CN118458541A - Speed limiting protection device for mine hoist - Google Patents

Abstract

The invention relates to the field of speed limiting protection of mine hoists, in particular to a speed limiting protection device of a mine hoist. The invention provides a mine hoist speed limiting protection device which can limit the moving speed of a hoisting container on a guide rail when an electric control system fails and ensure the safety of personnel and equipment in the hoisting container. The speed limiting protector for mine hoist includes one connecting frame, one fixing seat, etc. and the connecting frame has two fixing seats connected to the left and right sides. According to the invention, when the connecting frame is overspeed, the sliding part is enabled to slide outwards through centrifugal force, the sliding part rotates along with the turntable after sliding outwards, the first rotating part is driven to rotate when the sliding part rotates, the clamping teeth are extruded when the first rotating part rotates, the elastic piece deforms, so that the rotating speed of the first rotating part is slowed down, the speed of the connecting frame is further slowed down, and the effects of limiting the moving speed of the lifting container on the guide rail when the electric control system fails and guaranteeing the safety of personnel and equipment in the lifting container are achieved.

Description

Speed limiting protection device for mine hoist

Technical Field

The invention relates to the field of speed limiting protection of mine hoists, in particular to a speed limiting protection device of a mine hoist.

Background

The coal resource reserves in China are rich, and the coal resource is an important substance for human development and progress. In recent years, the government and related departments in China are very important to the coal mining work, personal injury caused by coal mine safety accidents is greatly reduced, but serious coal mine safety accidents still occur due to factors such as environmental differences, improper operation of workers, improper management and the like. It is found that lifting transportation accidents after gas, water damage and roof accidents is a currently larger coal mine safety accident.

The hoister is used for hoisting coal and gangue in a mine. Lifting personnel and equipment, transporting materials, and the like. The system is transportation equipment for communicating the ground of the mine with underground, and is one of important equipment of the mine. The braking and safety protection device of the mine hoist is an important component of a hoisting system, and directly affects the normal work and safe operation of the hoist.

However, the existing mine hoist speed limiting protection device generally measures the rotating speed through speed measuring components such as a speed measuring generator and the like, then carries out speed limiting protection on the hoist, realizes safe operation through an electric control system, possibly fails, cannot guarantee to stop accident occurrence, and when the electric control system fails, a lifting container rapidly drops along a guide rail in a mine, and personnel injury and equipment damage in the container can be caused.

Therefore, a mine hoist speed limiting protection device capable of limiting the moving speed of the lifting container on the guide rail and guaranteeing the safety of personnel and equipment in the lifting container when an electric control system fails is developed.

Disclosure of Invention

In order to overcome the defect that when an electric control system fails, a lifting container falls down rapidly along a guide rail in a mine, so that personnel in the container are injured and equipment is damaged.

The utility model provides a mine winder speed limit protection device, including link, fixing base, first pivot, first runner and speed limit protection mechanism, two fixing bases around two portions upside all are connected with of link, and equal rotation type is connected with first pivot between two adjacent fixing bases, all is connected with first runner in the first pivot, is equipped with the speed limit protection mechanism that can carry out the speed limit to first runner between link and the first pivot.

Further, speed limit protection machanism is including the carousel, the slider, first spring, first connecting seat, first rotating member, the second connecting seat, the elastic sheet, the screens tooth, the leading truck, slide limiter and second spring, two portions all are connected with the carousel around the first pivot, all the slidingtype on the carousel is connected with a plurality of sliders, be connected with first spring between the carousel that the slider all is connected with the connection, both sides all are connected with two first connecting seats around the link, first connecting seat upper portion all rotate and are connected with first rotating member, first pivot all passes adjacent first rotating member, first rotating member all is located adjacent carousel outside, both sides all are connected with two front and back second connecting seats about the connecting frame, all be connected with a plurality of elastic sheets on the elastic sheet, all be connected with the screens tooth on the first rotating member and adjacent screens tooth meshing, all be connected with the first spring between the slider all with the carousel, first rotating member all the slider is connected with two first rotating members around, make the first rotating member rotate the first rotating member when the first rotating member is slowed down with the second rotating member, make the first rotating member rotate the first rotating member, and the first rotating member is rotated to the second rotating member is rotated, and the first rotating member is rotated, the first rotating member is rotated and the first rotating member is rotated, and the speed of rotation is slowed down, and the first rotating member is rotated and the second rotating member is rotated, and is rotated, the speed is rotated.

