Cable trough antiskid device

Abstract

The utility model provides an anti-skid device for a cable trough, which comprises a rotating shaft rotationally arranged on the cable trough, and an anti-skid block fixedly connected below a pressing angle and used for pressing components in the cable trough on the rotating shaft. The rotating shaft rotates to enable the anti-skid block to be close to or far away from the baffle plate of the cable trough; the rotating axis of the rotating shaft is parallel to the height direction of the baffle; a first limiting mechanism for limiting the downward moving position of the rotating shaft and a second limiting mechanism for limiting the upward moving position of the rotating shaft are respectively arranged between the rotating shaft and the cable trough; and an angle limiting mechanism for fixing the rotating shaft at a pressing angle and loosening the rotating shaft to enable the rotating shaft to rotate again is also arranged between the rotating shaft and the cable trough. The device is simple in structure and convenient to install. The cable clamp can be effectively prevented from sliding down, and the risks of cable damage and people injury accidents are reduced; and the tool state and the non-working state are convenient to switch, and the cost is low.

Description

Technical Field

[0001] This utility model belongs to the field of scraper conveyors, and specifically relates to an anti-slip device for cable troughs. Background Technology

[0002] Scraper conveyors are key equipment in mechanized coal mining, used to transport coal cut by the mining machine from the working face to the roadway transfer conveyor. Their structure consists of a head section, a middle trough, and a tail section. An electric motor drives a sprocket, which in turn drives the scraper chain in a cyclical motion, achieving continuous coal transport. During operation, the scraper conveyor's cable system is used for power supply and control signal transmission. With the development of intelligent and efficient coal mining, the operation of scraper conveyor cables faces numerous challenges.

[0003] As the dip angle of the working face varies unevenly, and the slope gradually increases, the stacked cable clamps, pulled by the coal mining machine, suddenly overcome the damping of frictional resistance and slide down, collide, or even veer out of the cable trough due to inertia. This cable clamp slippage can lead to loose or damaged connections between cables and equipment, causing the coal mining machine and other equipment to shut down due to power loss, increasing equipment maintenance time and costs, and reducing production efficiency. Furthermore, frequent cable clamp slippage will force the coal mining machine to stop multiple times for repairs, disrupting the normal mining rhythm and reducing coal production at the working face.

[0004] In existing technologies, anti-slip measures for cable troughs typically rely on simple mechanical binding or anti-slip rubber. While these methods can prevent cable slippage to some extent, their effectiveness is not ideal in steep working faces or complex conditions. Patent CN214900112U discloses an automatic anti-slip device for cable chains in fully mechanized mining faces, which uses anti-slip plates to apply lateral pressure to the cable chain; however, the pressure of the anti-slip plates needs to be adjusted via a motor and eccentric wheel, requiring numerous components, occupying a large space, resulting in high costs and a relatively complex structure. There is a need for an anti-slip device for cable troughs that is simple in structure, low in cost, and easy to install. Summary of the Invention

[0005] This utility model provides a cable trough anti-slip device.

[0006] The purpose of this utility model is achieved in the following manner: a cable trough anti-slip device includes a rotating shaft rotatably mounted on the cable trough, and an anti-slip block fixedly connected to the rotating shaft at a pressing angle for pressing components in the cable trough; the rotating shaft rotates to allow the anti-slip block to move closer to or further away from a baffle of the cable trough; the rotation axis of the rotating shaft is parallel to the height direction of the baffle; a first limiting mechanism restricting the downward movement of the rotating shaft and a second limiting mechanism restricting the upward movement of the rotating shaft are respectively provided between the rotating shaft and the cable trough; an angle limiting mechanism is also provided between the rotating shaft and the cable trough to fix the rotating shaft at the pressing angle and to allow the rotating shaft to rotate again when it is released.

[0007] The angle limiting mechanism includes a retainer fixedly mounted on a cable trough, the rotating shaft passing through the central hole of the retainer and coaxial with the retainer; at least two limiting grooves are provided on the upper surface of the retainer along the circumference; a limiting block that mates with the limiting grooves is fixedly connected to the rotating shaft, and the limiting block mates with different limiting grooves to achieve positioning of the rotating shaft at different angles; the first limiting mechanism and the second limiting mechanism enable the limiting block to switch between disengaging from and entering the limiting groove during the up and down movement of the rotating shaft.

