Collision protection auxiliary braking device for coal mine monorail hoist

Abstract

The invention relates to the technical field of coal mine monorail hoists, in particular to a collision protection auxiliary braking device for a coal mine monorail hoist. The collision protection auxiliary braking device for the coal mine monorail hoist can automatically push obstacles aside, saves manpower and meanwhile reduces the braking frequency of the monorail hoist. A collision protection auxiliary braking device for a coal mine monorail hoist comprises a rail, supports, cranes and the like, the multiple supports are connected to the rail in a clamped mode, and the crane is connected between the two supports on the left portion. While the sliding frame moves, the rack is driven to move, so that the rack and the gear move in an engaged mode, the connecting shaft is driven to rotate through the acting force of the first torsional spring, the push plate rotates to push the obstacle away from the moving route, and the effects that the obstacle can be automatically pushed aside, manpower is saved, and meanwhile the braking frequency of the monorail hoist is reduced are achieved.

Description

Technical Field

[0001] The invention relates to the technical field of coal mine monorail cranes, in particular to a collision protection auxiliary braking device for coal mine monorail cranes. Background Art

[0002] In underground coal mine operations, monorail cranes are commonly used transportation equipment for transporting personnel, materials and equipment. However, due to the complex underground environment and limited vision, collision accidents are prone to occur, resulting in casualties and equipment damage. When encountering an obstacle, the existing coal mine monorail crane senses the obstacle through a sensor, and then controls the power system to brake, so that the coal mine monorail crane stops running. However, when the obstacle is light and easy to remove, the coal mine monorail crane still needs to be removed by the staff after it stops running, which consumes manpower, and too many braking times can easily affect the normal operation of the coal mine monorail crane.

[0003] Therefore, a collision protection auxiliary braking device for a coal mine monorail crane has been developed, which can automatically push away obstacles, save manpower, and reduce the number of braking times of the monorail crane. Summary of the invention

[0004] In order to overcome the shortcomings that when the obstacle is light and easy to remove, workers are still needed to remove the obstacle after the coal mine monorail crane stops running, which wastes manpower and too many braking times can easily affect the normal operation of the coal mine monorail crane, the present invention provides a coal mine monorail crane collision protection auxiliary braking device which can automatically push away the obstacle, save manpower and reduce the braking times of the monorail crane.

[0005] The technical implementation scheme of the present invention is: a collision protection auxiliary braking device for a coal mine monorail crane, including a track, a support, a crane, a sling, a connecting rod, a power system and a braking mechanism. A plurality of supports are clamped on the track, a crane is connected between two supports on the left, left and right slings are connected to the lower sides of the front and rear parts of the crane, a connecting rod is rotatably connected to the right side of the crane, a power system is connected between two supports on the right, the power system is rotatably connected to the connecting rod, the power system is in contact with the track, and a braking mechanism that can stop the power system from moving is provided on the connecting rod.

[0006] Furthermore, hooks are arranged on the lower sides of the slings.

[0007] Furthermore, the braking mechanism includes a first support frame, a rotating frame, a sliding frame, a guide sleeve, a first spring, a second support frame, a crankshaft, an eccentric wheel, a rack, a connecting shaft, a gear, a push plate and a first torsion spring. The right part of the connecting rod is connected to the first support frame, the lower part of the first support frame is rotatably connected to the rotating frame, the upper part of the rotating frame is movably connected to the sliding frame, the lower side of the right part of the connecting rod is connected to the guide sleeve, the guide sleeve is slidably connected to the sliding frame, the first spring is connected between the sliding frame and the guide sleeve, the upper side of the right part of the connecting rod is connected to the second support frame, the front and rear parts of the second support frame are both rotatably connected to the crankshaft, the crankshaft is movably connected to the sliding frame, the upper side of the crankshaft is connected to the eccentric wheel, the lower side of the left part of the sliding frame is connected to the rack, and the lower front side of the first support frame A connecting shaft is rotatably connected, and a gear is rotatably connected to the upper part of the connecting shaft. A first torsion spring is connected between the gear and the connecting shaft, and the gear is meshed with the rack. A push plate is connected to the right side of the lower part of the connecting shaft. When an obstacle is encountered on the track route, the rotating frame contacts the obstacle, causing the rotating frame to rotate left on the first supporting frame, pulling the sliding frame to move right on the guide sleeve, and the first spring is squeezed and contracted. At this time, the crankshaft rotates on the second supporting frame, causing the eccentric wheel to rotate and contact the track, and the friction force causes the device to slowly stop moving. While the sliding frame moves, it drives the rack to move, causing the rack to mesh with the gear, and the connecting shaft is driven to rotate by the action of the first torsion spring, so that the push plate rotates to push the obstacle away from the moving route.

