High-strength gear structure

Abstract

The high-strength gear structure comprises a gear tooth outer ring piece, a bearing and an inner ring piece, the gear tooth outer ring piece is connected to the circumferential end face of the outer side of the bearing in a sleeved mode, an annular installation groove is formed in the circumferential end face of the inner ring piece, and a high-elasticity soft rubber ring is connected into the annular installation groove in a sleeved mode. The inner ring piece is sleeved with the circumferential end face of the inner side of the bearing, and the high-elasticity soft rubber ring abuts against the circumferential end face of the inner side of the bearing. The bearing is wrapped by the gear tooth outer ring piece, the centrifugal force generated by the bearing can be resisted, the centrifugal force of other gears can form extrusion force on the bearing, the inner ring piece is connected with the inner side of the bearing in a sleeved mode, the bearing can be supported, and the high resilience of the high-elasticity soft rubber ring can relieve most extrusion force. The overall compressive strength of the gear structure is further improved, the gear structure is prevented from deforming, and the service life is prolonged.

Description

TECHNICAL FIELD

[0001] The utility model relates to gear structure technical field, concretely is a high strength gear structure. BACKGROUND

[0002] Gear is a kind of mechanical component with tooth on rim and can continuously mesh transmission movement and power.It transmits the movement and power of driving shaft to driven shaft through the meshing of gear teeth, and realizes the change of speed, torque and other parameters.There is a special transmission gear, and its main function is to mesh two or more gears through gear teeth, and multiple gears are synchronously rotated by rotating, and it does not need to be connected with driving shaft or driven shaft.

[0003] In prior art, a bearing is added to the transmission gear to make the gear rotate quickly.If there is no requirement on volume, the gear and bearing can be directly selected and assembled for use.But for some gear structures with small volume, the following problems exist: under high-speed rotation, centrifugal force generated by other gears will generate a pressing force on the transmission gear, and the compression strength of small bearing is insufficient, which will accelerate the wear of bearing and gear, reduce service life, and more seriously, the gear and bearing will be deformed, and even separated.For the transmission of dense gear set, if one gear falls off, it will cause the mutual crushing damage of large gears, and if it pops up to the circuit part, it will cause the safety hazard of circuit short circuit. CONTENT OF THE UTILITY MODEL

[0004] The utility model aims at providing a high strength gear structure, which solves the problems in the background technology.

[0005] To achieve the above object, the utility model provides the following technical scheme: a high strength gear structure, which comprises a gear tooth outer ring piece, a bearing and an inner ring piece, the gear tooth outer ring piece is sleeved on the circumferential end face of the outer side of the bearing, an annular mounting groove is arranged on the circumferential end face of the inner ring piece, a high-elasticity soft rubber ring is sleeved in the annular mounting groove, the inner ring piece is sleeved with the circumferential end face of the inner side of the bearing, the circumferential end face of the outer side of the inner ring piece is in abutment with the circumferential end face of the inner side of the bearing, and the inner ring piece and the bearing are in interference fit, and the high-elasticity soft rubber ring is in abutment with the circumferential end face of the inner side of the bearing.

[0006] Preferably, the inner ring piece is further provided with a mounting groove along the outer circumferential end face, wherein the annular mounting groove is located in the middle of the mounting groove, the same side inner wall of the mounting groove and the annular mounting groove forms a stepped shape, and a slope is arranged on the inner wall of the mounting groove, which gradually inclines outward from the inner end to the outer end.

[0007] Preferably, the gear tooth outer ring piece is uniformly provided with a plurality of gear tooth parts.

[0008] Preferably, the bearing comprises at least a bearing outer ring, a bearing inner ring and a plurality of balls which are fitted and installed.

[0009] Preferably, the bearing further comprises a plurality of sliding blocks which are installed between the bearing outer ring and the bearing inner ring, and the plurality of sliding blocks are arranged in intervals with the plurality of balls.

[0010] Compared with the prior art, the utility model has the beneficial effects as follows:

[0011] The utility model discloses a tooth outer ring piece and inner ring piece are set up, tooth outer ring piece cladding bearing can resist centrifugal force of bearing self -generated, and the centrifugal force of other gear forms extrusion pressure to bearing, through the inner ring piece and bearing inside sleeve joint, can support force to bearing, reduce the possibility of bearing deformation, and the high resilience of high elastic force soft rubber ring can slow down most extrusion pressure, further improve the overall compression strength of gear structure, prevent gear structure from producing deformation, improve the service life. BRIEF DESCRIPTION OF DRAWINGS

[0012] Fig. 1 It is the structure schematic view of the utility model;

[0013] Fig. 2 It is the longitudinal section view of the utility model;

[0014] Fig. 3 It is the transverse section view of the utility model;

[0015] Fig. 4 It is the partial structure schematic view of the utility model. DETAILED DESCRIPTION

[0016] The technical scheme in the embodiments of the utility model will be described clearly and completely below in conjunction with the drawings in the embodiments of the utility model, and obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by the person skilled in the art without creative labor are within the protection scope of the utility model.

