CN213655644U

CN213655644U - Take buffer function's gear external member

Info

Publication number: CN213655644U
Application number: CN202022385472.7U
Authority: CN
Inventors: 卿兆波; 杨惠忠
Original assignee: Hangzhou Zhongzhigao Intelligent Technology Co ltd
Current assignee: Hangzhou Zhongzhigao Intelligent Technology Co ltd
Priority date: 2020-10-23
Filing date: 2020-10-23
Publication date: 2021-07-09
Anticipated expiration: 2030-10-23

Abstract

The utility model provides a gear kit with a buffer function, which comprises a gear, wherein a fixed disc is sleeved in a fluted disc, the inner surface of the fixed disc is a wave-shaped curved surface, and a plurality of fluted disc fixing ribs are formed by radially extending from the outer surface of the fixed disc to the inner diameter of the fluted disc; the buffer block is an elastic cylinder with a mounting hole in the center, the buffer block is sleeved in the fixed disk, the outer surface of the buffer block is consistent with the curved surface of the inner surface of the fixed disk in shape to form tight fit, and the surface of the mounting hole is a curved surface; the output assembly comprises an output connecting piece and an output shaft, the output connecting piece is sleeved in the mounting hole of the buffer block, and the outer surface of the output connecting piece is consistent with the curved surface shape of the mounting hole of the buffer block to form tight fit. The gear kit has the advantages of good vibration reduction effect and the like, solves the problem of damage to the gear caused by long-term vibration, reduces the running noise of the speed reducing mechanism, and has wide application value.

Description

Take buffer function's gear external member

Technical Field

The utility model relates to a decelerator especially relates to a take buffer function's gear external member.

Background

The gear is a toothed mechanical part capable of meshing with each other, is a power transmission mechanism, utilizes the speed converter of the gear to reduce the revolution number of an electric motor (motor) to a required revolution number and obtain a mechanism with larger torque, is used for transmitting power and motion, and has extremely wide application in mechanical transmission and the whole mechanical field. Along with the development of production, the stability of gear operation is emphasized. Most gear power input spare and output spare all adopt rigid connection structure on the market at present, and the vibrations of high frequency can take place for the gear under the drive of motor, and long-time vibrations are to damaging the gear flank of tooth, cause the phenomenon of smooth silk to the phenomenon that the speed reducer became invalid produces, and it is the problem that we need to solve to overcome long-term vibrations to the injury of gear.

SUMMERY OF THE UTILITY MODEL

The utility model provides a take buffer function's gear external member possesses advantages such as the damping is effectual, has solved long-term vibrations to the problem of the injury of gear, has also reduced the noise of reduction gears operation simultaneously, has extensive using value.

The utility model discloses a following technical scheme realizes above-mentioned purpose:

a gear kit with a buffering function, comprising: the gear comprises a hollow cylindrical fluted disc, gear teeth are arranged on the outer surface of the fluted disc, a fixed disc is sleeved in the fluted disc, the height of the fixed disc is not larger than that of the fluted disc, the inner surface of the fixed disc is a wave-shaped curved surface, and the inner surface of the fixed disc radially extends to the inner diameter of the fluted disc from the outer surface of the fixed disc to form a plurality of fluted disc fixing ribs; the buffer block is an elastic cylinder with a mounting hole in the center, the buffer block is sleeved in the fixed disk, the shape of the outer surface of the buffer block is consistent with that of the curved surface of the inner surface of the fixed disk to form tight fit, and the surface of the mounting hole is a curved surface; the output assembly comprises an output connecting piece and an output shaft, the output shaft is vertically arranged at the center of the output connecting piece, the output connecting piece is sleeved in the mounting hole of the buffer block, the outer surface of the output connecting piece is consistent with the curved surface shape of the mounting hole of the buffer block to form a tight fit, and the output connecting piece is a rigid body.

Further, the output connecting piece and the output shaft are integrally formed or split.

Furthermore, the outer surface of the fluted disc is provided with inclined gear teeth or straight gear teeth.

Furthermore, the outer surface of the output connecting piece is circumferentially provided with a convex column and a groove which are sequentially alternated, and the cross section of the convex column is gradually reduced from inside to outside.

Furthermore, the radial length of the convex column is 1/5-1/2 of the radius of the fluted disc.

Furthermore, the number of the convex columns is 6-15.

