SHIELDING INSTALLATION DEVICE IN LARGE TIRES AND SHIELDING INSTALLATION METHOD

Abstract

Described is a shielding installation device in large tires and a shielding installation method in large tires. The device comprises a shaft, a reducer, a motor, a base, and a frame. The shielding installation method comprises different sequential steps, configured for installation of shielding on the thread of a large tire. The device and method of use of this device can allow a safe and practical installation of shielding in large vehicles, solving the serious safety problem related to traditional techniques of installation of this element.

Claims

1. A device for installation of shielding of large tires, comprising: a shaft; a reducer; a motor; a base; and a frame, wherein: the shaft is permanently associated to the reducer; the reducer is coupled to the motor; at least a part of the shaft, reducer, and motor are permanently attached to the frame; the frame is laid out on the base; and the motor, reducer, shaft, and frame are capable of supporting and handling a large tire.

2. The device for installation of shielding of large tires, according to claim 1, wherein the large tire has diameter from 2 to 5 meters.

3. The device for installation of shielding of large tires, according to claim 1, wherein the large tire has weight from 3 to 15 tons.

4. The device for installation of shielding of large tires, according to claim 1, wherein the shielding consists of a metallic mesh of intertwined chains, able to increase adherence and the contact surface of the thread of the large tire.

5. The device for installation of shielding of large tires, according to claim 1, wherein it comprises a brake configured to reduce the rotation speed when stopping the shaft, after installing the shielding.

6. The device for installation of shielding of large tires, according to claim 1, wherein the reducer can promote a reduction of 99:1.

7. The device for installation of shielding of large tires, according to claim 5, wherein the reducer is made up of planetary gears.

8. The device for installation of shielding of large tires, according to claim 1, wherein the motor is an electric motor.

9. The device for installation of shielding of large tires, according to claim 1, wherein the device is manipulated by remote control.

10. A method for installing shielding on a large tire, comprising: removing a large tire from a large vehicle; applying the large tire to the device of claim 1 using lifting equipment; positioning a shielding mesh; attaching one end of the shielding mesh to the large tire; rotating the large tire in the device; adjusting the shielding mesh of the large tire; removing the large tire from the device; and installing the large tire in the large vehicle.

Description

BRIEF DESCRIPTION OF DRAWINGS

[0033] This invention is described in detail, based on the respective figures:

[0034] FIG. 1 is a perspective view of a large wheel loader machine;

[0035] FIG. 2 is a front view of the shielding installation device for large tires;

[0036] FIG. 3 is a side view of the shielding installation device for large tires;

[0037] FIG. 4 is a perspective view of the shielding installation device for large tires;

DETAILED DESCRIPTION OF INVENTION

[0038] The present invention consists of a shielding installation device 10 for large tires 5. The device 10 is configured to rotate the large tire 5 off the vehicle 9 in which it is applied, thus making it possible to rotate the tire 5 in a safe distance from the ground, and at a suitable speed to install the shielding 7.

[0039] The safety of the shielding 7 installation process is also increased, because, as the large tire 5 is removed from the vehicle 9 to install the shielding 7, the workers are not exposed during the movement of the vehicle 9. Thus, the risk of being hit by the vehicle 9, or being crushed wheel loader bucket are eliminated, since it is no longer moved during the process.

[0040] The device 10 of this invention comprises a base 1, a frame 2, a motor 3, a reducer 4, and a drive control (see FIGS. 2, 3 and 4). Base 1 consists of a plate configured to attach the frame 2 to the ground, ensuring the balance of the device 10 during operation.

[0041] Such base 1 is provided with two flat faces, one in contact with the ground, and the other attached to the frame 2 of the device 10. The frame 2 consists of a structure configured to support the rotating elements of the device 10 and keep the large tire 5 at a safe distance from the ground during operation.

[0042] Such chassis 2 comprises a shaft 6 in its upper part, configured to support the large tire 5 when installed to the device 10, where the rotating elements to rotate the large tire 5 are installed. The motor 3 is installed on the shaft 6 of the frame 2, being configured to perform rotation and consequently ensure the necessary movement during installation of the shielding 7.

