Micro-rotation proportion speed reduction main shaft

Abstract

The utility model relates to the technical field of speed reduction spindles, and discloses a micro-rotation proportion speed reduction spindle which comprises a stator, a primary rotor, a secondary rotor, a motor and a reed, the motor is fixedly installed on one side of the stator, the primary rotor is fixedly installed on an output shaft of the motor, and the reed is fixedly connected to the other end of the primary rotor. The transmission device has the advantages that the function is achieved through the elasticity of the reeds, the rigidity proportion between the primary part and the secondary part is adjusted through the boundary dimensions of the reeds, transmission proportion reduction is achieved, and the transmission device is free of lubrication and friction. The device has the advantages of being simple in structure, easy to manufacture, high in reliability, high in cleanliness, convenient to produce and suitable for being used in precise instruments, rigidity difference between the primary and the secondary is formed by changing the appearance shape of the reeds, the working performance of the device is slightly limited by materials and processes, and application and popularization are facilitated.

Description

Technical Field

[0001] The utility model relates to the technical field of speed reduction main shafts, in particular to a micro-rotation proportional speed reduction main shaft. Background Art

[0002] The function of the reducer shaft is to reduce speed, increase torque and change the direction of power output. The output power of the engine is certain. When the transmission speed is reduced by the main reducer, a higher output torque can be obtained, thereby obtaining a greater driving force. In precision optical systems, there is a common need to adjust the working parameters of the optical system by rotating key optical elements to expand its functions or performance indicators.

[0003] This type of micro-scale rotation is generally achieved by using a galvanometer motor. The galvanometer motor is relatively expensive and is easily affected by temperature and electrical noise, which limits its further application. As a widely used automation component, the stepper motor has the advantages of low cost, easy control, and good anti-interference performance, but its accuracy is difficult to further improve, and it is often difficult to use it directly in the fine-tuning scenario of optical components. Utility Model Content

[0004] The purpose of the utility model is to provide a micro-rotation proportional reduction spindle in order to solve the above problems, thereby solving the problems mentioned in the background technology.

[0005] In order to solve the above problems, the utility model provides a technical solution:

[0006] A micro-rotation proportional reduction spindle comprises a stator, a primary mover, a secondary mover, a motor and a reed, wherein the motor is fixedly mounted on one side of the stator, the primary mover is fixedly mounted on the output shaft of the motor, the other end of the primary mover is fixedly connected to the reed, the two reeds are cross-mounted, and the secondary mover is fixedly mounted on one end of the reed.

[0007] As a preferred solution of the utility model, a first bolt penetrates one side of the secondary mover, and the first bolt is movably connected to the spring.

[0008] As a preferred solution of the utility model, a second bolt passes through the spring leaf, the bottom of the second bolt is movably connected to one side of the stator, and a third bolt is movably connected to one side of the primary mover.

[0009] As a preferred solution of the utility model, the bottom of the stator and the motor are connected with a mounting base, and the top of the mounting base is symmetrically fixed with an electric track.

[0010] As a preferred solution of the utility model, track blocks are slidably connected inside the two electric tracks, and support plates are fixedly installed on the tops of the two track blocks.

[0011] As a preferred solution of the utility model, a clamping plate is fixedly installed on one side of the two support plates, one side of the two clamping plates has an arc shape and is similar to the arc shape of the outer end of the motor, and a placement groove is opened on one side of the support plate and located on the top of the mounting base.

[0012] The beneficial effects of the utility model are as follows: the device utilizes the elasticity of the reed itself to realize the function, utilizes the outer dimensions of the reed to adjust the stiffness ratio between the primary and secondary, and realizes the reduction of the transmission ratio. It is a non-lubricated and frictionless transmission device, has the characteristics of simple structure, easy manufacturing, high reliability, high cleanliness, convenient production and suitable for use inside precision instruments;

[0013] The device forms a stiffness difference between the primary and secondary by changing the outer shape of the reed, so that its working performance is less restricted by materials and processes, and is easy to promote and apply. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] For ease of explanation, the present invention is described in detail by the following specific implementations and drawings.

[0015] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0016] Figure 2 This is a schematic diagram of the overall split detail structure of the utility model;

[0017] Figure 3 This utility model Figure 2 Enlarged view of point A in the middle.

[0018] In the figure: 1. stator; 2. primary mover; 3. secondary mover; 4. motor; 5. spring; 6. first bolt; 7. second bolt; 8. third bolt; 9. mounting base; 10. electric track; 11. track block; 12. support plate; 13. clamping plate; 14. placement slot. DETAILED DESCRIPTION

[0019] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0020] Embodiment 1:

[0021] See also Figure 1 - Figure 2The utility model provides a technical solution: a micro-rotation proportional reduction spindle, including a stator 1, a primary mover 2, a secondary mover 3, a motor 4 and a reed 5. The motor 4 is fixedly installed on one side of the stator 1, the primary mover 2 is fixedly installed on the output shaft of the motor 4, and the other end of the primary mover 2 is fixedly connected with the reed 5. The two reeds 5 are cross-installed, and the secondary mover 3 is fixedly installed on one end of the reed 5.

