Cable turnover device of coal mining machine

Abstract

The utility model discloses a coal mining machine cable turnover device which comprises a fixed seat, a penetrating hole for a cable to penetrate through is formed in the fixed seat, an annular rotating seat is coaxially and rotatably arranged in the penetrating hole, mounting seats are slidably arranged on the inner ring side of the rotating seat in a circumferential array mode, and clamping wheels are rotatably arranged on the mounting seats. And the mounting seat is driven to slide close relative to the axis of the rotating seat, so that the clamping wheel rolls to clamp the cable. According to the cable turnover device of the coal mining machine, the rotary seat is driven to drive the mounting seat and the clamping wheel to synchronously rotate, so that the clamping wheel drives a cable to axially turn over, the cable does not need to be manually turned over, actual use is facilitated, the cable can adaptively axially slide while axially turning over, and the cable turnover device is simple in structure, convenient to use and high in practicability. The problem that the cable skin is wrinkled or cracked due to axial tension caused by torsional force and external friction force in the overturning process of the cable is solved, and the cable protection performance is improved.

Description

Technical Field

[0001] This utility model relates to the field of flipping device technology, and more specifically to a coal mining machine cable flipping device. Background Technology

[0002] Coal mining machines are one of the important pieces of equipment for realizing the mechanization and modernization of coal mine production. Mechanized coal mining can reduce physical labor, improve safety, and achieve the goals of high output, high efficiency, and low consumption. There are four types of coal mining machines: sawing type, planing type, drilling type, and milling type. A coal mining machine is a large and complex system that integrates mechanics, electrical and hydraulics, and it works in a harsh environment.

[0003] According to announcement number CN218829032U, announcement date: April 7, 2023, a coal mining machine cable turning device is disclosed, which relates to the technical field of cable turning devices. It solves the problem that manual turning of cables in existing technologies is time-consuming and labor-intensive. The device includes a fixing plate with expansion bolts installed at its corners, and fixing nuts threaded onto the expansion bolts. A support plate is fixedly connected to one side of the fixing plate. It also includes a rotating ring rotatably connected to the support plate, with a groove on the rotating ring. This coal mining machine cable turning device, by setting up a turning component and a fixing component, drives the cable to rotate, thus turning the cable, thereby solving the problem of time-consuming and labor-intensive manual turning of cables in existing technologies.

[0004] In the prior art including the aforementioned patent, a clamping plate is used to clamp the cable in a clamping tube, and the cable is flipped by rotating the clamping tube. However, since the clamping plate is used to squeeze and clamp the cable, the cable cannot move axially. During the flipping process, the cable will be subjected to torsional force and external friction, resulting in a large axial tension. Therefore, when the clamping plate clamps and flips the cable, the cable sheath is easily subjected to axial tension, causing wrinkles or cracks. Utility Model Content

[0005] The purpose of this invention is to provide a coal mining machine cable reversing device to solve the above-mentioned problems.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a coal mining machine cable turning device, including a fixed base with an insertion hole for passing a cable through it, a ring-shaped rotating base coaxially rotatably arranged inside the insertion hole, and mounting bases arranged in a circumferential array on the inner ring side of the rotating base, with a clamping wheel rotatably arranged on the mounting base. The mounting base is driven to slide closer to the axis of the rotating base so that the clamping wheel rolls to clamp the cable, and the rotation axis of the clamping wheel is perpendicular to the axis of the rotating base.

[0007] Preferably, the annular circumferential surface of the clamping wheel is concave to fit the cable surface, and a plurality of annular grooves are also spaced apart on the annular circumferential surface of the clamping wheel.

[0008] Preferably, the first end of the rotating seat is provided with a mounting annular groove, and airbag components are arranged in a circumferential array in the mounting annular groove. The fixed seat is provided with a protrusion extending into the mounting annular groove. The rotating seat is driven to rotate so that the protrusion is squeezed and disengaged from several airbag components in sequence.

[0009] Preferably, the airbag component is provided with an extension portion extending to the inner ring surface of the rotating seat, and the extension portion is provided with an air jet groove communicating with the interior of the airbag component, the air jet groove being inclined toward the inner ring side of the rotating seat.

