RU2742438C1 - Ropeway carriage - Google Patents

Abstract

FIELD: transportation.

SUBSTANCE: invention relates to lifting-and-conveying equipment, namely, to cable-ways. Cable car carriageway consists of two rigid frames interconnected by means of at least two pairs of damping elements with bolt joint and two pairs of guide rolls on one and the other side of the device. Frames are located above and under the rope. Along longitudinal axes of frames are fixed with possibility of rotation of wheel so that upper frame contains at least two wheels, and lower one is at least one, projection of axis of which is located strictly in center of distance between projections of axes of upper wheels. Carrier of ropeway - ropes comprises also fastening of basket or platform installed below bottom frame by means of flexible connection to upper frame.

EFFECT: result is a simple device in the design, which enables to perform both downhill and movement on the cable at an angle upwards.

6 cl, 5 dwg

Description

Technology area

The invention relates to lifting and transport equipment, namely to overhead cable installations.

State of the art

Devices for the transfer of goods based on the principles of the use of ropeways are divided into one cable and many cable (usually 2-3), each division has its pros and cons, carriages are known for moving which, in addition to guide or guide ropes, traction is additionally used, such devices have relatively complex structure.

To move along the cable, carriages are used that contain a housing and a set of rollers placed in it. The carriages can be driven, moving under the action of external forces, for example, a traction cable, as on cable cars or the gravity of the load (zipline, trolls), or leading, having their own propeller.

Known carriage, described in the USSR Inventor's Certificate No. 1090602, containing a housing with a pusher installed in it, a roller for a load-carrying cable and a pivot bracket fixed on the axis, while the carriage contains a connecting rod with an asterisk, hinged on two axes, a groove and a stop. The disadvantages of this device are the complexity of the design and maintainability.

Known tandem-driven carriages, consisting of a body with at least two rollers, the most famous of these devices are represented by Zipline products https://ru.wikipedia.org/wiki/%D0%97%D0%B8%D0%BF%D0% BB% D0% B0% D0% B9% D0% BD. The disadvantages of these solutions is the fact that they are used only for downhill skiing.

Leading carriages are used for pulling cables between buildings, cable guides, for example Rope T-01 https://vek-telecom.ru/product/trosohod-t-01/ which lead carriage has two rollers located above the cable and driven by a belt drive from the electric motor reducer. The friction force required to move the carriage along the cable is provided by the gravity of the carriage and the load.

Such a scheme has a limitation in the angle of ascent along the cable, and in practice, for loads over 20 kg, this limiting angle is not more than 15 degrees, and the coefficient of friction of the wheel along the cable is not more than z = 0.25. And the friction force F = z * m * g * cos (a), m is the mass of the carriage and the load, g-9.81 is the acceleration of free fall of the earth, and is the angle between the horizon and the longitudinal axis of the cable.

In other words, we can say that this carriage can only work for horizontal tensioned cables with relatively small sag angles. This cable guide serves solely for pulling the cables and is not intended to move people.

DISCLOSURE OF THE INVENTION The technical problem to be solved by the claimed invention is a device that is simple in design, which allows both a person's downhill descent and movement along a cable at an angle upward.

The technical result of the claimed invention is the ability of the claimed device to move along the carrying cable at large angles due to the possibility of changing and controlling the downforce of the motor wheels and / or wheels to the cable.

To achieve this technical result, a cable car carriage is proposed - a cable carriage, characterized by the fact that it consists of two rigid frames interconnected by means of at least two pairs of damping elements with a bolt connection and two pairs of guide rolls on one and the other side of the device, with this, the frames are located above and below the cable, along the longitudinal axes of the frames are fixed with the possibility of rotation of the wheels so that the upper frame contains at least two wheels, and the lower frame contains at least one, the projection of the axis of which is located strictly in the center of the distance between the projections of the axes upper wheels, contains a basket or platform fastening installed below the lower frame by means of a flexible connection to the upper frame.

In a preferred embodiment:

- includes a container located under the lower frame, fixed by means of rigid rods to the upper frame;

- the basket or platform fastening consists of an upper and a lower bar connected through a rotation unit;

- a battery and control equipment are installed in a container under the lower frame;

- guide rolls are a steel rotation shaft made of two parts, with a telescopic joint, covered with a layer of polyurethane or rubber.

