RU2800743C1 - Gearbox transmission control device - Google Patents

Abstract

FIELD: vehicle transmissions.

SUBSTANCE: gearbox control device comprises a body with a connecting element to the controlled gearbox, an actuating element moving in the first direction to engage the gear and in the second direction different from the first direction to select the gearbox corridor. A piston rod passes through the body and engages with the actuating element. The device comprises an actuating piston for moving in the first direction and an actuating piston for moving in the second direction that are engaged and coaxially located with the piston rod. The piston rod is in rigid engagement with the actuating element moving relative to the axis of the piston rod in the first direction to engage the gear and in the second direction to select the gearbox corridor.

EFFECT: simplified design of the device.

9 cl, 9 dwg

Description

SUBSTANCE: invention relates to vehicle transmission, mainly to pneumatic transmission control devices in transmission.

Such control devices are in most cases used in automatic transmissions. Such control devices usually contain a large number of elements for engaging the appropriate gears in the controlled box. In most cases, two actuators are provided, one of which is used to select the shift corridor and the other to select gears. Various options for the implementation of mechanical paths, such control devices require, as a rule, a large structural space. The first disadvantage is already the size of such devices, and the second disadvantage of traditional designs is the difficulty in the necessary dismantling of components, for example, in the event of maintenance or malfunctions.

A gearbox control device is known (RU 2638063 C2, publ. 12/11/2017), containing a housing that has a connecting element on the side of attachment to the gearbox for connecting the control device to the controlled gearbox, and at least on one other side - at least one connecting element for the actuator, moreover, an actuator mounted on the housing is additionally provided) with the possibility of moving in the first direction (R1) to engage the gear and in a second direction (R2) different from the first direction (R1) to select the gearbox corridor , and a piston rod passing at least partially through the body is provided, which is engaged with the actuating element, installed with the possibility of rotation around the actuating axis, and the actuating element has a protrusion for engagement for turning, which enters the recess of the piston rod and passes against the pin actuating element from the base of the actuating element, and the actuating axis passes through the base between the protrusion and the pin, and the first latch is located on the base, and the second reciprocal latch is located on the body, so that the actuating element is made with the possibility of fixing on the body in the middle position, and in addition to the located on the side of the housing of the functional module, on the other side of the housing, the actuator is located as an additional functional module of the electronic control unit, which is in functional connection with the actuator. This design has proven itself, however, depending on the installation situation, it requires a lot of structural space due to the transversely mounted drives.

The object of the invention is to provide a control device for one or more gearboxes in a transmission, which would have a significantly more compact design, a smaller number of parts, and which would allow the replacement of individual elements in a simpler manner. In such a control device, the number of external cables and/or hoses should be minimized.

The technical result is to simplify the design of the control device, one or more gearboxes in the transmission.

This task, based on the control device, is solved by means of distinctive features. The following claims provide preferred embodiments of the invention.

A control device for at least one gearbox in a transmission, comprising a housing that has, on the side of attachment to the gearbox, a connecting element for connecting the control device to the controlled gearbox, an actuating element with the ability to move in the first direction (R2) to engage the gear and in a second direction (R2) different from the first direction (R1) to select the gearbox corridor, and a piston rod passing through the housing and engaged with the actuating element, the control device contains an actuating displacement piston in engagement and coaxially located with the piston rod in the first direction (R2) and an actuating piston moving in the second direction (R1), while the piston rod is in rigid engagement with the actuating element, which is movable relative to the axis of the piston rod in the first direction (R2) to engage the gear and in a direction different from the first (R2) second direction (R1) to select the transmission corridor.

The preferred variant is characterized by the fact that the actuating displacement piston is provided with helical grooves, which make it possible to rotate the piston rod relative to the axis of the piston rod in the second direction.

The preferred variant is characterized by the fact that the actuating displacement piston is made with the possibility of longitudinal reciprocating movement of the piston rod along the axis of the piston rod in the first direction (R2).

The preferred variant is characterized by the fact that the piston rod is made of a longitudinal (R2) movement piston rod and a rotary (R1) movement piston rod connected to each other.

The preferred variant is characterized by the fact that the connecting element for connecting the control device to the controlled gearbox is made in the form of a flange with holes.

The preferred variant is characterized in that the actuating element protrudes from the housing through an opening in the side of the housing for attachment to the gearbox and is made with the possibility of insertion into it.

The preferred variant is characterized in that the actuating element is adapted to interact with the gearshift device in the gearbox via the piston rod by means of a freely selectable gear ratio.

The preferred variant is characterized by the fact that in the housing there is a latch made with the possibility of fixing the actuating element.

The preferred variant is characterized by the fact that in order to fix the actuating element in the middle position, stops are installed in the housing, which interact with the corresponding displacement actuating pistons.

Below the invention is explained in more detail using two examples of its implementation with reference to the accompanying drawings, which show the following:

fig. 1 - general view of the control device;

fig. 2 - section of the control device;

fig. 3 is a view of the rotary motion piston of the control device;

fig. 4 - view of the control device with a connecting element, made in the form of a flange with holes;

fig. 5 is a general view of the control device in the preferred embodiment;

fig. 6 - view of the movement of the executive element of the control device;

fig. 7 is a sectional view of the control device in the preferred embodiment;

fig. 8 is a view of the rotary movement piston of the control device in the preferred embodiment;

fig. 9 is a view of a control device with a connecting element, made in the form of a flange with holes in the preferred embodiment.

