CN218523007U

CN218523007U - New forms of energy directly drive tooth cover

Info

Publication number: CN218523007U
Application number: CN202222115109.2U
Authority: CN
Inventors: 江于青; 江振翔; 王志林
Original assignee: Zhejiang Ruige Intelligent Technology Co ltd
Current assignee: Zhejiang Ruige Intelligent Technology Co ltd
Priority date: 2022-08-11
Filing date: 2022-08-11
Publication date: 2023-02-24
Anticipated expiration: 2032-08-11

Abstract

The utility model provides a new forms of energy directly drive tooth cover belongs to mechanical technical field. The problems that the existing direct-drive gear sleeve is low in machining efficiency, high in manufacturing cost and low in product percent of pass are solved. This new forms of energy directly drives tooth cover, including being discoid body, the terminal surface of body has convex profile of tooth portion, and the lower terminal surface of profile of tooth portion is parallel and level mutually with the terminal surface of body, and profile of tooth portion adopts extrusion forging integrated into one piece structure, and the middle part of body is equipped with the intercommunicating pore that runs through, is equipped with the step in the intercommunicating pore. The new energy direct-drive gear sleeve has the advantages of high machining efficiency, low manufacturing cost and high qualification rate.

Description

New forms of energy directly drive tooth cover

Technical Field

The utility model belongs to the technical field of machinery, a tooth cover, especially a new forms of energy directly drive tooth cover are related to.

Background

The synchronizer is a transmission part in the automobile transmission, and the sliding gear sleeve is an important constituent unit of the synchronizer. The utility model relates to a sliding gear sleeve with a structural form in a lock pin type synchronizer. The existing sliding gear sleeve is generally manufactured into a blank by integral forging and pressing, and then is subjected to processing procedures such as tooth profile processing, turning, milling, heat treatment and the like, and is of an integral structure and disc-shaped in appearance. The groove structure on the side edge of the outer ring is a shifting fork groove for gear shifting, the upper surface and the lower surface of the disc are both provided with external spline joint tooth structures, and the end surface of the external teeth is provided with an R-arc chamfer. The teeth on the upper part of the sliding gear sleeve with the integral design are convenient to process, but the joint teeth on the lower part are difficult to process because the teeth are designed in the lower end surface of the shifting fork groove, only a special cylindrical gear shaper cutter can be used for slotting, the processing efficiency is very low, the processing working hour is over 1 hour generally, and the service life of the cylindrical gear shaper cutter is low, so the manufacturing cost is high, and the product percent of pass is low.

Disclosure of Invention

The utility model aims at having the above-mentioned problem to current technique, provided a new forms of energy that machining efficiency is high, low in manufacturing cost and qualification rate are high and directly driven the tooth cover.

The purpose of the utility model can be realized by the following technical proposal: new forms of energy directly drives tooth cover, including being discoid body, a terminal surface of body have convex profile of tooth portion, its characterized in that, the lower terminal surface of profile of tooth portion with a terminal surface looks parallel and level of body, profile of tooth portion adopt extrusion forging integrated into one piece structure, the middle part of body be equipped with the intercommunicating pore that runs through, the intercommunicating pore in be equipped with the step.

The lower terminal surface of profile of tooth portion is parallel and level mutually with a terminal surface of body, and profile of tooth portion adopts extrusion forging integrated into one piece structure, has that machining efficiency is high, low in manufacturing cost and qualification rate are high, has the advantage that structural strength is high and long service life simultaneously, and through setting up the above-mentioned intercommunicating pore that has the step, this tooth cover has the convenient and accurate advantage in location of connecting.

In the new energy direct-drive gear sleeve, the outer end face of the step is provided with a plurality of limiting grooves, and the limiting grooves are uniformly arranged by taking the axis of the body as the center. Through setting up foretell spacing groove, make this tooth cover have better spacing effect when installation and use, improved the reliability of using.

In the above-mentioned new forms of energy directly drive tooth cover, the spacing groove be the inclined plane of symmetry setting and the contained angle that two inclined planes formed is 120 ± 20', pass through circular arc transition between two inclined planes. The limiting groove is formed by the two inclined planes, and has the advantage of convenience in disassembly and assembly.

