Motor driving shaft and motor

Abstract

The utility model discloses a motor driving shaft which comprises a shaft body and a mounting structure, a first slot is formed in the middle of the shaft body, two first movable holes are formed in one side of the shaft body, and ejector blocks are movably arranged in the first movable holes; the mounting structure comprises a first insertion piece and a second insertion piece, the first insertion piece comprises a first insertion rod, a second insertion groove is formed in the middle of the first insertion rod, a second movable hole is formed in one side of the first insertion rod, a fixed abutting block is arranged in the second insertion groove, an ejector rod penetrates through the second movable hole, a movable abutting block is arranged at the bottom end of the second movable hole, and a spring sleeves the outer side of the movable abutting block; a first groove is formed in the top face of the fixed abutting block, and a second groove is formed in the bottom face of the movable abutting block. The second inserting piece comprises a locking block, a second inserting rod and extrusion blocks, the extrusion blocks are arranged on the inserting rod at intervals, and the locking block is arranged at one end of the second inserting rod. According to the motor driving shaft and the motor, the two gears can be conveniently installed on the shaft body, installation is stable, and loosening is not prone to occurring.

Description

Technical Field

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

[0002] The motor drive shaft can be used to install gears and other parts. In order to facilitate the disassembly and assembly of the installed gears, the existing technology provides an axial installation groove at the end of the drive shaft, and a radially movable block is provided on one side of the drive shaft. One side of the block extends into the installation groove. A push rod that can slide along the installation groove is also provided in the installation groove. A connecting rod is provided between the push rod and the block. The push rod and the block are hinged at both ends of the connecting rod. By axially moving the push rod, the connecting rod is driven to realize radial movement of the block, which can interfere with the installed gear. After fixing the position of the push rod, the fixed gear can be pressed against it.

[0003] The above structure is only convenient for installing a single gear and is not suitable for installing two gears. In addition, the hinge of the connecting rod is subjected to large shear force for a long time and is easily damaged and loose, which causes the gear to loosen easily. Utility Model Content

[0004] In view of the above problems, the utility model provides a motor drive shaft and a motor, and two gears can be conveniently installed on the shaft body, and the installation is stable and not easy to loosen.

[0005] The technical solution of the utility model is as follows:

[0006] A motor drive shaft comprises a shaft body and a mounting structure, wherein a first slot is provided in the middle of the shaft body, two first movable holes communicating with the plug slots are provided on one side of the shaft body, and a top block is movably provided in the first movable hole;

[0007] The mounting structure includes a first plug-in and a second plug-in, the first plug-in includes a first plug rod, a second slot is opened in the middle, the first plug rod is arranged in the first slot, one side of the first plug rod is provided with two second movable holes corresponding to the first movable holes, the second movable hole is communicated with the second slot, a fixed stop is provided on the side of the second slot away from the second movable hole, a push rod is passed through the second movable hole, the bottom end of the push rod extends into the second slot, a movable stop is provided at the bottom end, and a spring is sleeved on the outer side of the push rod between the movable stop and the inner wall of the second slot; the top surface of the fixed stop is provided with a first groove, and the bottom surface of the movable stop is provided with a second groove, the top surface of the fixed stop is abutted against the bottom surface of the movable stop, and the first groove and the second groove can be combined to form an extrusion gap;

[0008] The second plug-in includes a locking block, a second insertion rod and an extrusion block. The extrusion blocks include two, which are arranged on the insertion rod at intervals. When the second insertion rod is inserted into the second slot, the two extrusion blocks can just squeeze the two movable blocks respectively. The locking block is arranged at one end of the second insertion rod and can be locked and connected with the notch of the second slot.

[0009] In a further technical solution, the top block includes a movable block and a friction plate, a screw hole is provided on a side of the movable block away from the first slot, and a screw connected to the screw hole is provided on one side of the friction plate.

