Cable anti-friction device for underground trackless equipment

Abstract

The utility model belongs to the technical field of carry-scraper cable protection, and discloses an underground trackless equipment cable anti-friction device, which comprises an L-shaped mounting rod, the mounting rod is fixedly mounted on the side wall of a mine tunnel, and the surface of the mounting rod is rotatably connected with a plurality of elastic expansion buffer mechanisms at equal intervals. When the device is dragged and impacted by a cable, the compression plate I and the compression plate II are forced to contract by pressure, the pressure is transmitted to the buffer spring through the rolling shaft to be absorbed, and meanwhile, due to movement friction of the cable, the compression plate I and the compression plate II are compressed by the rolling shaft, so that the compression plate I and the compression plate II are prevented from being damaged. When the cable is extruded and pulled, the contraction armored sleeve and each expansion buffer mechanism rotate correspondingly, so that sliding friction is converted into rolling friction to sequentially reduce frictional resistance on the cable, the cable is effectively prevented from being extruded and pulled, and the effects of protecting the life safety of workers and prolonging the service life of equipment can be achieved.

Description

Technical Field

[0001] The utility model belongs to the technical field of cable protection for scrapers, and in particular relates to an anti-friction device for cables of underground trackless equipment. Background Art

[0002] Common trackless live equipment in modern underground mines include electric scrapers, rock drilling rigs, deep hole rigs, and skidding rigs.

[0003] For example, electric scrapers use cables that are typically around 150 meters long. During operation, as the scraper turns, the cables can rub against the bedrock along the tunnel walls, causing them to scrape and even get stuck in cracks. This can easily wear, tear, or even break the cables, leading to electric shock accidents. Currently, there is no specific technical solution to this problem. Utility Model Content

[0004] The purpose of the utility model is to provide an anti-friction device for cables of underground trackless equipment to solve the above-mentioned problems in the prior art.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] An anti-friction device for cables of underground trackless equipment comprises an L-shaped mounting rod fixedly mounted on the side wall of a mine tunnel, a plurality of elastic expansion and buffer mechanisms rotatably connected to the surface of the mounting rod at equal intervals, a plurality of expansion and buffer mechanisms being externally sheathed with shrinking armor sleeves, each of which being externally sheathed with a wear-resistant elastic sleeve, a mounting turntable being rotatably connected to the mounting rod near its bottom end, the bottom of the shrinking armor sleeve being in close contact with the top of the mounting turntable;

[0007] The shrinking armor sleeve is a cylindrical structure composed of two opposite compression plates 1 and two compression plates 2. A number of slide grooves are provided in the middle of the compression plate 2 at equal intervals along the vertical direction. The left and right sides of the compression plate 1 close to the central axis of the shrinking armor sleeve are fixedly connected to the corresponding slide grooves with slide buckles. The two slide buckles on the same side and the same horizontal plane of the two compression plates are slidably connected to the corresponding slide grooves, and each expansion buffer mechanism is tensioned by the inside.

[0008] In a preferred embodiment of the present utility model, the expansion buffer mechanism includes a cylindrical mounting seat, the cross-section of the cylindrical mounting seat is I-shaped, and several rotating shafts are evenly arranged vertically around the cylindrical mounting seat and are rotatably connected. One side of the rotating shaft is fixedly connected to one end of the expansion lining, and the other end of the expansion lining is rotatably connected to a roller, and the roller rolls close to the inner wall of the shrinking armor sleeve. A buffer spring is fixedly connected between the expansion lining and the cylindrical mounting seat, and a bearing is fixedly installed in the middle of the inner hole of the cylindrical mounting seat, and the inner ring of the bearing is fixedly connected to the mounting rod.

[0009] In a preferred embodiment of the present invention, the expansion liner is an arc-shaped plate, and its curvature matches the curvature of the cylindrical mounting seat.

[0010] In a preferred embodiment of the present invention, the first compression plate and the second compression plate are both arc-shaped plates, and their central origins coincide with each other, and the concave surface of the first compression plate slides closely against the convex surface of the second compression plate.

[0011] In a preferred embodiment of the present invention, the cross section of the slider is in an "umbrella" shape, and the center origin of the second compression plate falls on the central axis of the slider.

[0012] In a preferred embodiment of the present invention, the mounting rod is made of round steel and is installed at the corner of the mine tunnel. Its horizontal end and vertical end are respectively inserted into the mounting holes opened on the ground of the side wall of the mine tunnel, and the mounting holes are fixed by pouring resin glue.

