CN215110376U - Cold warm forging gear - Google Patents

Abstract

The utility model relates to a cold warm forging forming gear, including integrated into one piece's gear body and the teeth of a cogwheel, be equipped with the shaft hole on the gear body, the axle sleeve is equipped with to the pressure in the shaft hole, and axle sleeve one end is equipped with the edge that turns over outward that leans on with the counterbalance of gear body up end. A plurality of radial slideways are concavely arranged on the lower end face of the gear body, an axial slideway vertically communicated with the radial slideways is arranged on the upper end face of the gear body, a first sliding block is connected in the radial slideway in a sliding manner, a second sliding block is connected in the axial slideway in a sliding manner, a first inclined face which inclines upwards along the axial direction is arranged at the upper end of the first sliding block, a second inclined face is arranged at the lower end of the second sliding block, and the first inclined face is in sliding fit with the second inclined face; the outer end part of the second sliding block is also radially bent inwards to form a pressing head abutted against the outward turning edge; the first sliding block moves outwards along the radial direction of the radial slideway and pushes the second sliding block to move inwards along the axial direction of the axial slideway under the action of centrifugal force, so that the pressing head is driven to press the outwards turned edge. The structure can improve the stability of the connection between the gear and the shaft sleeve and is reliable in high-speed operation.

Description

Cold warm forging gear

Technical Field

The utility model relates to the technical field of gears, especially, relate to a cold warm forging forming gear.

Background

Cold and warm forging forming is a net shape and near net shape processing technology, is gradually and widely applied to the processing process of gears of automobiles, motorcycles and the like at present, and has the advantages of high shaft hole precision, good surface quality, high forming strength, long service life and the like. The existing cold-warm forging gear generally utilizes a wear-resistant shaft sleeve pressed at a shaft hole to realize the connection of the gear and the shaft in the installation process, thereby avoiding the bonding and gluing of the gear and the shaft. However, after the gear runs at a high speed for a long time, the situation that the shaft sleeve is loosened to cause unstable connection between the gear and the shaft, obvious vibration and the like is inevitable.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problem that overcome above-mentioned problem, and provide a cold warm forging forming gear of reinforcing shaft hole and bushing steadiness, high-speed operation is more steady reliable.

The technical scheme of the utility model is that:

a cold warm forging forming gear, gear body and the teeth of a cogwheel including integrated into one piece, be equipped with the shaft hole on the gear body, the axle sleeve is equipped with to the pressure in shaft hole, axle sleeve one end is equipped with the edge that turns over that leans on with the counterbalance of gear body up end, its characterized in that: a plurality of radial slideways are concavely arranged on the lower end face of the gear body, axial slideways which are vertically communicated with the radial slideways in a one-to-one correspondence mode are arranged on the upper end face of the gear body, a first sliding block is connected in a radial sliding mode in the radial slideways, a second sliding block is connected in the axial sliding mode in the axial slideways, a first inclined face which inclines upwards along the axial direction is arranged on the upper end face of the first sliding block, a second inclined face which is matched with the first inclined face is arranged on the lower end face of the second sliding block, and the first inclined face is in sliding fit with the second inclined face; the end part of the second sliding block, which extends out of the axial slideway, is also radially bent inwards to form a pressing head which is abutted and contacted with the outwards-turned edge; therefore, the first sliding block moves outwards along the radial direction of the radial slideway and pushes the second sliding block to move inwards along the axial direction of the axial slideway under the action of the rotating centrifugal force, so that the pressing head is driven to press the outwards-turned edge.

With the help of the structure, the utility model discloses drive first slider radially outwards with the help of rotatory centrifugal force, the inclined plane through first slider and second slider supports the pushing action, makes the second slider move axially inwards together with the clamping head to make the clamping head support to press and compress tightly the axle sleeve and turn over outward along with the gear up end, make the difficult pine of axle sleeve take off, and rotation rate is big more, the packing force is big more, the axle sleeve is firm more with being connected of gear.

Further, in the cold warm forging gear of the present invention, the radial slide is uniformly distributed around the shaft hole.

Further, cold warm forging takes shape in the gear, the terminal surface corresponds every radial slide and seals and be equipped with protective cover under the gear body, prevents that debris from getting into the slip of the first slider of radial slide internal disturbance.

Further, in the cold warm forging gear of the present invention, the first slider and the second slider are made of plastic, so that the present invention has the advantages of light weight and low cost.

Further, in the cold warm forging gear of the present invention, the axial slide and the radial slide are connected to form an L-shape.

