Split type motor driving shaft

Abstract

The utility model relates to the technical field of motor parts, in particular to a split type motor driving shaft which comprises a first shaft body, one side of the first shaft body is connected with a second shaft body, one side of the second shaft body is fixedly provided with a fixing column, the end portion of the fixing column is movably sleeved with a third shaft body, and the top of the fixing column is provided with a plurality of clamping grooves. A circular groove is formed in the third shaft body, the fixing column is slidably inserted into the circular groove, a T-shaped piece is slidably arranged in the third shaft body, a clamping rod is arranged at the bottom of the T-shaped piece, and the other end of the clamping rod is slidably inserted into one of the clamping grooves; the pull block is pulled upwards, the pull block can drive the T-shaped piece to stretch the reset spring and enable the clamping rod to slide into the third shaft body, then when the circular groove slides to a proper position on the fixing column, finally the pull block is loosened, at the moment, the reset spring resets the T-shaped piece due to the elasticity of the reset spring, the clamping rod is inserted into the clamping groove in the lower portion in a sliding mode, and therefore the clamping rod is fixed. Therefore, the length of the driving shaft can be conveniently adjusted, and the operation process is convenient and fast.

Description

Technical Field

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

[0002] An electric motor is a device that converts electrical energy into mechanical energy. It uses an energized coil to generate a rotating magnetic field and acts on the rotor to form a magneto-electrodynamic rotating torque. Electric motors are divided into DC motors and AC motors according to the power supply used. During use, the motor drive shaft is easily subjected to alternating stresses such as twisting, shearing, tension, compression, and impact, which may cause deformation and damage at the connection drive position between the motor drive shaft and the equipment. Therefore, in order to improve replacement efficiency, a detachable motor drive shaft is now available.

[0003] For example, the patent specification of an existing Chinese patent (publication number: CN220122715U) discloses a split motor drive shaft. By setting an adjusting sleeve rod, a limit slide bar, a first positioning screw hole and a first positioning bolt, the adjusting sleeve rod can be freely moved during installation to change the length of the drive shaft. After adjusting to the appropriate 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, thereby determining the length of the drive shaft. There is no need to add the shaft rod, thereby improving the flexibility of use of the drive shaft.

[0004] However, in the implementation of relevant technologies, it was found that the split motor drive shaft designed above has the following problems: although the split motor drive shaft is removable and replaceable, and the length of the shaft body can be adjusted according to different application scenarios, it is positioned by bolts during adjustment. Since the shaft body may need to be repeatedly adjusted in length, personnel need to repeatedly operate with the help of screwdriver tools. This process is time-consuming and labor-intensive. In view of this, a split motor drive shaft is provided to overcome the above-mentioned defects. Utility Model Content

[0005] The utility model aims to solve the shortcomings in the prior art and proposes a split motor drive shaft.

[0006] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a split motor drive shaft, including a first shaft body, one side of the first shaft body is connected to the second shaft body, one side of the second shaft body is fixedly installed with a fixing column, the end of the fixing column is movably sleeved with a third shaft body, the top of the fixing column is provided with a plurality of slots, a circular groove is provided in the third shaft body, the fixing column is slidably inserted in the circular groove, a T-shaped piece is slidably arranged in the third shaft body, a clamping rod is provided at the bottom of the T-shaped piece, the other end of the clamping rod is slidably inserted in one of the slots, a return spring is movably sleeved on the clamping rod, the two ends of the return spring are respectively connected to the T-shaped piece and the third shaft body, and a pull block is provided on the top of the T-shaped piece.

[0007] As a further description of the above technical solution: a cavity and a placement groove are respectively opened inside and on the top of the third shaft body, the T-shaped piece is slidably connected in the cavity, and the top of the T-shaped piece slides through the cavity to extend into the placement groove and is fixedly connected to the pull block, the pull block is slidably connected in the placement groove, and the two ends of the reset spring are respectively fixedly connected to the T-shaped piece and the inner wall of the cavity.

[0008] As a further description of the above technical solution: a slide plate is slidably arranged in the pull block, a positioning rod is arranged on one side of the slide plate, a positioning opening is opened in the third axis body, the other end of the positioning rod is slidably inserted in the positioning opening, a support spring is arranged on the side of the slide plate away from the positioning rod, the other end of the support spring is arranged in the pull block, a pull plate is arranged on the top of the slide plate, and a pull piece is arranged on the top of the pull plate. After the length is adjusted, the support spring pushes the slide plate away due to its own elastic force, so that the positioning rod is slidably inserted in the positioning opening, thereby limiting the pull block, avoiding the problem of the card rod sliding out of the card slot due to the centrifugal force generated by the high-speed rotation of the drive shaft, and improving the stability during use. Through the cooperation of the pull plate and the pull piece, the positioning rod can be easily slid out of the positioning opening, thereby facilitating pulling the pull block.

