RU166402U1 - CONTROLLED BRIDGE OF A SELF-PROPELLED MACHINE - Google Patents

Abstract

1. A controlled bridge of a self-propelled machine, comprising a bridge beam, wheel hubs, pivoting arms pivotally connected at one end thereof, and a rotary power drive mechanism in the form of a hydraulic cylinder with a two-sided rod outlet and a piston mounted in the middle of the rod, while the hydraulic cylinder is fixedly fixed in the middle part of the bridge beam, the end parts of the hydraulic cylinder rod are provided with pivoting eyes fixed with the possibility of changing the length of the rod and connected to the ends of the pivoting levers by pivotally mounted rods, and the pivoting levers are rigidly fixed to the pivot and installed in the eyes of the bridge beams, characterized in that on the basis of the pivoting levers there is a protection made in the form of a labyrinth seal and a cuff. 2. The bridge according to claim 1, characterized in that the rotary levers are mounted on two eyes of the bridge beam using a kingpin.

Description

CONTROLLED BRIDGE OF A SELF-PROPELLED MACHINE

The utility model relates to the metallurgy of light metals, namely, to the main parts intended for aggregation with machines for servicing aluminum electrolysis cells in a limited space of aluminum production workshops.

Known steering axle of a vehicle, (RF patent No. 11527, class C. B62D 5/06, 1999) containing a transverse beam articulated on the axis of pumping of the bridge, C-shaped levers located at opposite ends of the transverse beam and articulated with hubs the wheels, the beam, and also with each other by means of the upper link, at least one tilt cylinder articulated to the beam and the C-arm, wheel turning cylinders articulated to the beam and the wheel hub brackets connected by the link. The cross-sectional beam in the section is box-shaped, in which the axle for pumping the bridge and the hinge for connecting the hydraulic cylinder for tilting the wheels with the beam are installed. The axis of pumping of the bridge is located above the axis of the hinge of the connection of the hydraulic cylinder for tilting the wheels with the beam.

The known device is structurally and technologically complex, in addition, the device does not provide reliability.

The closest in technical essence to the claimed utility model is the invention (RF patent No. 2118267, class C. B62D 5/12, 1998). The controlled bridge contains a beam, wheel pins with steering knuckles, steering tie rods pivotally connected to them and a rotary power drive mechanism in the form of a hydraulic cylinder with a rod placed therein, protruding equally from the edges of the hydraulic cylinder body and with a piston installed in the middle of the rod. The hydraulic cylinder rod is fixedly mounted on the bridge beam, and the ends of the axial cylinder housing are movable with heads that are pivotally connected to the arched transverse steering rods. The rod of the hydraulic cylinder is made with axial and radial channels for supplying fluid to the hydraulic cylinder, moreover, the outlet of at least one of the channels on each side of the piston is placed under the piston and there are bevels on the piston in the exit zone of these channels.

The main disadvantages of the prototype include the following:

- there is no adjustment of the length of the rod, and, accordingly, the adjustment of the convergence of the wheels, which increases tire wear and determines the short life of the wheels;

- the rod is mounted on the beam using mounting bolts that weaken the beam section, cause stress concentration and reduce the reliability and durability of the controlled bridge.

The objective of the utility model is to increase the reliability and durability of the controlled bridge.

The technical result of solving the problem is the ability to control the convergence of the wheels, reducing the specific load on the bearings, reducing the stress concentration on the bridge beam.

The technical result is achieved by the fact that in the construction of a controlled bridge of a self-propelled machine containing a bridge beam, wheel hubs, pivot arms pivotally connected at one end thereof and a rotation power drive mechanism in the form of a hydraulic cylinder with a two-sided stem outlet, and with a piston mounted in the middle of the stem, at the same time, the hydraulic cylinder is fixed motionless in the middle part of the bridge beam, and the end parts of the hydraulic cylinder rod are provided with hinged eyes fixed with the possibility of changing the length of the rod and connected with the ends of the pivoting levers by pivotally mounted rods, and the pivoting lever is rigidly fixed to the pivot and installed in the eyes of the bridge beams, according to the claimed solution, protection based on the pivoting lever is made in the form of a labyrinth seal and cuff

The utility model is complemented by a private distinguishing feature that contributes to the achievement of the technical result.

The pivot arm is mounted on two eyes of the bridge beam using a kingpin.

The essence of the utility model is illustrated by the following drawings:

in FIG. 1 shows a steered bridge, main view; in FIG. 2 - the same, top view; in FIG. 3 - the same, with a maximum turn of the wheels to the left; in FIG. 4 is a section along DD of FIG. one; in FIG. 5 is a section along E of FIG. one; in FIG. 6 is a section along G of FIG. one.

