CN113148802A

CN113148802A - Accidental falling speed reduction structure for mine hoist

Info

Publication number: CN113148802A
Application number: CN202110437163.6A
Authority: CN
Inventors: 吴开利
Original assignee: Individual
Current assignee: Xiangmei Leader Mining Equipment Co ltd
Priority date: 2021-04-22
Filing date: 2021-04-22
Publication date: 2021-07-23
Anticipated expiration: 2041-04-22
Also published as: CN113148802B

Abstract

The invention provides an accidental falling speed reducing structure for a mine hoist, which comprises a mine and the mine hoist, wherein a falling detection mechanism and a braking mechanism are arranged in the mine, guide rails are longitudinally and fixedly arranged on two sides of the inner wall of the mine, the mine hoist is arranged between two groups of guide rails, support frames are fixedly arranged on two sides of the mine hoist, and the two support frames are symmetrically arranged on the central axis of the mine hoist. According to the invention, by utilizing the lever principle and through arranging the steel wire rope, the movable rod and the brake pad, the steel wire rope can pull the movable rod at the other end to enable the movable rod to rotate outside the rotating shaft, and at the moment, the brake pad at the other end of the movable rod is in contact with the surface of the guide rail, so that the claw hammer-shaped brake pad can be rubbed on the surface of the guide rail to decelerate the elevator, and the elevator is prevented from being stalled and falling, the descending speed is too high, and a better deceleration effect is achieved.

Description

Accidental falling speed reduction structure for mine hoist

Technical Field

The invention relates to the technical field of mine hoists, in particular to an accidental falling speed reducing structure for a mine hoist.

Background

The mine hoist is the main transportation equipment for connecting the underground and the ground in mining engineering. The mine hoist is a hoisting machine which is arranged on the ground and drives a hoisting container to run along a shaft or a slope by means of a steel wire rope. It is used for lifting coal, ore and gangue, lifting personnel, lowering materials, tools and equipment in vertical and inclined shafts.

When the existing mine hoist is used accidentally, the hoist causes stalling and fast falling, the existing speed reduction structure needs a control electronic instrument of a center console to carry out command control, and the control device has the disadvantages of insensitive response and poor safety when in use and imperfect speed limit of the hoist.

Based on the above description to and combine the equipment discovery among the prior art, consequently this design is directed at above-mentioned problem, designs a rational in infrastructure, and functional good mine hoist is with unexpected speed reduction structure device that falls to improve the practicality.

Disclosure of Invention

The invention aims to provide an accidental falling speed reducing structure for a mine hoist, which aims to solve the problem that the processing is not safe and effective enough when the mine hoist is stalled and falls quickly.

The invention relates to an object and an effect of an accidental falling speed reducing structure for a mine hoist, which are achieved by the following specific technical means: the utility model provides a mine is unexpected speed reduction structure that falls for hoist, this mine is unexpected speed reduction structure that falls for hoist include mine, lifting machine, the mine is inside to be equipped with detection mechanism, the stopping mechanism that falls, the equal vertical fixed mounting in mine inner wall both sides has the guide rail, the lifting machine sets up in two sets of between the guide rail, the equal fixed mounting in lifting machine both sides has the support frame, the equal fixed mounting in support frame top has the shell, and slides between shell and the guide rail and cup joint, two the shell top all is connected with the gear through the leg joint, and is provided with the tooth's socket on the guide rail, gear and tooth's socket meshing.

Wherein, the fall detection mechanism includes bevel gear one, bevel gear two, hollow tube, slide bar, extension mechanism, the equal fixed mounting in lifting machine top both sides has the bracing piece, the lifting machine rotates through the bracing piece and is connected with bevel gear one, lifting machine top both sides are close to bracing piece department and all rotate and are connected with the hollow tube, and the hollow tube keeps away from the one end of bevel gear one and be the opening, and the other end is and seals and fixedly connected with bevel gear two, and bevel gear two and bevel gear interlock, the hollow tube inboard slides through the spout and is provided with the slide bar, and passes through spring coupling between slide bar and the hollow tube, and the slide bar is kept away from hollow tube one side and is provided with the lock joint structure.