[0009] As a further description of the above technical solution: a sliding cavity and a sliding opening are respectively opened inside and on the top of the pull block, the sliding cavity and the sliding opening are communicated with each other, the sliding plate is slidably connected in the sliding cavity, the pulling plate is slidably inserted in the sliding opening, and the two ends of the support spring are respectively fixedly connected to the sliding plate and the inner wall of the sliding cavity.

[0010] As a further description of the above technical solution: the outer surface of the pull piece is provided with anti-slip particles, and the support spring is made of stainless steel, which can increase the friction between the person's hand and the pull piece, thereby helping to solve the problem of slipping when pulling the pull piece. In addition, the stainless steel material can effectively slow down the rust rate of the support spring, thereby helping to extend the service life of the support spring.

[0011] As a further description of the above technical solution: a positioning block is fixedly installed on one side of the first shaft body, a disassembly groove is opened on one side of the second shaft body, the positioning block is slidably inserted in the disassembly groove, a hand-tightening bolt is inserted on the front side of the second shaft body, and the end of the hand-tightening bolt extends into the positioning block.

[0012] As a further description of the above technical solution: the front sides of the positioning block and the second shaft body are both provided with threaded holes, and the end threads of the hand-tightening bolts are inserted into the threaded holes. When the first shaft body and the second shaft body need to be replaced, the hand-tightening bolts are first unscrewed from the threaded holes, and then the first shaft body and the damaged second shaft body are separated, and then the new second shaft body is driven by the disassembly groove sleeve to be installed on the positioning block, and then the hand-tightening bolts are screwed into the threaded holes to conveniently complete the replacement.

[0013] As a further description of the above technical solution: the outer surface of the hand-tightening bolt is provided with anti-slip textures, which can increase the friction between the hand of the person and the hand-tightening bolt, so that the person can better apply force when turning the hand-tightening bolt.

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

[0015] The split motor drive shaft designed in the utility model can drive the T-shaped piece to stretch the reset spring and slide the clamping rod into the third shaft body by pulling the pull block upwards, and then slide the circular groove on the fixed column to a suitable position, and finally release the pull block. At this time, the reset spring resets the T-shaped piece due to its own elastic force, so that the clamping rod can be slidably inserted into the clamping groove below, and the length of the drive shaft can be conveniently adjusted. The above process is relatively convenient.

[0016] The split motor drive shaft designed by the utility model can, through the cooperation of the slide plate, the positioning rod and the positioning port, push the slide plate away due to its own elastic force after the length is adjusted, so that the positioning rod can be slidably inserted in the positioning port, thereby limiting the pull block, and avoiding the problem of the clamping rod sliding out of the clamping slot by itself due to the centrifugal force generated by the high-speed rotation of the drive shaft, thereby improving the stability during use, and through the cooperation of the pull plate and the pull piece, the positioning rod can be easily slid out of the positioning port, thereby facilitating pulling the pull block. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0018] Figure 2 It is a three-dimensional structural schematic diagram of the interior of the third shaft body of the utility model in a half-section view;

[0019] Figure 3 It is a schematic diagram of a three-dimensional structure of a half-section view of the interior of the second shaft body of the utility model;

[0020] Figure 4 For this utility model Figure 2 Enlarged view of point A in the middle.

[0021] Legend:

[0022] 1. First axis; 2. Second axis; 3. Fixed column; 4. Slot; 5. Third axis; 6. Circular groove; 7. T-shaped piece; 8. Clamping rod; 9. Tightening bolt; 10. Reset spring; 11. Pull block; 12. Cavity; 13. Placement groove; 14. Slide plate; 15. Positioning rod; 16. Positioning opening; 17. Support spring; 18. Pull plate; 19. Pull piece; 20. Sliding cavity; 21. Sliding opening; 22. Positioning block; 23. Disassembly groove; 24. Threaded hole. DETAILED DESCRIPTION

[0023] Reference Figure 1-4 The utility model provides a split motor drive shaft: it includes a first shaft body 1, one side of the first shaft body 1 is connected to the second shaft body 2, one side of the second shaft body 2 is fixedly installed with a fixing column 3, the end of the fixing column 3 is movably sleeved with a third shaft body 5, the top of the fixing column 3 is provided with a plurality of slots 4, a circular groove 6 is provided in the third shaft body 5, the fixing column 3 is slidably inserted in the circular groove 6, a T-shaped piece 7 is slidably arranged in the third shaft body 5, a clamping rod 8 is provided at the bottom of the T-shaped piece 7, the other end of the clamping rod 8 is slidably inserted in one of the slots 4, a reset spring 10 is movably sleeved on the clamping rod 8, the two ends of the reset spring 10 are respectively connected to the T-shaped piece 7 and the third shaft body 5, and a pull block 11 is provided on the top of the T-shaped piece 7;

[0024] A cavity 12 and a placement groove 13 are respectively provided inside and on the top of the third shaft body 5. The T-shaped piece 7 is slidably connected in the cavity 12, and the top of the T-shaped piece 7 slides through the cavity 12 to extend into the placement groove 13 and is fixedly connected to the pull block 11. The pull block 11 is slidably connected in the placement groove 13, and both ends of the reset spring 10 are fixedly connected to the T-shaped piece 7 and the inner wall of the cavity 12, respectively.

