RU54121U1 - TRANSMISSION CABLE TRANSMITTER TRANSMISSION - Google Patents

Abstract

The invention relates to the field of mechanical engineering, to devices for remote control of mechanisms. The cable drive translator is designed to convert the reciprocating movements of the cables connected to the gearshift lever into rotational and translational movements of the gearshift rod in the vehicle gearbox. The technical solution is aimed at reducing the size of the remote cable drive and simplifying the layout of the drive on the gearbox. The cable drive translator of the gearshift mechanism comprises a clamp housing with a spline hole for connecting to the gearshift shaft and a plug housing with eyes for attaching drive cables and a tab with a hole for connecting to the jet thrust. The housing-clamp is mounted on the cantilever part of the axis mounted on the bearings in the hole of the fork housing. The new one is that the foot is made at the end of the fork body facing the clamp housing. An incision was made along the splined hole on the clamp housing and a coupling bolt was installed. Three holes are made on the foot for connection with a jet thrust. Axle bearings are made in the form of sliding bearings. Plain bearings can be made in the form of bushings made of plastic.

Description

The invention relates to the field of mechanical engineering, to devices for remote control of mechanisms. The cable drive translator is designed to convert the reciprocating movements of the cables connected to the gearshift lever into rotational and translational movements of the gearshift rod in the vehicle gearbox.

Known remote control gearbox [1], containing a front longitudinal link connected to the rear longitudinal link associated with the gear shift mechanism. The front longitudinal link is equipped with a U-shaped lever rigidly connected to the rear longitudinal link with its upper part. The rear longitudinal rod is provided with a console and is rigidly connected with its upper part, while the lower part of the console is connected with the front longitudinal rod having freedom of rotation. As a result, it is possible to transmit axial and circumferential forces between the front and rear longitudinal rods with great misalignment.

The design of this remote drive provides remote transmission of axial and peripheral forces with a large misalignment of the front and rear longitudinal rods, however, the device has limited application possibilities. In particular, for transferring forces over a relatively long distance, for example, at a bus gearshift drive with a rear power unit, it is impossible to use the device due to the presence of several bends on the drive track.

Known drive gearbox gearbox "KAMAZ" [2]. The drive consists of a gear lever mounted in the bus cabin. The lever is installed in the master support and is connected to the link to which the ends of the remote control cables are attached. Opposite ends

the cables are mounted on a translator, which is designed to convert the reciprocating movement of the cables into rotation and axial movement of the gearshift shaft mounted on the gearbox.

The translator consists of two body parts - the clamp housing and the plug housing, mounted on a common axis with the possibility of rotation relative to each other. In the case-clamp, a slotted hole is made with a cut and a coupling bolt for connecting to the gearshift shaft, and the case-fork has two eyes with holes for attaching cables and a foot with an hole for securing the jet thrust. The housing-clamp is rigidly fixed on the axis installed in the bearing bearings. Supports are placed in the housing-plug on both sides of the housing-clamp.

The disadvantage of this device is the design complexity, because the plug-in body is a space-developed figure with elements protruding in different directions and an aperture for axle bearings, made in hard coordinates.

Also known is a remote cable drive of the English company Morse Controls Ltd [3], containing a translator of a cable drive of a gearshift mechanism. The translator consists of a clamp housing with a slotted hole for connecting to the gearshift shaft and a fork housing with eyes for attaching drive cables and a foot with a hole for connecting to a jet thrust. The housing-clamp is mounted on the cantilever part of the axis mounted on the bearings in the hole of the fork housing.

The objective of the claimed utility model is to reduce the size of the remote cable drive and simplify the layout of the drive on the gearbox.

The technical result consists in providing the possibility of installing the drive on the gearbox in a limited space, in particular, for mounting the drive on a power unit installed in the rear of the bus.

The technical result is achieved by a translator of a cable drive of a gearshift mechanism, which comprises a housing-clamp with a spline hole for connecting to the gearshift shaft and a housing-fork with eyes for attaching drive cables and a tab with a hole for

jet thrust connections. The housing-clamp is mounted on the cantilever part of the axis mounted on the bearings in the hole of the fork housing.

