Two-wire synchronous constant force motor

Abstract

The utility model discloses a two-line synchronous constant force motor, which comprises a shell, a driving piece, a gear set and an output gear, the driving piece drives the gear set to operate, the driving piece comprises a fixed shaft, the fixed shaft is sleeved with a first gear, the first gear is meshed with a second gear, a brake pad is movably sleeved below the second gear, and the brake pad is meshed with the output gear. An arc-shaped brake block is arranged at one end of the brake pad, the fixing shaft is sleeved with a ratchet which is located on the lower side of the first gear and integrally connected with the first gear, and the gear set is connected with an output gear. The utility model has the advantage of constant force.

Description

Technical Field

[0001] The utility model relates to the field of motors, in particular to a two-wire synchronous constant-force motor. Background Art

[0002] The traditional synchronous motor consists of a stator and a rotor. Specifically, the stator includes a stator core and a coil assembly inserted on the stator core, and the stator core is provided with a mounting hole; the rotor is inserted into the mounting hole, and the rotor includes a rotor core and a permanent magnetic force arranged on the rotor core. However, the current motor does not have a synchronous constant force to maintain directional rotation, so it needs to be improved. Summary of the invention

[0003] The utility model aims to provide a two-wire synchronous constant force motor to solve the problems raised in the above-mentioned background technology, and the utility model has the advantage of directional rotation.

[0004] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a two-wire synchronous constant force motor, comprising a shell, a driving member, a gear set and an output gear, the driving member drives the gear set to operate, the driving member comprises a fixed shaft, the fixed shaft is sleeved with a first gear, the first gear is meshed with a second gear, a brake pad is movably sleeved below the second gear, an arc-shaped brake block is provided at one end of the brake pad, the fixed shaft is sleeved with a ratchet that is located at the lower side of the first gear and is integrally connected to the first gear, and the gear set is connected to the output gear.

[0005] By adopting the above technical solution, the driving member can drive the gear set to rotate and then drive the output gear to rotate, thereby realizing the transmission of the entire motor. In this process, the rotation of the first gear will cause the second gear to rotate, and the rotation of the second gear will drive the brake pad to rotate and then drive the brake block to rotate. At the same time, the rotation of the first gear will drive the ratchet to rotate around its own axis. In this process, the second gear drives the brake block to rotate away from the ratchet so as not to interfere with the rotation of the ratchet. When the first gear rotates in the opposite direction, the second gear will drive the brake block to rotate in the direction of the ratchet, thereby squeezing one side of the ratchet and limiting the rotation of the ratchet, thereby achieving the advantage of constant direction rotation. It is worth noting that the brake pad and the second gear are in a card-type connection, and the two can rotate relative to each other.

[0006] As a further solution of the utility model: the driving member includes a first magnet connected to the ratchet, a coil is arranged on the outside of the first magnet, a first rotating shaft is connected above the ratchet, the first rotating shaft is connected to the second magnet, the fixed shaft is sleeved with a fixed sleeve located above the second magnet, a third gear is integrally connected above the fixed sleeve, the fixed sleeve is clamped with a magnetic conductive sheet sleeved outside the second magnet, and the third gear is meshed with a fourth gear.

[0007] By adopting the above technical solution, the first magnet does not contact the coil. Under the action of the coil, the first magnet will rotate around its own axis and then drive the ratchet to rotate. After the ratchet rotates, it will drive the connecting shaft to rotate and then drive the second magnet to rotate. The rotation of the second magnet will drive the rotation of the magnetic plate and then drive the rotation of the fixed sleeve. It is worth noting that the second magnet does not contact the magnetic plate, and the fixed sleeve is not fixedly connected to the fixed shaft. The rotation of the fixed sleeve will drive the rotation of the third gear and then drive the rotation of the fourth gear. The operation of the magnet in the motor generates magnetic force to drive the second magnet above. The operation and rotation of the magnetic plate generates stable magnetic force. The output torque of the third gear is integrally connected to the top of the fixed sleeve. When the gear runs to the point where the output force is less than the resistance, the above gear set stops running; but the motor magnet is still running normally. When the output force is less than the resistance, the second magnet plays the role of a separator and magnetic force to maintain balance.