The utility model has the advantages that: the utility model has the advantages of simple structure, and reasonable design, the first slider and the second slider of the radial slide and the axial slide and the inclined plane sliding fit of perpendicular intercommunication have been adopted, first slider forms radial outside centrifugal force when the gear is rotatory, drive the axial of second slider and move inwards through the inclined plane cooperation, make the hold-down head inwards support the axle sleeve and turn up along forming certain axial packing force, and the rotation rate of gear is big more, the compact heap is pressed tight more, the axle sleeve is difficult more to take off from the gear pine, the unstable shortcoming of axle sleeve and gear connection has effectively been avoided.

Drawings

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

Fig. 2 is a top view of the present invention.

Detailed Description

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

referring to fig. 1 and 2, the cold-warm forging gear of the present embodiment includes a gear body 1 and gear teeth that are integrally formed, a shaft hole is disposed on the gear body 1, a shaft sleeve 2 is internally pressed in the shaft hole, and an outward-turning edge 3 that abuts against an upper end surface of the gear body 1 is disposed at one end of the shaft sleeve 2. Gear body 1 lower terminal surface is the concave many radial slide 4 that are equipped with on the upper end face, is equipped with the axial slide 5 with radial slide 4 one-to-one perpendicular intercommunication, radial slide 4 encircles shaft hole evenly distributed. The axial slideway 5 is communicated with the radial slideway 4 to form an L shape. And a protective cover plate 9 is sealed at the lower end face of the gear body 1 corresponding to each radial slideway 4.

The radial slide way 4 is internally and radially connected with a first slide block 6 in a sliding manner, the axial slide way 5 is internally and axially connected with a second slide block 7 in a sliding manner, and the first slide block 6 and the second slide block 7 are made of plastics. The upper end surface of the first sliding block 6 is provided with a first inclined surface which inclines upwards and outwards along the axial direction, the lower end surface of the second sliding block 7 is provided with a second inclined surface which is matched with the first inclined surface, and the first inclined surface is in sliding fit with the second inclined surface; the end of the second slider 7 extending out of the axial slideway is also bent radially inwards to form a pressing head 8 which is in abutting contact with the evagination rim 3. Therefore, the first slide block 6 moves outwards along the radial direction of the radial slide way 4 and pushes the second slide block 7 to move inwards along the axial direction of the axial slide way 5 under the action of the rotating centrifugal force, so that the pressing head 8 is driven to press the outwards-turned edge 3.

The specific embodiments described herein are merely illustrative of the principles of the present invention and its efficacy, and are not intended to limit the invention. Modifications and variations can be made to the above-described embodiments by those skilled in the art without departing from the spirit and scope of the present invention. Therefore, it is intended that all equivalent modifications or changes which can be made by those skilled in the art without departing from the spirit and technical idea of the present invention shall be covered by the claims of the present invention.

Claims (5)

1. The utility model provides a cold warm forging forming gear, includes integrated into one piece's gear body and the teeth of a cogwheel, be equipped with the shaft hole on the gear body, the axle sleeve is equipped with to the pressure in shaft hole, axle sleeve one end is equipped with the edge that turns over outward that leans on with gear body up end counterbalance, its characterized in that: a plurality of radial slideways are concavely arranged on the lower end face of the gear body, axial slideways which are vertically communicated with the radial slideways in a one-to-one correspondence mode are arranged on the upper end face of the gear body, a first sliding block is connected in a radial sliding mode in the radial slideways, a second sliding block is connected in the axial sliding mode in the axial slideways, a first inclined face which inclines upwards along the axial direction is arranged on the upper end face of the first sliding block, a second inclined face which is matched with the first inclined face is arranged on the lower end face of the second sliding block, and the first inclined face is in sliding fit with the second inclined face; the end part of the second sliding block, which extends out of the axial slideway, is also radially bent inwards to form a pressing head which is abutted and contacted with the outwards-turned edge; therefore, the first sliding block moves outwards along the radial direction of the radial slideway and pushes the second sliding block to move inwards along the axial direction of the axial slideway under the action of the rotating centrifugal force, so that the pressing head is driven to press the outwards-turned edge.

2. The cold warm forging formed gear according to claim 1, wherein: the radial slideway surrounds shaft hole evenly distributed.

3. The cold warm forging formed gear according to claim 1, wherein: and the lower end face of the gear body is provided with a protective cover plate corresponding to each radial slideway in a sealing manner.

4. The cold warm forging formed gear according to claim 1, wherein: the first sliding block and the second sliding block are made of plastics.

5. The cold warm forging formed gear according to claim 1, wherein: the axial slideway is communicated with the radial slideway and is L-shaped.

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