Synchronizer gear sleeve for automobile transmission

Abstract

The utility model relates to the technical field of automobile parts, in particular to a synchronizer gear sleeve for an automobile transmission, which comprises a gear sleeve main body, a groove is arranged on the outer wall of the gear sleeve main body, a heat conduction metal ring is arranged inside the groove, and first heat dissipation holes are arranged on the inner side face of the heat conduction metal ring. Second heat dissipation holes are evenly formed in the front face of the heat conduction metal ring, third heat dissipation holes are evenly formed in the front face of the gear sleeve body, a gear body is arranged on the inner side face of the gear sleeve body, the outer side of the gear sleeve body is sleeved with a protection sleeve, and through holes are evenly formed in the outer side of the protection sleeve. Through the heat conduction metal ring, the first heat dissipation holes, the second heat dissipation holes and the third heat dissipation holes, heat dissipation of the gear sleeve body can be achieved by improving heat conductivity and air fluidity when the gear sleeve body is heated in the use period, and therefore the heat dissipation effect of the gear sleeve body can be better.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of automobile parts, specifically to a synchronizer gear sleeve for automobile transmission. BACKGROUND

[0002] The synchronizer gear sleeve for automobile transmission commonly used at present mainly comprises a transmission shaft, a gear hub provided on the transmission shaft and a coupling gear, a gear sleeve body is provided outside the gear hub, the gear sleeve body is in transmission connection with the gear hub through spline teeth and in transmission connection with the coupling gear through spline teeth, the coupling gear is in movable connection with the transmission shaft, the gear sleeve body can slide along the axial direction of the transmission shaft so that the gear sleeve body can slide into key connection with the coupling gear and can slide reversely to disengage from the key connection.

[0003] At present, the synchronizer gear sleeve for automobile transmission generates a large amount of heat during use, and long-time work can cause the synchronizer gear sleeve to overheat, thereby affecting the overall operation of the automobile transmission.

[0004] Therefore, it is necessary to improve the above problems by providing a synchronizer gear sleeve for automobile transmission. SUMMARY

[0005] The utility model discloses a kind of synchronizer gear sleeves for automobile transmission, to solve the problems presented in the above background technology.

[0006] To achieve the above object, the utility model provides the following technical scheme:

[0007] A kind of synchronizer gear sleeve for automobile transmission, including gear sleeve body, recess is set in the outer wall of the gear sleeve body, heat-conducting metal ring is provided in the inside of the recess, first heat dissipation hole is set in the inside of the heat-conducting metal ring, second heat dissipation hole is uniformly set in the front of the heat-conducting metal ring, third heat dissipation hole is uniformly set in the front of the gear sleeve body, the inside of the gear sleeve body is provided with tooth body, the outside of the gear sleeve body is sleeved with protective sleeve, through hole is uniformly set in the outside of the protective sleeve.

[0008] As the preferred scheme of the utility model, the recess and the shape structure of heat-conducting metal ring are matched, and heat-conducting metal ring and gear sleeve body are hot-pressed integrally formed.

[0009] As the preferred scheme of the utility model, the number of first heat dissipation hole and second heat dissipation hole is same, and first heat dissipation hole and second heat dissipation hole are mutually connected.

[0010] As the preferred scheme of the utility model, the position of third heat dissipation hole and second heat dissipation hole corresponds, and the number of third heat dissipation hole and second heat dissipation hole is same.

[0011] As the preferred scheme of the utility model, the protective sleeve is made of heat-resistant and wear-resistant rubber material, and the protective sleeve is fixedly connected with the tooth sleeve body.

[0012] As the preferred scheme of the utility model, the shape structure of the through hole is rectangular, and the number of the through hole is same as the number of the third heat dissipation hole.

[0013] Compared with the prior art, the utility model has the beneficial effects that:

[0014] 1、In the utility model, the heat-conducting metal ring, the first heat dissipation hole, the second heat dissipation hole and the third heat dissipation hole can increase the heat conduction and air flow when the tooth sleeve body generates heat during use, thereby achieving heat dissipation of the tooth sleeve body and improving the heat dissipation effect. BRIEF DESCRIPTION OF DRAWINGS

[0015] Fig. 1 It is the overall appearance structure schematic view of the utility model;

[0016] Fig. 2 It is the tooth sleeve body appearance structure schematic view of the utility model;

[0017] Fig. 3 It is the heat-conducting metal ring appearance structure schematic view of the utility model.

[0018] In the drawing: 1, tooth sleeve body;2, recess;3, heat-conducting metal ring;4, first heat dissipation hole;5, second heat dissipation hole;6, third heat dissipation hole;7, tooth body;8, protective sleeve;9, through hole. DETAILED DESCRIPTION

[0019] The technical scheme in the embodiments of the utility model will be clearly and completely described below in conjunction with 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, and all other embodiments obtained by the ordinary skilled in the art based on the embodiments in the utility model without creative labor belong to the protection scope of the utility model.

[0020] The technical scheme in the embodiments of the utility model will be clearly and completely described below in conjunction with 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, and all other embodiments obtained by the ordinary skilled in the art based on the embodiments in the utility model without creative labor belong to the protection scope of the utility model.

[0021] For the convenience of understanding the utility model, the utility model will be described more fully below with reference to the relevant drawings, several embodiments of the utility model are given, but the utility model can be realized in many different forms, and is not limited to the embodiments described herein, on the contrary, the purpose of providing these embodiments is to make the disclosure of the utility model more thorough and comprehensive.