Further, the wire winding mechanism comprises a supporting seat, a second rotating shaft, a connecting cylinder and a spiral spring, wherein the upper side of the middle part of the connecting frame is connected with the left supporting seat and the right supporting seat, the second rotating shaft is rotatably connected between the supporting seats, the middle part of the second rotating shaft is connected with the connecting cylinder, the spiral spring is connected between the supporting seats and the second rotating shaft, when the connecting frame moves downwards, the second rotating shaft is pulled to rotate through a steel wire rope to drive the connecting cylinder to rotate, the spiral spring deforms, and when the connecting frame decelerates, the spiral spring is restored to drive the second rotating shaft and the connecting cylinder to rotate and reset, and the steel wire rope is wound.

Further, the device comprises a reset unlocking mechanism, wherein the reset unlocking mechanism comprises a guide seat, a sliding plate, a connecting rod, a second rotating piece and a pushing piece, the upper sides of the front part and the rear part of the connecting frame are respectively connected with the guide seat, the sliding plates are respectively connected to the guide seat in a sliding mode, the connecting rods are respectively connected to the left part and the right part of the connecting rods in a rotating mode, the second rotating piece is respectively connected with the adjacent sliding limiting piece, the pushing piece is connected to the middle part of the connecting cylinder, the sliding plates are respectively matched with the pushing piece in an extrusion mode, the protrusions on the pushing piece are extruded to push the sliding plates to open outwards in a normal state, the connecting rods are led to open outwards, the second rotating piece drives the sliding limiting piece to move outwards, the sliding limiting piece is not blocked, the second spring is in a compressed state, when the connecting frame is decelerated to trigger the connecting cylinder to rotate, the pushing piece is driven to rotate, the protrusions on the pushing piece are separated from the sliding plate, and then the second spring is rebounded, the sliding limiting piece is enabled to move inwards, and the sliding limiting piece is prevented from being recovered.

Further, still including supplementary moving mechanism, supplementary moving mechanism is including the mounting bracket, the second runner, servo motor and drive assembly, the link upside is connected with the mounting bracket, two parts all rotate about the mounting bracket are connected with the second runner, two parts all are connected with servo motor about the mounting bracket, servo motor is located the second runner below, servo motor all is equipped with drive assembly between adjacent second runner, when the link card is on the guide rail, servo motor on the starting mounting bracket drives the second runner through drive assembly and rotates for the second runner removes on the guide rail, promotes the link and removes.

Further, the transmission assembly comprises a belt and a transmission wheel, the front sides of the second rotating wheels are respectively connected with the transmission wheel, the output shafts of the servo motors are respectively connected with the transmission wheels, and the belt is wound between two adjacent transmission wheels.

Further, the device comprises a buffer connection mechanism, wherein the buffer connection mechanism comprises a guide post, a connecting plate and a third spring, the left part and the right part of the connecting frame are connected with the front guide post and the rear guide post in a sliding mode, the connecting plate is connected between the lower sides of the guide posts, a plurality of third springs are connected between the connecting plate and the connecting frame, when the connecting frame is connected with a lifting container of a lifting machine, the lifting container is connected onto the lifting container through the connecting plate, after the connecting frame is decelerated, the guide posts move on a rubber pad, and the third springs rebound after being extruded and contracted.

Further, the connecting frame comprises a rubber pad, the left part and the right part of the connecting frame are respectively connected with a front rubber pad and a rear rubber pad, and the guide posts are respectively connected with the adjacent rubber pads in a sliding mode.

