CN212272971U

CN212272971U - Double-star driver

Info

Publication number: CN212272971U
Application number: CN202021228194.8U
Authority: CN
Inventors: 刘茂德; 刘越月; 刘盛元
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-06-29
Filing date: 2020-06-29
Publication date: 2021-01-01
Anticipated expiration: 2030-06-29

Abstract

The utility model relates to the technical field of transmission equipment, and discloses a double-star driver, which comprises a central shaft, an eccentric shaft, a bearing, a rotating body, a steel ball fixing ring, a steel ball outer ring and a frame; the eccentric shaft is provided with an eccentric through hole, the central shaft is arranged in the eccentric through hole, the eccentric shaft is respectively sleeved with a bearing, each bearing is sleeved with a rotating body, a steel ball fixing ring is arranged between the rotating bodies, a pair of steel ball mounting holes are respectively formed in the steel ball fixing rings and are arranged oppositely, a steel ball is arranged in each steel ball mounting hole, a steel ball outer ring is arranged at the position of the steel ball, a steel ball track is arranged on each steel ball outer ring, the steel ball is arranged on the steel ball track, the base is provided with an annular mounting hole, and the steel ball outer ring is. The utility model discloses a set up eccentric structure, realize coaxial different fast, high-speed inertia step-down is fast to the realization bears bigger load, reaches energy-conserving purpose.

Description

Double-star driver

Technical Field

The utility model relates to a transmission equipment technical field indicates a driver especially.

Background

The transmission is an intermediate device for transmitting the power of the power device to the working mechanism, and for the traditional transmission, a gear transmission structure is generally adopted as the transmission.

For example, patent document CN204069800U discloses a transmission of a gear box of a harvester, which comprises a shaft, a secondary shaft, a tertiary shaft, a left half shaft and a right half shaft which are arranged in a shell, wherein a normally-closed driving gear and a reverse gear driving gear are arranged on the shaft; the second shaft is a gear shaft, a second-gear driving gear and a first-gear driving gear are arranged on the gear shaft, a third-gear driven gear is arranged on the second shaft on the left side of the second-gear driving gear, and a normally-closed driven gear is arranged on the second shaft between the second-gear driving gear and the first-gear driving gear; a three-gear driven gear, a two-gear driven gear, a first-gear driven gear and a reverse-gear driven gear are sequentially arranged on the three shafts from left to right; and a differential assembly is arranged between the left half shaft and the right half shaft.

The transmission ratio between the gears of the transmission device of the gearbox is fixed, the load capacity of the transmission shaft is fixed, when the running state of the load is suddenly changed from a high gear to a low gear, the torque of the transmission shaft is increased, and the power source and the transmission shaft are easily damaged. Meanwhile, the driver of the gear transmission structure cannot provide larger load, so that the application range of the gear transmission structure is greatly limited.

SUMMERY OF THE UTILITY MODEL

In order to solve the problem, the utility model provides a two star drivers, its main objective designs an eccentric structure's driver, through the eccentric shaft, the steel ball retainer plate, the rotator, steel ball outer lane and steel ball, when the centre axle rotates, fix the epaxial eccentric shaft in center, the steel ball retainer plate, steel ball and steel ball outer lane form the rotatory roll of certain contained angle, the centre axle rotates a week steel ball and rolls along steel ball outer lane inner wall, it is rotatory to promote the rotator simultaneously, accelerate the rotation of rotator, form coaxial different fast rotations, rotator high-speed motion has inertia, when the rotator is toward low-speed conversion, increase the bearing capacity of center axle.

Another object of the present invention is to provide a two-star driver, which is connected to the external flywheel of the rotator, because the mass of the flywheel is greater than the rotator, the inertia generated during high-speed movement is greater, and the load capacity of the central shaft is increased.

In order to achieve the above object, the utility model adopts the following technical scheme:

a double-star driver comprises a central shaft, an eccentric shaft, a bearing, a rotating body, a steel ball fixing ring, a steel ball outer ring and a machine base; the eccentric shaft is provided with an eccentric through hole, the central shaft is arranged in the eccentric through hole, two ends of the eccentric shaft are respectively sleeved with one bearing, each bearing is respectively sleeved with one rotating body, the steel ball fixing ring is arranged between the two rotating bodies, the outer wall of the rotating body is not contacted with the inner wall of the steel ball fixing ring, a pair of steel ball mounting holes are respectively arranged on the steel ball fixing ring at each rotating body, the steel ball mounting holes are oppositely arranged, the steel balls are arranged in the steel ball mounting holes, the steel ball outer ring is arranged at each steel ball position, the inner wall of the outer ring of the steel ball is provided with a circle of steel ball track, the steel ball is arranged on the steel ball track, and the center of the upper end of the machine base is provided with a through annular mounting hole, and the outer rings of the steel balls are respectively embedded in the two ends of the annular mounting hole.

