阅读说明：本技术 具有外部换挡质量的变速器 (Transmission with external shift mass ) 是由 弗兰克·普里克肯 于 2018-11-27 设计创作，主要内容包括：本发明涉及一种用于汽车的变速器,包括多个挡位、壳体(1)、被所述壳体(1)包围的内腔、至少一个位于所述内腔中的用来切换挡位的换挡离合器,和换挡装置(10),所述换挡装置用于将在所述壳体(1)以外进行作用的用于换挡的外操纵力传递至所述换挡离合器,其中所述换挡装置(10)具有：至少一个位于所述内腔中的内换挡部件；第一传递元件(11a),其穿过设置在所述壳体中的第一开口(5)且用于将用于切换所述挡位的外操纵力传递至所述内换挡部件；布置在所述壳体以外的换挡质量(21),所述换挡质量在切换所述挡位的过程中进行运动。本发明的特征在于,设有不同于所述第一传递元件(11a)的连接元件(20),通过所述连接元件,所述换挡质量(21)与所述内换挡部件连接,其中所述连接元件(20)通过所述壳体(1)中不同于所述第一开口的第二开口(6)而卡入所述内腔。(The invention relates to a transmission for a motor vehicle, comprising a plurality of gears, a housing (1), an interior space enclosed by the housing (1), at least one shifting clutch located in the interior space for shifting gears, and a shifting device (10) for transmitting an external actuating force acting outside the housing (1) for shifting gears to the shifting clutch, wherein the shifting device (10) has: at least one inner shift member located within the interior cavity; a first transmission element (11a) which passes through a first opening (5) provided in the housing and is used for transmitting an external actuating force for shifting the gear to the internal shifting component; a shift mass (21) arranged outside the housing, said shift mass moving during shifting of the gear. The invention is characterized in that a connecting element (20) is provided, which is different from the first transmission element (11a), by means of which the shift mass (21) is connected to the inner shift part, wherein the connecting element (20) engages into the interior space through a second opening (6) in the housing (1), which is different from the first opening.)

1. A manual transmission for a motor vehicle, comprising a plurality of gears, a housing (1), an interior space enclosed by the housing (1), at least one shifting clutch located in the interior space for shifting gears, and a shifting device (10) for transmitting an external actuating force acting outside the housing (1) for shifting gears to the shifting clutch, wherein the shifting device (10) has:

at least one inner shift member located within the interior cavity,

a first transmission element (11a) which passes through a first opening (5) provided in the housing and is used for transmitting an external actuating force for shifting the gear to the internal shifting component,

a shift mass (21) arranged outside the housing, which shift mass moves during shifting of the gear,

characterized in that a connecting element (20) is provided which is different from the first transmission element (11a) and by means of which the shift mass (21) is connected to the inner shift part, wherein the connecting element (20) is snapped into the interior space through a second opening (6) in the housing (1) which is different from the first opening.

2. Transmission according to claim 1, characterized in that the housing (1) has a substantially cylindrical basic shape with a first end face, a second end face and a side face, wherein one of the two openings (5, 6) is arranged on the first end wall and the other of the two openings (6, 5) is arranged on the side face, or wherein the two openings (5, 6) are arranged at a distance from each other on the side face.

3. Transmission according to claim 1 or 2, characterized in that the inner shift element is constructed as a shift rail (11) or at least as an inner rail section (11b) of the shift rail (11).

4. Transmission according to claim 3, characterized in that a plurality of mutually parallel shaft bodies are rotatably supported in the housing (1), wherein the shift rails are substantially parallel to the shaft bodies.

5. Transmission according to claim 3 or 4, characterized in that the shifting device (10) is constructed such that an axial movement of the shift rail (11) or a rotational movement of the shift rail (11) causes a rotation of the connecting element (20) and a rotational movement of the shift mass (21).

6. The transmission according to any one of claims 1 to 5, characterized in that the first transmission element (11a) has a receptacle (12) for an external actuating force for shifting the gear.

7. Transmission according to claim 6, characterized in that an external operating force for selecting another gear can also be transmitted to the housing part (12).

8. The transmission according to claim 6, characterized in that a second transmission element is provided which passes through a third opening in the housing and is used for transmitting an external operating force for selecting another gear to the internal shifting component.

9. The transmission according to any one of claims 3 to 7, characterized in that the first transmission element (11a) is integrally formed with the inner slide section (11 b).

Technical Field

The invention relates to a manual transmission for a motor vehicle, wherein the manual transmission comprises a plurality of gears, a housing, an interior surrounded by the housing, at least one shifting clutch located in the interior for shifting gears, and a shifting device for transmitting an external actuating force acting outside the housing for shifting gears to the shifting clutch.

Background

EP 1686293 a1 discloses such a manual transmission, for example. The shifting device of such a transmission has an inner shifting element located in an interior of the shifting transmission and a first transmission element for transmitting an external actuating force for shifting to the inner shifting element. A shift mass (schaltmesse) is also provided, which is arranged outside the housing and moves during shifting. The inertia of the shift mass is used to smooth out force peaks that may occur during shifting, i.e. during engagement and disengagement. The first transmission element can also connect the outer shift mass with the inner shift element. Other shifting transmissions are also disclosed in which the transmission element passes through a first opening provided in the housing.

