CN214887051U

CN214887051U - Cable traction tension overload protection device for coal mining machine in coal mine

Info

Publication number: CN214887051U
Application number: CN202120704147.4U
Authority: CN
Inventors: 赵幸辉
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-04-07
Filing date: 2021-04-07
Publication date: 2021-11-26
Anticipated expiration: 2031-04-07

Abstract

The utility model discloses a coal mine machine cable pulls pulling force overload protection device, including guard box and cable body, and the cable body runs through the inside through the guard box, the internally mounted of guard box has multiunit draw gear, and draw gear and cable body case contact, the one end fixedly connected with safety cover of guard box, one side of draw gear is equipped with the lift slide bar, and the lift slide bar runs through the guard box and extends to the inside of safety cover. The device is through the specification and the pulling force parameter that use the cable, set up adjusting device's parameter, make it be in the peak value of overload parameter, after the cable body transships, the cable can push up the lift slide bar, make linkage alarm device can send out the police dispatch newspaper, in time inform the staff, in the police dispatch newspaper, it can control drive mechanism, it is dead to lock the cable body that makes it quick, avoid lasting dragging the damage that leads to the cable body, influence the normal function of coal-winning machine.

Description

Cable traction tension overload protection device for coal mining machine in coal mine

Technical Field

The utility model relates to a colliery technical field specifically is a colliery coal-winning machine cable pulls pulling force overload protection device.

Background

A coal mining machine is one of main devices of fully mechanized mining complete equipment. The coal mining machine is developed and evolved from a coal cutter, the coal mining machine is a large-scale complex system integrating machinery, electricity and hydraulic pressure, the working environment is severe, and if a fault occurs, the whole coal mining work is interrupted, so that huge economic loss is caused.

Present cable pulling force overload protection device provides certain buffering or locks the cable when the cable takes place to transship usually, avoids the tensile damage that the cable lasts to the realization is to the overloaded protection of cable pulling force, however, because transship the back in the twinkling of an eye locks fast moving's cable dead, this can lead to the cable to lock the pulling force that receives in the twinkling of an eye greatly, makes the cable damage fracture more easily, and then influences the normal work of associated equipment.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a colliery coal-winning machine cable pulls pulling force overload protection device to solve the problem that proposes in the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme:

a cable traction tension overload protection device of a coal mining machine for a coal mine, which comprises a protection box and a cable body, and the cable body penetrates through the inside of the protection box, a plurality of groups of traction devices are arranged in the protection box, and the traction device is contacted with the cable body box, one end of the protection box is fixedly connected with a protection cover, one side of the traction device is provided with a lifting slide bar which penetrates through the protection box and extends to the interior of the protection cover, a linkage alarm device is arranged in the protective cover, two ends of the linkage alarm device are respectively contacted with the lifting slide bar and the traction device box, a clamping block welded with the lifting slide bar is arranged inside the protection box and is contacted with the cable body, the outer wall of the lifting slide rod is connected with an adjusting device in a sliding mode, the adjusting device is welded with the inner wall of the protection box, and a push plate which is in contact with the clamping block is welded on the clamping block close to the traction device.

As a further aspect of the present invention: draw gear includes the solid fixed cylinder, and the solid fixed cylinder welding has the slider on the inner wall of guard box, has the spring in the inside sliding connection of guard box, the welding has the spring between the one end of slider and the inner wall of solid fixed cylinder, is equipped with the stopper in one side of solid fixed cylinder, and the stopper welds with the one end that the spring was kept away from to the slider, has the spacing of support in the both sides welding of stopper, the outer wall of stopper be equipped with the fly leaf that supports spacing looks adaptation. And the one end of fly leaf extends to the inside of stopper, fixedly connected with buffer spring between the inner wall of fly leaf and stopper, buffer spring's one end welding is kept away from to the fly leaf has the extrusion piece, rotates in one side that the inner wall of stopper is close to the extrusion piece and is connected with the leading wheel, and the cable body is located between leading wheel and the extrusion piece.

As a further aspect of the present invention: linkage alarm equipment includes and rotates the linkage press plate of being connected with the guard box, and the linkage press plate uses the axis of rotation to install respectively inside safety cover and guard box as central both ends, has the alarm warning light in one side sliding connection of safety cover, and the alarm warning light rotates with the linkage press plate to be connected, one side of alarm warning light advances the welding with the inner wall of safety cover to be connected the conducting strip, and the linkage press plate one side of keeping away from the alarm warning light contacts with the lift slide bar.

