and the connecting sleeve 41. The limiting grooves 45 are arranged in a circular array on the connecting shaft 3 and the connecting sleeve 41 with their centers as the center. Multiple limiting plates 46 are respectively fixedly connected to the connecting shaft 3 and the connecting sleeve 41. The limiting plates 46 are adapted to the limiting grooves 45. The limiting plates 46 on the connecting shaft 3 are embedded in the limiting grooves 45 on the connecting sleeve 41, so that the connecting sleeve 41 rotates with the rotation of the connecting shaft 3.

[0027] Furthermore, such as Figure 2 and Figure 4 As shown, the limiting component 5 also includes springs 55 and connecting posts 56. The two ends of the four springs 55 are respectively fixedly connected to the limiting ring 53 and the four limiting posts 54. The four connecting posts 56 are respectively fixedly connected to the four limiting posts 54. The connecting posts 56 and the limiting posts 54 correspond one-to-one. The length of the limiting post 54 is less than the width of the limiting ring 53.

[0028] Furthermore, such as Figures 2-4As shown, the limiting component 5 also includes a connecting ring 57 and a through hole 58. The connecting ring 57 is fixedly connected to four connecting posts 56. The connecting posts 56 cooperate with the connecting ring 57 to facilitate the removal of the limiting post 54 from the slot 52, thereby releasing the threaded sleeve 44. The through hole 58 is opened on the connecting sleeve 41.

[0029] Furthermore, such as Figures 2-4 As shown, the limiting component 5 also includes a second slot 59 and a fixing block 510. The two slots 59 are opened on the connecting sleeve 41 and are symmetrical about the through hole 58. The fixing block 510 is fixedly connected to the connecting shaft 3 and the diameter of the fixing block 510 is equal to the diameter of the through hole 58.

[0030] Furthermore, such as Figure 2 As shown, the limiting component 5 also includes a telescopic block 511 and a pressure plate 512. The two telescopic blocks 511 are disposed on the fixed block 510. The telescopic block 511 consists of a return spring and a locking block with a right-angled trapezoidal cross section. The telescopic block 511 is adapted to the second locking groove 59. The two pressure plates 512 are slidably connected in the two second locking grooves 59 respectively.

[0031] The specific working method is as follows: When the connecting sleeve 41 needs to be replaced, push the pressure plate 512 so that the pressure plate 512 moves towards the telescopic block 511. The telescopic block 511 is squeezed and moves into the fixed block 510, so that the telescopic block 511 is embedded in the fixed block 510. Then pull the connecting ring 57 so that it moves away from the spring 55, driving the limit post 54 to move away from the slot 1 52. At this time, the threaded sleeve 44 can be rotated. Since the threaded sleeve 44 is threadedly connected to the fixed screw 2, the threaded sleeve 44 moves away from the main shaft 1 as it rotates, driving the rotating ring 43 to move. Since the rotating ring 43 is rotatably connected to the groove 42 of the connecting sleeve 41, the connecting sleeve 41 moves accordingly, so that the connecting sleeve 41 moves away from the connecting shaft 3, and the two separate. The connecting sleeve 41 can be disassembled without the aid of tools, making the connecting sleeve 41 of the device easy to disassemble and install, thus improving the practicality of the device.

[0032] The technical means disclosed in this utility model are not limited to those described above, but also include technical solutions composed of equivalent substitutions of the above technical features. Matters not covered in this utility model are common knowledge to those skilled in the art.

Claims

1. A high-strength motor shaft, comprising a main shaft (1), wherein a fixing screw (2) is fixedly connected to the main shaft (1), and a connecting shaft (3) is fixedly connected to the fixing screw (2), characterized in that: The connecting shaft (3) is provided with a connecting assembly (4) and a limiting assembly (5). The connecting assembly (4) includes a connecting sleeve (41), a rotating ring (43), and a threaded sleeve (44). The connecting sleeve (41) is disposed on the connecting shaft (3). The rotating ring (43) is rotatably connected to the connecting sleeve (41). The threaded sleeve (44) is fixedly connected to the rotating ring (43) and is threadedly connected to the fixing screw (2). The limiting component (5) includes a fixed ring (51), a slot (52), a limiting ring (53), and a limiting post (54). The fixed ring (51) is fixedly connected to the main shaft (1). Four slots (52) are formed on the fixed ring (51). The limiting ring (53) is fixedly connected to the threaded sleeve (44). Four limiting posts (54) are slidably connected to the limiting ring (53). The limiting posts (54) are adapted to the slots (52).

2. The high-strength motor shaft according to claim 1, characterized in that: The connecting assembly (4) further includes a groove (42), a limiting groove (45), and a limiting plate (46). The groove (42) is formed on the threaded sleeve (44), and the rotating ring (43) is rotatably connected in the groove (42). Multiple limiting grooves (45) are formed on the connecting shaft (3) and the connecting sleeve (41), and multiple limiting plates (46) are fixedly connected to the connecting shaft (3) and the connecting sleeve (41).

3. A high-strength motor shaft according to claim 1, characterized in that: The limiting component (5) also includes springs (55) and connecting posts (56). The two ends of the four springs (55) are fixedly connected to the limiting ring (53) and the four limiting posts (54) respectively, and the four connecting posts (56) are fixedly connected to the four limiting posts (54) respectively.

4. A high-strength motor shaft according to claim 3, characterized in that: The limiting component (5) also includes a connecting ring (57) and a through hole (58). The connecting ring (57) is fixedly connected to four connecting posts (56), and the through hole (58) is opened on the connecting sleeve (41).

5. A high-strength motor shaft according to claim 1, characterized in that: The limiting component (5) also includes a second slot (59) and a fixing block (510). The two second slots (59) are opened on the connecting sleeve (41), and the fixing block (510) is fixedly connected to the connecting shaft (3).

6. A high-strength motor shaft according to claim 5, characterized in that: The limiting component (5) also includes a telescopic block (511) and a pressure plate (512). The two telescopic blocks (511) are disposed on the fixed block (510). The telescopic blocks (511) are adapted to the second slot (59). The two pressure plates (512) are slidably connected in the two second slots (59).

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