Further, the warning device comprises a warning mechanism, the warning mechanism comprises a loudspeaker and a velocimeter, the upper side of the middle part of the connecting frame is connected with a front loudspeaker and a rear loudspeaker, the lower part of the supporting seat is connected with the velocimeter, the velocimeter is connected with the loudspeaker through a wire, and when the velocimeter monitors overspeed of the connecting frame, the loudspeaker gives out an alarm prompt.

Further, a dust screen is provided on the upper side of the speaker.

The beneficial effects of the invention are as follows: 1. according to the invention, when the connecting frame is overspeed, the sliding part is enabled to slide outwards through centrifugal force, the sliding part rotates along with the turntable after sliding outwards, the first rotating part is driven to rotate when the sliding part rotates, the clamping teeth are extruded when the first rotating part rotates, the elastic piece deforms, so that the rotating speed of the first rotating part is slowed down, the speed of the connecting frame is further slowed down, and the effects of limiting the moving speed of the lifting container on the guide rail when the electric control system fails and guaranteeing the safety of personnel and equipment in the lifting container are achieved.

2. When the connecting frame moves downwards, the second rotating shaft is pulled to rotate through the steel wire rope, the connecting cylinder is driven to rotate, the spiral spring deforms, the spiral spring recovers when the connecting frame decelerates, the second rotating shaft and the connecting cylinder are driven to rotate and reset, the steel wire rope is wound, and the effect that the steel wire rope is wound to influence subsequent lifting due to continuous descending and accumulation is achieved.

3. According to the invention, after the steel wire rope stops descending, the connecting frame continues to descend to a designated position under the action of gravity, the connecting cylinder is pulled to rotate, so that the steel wire rope extends, the pushing piece is driven to rotate and reset, the spiral spring deforms, the protrusion on the pushing piece extrudes the sliding plate to move outwards again, the sliding limiting piece is enabled not to limit the sliding piece any more, the first spring rebounds, the sliding piece is driven to reset, and the effect that the sliding limiting piece can be unlocked, and the subsequent movement of the connecting frame is prevented from being influenced is achieved.

4. According to the invention, the servo motor on the mounting frame is started, and the second rotating wheel is driven to rotate through the transmission assembly, so that the second rotating wheel moves on the guide rail to push the connecting frame to move, and the effect of assisting the connecting frame in moving and avoiding the connecting frame from being clamped is achieved.

5. According to the invention, the lifting container is connected to the lifting container through the connecting plate, the guide post moves on the rubber pad after the connecting frame is decelerated, and the third spring is extruded and contracted and then rebounds, so that the effects of buffering the lifting container and reducing impact on equipment or personnel in the lifting container are achieved.

6. According to the invention, when the speedometer monitors overspeed of the connecting frame, the loudspeaker gives out an alarm prompt, so that the effect of helping personnel to detect abnormal conditions in the shortest time, avoiding accidents or reducing the consequences of the accidents is achieved.

Drawings

Fig. 1 is a schematic perspective view of the present invention.

Fig. 2 is a schematic view of a partial perspective structure of the present invention.

Fig. 3 is a schematic perspective view of the speed limiting protection mechanism of the present invention.

Fig. 4 is a schematic perspective view of a first part of the speed limit protection mechanism of the present invention.

Fig. 5 is a schematic view of a second partial perspective view of the speed limit protection mechanism of the present invention.

Fig. 6 is an exploded view of a part of the three-dimensional structure of the speed limit protection mechanism of the present invention.

Fig. 7 is a partial perspective sectional view of the speed limit protection mechanism of the present invention.

Fig. 8 is a schematic perspective view of a third portion of the speed limit protection mechanism of the present invention.

Fig. 9 is a schematic perspective view of a wire winding mechanism according to the present invention.

Fig. 10 is a schematic perspective view of a reset unlocking mechanism according to the present invention.

Fig. 11 is a schematic partial view of a three-dimensional structure of the reset unlocking mechanism of the present invention.