The first transmission element of EP 1686293 a1 has a receptacle in the form of a ball head which can be connected together with a shift lever or the like in order to transmit external actuating forces to the first transmission element. In motor vehicles, the installation space for the transmission is limited in principle and many additional requirements need to be met, so that it is difficult to meet all requirements (in particular packaging requirements) in the case of a transmission in which the shift masses are associated with transmission elements and receptacles for transmitting external operating forces.

Disclosure of Invention

In view of the above, it is an object of the present invention to provide a manual transmission which is flexible in design, in particular in the design of the shifting device.

The solution of the invention to achieve the object is the combination of features according to claim 1. Embodiments of the invention are referred to in the dependent claims.

According to the invention, the shifting device has a connecting element, which is different from the first transmission element, by means of which a shifting mass arranged outside the housing or an outer shifting mass is connected to the inner shifting part, wherein the connecting element passes through a second one of the openings, which is different from the first opening. This achieves a spatial separation of the first transfer element from the connecting element. Thus, both can snap into the cavity from the outside through the housing at different points. The first transmission element for transmitting the external actuating force for shifting gears to the inner shifting part is spatially separated from the connecting element for connecting the shift mass to the inner shifting part, with which spatial separation the transmission according to the invention can have an additional degree of freedom in terms of construction, which is advantageous for different packaging requirements.

The housing may have a substantially cylindrical basic shape comprising a first end face, a second end face and a side face connecting the first end face and the second end face together, wherein one of the two openings is arranged on the first end wall and the other of the two openings is arranged on the side face. In one embodiment, the first opening for the first transfer element to pass through is arranged on the first end wall, while the second opening for the connecting element is provided on the side face. The reverse arrangement may also be employed. The first opening and the second opening may be arranged on the side surface at a certain distance.

The inner shift element can be designed as a shift rail. The shift rail is mounted entirely within the interior cavity of the transmission. Alternatively, the inner shift element can also form only the inner slide section of the shift slide, wherein in this case the outer slide section of the shift slide projects from the housing.

In one embodiment, a plurality of mutually parallel shaft bodies are rotatably mounted in the housing, wherein the shift rail is substantially parallel to the shaft bodies. This may be referred to, for example, as a so-called inline gear change transmission, the input shaft of which is arranged coaxially with the output shaft. The auxiliary shaft is spaced from the coaxial shafts by an axial distance. The first opening for the first transmission element can be provided on an end face of a housing on which a driven device is provided which is connected to the output shaft.

The shifting device can be designed such that an axial displacement of the shift rail causes a co-or counter-axial movement of a shifting clutch sliding sleeve mounted on one of the shaft bodies in the housing. Thus, the gear can be engaged or disengaged through the axial movement of the gear shifting slide rod. Alternatively, it is also possible for the rotation of the shift rail to cause an axial movement of the sliding sleeve, so that a gear is engaged or disengaged by the rotation of the shift rail.

Preferably, the axial movement of the shift rail causes a rotation of the connecting element and a rotational movement of the shift mass. The rotation is preferably effected about an axis of rotation which coincides with the central axis of the second opening. The rotational moment of inertia of the shift mass can be achieved by means of the distance of the shift mass from the rotational axis. The inertia of the shift mass is used to smooth the shifting operation transmitted by the transmission element overall in the case of occurring force peaks by the interaction of the connecting element with the inner shift element or the shift rail.

The rotational movement of the shift rail can also cause a rotation of the connecting element and a rotational movement of the shift mass. The speed of the rotational movement of the shift mass may correspond to or differ from the speed of the rotational movement of the shift rail. Preferably, the rotational speed of the shift mass is higher (1.5 times or more) than the rotational speed of the shift rail, so that the inertia of the shift mass is fully effective.

The first transfer elementThe element may have a receptacle for an external actuating force for shifting the gear. The receiving part may be, for example, a truncated ball snapA ball head of the ring buckle. The receiving part can also be a hole in which a pull rope or a shift lever can be hooked.

In one embodiment, an actuating force for selecting a further gear can also be transmitted to the receptacle part of the first transmission element. For example, an axial movement of the first transmission element can cause a gear shift, while a rotation of this transmission element selects another gear of the gear shift transmission. If another gear is selected, the inner shifting element located in the interior changes its position (here the angle of rotation) such that it no longer interacts with the aforementioned shifting clutch (in particular its sliding sleeve), but with another shifting clutch also located in the interior of the transmission.

Alternatively, a second transmission element can be provided, which passes through a third opening in the housing and is used to transmit the actuating force for selecting the further gear to the internal shifting component.

The first transmission element and the inner slide section of the shift slide can be formed integrally or as a solid mechanical unit. The transmission element can also be referred to as an outer slide rod section of the shift slide rod. The shift rail extends through a first opening in the housing and extends from the outside through the housing into the transmission interior.

