Split type motor driving shaft

Abstract

The utility model relates to the technical field of motor driving shafts, in particular to a split type motor driving shaft which comprises a sleeve, a limiting shaft is arranged on the inner side of the sleeve, a motor main shaft is fixedly arranged at one end of the limiting shaft, a limiting bolt is arranged in the sleeve, and two fixing seats are arranged on the side face of the sleeve. The utility model has the beneficial effects that after the limiting bolt is fixed, the sliding block is placed in the sliding chute, the pressing block is moved downwards, so that the limiting bolt is limited and cannot rotate, the positioning bolt penetrates through the mounting seat and the sliding block, so that the sliding block and the mounting seat are fixed together, and the nut is arranged on the side surface of the positioning bolt, so that the positioning bolt is prevented from rotating; the sliding block and the pressing block are arranged, so that the sliding block has high stability, the pressing block has high stability, the limiting bolt is not prone to rotating, the loosening probability of the limiting bolt is reduced, and the stability of the device in the using process is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of motor drive shafts, in particular to a split-type motor drive shaft. Background Art

[0002] A motor drive shaft is a rotating shaft for transmitting the driving force of a motor. Usually, a sleeve is connected to one end of the motor drive shaft, and the sleeve is connected to a device. The sleeve and the motor drive shaft are fixed together by bolts, so that the device is driven to rotate by the motor drive shaft.

[0003] The patent specification with the publication number of CN220122715U discloses a split-type motor drive shaft, which includes a central shaft rod. Two vertically arranged and evenly circumferentially distributed limiting sliding strips are fixedly connected to the outer peripheral surface of the central shaft rod. Adjusting sleeve rods are slidably sleeved on the upper and lower ends of the central shaft rod. Limiting sliding grooves corresponding to the limiting sliding strips are formed on the inner peripheral wall of the adjusting sleeve rod. The limiting sliding strips are slidably connected in the corresponding limiting sliding grooves. A plurality of equally spaced and vertically arranged first positioning screw holes are formed on the outer peripheral surface of the central shaft rod. A first through hole is formed on the outer peripheral surface of the adjusting sleeve rod at a position on the same axis as the first positioning screw hole. A first fixing bolt penetrates through the first through hole. This utility model can freely move the adjusting sleeve rod to change the length of the drive shaft without the need for shaft rod installation work, improving the use flexibility of the drive shaft.

[0004] However, it is found that the above-mentioned split-type motor drive shaft has the following problems in the implementation of related technologies: The device fixes the sleeve rod and the main shaft together through the first fixing bolt. When the main shaft rotates, certain vibrations will occur between the main shaft and the sleeve, which easily causes the first fixing bolt to gradually loosen, and may cause the first fixing bolt to break away from the sleeve, resulting in the separation of the sleeve rod and the main shaft, reducing the stability of the device during use. In view of this, a split-type motor drive shaft is provided to overcome the above defects. Summary of the Utility Model

[0005] The purpose of this utility model is to propose a split-type motor drive shaft to solve the deficiencies existing in the prior art.

[0006] To achieve the above object, the present utility model adopts the following technical solution: A split motor drive shaft includes a sleeve, a limiting shaft is provided inside the sleeve, one end of the limiting shaft is fixedly provided with a motor main shaft, a limiting bolt is provided inside the sleeve, two fixing seats are provided on the side of the sleeve, fixing bolts are threadedly connected inside both of the two fixing seats, the sides of the two fixing bolts are threadedly connected to the inside of the sleeve, mounting seats are fixedly provided at the tops of the two fixing seats, sliding grooves are opened on one side of the two mounting seats, sliders are provided inside the two sliding grooves, a pressing block is fixedly provided between the two sliders, positioning bolts are threadedly connected inside the two mounting seats, the sides of the two positioning bolts are threadedly connected to the inside of the two sliders respectively, and nuts are threadedly connected to the sides of the two positioning bolts.

[0007] As a further description of the above technical solution: A first threaded hole is opened inside the sleeve, the side of the limiting bolt is threadedly connected to the inside of the first threaded hole, several second threaded holes are opened on the side of the limiting shaft, the side of the limiting bolt is threadedly connected to the inside of one of the second threaded holes, and the limiting shaft facilitates the limitation of the sleeve.