Fig. 12 is a schematic view of a partial perspective structure of the reset unlocking mechanism of the present invention.

Fig. 13 is a schematic perspective view of an auxiliary moving mechanism according to the present invention.

Fig. 14 is a schematic perspective view of a buffer connection mechanism and a warning mechanism according to the present invention.

The reference symbols in the drawings: 1: connecting frame, 2: fixing base, 3: first pivot, 4: first runner, 5: speed limit protection mechanism, 50: carousel, 51: slide, 52: first spring, 53: first connection seat, 54: first rotation piece, 55: second connection base, 56: elastic sheet, 57: clamping teeth, 58: guide frame, 59: sliding limiter, 510: second spring, 6: wire winding mechanism, 60: support base, 61: second spindle, 62: connecting cylinder, 63: spiral spring, 7: resetting the unlocking mechanism, 70: guide holder, 71: slide plate, 72: connecting rod, 73: second rotating member, 74: pushing piece, 8: auxiliary moving mechanism, 80: mounting bracket, 81: second wheel, 82: servo motor, 83: transmission assembly, 9: buffer connection mechanism, 90: guide post, 91: connection plate, 92: rubber pad, 93: third spring, 10: warning mechanism, 101: speaker, 102: a velocimeter.

Detailed Description

The invention will be further described with reference to specific examples, illustrative examples and illustrations of which are provided herein to illustrate the invention, but are not to be construed as limiting the invention.

The utility model provides a mine winder speed limit protection device, as shown in fig. 1 and 2, including link 1, fixing base 2, first pivot 3, first runner 4 and speed limit protection mechanism 5, two fixing bases 2 around the link 1 left and right sides both sides all are connected with, all rotate between two adjacent fixing bases 2 and be connected with first pivot 3, all be connected with first runner 4 on the first pivot 3, be equipped with speed limit protection mechanism 5 between link 1 and the first pivot 3.

As shown in fig. 1, fig. 3, fig. 4, fig. 5, fig. 6, fig. 7 and fig. 8, the speed limiting protection mechanism 5 comprises a rotary table 50, sliding parts 51, first springs 52, first connecting seats 53, first rotating parts 54, second connecting seats 55, elastic pieces 56, clamping teeth 57, a guide frame 58, sliding limiting parts 59 and second springs 510, the rotary table 50 is connected to the front and rear parts of the first rotating shaft 3, six sliding parts 51 are connected to the rotary table 50 in a sliding mode, a first spring 52 is connected between the sliding parts 51 and the connected rotary table 50, the left and right parts of the connecting frame 1 are connected with the front and rear first connecting seats 53, the first rotating shafts 3 penetrate through adjacent first rotating parts 54, the upper parts of the first connecting seats 53 are connected with the first rotating parts 54 in a rotating mode, the first rotating parts 54 are located outside the adjacent rotary table 50, the left and right parts of the connecting frame 1 are connected with the front and rear second connecting seats 55, the second connecting seats 55 are connected with the two elastic pieces 56, the elastic pieces 56 are connected with the clamping teeth 57, the clamping teeth 57 are connected to the guide frames 58 are connected to the two sliding parts 58 in a sliding mode, the sliding parts are connected to the two limiting parts 58 are connected to the two sides of the adjacent rotating frames, and the sliding frames 58 are connected to the two limiting parts are connected to the front and the guide frames 58 in a sliding mode, and the sliding parts are connected to the six sliding parts and the limiting parts and the sliding parts and the two limiting parts are connected to the adjacent to the two sliding parts 59.