[0013] The beneficial effects of the utility model are:

[0014] When the device is hit by the drag of the cable, the pressure forces the compression plate 1 and the compression plate 2 to contract and transmit the pressure to the buffer spring through the roller for absorption. At the same time, due to the movement friction of the cable, the contraction armor sleeve and the expansion buffer mechanisms rotate accordingly, thereby converting the sliding friction into rolling friction, which in turn reduces the friction resistance of the cable, thereby effectively preventing the cable from being squeezed and pulled, thereby protecting the lives of workers and extending the service life of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the overall three-dimensional structure of the utility model;

[0016] Figure 2 This is a schematic diagram of the three-dimensional explosion structure of the utility model;

[0017] Figure 3 Schematic diagram of the three-dimensional structure of the expansion buffer mechanism;

[0018] Figure 4This is a schematic diagram of the cross-sectional structure of the shrink armor sleeve at the slide groove.

[0019] Figure numerals; among them, 1, mounting rod; 2, shrinking armor sleeve; 21, compression plate 1; 211, slide buckle; 22, compression plate 2; 221, slide groove; 3, wear-resistant elastic sleeve; 4, shelf turntable; 5, expansion buffer mechanism; 51, cylinder mounting seat; 52, roller; 53, buffer spring; 54, expansion lining; 55, rotating shaft; 56, bearing. DETAILED DESCRIPTION

[0020] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the present invention will be briefly introduced below in conjunction with the drawings and the description of the embodiments or the prior art. Obviously, the following description of the structures of the drawings is only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative work. It should be noted that the description of these embodiments is used to help understand the present invention, but does not constitute a limitation of the present invention.

[0021] Example:

[0022] like Figure 1-4 As shown, this embodiment provides an anti-friction device for underground trackless equipment cables, including an L-shaped mounting rod 1, which is fixedly installed on the side wall of a mine tunnel. The surface of the mounting rod 1 is equidistantly connected to a plurality of elastic expansion buffer mechanisms 5, the outer sleeves of the plurality of expansion buffer mechanisms 5 are provided with shrinking armor sleeves 2, and the outer sleeves of the shrinking armor sleeves 2 are provided with wear-resistant elastic sleeves 3. The mounting rod 1 is rotatably connected to a shelf turntable 4 near the bottom end, and the bottom of the shrinking armor sleeve 2 is in close contact with the top of the shelf turntable 4.

[0023] The shrinking armor sleeve 2 is a cylindrical structure composed of two opposite compression plates 1 21 and two compression plates 22. Several slide grooves 221 are opened at equal intervals along the vertical direction in the middle of the compression plate 22. The left and right sides of the compression plate 1 21 close to the central axis of the shrinking armor sleeve 2 are fixedly connected with slide buckles 211 corresponding to each slide groove 221. The two slide buckles 211 on the same side and the same horizontal plane of the two compression plates 1 21 are slidably connected to the corresponding slide groove 221. Each expansion buffer mechanism 5 is internally tensioned by the expansion buffer mechanism 5.

[0024] In a preferred embodiment of the present utility model, further, the expansion buffer mechanism 5 includes a cylindrical mounting seat 51, the cross-section of the cylindrical mounting seat 51 is I-shaped, and several rotating shafts 55 are evenly arranged vertically around the cylindrical mounting seat 51 and rotatably connected. One side of the rotating shaft 55 is fixedly connected to one end of the expansion lining 54, and the other end of the expansion lining 54 is rotatably connected to a roller 52, and the roller 52 rolls close to the inner wall of the shrinking armor sleeve 2. A buffer spring 53 is fixedly connected between the expansion lining 54 and the cylindrical mounting seat 51, and a bearing 56 is fixedly installed in the middle of the inner hole of the cylindrical mounting seat 51, and the inner ring of the bearing 56 is fixedly connected to the mounting rod 1.

[0025] Specifically, in order to prevent the cable from being strongly rubbed, scratched, or even stuck in the gap when the electric scraper turns with the scraper during operation, which may easily cause the cable to be worn, torn, or even broken, resulting in safety accidents such as electric shock, a mounting rod 1 is set at the corner of the tunnel as an installation base, and at least two expansion buffer mechanisms 5 are equidistantly rotated on the surface of the mounting rod. The expansion buffer mechanism 5 is connected to at least two expansion plates by rotating around its cylindrical mounting seat 51. Under the action of the buffer spring 53, it flips outward and makes the roller 52 at its end close to the shrink armor sleeve 2. , thereby tensioning each compression plate 1 21 and compression plate 2 22 from the inside, so that the shrinking armor sleeve 2 is expanded into a circular shape. When the cable is dragged and hit, the pressure forces the compression plates 1 21 and 22 to shrink and transmit the pressure to the buffer spring 53 through the roller 52 for absorption. At the same time, due to the movement friction of the cable, the shrinking armor sleeve 2 and each expansion buffer mechanism 5 rotate accordingly, thereby converting the sliding friction into rolling friction, which in turn reduces the friction resistance of the cable, thereby effectively preventing the cable from being squeezed and pulled, thereby protecting the lives of workers and extending the service life of the equipment;

[0026] Furthermore, since the shrinking armor sleeve 2 is an assembled structure, in order to prevent the sharp changes in the assembly gap on its surface from cutting the cable, a wear-resistant elastic sleeve 3 made of plastic or other materials is provided on its outside to make the surface of the device smooth, effectively preventing damage to the cable. After the cable passes the corner, the device can be reset by the force of the buffer spring 53.