[0025] During specific implementation, when it is necessary to adjust the distance between the second shaft body 2 and the third shaft body 5, since a distance is set between the pull block 11 and one side of the placement groove 13, the pull block 11 can be pulled upward first, so that the pull block 11 drives the T-shaped piece 7 to stretch the reset spring 10 and make the clamping rod 8 slide into the cavity 12, and then the circular groove 6 is slid on the fixed column 3. When it slides to a suitable position, the pull block 11 is released. At this time, the reset spring 10 resets the T-shaped piece 7 due to its own elastic force, so that the clamping rod 8 is slidably inserted into the clamping groove 4 below, and the length of the drive shaft can be conveniently adjusted. This process is relatively convenient to operate.

[0026] As a further implementation scheme of the above technical scheme: a slide plate 14 is slidably arranged in the pull block 11, a positioning rod 15 is arranged on one side of the slide plate 14, a positioning opening 16 is opened in the third shaft body 5, the other end of the positioning rod 15 is slidably inserted in the positioning opening 16, a support spring 17 is arranged on the side of the slide plate 14 away from the positioning rod 15, the other end of the support spring 17 is arranged in the pull block 11, a pull plate 18 is arranged on the top of the slide plate 14, and a pull piece 19 is arranged on the top of the pull plate 18, a sliding cavity 20 and a sliding opening 21 are respectively opened in the interior and top of the pull block 11, the sliding cavity 20 and the sliding opening 21 are connected, the slide plate 14 is slidably connected in the sliding cavity 20, the pull plate 18 is slidably inserted in the sliding opening 21, and the two ends of the support spring 17 are fixedly connected to the slide plate 14 and the inner wall of the sliding cavity 20 respectively.

[0027] In the specific implementation, on the basis of the above implementation, after the length is adjusted, the support spring 17 pushes the slide plate 14 away due to its own elastic force, so that the positioning rod 15 is slidably inserted in the positioning port 16, and the pull block 11 can be limited. The problem of the centrifugal force generated by the high-speed rotation of the drive shaft causing the card rod 8 to slide out of the card slot 4 by itself can be avoided, thereby improving the stability during use. Through the cooperation of the pull plate 18 and the pull piece 19, the positioning rod 15 can be easily slid out of the positioning port 16, thereby facilitating pulling the pull block 11.

[0028] As a further implementation of the above technical solution: the outer surface of the pull piece 19 is provided with anti-skid particles, and the material of the support spring 17 is stainless steel. The friction between the hand of the person and the pull piece 19 can be increased, thereby helping to solve the problem of slipping when pulling the pull piece 19. In addition, the stainless steel material can effectively slow down the corrosion rate of the support spring 17, thereby helping to extend the service life of the support spring 17.

[0029] As a further implementation scheme of the above technical scheme: a positioning block 22 is fixedly installed on one side of the first shaft body 1, a disassembly groove 23 is provided on one side of the second shaft body 2, the positioning block 22 is slidably inserted in the disassembly groove 23, a hand-tightening bolt 9 is inserted in the front side of the second shaft body 2, the end of the hand-tightening bolt 9 extends into the positioning block 22, and threaded holes 24 are provided on the front sides of the positioning block 22 and the second shaft body 2, and the end of the hand-tightening bolt 9 is threadedly inserted in the threaded hole 24. When the first shaft body 1 and the second shaft body 2 need to be replaced, the hand-tightening bolt 9 is first screwed out of the threaded hole 24, and then the first shaft body 1 and the damaged second shaft body 2 are separated, and then the new second shaft body 2 drives the disassembly groove 23 to be sleeved on the positioning block 22, and then the hand-tightening bolt 9 is screwed into the threaded hole 24 to conveniently complete the replacement.

[0030] As a further implementation of the above technical solution: the outer surface of the hand-tightening bolt 9 is provided with anti-skid lines, which can increase the friction between the hand of the person and the hand-tightening bolt 9, so that the person can better apply force when turning the hand-tightening bolt 9.