[0008] Furthermore, it also includes an anti-sway mechanism, which includes a sliding rod, a contact plate and a second spring. The front and rear parts of the crane are slidably connected with the sliding rod, the lower side of the sliding rod is connected with a contact plate, and the contact plate and the crane are connected with a second spring. When the material is hung on the sling, the contact plate is squeezed to move upward, the sliding rod moves upward, and the second spring is squeezed and contracted.

[0009] Furthermore, it also includes a stopping mechanism, which includes a connecting frame, a push switch and a connecting line. The connecting frame is connected to the upper right side of the sliding frame, and the push switch is connected to the lower left side of the power system. The push switch and the connecting frame are squeezed together, and a connecting line is connected between the push switch and the power system. After the sliding frame moves to the right, it drives the connecting frame to move to the right, so that the connecting frame squeezes the push switch, and transmits a signal through the connecting line, so that the power system stops running.

[0010] Furthermore, it also includes an anti-collision mechanism, which includes a third support frame, a lifting frame, a baffle, a third spring, a support wheel and a pull rope. The upper sides of the front and rear parts of the crane are connected to the third support frame, the upper part of the third support frame is slidably connected to the lifting frame, the lifting frame is slidably connected to the baffle, the baffle is connected to the connected lifting frame with two left and right third springs, the upper side of the third support frame is rotatably connected to the support wheel, the sliding rod is connected to the adjacent lifting frame with a pull rope, the pull rope is in contact with the adjacent support wheel, when the sliding rod moves upward, the pull rope relaxes, so that the lifting frame moves downward along the third support frame, the support wheel supports the pull rope, so that the baffle moves downward to both sides of the material, and when the baffle is hit, the baffle is buffered by the action force of the third spring.

[0011] Furthermore, the baffles are all folded.

[0012] Furthermore, it also includes a spacing mechanism, which includes a first support block, a second support block, an adjusting screw, a guide rod and a limit block. The first support block is connected to the upper side of the lifting frame, and the second support block is connected to the upper side of the lifting frame. The second support block is located outside the first support block. The adjacent first support blocks and the second support blocks are rotatably connected with adjusting screws, the middle part of the lifting frame is connected with a guide rod, the guide rod passes through the adjacent baffles, and the guide rods are slidably connected with limit blocks. The limit blocks are in contact with the adjacent baffles, and the limit blocks are threadedly connected to the adjacent adjusting screws. According to the size of the moving space, the adjusting screw is rotated to move the limit block on the guide rod to push the baffle to move and adjust the spacing between the baffles.

[0013] Furthermore, each adjusting screw is provided with a knob.

[0014] Furthermore, it also includes a protective mechanism, which includes a support arm, a protective plate and a second torsion spring. The upper sides of the front and rear parts of the crane are connected to the support arms, and the support arms are rotatably connected to the protective plates. Two left and right second torsion springs are connected between the protective plates and the connected support arms. The protective plates are tilted above the crane through the action of the second torsion springs. When stones fall from above, the protective plates intercept the stones.

[0015] The present invention has the following advantages: 1. The present invention drives the rack to move while the sliding frame moves, so that the rack and the gear mesh and move, and the connecting shaft is driven to rotate by the action force of the first torsion spring, so that the push plate rotates to push the obstacle away from the moving route, thereby achieving the effect of automatically pushing away the obstacle, saving manpower, and reducing the number of braking times of the monorail crane.

[0016] 2. When the material is hung on the sling, the contact plate is squeezed to move upward, the slide bar moves upward, and the second spring is squeezed and contracted, thereby achieving the effect of improving the stability of the transported material and avoiding the shaking of the material.