The supporting frame, the supporting rod and the hollow pipe are symmetrically arranged on the central axis of the elevator, the first bevel gear and the rear side of the gear are coaxially connected with chain wheels, and the first bevel gear and the chain wheels of the gear are synchronously connected through a linkage component.

The extension mechanism comprises a plurality of groups of blades which are fixedly arranged on the periphery of the sliding rod, and the blades are symmetrically arranged on the periphery of the sliding rod.

The clamping structure comprises a chuck II, a rotating rod and a chuck I, the other end of the sliding rod is fixedly provided with the chuck II, one end of the outer shell outside is close to the chuck II and is provided with the rotating rod in a rotating mode, the rotating rod outside is fixedly provided with the chuck I, and the chuck II and the chuck I are arranged in a matching mode through a clamping groove and a clamping block.

Wherein, the mechanism is stopped in the braking includes movable rod, brake block, wire rope and pivot, the pivot rotates and sets up inside the shell, and outside fixed mounting has the movable rod, the equal fixed mounting in movable rod one end top has the part of slowing down, be connected with wire rope between the movable rod other end and the dwang.

Compared with the prior structure, the invention has the following beneficial effects:

1. through being equipped with the blade that is streamlined central symmetry and sets up, can be when the slide bar rotates, the air current will be cut apart into upper and lower two parts by the blade, according to Bernoulli's principle, the local static pressure that the velocity of flow is big, the local static pressure that the velocity of flow is little is big, the upper and lower surface produces ascending pressure differential about will making the blade, it stretches out to drive the slide bar when can making the blade rotate, and make chuck two contact chuck one outside, make and fix between two chucks, reach the effect of real-time linkage, whole structure mechanization safe and reliable more, furthest's the risk that this field easily appears that reduces.

2. Through being equipped with wire rope, movable rod and brake block, can make the movable rod of wire rope pulling other end, make the movable rod rotate in the pivot outside, at this moment the movable rod other end brake block will contact the guide rail surface, can make the brake block of claw hammer form rub on the guide rail surface, slow down the lifting machine, when preventing that the lifting machine stall from falling, the decline speed is too fast, reaches better speed reduction effect.

Drawings

FIG. 1 is a schematic front view of the hoist according to the present invention;

fig. 2 is a partial cross-sectional structural schematic diagram of the front side of the elevator of the invention;

FIG. 3 is a schematic view of the chuck arrangement of the present invention;

FIG. 4 is a partial front cross-sectional structural schematic view of the present invention;

FIG. 5 is a front sectional structural view of a groove according to the present invention;

FIG. 6 is a side sectional view of the bevel gear of the present invention;

FIG. 7 is a side perspective view of the gear of the present invention;

fig. 8 is a front cross-sectional structural schematic diagram of the hoisting machine of the invention.

FIG. 9 is a schematic view of a brake pad according to the present invention.

In the drawings, the corresponding relationship between the component names and the reference numbers is as follows:

1. a mine; 101. a guide rail; 102. a groove; 2. a housing; 201. a gear; 2011. a linkage chain; 202. rotating the rod; 203. a first chuck; 204. a wire rope; 2041. a movable rod; 2042. a rotating shaft; 205. a brake pad; 3. a hoist; 301. a support frame; 302. a support bar; 303. a first bevel gear; 304. a second bevel gear; 305. a hollow tube; 306. a slide bar; 3061. a blade; 307. a second chuck; 4. a chute; 401. a sliding plate; 4011. a torsion spring; 4012. a buffer plate; 402. a spring; 403. an iron plate; 5. an electromagnet.

Detailed Description

In the description of the present invention, "a plurality" means two or more unless otherwise specified; the terms "upper", "lower", "left", "right", "inner", "outer", "front", "rear", "head", "tail", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are only for convenience in describing and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and thus, should not be construed as limiting the invention. Furthermore, the terms "first," "second," "third," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

The first embodiment is as follows:

as shown in figures 1 to 9: the utility model provides a mine hoist is with unexpected speed reduction structure that falls, this mine hoist is with unexpected speed reduction structure that falls includes mine 1, lifting

machine

3, 1 inside detection mechanism that falls that is equipped with of mine, the stopping mechanism that stops, 1 inner wall both sides of mine all vertical fixed mounting have guide rail 101, lifting machine 3 sets up between two sets of guide rail 101, the equal fixed mounting in 3 both sides of lifting machine has support frame 301, the equal fixed mounting in support frame 301 top has shell 2, and slide between shell 2 and the guide rail 101 and cup joint, 2 tops of two shells all are connected with gear 201 through the leg joint, and be provided with the tooth's socket on the guide rail 101, gear 201 and tooth's socket engagement.