[0043] The reducer 4 is coupled to the motor 3, so that it is rotated with the frame 2 shaft. The reducer 4 is configured to adjust the rotation speed provided by the motor, so that it is possible to reduce or increase the rotation speed according to the need.

[0044] The reducer 4 also comprises a brake, configured to stop the shaft 6 in a faster and more practical way. In addition, the brake also ensure more safety during the placement and removal of the large tire 5 in the device.

[0045] The motor 3 and the reducer 4 are connected to the drive control, which is configured to turn these elements on and off. The drive control activates the motor 3, and allows to regulate the rotation speed through the reducer 4.

[0046] In addition, the drive control also comprises a button to activate the break provided in reducer 4, therefore ensuring the safety of the device 10 operator.

[0047] The preferential configuration of base 1 consists of a metallic plate, in order to have a higher strength to support the weight of frame 2 without damage or deformations that would imply in the loss of balance of the device 10.

[0048] The preferential configuration of frame 2 consists of a metallic structure fitted with a shaft 6, also metallic, in order to support the efforts during the rotation and sustentation of the large wheel 5.

[0049] The preferential configuration of engine 3 consists of a electric motor with power adequate to perform the rotation of the shaft 6 and large tire 5. As an alternative, combustion motors or other types of energy sources may be used to the rotation of shaft 6.

[0050] The preferential configuration of reducer 4 consists of a reducer comprising planetary gears, which make it able of reaching a reduction of up to 99:1. As an alternative, other types of reducers may be used, comprising other types of gears, only being required to perform an adjustment of the speed provided by motor 3, for each reducer 4 used by the device 10.

[0051] The preferential configuration of drive control consists of a small control that may be kept at a safe distance from the device 10. As an alternative, the drive control may be attached near to the device 10, so that the operator needs to stay very close to device 10.

[0052] This invention also comprises a shielding 7 installation method for large tires 5, using the device 10. Such method comprises 8 steps, duly described below.

[0053] The first step is the removal of the large tire 5 from the large vehicle 9. In this step, the worker raises the vehicle 9 to remove the tire 5, and then transport it to the device 10.

[0054] The second step is the application of the large tire 5 to the device 10. Such application is performed by a lifting equipment, which raises the tire 5 so that it is installed in the shaft 6 of the device.

[0055] The third step is the positioning of the shielding 7 mesh to shield the tire 5. The shielding 7 mesh is placed and laid open on the ground, so as it is in line with the tire 5 thread (see FIG. 2).

[0056] The fourth step consists of attaching one of the ends of the shielding 7 mesh to the large tire 5. Such attaching is carried by a hook at the end the shielding 7 mesh.

[0057] The fifth step is the rotation of the large tire 5 in the device 10. Such stage is performed by activating the motor 3, which is activated by the drive control. The motor 3 is turned on and rotates the shaft 6, which then rotates the large tire 5.

[0058] Shielding 7 mesh, with one of its ends attached to the tire 5 on the fourth step, is then wrapped according to the rotation of tire 5, so as it is shielded.

[0059] The sixth step is the adjustment of shielding 7 of the large tire 5. In this step, workers make the attachments and adjustments required for a perfect shielding.

[0060] To make adjustments, the shaft 6 is rotated at a low speed, controlled by the reducer 4, thus ensuring greater safety for the workers who perform the adjustment of the shielding 7 by using hand tools.

[0061] The seventh step is the removal of the large tire 5 from the device 10. To perform this step the operator must stop the rotation of the device to avoid accidents. Such stop of device 10 is performed by the drive control, which brakes the shaft 6, and turns off the motor 3, ensuring that the tire 5 does not rotate during its removal.

[0062] The removal, and also the application of the tire 5, is performed through a lifting equipment (a munck, a forklift or any crane, for example) which transports the tire 5 from its support point on shaft 6 to the vehicle 9 where it will be applied.

[0063] The eighth and last step is the installation of tire 5 in the vehicle 9 where it will be applied. Such operation is also performed by lifting the machine to attach the tire 5.

[0064] Having described some examples of preferred achievement of the invention, it is noteworthy that the scope of protection given by this document encompasses all other alternative forms appropriate to the execution of the invention, which is defined and limited only by the content of the claim scope attached.