Furthermore, the outer surface of the buffer block is circumferentially provided with clamping columns and clamping grooves which are sequentially alternated, and the cross sections of the clamping columns are gradually reduced from inside to outside.

Further, the radial length of the clamping column is 1/4-2/3 of the radius of the fluted disc.

The utility model has the advantages that:

1. the utility model provides a take buffer function's gear external member, through set up the buffer block in the gear is inside, with the rigid connection between current gear and the output connection spare, become elastic connection, gear and output connection spare can not direct contact, the vibrations that the gear arouses are at first transmitted on the buffer block, most vibrations have been absorbed to the buffer block, consequently, the power vibration of transmitting on the output connection spare is little, operates steadily.

2. The outer surface of the output connecting piece is in a wave shape and is matched with the inner surface of the buffer block to form a tight fit, and when the gear rotates at a high speed, displacement cannot be generated between the output connecting piece and the buffer block.

3. The surface of buffer block is the wave type, forms the tight fit with the internal surface phase-match of fixed disk, and when the gear rotated at a high speed, there was not relative displacement between output connection spare, buffer block and the fluted disc, can guarantee the steady rotation of output shaft.

Drawings

Fig. 1 is a schematic view of the overall structure of a gear set with a buffering function according to the present invention;

FIG. 2 is an exploded view of a gear set with a buffering function according to the present invention;

fig. 3 is a sectional view of a gear set with a buffering function according to the present invention.

Detailed Description

The present invention will be further explained with reference to the accompanying drawings:

fig. 1 is a schematic diagram of an overall structure of a gear kit with a buffering function in this embodiment, and includes a gear 1, a buffer block 2, and an output assembly 3, where the output assembly includes an output connector 31 and an output shaft 32, and the center of the output shaft is used as a circle center, and the output connector 31, the buffer block 2, and the gear 1 are sequentially sleeved from inside to outside. Wherein the surface of output connecting piece and the internal surface of buffer block are connected with the profile, and the surface of buffer block and the fixed disk internal surface in the gear are connected with the profile, are equivalent to the buffer block clamp and establish between output connecting piece and gear to all elastic connection with output connecting piece and gear.

Specifically, the gear comprises a hollow cylindrical fluted disc 11, gear teeth 12 are arranged on the outer surface of the fluted disc, and the gear teeth can be a straight gear perpendicular to the height direction of the fluted disc or a helical gear forming a certain angle with the height direction of the fluted disc. The fixed disc 13 is sleeved in the fluted disc, and the height of the fixed disc is the same as that of the fluted disc, or the fixed disc can be slightly smaller than that of the fluted disc. The fixed disk is a hollow cylinder with wave-shaped curved side walls, and a plurality of fluted disk fixing ribs 14 are formed by radially extending the outer surface of the fixed disk to the inner diameter of the fluted disk and are used for enhancing the mechanical strength of the gear on one hand and fixing the fixed disk on the other hand. Preferably, each wave crest is provided with a fixed rib on the outer surface of the wavy fixed disk, and the fixed ribs firmly connect the fixed disk with the fluted disc under the high-speed rotation of the gear.

The buffer block is provided with the elastic cylinder body of mounting hole 21 for the center, and the buffer block cover is established the inside of fixed disk, the surface of buffer block with the internal surface curved surface shape of fixed disk is unanimous, forms the tight fit, the surface of mounting hole 21 is the curved surface, and is unanimous with output connecting piece's external surface shape, establishes the output connecting piece card in the external surface curved surface of buffer block. Be provided with card post 22 and draw-in groove 23 in proper order in the surface circumferencial direction of buffer block in turn, the cross section of card post reduces from inside to outside gradually, and the card post is gone into the curved surface of fixed disk, can guarantee that fixed disk firm connection is on the plane of fluted disc inboard, and the length of card post is better longer more, and the volume of buffer block is big more, and the shock attenuation effect is better, therefore card post radial length does fluted disc radial 1/4~ 2/3. The buffer block has good vibration damping effect on the gear rotating at high speed, and the vibration damping effect is over 85% through tests. When the helical gear rotated, the vibrations that cause directly transmitted the buffer block on, the inside macromolecule chain segment of buffer block can produce relative motion to can produce a counter-force that makes the vibrations decay, and turn into heat energy with the mechanical energy that vibrations produced, and then can attenuate gradually when making vibrations transmit on the buffer block, reach the damping purpose, on the other hand is based on the elastic buffer characteristic of buffer block, can further reduce vibrations gradually. Therefore, the vibration transmitted to the output link is greatly reduced, thereby making the output power smooth. In order to enable the buffer block to have a better vibration reduction effect, the thickness of the buffer block is 0.5-1.2 times of the thickness of the gear. Too thin buffer block damping effect can weaken, and too thick buffer block can make helical gear volume grow, increase cost although having fine damping effect.

