Split type servo motor shaft

Abstract

The utility model discloses a split type servo motor shaft, which comprises a main shaft section, connecting cavities with rectangular axial sections are arranged in two end surfaces of the main shaft section, and reinforcing layer rings which are fixedly arranged on the outer surface of the main shaft section and are used for avoiding deformation of the end parts of the main shaft section are arranged on the outer sides of the connecting cavities. A detachable connecting layer is arranged in the connecting cavity, a transmission square column is arranged in the connecting layer, the other side of the transmission square column is fixedly connected with a first shaft section, a shaft body can be conveniently disassembled and replaced through the split type structural design, abrasion of the inner wall of the connecting cavity can be reduced through the connecting layer, and the service life of the main shaft section is prolonged; the reinforcing layer ring is used for improving the strength of the connecting position of the two ends of the main shaft section, deformation of the ends is avoided, and the threaded cover can achieve stable connection between the first shaft section and the main shaft section and can achieve sealing through the sealing gasket ring.

Description

Technical Field

[0001] This utility model relates to the field of motor shafts, specifically to a split-type servo motor shaft. Background Technology

[0002] A servo motor is an engine that controls the operation of mechanical components in a servo system. It is an auxiliary motor indirect speed change device. Servo motors can control speed and position with very high accuracy. They can convert voltage signals into torque and speed to drive the controlled object. The most important component of a servo motor is the servo motor shaft. Traditional sealed shafts are all one piece and cannot be disassembled and replaced. Furthermore, the sealing at the joints is insufficient during the splicing process.

[0003] Chinese utility model patent application number 202121531193.5 proposes a servo motor shaft, but it uses a threaded structure to connect the various shaft segments. However, the threaded structure has a rotation direction, which means that the motor shaft can only rotate in a single rotation direction, resulting in a relatively limited function. Moreover, during rotation, the threaded connection may become tighter and tighter, leading to problems such as difficulty in disassembly or damage to the thread teeth. Therefore, this utility model proposes a split-type servo motor shaft to solve the above problems. Utility Model Content

[0004] To overcome the shortcomings of the prior art, this utility model provides a split-type servo motor shaft. The split-type structural design facilitates the disassembly and replacement of the shaft. The presence of the connecting layer can reduce the wear of the inner wall of the connecting cavity and improve the service life of the main shaft section. The reinforcing ring is used to improve the strength of the connection at both ends of the main shaft section and avoid deformation at the ends. The threaded cover can not only achieve a stable connection between the first shaft section and the main shaft section, but also achieve sealing through the sealing gasket ring.

[0005] Technical solution

[0006] A split-type servo motor shaft includes a main shaft section. Connecting chambers with rectangular axial cross-sections are provided on both end faces of the main shaft section. A reinforcing ring, fixed to the outer surface of the main shaft section, is provided on the outer side of each connecting chamber to prevent deformation of the shaft section ends. A detachable connecting layer is provided within the connecting chamber. A transmission column is provided within the connecting layer. A first shaft section is fixedly connected to the other side of the transmission column. A second shaft section and a third shaft section are fixedly connected to opposite ends of the first shaft section. A locking mechanism is provided between the connecting layer and the first shaft section to ensure the stability of the first shaft section.

[0007] Furthermore, the locking mechanism includes a connecting ring fixed on the connecting layer, an external thread provided on the outer ring surface of the connecting ring, an abutment ring provided on the outer surface of the first shaft segment that can contact the connecting ring, and a sealing gasket ring fixed on the first shaft segment on the side of the abutment ring away from the connecting ring.

[0008] Furthermore, a threaded cap is fitted onto the first shaft segment, and a sealing hole is passed through the side of the threaded cap away from the connecting layer. The internal thread of the threaded cap is threadedly connected to the external thread of the connecting ring.

[0009] Furthermore, the sealing gasket ring is inserted into the sealing hole to form a seal, and a first bolt is fixedly connected between the abutting ring and the threaded cover, the first bolt restricting the rotation of the threaded cover.

[0010] Furthermore, a sealing ring is provided in the connection gap between the connecting layer and the reinforcing ring.

[0011] Furthermore, the connecting layer is fixedly connected to the reinforcing ring by a second bolt.

[0012] Beneficial effects

[0013] Compared with the prior art, this utility model has the following advantages:

[0014] The split-type structural design facilitates the disassembly and replacement of the shaft. The presence of the connecting layer reduces wear on the inner wall of the connecting cavity and improves the service life of the main shaft section. When necessary, the connecting layer can be replaced. The reinforcing ring is used to improve the strength of the connection at both ends of the main shaft section and prevent deformation at the ends. The presence of the second bolt can ensure the axial position stability of the connecting layer. The threaded cover can not only achieve a stable connection between the first shaft section and the main shaft section, but also achieve a seal through the sealing gasket ring. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of a split-type servo motor shaft according to the present invention;

[0016] Figure 2 for Figure 1 Enlarged view of point A in the middle.

