Split type servo motor shaft

Abstract

The utility model relates to a kind of split type servo motor shaft in motor shaft technical field.Claw block is clamped into card slot, the locking of first shaft body is completed, so that the transmission between first shaft body and second shaft body is more stable, in high vibration and high torque working environment, first shaft body and second shaft body are not prone to looseness between, when rotating, first shaft body can drive second shaft body to rotate, the utility model is by detachable locking assembly, so that after the wear of claw block, locking assembly can be replaced separately, solve the drawback that shaft is integrally arranged and needs to be replaced as a whole after wear, reduce maintenance cost, and through the split type setting of first shaft body and second shaft body, it is convenient to replace second shaft body of different length according to actual needs, to improve the use flexibility of driving shaft.

Description

Technical Field

[0001] This utility model relates to the field of motor shaft technology, and in particular to a split-type servo motor shaft. Background Technology

[0002] Split servo motor shafts refer to a structure where the servo motor and motor shaft are not integrally formed; the servo motor and motor shaft are installed separately, which facilitates the selection and combination of different servo motors and motor shafts according to requirements.

[0003] For example, Chinese patent application CN202321064387.8 discloses a split-type motor drive shaft, which specifically includes a central shaft. Multiple equally spaced and vertically arranged first positioning screw holes are formed on the outer circumferential surface of the central shaft. A first through hole is formed on the outer circumferential surface of an adjusting sleeve rod at a position coaxial with the first positioning screw holes. A first positioning bolt passes through the first through hole, and one end of the first positioning bolt is threadedly connected to the corresponding first positioning screw hole. When the first positioning bolt is removed, the adjusting sleeve rod can be moved freely, thereby changing the length of the drive shaft. After adjusting to a suitable length, the first positioning bolt is inserted into the first through hole and screwed into the corresponding first positioning screw hole to fix the adjusting sleeve rod, thus determining the length of the drive shaft. However, this design still has the following technical problems:

[0004] The adjusting sleeve is fixed to the central shaft with bolts. In high vibration and high torque working environments, axial force will appear between the central shaft and the adjusting sleeve. The above structure is fixed with bolts, which may cause the bolts to loosen. Loose bolts will cause the connection between the central shaft and the adjusting sleeve to be unstable. Utility Model Content

[0005] To address the problem mentioned in the background art where the connection between the central shaft and the adjusting sleeve is prone to instability, this utility model provides the following technical solution:

[0006] A split-type servo motor shaft includes a first shaft body and a second shaft body;

[0007] Multiple sliders are mounted on the outer wall of the end of the first shaft facing the second shaft, and multiple slots are provided in the middle of the sliders.

[0008] A connector is installed at one end of the second shaft facing the first shaft. The connector has a hole in the middle and multiple grooves for limiting the slider are formed on the inner wall of the hole.

[0009] The slide is equipped with a locking component for fixing the second shaft in conjunction with the slot.

[0010] Furthermore, a limiting ring for positioning the connector is installed in the middle of the first shaft.

[0011] Furthermore, the groove cavity of the slide is provided with multiple limiting holes, one end of the limiting hole is connected to a vent hole, one end of the vent hole is connected to an annular vent hole, and the annular vent hole is connected to the multiple vent holes.

[0012] Furthermore, a valve is installed at one end of the vent, and a protective cover is installed on the outside of the valve.

[0013] Furthermore, the locking assembly includes a square slider that slides within a groove, with multiple locking blocks mounted on one side of the square slider facing the first shaft for engaging with the slot, and multiple piston rods that slide within limiting holes mounted on the other side of the square slider, with a piston mounted at one end of each piston rod.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] When assembling the first and second shafts, multiple locking components are first installed in the slide grooves, with the piston rod inserted into the limiting hole and the square slider resting against one side of the slide groove cavity. Then, the first shaft is inserted into the insertion hole, and the slider is simultaneously inserted into the slide groove, so that the connector and the limiting ring abut against each other. Gas is supplied to the vent holes through the air pump's inflation head and valve. The gas enters multiple vent holes through the annular vent hole and pushes the piston in the limiting hole, causing the square slider to move towards the slider. Simultaneously, the locking block engages in the locking groove, completing the locking of the first shaft. The transmission between the first and second shafts is more stable. In high-vibration and high-torque working environments, the first and second shafts are less prone to loosening. When the first shaft rotates, it can drive the second shaft to rotate. This utility model uses a detachable locking component, so that when the locking block is worn, the locking component can be replaced separately. This solves the drawback of needing to replace the whole shaft after wear when it is set as an integral unit, reducing maintenance costs. Moreover, the separate setting of the first and second shafts makes it easy to replace the second shaft of different lengths according to actual needs, thereby improving the flexibility of the drive shaft. Attached Figure Description

[0016] To more clearly illustrate the embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings in the following description are merely exemplary, and those skilled in the art can derive other embodiments based on the provided drawings without creative effort.

