DE4019152A1 - Dump barrow heating system - is used on articulated truck and has magnetic joint in exhaust pipe between cab and barrow - Google Patents

Abstract

The joint is formed by the bulbous convex end of one pipe (10) fitting into the dished concave end piece (11) of the other and being held there by magnetic force. Permanent magnets (12a,12b) and ring magnets (13a, 13b) are used. The exhaust gases pass from the tractor part of the articulated truck to the double walls of the dump barrow to heat the rubbish and prevent it freezing. USE/ADVANTAGE - Exhaust connection for heated dump barrow or garbage truck. Joint minimises damage when uneven terrain causes excess strain to be placed on the joint.

Description

The invention relates to an engine exhaust pipe Heating of the loading trough of an articulated truck.

Known articulated dump trucks are known double-walled trough can be heated by exhaust gases from the engine. At the Unloading bulk goods, such as clay or moist earth a truck by dumping often remain parts of the Hang bulk goods on the walls of the loading body. By heating the double-walled loading trough heats up, which is known from experience detaches the load from the walls more easily and better from the Loading area slips so that a more complete discharge is achieved becomes.

With such an arrangement there is a flexible pipe connection required between the power car and the load section. When using such off-road vehicles, it happens now often before that both vehicle parts, power unit and load part twist strongly against each other or one of the stable position loses and overturns.

The task with an arrangement according to the generic term of the main claim is now that for the unstable case to minimize the damage that occurs. In particular, should the pipe connection between the power car and the load section before uncontrolled destruction.  

A solution to the above problem is described for the beginning bene arrangement seen in that connected as a pipe separation point a bead-shaped convex due to magnetic attraction forces Pipe end part stored in a concave shell-like pipe end part is.

Further developments of the invention are described in the subclaims ben. Flanges can be arranged in front of each pipe end part through a mechanical stringing together of a magnetic Component with a spring element connecting the Ensure the pipe separation point.

Magnetic components can be either single rods known per se magnets can be used or it can also be a ring-shaped one magnetic part are used. The pipe separation point with their two pipe end parts must have a certain mobility enable. These end parts are therefore bead-like or shell-like executed, the bearing surfaces dome-shaped or with a spherical envelope of a conic function are formed.

Due to the flexibility of the engine exhaust pipe in the Desired pipe separation point follows the impacts of the articulated joint especially good if the central axis of the pipe separation point in the line of alignment of the articulation axis of rotation.

Using a schematically shown in the drawing Embodiment is the invention in the following explained.

In Fig. 1, the transition between the driving head ( 1 ) and the load part ( 2 ) is shown as a detail. Fig. 2 illustrates light in detail, the pipe separation point ( 9 ).

Already known from the general drawing of Fig. 1 it is clear that the engine exhaust pipe in its parts (4 a and 4 b) able to movements of the articulated joint particularly well to follow, if the central axis (19) of the pipe predetermined breaking point (9) in the Alignment line of the articulation axis of rotation ( 14 ) lies. The representation is completed by the tilting device ( 7 ) for the double-walled loading trough ( 3 ) with its exhaust gas supply nozzle ( 6 ).

Fig. 2 in its detailed representation of the pipe separation point ( 9 ) illustrates both the basic structure of the inventive solution and advantageous developments.

A bead-shaped convex tube end part ( 10 ) is mounted in a concave shell-like tube end part ( 11 ). As can be seen in the left part of the figure, individual permanent magnets ( 12 a) can be provided to ensure the magnetic attraction forces for the connection in the shell-like tube part. The right part of FIG. 2 illustrates an arrangement in which a permanent magnetic ring ( 13 a) is used for the above task.

In a development of the invention, flanges ( 15 and 16 ) are shown on the outer circumference of the pipe separation point ( 9 ) as additional or alternative devices for ensuring the connecting forces on each pipe end part, which flanges ( 17 , 18 ) are interconnected by measures known per se, such as screws or hooking. The magnetic component on the flange ( 15 ) can likewise be represented in a comparable manner by a magnetic ring ( 13 b) with spring linkages in individual points or by individual permanent magnets ( 12 b).

The figure finally illustrates that an articulation between the pipe end parts is achieved in that the common bearing surface ( 8 ) is dome-shaped or with a spherical envelope curve of a conic section function.

The advantage of the invention is that in the event that the power car ( 1 ) and the load part ( 2 ) turn against each other in the field or the load part even overturns the engine exhaust pipe is not destroyed at an arbitrary point, but at the Desired pipe separation point ( 9 ). It will then be easily possible later to join the two pipe end parts ( 4 a and 4 b) without permanent mechanical damage occurring in the engine exhaust pipe.

Reference numbers

1 power car
2 load part
3 loading trough
4 a section
4 b section
6 flue gas supply connection
7 tilting device
8 storage space
9 Desired pipe separation point
10 convex tube end part
11 shell-like pipe end part
12 a permanent magnet
12 b permanent magnet
13 a magnetic ring
13 b magnetic ring
14 articulated pivot axis
15 flange
16 flange
17 spring element
18 spring element
19 central axis

Claims (9)

1. Engine exhaust pipe for heating the loading trough of an articulated truck, characterized in that a bead-shaped convex pipe end part ( 10 ) in a concave shell-like pipe end part ( 11 ) is connected as a desired pipe separation point ( 9 ) connected by magnetic attraction forces. 2. Arrangement according to claim 1, characterized in that in the shell-like tube end part ( 11 ) individual permanent magnets ( 12 a) are arranged. 3. Arrangement according to claim 1, characterized in that a permanently magnetic ring ( 13 a) is arranged in the shell-like tube end part ( 11 ). 4. Arrangement according to claim 1, characterized in that in front of each pipe end part ( 10 , 11 ) flanges ( 15 , 16 ) are arranged, which are connected by a mechanical stringing together of a magnetic component with a spring element ( 17 ). 5. Arrangement according to claim 4, characterized in that the magnetic component by a magnetic ring ( 13 b) is Darge. 6. Arrangement according to claim 4, characterized in that the magnetic table component is represented by a permanent individual magnet ( 12 b). 7. Arrangement according to claim 1, characterized in that the common bearing surface ( 8 ) on the tube end parts ( 10 , 11 ) is dome-shaped. 8. Arrangement according to claim 1, characterized in that the bearing surface ( 8 ) on the pipe end parts ( 10 , 11 ) is formed with the spherical envelope curve of a conic function. 9. Arrangement according to claim 1, characterized in that the central axis ( 19 ) of the pipe separation point ( 9 ) lies in the line of alignment of the articulated axis of rotation ( 14 ).