[0010] Preferably, the fixed base is provided with a drive gear, a worm gear and a drive motor, the rotating base is provided with a gear ring, the drive gear is rotatably coupled to the gear ring, the worm gear is fixedly connected to the output end of the drive motor, and the worm gear is coupled to the worm wheel provided on the drive gear.

[0011] Preferably, a shield is arranged in a circumferential array on the inner ring side of the rotating seat. The shield is located between the mounting seat and the clamping wheel, and the mounting seat slides through the shield.

[0012] In the above technical solution, the coal mining machine cable turning device provided by this utility model has the following beneficial effects: the rotating seat drives the mounting seat and the clamping wheel to rotate synchronously, thereby causing the clamping wheel to drive the cable to turn axially. There is no need for manual turning of the cable, which is convenient for practical use. Moreover, since the clamping wheel does not limit the axial movement of the cable, the cable can also slide axially while turning axially, which avoids the problem of the cable sheath being subjected to axial tension due to torsional force and external friction during the turning process, thus improving the protection of the cable. Attached Figure Description

[0013] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this utility model. For those skilled in the art, other drawings can be obtained based on these drawings.

[0014] Figure 1 A schematic diagram of the overall structure provided for an embodiment of this utility model;

[0015] Figure 2 This is a schematic cross-sectional view of the overall structure of an embodiment of the present utility model;

[0016] Figure 3 A cross-sectional view of the overall airbag component provided for an embodiment of this utility model;

[0017] Figure 4 Provided for the embodiments of this utility model Figure 2 A magnified view of a portion of point A in the middle;

[0018] Figure 5 An exploded view of the rotating seat, mounting seat, and clamping wheel provided in an embodiment of this utility model.

[0019] Explanation of reference numerals in the attached figures:

[0020] 1. Fixed base; 11. Through hole; 12. Protrusion; 2. Rotating base; 21. Gear ring part; 22. Mounting ring groove; 23. Movable groove; 3. Mounting base; 4. Clamping wheel; 41. Annular groove; 5. Elastic element; 6. Airbag part; 61. Extension part; 611. Air jet groove; 7. Shielding part; 81. Drive gear; 811. Worm gear part; 82. Worm part; 83. Drive motor; 9. Start button. Detailed Implementation

[0021] To make the objectives, technical solutions, and advantages of the embodiments of this disclosure clearer, the technical solutions of the embodiments of this disclosure will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this disclosure. All other embodiments obtained by those skilled in the art based on the described embodiments of this disclosure without creative effort are within the scope of protection of this disclosure.

[0022] like Figure 1-5 As shown, a coal mining machine cable turning device includes a fixed base 1 with an insertion hole 11 for passing a cable through it. A ring-shaped rotating base 2 is coaxially rotatably arranged inside the insertion hole 11. An mounting base 3 is slidably arranged in a circular array on the inner ring side of the rotating base 2. A clamping wheel 4 is rotatably arranged on the mounting base 3. The mounting base 3 is driven to slide closer to the axis of the rotating base 2 so that the clamping wheel 4 rolls and clamps the cable. The rotation axis of the clamping wheel 4 is perpendicular to the axis of the rotating base 2.

[0023] Specifically, such as Figure 2As shown, the mounting base 3 is slidably disposed in the movable groove 23 of the rotating base 2, and the mounting base 3 is arranged radially along the rotating base 2, allowing the cable to pass through the insertion hole 11 of the fixed base 1. At this time, the cable is also located on the inner ring side of the rotating base 2. Subsequently, several mounting bases 3 are driven to slide close relative to the axis of the rotating base 2, so that several clamping wheels 4 simultaneously clamp and contact the cable to radially clamp and fix the cable. Since the rotation axis of the clamping wheel 4 is perpendicular to the axis of the rotating base 2, the cable can still move axially, which facilitates the actual laying of the cable. When it is necessary to drive the cable to flip, the rotating base 2 is driven to drive the mounting base 3 and the clamping wheel 4 to rotate synchronously, thereby causing the clamping wheel 4 to drive the cable to flip axially. There is no need for manual flipping of the cable, which is convenient for actual use. Since the clamping wheel 4 does not limit the axial movement of the cable, the cable can also slide axially while flipping axially, avoiding the problem of the cable sheath being subjected to axial tension due to torsional force and external friction during the flipping process, which causes wrinkles or cracks, thus improving the protection of the cable.