Enumeration of structural elements. Bridge beam 1;

Frame 2 of the vehicle;

Swing axis 3;

Wheels 4;

Hydraulic cylinder 5;

The stem 6 of the hydraulic cylinder 5;

Staples 7;

Holes 8 of the hydraulic cylinder 5;

The piston 9 of the hydraulic cylinder 5;

Articulated eye 10;

Locknut 11;

Thrust 12;

An eye 13 of the rotary lever 14;

Pivot arm 14;

Eye 15 beams 1;

King pin 16;

Set screw 17;

Locknut 18;

Covers 19 pin 16;

Protection, in the form of a labyrinth seal and cuff 20;

Spacer sleeve 21;

Hub 22.

The steering axle of the vehicle performs two functions: it serves as a support for the front of the frame and provides the vehicle with turns during movement. The controlled bridge is a beam of the bridge 1 connected to the frame 2 of the vehicle, with the possibility of swinging in the vertical plane using the swing axis 3. The swing axis 3 for fixing the beam 1 of the controlled bridge on the frame 2 is made in the central part of the beam 1. The drive of rotation of two the wheels 4 are carried out from the hydraulic cylinder 5. The rod 6 is installed in the hydraulic cylinder 5 with a two-sided output of the rod 6 and the protruding end parts of the rod 6 beyond the edges of the hydraulic cylinder 5. The hydraulic cylinder 5 is rigidly fixed in the middle of the beam 1 using brackets 7. In cr openings of the hydraulic cylinder 5 are made openings 8 for the supply of hydraulic fluid in the cavity of the hydraulic cylinder A and B, separated by a piston 9, mounted between the two parts of the rod 6. In the end parts of the rod 6 is pivoted hinge eye 10 with an articulated bearing located in its hole, which rigidly attached to the stem 6 with a lock nut 11. The hinged eye 10 is fixed with the possibility of changing the installed length of the rod 6, which allows you to adjust the convergence of the wheels to reduce tire wear.

The rods 12 are pivotally fixed at one end to the hinge eyes 10, and at the other ends to the pivot eye 13. The eye 13 is fixed rigidly to the pivot arm 14. The rod 12 is made in the form of two plates fastened rigidly to each other. The pivot lever 14 is installed in the eyes 15 of the beam 1 of the bridge and is rigidly fixed to the pin 16, which is inserted into the hole of the eye 15 of the beam 1. The pivot lever 14 is fixed to the pin 16 with a set screw 17 and a lock nut 18.

The pin 16 from the ends is hermetically closed by covers 19, which are attached rigidly to the eyes 15 of the beam 1 of the bridge. In the lid 19 there are oilers for supplying lubricant to the sleeve. A protective casing 20 is mounted on the pivot arm 14, which is attracted by the spacer sleeve 21. The protective casing is made in the form of a labyrinth seal and a cuff for sealing the shafts, which reduces the ingress of small particles of dust and dirt into the cavity of the hub 22.

When g / liquid is supplied into cavity A, the stem 6 begins to move in the direction of the arrow G, acts on the rod 12, which rotates the pivot arm 14, which rotates the hubs 22 of the rotary wheels 4. When the rod 6 is extended on one side, the rod on the other side retracts into the hydraulic cylinder 5.

The controlled bridge can be used for aggregation with loading machines, unloading alumina and other machines used for the technological processing of aluminum electrolysis cells.

The inventive design improves reliability and durability. By changing the length of the rod, it is possible to adjust the convergence of the wheels, which reduces tire abrasion and increases the service life of the wheels.

Securing the pivot arm firmly to the kingpin increases the life of the spacer sleeves and plain bearings.

The fastening of the hydraulic cylinder motionless in the middle part of the bridge beam eliminates the stress concentration, which weakens the beam section.

Claims (2)

1. A controlled bridge of a self-propelled machine, comprising a bridge beam, wheel hubs, pivoting arms pivotally connected at one end thereof, and a rotary power drive mechanism in the form of a hydraulic cylinder with a two-sided rod outlet and a piston mounted in the middle of the rod, while the hydraulic cylinder is fixedly fixed in the middle part of the bridge beam, the end parts of the hydraulic cylinder rod are provided with pivoting eyes fixed with the possibility of changing the length of the rod and connected to the ends of the pivoting levers by pivotally mounted levers, and the pivoting levers are rigidly fixed to the pivot and installed in the eyes of the bridge beams, characterized in that on the basis of the pivoting levers there is a protection made in the form of a labyrinth seal and cuff. 2. The bridge according to claim 1, characterized in that the pivoting levers are fixed on two eyes of the bridge beam using a kingpin.

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