[0017] Attached icon number

[0018] Locking mechanism 900, main shaft section 1, first shaft section 2, second shaft section 3, transmission square column 4, connecting layer 5, connecting chamber 6, reinforcing layer ring 7, connecting ring 8, abutment ring 9, sealing gasket ring 10, sealing hole 11, first bolt 12, threaded cap 13, second bolt 14, sealing ring 15, third shaft section 16. Detailed Implementation

[0019] To better illustrate the content of this utility model, the following description is provided in conjunction with the accompanying drawings and embodiments:

[0020] have Figures 1-2 As shown, this utility model discloses a split-type servo motor shaft, including a main shaft section 1. Connecting chambers 6 with rectangular axial cross-sections are provided on both end faces of the main shaft section 1. A reinforcing ring 7, fixed to the outer surface of the main shaft section 1 to prevent deformation of the end of the main shaft section 1, is provided on the outer side of the connecting chambers 6. A detachable connecting layer 5 is provided inside the connecting chambers 6. A transmission column 4 is provided inside the connecting layer 5. A first shaft section 2 is fixedly connected to the other side of the transmission column 4. A second shaft section 3 and a third shaft section 16 are fixedly connected to the mutually distant ends of the first shaft section 2, respectively. A locking mechanism 900 is provided between the connecting layer 5 and the first shaft section 2 to ensure the stability of the first shaft section 2.

[0021] Furthermore, the locking mechanism 900 includes a connecting ring 8 fixed on the connecting layer 5, an external thread on the outer ring surface of the connecting ring 8, an abutment ring 9 on the outer surface of the first shaft segment 2 that can contact the connecting ring 8, and a sealing gasket ring 10 fixed on the first shaft segment 2 on the side of the abutment ring 9 away from the connecting ring 8.

[0022] Furthermore, a threaded cap 13 is fitted onto the first shaft segment 2. A sealing hole 11 is passed through the side of the threaded cap 13 away from the connecting layer 5. The internal thread of the threaded cap 13 is threadedly connected to the external thread of the connecting ring 8.

[0023] Furthermore, the sealing gasket 10 is inserted into the sealing hole 11 to form a seal, and the abutment ring 9 and the threaded cover 13 are also fixedly connected by a first bolt 12, which restricts the rotation of the threaded cover 13.

[0024] Furthermore, a sealing ring 15 is provided in the connection gap between the connecting layer 5 and the reinforcing ring 7.

[0025] Furthermore, the connecting layer 5 is fixedly connected to the reinforcing ring 7 by the second bolt 14.

[0026] Specifically, during connection, the transmission square post 4 is inserted into the connecting layer 5, while the connecting ring 8 contacts the abutment ring 9. Then, the threaded cover 13 is fitted onto the first shaft section 2 and the connecting ring 8 is screwed in, while the sealing hole 11 of the threaded cover 13 is squeezed and sealed with the sealing gasket ring 10. Then, the first bolt 12 is screwed between the abutment ring 9 and the threaded cover 13 to lock the angle of the threaded cover 13. At this point, the installation on one side is completed.

[0027] The presence of connecting layer 5 can reduce wear on the inner wall of connecting chamber 6 and improve the service life of spindle section 1. When necessary, connecting layer 5 can be replaced. Reinforcing ring 7 is used to improve the strength of the connection at both ends of spindle section 1 and prevent deformation at the ends. The presence of the second bolt can ensure the axial position stability of connecting layer 5. Threaded cover 13 can not only achieve a stable connection between first shaft section 2 and spindle section 1, but also achieve sealing through sealing gasket ring 10.

[0028] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although the technical solutions of this utility model have been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the various embodiments of this utility model.

Claims

1. A split-type servo motor shaft, characterized in that: The system includes a main shaft section (1), with a rectangular axial cross-section connecting chamber (6) provided on both ends of the main shaft section (1). A reinforcing ring (7) fixed on the outer surface of the main shaft section (1) is provided on the outside of the connecting chamber (6) to prevent deformation of the end of the main shaft section (1). A detachable connecting layer (5) is provided inside the connecting chamber (6). A transmission column (4) is provided inside the connecting layer (5). A first shaft section (2) is fixedly connected to the other side of the transmission column (4). A second shaft section (3) and a third shaft section (16) are fixedly connected to the opposite ends of the first shaft section (2). A locking mechanism (900) is provided between the connecting layer (5) and the first shaft section (2) to ensure the stability of the first shaft section (2).

2. The split-type servo motor shaft according to claim 1, characterized in that: The locking mechanism (900) includes a connecting ring (8) fixed on the connecting layer (5), the outer ring surface of the connecting ring (8) is provided with an external thread, the outer surface of the first shaft segment (2) is provided with an abutment ring (9) that can contact the connecting ring (8), and a sealing gasket ring (10) fixed on the first shaft segment (2) is provided on the side of the abutment ring (9) away from the connecting ring (8).

3. A split-type servo motor shaft according to claim 2, characterized in that: A threaded cap (13) is fitted onto the first shaft segment (2). A sealing hole (11) is passed through the side of the threaded cap (13) away from the connecting layer (5). The internal thread of the threaded cap (13) is threadedly connected to the external thread of the connecting ring (8).

4. A split-type servo motor shaft according to claim 3, characterized in that: The sealing gasket ring (10) is inserted into the sealing hole (11) to form a seal. The abutment ring (9) and the threaded cover (13) are also fixedly connected by a first bolt (12), which restricts the rotation of the threaded cover (13).

5. A split-type servo motor shaft according to claim 4, characterized in that: A sealing ring (15) is provided in the gap between the connecting layer (5) and the reinforcing ring (7).

6. A split-type servo motor shaft according to claim 5, characterized in that: The connecting layer (5) is fixedly connected to the reinforcing ring (7) by the second bolt (14).

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