[0008] The cable trough includes a baffle plate near the center of the trough on the front side, and a horizontal plate on the back side of the baffle plate; the card holder is disposed on the upper surface of the horizontal plate, the limiting groove is not a through hole, and the upper surface of the limiting groove and the limiting block constitute the first limiting mechanism; the lower end of the rotating shaft passes through the horizontal plate and is provided with a lower limiting member; the lower surface of the horizontal plate and the lower limiting member constitute the second limiting mechanism.

[0009] On the side of the horizontal plate away from the baffle, there are several upright plates arranged at intervals facing upwards. The card holder is located between two adjacent upright plates. A steel pipe is provided at the upper end of the upright plate. The upper end of the rotating shaft passes through the steel pipe and is provided with a handle at the upper end.

[0010] The pivot is an L-shaped pin, and the handle is the upper bend of the L-shaped pin; the lower limit member is a D-shaped clip set at the lower end of the L-shaped pin, and the limit block is a cotter pin that passes through the L-shaped pin.

[0011] The rotating shaft passes through the sleeve at its middle position and is detachably connected to the sleeve; the anti-slip block is fixedly connected to one side of the sleeve.

[0012] The sleeve includes a tubular body and a cuboid disposed on one side of the tubular body. The end of the cuboid away from the pivot is detachably connected to the anti-slip block, which is made of rubber.

[0013] Compared to existing technologies, this invention has a simple structure and is easy to install. Installing this invention in multi-section cable troughs effectively prevents cable clamps from slipping, reducing the risk of cable damage and personal injury; moreover, it allows for convenient switching between tooling and non-working states, and is cost-effective. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the working state of this utility model.

[0015] Figure 2 This is a schematic diagram of the cable tray and the mounting bracket.

[0016] Figure 3 yes Figure 2 Enlarged view of the central cassette section.

[0017] Figure 4 This is a schematic diagram showing the fit between the rotating shaft, sleeve, anti-slip block, lower limit component, and limit block.

[0018] Figure 5 This is a schematic diagram of the rotating shaft.

[0019] Figure 6 This is a schematic diagram of the anti-slip block.

[0020] Figure 7 This is a schematic diagram of a sleeve.

[0021] Figure 8 This is a schematic diagram of the other side of the sleeve.

[0022] Figure 9 This is a schematic diagram of the non-working state of this utility model.

[0023] Among them, 1 is the pivot, 10 is the handle, 2 is the cable trough, 20 is the baffle, 21 is the horizontal plate, 22 is the vertical plate, 23 is the steel pipe, 3 is the card seat, 30 is the limiting groove, 31 is the center hole, 4 is the limiting block, 5 is the lower limiting component, 6 is the anti-slip block, 60 is the countersunk hole, 7 is the sleeve, and 70 is the threaded hole. Detailed Implementation

[0024] In this utility model, unless otherwise expressly specified and limited, the technical terms used in this application shall have the ordinary meaning understood by those skilled in the art. Terms such as "connected," "linked," "fixed," and "set" shall be interpreted broadly, referring to fixed connections, detachable connections, or integral connections; direct connections or indirect connections via an intermediate medium; mechanical connections or electrical connections. Unless otherwise expressly specified and limited, "above" or "below" a second feature may mean that the first and second features are in direct contact or indirect contact via an intermediate medium. Furthermore, "above," "on top of," or "over" a second feature may mean that the first feature is directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," or "under" a second feature may mean that the first feature is directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature. Relational terms such as "first," "second," etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. The terms used in the description, such as “center,” “lateral,” “longitudinal,” “length,” “width,” “thickness,” “height,” “front,” “rear,” “left,” “right,” “up,” “down,” “vertical,” “horizontal,” “top,” “bottom,” “inner,” “outer,” “axial,” “radial,” “circumferential,” “clockwise,” and “counterclockwise,” indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation.