As shown in the attached figures 1, 2, 6 and 7: the falling detection mechanism comprises a first bevel gear 303, a second bevel gear 304, a hollow pipe 305, a sliding rod 306 and an extension mechanism, wherein two sides of the top of the elevator 3 are fixedly provided with a supporting rod 302, the elevator 3 is rotatably connected with the first bevel gear 303 through the supporting rod 302, two sides of the top of the elevator 3 close to the supporting rod 302 are rotatably connected with the hollow pipe 305, one end of the hollow pipe 305 far away from the first bevel gear 303 is open, the other end of the hollow pipe 305 is sealed and is fixedly connected with the second bevel gear 304, the second bevel gear 304 is meshed with the first bevel gear 303, the sliding rod 306 is slidably arranged on the inner side of the hollow pipe 305 through a sliding groove, the sliding rod 306 is connected with the hollow pipe 305 through a spring, a buckling structure is arranged on one side of the sliding rod 306 far away from the hollow pipe 305, if the elevator 3 is stalled due to accidental descending, the gear 201 enables the first bevel gear 303 to rotate with acceleration through a linkage chain 2011, the first bevel gear 303 drives the second bevel gear 304 to rotate, at this time, the hollow tube 305 is driven to rotate by the bevel gear II 304.

As shown in the attached fig. 6 and 7: the supporting frame 301, the supporting rod 302 and the hollow tube 305 are symmetrically arranged on the central axis of the hoister 3, the first bevel gear 303 and the rear side of the gear 201 are coaxially connected with chain wheels, and the first bevel gear 303 and the chain wheels of the gear 201 are synchronously connected through a linkage chain 2011.

As shown in figures 2, 3 and 4: the extending mechanism comprises a plurality of groups of blades 3061 fixedly arranged on the periphery of the sliding rod 306, the blades 3061 are symmetrically arranged on the periphery of the sliding rod 306, the hollow tube 305 rotates to drive the sliding rod 306 to rotate simultaneously, the blades 3061 symmetrically arranged on the outer side of the sliding rod 306 in a streamline central mode, when the sliding rod 306 rotates, airflow is divided into an upper part and a lower part by the blades 3061, according to the Bernoulli principle, the static pressure of a place with a large flow velocity is small, the static pressure of a place with a small flow velocity is large, upward pressure difference is generated on the upper surface and the lower surface of the blades 3061, and the sliding rod 306 is driven to extend out when the blades 306.

As shown in figures 2, 3 and 4: the fastening structure comprises a second chuck 307, a rotating rod 202 and a first chuck 203, the other end of the sliding rod 306 is fixedly provided with the second chuck 307, one end of the outer side of the shell 2 is rotatably provided with the rotating rod 202 close to the second chuck 307, the outer side of the rotating rod 202 is fixedly provided with the first chuck 203, the second chuck 307 and the first chuck 203 are arranged in a matched mode through a clamping groove and a clamping block, and when the sliding rod 306 rotates, blades 3061 on the outer side of the sliding rod 306 drive the second chuck 307 on one end of the outer side of the sliding rod 306 to extend out.

As shown in fig. 4, 7 and 9: the braking mechanism comprises a movable rod 2041, a brake pad 205, a steel wire rope 204 and a rotating shaft 2042, the rotating shaft 2042 is rotatably arranged inside the shell 2, the movable rod 2041 is fixedly arranged on the outer side, the brake pad 205 is fixedly arranged above one end of the movable rod 2041, the steel wire rope 204 is connected between the other end of the movable rod 2041 and the rotating rod 202, and the brake pad 205 is in a claw hammer shape.

