Rotary device for automotive centrifugal traction assembly

FIELD: transport.

SUBSTANCE: invention relates to automotive anti-skidding appliances. Proposed device 1 comprises drive unit 2 and driven lever 3 mounted on said drive unit it turn thereon and designed to carry rotary anti-skidding device 4 and to drive it between active and passive positions. Drive 2 comprises warm gear and driven warm arranged to engage with ward wheel to actuate driven lever. Driven warm can elastically displace along warm axle.

EFFECT: compact design and higher reliability.

10 cl, 3 dwg

 

The technical field to which the invention relates

The present invention relates to a drive device for anti-skid devices of the vehicle containing the drive unit and the drive lever mounted thereon can be rotated and designed to carry the rotating antiskid device and set it in motion between active and passive clauses.

The level of technology

Trucks smaller size usually do not have pneumatic or hydraulic systems, therefore, these systems cannot be used to actuate the anti-slip device.

The disadvantages associated with the anti-skid device according to the prior art, which is equipped with a shock-absorbing spring for unintentional movement of the drive lever, is that they take up space and limit the ground clearance of the vehicle. You may also experience impacts or issues that cause damage to the device. For example, there are devices that are driven through the wire, which will also act as a spring and disadvantages associated with corrosion, and problems during installation.

The invention

One objective of the present invention C is enabled in the creation of a drive device for anti-skid devices of the vehicle, which in relation to the drive devices according to the prior art enables the creation of an anti-slip device that takes up less space.

Another objective of the present invention is to provide a drive device which is reliable in operation.

At least one of the above purposes are achieved by means of a drive device containing the worm wheel and a driven worm made with the possibility of introducing into engagement with the worm wheel for actuating the drive lever, while the slave worm made with the possibility of the elastic displacement along the axis of the worm. This provides a compact design. The drive lever is actuated between the passive and active positions by a drive means such as a motor. The drive lever in the active position will affect the turning antiskid device with an axial force acting in the direction of the tires of the vehicle.

Preferably a driven worm made with the possibility of elastic displacement in both directions from the neutral position along the specified axis. The worm is in the neutral position when it is not subjected to any impact load acting from the drive means, no external impact is, due to the movement of the drive lever. The fact that the worm made with the possibility of the elastic displacement in two directions, is preferred because the mechanism will not have a gap and rattling during operation and when the system is not used. The worm is made with the possibility of the elastic displacement, which means that the worm should impact force when it is moved.

Preferably the worm has a limited length, which causes the retracting it out of engagement with the worm wheel due to the displacement of the worm due to the rotation of the worm wheel, caused by the movement of the drive lever. The length of the worm, combined with the ability to elastic displacement can be set to achieve the specified characteristics of the system, such as a spring or a certain force/distance to derive from the gearing and/or pre-load exerted by the lever on the bus.

Preferably the length of the lever allows pre-loading of the drive lever does not cause the removal of the worm wheel out of engagement with the worm. The length of the worm in combination with a given spring stiffness provides pre-loading mechanism, without causing unintentional removal of the engagement.

In accordance with the idea izobreteny the worm relies in the axial direction of the elastic means, providing the possibility of the elastic displacement of the worm along the axis. There are various solutions to ensure the elastic displacement of the worm along the axis.

Preferably the resilient means is located around the axis/shaft and is made in the form of a tube of a homogeneous elastic material. This design provides a receipt to the compact design and direct the propulsion shaft of a worm without affecting the drive and resilient means at each other.

Preferably the worm and drive shaft are driven by an electric motor. The motor can be connected directly with splined shaft for driving the worm with slots, linked with splined shaft.

If the load is above the permissible applied from the drive lever to the mechanism, the lever and the worm wheel will cause elastic displacement of the worm, providing temporary disconnection from the motor to avoid damage to the device. This temporary disconnection of the motor is carried out by displacement of the worm and the teeth of the worm wheel out of engagement with the worm. This is due to the fact that the worm gear is cambiocorsa, and, therefore, the worm wheel will provide the relocation of the worm along the axis instead of rotating the worm and the spline shaft.

There are spring-loaded driving mechanism according to the prior art, such as Insta chain. However, this design takes up so much space and does not allow removal of the lever from engagement with a drive mechanism, which makes the system sensitive to external impact and offset.

The advantage in accordance with the idea of the present invention is that the device will be able to respond quickly to external shocks due to elastically move the lever.

Brief description of drawings

Embodiments of the present invention will be described below by way of example with reference to the accompanying drawings.

Figa is a perspective view of anti-slip devices in a passive position.

Fig.1b is a perspective view anti-slip device in the "activated" position.

Figure 2 is carried out with a spatial separation of the elements is a perspective view of a drive device for anti-skid devices.

Figa is a type of anti-slip devices in the "activated" position (circuit not shown).

Fig.3b is a type of anti-slip devices in the "activated" position due to an external impact force).

Description of the preferred embodiments of the invention

Drive unit 2 in accordance with one embodiment of the invention will be further described with reference to the drawings.

Antiskid device 1, shown in figure 1, is used for connection with a wheel of the vehicle and subject to actuation when the ground is slippery, it provides increased friction between the wheel and the ground. It contains friction means 4, held and moved by the drive lever 3, is arranged to move by means of the drive device 2 between the active and passive conditions. Friction means 4 is formed of a wheel with many circuits, but can be used frictional any kind of vehicle.