When the invention is used, the connecting frame 1 is firstly connected with the lifting container of the lifting machine, then the steel wire rope of the lifting machine is connected to the connecting frame 1, then the connecting frame 1 is lowered into the mine through the steel wire rope, the first rotating wheel 4 is contacted with the guide rail in the mine, the rotating speed of the first rotating wheel 54 is slowed down while the connecting frame 1 moves downwards along the guide rail, the first rotating shaft 3 is driven to rotate, the rotating speed of the first rotating shaft 3 is further driven to rotate, when the speed of the connecting frame 1 exceeds 12 meters per second, the sliding piece 51 is driven to slide outwards through centrifugal force, the first spring 52 stretches, the sliding piece 51 rotates along with the rotating disc 50 after sliding outwards, the sliding piece 51 drives the first rotating piece 54 to rotate on the first connecting seat 53, the clamping tooth 57 is extruded when the first rotating piece 54 rotates, the elastic piece 56 deforms, the rotating speed of the first rotating piece 54 is slowed down, the rotating speed of the sliding piece 51 is slowed down, the first rotating wheel 4 is further slowed down, the rotating speed of the connecting frame 1 is further slowed down, the speed of the sliding piece 1 is enabled, when an electric control system is in failure occurs, the lifting container can be limited, the moving speed of the guide rail on the lifting container and the safety container can be guaranteed, and the safety of personnel can be guaranteed. The sliding piece 51 slides outwards and simultaneously presses the sliding limiting piece 59 to move outwards, the second spring 510 is pressed and contracted, and when the sliding piece 51 slides outwards, the second spring 510 rebounds, so that the sliding limiting piece 59 is reset, and the sliding piece 51 is prevented from being recovered under the acting force of the first spring 52 due to the weakening of centrifugal force.

As shown in fig. 1 and 9, the wire winding mechanism 6 includes a supporting seat 60, a second rotating shaft 61, a connecting cylinder 62 and a spiral spring 63, the upper side of the middle part of the connecting frame 1 is connected with a left supporting seat and a right supporting seat 60, the second rotating shaft 61 is rotatably connected between the supporting seats 60, the connecting cylinder 62 is connected in the middle of the second rotating shaft 61, and the spiral spring 63 is connected between the supporting seats 60 and the second rotating shaft 61.

When the steel wire rope of the elevator is connected to the second rotating shaft 61, the second rotating shaft 61 is pulled to rotate through the steel wire rope when the connecting frame 1 moves downwards, the connecting cylinder 62 is driven to rotate, the spiral spring 63 deforms, the spiral spring 63 recovers when the connecting frame 1 decelerates, the second rotating shaft 61 and the connecting cylinder 62 are driven to rotate and reset, the steel wire rope is wound, and accordingly the effect that the subsequent lifting is affected due to winding caused by continuous downward stacking of the steel wire rope can be avoided.

As shown in fig. 1, 10, 11 and 12, the device further comprises a reset unlocking mechanism 7, the reset unlocking mechanism 7 comprises a guide seat 70, a sliding plate 71, a connecting rod 72, a second rotating member 73 and a pushing member 74, the upper sides of the front portion and the rear portion of the connecting frame 1 are respectively connected with the guide seat 70, the sliding plate 71 is respectively connected with the guide seat 70 in a sliding manner, the connecting rod 72 is respectively connected with the sliding plate 71, the left portion and the right portion of the connecting rod 72 are respectively connected with the second rotating member 73 in a rotating manner, the second rotating member 73 is respectively connected with the adjacent sliding limiting member 59, the middle portion of the connecting cylinder 62 is connected with the pushing member 74, and the sliding plate 71 is respectively in press fit with the pushing member 74.