Example two:

as shown in fig. 1 and 5: a recess 102 is provided in the mine shaft 1.

The invention also comprises a signal triggering type speed reducing mechanism, the signal triggering type speed reducing mechanism is arranged in the groove 102, the signal triggering type speed reducing mechanism comprises a signal transmitter, a signal receiver and a speed reducing mechanism, the speed reducing mechanism comprises an electromagnet 5, a sliding chute 4, a sliding plate 401, a compression spring 402 and an iron plate 403, the electromagnet 5 is arranged on one side of the inner wall of the groove 102 far away from a mine, the bottom end of the sliding plate 401 is provided with a sliding block, the sliding block is matched with the sliding chute 4 and arranged on the bottom wall of the groove 102, the top of the sliding plate 401 is fixedly provided with the iron plate 403, one end of the sliding plate 401 far away from the mine is connected to the inner wall of the groove 102 through the compression spring 402, the signal transmitter is electrically connected with a thermoelectric plate in the brake pad 205, the signal receiver is electrically connected with the electromagnet 5, the signal triggering type mechanism sends out an electric signal by absorbing heat generated by friction through the thermoelectric plate arranged in the brake pad 205 so that the signal transmitter in the brake pad 205 sends out a signal, the signal receiver receives the signal and then controls the speed reducing mechanism to perform speed reducing action on the hoisting machine 3.

As a further improvement of the present embodiment: sliding plate 401 is close to lifting machine one end swing joint has buffer board 4012, and be connected with torsional spring 4011 between buffer board 4012 and the sliding plate 401, when lifting machine 3 contacts the buffer board 4012 in the sliding plate 401 outside, torsional spring 4011 between buffer board 4012 and the sliding plate 401 will make buffer board 4012 kick-back, can turn into the rigid collision speed reduction of former sliding plate 401 into the elasticity buffering speed reduction, can avoid the sliding plate 401 fracture that rigid speed reduction produced and splash everywhere and cause secondary potential safety hazard.

The specific use mode and function of the embodiment are as follows:

in the invention, firstly, when a worker needs to descend the mine 1 to work, the elevator 3 is controlled to descend, if the elevator 3 descends unexpectedly to cause stall, the gear 201 enables the bevel gear I303 to rotate in an accelerating way through the linkage chain 2011, the bevel gear I303 drives the bevel gear II 304 to rotate, the bevel gear II 304 drives the hollow pipe 305 to rotate, the sliding rod 306 is driven to rotate simultaneously, the outer side of the sliding rod 306 is provided with the blades 3061 which are arranged in a streamline central symmetry way, when the sliding rod 306 rotates, the airflow is divided into an upper part and a lower part by the blades 3061, according to the Bernoulli principle, the static pressure of the place with large flow velocity is small, the static pressure of the place with small flow velocity is large, the upward pressure difference is generated on the upper surface and the lower surface of the blades 3061, the sliding rod 306 can be driven to extend when the blades 3061 rotate, the falling speed of the elevator can influence the rotating speed of the blades 3061, and further influence the extending length of the sliding rod 306, meanwhile, when the sliding rod 306 extends out to enable the second chuck 307 to contact the outer side of the first chuck 203 to fix the two chucks, then the fixture block at the outer side of the second chuck 307 contacts the clamping groove at the outer side of the first chuck 203 to fix the two chucks and drive the rotating rod 202 to rotate, the steel wire rope 204 at the outer side of the rotating rod 202 is wound at the outer side of the rotating rod 202, and the steel wire rope 204 pulls the movable rod 2041 at the other end to enable the movable rod 2041 to rotate at the outer side of the rotating shaft 2042, at this time, the movable rod 2041 overturns to push the brake pad 205 to contact the surface of the guide rail 101, so that the brake pad 205 can rub on the surface of the guide rail 101 to decelerate the elevator 3, and finally, the brake pad 205 rubs on the surface of the guide rail 101 to generate a large amount of heat, and at this time, the thermoelectric pad at the inner side of the brake pad 205 can convert the heat into current for activating the signal transmitter and sending out a signal to be received by the signal receiver at the outer side of the electromagnet 5, can make signal receiver give-out order, close electro-magnet 5 through electro-magnet control terminal, at this moment spring 402 resets and will release spout 4 backs with four sliding plates 401 through elasticity, when lifting machine 3 contacts the buffer board 4012 in the sliding plate 401 outside, torsional spring 4011 between buffer board 4012 and the sliding plate 401 will make buffer board 4012 kick-back, can carry out slow-speed processing to lifting machine 3 to prevent that lifting machine 3 from continuing to fall downwards.