The utility model discloses in combine the steel ball retainer plate, the steel ball outer lane, the steel ball through setting up the eccentric shaft, when the center pin rotates, rotator and steel ball outer lane form the rotatory roll of certain contained angle, when the axis rotates, the steel ball rolls along the outer wall of rotator, it is rotatory to promote the rotator, form coaxial different speed with this, because the high-speed rotation of rotator has inertia, make the load capacity of center pin increase, when the running state of the motion of center pin connection changes, the center pin can bear bigger load.

Furthermore, threaded holes are formed in two sides of the lower end of the base.

Furthermore, two ends of the annular mounting hole are provided with annular bosses, and the steel ball outer ring is mounted on the annular bosses.

Furthermore, the end face of each rotating body is provided with a connecting hole, a flywheel is installed on the connecting hole, the circumferential edge of the flywheel extends to the base, and the flywheel at the two ends and the base form a closed space.

The utility model discloses in through further external flywheel on the rotator, because the quality of flywheel is greater than the rotator, pass power for the center pin at high-speed rotatory speed reduction, the torsion that the center pin produced is bigger to this bearing capacity who improves the center pin.

Furthermore, a first key groove is formed in the upper circumference of the central shaft, a second key groove matched with the first key groove is formed in the inner wall of the eccentric shaft, and the central shaft is matched with the second key groove through a key installed in the first key groove.

Furthermore, an oil inlet hole is formed in the upper portion of the base, and an oil outlet hole is formed in the lower portion of the base.

The utility model discloses a set up the eccentric shaft, the rotator, the steel ball retainer plate, steel ball outer lane and steel ball, when the center pin rotates, rotator and steel ball outer lane form the rotatory roll of certain angle, when the center pin rotates, the steel ball rolls along steel ball outer lane inner wall, the steel ball promotes the rotation of rotator simultaneously, the high-speed operation of rotator produces inertia, thereby high-speed inertia slows down power of biography and produces powerful torsion for the center pin, thereby improve the load carrying capacity of center pin, the motion state that can the effective reply load changes. Meanwhile, in order to increase the load capacity of the central shaft, the rotating body is externally connected with the flywheel, and the mass of the flywheel is larger than that of the rotating body, so that the inertia generated in high-speed rotation is larger, and the load capacity of the central shaft is further increased.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

Fig. 2 is an exploded schematic view of the present invention.

Fig. 3 is a schematic sectional view of the present invention.

Fig. 4 is a schematic structural view of the stand.

Fig. 5 is a schematic structural diagram of the stand.

Fig. 6 is a schematic structural diagram of the flywheel and the rotating body.

Fig. 7 is a schematic view showing an assembled structure of the central shaft and the eccentric shaft.

The reference numbers illustrate: 1. a central shaft; 2. an eccentric shaft; 3. a bearing; 4. a rotating body; 5. a steel ball fixing ring; 6. a steel ball; 7. an outer ring of a steel ball; 8. a machine base; 9. an eccentric through hole; 10. a steel ball mounting hole; 11. a steel ball track; 12. an annular mounting hole; 13. a threaded hole; 14. an annular boss; 15. connecting holes; 16. a flywheel; 17. a first keyway; 18. a second keyway; 19. an oil inlet hole; 20. an oil outlet.

Detailed Description

Referring to fig. 1-3, a double star driver for realizing the present invention includes a central shaft 1, an eccentric shaft 2, a bearing 3, a rotator 4, a steel ball retainer ring 5, a steel ball 6, a steel ball outer ring 7 and a base 8; the eccentric shaft 2 is provided with an eccentric through hole 9, the central shaft 1 is arranged in the eccentric through hole 9, two bearings 3 are respectively sleeved outside two ends of the eccentric shaft 2, each bearing 3 is respectively sleeved with one rotating body 4, the steel ball fixing ring 5 is arranged between the two rotating bodies 4, the outer wall of each rotating body 4 is not contacted with the inner wall of the steel ball fixing ring 5, a pair of steel ball mounting holes 10 are respectively arranged at the positions of the rotating bodies 4 on the steel ball fixing ring 5, the steel ball mounting holes 10 are oppositely arranged, the steel ball 6 is arranged in each steel ball mounting hole 10, the steel ball outer ring 7 is arranged at the position of each steel ball 6, the inner wall of the steel ball outer ring 7 is provided with a circle of steel ball track 11, the steel ball 6 is arranged on the steel ball track 11, and the center of the upper end of the machine base 8 is provided with a through annular mounting hole, the steel ball outer rings 7 are respectively embedded on the two ends of the annular mounting hole 12

Because the traditional driver adopts a gear structure for transmission, the power source is very easy to damage when the larger load cannot be driven or the running state of the load is suddenly changed due to the fixed transmission ratio. Therefore, the utility model discloses in propose eccentric structure's actuator, its specific theory of use as follows: one end of the central shaft 1 is connected with a power source, when the central shaft 1 rotates, the rotating body 4 and the steel ball outer ring 7 form a certain included angle to rotate, the central shaft 1 rotates for a circle, the steel ball 6 rolls along the steel ball track 11 of the steel ball outer ring 7, and meanwhile, the rotating body 4 is pushed, so that coaxial different speeds are formed; because the two ends of the rotating eccentric shaft 2 are respectively provided with the rotating bodies 4, the steel ball fixing ring 5 is always tightly combined with the steel ball 6 and the steel ball track 11 of the steel ball outer ring 7, so that the steel balls 6 at the two ends rotate at high speed on the steel ball outer ring 7, meanwhile, the rotating bodies 4 are pushed to rotate, the rotating bodies 4 generate inertia in high-speed operation, and the high-speed inertia is used for reducing the speed and transmitting the force to the central shaft 1, thereby the central shaft 1 generates strong torsion and achieving the purpose of energy conservation. The steel ball is always positioned in the steel ball track 11 in synchronous in-phase rotation, and the phenomenon of slipping does not exist.