The reset unlocking mechanism 7 of the device can unlock the sliding limiting piece 59, the bulge on the pushing piece 74 extrudes the sliding plate 71 to be outwards spread in a normal state, the connecting rod 72 is outwards spread, the second rotating piece 73 drives the sliding limiting piece 59 to move outwards, the sliding limiting piece 59 does not block the sliding piece 51, the second spring 510 is in a compressed state, when the connecting frame 1 is decelerated to trigger the connecting cylinder 62 to rotate, the pushing piece 74 is driven to rotate, the bulge on the pushing piece 74 is separated from the sliding plate 71, then the second spring 510 rebounds, the sliding limiting piece 59 moves inwards to limit the sliding piece 51, the sliding piece 51 is avoided to be recovered, after the steel wire rope is lowered to the length of a specified stop position of a lifting container, the connecting frame 1 is continuously lowered to the specified position through the action of gravity, the connecting frame 62 is pulled to rotate, the steel wire rope is extended, the pushing piece 74 is driven to rotate and reset, the volute spring 63 deforms, the bulge on the pushing piece 74 extrudes the sliding plate 71 outwards, the sliding limiting piece 59 is not to move outwards any more, the sliding limiting piece 59 can move to the sliding piece 51, the first spring 52 is driven to move normally, the sliding frame 1 can be prevented from moving normally, and the subsequent sliding frame 1 can be prevented from moving normally, and the sliding frame is prevented from moving normally.

As shown in fig. 1 and 13, the auxiliary moving mechanism 8 is further included, the auxiliary moving mechanism 8 includes a mounting frame 80, a second rotating wheel 81, a servo motor 82 and a transmission component 83, the mounting frame 80 is connected to the upper side of the connecting frame 1, the second rotating wheel 81 is connected to the left and right parts of the mounting frame 80 in a rotating manner, the servo motor 82 is located below the second rotating wheel 81, the transmission component 83 is arranged between the servo motor 82 and the adjacent second rotating wheel 81, the transmission component 83 includes a belt and a transmission wheel, the transmission wheel is connected to the front side of the second rotating wheel 81, the transmission wheel is also connected to the output shaft of the servo motor 82, and the belt is connected between the two adjacent transmission wheels in a winding manner.

The auxiliary moving mechanism 8 of the device can assist the connecting frame 1 to move, when the connecting frame 1 is clamped on the guide rail, the servo motor 82 on the mounting frame 80 is started, the second rotating wheel 81 is driven to rotate through the belt and the driving wheel in the driving assembly 83, the second rotating wheel 81 moves on the guide rail, the connecting frame 1 is pushed to move, and therefore the connecting frame 1 can be assisted to move, and the clamping effect of the connecting frame 1 is avoided.

As shown in fig. 1 and 14, the buffer connection mechanism 9 is further included, the buffer connection mechanism 9 includes a guide post 90, a connection plate 91, rubber pads 92 and third springs 93, the left and right parts of the connection frame 1 are all connected with the front and rear two guide posts 90 in a sliding manner, the connection plate 91 is connected between the lower sides of the guide posts 90, the left and right parts of the connection frame 1 are all connected with the front and rear two rubber pads 92, the guide posts 90 are all connected with the adjacent rubber pads 92 in a sliding manner, and four third springs 93 are connected between the connection plate 91 and the connection frame 1.

The buffer connection mechanism 9 of the device can buffer a lifting container, when the connecting frame 1 is connected with the lifting container of a lifter, the lifting container is connected to the lifting container through the connecting plate 91, after the connecting frame 1 is decelerated, the guide post 90 moves on the rubber pad 92, and the third spring 93 rebounds after being extruded and contracted, so that the buffer connection mechanism can buffer the lifting container, and the impact on internal equipment or personnel of the lifting container is reduced.

As shown in fig. 1 and 14, the alarm device further comprises an alarm mechanism 10, the alarm mechanism 10 comprises a speaker 101 and a velocimeter 102, the upper side of the middle part of the connecting frame 1 is connected with a front speaker 101 and a rear speaker 101, a dustproof net is arranged on the upper side of the speaker 101 to prevent dust and sundries from entering, the velocimeter 102 is connected to the lower portion of the supporting seat 60, and the velocimeter 102 is connected with the speaker 101 through an electric wire.

By using the warning mechanism 10 of the device, the velocimeter 102 monitors the speed of the connecting frame 1, and when the velocimeter 102 monitors that the connecting frame 1 is overspeed, the loudspeaker 101 gives out an alarm prompt, so that the device plays a role in helping personnel to perceive abnormal conditions in the shortest time, avoiding accidents or reducing the consequences of the accidents.