The output assembly 3 comprises an output connecting piece 31 and an output shaft 32, the output shaft is vertically arranged in the center of the output connecting piece, the output connecting piece is sleeved in the mounting hole of the buffer block, and the output connecting piece is a rigid body. The output connecting piece and the output shaft can be integrally formed, and the output shaft can also be fixedly connected to the center of the output connecting piece. The outer surface of the output connecting piece is provided with a convex column 311 and a groove 312 which are sequentially alternated in the circumferential direction, the cross section of the convex column is gradually reduced from inside to outside, the convex column can be in a triangular shape, a conical shape or other shapes, and the edge of the convex column is in a needle point shape. The convex column is clamped into the curved surface in the buffer block, so that the output connecting piece is embedded into the buffer block due to the shape, and the output connecting piece and the buffer block are prevented from displacing under the high-speed rotation of the gear. Furthermore, the radial length of the convex columns is 1/5-1/2 of the radius of the fluted disc, and the number of the convex columns is 6-15. If the radial length of the convex column is too short, the convex column is not favorable for fixation, and if the radial length of the convex column is too long, the radial thickness of the buffer block is reduced, and the damping effect is not favorable for reduction.

The utility model discloses during the installation of gear external member, go into the fixed disk with the buffer block card inside, again with output connecting piece card as the buffer block inside, simple structure, simple to operate, during the high-speed rotation of gear, no relative displacement between output connecting piece, buffer block and the fluted disc can guarantee the steady rotation of output shaft, simultaneously, also can effectively the noise reduction.

The foregoing illustrates and describes the principles, general features, and advantages of the present invention. It will be understood by those skilled in the art that the present invention is not limited to the above embodiments, and that the foregoing embodiments and descriptions are provided only to illustrate the principles of the present invention without departing from the spirit and scope of the present invention.

Claims

1. A take gear external member of buffer function, its characterized in that includes:

the gear comprises a hollow cylindrical fluted disc, gear teeth are arranged on the outer surface of the fluted disc, a fixed disc is sleeved in the fluted disc, the height of the fixed disc is not larger than that of the fluted disc, the inner surface of the fixed disc is a wave-shaped curved surface, and the inner surface of the fixed disc radially extends to the inner diameter of the fluted disc from the outer surface of the fixed disc to form a plurality of fluted disc fixing ribs;

the buffer block is an elastic cylinder with a mounting hole in the center, the buffer block is sleeved in the fixed disk, the shape of the outer surface of the buffer block is consistent with that of the curved surface of the inner surface of the fixed disk to form tight fit, and the surface of the mounting hole is a curved surface;

the output assembly comprises an output connecting piece and an output shaft, the output shaft is vertically arranged at the center of the output connecting piece, the output connecting piece is sleeved in the mounting hole of the buffer block, the outer surface of the output connecting piece is consistent with the curved surface shape of the mounting hole of the buffer block to form a tight fit, and the output connecting piece is a rigid body.

2. The gear set with a buffering function according to claim 1, wherein the output connecting member and the output shaft are integrally formed or separated.

3. The gear kit with the buffering function according to claim 1, wherein an outer surface of the toothed plate is provided with oblique teeth or straight teeth.

4. The gear set with the buffering function according to claim 1, wherein the outer surface of the output connecting member is provided with a convex pillar and a concave groove which alternate in sequence in the circumferential direction, and the cross section of the convex pillar is gradually reduced from inside to outside.

5. The gear set with the buffering function of claim 3, wherein the radial length of the convex column is 1/5-1/2 of the radius of the fluted disc.

6. The gear set with the buffering function according to claim 4, wherein the number of the convex columns is 6-15.

7. The gear kit with the buffering function according to claim 1, wherein the buffer block is provided with a plurality of sequentially alternating clamping columns and clamping grooves in the circumferential direction of the outer surface, and the cross sections of the clamping columns are gradually reduced from inside to outside.

8. The gear set with the buffering function of claim 7, wherein the radial length of the clamping column is 1/4-2/3 of the radius of the fluted disc.