[0017] 3. In the present invention, after the sliding frame moves to the right, it drives the connecting frame to move to the right, so that the connecting frame squeezes the pressing switch and transmits the signal through the connecting line to stop the power system, thereby achieving the effect of stopping the power system while braking and avoiding damage to the power system.

[0018] 4. In the present invention, when the slide rod moves upward, the pull rope relaxes, so that the lifting frame moves downward along the third support frame, and the support wheel supports the pull rope, so that the baffle moves downward to both sides of the material. When the baffle is hit, the baffle is buffered by the force of the third spring, thereby achieving the effect of protecting the material and preventing the material from being damaged by impact.

[0019] 5. The present invention achieves the effect of being able to adapt to mine spaces of different sizes by rotating the adjusting screw according to the size of the moving space, so that the limit block moves on the guide rod, pushes the baffle to move, and adjusts the distance between the baffles.

[0020] 6. The present invention uses the force of the second torsion spring to make the protective plate tilted above the crane. When stones fall from above, the protective plate intercepts the stones, thereby achieving the effect of protecting the upper part of the material and preventing the material from being damaged. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention.

[0022] Figure 2 It is a partial three-dimensional structural schematic diagram of the present invention.

[0023] Figure 3 It is a schematic diagram of the three-dimensional structure of the braking mechanism of the present invention.

[0024] Figure 4 It is a partial three-dimensional structural schematic diagram of the braking mechanism of the present invention.

[0025] Figure 5 It is a schematic diagram of the three-dimensional structure of the anti-sway mechanism of the present invention.

[0026] Figure 6 It is a schematic diagram of the three-dimensional structure of the stopping mechanism of the present invention.

[0027] Figure 7 It is a schematic diagram of the three-dimensional structure of the anti-collision mechanism of the present invention.

[0028] Figure 8 It is a schematic diagram of the three-dimensional structure of the spacing mechanism of the present invention.

[0029] Fig. 9 It is a schematic diagram of the three-dimensional structure of the protection mechanism of the present invention.

[0030] The meanings of the reference numerals in the figure are as follows: 1: track, 2: support, 3: crane, 4: sling, 5: connecting rod, 6: power system, 7: braking mechanism, 71: first supporting frame, 72: rotating frame, 73: sliding frame, 74: guide sleeve, 75: first spring, 76: second supporting frame, 77: crankshaft, 78: eccentric wheel, 79: rack, 710: connecting shaft, 711: gear, 712: push plate, 713: first torsion spring, 8: anti-sway mechanism, 81: slide rod, 82: contact plate, 83: second spring Spring, 9: stop mechanism, 91: connecting frame, 92: push switch, 93: connecting line, 10: anti-collision mechanism, 101: third support frame, 102: lifting frame, 103: baffle, 104: third spring, 105: support wheel, 106: pull rope, 11: spacing mechanism, 111: first support block, 112: second support block, 113: adjusting screw, 114: guide rod, 115: limit block, 12: protection mechanism, 121: support arm, 122: protection plate, 123: second torsion spring. DETAILED DESCRIPTION

[0031] Reference to an embodiment herein means that a particular feature, structure, or characteristic described in conjunction with the embodiment may be included in at least one embodiment of the present invention. The appearance of the phrase in various locations in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0032] A collision protection auxiliary braking device for a coal mine monorail crane, such as Figure 1 and Figure 2 As shown, it includes a track 1, a support 2, a crane 3, a sling 4, a connecting rod 5, a power system 6 and a braking mechanism 7. Four supports 2 are clamped on the track 1, and the crane 3 is connected between the two supports 2 on the left. The lower sides of the front and rear parts of the crane 3 are connected to the left and right slings 4. The lower sides of the slings 4 are provided with hooks for hanging materials. The right side of the crane 3 is rotatably connected to the connecting rod 5, and the power system 6 is connected between the two supports 2 on the right. The power system 6 is rotatably connected to the connecting rod 5, and the power system 6 is in contact with the track 1. The connecting rod 5 is provided with a braking mechanism 7.

