Steel wire rope looseness protection device for mine hoist

Abstract

The utility model belongs to the technical field of elevators, and discloses a protective shell. A fixing block is fixedly installed on the side wall of the protective shell, an installation shell is fixedly installed on the protective shell, a circular groove is formed in the installation shell, a protective outer shell is fixedly installed on the outer wall of the protective shell, a first motor is fixedly installed in the protective outer shell, and a second motor is fixedly installed in the first motor. The output end of the first motor penetrates through the protective shell, a rotating column is fixedly mounted on the side wall of the protective shell, when a sensor in a mounting hole of a connecting part of the lifting device senses that the pressure is reduced, the first motor is started, the first motor drives the rotating column to rotate, at the moment, a steel wire rope is driven to rotate, and the steel wire rope is fastened; the loose steel wire rope is tightened, and accidents are prevented.

Description

Technical Field

[0001] This utility model belongs to the field of hoisting technology, specifically a wire rope slack protection device for mine hoists. Background Technology

[0002] Most existing mineral resources are located underground. During mining, hoists are often needed to transport the extracted ore from underground to the surface. One end of the wire rope of the mine hoist is wound on the drum, and the other end passes over the sheave and connects to the hoisting container. In vertical shaft hoisting, rope slack may occur due to reasons such as rope breakage, container jamming, or over-release. In inclined shaft hoisting, when the hook is unhooked, when lifting a heavy load into the slope change point, or after lowering a heavy load into the slope change point, the wire rope may bounce due to speed changes. This can cause the hoisting container to derail or get jammed in the shaft, or result in rope breakage or over-release, leading to rope slack. When wire rope slack occurs, it is necessary to protect it to prevent the hoisting container below from colliding with the shaft sidewall, which could cause the hoisting device to shake or even fall.

[0003] Patent application CN220223138U discloses a wire rope slack protection device for a mine hoist. The device features through holes on the top of both side walls of the hoist, through which the wire rope passes, entering and exiting the hoist. Vertical grooves are located on the front and rear side walls of the hoist, with sliders sliding within these grooves. Springs are mounted on the top of the sliders, with both ends fixedly connected to the grooves and the top of the sliders, respectively. A pulley is rotatably mounted on the side of the two sliders that are close to each other, and the wire rope passes over this pulley. A pair of light curtain sensors are located on the left and right side walls of the hoist. When the pulley falls into the light curtain area formed by the sensors, an alarm is triggered. An audible and visual alarm is also present on the signal box. This invention, when the wire rope experiences slight slack, uses the springs to move the sliders downwards, causing the pulleys to move downwards and tighten the wire rope. If the wire rope continues to slack, the pulleys will enter the light curtain area, triggering the alarm. The device has a simple structure and a sensitive response.

[0004] The problem addressed by the aforementioned patent document occurs in the middle section of the wire rope. However, since the middle section of the wire rope is less affected by environmental factors during operation, it is less prone to failure. On the other hand, the connection between the wire rope and the hoisting device is more prone to slack and other failures due to the greater stress and the presence of a damp and dusty vertical shaft environment. If the slack is not tightened, it can lead to malfunctions of the hoisting device or the risk of collision with the wall. Utility Model Content

[0005] The purpose of this utility model is to provide a wire rope slack protection device for mine hoists to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a wire rope slack protection device for mine hoists, comprising a protective shell:

[0007] A fixing block is fixedly installed on the side wall of the protective shell, and an mounting shell is fixedly installed on the protective shell. A circular groove is opened on the mounting shell. A protective shell is fixedly installed on the outer wall of the protective shell. A first motor is fixedly installed inside the protective shell. A rotating column is fixedly installed at the output end of the first motor through the protective shell and the side wall of the protective shell.

[0008] Preferably, the bottom plate of the protective shell below the rotating column has two rectangular slots, and a lifting device connection part is provided in the rectangular slot. The lifting device connection part has an installation hole, a steel wire rope is installed in the installation hole, a rope clamp is provided on the steel wire rope, and a sensor is provided in the installation hole.

[0009] Preferably, the rotating column has a fastening hole, the wire rope passes through the fastening hole on the rotating column, and a toothed ring is fixedly installed on the rotating column.

[0010] Preferably, the protective shell has a rectangular groove, a guide rod is fixedly installed on the side wall of the rectangular groove, a sliding plate is slidably installed on the guide rod, and a rack is fixedly installed on the bottom surface of the sliding plate, the rack meshing with a toothed ring.

[0011] Preferably, a push rod is fixedly installed on the sliding plate, an installation groove is provided on the top of the protective shell next to the rectangular groove, a slider is slidably installed on the side wall of the installation groove, and a warning plate is rotatably installed in the installation groove next to the slider.

[0012] Preferably, a rectangular plate is fixedly installed on the sliding plate, a connecting block is fixedly installed on the side wall of the rectangular plate, a guide wheel is provided on the connecting block, and the rectangular plate is located inside the mounting shell.