As a further aspect of the present invention: the adjusting device comprises an adjusting box, the adjusting box is welded with the inner wall of a protection box, a lantern ring is arranged inside the adjusting box and welded with a lifting slide rod, sliding plates are installed on two sides of the inner wall of the adjusting box, the lantern ring is located between the two sets of sliding plates, one end, away from the sliding plates, of the inner wall of the adjusting box is welded with a magnetic attraction piece, and the magnetic attraction piece and the lantern ring are magnetically attracted.

As a further aspect of the present invention: one side that adjusting device kept away from traction equipment is equipped with guard box welded regulation pivot, the outer wall of adjusting the pivot rotates and is connected with the multiunit and connects the wall, and the one end of keeping away from the regulation pivot at the connection wall rotates and comes na sister to have the sleeve, and magnetism piece runs through inside the sleeve.

Compared with the prior art, the beneficial effects of the utility model are that: the device is through the specification and the pulling force parameter that use the cable, set up adjusting device's parameter, make it be in the peak value of overload parameter, after the cable body transships, the cable can push up the lift slide bar, make linkage alarm device can send out the police dispatch newspaper, in time inform the staff, in the police dispatch newspaper, it can control drive mechanism, it is dead to lock the cable body that makes it quick, avoid lasting dragging the damage that leads to the cable body, influence the normal function of coal-winning machine.

Drawings

Fig. 1 is a schematic structural diagram of a cable traction tension overload protection device of a coal mining machine.

Fig. 2 is a schematic structural diagram of a limiting block of a cable traction tension overload protection device of a coal mining machine.

Fig. 3 is a side view of a traction mechanism in a coal mining machine cable traction tension overload protection device.

Fig. 4 is an enlarged view of a portion A of fig. 1 in the cable traction tension overload protection device of the coal mining machine.

Wherein: 1-a protection box, 2-a fixed cylinder, 3-a slide block, 4-a movable plate, 5-a spring, 6-a guide wheel, 7-a limiting block, 8-a clamping block, 9-an adjusting rotating shaft, 10-a connecting wall, 11-a sleeve, 12-a lifting slide rod, 13-an alarm prompting lamp, 14-a connecting conducting strip, 15-a linkage pressing plate, 16-a pushing plate, 17-a supporting limiting strip, 18-a buffer spring, 19-an extrusion block, 20-a sliding plate, 21-an adjusting box, 22-a magnetic absorption sheet and 23-a cable body.

Detailed Description

It should be noted that, in the present invention, the embodiments and features of the embodiments may be combined with each other without conflict.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are used merely for convenience of description and for simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention. Furthermore, the terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first," "second," etc. may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art through specific situations.

The present invention will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.

Example one

Referring to fig. 1-4, a coal mine mining machine cable traction pulling force overload protection device comprises a protection box 1 and a cable body 23, wherein the cable body 23 penetrates through the interior of the protection box 1, a plurality of groups of traction devices are installed inside the protection box 1 and are in contact with the cable body 23, one end of the protection box 1 is fixedly connected with a protection cover, one side of each traction device is provided with a lifting slide bar 12, each lifting slide bar 12 penetrates through the protection box 1 and extends into the protection cover, a linkage alarm device is arranged inside the protection cover, two ends of the linkage alarm device are respectively in contact with the lifting slide bar 12 and the traction device box, a fixture block 8 welded with the lifting slide bar 12 is arranged inside the protection box 1, the fixture block 8 is in contact with the cable body 23, an adjusting device is connected to the outer wall of the lifting slide bar 12 in a sliding manner and is welded with the inner wall of the protection box 1, be close to draw gear welding at fixture block 8 and have push pedal 16 rather than contacting, when cable body 23 stimulates, draw gear can carry out spacing direction to cable body 23, avoid cable body 23 the bending with knot influence cable body 23's activity, parameter through control regulating box 21, when pulling force is transshipping, lift slide bar 12 rises when the cable can drag fixture block 8, and then when sending out the police dispatch newspaper through linkage alarm device, adjust draw gear, the quick locking to the device, avoid dragging the damage that leads to the cable to cable body 23 continuously.

