JPH04127427U - transmission synchronizer - Google Patents

Abstract

(57) [Summary] [Purpose] The purpose is to improve durability by efficiently guiding lubricating oil to the cone surface of a double synchro mechanism. [Structure] A connecting groove 11 is formed at the end of the inner ring 8 on the connecting side with the outer ring 9, and a connecting groove 11 is formed at the end of the outer ring 9 on the connecting side with the inner ring 8. A connecting claw portion 12 is formed. A lubricating oil groove 14 is formed on the inner circumferential surface of the inner ring 8 so as to extend in an annular manner in the circumferential direction and communicate with the connecting groove 11 . In this way, lubricant groove 1
4, the lubricating oil guided from the thrust side end surfaces of the gears 4 and 5 can be efficiently transferred to the cone surfaces 15 and 16.
The cone surfaces 15 and 16 can be effectively lubricated.

Description

[Detailed explanation of the idea]

0001

[Industrial application field]

The present invention relates to a synchronizing device for a transmission, and in particular, the invention relates to a synchronizing device for a transmission. This invention relates to a cone surface lubrication structure of a double synchro mechanism that is connected.

0002

[Conventional technology]

Conventionally, as a synchronizer for a transmission, an inner ring and an outer ring were connected. Some devices have a double synchronization mechanism (Japanese Unexamined Patent Publication No. 62-52241, (See Kaihei 1-12043, etc.) The inner ring and the outer ring refer to a plurality of rings at one end of the inner ring. Connecting grooves formed at multiple locations on the inner circumferential surface of one end of the outer ring. The connection is made by engaging the formed connection claws.

0003

[Problem that the idea aims to solve]

However, in the conventional double synchronization mechanism as mentioned above, This is the contact surface between the outer circumferential surface of the inner ring and the inner circumferential surface of the double cone, which is the intermediate cone. Contact surface between the inner cone surface and the inner peripheral surface of the outer ring and the outer peripheral surface of the double cone It is difficult to lubricate the outer cone surface, which may cause seizure, etc. There was a problem with the durability of the double cone.

0004 Therefore, in view of the above-mentioned conventional problems, the present invention has been developed using a double synchronization mechanism. By implementing measures that can efficiently guide lubricating oil to the cone surface that The purpose is to improve sexual performance.

[0005]

[Means to solve the problem]

Therefore, the synchronizer of the transmission of the present invention has multiple positions at one end of the inner ring. The connecting groove formed at the outer ring is formed at multiple positions on the inner circumferential surface of one end of the outer ring. A double synchronized mechanism is created by connecting both rings by inserting the connecting claw that has been created. In the synchronizing device for a transmission having A lubricating oil groove is formed which is connected to the connecting groove and communicates with the connecting groove.

[0006]

[Effect]

In such a configuration, the double synchronizer mechanism is lubricated by lubricating oil from the outer peripheral surface. Lubricating by splashing and lubricating oil led from the inner peripheral surface to the thrust side end face of the gear. You can expect lubrication. Then, an annular lubricating oil groove is formed on the inner circumferential surface of the inner ring to communicate with the connecting groove. As a result, the lubricating oil led from the thrust side end face of the gear can be efficiently and efficiently distributed. It can be incorporated into the surface of the screen.

[0007] In other words, among the lubricating oil that has been scattered and attached to the inner circumferential surface of the inner ring due to centrifugal force, The lubricating oil flowing toward the inner end of the double synchronizer mechanism collects in the lubricating oil groove. Accumulated moisture Until the lubricant overflows from the lubricant groove, the only outlet is the inner ring. It flows into the connecting groove on the inner peripheral surface. The lubricating oil that has flowed into this connecting groove is Directly guided to the inner cone surface from the deep part of the connecting groove on the inner cone surface. Ru. Furthermore, the lubricating oil that has flowed into the connecting groove is also guided to the outer cone surface.

[0008] As described above, the lubricating oil guided from the thrust side end face of the gear is efficiently transferred to the cone surface. As a result, lubrication of the inner cone surface and outer cone surface is effective. It can be done accurately.

[0009]

【Example】

Hereinafter, embodiments of the present invention will be described based on the drawings. FIG. 1 is a diagram showing an embodiment of a synchronizing device for a transmission according to the present invention. A clutch hub 2 is connected to the clutch hub 2, and the clutch hub 2 is spline-fitted to the shaft. a hub sleeve 3 that is slidable in the direction; and a gear 4 that is loosely fitted to the shaft 1. , 5 are provided with fixed gear splines 6, 7.