In FIG. 1-4, the control device (1) contains a housing (2), which has a connecting element (3) on the side of connection to the gearbox for connecting the control device (1) to the controlled gearbox, an actuating element (4) with the ability to move in the first direction (R2) to engage the gear and in a second direction (R1) different from the first direction (R2) to select the gearbox corridor, and a piston rod (5) passing through the housing (2) engaged with the actuating element (4). The control device (1) contains engaged and coaxially located with the piston rod (5) the actuating piston of movement (6) in the first direction (R2) and the actuating piston of movement (7) in the second direction (R1), while the piston rod (5 ) is in rigid engagement with the actuating element (4), made with the possibility of moving relative to the axis (8) of the piston rod in the first direction (R2) to engage the gear and in the second direction (R1) different from the first direction (R2) to select the corridor of the box gears. The displacement actuating piston (7) is made with helical grooves (9) that enable the piston rod (5) to rotate relative to the piston rod axis (8) in the second direction (R1). At the same time, the displacement actuating piston (6) is made with the possibility of longitudinal reciprocating movement of the piston rod (5) along the axis (8) of the piston rod in the first direction (R2). The connecting element (3) for connecting the control device (1) to the controlled gearbox is made in the form of a flange with holes, and the actuating element (4) protrudes from the housing (2) through the hole (12) in the side of the housing (2) for connecting to the box gears and is made with the possibility of introduction into it. The actuating element (4) is made with the possibility of interacting with the gear change device in the gearbox through the piston rod (5) using an arbitrarily chosen gear ratio. In the body (2) there is a latch (13) made with the possibility of fixing the actuating element (4).

In FIG. 5-9 of the control device (1), in the preferred embodiment, the piston rod (5) is made of a longitudinal (R2) movement piston rod (10) connected to each other and a rotary (R1) movement piston rod (11). To fix the actuating element (4) in the middle position, stops (14), (15) are installed in the housing (2), interacting with the corresponding displacement actuating pistons (6), (7). Engagement between the piston rods (10) and (11) can be achieved by means of connecting means - an appropriate recess/protrusion pair (movable key or spline connection).

The control device, at least one gearbox in the transmission operates as follows

The gearbox control device (1) is installed on the gearbox housing with the help of a connecting element (3) - a flange and fasteners. The control device (1) contains an actuating element (4), which enters the gearbox and interacts with the gearbox pushers. The pushers are located parallel to the longitudinal axis (8) of the piston rod. With the help of the displacement actuator piston (6), the rod (5) with the actuating element (4) fixed on it moves (R2) along the gearbox pushers to select the gearbox corridor. Having chosen the desired corridor, the rod (5), in the preferred embodiment, made of the piston rod of the longitudinal (R2) movement (10) connected to each other and the piston rod of the rotary (R1) movement (11), due to the action of the executive piston of the movement (7) performs rotary movement (R1), thereby moving the actuating element (4) to the left or right, bringing it into engagement with the gearbox pusher, which in turn engages the selected gear.

Claims (9)

1. The control device (1), at least one gearbox in the transmission, containing a housing (2), which has a connecting element (3) on the side of attachment to the gearbox for connecting the control device (1) to the controlled gearbox, the executive element (4) with the ability to move in the first direction (R2) to engage the gear and in the second direction (R1) different from the first direction (R2) to select the gearbox corridor, and the piston rod (5) passing through the housing (2) located in engagement with the actuating element (4), characterized in that it contains engaged and coaxially located with the piston rod (5) the actuating piston of movement (6) in the first direction (R2) and the actuating piston of movement (7) in the second direction (R1 ), while the piston rod (5) is in rigid engagement with the actuating element (4), configured to move relative to the axis (8) of the piston rod in the first direction (R2) to engage the gear and in the second direction (R2) different from the first direction (R1) to select the gearbox corridor. 2. The device according to claim 1, characterized in that the actuating displacement piston (7) is made with helical grooves (9) that make it possible to rotate the piston rod (5) relative to the axis (8) of the piston rod in the second direction (R1). 3. The device according to claim 1, characterized in that the actuating displacement piston (6) is made with the possibility of longitudinal reciprocating movement of the piston rod (5) along the axis (8) of the piston rod in the first direction (R2). 4. The device according to claim 1, characterized in that the piston rod (5) is made of a longitudinal (R2) displacement piston rod (10) and a rotary (R1) displacement piston rod (11) connected to each other. 5. The device according to claim 1, characterized in that the connecting element (3) for connecting the control device (1) to the controlled gearbox is made in the form of a flange with holes. 6. The device according to claim 1, characterized in that the actuating element (4) protrudes from the housing (2) through an opening (12) in the side of the housing (2) for attachment to the gearbox and is made with the possibility of insertion into it. 7. The device according to claim. 1, characterized in that the actuating element (4) is made with the possibility of interacting with the gear change device in the gearbox through the piston rod (5) using an arbitrarily selected gear ratio. 8. The device according to claim. 1, characterized in that in the housing (2) there is a latch (13) made with the possibility of fixing the actuating element (4). 9. The device according to p. 1, characterized in that for fixing the actuating element (4) in the middle position in the housing (2) there are stops (14), (15) interacting with the corresponding actuating displacement pistons (6), (7) .