[0017] The structures, proportions, sizes, etc. illustrated in this specification are only for the purpose of assisting those skilled in the art in understanding and reading the content disclosed herein, and are not intended to limit the implementation conditions of this utility model. Therefore, they have no substantial technical significance. Any modifications to the structure, changes in the proportions, or adjustments to the size, without affecting the effects and objectives that this utility model can produce, should still fall within the scope of the technical content disclosed in this utility model.

[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0019] Figure 2 This is a schematic diagram of the structure of the first shaft of this utility model;

[0020] Figure 3 This is a schematic diagram showing the connection between the second shaft and the locking assembly of this utility model;

[0021] Figure 4 This is a schematic diagram of the structure of the second shaft of this utility model;

[0022] Figure 5 This is a schematic diagram of the locking component of this utility model.

[0023] The following is a list of component names represented by the various reference numerals in the attached figures:

[0024] 10-First shaft, 11-Limiting ring, 12-Slider, 13-Slot, 20-Second shaft, 21-Connector, 22-Insertion hole, 23-Slide groove, 24-Limiting hole, 25-Ventilation hole, 26-Valve nozzle, 27-Protective cover, 28-Annular vent, 30-Locking assembly, 31-Square slider, 32-Card block, 33-Piston rod, 34-Piston. Detailed Implementation

[0025] The following specific embodiments illustrate the implementation of this utility model. Those skilled in the art can easily understand other advantages and effects of this utility model from the content disclosed in this specification. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0026] The terms such as "upper," "lower," "left," "right," and "middle" used in this specification are merely for clarity of description and are not intended to limit the scope of implementation of this utility model. Any changes or adjustments to their relative relationships, without substantially altering the technical content, shall also be considered within the scope of implementation of this utility model.

[0027] Please see Figures 1-5 This utility model provides a split servo motor shaft, including a first shaft 10 and a second shaft 20. The first shaft 10 is the shaft of the servo motor, and the second shaft 20 is an external connecting shaft. A plurality of sliders 12 are fixedly installed on the outer wall of the end of the first shaft 10 facing the second shaft 20, and the plurality of sliders 12 are circumferentially distributed on the outer wall of the first shaft 10. A plurality of slots 13 are provided in the middle of the sliders 12. By providing a plurality of slots 13 on the sliders 12, the slots 13 cooperate with the locking component 30 to fix the second shaft 20 to one side of the first shaft 10, thereby avoiding the situation where the axial force causes unstable transmission of the second shaft 20.

[0028] A connector 21 is fixedly installed at one end of the second shaft 20 facing the first shaft 10, and a limiting ring 11 for positioning the connector 21 is fixedly installed in the middle of the first shaft 10. When the first shaft 10 and the second shaft 20 are assembled, the connector 21 is inserted from the right side of the first shaft 10. When the left wall of the connector 21 and the right wall of the limiting ring 11 abut against each other, the locking block 32 can be inserted into the locking groove 13 to lock the second shaft 20, making the transmission between the first shaft 10 and the second shaft 20 more stable. In a working environment with high vibration and high torque, the first shaft 10 and the second shaft 20 are less likely to loosen.

[0029] The connector 21 has a socket 22 in the middle. The inner wall of the socket 22 has multiple grooves 23 for limiting the slider 12. When the first shaft 10 and the second shaft 20 are assembled, the side of the first shaft 10 with the slider 12 is inserted into the socket 22, and the slider 12 is inserted into the grooves 23 at the same time. When the first shaft 10 rotates, it can drive the connector 21 to rotate at the same time, and then drive the second shaft 20 to rotate, so as to complete the transmission operation.

[0030] A locking component 30 is installed in the slide groove 23 to fix the second shaft 20 in conjunction with the slot 13. The locking components 30 installed in multiple slide grooves 23 make the connection between the second shaft 20 and the first shaft 10 more stable. The locking component 30 includes a square slider 31 that slides in the slide groove 23. Multiple locking blocks 32 for engaging with the slot 13 are installed on the side of the square slider 31 facing the first shaft 10. When the connector 21 and the limiting ring 11 abut against each other, the 332 and the slot 13 are aligned, so that when the square slider 31 moves toward the first shaft 10, the multiple locking blocks 32 can be smoothly engaged into the slot 13 at the same time.