- at least one wheel contains a drive and is a motor wheel.

The combination of the above essential features leads to the fact that:

- this device has increased adhesion forces with the cable, which makes it possible to create cable guides for large masses of cargo and the angles of inclination of the cable to the horizon;

- the use of rolls makes it impossible for the wheels to come off the cable and relieves the load on the side stops of the pulley-shaped wheel protectors, which in turn makes it possible to make wheel protectors from ordinary rubber, this solution allows you to take care of the cable surface and significantly increase its service life.

Thus, a simple, technological device has been created that allows you to transport a person or various goods along a carrying cable.

Brief Description of Drawings

FIG. 1 and FIG. 2 shows a cable duct containing two frames, upper 1 and lower 2.With two wheels 4 on the upper frame 1 and with one wheel 6 on the lower frame 2, where the numbers indicate:

1 - upper frame;

2 - lower frame;

4 - wheels of the upper frame 1;

5 - mountings for wheel axles;

6-wheels of the lower frame 2;

8 - guide roll;

9 - Container with battery and control equipment;

10 - rigid connecting rod of the container;

11 - human seat;

12 - upper flexible connection;

13 - top bar;

15 - bottom bar;

16 - bottom flexible connection;

17 - steering wheel;

18 - retainer

FIG. 3 shows a cable drive, with three wheels 4 on the upper frame 1 and with two wheels 6 on the lower frame 2 (the container with the battery and the person's seat are not shown)

1 - upper frame;

2 - lower frame;

3 - carrying cable;

4 - wheels of the upper frame 1;

6 - wheels of the lower frame 2;

7 - damping springs;

8 - guide roll.

FIG. 4 shows a section of the rotation unit 14, where the numbers indicate:

13 - top bar;

15 - bottom bar.

FIG. 5 shows a diagram of the carriage (cable duct) in perspective.

Implementation and examples of implementation of the invention

Below is an example of a specific implementation of the proposed solution, which does not limit the options for its implementation.

The device according to the invention is a cable car carriage (cable carriage) of FIG. 1 and FIG. 2 consists of two rigid frames 1 and 2, bolted together through damping elements (springs) 7 and located above and below the cable 3, respectively. On each of the frames 1 and 2, along their longitudinal axis, wheels are fixed with the possibility of rotation. The upper frame 1 is equipped with at least two wheels 4 located in series at a distance of at least one wheel diameter plus a gap for wheel rotation. Wheels 4 are attached to the axle mounts 5 rigidly fixed to the frame 1, similar to the fastening of wheels in the fork of a bicycle or scooter. Standard wheels from a Kugoo scooter are used. The wheels can be either driving - a motor wheel, or driven. Wheels 6 are fixed similarly to wheels 4, but on the lower frame 2, during the course of the carriage they rotate in the opposite direction to the wheels 4 located on the upper frame 1. The lower frame 2 has at least one wheel 6, the projection of the axis of which is located strictly in the center of the distance between the projections of the axes of the two wheels 4 of the upper frame 1. With an increase in the number of wheels of the upper frame 1 to three or more, respectively, wheels 4 are added at the lower frame 2 to two or more FIG. 3 but, of course, the rule is observed, each wheel 6 of the lower frame 2 is located centrally between the pairs of wheels 4 of the upper frame 1. Namely, the first lower wheel is between the upper, first and second, and the second lower wheel between the upper second and third, and the third lower between the third and the fourth, etc. Frames 1 and 2 are fixed to each other at a distance (measured relative to the level of the center of attachment of the upper and lower wheels) of at least one wheel diameter with the possibility of adjusting this distance through a damping element - spring 7 using a bolt and nut (not shown in the drawings). Damping springs 7 are installed in the center of the axis of the device in pairs of at least 1 pair from one end of the device and 1 pair from the other, the distance between the springs 7 should be sufficient so as not to touch the cable car cable. The adjustment is carried out by tightening the bolts into the nuts. Thus, due to the possibility of pressing the cable 3 with the wheel (motor wheel) 6 located below, it is possible to create any force and, accordingly, the necessary friction. Thus, the friction limit is bypassed only due to the gravity of the carriage and the load - m * g. It is important to note that this system of two frames with a damping connection between them allows for a smooth running of the carriage and avoids jamming when skewed. In the front and rear parts of the cable guide, there are guiding pairs of rolls 8. installed on the upper and lower frames. The axes of rotation of the rolls are in a vertical plane and perpendicular to the axis of the cable 3. Pairs of rolls 8 are arranged so that the axis of symmetry passes between the rolls and serve to prevent the wheels from coming off the cable. Structurally, the rolls 8 are a steel rotation shaft made of two parts, with a telescopic connection (not shown in the drawings), covered with a layer of softer material, for example, rubber or polyurethane. Such a coating prevents damage to the cable 3. At the same time, the steel rotation shaft (not shown) of the roll 8 is vertically displaceable due to the fact that it is made of two parts, with a telescopic connection, when the distance between the frames 1 and 2 changes.