[0027] In a preferred embodiment of the present invention, further, the expansion lining plate 54 is an arc-shaped plate, and its curvature matches the curvature of the cylindrical mounting seat 51 .

[0028] In a preferred embodiment of the present invention, further, the compression plate 1 21 and the compression plate 2 22 are both arc-shaped plates, and their center origins coincide with each other, and the concave surface of the compression plate 1 21 slides tightly against the convex surface of the compression plate 2 22 .

[0029] In a preferred embodiment of the present invention, further, the cross section of the slider 211 is in an “umbrella” shape, and the center origin of the second compression plate 22 falls on the central axis of the slider 211 .

[0030] In a preferred embodiment of the present invention, further, the mounting rod 1 is made of round steel and is installed at the corner of the mine tunnel. Its horizontal end and vertical end are respectively inserted into the mounting holes opened on the ground of the mine tunnel side wall, and the mounting holes are fixed by pouring resin glue.

[0031] Finally, it should be noted that the above are only preferred embodiments of the present invention and are not intended to limit the scope of protection of the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included in the scope of protection of the present invention.

Claims

1. An anti-friction device for underground trackless equipment cables, characterized by: The invention comprises an L-shaped mounting rod (1), wherein the mounting rod (1) is fixedly mounted on the side wall of a mine tunnel, and a plurality of elastic expansion buffer mechanisms (5) are equidistantly rotatably connected to the surface of the mounting rod (1), and the outer sleeves of the plurality of expansion buffer mechanisms (5) are provided with shrinking armor sleeves (2), and the outer sleeves of the shrinking armor sleeves (2) are provided with wear-resistant elastic sleeves (3). The mounting rod (1) is rotatably connected to a shelf turntable (4) near the bottom end, and the bottom of the shrinking armor sleeve (2) is in close contact with the top of the shelf turntable (4); The shrinking armor sleeve (2) is a cylindrical structure composed of two opposite compression plates (1) (21) and two compression plates (22). A plurality of slide grooves (221) are provided at equal intervals in the vertical direction in the middle of the compression plates (22). The left and right sides of the compression plates (21) close to the central axis of the shrinking armor sleeve (2) are fixedly connected to the corresponding slide grooves (221). The two slide buckles (211) on the same side and the same horizontal plane of the two compression plates (21) are slidably connected to the corresponding slide grooves (221). Each expansion buffer mechanism (5) is tensioned by the inside of the expansion buffer mechanism (5).

2. The cable anti-friction device for underground trackless equipment according to claim 1, characterized in that: The expansion buffer mechanism (5) includes a cylindrical mounting seat (51), the cross section of the cylindrical mounting seat (51) is I-shaped, and a plurality of rotating shafts (55) are evenly arranged vertically around the cylindrical mounting seat (51) and are rotatably connected. One side of the rotating shaft (55) is fixedly connected to one end of the expansion lining (54), and the other end of the expansion lining (54) is rotatably connected to a roller (52), and the roller (52) rolls closely against the inner wall of the shrinking armor sleeve (2). A buffer spring (53) is fixedly connected between the expansion lining (54) and the cylindrical mounting seat (51), and a bearing (56) is fixedly installed in the middle of the inner hole of the cylindrical mounting seat (51), and the inner ring of the bearing (56) is fixedly connected to the mounting rod (1).

3. The cable anti-friction device for underground trackless equipment according to claim 2, characterized in that: The expansion lining plate (54) is an arc-shaped plate, and its curvature matches the curvature of the cylindrical mounting seat (51).

4. The cable anti-friction device for underground trackless equipment according to claim 3, characterized in that: The compression plate 1 (21) and the compression plate 2 (22) are both arc-shaped plates, and their central origins coincide with each other. The concave surface of the compression plate 1 (21) slides tightly against the convex surface of the compression plate 2 (22).

5. The cable anti-friction device for underground trackless equipment according to claim 4, characterized in that: The cross section of the slider (211) is in an "umbrella" shape, and the center origin of the second compression plate (22) falls on the central axis of the slider (211).

6. The cable anti-friction device for underground trackless equipment according to claim 5, characterized in that: The mounting rod (1) is made of round steel and is installed at the corner of the mine tunnel. Its horizontal end and vertical end are respectively inserted into the mounting holes opened on the ground of the mine tunnel side wall, and the mounting holes are fixed by injecting resin glue.

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