In the new energy direct-drive gear sleeve, the body is provided with a plurality of through lightening holes, the number of the lightening holes is 6-12, and the lightening holes are uniformly arranged by taking the axis of the body as the center. Through setting up foretell lightening hole, reduced the weight of body, avoided stress concentration, improved structural strength.

In the above-mentioned new forms of energy directly drive tooth cover, the other end face of body on be equipped with spacing groove two and the inclined plane that spacing groove two symmetries set up and the contained angle that two inclined planes formed is 120 ± 20', pass through circular arc transition between two inclined planes. By adopting the arrangement, the stress concentration of the groove bottom of the second limiting groove is avoided, and the structural strength is improved.

In the new energy direct-drive tooth sleeve, the included angle between the two side walls of the tooth-shaped portion is 48 ± 1 °, the tooth tops and the side walls are in fillet transition with the radius of 0.3mm, and the tooth roots of the tooth-shaped portion are in fillet transition with the radius of 0.8 mm. By adopting the arrangement, the stress concentration at the tooth root of the tooth-shaped part is avoided, and the structural strength is improved.

In the new energy direct-drive gear sleeve, the body is made of 20 CrMnTiH. The body is made of 20CrMnTiH, so that the body has high low-temperature impact toughness, good processability and fatigue resistance, and the service life is prolonged.

In the new energy direct-drive gear sleeve, the outer edges of the two end surfaces of the body are provided with annular convex bodies protruding outwards, and the height from each annular convex body to the corresponding end surface of the body is 3.8-4.2 mm.

Compared with the prior art, the new energy direct-drive gear sleeve has the following advantages:

1. the lower end surface of the tooth-shaped part is flush with one end surface of the body, and the tooth-shaped part adopts an extrusion forging integral forming structure, so that the processing efficiency is high, the manufacturing cost is low, the qualification rate is high, and the advantages of high structural strength and long service life are achieved;

2. through the arrangement of the communicating hole with the step, the gear sleeve has the advantages of convenient connection and accurate positioning;

3. by arranging the limiting groove, the gear sleeve has a good limiting effect when being installed and used, and the use reliability is improved;

4. through setting up foretell lightening hole, reduced the weight of body, avoided stress concentration, improved structural strength.

Drawings

Fig. 1 is a schematic perspective view of the new energy direct-drive gear sleeve.

Fig. 2 is a schematic top view of the new energy direct-drive gear sleeve.

Fig. 3 isbase:Sub>A schematic sectional viewbase:Sub>A-base:Sub>A of fig. 2.

Fig. 4 is a partial schematic view B of fig. 3.

Fig. 5 is a partial view of fig. 3 taken along direction C.

In the figure, 1, a body; 1a, a tooth-shaped part; 2. a communicating hole; 2a, a step; 3. a limiting groove; 4. lightening holes; 5. a second limiting groove; 6. an annular convex body.

Detailed Description

The following are specific embodiments of the present invention and the accompanying drawings are used to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.

As shown in fig. 1 to 5, the new energy direct-drive gear sleeve comprises a disc-shaped body 1, wherein one end surface of the body 1 is provided with a convex tooth-shaped portion 1a, the lower end surface of the tooth-shaped portion 1a is flush with one end surface of the body 1, the tooth-shaped portion 1a is of an extrusion forging integrated structure, a through communication hole 2 is formed in the middle of the body 1, a step 2a is arranged in the communication hole 2, and a plurality of limiting grooves 3 are formed in the outer end surface of the step 2a and are uniformly arranged by taking the axis of the body 1 as the center and the limiting grooves 3. The limiting groove 3 is inclined surfaces which are symmetrically arranged, and an included angle N formed by the two inclined surfaces is 120 degrees +/-20', and the two inclined surfaces are in arc transition.

The body 1 is provided with a plurality of through lightening holes 4, the number of the lightening holes 4 is 6-12, and the lightening holes are uniformly arranged by taking the axis of the body 1 as the center, so that the weight of the body 1 is reduced, the stress concentration is avoided, and the structural strength is improved.

The inclined plane that is equipped with two 5 and the symmetrical setting of two 5 of spacing grooves on the other end face of body 1 and the contained angle that forms of two inclined planes are 120 ± 20', through the circular arc transition between two inclined planes, has avoided the tank bottom stress concentration of two 5 of spacing grooves, has improved structural strength.