The container 9 with the battery and control equipment is made in a separate housing of FIG. 1 and through rigid rods 10 is bolted (not shown in the drawings) to the upper frame 1. Such an arrangement of the container 9 makes it possible to make the carriage stable with respect to the cable 3, since the center of gravity is located under the cable 3.

Attaching a basket / platform, etc., or a seat for a person 11 of FIG. 1 is carried to the upper frame 1 by means of a flexible connection 12. The seat attachment assembly consists of two parts, FIG. 1 and 2. The upper flexible connection 12 with the horizontal upper bar 13 and connected through the rotation unit 14 (Fig. 4), with the lower bar 16 and the lower flexible connection 16, on which, for example, the seat 11 and the steering wheel 17 are located.

Rotation unit 14 of FIG. 4 is made hollow to accommodate control wires (not shown). On the lower flexible connection 16 there is a rudder 17 with controls (not shown), throttle, brake and direction of travel (not shown). To fix the chair 11, the latch 18 is used.

Implementation examples

When placing the carriage on the cable, before its movement, the adjustment of the pressing of the wheels to the cable is carried out in advance by pressing the upper and lower frames by screwing the bolts into the nuts of the damping elements. Thanks to this possibility, the necessary friction force is provided for the movement of the carriage. It is important that the friction force is provided not only by the gravity of the person (load) but, to a greater extent, by the adjustable force of pressing the lower carriage to the upper one.

When the carriage moves along the cable, the main load is attached to the upper frame and is located under the cable, this ensures the stability of the carriage relative to the cable axis since the center of gravity is located under the cable.

When the direction of movement of the carriage is changed, the person stops the carriage, pulls the latch 18 downward and rotates about the axis of the flexible connection attachment back and fixes this position with the latch in FIG. 2.

As shown by the experiments carried out by the author, the rolls prevent the wheels from coming off the cable and relieve the load on the side stops of the pulley-shaped wheel protectors, which in turn makes it possible to make the wheel protectors from ordinary rubber. Attempts to solve this problem without rolls led to a complex design of pulley-shaped wheel protectors and, both increasing their cost and reducing the life of the cable.

Claims (6)

1. The carriage of the cable car is a cable car, characterized by the fact that it consists of two rigid frames interconnected by means of at least two pairs of damping elements with a bolt connection and two pairs of guide rolls on one side and the other of the device, with the frames located above and under the cable, along the longitudinal axes of the frames, the wheels are fixed with the possibility of rotation so that the upper frame contains at least two wheels, and the lower one, the projection of the axis of which is located strictly in the center of the distance between the projections of the axes of the upper wheels, contains a basket or platform mount installed at the bottom of the lower frame by means of a flexible connection to the upper frame. 2. The carriage of the cable car - the cable car according to claim 1, characterized in that it includes a container located under the lower frame, fixed by means of rigid rods to the upper frame. 3. The carriage of the cable car - the cable car according to claim 1, characterized in that the fastening of the basket or platform consists of an upper and a lower bar connected through a rotation unit. 4. The carriage of the cable car - the cable car according to claim 1 or 2, characterized in that a battery and control equipment are installed in the container under the lower frame. 5. The carriage of the cable car - the cable drive according to claim 1, characterized in that the guide rolls are a steel rotation shaft made of two parts, with a telescopic connection, covered with a layer of polyurethane or rubber. 6. The carriage of the cable car - the cable car according to claim 1, characterized in that at least one wheel contains a drive and is a motor wheel.

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