[0024] An electric push rod can be installed inside the rotating base 2 to drive the mounting base 3 to slide relative to the axis of the rotating base 2, or an airbag can be used to push the mounting base 3 to slide. Alternatively, other drive structures known to those skilled in the art that can drive the mounting base 3 to slide can be used instead.

[0025] For cables with smaller diameters, an elastic element 5, such as a spring, can be installed inside the rotating base 2 to drive the mounting base 3 to slide, thereby simplifying the internal structure of the rotating base 2 and improving its durability.

[0026] In the above technical solution, the rotating seat 2 drives the mounting seat 3 and the clamping wheel 4 to rotate synchronously, thereby causing the clamping wheel 4 to drive the cable to rotate axially. This eliminates the need for manual cable rotation, making it convenient for practical use. Furthermore, since the clamping wheel 4 does not limit the axial movement of the cable, the cable can also slide axially while rotating axially. This avoids the problem of the cable sheath being subjected to axial tension due to torsional force and external friction during the rotation process, which can cause wrinkles or cracks, thus improving the protection of the cable.

[0027] As a further embodiment provided by this utility model, the annular circumferential side of the clamping wheel 4 is concave arc-shaped to fit the cable surface, and a plurality of annular grooves 41 are also spaced apart on the annular circumferential side of the clamping wheel 4.

[0028] Specifically, such as Figure 4As shown, the annular circumferential surface of the clamping wheel 4 is concave to increase the contact area when the clamping wheel 4 contacts the cable surface, thereby improving the clamping stability of the clamping wheel 4 on the cable. Furthermore, several annular grooves 41 are spaced apart on the annular circumferential surface of the clamping wheel 4 to further increase the friction between the clamping wheel 4 and the cable surface. When the cable moves axially, the presence of the annular grooves 41 can also prevent the clamping wheel 4 from squeezing stones or debris that may adhere to the cable surface, thus avoiding damage to the cable sheath.

[0029] As a further embodiment of this utility model, the first end of the rotating seat 2 is provided with a mounting annular groove 22, and airbag components 6 are arranged in a circumferential array in the mounting annular groove 22. The fixed seat 1 is provided with a protrusion 12 extending into the mounting annular groove 22. The rotating seat 2 is driven to rotate so that the protrusion 12 is squeezed and disengaged from several airbag components 6 in sequence.

[0030] Specifically, such as Figure 5 As shown, the left end of the rotating seat 2 is the first end. The rotating seat 2 is provided with a mounting groove 22. When the rotating seat 2 rotates to drive the cable to flip through the mounting seat 3 and the clamping wheel 4, the rotating seat 2 also drives several airbag parts 6 to rotate circumferentially to contact and disengage from the protrusion 12 in sequence. At this time, the protrusion 12 squeezes and disengages from several airbag parts 6 in sequence to achieve contact deceleration of the rotating seat 2 and improve the rotational stability of the rotating seat 2.

[0031] As a further embodiment provided by this utility model, the airbag component 6 is provided with an extension portion 61 extending to the inner ring surface of the rotating seat 2. The extension portion 61 is provided with a jet groove 611 communicating with the interior of the airbag component 6. The jet groove 611 is inclined toward the inner ring side of the rotating seat 2.

[0032] Specifically, such as Figure 5 As shown, the extension 61 of the airbag component 6 extends to the inner ring surface of the rotating seat 2 so that the jet groove 611 is tilted towards the inner ring side of the rotating seat 2. When the rotating seat 2 drives several airbag components 6 to rotate and contact the protrusion 12, the protrusion 12 squeezes and separates from several airbag components 6 in sequence, so that the gas in the airbag component 6 is squeezed and sprayed out along the jet groove 611, thereby blowing out and removing stones or dust that may fall into the inner ring side of the rotating seat 2, improving the protection of the cable and the rotating seat 2.