Please refer to fig. 1-3, further, the traction device includes a fixed cylinder 2, the fixed cylinder 2 is welded on the inner wall of the protection box 1, a sliding block 3 is connected inside the protection box 1 in a sliding manner, a spring 5 is welded between one end of the sliding block 3 and the inner wall of the fixed cylinder 2, a limiting block 7 is arranged on one side of the fixed cylinder 2, the limiting block 7 and one end of the sliding block 3 far away from the spring 5 are welded, supporting limiting strips 17 are welded on two sides of the limiting block 7, and a movable plate 4 matched with the supporting limiting strips 17 is arranged on the outer wall of the limiting block 7. One end of the movable plate 4 extends to the inside of the limiting block 7, a buffer spring 18 is fixedly connected between the movable plate 4 and the inner wall of the limiting block 7, a pressing block 19 is welded at one end of the movable plate 4 far away from the buffer spring 18, one side of the inner wall of the limiting block 7 close to the pressing block 19 is rotatably connected with a guide wheel 6, a cable body 23 is positioned between the guide wheel 6 and the pressing block 19, a push plate 16 which is in contact with the clamping block 8 is welded at the position close to the traction device, the push plate 16 is in contact with the movable plate 4, the cable body 23 between the guide wheel 6 and the pressing block 19 is locked to a certain degree through downward movement of the pressing block 19 by a linkage alarm device, along with the lifting of the pulling of the cable, the gap between the guide wheel 6 and the pressing block 19 is continuously reduced, and the garbage can be timely adjusted by the size of the pulling force of the cable, so as to avoid the condition of cable tension overload, is beneficial to the protection of the cable.

Please refer to fig. 1, further, the linkage alarm device includes a linkage pressing plate 15 rotatably connected to the protection box 1, and the linkage pressing plate 15 is installed inside the protection cover and the protection box 1 respectively with both ends thereof being centered on the rotation axis, and an alarm indicator 13 is slidably connected to one side of the protection cover, and can give an alarm to remind a worker, thereby avoiding damage to the cable, and the alarm indicator 13 is rotatably connected to the linkage pressing plate 15, one side of the alarm indicator 13 and the inner wall of the protection cover are welded with a connection conductive plate 14, and one side of the linkage pressing plate 15 far from the alarm indicator 13 is contacted with the lifting slide bar 12, and the two connection conductive plates 14 are contacted, so as to energize the alarm indicator 13, thereby facilitating work of the alarm indicator 13.

Referring to fig. 1 and 4, further, the adjusting apparatus includes an adjusting box 21, the adjusting box 21 is welded to an inner wall of the protection box 1, a sleeve ring is disposed inside the adjusting box 21 and welded to the lifting slide bar 12, the sliding plates 20 are mounted on two sides of the inner wall of the adjusting box 21, the sleeve ring is located between the two sets of sliding plates 20, the sliding plates 20 can adjust the friction between the sleeve ring and the sliding plates 20 to prevent the cable from being overloaded, so as to protect the cable in real time, a magnetic attraction sheet 22 is welded to one end of the inner wall of the adjusting box 21, which is far away from the sliding plates 20, and the magnetic attraction sheet 22 is magnetically attracted to the sleeve ring, so that the lifting slide bar 12 which rises after being overloaded can be fixed by magnetic attraction, and the lifting slide bar 12 can control the locking of the traction mechanism to prevent the cable from being continuously stretched, thereby protecting the cable to a certain extent.

Referring to fig. 1, further, an adjusting rotating shaft 9 welded to the protection box 1 is disposed on one side of the adjusting device away from the traction device, the outer wall of the adjusting rotating shaft 9 is rotatably connected with a plurality of groups of connecting walls 10, a sleeve 11 is rotatably disposed at one end of the connecting wall 10 away from the adjusting rotating shaft 9, and the magnetic sheet 22 penetrates through the sleeve 11, so that the cable body 23 extending from the inside of the protection box 1 is always kept at a horizontal position, which facilitates connection with a coal mining machine.