[0010] In a further technical solution, the size of the friction plate is larger than the size of the movable hole, and a groove for accommodating the friction plate is provided on one side edge of the movable hole corresponding to the friction plate.

[0011] In a further technical solution, a limiting block is provided on the bottom edge of the movable block, and a limiting groove is provided on one side edge of the friction plate corresponding to the movable hole.

[0012] In a further technical solution, the locking block is threadedly connected to the second slot.

[0013] In a further technical solution, the extrusion block includes an integrally formed extrusion part and a support part, the extrusion part is semi-conical in shape, and the side with a larger radius is close to the locking block, the support part is semi-cylindrical in shape, and is arranged on the side of the extrusion part close to the locking block, and the radius of the support part is the same as the side with a larger radius of the extrusion part; the second groove includes an insertion section and an extrusion section, the insertion section matches one side of the second insertion rod, and the extrusion section matches the arc surface of the extrusion part; the second insertion rod is rotatably connected to the locking block.

[0014] The beneficial effects of the utility model are:

[0015] 1. When installing the gear of the motor using this shaft body, the second rod can be inserted into the second slot. The extrusion block on the second rod can lift the movable block, thereby lifting the top block in the first movable hole on the shaft body until it is pressed against the inside of the gear and the gear is fixed. After fixation, the position of the second rod can be fixed by the locking block; the two extrusion blocks can eventually lift the two top blocks respectively to achieve the fixation of up to two gears, and provide radial force to the top block by extrusion. After the second rod is fixed, the extrusion block is not easy to loosen and is fixed stably. After the second rod is pulled out, the movable block can be reset under the action of the spring, and the movable block can be reset after losing the extrusion;

[0016] 2. The friction plate can be replaced after long-term wear, and different friction plates can be replaced according to different gears;

[0017] 3. The friction plate limits the side of the movable block away from the first slot, and the limit block limits the side of the movable block close to the first slot, so that the movable block is not easy to fall out of the movable hole;

[0018] 4. The locking block can be continuously rotated to push the second insertion rod into the second slot. The extrusion part of the extrusion block gradually pushes the movable block upward when squeezing the extrusion section, and gradually pushes the movable block out of the movable hole. The supporting part stably supports the movable block when entering the insertion section. In addition, the locking block threadedly connected to the second slot can be locked to any position within the thread range, and the movable block can be pushed out to different positions. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic structural diagram of the shaft body according to an embodiment of the present utility model;

[0020] Figure 2 is a cross-sectional schematic diagram of the first plug-in of an embodiment of the present utility model;

[0021] Figure 3 is a cross-sectional schematic diagram of the second plug-in of an embodiment of the present utility model;

[0022] Figure 4 This is a schematic structural diagram of the movable stop block according to an embodiment of the present utility model;

[0023] Figure 5 It is a structural schematic diagram of a motor described in an embodiment of the present utility model.

[0024] Description of reference numerals:

[0025] 10. Shaft; 11. First slot; 12. Movable block; 13. Friction plate; 14. Screw; 15. Embedded groove; 16. Limit block; 17. Limit groove; 20. First insertion rod; 21. Second slot; 22. Fixed block; 23. Push rod; 24. Movable block; 241. Extrusion section; 242. Insertion section; 25. Spring; 31. Locking block; 32. Second insertion rod; 33. Support portion; 34. Extrusion portion; 40. Main body. DETAILED DESCRIPTION

[0026] The embodiments of the present invention will be further described below with reference to the accompanying drawings.