[0025] The technical solution of this utility model will be clearly and completely described below with reference to the accompanying drawings and specific embodiments. Figure 1-9As shown, a cable trough anti-slip device includes a rotating shaft 1 rotatably mounted on a cable trough 2, with an anti-slip block 6 fixedly connected to the rotating shaft 1. Rotation of the rotating shaft 1 causes the anti-slip block 6 to move closer to or further away from a baffle 20 of the cable trough 2. The rotation axis of the rotating shaft 1 is parallel to the height direction of the baffle 20. A first limiting mechanism restricting downward movement of the rotating shaft 1 and a second limiting mechanism restricting upward movement of the rotating shaft 1 are respectively provided between the rotating shaft 1 and the cable trough 2. An angle limiting mechanism is also provided between the rotating shaft 1 and the cable trough 2 to fix the rotating shaft 1 at a pressing angle and to release the rotating shaft 1 to allow it to rotate again. At the pressing angle, the anti-slip block 6 presses against components in the cable trough 2. The cable trough 2 includes a baffle 20 on the front side near the middle of the trough, and a horizontal plate 21 on the back side of the baffle 20. Several upward-facing, spaced-apart vertical plates 22 are provided on the side of the horizontal plate 21 away from the baffle 20, and steel pipes 23 are provided at the upper ends of the vertical plates 22. The cable trough 2 has an existing structure. The rotation axes of the rotating shaft 1 and the anti-slip block 6 are parallel to the height direction of the baffle 20. This parallelism is approximate; a slight angular deviation can also achieve the desired technical effect. When the distance between the end of the anti-slip block 6 furthest from the rotating shaft 1 and the baffle 20 becomes smaller or minimized, the anti-slip block 6 can press against the components in the cable trough 2, providing an anti-slip function. Cable clamps and other components are provided in the cable trough 2 as needed. The first and second limiting mechanisms can be common existing limiting mechanisms, such as bolts, pins, D-type clips, and the baffle 20, as long as they can prevent the rotating shaft 1 from disengaging vertically. The angle limiting mechanism can limit only the pressing angle or other angles. The angle limiting mechanism can have various structures, such as limiting through slots and blocks, or by setting limiting holes and bolts, holes, and pins on both sides of the pressing position. The rotating shaft 1, the first limiting mechanism, the second limiting mechanism, and the angle limiting mechanism can be directly installed on the relevant parts of the cable trough 2, or indirectly installed on the cable trough 2 through other structures. The anti-slip block 6 and the rotating shaft 1 can be fixedly connected or detachably connected; they can be directly connected or indirectly connected through other components.

[0026] The angle limiting mechanism includes a retainer 3 fixedly mounted on the cable trough 2. The rotating shaft 1 passes through the central hole 31 of the retainer 3 and is coaxial with the retainer 3. At least two limiting grooves 30 are provided along the circumference of the upper surface of the retainer 3. A limiting block 4 that cooperates with the limiting grooves 30 is fixedly connected to the rotating shaft 1. The limiting block 4 cooperates with different limiting grooves 30 to achieve positioning of the rotating shaft 1 at different angles. The first limiting mechanism and the second limiting mechanism enable the limiting block 4 to switch between disengaging from and entering the limiting grooves 30 during the up-and-down movement of the rotating shaft 1. Preferably, the central hole 31 and the limiting grooves 30 are connected, and the limiting grooves 30 are radially distributed, as shown in the attached figure. Of course, the central hole 31 and the limiting grooves 30 may not be connected. In this case, the limiting block 4 needs to be provided with a downward-facing groove to cross the area between the central hole 31 and the limiting grooves 30. The first and second limiting mechanisms do not completely restrict the rotating shaft 1 from moving up and down, but maintain a certain distance to ensure that the limiting block 4 can move downwards and disengage from the limiting groove 30. At this time, the rotating shaft 1 and the anti-slip block 6 can rotate together. After the anti-slip block 6 rotates to the predetermined pressing position or the predetermined releasing position, the limiting block 4 also rotates to the other limiting groove 30. The rotating shaft 1 is moved downwards until the limiting block 4 is re-engaged in the limiting groove 30, thus fixing the angle. In this utility model, the contact surface between the base 3 and the bottom surface of the limiting block 4 can itself serve as the first limiting surface for restricting the downward movement of the rotating shaft 1. If the limiting groove 30 of the card holder 3 is connected to the central hole 31 and both are through holes, then the card holder 3 and the bottom surface of the limiting block 4 do not contact each other. In this case, the card holder 3 cannot be used as the first limiting mechanism, and a special first limiting mechanism needs to be set to restrict the downward movement distance of the rotating shaft 1. For example, a lateral protrusion or a locking pin can be set on the rotating shaft 1 as the first limiting mechanism, and a blocking component can be set on the cable groove 2 at a certain position below the first limiting mechanism. These are all within the protection scope of this utility model.