[0022] While reducing the rotational displacement of the motor spindle, its motion error can also be reduced, so that the motor displacement accuracy can be improved. A pair of cross-mounted reeds 5 and a primary mover 2 structure, a secondary mover 3 structure, and a stator 1 structure fixed to the reeds 5, the reeds 5 have a specific shape so that they form a stiffness gradient distribution in the rotation direction, so that the structure of the present invention becomes a series spring structure. By utilizing the stiffness difference of the reeds 5 corresponding to the primary mover 2 and the secondary mover 3, the stator 1 structure and the motor 4 installed on the reeds 5 are fixed to the frame and remain stationary during operation. The end of the secondary mover 3 structure can be used to mount optical elements that need fine-tuning.

[0023] Working principle: the motor 4 rotates a certain angle, driving the primary mover 2 to rotate the same angle. The primary mover 2 twists the spring 5 to cause the spring 5 itself to twist and deform. One end of the spring 5 is forced to twist, and the other end is fixed on the stator 1, so that its structure has a torsional displacement gradient distribution along the axial direction of the motor 4, and at the connection with the secondary mover 3, the secondary mover 3 is pulled to deflect an angle, which is smaller than the angle input by the motor 4 to this embodiment and is proportional to the input angle.

[0024] Embodiment 2:

[0025] See also Figure 2 - Figure 3 A first bolt 6 penetrates one side of the secondary mover 3 , and the first bolt 6 is movably connected to the spring leaf 5 .

[0026] Furthermore, a second bolt 7 penetrates the interior of the spring leaf 5 , a bottom of the second bolt 7 is movably connected to one side of the stator 1 , and a third bolt 8 is movably connected to one side of the primary mover 2 .

[0027] Furthermore, the bottom of the stator 1 and the motor 4 are connected with a mounting base 9, and the top of the mounting base 9 is symmetrically fixed with an electric track 10, which is based on the principle of electromagnetic induction.

[0028] Furthermore, track blocks 11 are slidably connected inside the two electric tracks 10 . The electric tracks 10 and the track blocks 11 are matched in size, and support plates 12 are fixedly installed on the tops of the two track blocks 11 .

[0029] Furthermore, a clamping plate 13 is fixedly installed on one side of the two support plates 12, and one side of the two clamping plates 13 has an anti-slip pad to play an anti-slip role. One side of the two clamping plates 13 has an arc shape and is similar to the arc shape of the outer end of the motor 4. A placement groove 14 is opened on one side of the support plate 12 and located on the top of the mounting base 9.

[0030] Working principle: When the equipment needs to be installed, start the electric track 10, the electric track 10 drives the track block 11 to adjust, the track block 11 drives the support plate 12 to adjust, the two support plates 12 drive the clamping plates 13 to adjust, and the two clamping plates 13 are used to clamp and fix the motor 4, and then the stator 1 is placed inside the placement slot 14 to make the installation more secure.

[0031] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A micro-rotation proportional reduction spindle, characterized in that: The invention comprises a stator (1), a primary mover (2), a secondary mover (3), a motor (4) and a reed (5), wherein the motor (4) is fixedly mounted on one side of the stator (1), the primary mover (2) is fixedly mounted on the output shaft of the motor (4), the other end of the primary mover (2) is fixedly connected to the reed (5), the two reeds (5) are cross-mounted, and the secondary mover (3) is fixedly mounted on one end of the reed (5).

2. A micro-rotation proportional reduction spindle according to claim 1, characterized in that: A first bolt (6) passes through one side of the secondary mover (3), and the first bolt (6) is movably connected to the spring leaf (5).

3. A micro-rotation proportional reduction spindle according to claim 1, characterized in that: A second bolt (7) penetrates the interior of the spring leaf (5), the bottom of the second bolt (7) is movably connected to one side of the stator (1), and a third bolt (8) is movably connected to one side of the primary mover (2).

4. A micro-rotation proportional reduction spindle according to claim 1, characterized in that: The bottom of the stator (1) and the motor (4) are connected to a mounting base (9), and an electric track (10) is symmetrically fixedly mounted on the top of the mounting base (9).

5. A micro-rotation proportional reduction spindle according to claim 4, characterized in that: The two electric rails (10) are slidably connected with rail blocks (11) inside, and support plates (12) are fixedly installed on the tops of the two rail blocks (11).

6. A micro-rotation proportional reduction spindle according to claim 5, characterized in that: A clamping plate (13) is fixedly mounted on one side of the two support plates (12), one side of the two clamping plates (13) is arc-shaped and similar to the arc shape of the outer end of the motor (4), and a placement groove (14) is provided on one side of the support plate (12) and located at the top of the mounting base (9).

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