The included angle M of the two side walls of the tooth-shaped portion 1a is 48 ° ± 1 °, and the tooth tops and the side walls are in fillet transition with a radius of 0.3mm, and the tooth roots of the tooth-shaped portion are in fillet transition with a radius of 0.8mm, so that stress concentration at the tooth roots of the tooth-shaped portion 1a is avoided, and structural strength is improved.

The body 1 is made of 20CrMnTiH, so that the body 1 has high low-temperature impact toughness, good processability and fatigue resistance, and the service life is prolonged. The outer edges of the two end surfaces of the body 1 are provided with annular convex bodies 6 which are convex towards the outer sides, and the height between the annular convex bodies 6 and the corresponding end surfaces of the body 1 is 3.8mm-4.2mm.

The lower terminal surface of profile of tooth portion 1a is parallel and level with a terminal surface of body 1 mutually, and profile of tooth portion 1a adopts extrusion forging integrated into one piece structure, has that machining efficiency is high, low in manufacturing cost and qualification rate are high, has the advantage that structural strength is high and long service life simultaneously, through setting up the aforesaid intercommunicating pore 2 that has step 2a, this tooth cover has the convenient and accurate advantage in location of connection. Through setting up foretell spacing groove 3, make this tooth cover have better spacing effect when installation and use, improved the reliability of using. The limiting groove 3 is formed by the two inclined planes, and has the advantage of convenience in disassembly and assembly.

The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications, additions and substitutions for the specific embodiments described herein may be made by those skilled in the art without departing from the spirit of the invention or exceeding the scope of the invention as defined in the accompanying claims.

Although the terms of the body 1, the tooth 1a, the communication hole 2, the step 2a, the stopper groove 3, the lightening hole 4, the second stopper groove 5, the annular projection 6, etc. are used more herein, the possibility of using other terms is not excluded. These terms are used merely to more conveniently describe and explain the nature of the present invention; they are to be construed in a manner that is inconsistent with the spirit of the invention.

Claims

1. New forms of energy directly drives tooth cover, including being discoid body (1), the one end face of body (1) convex profile of tooth portion (1 a) has, its characterized in that, the lower terminal surface of profile of tooth portion (1 a) with the one end face looks parallel and level of body (1), profile of tooth portion (1 a) adopt extrusion forging integrated into one piece structure, the middle part of body (1) be equipped with intercommunicating pore (2) that run through, intercommunicating pore (2) in be equipped with step (2 a).

2. The new energy direct-drive gear sleeve according to claim 1, characterized in that a plurality of limiting grooves (3) are formed in the outer end face of the step (2 a), and the limiting grooves (3) are uniformly arranged by taking the axis of the body (1) as the center.

3. The new energy direct-drive tooth sleeve according to claim 2, wherein the limiting groove (3) is formed by symmetrically arranged inclined surfaces, and an included angle formed by the two inclined surfaces is 120 degrees ± 20', and the two inclined surfaces are in arc transition.

4. The new energy direct-drive gear sleeve according to claim 1, 2 or 3, wherein the body (1) is provided with a plurality of through lightening holes (4), the number of the lightening holes (4) is 6-12, and the lightening holes are uniformly arranged by taking the axis of the body (1) as a center.

5. The new energy direct drive tooth sleeve according to claim 1, 2 or 3, wherein the other end surface of the body (1) is provided with a second limiting groove (5), the second limiting groove (5) is symmetrically provided with two inclined surfaces, and an included angle formed by the two inclined surfaces is 120 degrees +/-20', and the two inclined surfaces are in arc transition.

6. The new energy direct drive tooth sleeve according to claim 1, 2 or 3, wherein the included angle between the two side walls of the tooth-shaped portion (1 a) is 48 ° ± 1 °, the tooth crest and the side walls are rounded at a radius of 0.3mm, and the tooth root of the tooth-shaped portion (1 a) is rounded at a radius of 0.8 mm.

7. The new energy direct-drive gear sleeve according to claim 1, 2 or 3, characterized in that the body (1) is made of 20 CrMnTiH.

8. The new energy direct-drive gear sleeve according to claim 1, 2 or 3, wherein the outer edges of the two end faces of the body (1) are provided with annular convex bodies (6) protruding outwards, and the height from each annular convex body (6) to the corresponding end face of the body (1) is 3.8mm-4.2mm.