In this case, the drive unit 2 includes a worm gear driven by an electric motor 9 for driving the drive lever 3 anti-slip mechanism between passive (figa) and active conditions (fig.1b). The motor 9 provides actuated drive shaft, in this case, the spline shaft 7, which transmits the rotation of the worm 5 by means of internal splines. As shown in figure 2, there is a tube 8, 8' of elastic material located around the shaft 7 with both the sides of the worm 5, functioning as an elastic means. The worm 5 is introduced into engagement with the worm wheel 6, which is connected with the driving lever 3 that secure the anti-slip device 4.

If the anti-slip device 4 is subjected to, for example, by obstacles, this leads to rapid involuntary movement of the lever 3 in the direction to the passive position. This rapid movement causes the rotation (turn) of the worm wheel 6 and, consequently, the translational movement of the worm 5 along the shaft 7, and one of the elastic elements 8' will be compressed. Thus, the external influence on the system will not cause damage to the anti-skid devices as the movement is absorbed by the elastic element 8'. The elastic element 8, 8' can be a spring of any suitable type.

Elastic elements 8, 8' are on both sides of the worm 5, therefore, the anti-slip device allows movement of the lever 3 in both directions.

Elastic elements 8, 8' may have the same length, and stiffness, but alternatively can be designed with different length and stiffness to obtain the specified properties.

Made with the possibility of the elastic displacement of the worm 5 can be moved to pre-load of the drive lever 3 and the rotary protivoskol ysasaga device 4 relative to the tire, and, in addition, the worm 5 is moved in the same direction during an external impact. The elastic element 8, the current in the opposite direction, is compressed when the lever 3 reaches its end position into the passive position. Both the elastic element 8, 8' prevent wear and rattling anti-slip mechanism, since the elastic elements 8, 8' provide elastic suspension for moving parts.

External shock will cause the forced displacement of the lever 5, causing rotation of the worm wheel 5 so that the elastic element 8' will be compressed and the worm 5 is a progressive move for a certain distance, which will cause the worm wheel 6 will reach the end of the worm, and, therefore, there will be separation of the worm gear. Because the worm gear is cambiocorsa due to the reversed rotation, the worm 5 will not rotate under the action of an external shock on the part of the lever 3. In addition, the valve will provide the ability to pre-load of the rotary anti-slip device 4 towards the bus. Thus, anti-slip mechanism will be protected and you will avoid damage to components.

The anti-slip device 4 is driven by means of pin the KTA and friction on the side of the tire, it provides the rotation device 4 and the subsequent placement of one of the chains attached to the device, before the wheel.

In addition, the elastic element 8, 8' has the form of a tube made of elastomeric material, with the elastic element 8, 8' can be performed in any suitable way to provide displacement of the worm 5 along the axis A.

Thus, there is the possibility of obtaining reliable and compact anti-slip mechanism.

It should be understood that an implementation option, described above, may be modified and changed by the specialist in the art without departing from the inventive concept defined in the claims. For example, anti-slip mechanism can be performed with other construction, provided that the worm 5 is made with the possibility of the elastic displacement along the axis A.

1. Drive unit (2) for the anti-skid device (1) of the vehicle containing the rotary antiskid device (4)located on the drive lever (3)mounted to rotate on the drive device (2), while the drive unit is configured to actuate the drive lever between the active and passive conditions,
characterized in that the drive unit (2) contains
worm wheel (6) and
ve is my worm (5), made with the possibility of introducing into engagement with the worm wheel (6) for actuating the drive lever (3),
and a driven worm (5) is made with the possibility of the elastic displacement along the axis (A) of the worm (5).

2. Drive unit (2) according to claim 1, in which a driven worm (5) is made with the possibility of elastic displacement in both directions from the neutral position along the axis (A).

3. Drive unit (2) according to claim 1 or 2, in which a worm (5) has a limited length, causing the excretion out of engagement with the worm wheel (6) due to the displacement of the worm (5) by rotation of a worm wheel (6), caused by the movement of the drive lever (3).

4. Drive unit (2) according to claim 3, in which the length of the lever (5) allows pre-loading of the drive lever (3)does not cause the removal of the worm wheel out of engagement with the worm (5).

5. Drive unit (2) according to claim 1, in which a worm (5) is supported in the axial direction by an elastic means (8, 8'), providing the elastic displacement of the worm (5) along the axis (A).

6. Drive unit (2) according to claim 1, in which a driven worm made with the possibility of fixing it in the direction of rotation and displacement in the axial direction along the drive shaft (7).

7. Drive unit (2) according to claim 6, in which the elastic means (8, 8') is located around the shaft (7).

8. Drive unit (2) according to claim 7, inwhich elastic means (8, 8') is made in the form of a tube of a homogeneous elastic material.

9. Drive unit (2) according to claim 1, in which a worm (5) and/or drive shaft (7) are/is driven by an electric motor (9).

10. Drive unit (2) according to claim 5, in which the elastic means (8, 8') is made in the form of a tube of a homogeneous elastic material.



 

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