KR101262129B1

KR101262129B1 - Fastening device for transmission

Info

Publication number: KR101262129B1
Application number: KR1020100118630A
Authority: KR
Inventors: 정병우; 장래혁
Original assignee: 현대 파워텍 주식회사
Priority date: 2010-11-26
Filing date: 2010-11-26
Publication date: 2013-05-14
Also published as: KR20120057065A

Abstract

The present invention relates to a coupling device for a transmission, comprising: a first output shaft coupled to a transmission to transmit power; a housing coupled to a case surrounding the transmission; 1 propeller shaft.
In the coupling device for a transmission according to the present invention, power is transmitted to the first propeller shaft through the first output shaft, thereby enabling rear wheel driving of the vehicle.

Description

Transmission device for transmissions {FASTENING DEVICE FOR TRANSMISSION}

The present invention relates to a coupling device for a transmission, and more particularly, to a coupling device for a transmission having limited design changes of the transmission even when various types of propeller shafts are coupled to the transmission.

In general, automobiles adopt front wheel drive or rear wheel drive. Front wheel drive has the advantage of providing the engine power directly to the front wheels, compact engine design, light weight, and a large interior space. On the other hand, the rear wheel drive has the advantage of good performance and good weight distribution as the rear wheel is the power and the front wheel is the steering, and the propeller shaft extends from the engine to the rear wheel.

In a rear wheel drive vehicle including a four wheel drive, a propeller shaft coupled to the output shaft of the transmission transmits power to the rear axle.

To connect the propeller shaft to the output shaft, there are a flange yoke method and a slip yoke method.

The flange yoke method has the advantage that the output shaft rotation speed is constant and the durability is relatively high regardless of the installation angle, and the slip yoke method has the advantage of transmitting a large capacity torque.

The technical structure described above is a background technique for assisting the understanding of the present invention, and does not mean the prior art widely known in the technical field to which the present invention belongs.

Conventionally, either the flange yoke method or the slip yoke method is selected according to the use to couple the transmission and the propeller shaft.

However, since the design of the transmission should be changed according to the coupling method of the transmission and the propeller shaft, there is a problem that it is difficult to use the two coupling methods in combination.

Therefore, there is a need to improve this.

The present invention has been made to improve the above problems, and an object of the present invention is to provide a coupling device for a transmission in which the assembly is improved even if the coupling method of the propeller shaft is changed.

In order to achieve the above object, the present invention includes a first output shaft coupled to the transmission for transmitting power; A housing coupled to the case surrounding the transmission; And a first propeller shaft interposed between the first output shaft and the housing and engaged with the first output shaft.

The housing is inserted into the inside of the case; And an assembly extending from the insert and screwed to the fastener of the case.

The inner surface of the insert is characterized in that the bush for supporting the first propeller shaft is provided.

The housing is characterized in that the cover is mounted.

In order to achieve the above object, the present invention includes a second output shaft coupled to the transmission for transmitting power; A flange portion coupled to the second output shaft; And it provides a coupling device for a transmission comprising a second propeller shaft coupled to the flange portion.

Coupling device for a transmission according to the invention is characterized in that it further comprises a sealing portion that is coupled to the flange portion surrounding the end of the case surrounding the transmission.

In the coupling device for a transmission according to the present invention, the first output shaft is coupled to the transmission, and the first propeller shaft is connected to the first output shaft, whereby power is transmitted to the first propeller shaft.

The coupling device for a transmission according to the present invention is provided with a bush on the inner side of the housing to absorb the impact with the first propeller shaft.

In the coupling device for a transmission according to the present invention, the second output shaft is coupled to the transmission, and the second propeller shaft is connected to the second output shaft, whereby power is transmitted to the second propeller shaft.

The coupling device for a transmission according to the present invention has the effect of changing the coupling method between the transmission and the propeller shaft through simple parts replacement.

1 is a view schematically showing a coupling device for a transmission according to a first embodiment of the present invention.
2 is a view schematically showing a coupling device for a transmission according to a second embodiment of the present invention.

Hereinafter, with reference to the accompanying drawings will be described an embodiment of a coupling device for a transmission according to the present invention. In this process, the thicknesses of the lines and the sizes of the components shown in the drawings may be exaggerated for clarity and convenience of explanation. In addition, the terms described below are terms defined in consideration of the functions of the present invention, which may vary depending on the intention or custom of the user, the operator. Therefore, definitions of these terms should be made based on the contents throughout the specification.

1 is a view schematically showing a coupling device for a transmission according to a first embodiment of the present invention, Figure 2 is a view schematically showing a coupling device for a transmission according to a second embodiment of the present invention.

Referring to FIG. 1, the transmission coupling device 100 according to the first embodiment of the present invention includes a first output shaft 110, a housing 120, and a first propeller shaft 130. In the transmission coupling device 100, the transmission 150 and the first propeller shaft 130 are coupled in a slip yoke manner.

The first output shaft 110 is coupled to the transmission 150. The first output shaft 110 is coupled to the first propeller shaft 130 to transmit the power of the engine.

The housing 120 is coupled to the case 160 surrounding the transmission 150.

The first propeller shaft 130 is coupled to the first output shaft 110 through the housing 120. The first propeller shaft 130 is interposed between the first output shaft 110 and the housing 120 and surrounds the outer circumferential surface of the first output shaft 110 to be engaged with each other.

The housing 120 according to the embodiment of the present invention is provided with an insert 121 and a combination 122.

The insert 121 is provided in the case 160 surrounding the transmission 150 and is inserted into the opening 161 having one side opened. In addition, the coupling body 122 extends from the insertion body 121 and is coupled to the fastening body 162 of the case 160. The fastener 162 and the combiner 122 remain threaded or coupled by various other methods.