While the disclosure has been described with respect to only a limited number of embodiments, those skilled in the art, having benefit of this disclosure, will appreciate that various other embodiments can be devised which do not depart from the scope of the invention as disclosed herein. Accordingly, the scope of the invention should be limited only by the attached claims.

Claims (9)

1. A mine winder speed limit protection device, characterized by: the speed limiting protection mechanism comprises a connecting frame (1), fixing seats (2), first rotating shafts (3), first rotating wheels (4) and a speed limiting protection mechanism (5), wherein front and rear fixing seats (2) are respectively connected to the upper sides of the left and right parts of the connecting frame (1), the first rotating shafts (3) are respectively and rotatably connected between the two adjacent fixing seats (2), the first rotating wheels (4) are respectively and rotatably connected to the first rotating shafts (3), and the speed limiting protection mechanism (5) capable of limiting the speed of the first rotating wheels (4) is arranged between the connecting frame (1) and the first rotating shafts (3); the speed limiting protection mechanism (5) comprises a rotary table (50), sliding parts (51), first springs (52), first connecting seats (53), first rotating parts (54), second connecting seats (55), elastic sheets (56), clamping teeth (57), guide frames (58), sliding limiting parts (59) and second springs (510), wherein the rotary table (50) is connected with the front and rear parts of the first rotating shaft (3), a plurality of sliding parts (51) are connected on the rotary table (50) in a sliding mode, first springs (52) are connected between the sliding parts (51) and the rotary table (50) which are connected, front and rear first connecting seats (53) are connected with the left and right parts of the connecting frame (1), first rotating parts (54) are connected with the upper parts of the first connecting seats (53) in a rotating mode, the first rotating shafts (3) penetrate through the adjacent first rotating parts (54), the first rotating parts (54) are located outside the adjacent rotary table (50), the front and rear second connecting seats (55) are connected with the left and right parts of the connecting frame (1), the second connecting seats (55) are connected with the elastic sheets (56) in a meshed mode, the first rotating parts (55) are connected with the elastic sheets (56) in a rotating mode, both sides all are connected with leading truck (58) around first pivot (3), all be connected with slip limiter (59) on leading truck (58), be connected with a plurality of second springs (510) between slip limiter (59) all and leading truck (58) that are connected, slip limiter (59) and slider (51) extrusion fit, when the speed of link (1) exceeds 12 meters per second, first pivot (3) rotational speed increases, make slider (51) outwards slide through centrifugal force, first spring (52) tensile, slider (51) outwards slide the back along with carousel (50) rotation, drive first slider (54) rotatory on first connecting seat (53) when slider (51) are rotatory, extrusion screens tooth (57) when first slider (54) are rotatory, elastic piece (56) take place the deformation, make the rotational speed of first slider (54) slow down, and then make first rotating wheel (4) rotational speed slow down, make link (1) speed slow down.

2. The mine hoist speed limit protection device of claim 1, characterized in that: wire rod rolling mechanism (6) are including supporting seat (60), second pivot (61), connecting cylinder (62) and scroll spring (63), two supporting seats (60) are controlled in the link (1) middle part upside connection, rotationally be connected with second pivot (61) between supporting seat (60), second pivot (61) middle part is connected with connecting cylinder (62), be connected with scroll spring (63) between supporting seat (60) and second pivot (61), when link (1) moves down, through wire rope pulling second pivot (61) rotation, drive connecting cylinder (62) rotation, scroll spring (63) take place deformation, when link (1) speed reduction, scroll spring (63) resume, drive second pivot (61) and connecting cylinder (62) rotatory reset, coil wire rope.