[0027] Example:

[0028] like Figure 1-Figure 4As shown, a motor drive shaft includes a shaft body 10 and a mounting structure, a first slot 11 is axially opened in the middle of the end of the shaft body 10, and one side of the shaft body 10 is provided with two first movable holes connected to the plug-in slots, the two first movable holes are arranged at intervals along the axial direction, and a top block is movably provided in the first movable hole; the mounting structure includes a first plug-in and a second plug-in, the first plug-in includes a first plug rod 20, a second slot 21 is opened in the middle, the first plug rod 20 is arranged in the first slot 11, one side of the first plug rod 20 is provided with two second movable holes corresponding to the first movable holes, the second movable hole is connected to the second slot 21, a fixed block 22 is provided on the side of the second slot 21 away from the second movable hole, a top rod 23 is passed through the second movable hole, the bottom end of the top rod 23 extends into the second slot 21, and a There is a movable block 24, and a spring 25 is provided on the outside of the top rod 23 between the movable block 24 and the inner wall of the second slot 21; the top surface of the fixed block 22 is provided with a first groove, and the bottom surface of the movable block 24 is provided with a second groove. The top surface of the fixed block 22 and the bottom surface of the movable block 24 are against each other, and the first groove and the second groove can be combined to form an extrusion gap; the second plug-in includes a locking block 31, a second insertion rod 32 and an extrusion block. The extrusion block includes two, which are arranged on the insertion rod at intervals. When the second insertion rod 32 is plugged into the second slot 21, the two extrusion blocks can just squeeze the two movable blocks 24 respectively. The locking block 31 is provided at one end of the second insertion rod 32. The outer side of the locking block 31 can be provided with an external thread, and the notch of the second slot 21 can be provided with an internal thread to realize the threaded connection between the locking block 31 and the second slot 21.

[0029] The working principle of the above technical solution is as follows:

[0030] When installing the gear of the motor using the shaft body 10, the second insertion rod 32 can be inserted into the second slot 21, and the extrusion block on the second insertion rod 32 can pass through the extrusion gap to lift the movable block 24, thereby lifting the top block in the first movable hole on the shaft body 10 until it is pressed against the inside of the gear to fix the gear. After fixation, the position of the second insertion rod 32 can be fixed by the locking block 31; the two extrusion blocks can eventually lift the two top blocks respectively to achieve the fixation of at most two gears, and provide radial force to the top block by extrusion. After the second insertion rod 32 is fixed, the extrusion block is not easy to loosen and is stably fixed. After the second insertion rod 32 is pulled out, the movable block 24 can be reset under the action of the spring 25, and the movable block 12 can be reset after losing the extrusion.

[0031] In another embodiment, Figure 1 As shown, the top block includes a movable block 12 and a friction plate 13 . A screw hole is provided on one side of the movable block 12 away from the first slot 11 , and a screw rod 14 connected to the screw hole is provided on one side of the friction plate 13 .

[0032] The friction plate 13 can be pressed against the inside of the gear and can be replaced after long-term wear. Different friction plates 13 can also be replaced according to different gears.

[0033] In another embodiment, Figure 1 As shown, the size of the friction plate 13 is larger than the size of the movable hole, and a groove 15 that can accommodate the friction plate 13 is provided on one side edge of the movable hole corresponding to the friction plate 13; a limiting block 16 is provided on the bottom edge of the movable block 12, and a limiting groove 17 is provided on one side edge of the movable hole corresponding to the friction plate 13.

[0034] The friction plate 13 limits the side of the movable block 12 away from the first slot 11, and the limiting block 16 limits the side of the movable block 12 close to the first slot 11, so that the movable block 12 is not easy to fall out of the movable hole.

[0035] In another embodiment, Figure 2-4 As shown, the extrusion block includes an integrally formed extrusion portion 34 and a support portion 33. The extrusion portion 34 is in the shape of a semi-cone, and the side with a larger radius is close to the locking block 31. The support portion 33 is in the shape of a semi-cylinder and is arranged on the side of the extrusion portion 34 close to the locking block 31. The radius of the support portion 33 is the same as the side with a larger radius of the extrusion portion 34; the second groove includes an insertion section 242 and an extrusion section 241, the insertion section 242 matches one side of the second insertion rod 32, and the extrusion section 241 matches the arc surface of the extrusion portion 34; the second insertion rod 32 is rotatably connected to the locking block 31.