The inner surface of the insert 121 is provided with a bush 123. The bush 123 supports the first propeller shaft 130 engaged with the outer surface of the first output shaft 110 so that the first propeller shaft 130 is in direct contact with the insert 121 to give an impact. To prevent them.

The housing 120 is provided with a cover 124. The cover 124 is formed to surround the first propeller shaft 130 to block foreign matter from flowing into the housing 120.

On the other hand, the O-ring 129 is formed in the insert 121 to prevent the lubricant from leaking into the gap between the opening 161 and the insert 121.

In addition, an oil seal 128 is provided at the inner end of the insert 121. The oil seal 128 is in close contact with the outside of the first propeller shaft 130 to prevent the leakage of lubricant.

Therefore, in order to couple the transmission 150 and the first propeller shaft 130 in a slip yoke manner, the first output shaft 110 is coupled to the transmission 150. At this time, the case 160 surrounding the transmission 150 is mounted on a fixture such as an engine.

In the above state, the insert 121 of the housing 120 is inserted into the opening 161 of the case 160, and the assembly 122 extending from the insert 121 extends from the opening 161. The housing 120 is coupled to the case 160 by being coupled to the fastener 162 that is formed.

At this time, the first output shaft 110 is coupled to the first propeller shaft 130, the power of the engine is transmitted to the first propeller shaft 130 through the first output shaft 110, the first propeller shaft 130 The vehicle is moved by the driving of the rear wheel drive shaft connected with.

Meanwhile, referring to FIG. 2, the transmission coupling device 200 according to the second embodiment of the present invention includes a second output shaft 210, a flange part 220, and a second propeller shaft 230. The transmission coupling device 200 is coupled to the transmission 250 and the second propeller shaft 230 in a flange yoke manner.

The second output shaft 210 is coupled to the transmission 250. The second output shaft 210 is coupled to the second propeller shaft 230 to transmit the power of the engine.

The case 260 is formed to surround the transmission 250 and is coupled to a fixture such as an engine, and has an opening 261 open at one side thereof. The second output shaft 210 is coupled to the transmission 250 inside the opening 261.

The flange portion 220 is coupled to the second output shaft 210. The flange portion 220 rotates together with the second output shaft 210. The flange portion 220 is provided with a shaft coupling body 221 and a shaft coupling body 222.

The shaft coupling body 221 is inserted into the opened portion of the opening 261 to be coupled to the second output shaft 210. The shaft coupler 222 extends from the shaft coupler 221 and is positioned outside the case 260.

The second propeller shaft 230 is coupled to the shaft assembly 222 of the flange portion 220. The second propeller shaft 230 includes a body 231 into which an end of the second output shaft 210 is inserted, and an extension 232 extending from the body 231 and coupled to the shaft assembly 222.

The shaft coupling body 222 and the extension body 232 are coupled to each other by a fixing means such as a screw in a state in contact with each other, or remain coupled by various other ways.

The transmission coupling device 200 according to the second embodiment of the present invention is further provided with a sealing part 240. The sealing portion 240 is coupled to the flange portion 220 and formed to surround the end of the case 260 to block foreign matter from entering the case 260.

Meanwhile, the nut 211 is coupled to the second output shaft 210. The nut 211 supports the shaft assembly 221 of the flange portion 220.

An oil seal 271 is provided between the shaft coupling body 221 and the second output shaft 210 to prevent lubricant leakage, and between the shaft coupling body 221 and the opening 261 of the case 260 prevents lubricant leakage. An oil seal 272 is provided.

Therefore, in order to couple the transmission 250 and the second propeller shaft 230 in a flange yoke manner, the second output shaft 110 is coupled to the transmission 250. At this time, the case 160 surrounding the transmission 250 is mounted to a fixture such as an engine.

In the above state, when the second output shaft 110 and the flange portion 220 are coupled, the power of the engine is transmitted to the second propeller shaft 230 through the second output shaft 210 and the second propeller shaft 230 The vehicle is moved by the driving of the rear wheel drive shaft connected to

On the other hand, the transmission (150, 250) may be the same in the transmission device (100, 200) according to the first and second embodiments of the present invention, the case 160 of the first embodiment is the transmission ( 250).

As described above, since the transmission coupling devices 100 and 200 according to the first and second embodiments are compatible with some parts, the coupling method of the slip yoke and the flange yoke method may be mixed through a few parts replacement.

That is, in a state in which the first propeller shaft 130 is assembled to the transmissions 150 and 250 via the first output shaft 110 by the slip yoke method according to the first embodiment, the transmissions 150 and 250 are coupled in the flange yoke manner. The following process is carried out.

First, after removing the first output shaft 110 and the first propeller shaft 130, the second output shaft 210 is coupled to the transmission (150, 250). Then, the flange unit 220 is coupled to the transmissions 150 and 250, and then the flange unit 220 and the second propeller shaft 230 are coupled.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it will be understood by those of ordinary skill in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined by the appended claims. I will understand.

Accordingly, the true scope of protection of the present invention should be defined by the following claims.

110: first output shaft 120: housing
130: first propeller shaft 150, 250: transmission
160 case 210: second output shaft
220: flange portion 230: second propeller shaft
240: sealed portion

Claims

A first output shaft coupled to the transmission to transmit power;
A housing coupled to the case surrounding the transmission; And
A first propeller shaft interposed between the first output shaft and the housing and engaged with the first output shaft,
The housing
An insert inserted into the case; And
And a combination extending from the insert and screwed to the fastener of the case.

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The method of claim 1,
A coupling device for a transmission, characterized in that the inner surface of the insert is provided with a bush for supporting the first propeller shaft.

The method of claim 1,
The coupling device for a transmission, characterized in that the cover is mounted on the housing.

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