The utility model discloses a theory of operation is: when the device is used, a cable passes through the traction device and the fixture block 8 in sequence, the tail end of the cable extends to the outside of the protection box 1, parameters of the adjusting device are set according to specification and parameters of the selected cable, the cable is positioned at the peak value of overload parameters, the lifting slide rod can continuously rise along with continuous improvement of tension, so that the lifting slide rod 12 can control the linkage alarm device to adjust the traction device, the speed of the cable passing through the protection box 1 is controlled, the damage to the cable caused by rapid locking of overload is avoided, the service life of the cable can be effectively prolonged, when the cable body 23 is overloaded, the cable can push up the lifting slide rod 12, the linkage alarm device can give an alarm to inform a worker in time, and the cable body 23 is prevented from being damaged due to continuous pulling of the cable body 23, affecting the normal operation of the coal mining machine.

Although the preferred embodiments of the present patent have been described in detail, the present patent is not limited to the above embodiments, and various changes can be made without departing from the spirit of the present patent within the knowledge of those skilled in the art.

Claims

1. The utility model provides a colliery coal-winning machine cable pulls pulling force overload protection device, includes guard box and cable body, and the cable body runs through the inside through the guard box, its characterized in that: the utility model discloses a cable protection device, including guard box, draw gear, cable body case, linkage alarm equipment, and linkage alarm equipment's both ends contact with lift slide bar and draw gear case respectively, the internally mounted of guard box has multiunit draw gear, and draw gear and cable body case contact, the one end fixedly connected with safety cover of guard box, one side of draw gear is equipped with the lift slide bar, and the lift slide bar runs through the guard box and extends to the inside of safety cover, is equipped with linkage alarm equipment in the inside of guard box, and linkage alarm equipment's both ends contact with lift slide bar and draw gear case respectively, the inside of guard box be equipped with lift slide bar welded fixture block, and the fixture block contacts with the cable body, has adjusting device at the outer wall sliding connection of lift slide bar, and the inner wall welding of adjusting device and guard box.

2. The coal mining machine cable traction tension overload protection device as claimed in claim 1, wherein the traction device comprises a fixed cylinder, the fixed cylinder is welded on the inner wall of the protection box, a slide block is connected in the protection box in a sliding manner, a spring is welded between one end of the slide block and the inner wall of the fixed cylinder, one side of the fixed cylinder is provided with a limit block, the limit block is welded with one end of the slide block, which is far away from the spring, supporting limit strips are welded on two sides of the limit block, the outer wall of the limit block is provided with a movable plate matched with the supporting limit strips, one end of the movable plate extends into the limit block, a buffer spring is fixedly connected between the movable plate and the inner wall of the limit block, one end of the movable plate, which is far away from the buffer spring, is welded with an extrusion block, and one side of the inner wall of the limit block, which is close to the extrusion block, is rotatably connected with a guide wheel, and the cable body is positioned between the guide wheel and the extrusion block, a push plate which is contacted with the clamping block is welded on the clamping block close to the traction device, and the push plate is contacted with the movable plate.

3. The coal mining machine cable traction tension overload protection device according to claim 2, wherein the linkage alarm device comprises a linkage pressing plate which is rotatably connected with the protection box, the linkage pressing plate is respectively installed inside the protection cover and the protection box by taking the rotating shaft as a center, an alarm prompt lamp is slidably connected to one side of the protection cover and is rotatably connected with the linkage pressing plate, a connecting conducting strip is welded to one side of the alarm prompt lamp and the inner wall of the protection cover, and one side of the linkage pressing plate, which is far away from the alarm prompt lamp, is in contact with the lifting slide rod.

4. The coal mining machine cable traction tension overload protection device as claimed in claim 2, wherein the adjusting device comprises an adjusting box, the adjusting box is welded to the inner wall of the protecting box, a sleeve ring is arranged inside the adjusting box and is welded to the lifting slide bar, sliding plates are mounted on two sides of the inner wall of the adjusting box, the sleeve ring is located between the two groups of sliding plates, a magnetic suction piece is welded to one end, far away from the sliding plates, of the inner wall of the adjusting box, and the magnetic suction piece is magnetically sucked with the sleeve ring.

5. The coal mining machine cable traction tension overload protection device as claimed in claim 1, wherein one side of the adjusting device away from the traction device is provided with an adjusting rotating shaft welded with the protection box, the outer wall of the adjusting rotating shaft is rotatably connected with a plurality of groups of connecting walls, a sleeve is arranged at one end of each connecting wall away from the adjusting rotating shaft in a rotating mode, Miss is provided with the sleeve, and the magnetic suction piece penetrates through the sleeve.