[0013] The beneficial effects of this utility model are as follows:

[0014] 1. This utility model, by setting a rotating column with a fastening hole, will start the first motor when the sensor in the mounting hole of the lifting device connection senses a decrease in pressure. The first motor will drive the rotating column to rotate, which will drive the wire rope to rotate and fasten it, so that the slack wire rope is tightened to prevent accidents.

[0015] 2. By setting a rectangular plate and guide wheel, the steel wire rope will be tightened when the rotating column rotates. At this time, the steel wire rope will bend, and the tension of the hoist on the steel wire rope will tilt. The oblique tension will cause the hoisting device to rise unevenly. At this time, under the action of the guide wheel, the oblique force will be converted back to the vertical direction, which can prevent the hoisting device from shaking.

[0016] 3. This utility model, by setting a warning plate, will drive the push rod to move when the sliding plate moves. The push rod moves and squeezes the slider. After the slider moves, it will squeeze the warning plate, causing the warning plate to rotate. When the warning plate stands up, it will remind the staff that the tightening effect of the wire rope has reached its maximum and the wire rope needs to be inspected or replaced. Attached Figure Description

[0017] Figure 1 This is a structural diagram of the present invention;

[0018] Figure 2 This is a diagram showing the internal structure of the protective shell in this utility model;

[0019] Figure 3 This is an internal structural diagram of the protective shell from another angle in this utility model;

[0020] Figure 4 This is a diagram showing the internal structure of the mounting shell in this utility model;

[0021] Figure 5 This is a top view of the protective shell in this utility model;

[0022] Figure 6 This is a side view of the warning panel in this utility model.

[0023] In the diagram: 1. Protective shell; 2. Mounting shell; 3. Fixing block; 4. Lifting device connecting part; 5. Wire rope body; 6. Rotating column; 7. Gear ring; 8. Rope clamp; 9. First motor; 10. Protective shell; 11. Rack; 12. Sliding plate; 13. Guide rod; 14. Rectangular plate; 15. Connecting block; 16. Guide wheel; 17. Push rod; 18. Warning plate; 19. Slider; 20. Block; 21. Fastening hole; 22. Mounting groove; 23. Rectangular groove. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] like Figures 1 to 6 As shown, this utility model embodiment provides a wire rope slack protection device for mine hoists, including a protective shell:

[0026] A fixing block 3 is fixedly installed on the side wall of the protective shell 1. An mounting shell 2 is fixedly installed on the protective shell 1. A circular groove is opened on the mounting shell 2. A protective shell 10 is fixedly installed on the outer wall of the protective shell 1. A first motor 9 is fixedly installed inside the protective shell 10. A rotating column 6 is fixedly installed at the output end of the first motor 9 through the protective shell 10 and the side wall of the protective shell 1.

[0027] The working principle and beneficial effects of the above technical solution are as follows: When the first motor 9 starts, it will drive the rotating column 6 to rotate. After the rotating column 6 rotates, it will fasten the wire rope body 5 through the fastening hole 21 on the rotating column 6.

[0028] In one embodiment: such as Figure 2 As shown, two rectangular slots 23 are provided on the bottom plate of the protective shell 1 below the rotating column 6. A lifting device connection part 4 is provided at the rectangular slot 23. An installation hole is provided on the lifting device connection part 4. A wire rope body 5 is installed in the installation hole. A rope clamp 8 is provided on the wire rope body 5. A sensor is provided in the installation hole.

[0029] The working principle and beneficial effects of the above technical solution are as follows: When the sensor in the mounting hole on the lifting device connection part 4 senses a decrease in pressure, it indicates that the wire rope body 5 has become loose. At this time, the sensor will automatically start the first motor 9.

[0030] In a specific embodiment: such as Figure 2 and Figure 3 As shown, a fastening hole 21 is provided on the rotating column 6, the main body 5 of the steel wire rope passes through the fastening hole 21 on the rotating column 6, and a toothed ring 7 is fixedly installed on the rotating column 6.

[0031] The working principle and beneficial effects of the above technical solution are as follows: When the rotating column 6 rotates, the wire rope body 5 can be fastened through the fastening hole 21. At the same time, the rotating column 6 will drive the toothed ring 7 to rotate.

[0032] In one embodiment: such as Figure 5 As shown, a rectangular groove 23 is provided on the protective shell 1, a guide rod 13 is fixedly installed on the side wall of the rectangular groove 23, a sliding plate 12 is slidably installed on the guide rod 13, and a rack 11 is fixedly installed on the bottom surface of the sliding plate 12. The rack 11 meshes with the toothed ring 7.

[0033] The working principle and beneficial effects of the above technical solution are as follows: when the gear ring 7 rotates, it will drive the rack 11 to move. When the rack 11 moves, it will drive the sliding plate 12 to move. The sliding plate 12 will slide on the guide rod 13.