0010 Further, an inner ring is provided on the side of the clutch hub 2 and has an engaging surface on the outer peripheral surface. gear 8, and a double cone which is an intermediate cone that rotates integrally with the gear splines 6 and 7. The cone 10 is connected to the inner ring 8 and slides the hub sleeve 3. By holding the double cone 10 between the inner ring 8 and the inner ring 8 during operation, An outer ring 9 synchronizes the gear splines 6, 7 and the clutch hub 2. It is provided.

[0011] Here, if FIG. 2 is also referred to, the connection side of the inner ring 8 with the outer ring 9 A connecting groove 11 is formed at the end. This connecting groove 11 is arranged in the circumferential direction. They are formed at three locations spaced apart by 20 degrees. On the other hand, if FIG. 3 is also referred to, the connecting side end of the outer ring 9 with the inner ring 8 A connecting claw portion 12 is formed in the portion. That is, the connection side end of the outer ring 9 The flange portion 13 has a shape except for a portion of the inner peripheral surface where a detent portion (not shown) is located. It is formed to protrude from the inner circumferential surface of this flange portion 13 toward the center, and extends in the circumferential direction. It is formed at three locations angularly spaced apart by 120 degrees.

0012 Here, on the inner circumferential surface of the inner ring 8, there is provided an annular ring extending in the circumferential direction for the connection. A lubricating oil groove 14 communicating with the groove 11 is formed. Note that the connecting groove 11 of the inner ring 8 slightly touches the inner cone surface 15. The depth is set so that Next, the functions and effects of this configuration will be explained.

[0013] The double synchronizer mechanism is lubricated by lubricant droplets from the outer circumferential surface and by internal lubrication. Lubrication by lubricating oil led from the thrust side end face of gears 4 and 5 from the circumferential side is expected. I can wait. A lubricating oil groove 14 communicating with the connecting groove 11 is provided on the inner circumferential surface of the inner ring 8. By forming the It can be efficiently incorporated into the cone surfaces 15 and 16.

[0014] In other words, the lubricant oil that has been scattered and adhered to the inner peripheral surface of the inner ring 8 due to centrifugal force. The lubricating oil flowing toward the inner end of the double synchronizer mechanism collects in the lubricating oil groove 14. Accumulation Until the lubricating oil overflows from the lubricating oil groove 14, it is used as the only outlet. The water flows into the connecting groove 11 on the inner circumferential surface of the inner ring 8 . Flows into this connecting groove 11 The lubricating oil is directly supplied from the deep part of the connecting groove 11 on the inner cone surface 15. is guided to the inner cone surface 15. In addition, the lubricating oil that has flowed into the connecting groove 11 , guided to the outer cone surface 16 using the flange portion 13 of the outer ring 9 as a guide. It will be done.

[0015] As described above, the lubricating oil introduced from the thrust side end faces of gears 4 and 5 can be efficiently coated. As a result, the inner cone surface 15 and the outer cone surface 15 Both rings 8 and 9 can effectively lubricate the cone surface 16 and prevent seizure. And the durability of the double cone 10 can be improved. Note that the structure of the above embodiment does not indicate any structural limitations of the present invention; Modifications are free within the scope stated in the claims for utility model registration.

[0016]

[Effect of the idea]

As explained above, according to the transmission synchronizer of the present invention, the double synchronizer The inner circumferential surface of the inner ring extends in an annular manner in the circumferential direction on the inner circumferential surface of the inner ring in the so as to form a lubricating oil groove that communicates with the concave groove for connection with the outer ring formed on the outer ring. Therefore, the lubricating oil can be efficiently taken into the cone surface, and the cone surface is lubricated. can be carried out effectively and has a great practical effect of improving the durability of both rings, etc. It is something.

[Brief explanation of drawings]

[Fig. 1] A sectional view showing an embodiment of a synchronizing device for a transmission according to the present invention.

[Figure 2] Diagrams showing the structure of the inner ring, (A) is a front sectional view, and (B) is a side view.

[Figure 3] Diagrams showing the structure of the outer ring, (A) is a front sectional view, and (B) is a side view.

[Figure 4] Enlarged view of part A in Figure 2

[Explanation of symbols]

8 Inner ring 9 Outer ring 11 Connection groove 12 Connecting claw part 14 Lubricating oil groove

Claims (1)

[Scope of utility model registration request] Claim: 1. Connecting claws formed at multiple positions on the inner circumferential surface of one end of the outer ring are inserted into connecting grooves formed at multiple positions on one end of the inner ring, In a synchronizing device for a transmission having a double synchronizing mechanism formed by connecting both rings, on the inner peripheral surface of the inner ring,
A synchronizing device for a transmission, characterized in that a lubricating oil groove is formed in an annular manner in a circumferential direction and communicating with the connecting groove.