[0033] like Figure 1 , Figure 3 and Figure 4As shown, the brake mechanism 7 includes a first support frame 71, a rotating frame 72, a sliding frame 73, a guide sleeve 74, a first spring 75, a second support frame 76, a crankshaft 77, an eccentric wheel 78, a rack 79, a connecting shaft 710, a gear 711, a push plate 712 and a first torsion spring 713. The right part of the connecting rod 5 is connected to the first support frame 71, the lower part of the first support frame 71 is rotatably connected to the rotating frame 72, the upper part of the rotating frame 72 is movably connected to the sliding frame 73, the lower side of the right part of the connecting rod 5 is connected to the guide sleeve 74, the guide sleeve 74 is slidably connected to the sliding frame 73, and the sliding frame 73 is connected to the guide sleeve 74. A spring 75, a second support frame 76 is connected to the upper right side of the connecting rod 5, the front and rear parts of the second support frame 76 are rotatably connected to the crankshaft 77, the crankshaft 77 is movably connected to the sliding frame 73, the upper side of the crankshaft 77 is connected to the eccentric wheel 78, the lower left side of the sliding frame 73 is connected to the rack 79, the lower front side of the first support frame 71 is rotatably connected to the connecting shaft 710, the upper part of the connecting shaft 710 is rotatably connected to the gear 711, the first torsion spring 713 is connected between the gear 711 and the connecting shaft 710, the gear 711 is meshed with the rack 79, and the lower right side of the connecting shaft 710 is connected to a push plate 712.

[0034] When using the present invention, firstly, the track 1 is laid and installed in the mine. When materials need to be transported, the materials are hung on the sling 4, and then the power system 6 is started, so that the power system 6 drives the support 2 to move on the track 1, and drives the crane 3 to move through the connecting rod 5, so that the crane 3 transports the materials to the designated position. When the track 1 encounters an obstacle on the route, the rotating frame 72 contacts the obstacle, so that the rotating frame 72 rotates to the left on the first supporting frame 71, and pulls the sliding frame 73 to move to the right on the guide sleeve 74, and the first spring 75 is squeezed and contracted. At this time, the crankshaft 77 rotates on the second supporting frame 76, so that the eccentric wheel 78 rotates and contacts the track 1, and the friction force causes the device to slowly stop moving, and the sliding frame 73 moves. When the obstacle is removed, the first spring 75 rebounds, causing the sliding frame 73 to reset, and the first torsion spring 713 recovers, causing the gear 711 to reset.

[0035] like Figure 1 and Figure 5As shown, it also includes an anti-sway mechanism 8, which includes a slide bar 81, a contact plate 82 and a second spring 83. The front and rear parts of the crane 3 are both slidably connected with the slide bar 81, the lower side of the slide bar 81 is connected to the contact plate 82, and the contact plate 82 is connected to the crane 3 with a second spring 83.

[0036] The anti-sway mechanism 8 of the device can improve the stability of the transported materials. When the materials are hung on the sling 4, the contact plate 82 is squeezed to move upward, the slide bar 81 moves upward, and the second spring 83 is squeezed and contracted, thereby improving the stability of the transported materials and preventing the materials from swaying. After the materials are removed from the sling 4, the second spring 83 rebounds, causing the slide bar 81 and the contact plate 82 to return to their original positions.

[0037] like Figure 1 and Figure 6 As shown, a stop mechanism 9 is also included, which includes a connecting frame 91, a push switch 92 and a connecting line 93. The connecting frame 91 is connected to the upper right side of the sliding frame 73, and the push switch 92 is connected to the lower left side of the power system 6. The push switch 92 is squeezed and matched with the connecting frame 91, and a connecting line 93 is connected between the push switch 92 and the power system 6.

[0038] By using the stopping mechanism 9 of the device, the power system 6 can be stopped. After the sliding frame 73 moves to the right, it drives the connecting frame 91 to move to the right, so that the connecting frame 91 squeezes the pressing switch 92 and transmits the signal through the connecting line 93 to stop the power system 6. This can stop the power system 6 while braking and avoid damage to the power system 6.