[0008] As a further solution of the utility model: the fourth gear is meshed with the fifth gear, the fifth gear is meshed with the sixth gear, the middle part of the sixth gear is fixedly connected with the second rotating shaft, and the second rotating shaft is fixedly connected to the output gear.

[0009] By adopting the above technical solution, the fourth gear drives the fifth gear to rotate and then drives the second rotating shaft to rotate. The rotation of the second rotating shaft can drive the rotation of the output gear.

[0010] As a further solution of the utility model: the shell is provided with a reset member located on one side of the output gear, the reset member includes a reset gear meshing with the output gear, the middle part of the reset gear is fixedly connected to the interior of the shell, the reset gear is arranged in a fan shape and an adjusting block is integrally connected to one side, a stop valve is arranged below the adjusting block, an adjusting rod located below the adjusting block is arranged in the stop valve, and the adjusting rod is sleeved with a reset spring located in the stop valve.

[0011] By adopting the above technical solution, after the output gear rotates, it will drive the reset gear to rotate and then drive the adjustment block to move. After the adjustment block moves toward the direction of the stop valve, it will squeeze the adjustment rod and then squeeze the reset spring. When the output gear is not subjected to force, under the action of the reset spring, the adjustment rod moves toward the direction of the adjustment block and then drives the reset gear to rotate. The rotation of the reset gear will drive the output gear to rotate, thereby playing a resetting role. The power for the operation of the gear set is the equal magnetic force between the second magnet and the magnet in the motor.

[0012] Compared with the prior art, the beneficial effects of the utility model are:

[0013] The driving member can drive the gear set to rotate and then drive the output gear to rotate, thereby realizing the transmission of the entire motor. In this process, the rotation of the first gear will cause the second gear to rotate, and the rotation of the second gear will drive the brake pad to rotate and then drive the brake block to rotate. At the same time, the rotation of the first gear will drive the ratchet to rotate around its own axis. In this process, the second gear drives the brake block to rotate away from the ratchet so as not to interfere with the rotation of the ratchet. When the first gear rotates in the opposite direction, the second gear will drive the brake block to rotate in the direction of the ratchet, thereby squeezing one side of the ratchet and limiting the rotation of the ratchet, thereby achieving the advantage of constant direction rotation. It is worth noting that the brake pad and the second gear are in a card-type connection, and the two can rotate relative to each other. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a structural schematic diagram of an embodiment;

[0015] Figure 2 This is a schematic diagram of the structure of the embodiment after a portion of the housing is removed;

[0016] Figure 3 is a top view of an embodiment;

[0017] Figure 4 for Figure 3 Cross-sectional view in the EE direction;

[0018] Figure 5 This is a schematic diagram of the structure of the embodiment after removing the housing;

[0019] Figure 6 Schematic diagram of the internal structure of the housing in the embodiment;

[0020] Figure 7 is a structural schematic diagram of the connection relationship between the third gear, the magnetic conductive sheet and the fourth gear in the embodiment;

[0021] Figure 8 for Figure 7 A schematic diagram of the structure from another perspective;

[0022] Fig. 9 for Figure 7 Schematic diagram of the structure after removing the magnetic conductive sheet;

[0023] Fig.10 for Fig. 9 A schematic diagram of the structure of the side surface;

[0024] Fig.11 for Fig.10 A schematic diagram of the structure after removing the first rotating shaft and the second magnetic steel;

[0025] Fig.12 Schematic diagram of the structure of the connection relationship between the fixed shaft, brake pad, brake block and ratchet in the embodiment.

[0026] In the figure: 1. housing; 2. fixed shaft; 3. first gear; 4. second gear; 5. brake pad; 6. brake block; 7. ratchet; 8. output gear; 9. first magnet; 10. coil; 11. first rotating shaft; 12. second magnet; 13. fixed sleeve; 14. third gear; 15. magnetic sheet; 16. fourth gear; 17. fifth gear; 18. second rotating shaft; 19. reset gear; 20. adjusting block; 21. stop valve; 22. adjusting rod; 23. reset spring; 24. sixth gear. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0028] In the embodiment of the utility model, a two-wire synchronous constant force motor, such as Figure 1-Figure 12 As shown, it includes a shell 1, a driving member, a gear set and an output gear 8. The driving member drives the gear set to operate. The driving member includes a fixed shaft 2, the fixed shaft 2 is sleeved with a first gear 3, the first gear 3 is meshed with a second gear 4, a brake pad 5 is movably sleeved below the second gear 4, an arc-shaped brake block 6 is provided at one end of the brake pad 5, the fixed shaft 2 is sleeved with a ratchet 7 that is located at the lower side of the first gear 3 and is integrally connected to the first gear 3, and the gear set is connected to the output gear 8.