[0034] In one embodiment: such as Figure 5 and6 As shown, a push rod 17 is fixedly installed on the sliding plate 12, and an installation groove 22 is provided on the top of the protective shell 1 next to the rectangular groove 23. A slider 19 is slidably installed on the side wall of the installation groove 22, and a warning plate 18 is rotatably installed in the installation groove 22 next to the slider 19.

[0035] The working principle and beneficial effects of the above technical solution are as follows: when the sliding plate 12 moves, it will drive the push rod 17 to move. The movement of the push rod 17 will squeeze the slider 19 to move. When the slider 19 moves, it will squeeze the warning plate 18, thereby causing the warning plate 18 to rotate.

[0036] In one embodiment: such as Figure 4 As shown, a rectangular plate 14 is fixedly installed on the sliding plate 12, and a connecting block 15 is fixedly installed on the side wall of the rectangular plate 14. A guide wheel 16 is provided on the connecting block 15, and the rectangular plate 14 is located inside the mounting shell 2.

[0037] The working principle and beneficial effects of the above technical solution are as follows: When the sliding plate 12 moves, it will drive the rectangular plate 14 to move, thereby driving the guide wheel 16 on the rectangular plate 14 to move, so that the guide wheel 16 is in close contact with the steel wire rope body 5 after it is fastened, and the force direction of the steel wire rope body 5 is transferred to the vertical direction.

[0038] Working principle and usage process: The protective shell 1 is fixed to the top of the lifting device using the fixing block 3. Then, the wire rope body 5 is inserted into the mounting shell 2 and the protective shell 1, passing through the fastening hole 21 on the rotating column 6, then through the mounting hole on the lifting device connection part 4, and finally secured by the rope clamp 8. When the sensor in the mounting hole on the lifting device connection part 4 senses a decrease in pressure, it indicates that the wire rope body 5 has become loose. At this time, the sensor will automatically start the first motor 9. After the first motor 9 starts, it will drive the rotating column 6 to rotate. After the rotating column 6 rotates, it will fasten the wire rope body 5 through the fastening hole 21 on the rotating column 6. At the same time, the rotation of the rotating column 6 will... The toothed ring 7 rotates, which in turn moves the rack 11. The rack 11 moves, which in turn moves the sliding plate 12. The sliding plate 12 slides on the guide rod 13. When the sliding plate 12 moves, it moves the rectangular plate 14, which in turn moves the guide wheel 16 on the rectangular plate 14. This causes the guide wheel 16 to press tightly against the secured wire rope body 5, transferring the force on the wire rope body 5 to the vertical direction. At the same time, when the sliding plate 12 moves, it moves the push rod 17. The push rod 17 moves, which presses the slider 19. When the slider 19 moves, it presses the warning plate 18, causing the warning plate 18 to rotate and alert the workers.

[0039] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0040] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A slack rope protection device for a mine hoist, characterized in that It include protection shell (1) and installation shell (2): The inner wall of the protection shell (1) is rotatably provided with a rotating column (6), a fastening hole (21) is formed in the rotating column (6), a steel wire rope body (5) is arranged in the fastening hole (21), a protective shell (10) is fixedly installed on the outer wall of the protection shell (1), a first motor (9) is fixedly installed inside the protective shell (10), the output end of the first motor (9) is fixedly connected with the rotating column (6) through the side wall of the protective shell (10) and the protection shell (1), two grooves are formed in the bottom plate of the protection shell (1) below the rotating column (6), a lifting device connecting part (4) is arranged at the grooves, an installation hole is formed in the lifting device connecting part (4), the steel wire rope body (5) is installed in the installation hole, a rope clamp (8) is arranged on the steel wire rope body (5), and a sensor is arranged in the installation hole.

2. A slack rope protection device for a mine hoist as defined in claim 1, characterized in that A rectangular groove (23) is formed in the protection shell (1), a guide rod (13) is fixedly installed on the side wall of the rectangular groove (23), a sliding plate (12) is slidably installed on the guide rod (13), a gear rack (11) is fixedly installed on the bottom surface of the sliding plate (12), and the gear rack (11) is in meshing connection with a gear ring (7).

3. A slack rope protection device for a mine hoist as defined in claim 2, characterized in that: A push rod (17) is fixedly installed on the sliding plate (12), an installation groove (22) is formed in the top of the protection shell (1) beside the rectangular groove (23), a block (20) is slidably installed on the side wall of the installation groove (22), a sliding block (19) is fixedly installed on the block (20), and a warning plate (18) is rotatably installed in the installation groove (22).

4. A slack rope protection device for a mine hoist as defined in claim 3, characterized in that: A rectangular plate (14) is fixedly installed on the sliding plate (12), a connecting block (15) is fixedly installed on the side wall of the rectangular plate (14), a guide wheel (16) is arranged on the connecting block (15), and the rectangular plate (14) is located inside the installation shell (2).

5. A slack rope protection device for a mine hoist as defined in claim 4, characterized in that: A fixed block (3) is fixedly installed on the side wall of the protection shell (1), the protection shell (1) is fixedly installed with the installation shell (2), and a circular groove is formed in the installation shell (2).

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