The new one is that the foot is made at the end of the fork body facing the clamp housing. An incision was made along the splined hole on the clamp housing and a coupling bolt was installed. Three holes are made on the foot for connection with a jet thrust. Axle bearings are made in the form of sliding bearings. Plain bearings can be made in the form of bushings made of plastic.

The translator rotates the gearshift shaft under the influence of the forces transmitted by moving one cable (forward or backward) by both drive cables.

The shift shaft is moved along its axis by the translator under the influence of the forces transmitted by two cables moving in opposite directions. In this case, the translator rotates relative to the fulcrum created by the jet thrust.

The form of the translator and the relative position of its elements are determined by its function. The translator is the central part of the system, which is designed to convert pushing and pulling forces from a pair of reciprocating cables to the rotation and axial movement of the gearshift shaft.

Another factor affecting the design of the translator is the layout capabilities. When installing a remote drive on a gearbox, it is necessary to take into account the design features of a particular box, for which the design of the drive and, in particular, the translator is substantially reworked while maintaining the functional purpose.

Figure 1 shows the inventive translator. Figure 2 - installation of the translator in a remote cable drive gear shift. Figure 3, 4 translator company Morse (prototype).

The translator consists of a clamp housing 1 and a plug housing 2 mounted on a common axis 3. One end of the axis is mounted in the hole of the plug housing on the bearings 4. At the other end of the axis, which protrudes from the plug housing in the form of a cantilever beam, the housing is fixed -clamp 1. In the case-clamp is made

a spline hole 5 for connecting to the gearshift shaft, and a cut 6 is made along the hole and a coupling bolt 7 is installed. The eyes 8 for securing the cables and the foot 9 with the hole for connecting the jet thrust are made on the plug body.

The remote drive consists of a gear lever 10 mounted in the driver's cab. The lever is fixed in the support 11 and connected to the cables of the drive 12. The cables are fixed to the pads 13. The opposite ends of the cables are connected to the eyes 8 of the translator. The housing-clamp 1 is mounted on the spline shaft of the gearshift shaft installed in the support 14 of the gearshift mechanism. The tab 9 is connected to the jet link 15.

The device operates as follows.

Using the lever 10, the driver drives the cables 12. By moving the lever forward or backward, both cables move simultaneously in one direction. In this case, the translator rotates around the axis of the gearshift shaft and, accordingly, rotates the shaft itself, as a result of which the fork mounted on the shaft engages the corresponding gear.

By moving the lever 10 to the sides in the planes intersecting with the vertical longitudinal plane, the cables 12 are forced to move in opposite directions relative to each other. In this case, the cables create a moment on the translator in a horizontal plane, which, thanks to the jet link 15 connected to the tab 9, is converted into axial force on the gearshift shaft. The shaft moves axially, making a gear selection.

So the translator performs its function - converting the reciprocating movements of the cables connected to the gear lever into rotational and translational movements of the gear shaft in the vehicle gearbox.

Information sources:

1. RF patent №2163200, IPC B 60 K 20/00.

2. Installation and operation manual for cable gearbox control RE 37.1703008. Published by KORA Engineering LLC, Naberezhnye Chelny, 2004, p.6-7.

3. Prospectus of the English company “Morse Controls Ltd”, Christopher Martin Road, Basildon Essex, SS 14 3ES England, “Remote cable drives” - prototype.

Claims (5)

1. The cable drive of the gearshift mechanism comprising a clamp housing with a spline hole for connecting to the gearshift shaft and a fork housing with eyelets for securing the drive cables and a foot with a hole for connecting to the jet link, the clamp housing is mounted on the console part of the axis mounted on the bearings in the hole of the fork housing, characterized in that the tab is made at the end of the fork housing facing the housing clamp. 2. The translator according to claim 1, characterized in that a cut along the spline hole is made on the clamp housing and a coupling bolt is installed. 3. The translator according to claim 1, characterized in that on the foot there are three holes for connection with a jet thrust. 4. The translator according to claim 1, characterized in that the axis supports are made in the form of sliding bearings. 5. The translator according to claim 5, characterized in that the bearings are made in the form of bushings made of plastic.