[0017] Please refer to Figs. 1 to 4The utility model provides a kind of high-strength gear structure, including from outside and inside cooperation installation's gear outer ring piece 1, bearing 2 and inner ring piece 3, gear outer ring piece 1 is sleeved on the circumferential end surface of bearing 2 outside, reach the effect of covering bearing 2, can offset centrifugal force generated by bearing 2 itself rotation, annular installation groove 4 is set on the circumferential end surface of inner ring piece 3, when high elasticity soft rubber ring 5 is installed in annular installation groove 4, high elasticity soft rubber ring 5 protrudes from the highest point of annular installation groove 4, the circumferential end surface of inner ring piece 3 and bearing 2 inside is sleeved, the circumferential end surface of inner ring piece 3 outside and the circumferential end surface of bearing 2 inside are in abutment, and inner ring piece 3 and bearing interference fit, inner ring piece 3 can provide a support force for bearing, can offset extrusion force of other gear to bearing 2, simultaneously by extruding high elasticity soft rubber ring 5, high elasticity soft rubber ring 5 and the circumferential end surface of bearing 2 inside are in abutment, the high resilience of high elasticity soft rubber ring 5 can slow down most extrusion force, further improve the overall compression strength of gear structure, prevent gear structure from producing deformation, improve service life.

[0018] Inner ring piece 3 is further provided with installation groove 6 along the outside circumferential end surface, wherein annular installation groove 4 is located in the middle of installation groove 6, installation groove 6 and the same side inner wall of annular installation groove 4 form a stepped shape, a slope 7 gradually inclined to the outside from the inner end to the outer end is arranged on the inner wall of installation groove 6, which can make inner ring piece 3 and bearing 2 more easily cooperate and install.

[0019] In the embodiment, a plurality of gear teeth parts 8 are uniformly arranged on gear outer ring piece 1, and a meshing groove matching the shape of gear teeth part 8 is formed between any two adjacent gear teeth parts 8.

[0020] Bearing 2 includes at least bearing outer ring 21, bearing inner ring 22 and a plurality of balls 23 cooperatively installed.

[0021] Bearing 2 further includes a plurality of sliding blocks 24, which are installed between bearing outer ring 21 and bearing inner ring 22, and the surface of sliding block 24 is smooth and has multiple circular arcs, which can slide relative to bearing outer ring 21 and bearing inner ring 22 respectively, and the plurality of balls 23 and the plurality of sliding blocks 24 are arranged in a spaced manner, which can uniformly distribute the balls 23 and the sliding blocks 24, prevent dynamic imbalance caused by unbalanced weight, improve the smoothness of bearing rotation, and the balls 23 and the sliding blocks 24 are in contact with the bearing outer ring 21 and the bearing inner ring 22 respectively, forming multiple contact parts, further improving the support effect of bearing 2 and the service life of gear structure.

[0022] It is apparent for a person skilled in the art that the present application is not restricted to the details of the above exemplary embodiments, but that it can be implemented in other concrete forms without departing from the spirit or the essential characteristics of the present application. Therefore, the embodiments should be considered as exemplary only, and not limiting, the scope of the present application being defined by the appended claims rather than the above description, and all changes coming within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference signs in the claims should not be construed as limiting the claims concerned.

Claims

1. A high strength gear construction comprising a gear tooth outer ring member, a bearing and an inner ring member, characterised in that: The tooth outer ring member is sleeved on the circumferential end surface of the bearing outer side, the circumferential end surface of the inner ring member is provided with an annular mounting groove, a high-elasticity soft rubber ring is sleeved in the annular mounting groove, the inner ring member is sleeved with the circumferential end surface of the bearing inner side, the circumferential end surface of the inner ring member outer side is in abutment with the circumferential end surface of the bearing inner side, and the inner ring member is in interference fit with the bearing, and the high-elasticity soft rubber ring is in abutment with the circumferential end surface of the bearing inner side.

2. A high-strength gear structure according to claim 1, characterized by: The inner ring member is further provided with a mounting groove along the outer circumferential end surface, wherein the annular mounting groove is located in the middle of the mounting groove, the mounting groove and the inner wall of the same side of the annular mounting groove form a stepped shape, and a slope gradually inclined to the outer side from the inner end to the outer end is arranged on the inner wall of the mounting groove.

3. The high-strength gear structure according to claim 1, characterized by: The tooth outer ring member is uniformly provided with a plurality of tooth parts.

4. The high-strength gear structure according to claim 1, characterized by: The bearing comprises at least a bearing outer ring, a bearing inner ring and a plurality of balls which are mounted in cooperation.

5. A high-strength gear structure according to claim 4, characterized by: The bearing further comprises a plurality of sliding blocks which are mounted between the bearing outer ring and the bearing inner ring, and the plurality of sliding blocks are arranged in intervals with the plurality of balls.

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