[0022] It should be noted that when an element is referred to as being "fixed" to another element, it can be directly on the other element or there can be intervening elements, and when an element is referred to as being "connected" to another element, it can be directly connected to the other element or there can be intervening elements, the terms "vertical", "horizontal", "left", "right" and similar terms used herein are for purposes of illustration only.

[0023] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which the utility model belongs, the terminology used in the specification of the utility model herein is only for the purpose of describing specific embodiments, and is not intended to limit the utility model, the term "and / or" used herein includes any and all combinations of one or more relevant listed items.

[0024] Embodiments, please refer to Figs. 1-3 The utility model provides a technical scheme:

[0025] A synchronizer sleeve for automobile transmission, including tooth cover main part 1, the outer wall of tooth cover main part 1 is set with recess 2, the inside of recess 2 is provided with heat conduction metal ring 3, the inside of heat conduction metal ring 3 is set with first heat dissipation hole 4, the front of heat conduction metal ring 3 is evenly set with second heat dissipation hole 5, the front of tooth cover main part 1 is evenly set with third heat dissipation hole 6, the inside of tooth cover main part 1 is provided with tooth body 7, tooth cover main part 1 is sleeved with protective sleeve 8 outside, the outside of protective sleeve 8 is evenly set with through hole 9.

[0026] In the embodiment, the groove 2 is matched with the outer shape structure of the heat-conducting metal ring 3, and the heat-conducting metal ring 3 is integrally formed with the tooth sleeve body 1 by hot pressing, the number of the first heat dissipation holes 4 is the same as that of the second heat dissipation holes 5, and the first heat dissipation holes 4 and the second heat dissipation holes 5 are connected with each other in penetration, the third heat dissipation holes 6 correspond to the positions of the second heat dissipation holes 5, and the number of the third heat dissipation holes 6 is the same as that of the second heat dissipation holes 5, the protective sleeve 8 is made of heat-resistant and wear-resistant rubber material, and is fixedly connected with the tooth sleeve body 1, the shape of the through hole 9 is rectangular, and the number of the through hole 9 is the same as that of the third heat dissipation holes 6, when the tooth sleeve body 1 generates heat during use, the heat-conducting metal ring 3, the first heat dissipation holes 4, the second heat dissipation holes 5 and the third heat dissipation holes 6 can increase the heat conduction and air flow to dissipate heat of the tooth sleeve body 1, so that the heat dissipation effect of the tooth sleeve body 1 is better.

[0027] The working process of the utility model is: when the tooth sleeve body 1 generates heat, the heat is discharged to the outside of the tooth sleeve body 1 through the heat-conducting metal ring 3, the first heat dissipation holes 4, the second heat dissipation holes 5 and the third heat dissipation holes 6, when the tooth sleeve body 1 generates heat during use, the heat-conducting metal ring 3, the first heat dissipation holes 4, the second heat dissipation holes 5 and the third heat dissipation holes 6 can increase the heat conduction and air flow to dissipate heat of the tooth sleeve body 1, so that the heat dissipation effect of the tooth sleeve body 1 is better.

[0028] Although the embodiments of the utility model have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and variations can be made to these embodiments without departing from the principles and spirits of the utility model, and the scope of the utility model is defined by the appended claims and their equivalents.

Claims

1. A synchronizer sleeve for an automotive transmission, comprising a sleeve body (1), characterized in that: The outer wall of the tooth sleeve body (1) is provided with a groove (2), and a heat-conducting metal ring (3) is provided inside the groove (2). A first heat dissipation hole (4) is provided on the inner side of the heat-conducting metal ring (3). A second heat dissipation hole (5) is uniformly provided on the front side of the heat-conducting metal ring (3). A third heat dissipation hole (6) is uniformly provided on the front side of the tooth sleeve body (1). A tooth body (7) is provided on the inner side of the tooth sleeve body (1). A protective sleeve (8) is fitted on the outer side of the tooth sleeve body (1). A through hole (9) is uniformly provided on the outer side of the protective sleeve (8).

2. The synchronizer sleeve for an automotive transmission according to claim 1, characterized in that: The groove (2) is adapted to the shape and structure of the heat-conducting metal ring (3), and the heat-conducting metal ring (3) and the tooth sleeve body (1) are integrally formed by hot pressing.

3. The synchronizer sleeve for an automotive transmission according to claim 1, characterized in that: The number of the first heat dissipation hole (4) and the second heat dissipation hole (5) are the same, and the first heat dissipation hole (4) and the second heat dissipation hole (5) are interconnected.

4. A synchronizer sleeve for an automotive transmission according to claim 1, characterized in that: The third heat dissipation hole (6) is positioned corresponding to the second heat dissipation hole (5), and the number of the third heat dissipation hole (6) and the second heat dissipation hole (5) is the same.

5. A synchronizer sleeve for an automotive transmission according to claim 1, characterized in that: The protective sleeve (8) is made of heat-resistant and wear-resistant rubber material, and the protective sleeve (8) is fixedly connected to the tooth sleeve body (1).

6. A synchronizer sleeve for an automotive transmission according to claim 1, characterized in that: The through hole (9) has a rectangular shape, and the number of through holes (9) is the same as the number of the third heat dissipation holes (6).

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