3. The mine hoist speed limit protection device of claim 2, characterized in that: the device comprises a connecting frame (1), a guide seat (70), a sliding plate (71), a connecting rod (72), a second rotating member (73) and a pushing member (74), wherein the upper sides of the front part and the rear part of the connecting frame (1) are respectively connected with the guide seat (70), the sliding plate (71) is respectively connected to the guide seat (70), the connecting rod (72) is respectively connected to the sliding plate (71), the left part and the right part of the connecting rod (72) are respectively connected with the second rotating member (73), the second rotating member (73) is respectively connected with an adjacent sliding limiting member (59), the middle part of the connecting cylinder (62) is connected with the pushing member (74), the sliding plate (71) is respectively in extrusion fit with the pushing member (74), the protrusions on the pushing member (74) are extruded to be outwards spread in a normal state, the connecting rod (72) is outwards spread, the sliding limiting members (59) are respectively driven to outwards move by the second rotating members (73), the sliding limiting members (59) are not blocked by the sliding members (51), the second spring (510) is respectively connected to the sliding members (51), and then the second spring (62) is driven by the spring (74) to be in a state of being triggered to rotate, and the second spring (74) is compressed by the rotating members, the sliding limiting piece (59) moves inwards to limit the sliding piece (51), so that the sliding piece (51) is prevented from being recovered.

4. A mine hoist speed limit protector as claimed in claim 3, wherein: still including supplementary moving mechanism (8), supplementary moving mechanism (8) are including mounting bracket (80), second runner (81), servo motor (82) and drive assembly (83), link (1) upside is connected with mounting bracket (80), two parts are all rotated about mounting bracket (80) are connected with second runner (81), two parts are all connected with servo motor (82) about mounting bracket (80), servo motor (82) are located second runner (81) below, be equipped with drive assembly (83) between servo motor (82) all and adjacent second runner (81), when link (1) card is on the guide rail, servo motor (82) on start-up mounting bracket (80) drive second runner (81) rotatory through drive assembly (83), make second runner (81) remove on the guide rail, promote link (1) removal.

5. The mine hoist speed limit protection device of claim 4, characterized in that: the transmission assembly (83) comprises a belt and a transmission wheel, the transmission wheels are connected to the front side of the second rotating wheel (81), the transmission wheels are also connected to the output shaft of the servo motor (82), and the belt is wound between two adjacent transmission wheels.

6. The mine hoist speed limit protection device of claim 5, characterized in that: the novel lifting device is characterized by further comprising a buffer connection mechanism (9), wherein the buffer connection mechanism (9) comprises a guide post (90), a connecting plate (91) and a third spring (93), the left side and the right side of the connecting frame (1) are both connected with the front guide post and the rear guide post (90) in a sliding mode, the connecting plate (91) is connected between the lower sides of the guide posts (90), a plurality of third springs (93) are connected between the connecting plate (91) and the connecting frame (1), when the connecting frame (1) is connected with a lifting container of a lifting machine, the lifting container is connected onto the lifting container through the connecting plate (91), after the connecting frame (1) is decelerated, the guide posts (90) move on the rubber pads (92), and the third springs (93) rebound after being extruded and contracted.

7. The mine hoist speed limit protection device of claim 6, characterized in that: the guide column is characterized by further comprising rubber pads (92), wherein the left part and the right part of the connecting frame (1) are respectively connected with the front rubber pad and the rear rubber pad (92), and the guide column (90) is respectively connected with the adjacent rubber pads (92) in a sliding mode.

8. The mine hoist speed limit protection device of claim 7, characterized in that: the warning device is characterized by further comprising a warning mechanism (10), wherein the warning mechanism (10) comprises a loudspeaker (101) and a velocimeter (102), the upper side of the middle of the connecting frame (1) is connected with the front loudspeaker (101) and the rear loudspeaker (101), the velocimeter (102) is connected with the lower portion of the supporting seat (60) through wires, and the velocimeter (102) is connected with the loudspeaker (101) when the velocimeter (102) monitors overspeed of the connecting frame (1), the loudspeaker (101) gives out an alarm prompt.

9. The mine hoist speed limit protection device of claim 8, characterized in that: a dust screen is arranged on the upper side of the loudspeaker (101).