[0029] The driving member includes a first magnetic steel 9 connected to the ratchet 7, a coil 10 is arranged on the outer side of the first magnetic steel 9, a first rotating shaft 11 is connected above the ratchet 7, the first rotating shaft 11 is connected to the second magnetic steel 12, the fixed shaft 2 is sleeved with a fixed sleeve 13 located above the second magnetic steel 12, a third gear 14 is integrally connected to the top of the fixed sleeve 13, the fixed sleeve 13 is clamped with a magnetic conductive sheet 15 sleeved outside the second magnetic steel 12, and the third gear 14 is meshed with a fourth gear 16.

[0030] The fourth gear 16 is meshed with a fifth gear 17 , and the fifth gear 17 is meshed with a sixth gear 24 . A second rotating shaft 18 is fixedly connected to the middle of the sixth gear 24 , and the second rotating shaft 18 is fixedly connected to the output gear 8 .

[0031] The housing 1 is provided with a reset member located on one side of the output gear 8, and the reset member includes a reset gear 19 meshing with the output gear 8. The middle part of the reset gear 19 is fixedly connected to the interior of the housing 1. The reset gear 19 is arranged in a fan shape and an adjusting block 20 is integrally connected to one side. A stop valve 21 is arranged below the adjusting block 20. An adjusting rod 22 located below the adjusting block is arranged in the stop valve 21, and the adjusting rod 22 is sleeved with a reset spring 23 located in the stop valve 21.

[0032] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A two-wire synchronous constant force motor, comprising a housing (1), a driving member, a gear set and an output gear (8), wherein the driving member drives the gear set to operate, and is characterized in that: The driving member comprises a fixed shaft (2), the fixed shaft (2) is sleeved with a first gear (3), the first gear (3) is meshed with a second gear (4), a brake plate (5) is movably sleeved below the second gear (4), an arc-shaped brake block (6) is provided at one end of the brake plate (5), the fixed shaft (2) is sleeved with a ratchet (7) which is located at the lower side of the first gear (3) and is integrally connected to the first gear (3), and the gear set is connected with an output gear (8).

2. The two-wire synchronous constant force motor according to claim 1, characterized in that: The driving member comprises a first magnetic steel (9) connected to a ratchet (7), a coil (10) being arranged on the outer side of the first magnetic steel (9), a first rotating shaft (11) being connected above the ratchet (7), the first rotating shaft (11) being connected to a second magnetic steel (12), the fixed shaft (2) being sleeved with a fixed sleeve (13) located above the second magnetic steel (12), a third gear (14) being integrally connected above the fixed sleeve (13), the fixed sleeve (13) being clamped with a magnetic conductive sheet (15) sleeved outside the second magnetic steel (12), and the third gear (14) being meshed with a fourth gear (16).

3. The two-wire synchronous constant force motor according to claim 2, characterized in that: The fourth gear (16) is meshed with a fifth gear (17), the fifth gear (17) is meshed with a sixth gear (24), a middle portion of the sixth gear (24) is fixedly connected to a second rotating shaft (18), and the second rotating shaft (18) is fixedly connected to the output gear (8).

4. The two-wire synchronous constant force motor according to claim 1, characterized in that: The housing (1) is provided with a reset member located on one side of the output gear (8), the reset member comprising a reset gear (19) meshing with the output gear (8), the middle portion of the reset gear (19) being fixedly connected to the interior of the housing (1), the reset gear (19) being arranged in a fan shape and having an adjustment block (20) integrally connected to one side thereof, a stop valve (21) being arranged below the adjustment block (20), an adjustment rod (22) being arranged inside the stop valve (21) and being located below the adjustment block (20), the adjustment rod (22) being sleeved with a reset spring (23) located inside the stop valve (21).

Images