[0036] The locking block 31 can be continuously rotated to push the second insertion rod 32 into the second slot 21. The extrusion portion 34 of the extrusion block gradually pushes the movable block 24 upward when squeezing the extrusion section 241, and gradually pushes the movable block 12 out of the movable hole. The support portion 33 stably supports the movable block 24 when entering the insertion section 242. In addition, the locking block 31 threadedly connected to the second slot 21 can be locked to any position within the thread range, and the movable block 12 can be pushed out to different positions.

[0037] In addition, if Figure 5 As shown, the present invention further provides a motor including a main body 40, which adopts the above-mentioned motor drive shaft to facilitate the disassembly and assembly of at most two gears and is not easy to loosen.

[0038] The above-described embodiments merely represent specific implementations of the present invention. While the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the present invention. It should be noted that a person skilled in the art would be able to make numerous variations and improvements without departing from the scope of the present invention, all of which fall within the scope of protection of the present invention.

Claims

1. A motor drive shaft, characterized in that: It includes a shaft body and a mounting structure, wherein a first slot is provided in the middle of the shaft body, and two first movable holes communicating with the inserting slots are provided on one side of the shaft body, and a top block is movably provided in the first movable hole; The mounting structure includes a first plug-in and a second plug-in, the first plug-in includes a first plug rod, a second slot is opened in the middle, the first plug rod is arranged in the first slot, one side of the first plug rod is provided with two second movable holes corresponding to the first movable holes, the second movable hole is communicated with the second slot, a fixed stop is provided on the side of the second slot away from the second movable hole, a push rod is passed through the second movable hole, the bottom end of the push rod extends into the second slot, a movable stop is provided at the bottom end, and a spring is sleeved on the outer side of the push rod between the movable stop and the inner wall of the second slot; the top surface of the fixed stop is provided with a first groove, and the bottom surface of the movable stop is provided with a second groove, the top surface of the fixed stop is abutted against the bottom surface of the movable stop, and the first groove and the second groove can be combined to form an extrusion gap; The second plug-in includes a locking block, a second insertion rod and an extrusion block. The extrusion blocks include two, which are arranged on the insertion rod at intervals. When the second insertion rod is inserted into the second slot, the two extrusion blocks can just squeeze the two movable blocks respectively. The locking block is arranged at one end of the second insertion rod and can be locked and connected with the notch of the second slot.

2. The motor drive shaft according to claim 1, characterized in that: The top block includes a movable block and a friction plate. A screw hole is provided on a side of the movable block away from the first slot, and a screw rod connected to the screw hole is provided on one side of the friction plate.

3. The motor drive shaft according to claim 2, characterized in that: The size of the friction plate is larger than that of the movable hole, and a groove for accommodating the friction plate is provided on one side edge of the movable hole corresponding to the friction plate.

4. The motor drive shaft according to claim 3, characterized in that: A limiting block is provided on the bottom edge of the movable block, and a limiting groove is provided on one side edge of the movable hole corresponding to the friction plate.

5. The motor drive shaft according to claim 1, characterized in that: The locking block is threadedly connected to the second slot.

6. The motor drive shaft according to claim 5, characterized in that: The extrusion block includes an integrally formed extrusion portion and a support portion, the extrusion portion is semi-conical in shape, and the side with a larger radius is close to the locking block, the support portion is semi-cylindrical in shape, and is arranged on the side of the extrusion portion close to the locking block, and the radius of the support portion is the same as the side with a larger radius of the extrusion portion; the second groove includes an insertion section and an extrusion section, the insertion section matches one side of the second insertion rod, and the extrusion section matches the arc surface of the extrusion portion; the second insertion rod is rotatably connected to the locking block.

7. A motor, characterized in that: It comprises a main body and a motor drive shaft as described in any one of claims 1-6.

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