[0027] The cable trough 2 includes a baffle 20 on the front near the center of the trough, and a horizontal plate 21 on the back of the baffle 20; the card holder 3 is disposed on the upper surface of the horizontal plate 21; the limiting groove 30 is not a through hole, and the upper surface of the limiting groove 30 and the limiting block 4 constitute the first limiting mechanism; the lower end of the rotating shaft 1 passes through the horizontal plate 21 and is provided with a lower limiting member 5; the lower surface of the horizontal plate 21 and the lower limiting member 5 constitute the second limiting mechanism. The lower limiting member 5 and the rotating shaft 1 are detachably connected, for example, by a pin.

[0028] On the side of the horizontal plate 21 away from the baffle 20, several upward-facing, spaced-apart vertical plates 22 are arranged. The card holder 3 is positioned between two adjacent vertical plates 22. A steel pipe 23 is provided at the upper end of each vertical plate 22, and the upper end of the rotating shaft 1 passes through the steel pipe 23 and has a handle 10 at its upper end. The handle 10 can be formed by bending the upper end of the rotating shaft 1, or it can be a separate part fixed to the rotating shaft 1 by welding or bolts.

[0029] The rotating shaft 1 is an L-shaped pin, and the handle 10 is the upper bend of the L-shaped pin; the lower limiting member 5 is a D-shaped clip located at the lower end of the L-shaped pin, and the limiting block 4 is a cotter pin that passes through the L-shaped pin. A small hole corresponding to the cotter pin is provided on the L-shaped pin near its lower end.

[0030] The rotating shaft 1 passes through the sleeve 7 at its middle position and is detachably connected to the sleeve 7; the anti-slip block 6 is fixedly connected to one side of the sleeve 7. The rotating shaft 1 and the sleeve 7 can be connected via a hole and pin, such as a cotter pin, or other existing connection methods. The sleeve 7 and the anti-slip block 6 can be integrally formed or separately formed and fixed together. For example, a threaded hole 70 can be provided on the side of the sleeve 7 away from the rotating shaft 1, and a countersunk hole 60 can be provided at the corresponding position on the anti-slip block 6, and they can be fixed together with bolts. In this invention, different sizes of sleeve 7 and anti-slip block 6 can be replaced according to actual needs on site, such as the size of the cable clamp in the cable trough 2, to adapt to different situations and facilitate clamping the cable clamp.

[0031] The sleeve 7 includes a tubular body and a cuboid disposed on one side of the tubular body. The end of the cuboid away from the rotating shaft 1 is detachably connected to the anti-slip block 6, which is made of rubber.

[0032] This invention features a simple structure and convenient installation. Installing this structure in a multi-section cable trough 2 effectively prevents the cable clamps from slipping, reducing the risk of cable damage and personal injury; moreover, it allows for easy switching between tooling and non-working states, and is cost-effective.

[0033] In specific implementation: When installing the anti-slip device for cable trough 2, first, the L-shaped pin, which serves as the rotating shaft 1, is passed through the hole on the steel pipe 23 of the cable trough 2, and then sequentially through the sleeve 7 and the retainer 3 fixed to the upper surface of the horizontal plate 21. The end of the rotating shaft 1 located below the horizontal plate 21 of the cable trough 2 is fixed by a D-shaped clip, which serves as the lower limit member 5. Next, the hole on the sleeve 7 is aligned with the upper pin hole of the L-shaped pin, and a cotter pin is passed through the sleeve 7 and the L-shaped pin for fixation. Then, the cotter pin, which serves as the limit block 4, is driven into the corresponding hole of the L-shaped pin, which serves as the rotating shaft 1. Note that one end of the cotter pin should not protrude at this time. In the attached diagram, the upper two holes of the L-shaped pin correspond to the sleeve 7, the third hole corresponds to the limit block 4, and the lowermost hole corresponds to the lower limit member 5. Finally, the anti-slip block 6 is fixed to the sleeve 7 with bolts, completing the installation of the entire anti-slip device.

[0034] When the anti-slip device of cable trough 2 needs to be in working condition, pull the rotating shaft 1 upward to disengage the limiting block 4 from the limiting groove 30 of the card seat 3. At this time, the rotating shaft 1 can be rotated until the anti-slip block 6 abuts against the cable clamp, pressing the cable trough 2 inside the cable trough 2. Then, the rotating shaft 1 is moved downward to make the anti-slip block 6 lock in the corresponding limiting groove 30, thereby preventing the anti-slip block 6 from rotating in the working state, effectively preventing the cable from falling off, and achieving a good anti-slip effect. In the attached figure, in the working state, the handle 10 of the L-shaped pin is perpendicular to the steel pipe 23 of the cable trough 2 and faces outward.