[0031] Working principle:

[0032] When using the utility model, when it is necessary to replace the first shaft body 1 and the second shaft body 2, firstly unscrew the hand-tightening bolt 9 from the threaded hole 24, then separate the first shaft body 1 and the damaged second shaft body 2, then drive the new second shaft body 2 to sleeve the disassembly groove 23 on the positioning block 22, and then screw the hand-tightening bolt 9 into the threaded hole 24 to conveniently complete the replacement. When it is necessary to adjust the distance between the second shaft body 2 and the third shaft body 5, firstly pull the protruding pull piece 19 on the pull block 11 upwards, so that the pull block 11 drives the T-shaped piece 7 to stretch the reset spring 10 and make the clamping rod 8 slide into the cavity 12. Then the circular groove 6 is slid on the fixed column 3. When it slides to the appropriate position, the pull block 11 is released. At this time, the reset spring 10 resets the T-shaped piece 7 due to its own elastic force, so that the card rod 8 is slidably inserted into the slot 4 below, and the length of the drive shaft can be easily adjusted. In addition, after the length is adjusted, the support spring 17 pushes the slide plate 14 away due to its own elastic force, so that the positioning rod 15 is slidably inserted into the positioning port 16, and the pull block 11 can be limited. The problem of the card rod 8 sliding out of the slot 4 due to the centrifugal force generated by the high-speed rotation of the drive shaft can be avoided, thereby improving the stability during use.

[0033] Finally, it should be noted that the above are only preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A split motor drive shaft, comprising a first shaft (1), one side of the first shaft (1) is connected to a second shaft (2), one side of the second shaft (2) is fixedly mounted with a fixing column (3), the end of the fixing column (3) is movably sleeved with a third shaft (5), a top of the fixing column (3) is provided with a plurality of slots (4), a circular groove (6) is provided in the third shaft (5), and the fixing column (3) is slidably inserted in the circular groove (6), characterized in that: A T-shaped piece (7) is slidably arranged inside the third shaft body (5), a clamping rod (8) is arranged at the bottom of the T-shaped piece (7), the other end of the clamping rod (8) is slidably inserted into one of the clamping grooves (4), a return spring (10) is movably sleeved on the clamping rod (8), the two ends of the return spring (10) are respectively connected to the T-shaped piece (7) and the third shaft body (5), and a pull block (11) is arranged on the top of the T-shaped piece (7).

2. The split motor drive shaft according to claim 1, characterized in that: The interior and top of the third shaft body (5) are respectively provided with a cavity (12) and a placement groove (13); the T-shaped piece (7) is slidably connected in the cavity (12); the top of the T-shaped piece (7) slides through the cavity (12) and extends into the placement groove (13) and is fixedly connected to the pull block (11); the pull block (11) is slidably connected in the placement groove (13); and the two ends of the return spring (10) are respectively fixedly connected to the T-shaped piece (7) and the inner wall of the cavity (12).

3. The split motor drive shaft according to claim 1, characterized in that: A slide plate (14) is slidably arranged in the pulling block (11), a positioning rod (15) is arranged on one side of the slide plate (14), a positioning opening (16) is opened in the third shaft body (5), the other end of the positioning rod (15) is slidably inserted in the positioning opening (16), a support spring (17) is arranged on the side of the slide plate (14) away from the positioning rod (15), the other end of the support spring (17) is arranged in the pulling block (11), a pulling plate (18) is arranged on the top of the slide plate (14), and a pulling piece (19) is arranged on the top of the pulling plate (18).

4. The split motor drive shaft according to claim 3, characterized in that: The interior and top of the pulling block (11) are respectively provided with a sliding cavity (20) and a sliding opening (21); the sliding cavity (20) and the sliding opening (21) are communicated with each other; the sliding plate (14) is slidably connected in the sliding cavity (20); the pulling plate (18) is slidably inserted in the sliding opening (21); and the two ends of the supporting spring (17) are respectively fixedly connected to the sliding plate (14) and the inner wall of the sliding cavity (20).

5. The split motor drive shaft according to claim 3, characterized in that: The outer surface of the pull piece (19) is provided with anti-skid particles, and the support spring (17) is made of stainless steel.

6. The split motor drive shaft according to claim 1, characterized in that: A positioning block (22) is fixedly mounted on one side of the first shaft body (1), a disassembly groove (23) is provided on one side of the second shaft body (2), the positioning block (22) is slidably inserted into the disassembly groove (23), a hand-tightening bolt (9) is inserted into the front side of the second shaft body (2), and the end of the hand-tightening bolt (9) extends into the positioning block (22).

7. The split motor drive shaft according to claim 6, characterized in that: The front sides of the positioning block (22) and the second shaft body (2) are both provided with threaded holes (24), and the ends of the hand-tightening bolts (9) are threadedly inserted into the threaded holes (24).

8. The split motor drive shaft according to claim 6, characterized in that: The outer surface of the hand-tightened bolt (9) is provided with anti-slip textures.

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