In summary, although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the technical solutions described in the foregoing embodiments or equivalent substitutions for some technical features, and any modifications, equivalents, improvements, etc. made within the spirit and principle of the present invention should be included in the scope of the present invention.

Claims

1. The utility model provides a mine is unexpected speed reduction structure that falls for hoist, this mine is unexpected speed reduction structure that falls for hoist include mine (1), lifting machine (3), its characterized in that: mine (1) inside is equipped with detection mechanism, the braking mechanism that falls, the equal vertical fixed mounting in mine (1) inner wall both sides has guide rail (101), lifting machine (3) set up in two sets of between guide rail (101), the equal fixed mounting in lifting machine (3) both sides has support frame (301), the equal fixed mounting in support frame (301) top has shell (2), and slides between shell (2) and guide rail (101) and cup joint, two shell (2) top all is connected with gear (201) through the leg joint, and is provided with the tooth's socket on guide rail (101), gear (201) and tooth's socket meshing.

2. The mine hoist of claim 1 is with unexpected speed reduction structure that falls, characterized in that: the fall detection mechanism comprises a bevel gear I (303), a bevel gear II (304), a hollow pipe (305), a sliding rod (306) and an extension mechanism, supporting rods (302) are fixedly arranged on both sides of the top of the hoister (3), the hoister (3) is rotatably connected with a first bevel gear (303) through the supporting rods (302), hollow pipes (305) are rotatably connected at the positions of the two sides of the top of the elevator (3) close to the support rods (302), and one end of the hollow pipe (305) far away from the bevel gear I (303) is open, the other end is sealed and is fixedly connected with a bevel gear II (304), and the bevel gear II (304) is meshed with the bevel gear I (303), the inner side of the hollow pipe (305) is provided with a sliding rod (306) in a sliding way through a sliding groove, the sliding rod (306) is connected with the hollow tube (305) through a spring, and a buckling structure is arranged on one side, away from the hollow tube (305), of the sliding rod (306).

3. The mine hoist of claim 1 is with unexpected speed reduction structure that falls, characterized in that: the supporting frame (301), the supporting rod (302) and the hollow pipe (305) are symmetrically arranged on the central axis of the hoister (3), the rear sides of the bevel gears I (303) and the gear (201) are coaxially connected with chain wheels, and the chain wheels of the bevel gears I (303) and the gear (201) are synchronously connected through a linkage part.

4. The accidental fall deceleration structure for a mine hoist according to claim 2, characterized in that: the extending mechanism comprises a plurality of groups of blades (3061) which are fixedly arranged on the periphery of the sliding rod (306), and the blades (3061) are symmetrically arranged on the periphery of the sliding rod (306).

5. The accidental fall deceleration structure for a mine hoist according to claim 2, characterized in that: the fastening structure comprises a second chuck (307), a rotating rod (202) and a first chuck (203), the other end of the sliding rod (306) is fixedly provided with the second chuck (307), one end of the outer side of the shell (2) is close to the second chuck (307) and is rotatably provided with the rotating rod (202), the outer side of the rotating rod (202) is fixedly provided with the first chuck (203), and the second chuck (307) and the first chuck (203) are arranged in a matched mode through a clamping groove and a clamping block.

6. The mine hoist of claim 1 is with unexpected speed reduction structure that falls, characterized in that: stop mechanism of stopping to brake includes movable rod (2041), brake block (205), wire rope (204) and pivot (2042), pivot (2042) rotate to set up inside shell (2), and outside fixed mounting has movable rod (2041), the equal fixed mounting in movable rod (2041) one end top has the speed reduction part, be connected with wire rope (204) between movable rod (2041) the other end and dwang (202).