Drawings

The present invention will be described in detail with reference to the embodiments shown in the drawings. In the figure:

FIG. 1 is a transmission of the present invention; and

fig. 2 shows a part of a shifting device of the transmission of fig. 1.

Detailed Description

Fig. 1 is a perspective view of a multi-gear transmission with a housing 1. The housing 1 has an engine-side end 2 and a driven-side end 3. The housing 1 encloses an inner cavity of the transmission in which the input shaft, the output shaft and in this embodiment the layshaft (all covered) are arranged. These shaft bodies are parallel to each other, with the input shaft being arranged coaxially with the output shaft. These shafts extend from the engine-side end 2 to the driven-side end 3.

The input shaft is connected to an engine (not shown) via a clutch, and the output shaft is connected to the driven device 4. A plurality of shifting clutches are arranged in the inner cavity and are used for engaging and disengaging (shifting) gears of the gear shifting transmission. Each shifting clutch usually has a sliding sleeve, by means of which shifting takes place by axial displacement.

It is necessary to shift gears with an external actuating force acting outside the housing 1, wherein

This external actuating force is transmitted via the shifting device to the shifting clutch or its sliding sleeve located in the interior space. Fig. 2 shows the components of this shifting device, which are designated as a whole by 10.

The housing 1 has a first opening 5 at the output-side end 3, through which a shift rail 11 of a shifting device 10 passes. The shift rail 11 has a ball 12 at the outer end, by means of which an external actuating force for shifting can be transmitted to the shift rail 11. As shown in particular in fig. 2, the shift rail 11 has an outer rail section 11a and an inner rail section 11b located in the interior space. Fig. 1 shows only the outer slide portion 11a with the ball head 12. The bearings of the shift rail 11 are denoted 13, 14, 15, wherein the bearing 13 coincides with the first opening 5. The outer slide rod section 11a, which can also be referred to as a first transmission element, passes through the first opening 5 and transmits an external actuating force for a gear change to the inner slide rod section 11 b. The transmission element is thus formed integrally with the shift rail.

By means of an axial movement (see double arrow 16), the axial orientation of the sliding sleeve of the selected gear, which is subsequently shifted out, can be changed by means of a shift finger 17 which snaps into a recess (not shown) of the shift fork. Furthermore, a guide pin 18 is formed on the shift rail 11, which engages in a guide slide (not shown).

The shift rail 11 can also be rotated about its longitudinal axis, see double arrow 19. By rotating the shift rail 11, the position or height of the shift finger 17 is changed, so that the shift finger 17 engages with different shift forks. This allows the selection of a further shift fork, a further sliding sleeve, i.e. a further gear, by rotating the shift rail 11. In the case of this further gear being selected by rotation of the shift rail 11, this gear can be shifted out by an axial movement 16 of the shift rail 11. The gear can be selected by means of the shift rail 11, which can thus also be referred to as a shift-select rail. By the interaction of the guide pin 18 with the stationary guide carriage, certain positions of the shift rail can only be realized in terms of axial orientation and angle of rotation.

The shifting device 10 also has a connecting element 20, which connects the outer shift mass 21 (here formed by the partial mass 21a and the partial mass 21 b) to the shift fork 11. The connecting element 20 has a flange 22, which serves to fix the connecting element 20 to the housing 1.

Fig. 1 shows the outer part of a connecting element 20, which has partial masses 21a and 21b and a flange 22. The flange 22 covers the second opening 6, into which the rotary slide 23 of the connecting element 20 snaps. At the end located in the interior, the rotary slide 23 is connected in a rotationally fixed manner to a crank arm 24 which carries a peg 25. The peg 25 engages in a U-shaped recess 26 fixed to the shift rail 11. By the interaction of the peg 25 with the U-shaped recess 26, the axial movement 16 of the shift rail 11 causes the connecting element 20 to rotate about the rotational axis 27. On the basis of their radial distance, the partial masses 21a, 21b cause a rotational moment of inertia, so that the shifting movement (axial displacement 16) of the shift rail 11 has a certain mass inertia in order to better overcome force peaks occurring during shifting.

An external actuating force for shifting gears and an external actuating force for selecting gears are transmitted into the transmission interior via the ball head (12) and the first opening 5 of the housing 1. The shift mass 21 is provided and connected to the shift rail 11 via a second opening, which is different from the first opening 5 and is arranged on another outer surface of the housing 1. The first opening 5 is located on the driven side extremity 3, while the second opening 6 is arranged between the extremity 3 and the engine side extremity 2 on the side 7 of the transmission 1.

Description of the reference numerals

1 casing

2 engine side end

3 driven side end

4 driven device

5 first opening

6 second opening

7 side surface

10 gearshift

11 shift slide bar

11a outer slide segment/first transfer element

11b inner slide bar section

12 bulb (containing parts)

13 bearing

14 bearing

15 bearing

16 double arrow (axial movement)

17 shift finger

18 guide pin

19 double arrow (rotation direction)

20 connecting element

21 shift quality

21a sub-mass

21b sub-mass

22 flange

23 rotating slide bar

24 crank arm

25 stud

26U-shaped notch