[0008] As a further description of the above technical solution: A fixing groove is opened at the bottom end of the pressing block, and the top end of the limiting bolt is fitted to the inside of the fixing groove, and the pressing block facilitates the limitation of the limiting bolt.

[0009] As a further description of the above technical solution: Two connecting grooves are opened inside the sleeve, two connecting sliding strips are fixedly provided on the side of the limiting shaft, and the inside of the two connecting grooves respectively slide with the sides of the two connecting sliding strips, and the sliding strips prevent the sleeve and the limiting shaft from shaking when rotating.

[0010] As a further description of the above technical solution: Positioning blocks are fixedly provided at the tops of the two sliders, and the sides of the two positioning blocks are respectively fitted to the inside of the two sliding grooves, and the sliders limit the pressing block.

[0011] As a further description of the above technical solution: Through grooves are opened inside the two positioning blocks, positioning shafts are provided inside the two through grooves, and the positioning shafts facilitate the limitation of the positioning blocks.

[0012] As a further description of the above technical solution: Two placing grooves are opened inside the two mounting seats, the inside of the four placing grooves respectively fit to the sides of the four positioning shafts, one ends of the four positioning shafts are fixedly provided with return springs, and one sides of the four return springs are respectively fixedly connected to one sides inside the four placing grooves, and the return springs facilitate the reset of the positioning shafts.

[0013] As a further description of the above technical solution: On the other side of each of the two mounting seats, two movable slots are provided. Inside each of the four movable slots, a handle is provided. One side of each of the four handles is fixedly connected to the side surface of one of the four positioning shafts. The handles facilitate the movement of the positioning shafts.

[0014] The utility model has the following beneficial effects:

[0015] A split motor drive shaft designed by the utility model, through design cooperation, after the limit bolt is fixed, the slider is placed in the chute, and the pressing block is moved downward, so that the limit bolt is limited and cannot rotate. At this time, the positioning bolt is passed through the mounting seat and the slider, so that the slider and the mounting seat are fixed together, and a nut is arranged on the side surface of the positioning bolt to prevent the positioning bolt from rotating, thereby making the slider have high stability, thereby making the pressing block have high stability, thereby making the limit bolt not easy to rotate, thereby reducing the probability of the limit bolt loosening, and thus improving the stability of the device during use;

[0016] A split motor drive shaft designed by the utility model, through design cooperation, the slider is placed at the top of the chute. By moving the handles with both hands, the two positioning shafts of the same mounting seat are driven to move away from each other, so that the chute is unblocked. At this time, the slider moves downward under the action of gravity, so that the slider and the positioning block enter the chute. When the bottom end of the pressing block is in contact with the top end of the limit bolt, the handles are released at this time, and the positioning shafts are extruded by the return spring, so that the positioning shafts are extruded out of the placement groove and enter the through groove of the positioning block, so that the positioning block and the mounting seat are fixed together and cannot move, so that the slider and the pressing block are further limited, so that even if the positioning bolt disengages from the mounting seat, the slider and the pressing block will not move, further improving the stability of the pressing block, and thus further improving the stability of the device during use. Description of the Drawings

[0017] Figure 1 is the overall structural schematic diagram of the utility model;

[0018] Figure 2 is the mounting structure schematic diagram of the slider of the utility model;

[0019] Figure 3 is the exploded structure schematic diagram of the mounting seat of the utility model;

[0020] Figure 4 is the internal structural schematic diagram of the mounting seat of the utility model.

[0021] Legend Explanation:

[0022] 1. Sleeve; 2. Limiting shaft; 3. Limiting bolt; 4. Fixed seat; 5. Fixed bolt; 6. Mounting seat; 7. Slide block; 8. Pressing block; 9. Positioning bolt; 10. Nut; 11. Connecting slide bar; 12. Positioning block; 13. Positioning shaft; 14. Return spring; 15. Handle; 16. Motor spindle. Detailed implementation manner