As shown in fig. 4, threaded holes 13 are opened at both sides of the lower end of the base 8. The machine base 8 is convenient to install and fix through bolts by arranging the threaded holes 13 on the machine base 8.

And two ends of the annular mounting hole 12 are provided with annular bosses 14, and the steel ball outer ring 7 is mounted on the annular bosses 14. The annular boss 14 is used for mounting and limiting the steel ball outer ring 7 in the mounting process, so that the operation process is stable and deflection is avoided.

As shown in fig. 6, a connection hole 15 is provided on an end surface of each of the rotating bodies 4, a flywheel 16 is mounted on the connection hole 15, a circumferential edge of the flywheel 16 extends to the base 8, and the flywheel 16 at both ends and the base 8 form a closed space.

In order to further improve the load capacity of the central shaft 1, the flywheel 16 is connected with the rotating body 4, the mass of the flywheel 16 is larger than that of the rotating body 4, further, the inertia generated by the flywheel in high-speed rotation is larger, and when the high-speed inertia speed reduction force is transmitted to the central shaft 1, the central shaft 1 can generate larger torsion.

As shown in fig. 7, a first key groove 17 is formed on the upper circumference of the central shaft 1, a second key groove 18 matched with the first key groove 17 is formed on the inner wall of the eccentric shaft 2, and the central shaft 1 is matched with the second key groove 18 by installing a key in the first key groove 17. The utility model provides a specifically give center pin 1 and eccentric shaft 2's connected mode, both realize closely combining through the key-type connection.

As shown in fig. 4 and 5, an oil inlet 19 is formed in an upper portion of the housing 8, and an oil outlet 20 is formed in a lower portion of the casing 7. The oil inlet hole 19 is connected with an oil inlet pipe of an external oil pump, the oil outlet hole 20 is connected with an oil return pipe of the external oil pump, when the external oil pump delivers oil, the oil can lubricate the inner wall of the steel ball outer ring 7 under the rolling action of the steel ball 6, and the oil flows downwards to the position of the oil outlet hole 20 under the action of gravity and is recovered through the oil return pipe of the external oil pump, so that the oil is recycled.

The above embodiments are only for describing the preferred embodiments of the present invention, and are not intended to limit the scope of the present invention, and various modifications and improvements made by the technical solution of the present invention by those skilled in the art are all within the scope of the present invention as defined by the claims.

Claims

1. A dual star drive, comprising: the double-star driver comprises a central shaft, an eccentric shaft, a bearing, a rotating body, a steel ball fixing ring, a steel ball outer ring and a machine base;

the eccentric shaft is provided with an eccentric through hole, the central shaft is arranged in the eccentric through hole, two ends of the eccentric shaft are respectively sleeved with one bearing, each bearing is respectively sleeved with one rotating body, the steel ball fixing ring is arranged between the two rotating bodies, the outer wall of the rotating body is not contacted with the inner wall of the steel ball fixing ring, a pair of steel ball mounting holes are respectively arranged on the steel ball fixing ring at each rotating body, the steel ball mounting holes are oppositely arranged, the steel balls are arranged in the steel ball mounting holes, the steel ball outer ring is arranged at each steel ball position, the inner wall of the outer ring of the steel ball is provided with a circle of steel ball track, the steel ball is arranged on the steel ball track, and the center of the upper end of the machine base is provided with a through annular mounting hole, and the outer rings of the steel balls are respectively embedded in the two ends of the annular mounting hole.

2. The dual star transmission of claim 1 wherein: threaded holes are formed in two sides of the lower end of the machine base.

3. The dual star transmission of claim 2 wherein: and annular bosses are arranged at two ends of the annular mounting hole, and the steel ball outer ring is mounted on the annular bosses.

4. The dual star transmission of claim 3 wherein: each be equipped with the connecting hole on the terminal surface of rotator, install the flywheel on the connecting hole, the circumferential edge reason of flywheel extends to the frame, both ends the flywheel with the frame forms the enclosure space.

5. The dual star transmission of claim 1 wherein: the eccentric shaft is characterized in that a first key groove is formed in the upper circumference of the central shaft, a second key groove matched with the first key groove is formed in the inner wall of the eccentric shaft, and the central shaft is matched with the second key groove through a key installed in the first key groove.

6. The dual star transmission of claim 1 wherein: the oil inlet is arranged on the upper portion of the base, and the oil outlet is arranged on the lower portion of the base.