[0031] Multiple limiting holes 24 are provided inside the groove cavity of the slide 23. Multiple piston rods 33 are installed on the other side of the square slider 31, which slide within the limiting holes 24. A piston 34 is installed at one end of each piston rod 33. One end of the limiting hole 24 is connected to a vent hole 25, and one end of the vent hole 25 is connected to an annular vent hole 28. The annular vent hole 28 is connected to the multiple vent holes 25. A valve 26 is installed at one end of the vent hole 25, and a protective cover 27 is installed on the outside of the valve 26.

[0032] When assembling the first shaft 10 and the second shaft 20, multiple locking components 30 are first installed in the slide groove 23, so that the piston rod 33 is inserted into the limiting hole 24, and the square slider 31 is abutted against one side of the groove cavity of the slide groove 23. Then, the first shaft 10 is inserted into the insertion hole 22, and the slider 12 is simultaneously inserted into the slide groove 23, so that the connector 21 and the limiting ring 11 abut against each other. Gas is supplied to the vent hole 25 through the air pump's inflation head and valve 26. The gas enters the multiple vent holes 25 through the annular vent hole 28, which increases the air pressure in the vent hole 25 and pushes the piston 34 in the limiting hole 24. The square slider 31 moves towards the slider 12, and the locking block 32 simultaneously engages in the slot 13, locking the first shaft 10. This allows the first shaft 10 to rotate, driving the second shaft 20 to rotate as well. The detachable locking component 30 allows the locking component 30 to be replaced separately after the locking block 32 wears out, solving the problem of needing to replace the entire shaft after wear in an integrated design, thus reducing maintenance costs. Furthermore, the separate design of the first shaft 10 and the second shaft 20 facilitates the replacement of the second shaft 20 with different lengths as needed, improving the flexibility of the drive shaft.

[0033] When the first shaft 10 is released from the lock, the gas in the vent 25 is extracted, which reduces the air pressure in the vent 25 and the limiting hole 24. A pressure difference is formed in the limiting hole 24 and the slide groove 23, causing the limiting hole 24 to move towards the vent 25. This causes the locking component 30 to move away from the first shaft 10, and the locking block 32 moves away from the locking groove 13 at the same time, thus contacting the lock on the first shaft 10, and the first shaft 10 can be disassembled.

[0034] Based on the above description and accompanying drawings, those skilled in the art can understand and implement this utility model. Furthermore, any non-creative modifications made to this utility model by those skilled in the art without inventive effort are still within the protection scope of this utility model.

Claims

1. A split-type servo motor shaft, comprising a first shaft body (10) and a second shaft body (20), characterized in that: Multiple sliders (12) are installed on the outer wall of one end of the first shaft (10) facing the second shaft (20), and multiple slots (13) are provided in the middle of the sliders (12). The second shaft (20) is equipped with a connector (21) at one end facing the first shaft (10). The connector (21) has a socket (22) in the middle and a plurality of grooves (23) for limiting the slider (12) are provided on the inner wall of the socket (22). The slide (23) is equipped with a locking component (30) for fixing the second shaft (20) in conjunction with the slot (13).

2. A split-type servo motor shaft according to claim 1, characterized in that: A limiting ring (11) for positioning the connector (21) is installed in the middle of the first shaft (10).

3. A split-type servo motor shaft according to claim 1, characterized in that: The groove (23) has multiple limiting holes (24) inside its cavity. One end of the limiting hole (24) is connected to a vent hole (25), and one end of the vent hole (25) is connected to an annular vent hole (28). The annular vent hole (28) and the multiple vent holes (25) are connected to each other.

4. A split-type servo motor shaft according to claim 3, characterized in that: A valve (26) is installed at one end of the vent (25), and a protective cover (27) is installed on the outside of the valve (26).

5. A split-type servo motor shaft according to claim 3, characterized in that: The locking assembly (30) includes a square slider (31) that slides in a groove (23). On the side of the square slider (31) facing the first shaft (10), a plurality of locking blocks (32) are installed for engaging with the slot (13). On the other side of the square slider (31), a plurality of piston rods (33) that slide in a limiting hole (24) are installed. A piston (34) is installed at one end of the piston rod (33).

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