[0023] Refer to Figures 1 - 4 , a split motor drive shaft provided by the present utility model: includes a sleeve 1, a limiting shaft 2 is arranged inside the sleeve 1, one end of the limiting shaft 2 is fixedly provided with a motor spindle 16, the motor spindle 16 is convenient for driving the limiting shaft 2 and the sleeve 1 to rotate, a limiting bolt 3 is arranged inside the sleeve 1, two fixed seats 4 are arranged on the side of the sleeve 1, the fixed seats 4 are convenient for fixing the mounting seat 6, fixing bolts 5 are threadedly connected inside both fixed seats 4, the fixing bolts 5 are convenient for fixing the fixed seats 4 on the sleeve 1, the sides of both fixing bolts 5 are threadedly connected with the inside of the sleeve 1, mounting seats 6 are fixedly arranged at the top of both fixed seats 4, the mounting seats 6 are convenient for limiting the slide block 7, chutes are opened on one side of both mounting seats 6, slide blocks 7 are arranged inside both chutes, a pressing block 8 is fixedly arranged between both slide blocks 7, positioning bolts 9 are threadedly connected inside both mounting seats 6, the positioning bolts 9 are convenient for fixing the slide block 7 and the mounting seat 6 together, the sides of both positioning bolts 9 are threadedly connected with the inside of both slide blocks 7 respectively, and nuts 10 are threadedly connected to the sides of both positioning bolts 9.

[0024] As a further implementation of the above technical solution: a first threaded hole is opened inside the sleeve 1, the side of the limiting bolt 3 is threadedly connected with the inside of the first threaded hole, a plurality of second threaded holes are opened on the side of the limiting shaft 2, and the side of the limiting bolt 3 is threadedly connected with the inside of one of the second threaded holes, and the limiting shaft 2 is convenient for limiting the sleeve 1.

[0025] As a further implementation of the above technical solution: a fixing groove is opened at the bottom end of the pressing block 8, and the top end of the limiting bolt 3 is fitted with the inside of the fixing groove, and the pressing block 8 is convenient for limiting the limiting bolt 3.

[0026] As a further implementation of the above technical solution: two connecting grooves are opened inside the sleeve 1, two connecting slide bars 11 are fixedly arranged on the side of the limiting shaft 2, and the sides of the two connecting slide bars 11 slide with the inside of the two connecting grooves respectively, and the slide bars prevent the sleeve 1 and the limiting shaft 2 from shaking when rotating.

[0027] During specific implementation: The sleeve 1 moves on the limit shaft 2, so that the overall length of the sleeve 1 and the limit shaft 2 can be adjusted. When the required length is reached, the limit bolt 3 is placed into the corresponding first and second threaded holes, so that the sleeve 1 and the limit shaft 2 are fixed together. After the limit bolt 3 is fixed, the slider 7 is placed into the chute, and the pressing block 8 is moved downward. A hexagonal fixing groove is provided at the bottom end of the pressing block 8. The limit bolt 3 is limited through the fixing groove, so that the limit bolt 3 cannot rotate. At this time, the positioning bolt 9 passes through the mounting seat 6 and the slider 7, so that the slider 7 and the mounting seat 6 are fixed together, and a nut 10 is arranged on the side of the positioning bolt 9 to prevent the positioning bolt 9 from rotating, so that the slider 7 has high stability, so that the pressing block 8 has high stability, so that the limit bolt 3 is not easy to rotate, thereby reducing the probability of the limit bolt 3 loosening, and thus improving the stability of the device during use.

[0028] As a further implementation of the above technical solution: Positioning blocks 12 are fixedly provided at the tops of the two sliders 7, and the sides of the two positioning blocks 12 are respectively fitted with the interiors of the two chutes, and the slider 7 limits the pressing block 8.

[0029] As a further implementation of the above technical solution: Through grooves are provided inside the two positioning blocks 12, and positioning shafts 13 are provided inside the two through grooves. The positioning shafts 13 facilitate the limitation of the positioning blocks 12.

[0030] As a further implementation of the above technical solution: Two placement grooves are provided inside each of the two mounting seats 6, and the interiors of the four placement grooves are respectively fitted with the sides of the four positioning shafts 13. One ends of the four positioning shafts 13 are fixedly provided with return springs 14, and one sides of the four return springs 14 are respectively fixedly connected to one sides inside the four placement grooves. The return springs 14 facilitate the reset of the positioning shafts 13.

[0031] As a further implementation of the above technical solution: Two activity grooves are provided on the other sides of the two mounting seats 6, and handles 15 are provided inside the four activity grooves. One sides of the four handles 15 are respectively fixedly connected to the sides of the four positioning shafts 13. The handles 15 facilitate the movement of the positioning shafts 13.