[0033] As a further embodiment provided by this utility model, the fixed base 1 is provided with a drive gear 81, a worm gear 82 and a drive motor 83, and the rotating base 2 is provided with a gear ring portion 21. The drive gear 81 is rotatably coupled to the gear ring portion 21. The worm gear 82 is fixedly connected to the output end of the drive motor 83, and the worm gear 82 is coupled to the worm wheel portion 811 provided on the drive gear 81.

[0034] Specifically, such as Figure 5As shown, the drive gear 81 is rotatably coupled to the gear ring 21, the worm gear 82 is fixedly connected to the output end of the drive motor 83, and the worm gear 82 is coupled to the worm wheel 811 provided on the drive gear 81. The drive motor 83 can drive the worm gear 82 to rotate, and the worm gear 82 drives the drive gear 81 to rotate the rotating seat 2 through the worm wheel 811. The worm gear 82 and the worm wheel 811 are used to achieve rotational self-locking of the rotating seat 2, thereby improving the clamping stability of the rotating seat 2 on the cable.

[0035] Secondly, a start button 9 for starting and stopping the drive motor 83 is also provided on the fixed base 1. The start button 9, the drive motor 83 and the electrical connection between them are common technical knowledge to those skilled in the art, and will not be described in detail here.

[0036] As a further embodiment provided in this utility model, a shielding member 7 is arranged in a circumferential array on the inner ring side of the rotating seat 2. The shielding member 7 is located between the mounting seat 3 and the clamping wheel 4, and the mounting seat 3 slides through the shielding member 7.

[0037] Specifically, a shield 7 is arranged in a circular array on the inner ring side of the rotating seat 2. The shield 7 is located between the mounting seat 3 and the clamping wheel 4, so that when debris on the cable sheath falls into the rotating seat 2, the debris will not fall into the sliding gap of the mounting seat 3, thereby improving the sliding stability of the mounting seat 3 and increasing its service life.

[0038] The foregoing description only illustrates certain exemplary embodiments of the present invention. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A cable reversing device for a coal mining machine, characterized in that, The device includes a fixed base (1) with an insertion hole (11) for passing a cable through it. A ring-shaped rotating base (2) is coaxially rotatably arranged inside the insertion hole (11). A mounting base (3) is slidably arranged in a circular array on the inner side of the rotating base (2). A clamping wheel (4) is rotatably arranged on the mounting base (3). The mounting base (3) is driven to slide closer to the axis of the rotating base (2) so that the clamping wheel (4) rolls and clamps the cable. The rotation axis of the clamping wheel (4) is perpendicular to the axis of the rotating base (2).

2. The coal mining machine cable reversing device according to claim 1, characterized in that, The annular circumferential surface of the clamping wheel (4) is concave arc-shaped to fit the surface of the cable, and a number of annular grooves (41) are also spaced apart on the annular circumferential surface of the clamping wheel (4).

3. The coal mining machine cable reversing device according to claim 2, characterized in that, The first end of the rotating seat (2) is provided with a mounting annular groove (22), and airbag components (6) are arranged in a circumferential array in the mounting annular groove (22). The fixed seat (1) is provided with a protrusion (12) extending into the mounting annular groove (22). The rotating seat (2) is driven to rotate so that the protrusion (12) is squeezed and disengaged from several airbag components (6) in sequence.

4. The coal mining machine cable reversing device according to claim 3, characterized in that, The airbag component (6) is provided with an extension (61) extending to the inner ring surface of the rotating seat (2). The extension (61) is provided with a jet groove (611) communicating with the interior of the airbag component (6). The jet groove (611) is inclined toward the inner ring side of the rotating seat (2).

5. A coal mining machine cable reversing device according to claim 1, characterized in that, The fixed base (1) is provided with a drive gear (81), a worm gear (82) and a drive motor (83). The rotating base (2) is provided with a gear ring (21). The drive gear (81) is rotatably coupled to the gear ring (21). The worm gear (82) is fixedly connected to the output end of the drive motor (83), and the worm gear (82) is coupled to the worm wheel (811) provided on the drive gear (81).

6. The coal mining machine cable reversing device according to claim 1, characterized in that, The rotating seat (2) has a circumferential array of shielding members (7) arranged on the inner ring side. The shielding members (7) are located between the mounting seat (3) and the clamping wheel (4), and the mounting seat (3) slides through the shielding members (7).

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