[0035] When the anti-slip device of cable trough 2 is not working, pull the rotating shaft 1 upward to disengage the limiting block 4 from the limiting groove 30 of the card seat 3. At this time, the rotating shaft 1 can be rotated in the opposite direction until the anti-slip block 6 releases the cable clamp. Then, move the rotating shaft 1 downward to lock the anti-slip block 6 into the corresponding limiting groove 30, preventing the anti-slip block 6 from rotating. In the attached figure, with the anti-slip device of cable trough 2 not working, from a top view angle, lift the L-shaped pin away from the card seat 3, and rotate the L-shaped pin 90 degrees counterclockwise. The handle 10 of the L-shaped pin is parallel to the steel pipe 23 of cable trough 2, and the anti-slip block 6 is parallel to the steel pipe 23 of cable trough 2. At this time, the anti-slip block 6 will not block the cable clamp, and the anti-slip device of cable trough 2 is not working. This is suitable for working surfaces with flat surfaces.

[0036] The technical features of the embodiments described above can be combined in any way, and as long as there is no contradiction in the combination of these technical features, they should all be considered within the scope of this specification. Without departing from the overall concept of this utility model, any equivalent substitutions or modifications made to the technical solution of this utility model, as well as any changes and improvements, should also be considered within the protection scope of this utility model.

Claims

1. A cable trough anti-slip device, characterized in that: The device includes a rotating shaft rotatably mounted on a cable trough, with a slider fixedly connected to the shaft at a clamping angle for clamping components within the cable trough. Rotation of the shaft causes the slider to move closer to or further away from a baffle in the cable trough. The axis of rotation of the shaft is parallel to the height direction of the baffle. A first limiting mechanism restricting downward movement of the shaft and a second limiting mechanism restricting upward movement of the shaft are respectively provided between the shaft and the cable trough. An angle limiting mechanism is also provided between the shaft and the cable trough to fix the shaft at the clamping angle and to allow the shaft to rotate again when released.

2. The anti-slip device for cable troughs according to claim 1, characterized in that: The angle limiting mechanism includes a retainer fixedly mounted on a cable trough, the rotating shaft passing through the central hole of the retainer and coaxial with the retainer; at least two limiting grooves are provided on the upper surface of the retainer along the circumference; a limiting block that mates with the limiting grooves is fixedly connected to the rotating shaft, and the limiting block mates with different limiting grooves to achieve positioning of the rotating shaft at different angles; the first limiting mechanism and the second limiting mechanism enable the limiting block to switch between disengaging from and entering the limiting groove during the up and down movement of the rotating shaft.

3. The anti-slip device for cable troughs according to claim 2, characterized in that: The cable trough includes a baffle plate near the center of the trough on the front side, and a horizontal plate on the back side of the baffle plate; the card holder is disposed on the upper surface of the horizontal plate, the limiting groove is not a through hole, and the upper surface of the limiting groove and the limiting block constitute the first limiting mechanism; the lower end of the rotating shaft passes through the horizontal plate and is provided with a lower limiting member; the lower surface of the horizontal plate and the lower limiting member constitute the second limiting mechanism.

4. The anti-slip device for cable troughs according to claim 3, characterized in that: On the side of the horizontal plate away from the baffle, there are several upright plates arranged at intervals facing upwards. The card holder is located between two adjacent upright plates. A steel pipe is provided at the upper end of the upright plate. The upper end of the rotating shaft passes through the steel pipe and is provided with a handle at the upper end.

5. The anti-slip device for cable troughs according to claim 4, characterized in that: The pivot is an L-shaped pin, and the handle is the upper bend of the L-shaped pin; the lower limit member is a D-shaped clip set at the lower end of the L-shaped pin, and the limit block is a cotter pin that passes through the L-shaped pin.

6. The anti-slip device for cable troughs according to any one of claims 1-5, characterized in that: The rotating shaft passes through the sleeve at its middle position and is detachably connected to the sleeve; the anti-slip block is fixedly connected to one side of the sleeve.

7. The anti-slip device for cable troughs according to claim 6, characterized in that: The sleeve includes a tubular body and a cuboid disposed on one side of the tubular body. The end of the cuboid away from the pivot is detachably connected to the anti-slip block, which is made of rubber.

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