[0032] During specific implementation: When the slider 7 is placed into the chute, the slider 7 will be limited by the positioning shaft 13 and cannot move downward. At this time, place the slider 7 in the chute, and move the handle 15 with both hands, so that the two handles 15 within the same mounting seat 6 move away from each other, thereby driving the two positioning shafts 13 of the same mounting seat 6 to move away from each other, causing the positioning shafts 13 to retract into the placement groove, thus making the chute unobstructed. At this time, the slider 7 moves downward under the action of gravity, so that the slider 7 and the positioning block 12 enter the chute. When the bottom end of the pressing block 8 abuts against the top end of the limit bolt 3, release the handle 15 at this time, and the positioning shaft 13 is squeezed by the return spring 14, causing the positioning shaft 13 to extrude out of the placement groove and enter the through groove of the positioning block 12, thereby fixing the positioning block 12 and the mounting seat 6 together and preventing them from moving, so that the slider 7 and the pressing block 8 are further limited. Even if the positioning bolt 9 detaches from the mounting seat 6, the slider 7 and the pressing block 8 will not move, further improving the stability of the pressing block 8, and thus further improving the stability of the device during use.

[0033] Finally, it should be noted that the above are only the preferred embodiments 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 described 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. A split motor drive shaft, comprising a sleeve (1), characterized in that: A limiting shaft (2) is provided on the inner side of the sleeve (1), a motor main shaft (16) is fixedly provided on one end of the limiting shaft (2), a limiting bolt (3) is provided inside the sleeve (1), two fixing seats (4) are provided on the side of the sleeve (1), the interiors of the two fixing seats (4) are both threadedly connected with fixing bolts (5), the sides of the two fixing bolts (5) are both threadedly connected with the interior of the sleeve (1), a mounting seat (6) is fixedly provided on the top of the two fixing seats (4), a sliding groove is provided on one side of the two mounting seats (6), a slider (7) is provided inside the two sliding grooves, a pressing block (8) is fixedly provided between the two sliders (7), the interiors of the two mounting seats (6) are both threadedly connected with positioning bolts (9), the sides of the two positioning bolts (9) are respectively threadedly connected with the interiors of the two sliders (7), and the sides of the two positioning bolts (9) are both threadedly connected with nuts (10).

2. The split motor drive shaft according to claim 1, characterized in that: The sleeve (1) has a first threaded hole inside, the inside of the first threaded hole is threadedly connected to the side of the limiting bolt (3), the side of the limiting shaft (2) has a plurality of second threaded holes, the side of the limiting bolt (3) is threadedly connected to the inside of one of the second threaded holes.

3. The split motor drive shaft according to claim 1, characterized in that: A fixing groove is provided at the bottom end of the pressing block (8), and the interior of the fixing groove fits with the top end of the limiting bolt (3).

4. The split motor drive shaft according to claim 1, characterized in that: The sleeve (1) has two connection grooves formed inside, and two connection slide bars (11) are fixedly provided on the side of the limit shaft (2), and the insides of the two connection grooves slide with the side surfaces of the two connection slide bars (11) respectively.

5. The split motor drive shaft according to claim 1, characterized in that: Positioning blocks (12) are fixedly provided at the top ends of the two sliding blocks (7), and the side surfaces of the two positioning blocks (12) are respectively fitted with the insides of the two sliding grooves.

6. The split motor drive shaft according to claim 5, characterized in that: The two positioning blocks (12) are each provided with a through slot inside, and the two through slots are each provided with a positioning shaft (13) inside.

7. The split motor drive shaft according to claim 6, characterized in that: Two placement grooves are provided inside the two mounting seats (6), and the insides of the four placement grooves are respectively fitted with the side surfaces of the four positioning shafts (13). One end of the four positioning shafts (13) is fixedly provided with a return spring (14), and one side of the four return springs (14) is respectively fixedly connected to one side of the inside of the four placement grooves.

8. The split motor drive shaft according to claim 7, characterized in that: Two movable grooves are provided on the other side of the two mounting seats (6), and handles (15) are provided inside the four movable grooves. One side of the four handles (15) is fixedly connected to the side surfaces of the four positioning shafts (13) respectively.

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