[0039] like Figure 1 and Figure 7 As shown, an anti-collision mechanism 10 is also included. The anti-collision mechanism 10 includes a third support frame 101, a lifting frame 102, a baffle 103, a third spring 104, a support wheel 105 and a pull rope 106. The third support frame 101 is connected to the upper sides of the front and rear parts of the crane 3. The upper part of the third support frame 101 is slidably connected to the lifting frame 102. The lifting frame 102 is slidably connected to the baffle 103. The baffle 103 is folded to facilitate protecting materials. The baffle 103 is connected to the connected lifting frame 102 with two left and right third springs 104. The upper side of the third support frame 101 is rotatably connected to the support wheel 105. The sliding rod 81 is connected to the adjacent lifting frame 102 with a pull rope 106, and the pull rope 106 is in contact with the adjacent support wheel 105.

[0040] The anti-collision mechanism 10 of the device can be used to prevent the material from being hit. When the slide bar 81 moves upward, the pull rope 106 relaxes, so that the lifting frame 102 moves downward along the third support frame 101, and the support wheel 105 supports the pull rope 106, so that the baffle 103 moves downward to both sides of the material. When the baffle 103 is hit, the baffle 103 is buffered by the force of the third spring 104, thereby protecting the material and preventing the material from being damaged by impact.

[0041] like Figure 1 and Figure 8 As shown, a spacing mechanism 11 is also included, and the spacing mechanism 11 includes a first support block 111, a second support block 112, an adjusting screw 113, a guide rod 114 and a limit block 115. The upper side of the lifting frame 102 is connected to the first support block 111, and the upper side of the lifting frame 102 is connected to the second support block 112, and the second support block 112 is located outside the first support block 111. The adjusting screws 113 are rotatably connected between the adjacent first support blocks 111 and the second support blocks 112, and the adjusting screws 113 are provided with knobs for easy rotation. The middle part of the lifting frame 102 is connected to the guide rod 114, and the guide rod 114 passes through the adjacent baffle 103. The guide rod 114 is slidably connected to the limit block 115, the limit block 115 is in contact with the adjacent baffle 103, and the limit block 115 is threadedly connected to the adjacent adjusting screw 113.

[0042] By using the spacing mechanism 11 of the device, the spacing between the baffles 103 can be adjusted. According to the size of the moving space, the adjusting screw 113 is rotated to move the limit block 115 on the guide rod 114, pushing the baffle 103 to move and adjusting the spacing between the baffles 103, thereby playing a role in adapting to different mine spaces.

[0043] like Figure 1 and Fig. 9 As shown, it also includes a protection mechanism 12, which includes a support arm 121, a protection plate 122 and a second torsion spring 123. The upper sides of the front and rear parts of the crane 3 are connected to the support arms 121, and the support arms 121 are rotatably connected to the protection plates 122. The protection plates 122 are connected to the support arms 121 with two left and right second torsion springs 123.

[0044] By using the protection mechanism 12 of the device, the upper part of the material can be protected. The force of the second torsion spring 123 makes the protection plate 122 tilted above the crane 3. When stones fall from above, the protection plate 122 intercepts the stones, thereby protecting the upper part of the material and preventing the material from being damaged.

[0045] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the present invention rather than to limit the scope of protection of the present invention. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solution of the present invention can be modified or replaced by equivalents without departing from the essence and scope of the technical solution of the present invention.

Claims

1. A collision protection auxiliary braking device for a coal mine monorail crane, characterized in that: The invention comprises a track (1), a support (2), a crane (3), a sling (4), a connecting rod (5), a power system (6) and a brake mechanism (7). A plurality of supports (2) are clamped on the track (1), a crane (3) is connected between two supports (2) on the left, two left and right slings (4) are connected to the lower sides of the front and rear parts of the crane (3), a connecting rod (5) is rotatably connected to the right side of the crane (3), a power system (6) is connected between the two supports (2) on the right side, the power system (6) is rotatably connected to the connecting rod (5), the power system (6) is in contact with the track (1), and a brake mechanism (7) is provided on the connecting rod (5) for stopping the power system (6) from moving.

2. A collision protection auxiliary brake device for a coal mine monorail crane according to claim 1, characterized in that: The lower side of the sling (4) is provided with a hook.

3. A collision protection auxiliary brake device for coal mine monorail crane according to claim 1, characterized in that: The brake mechanism (7) comprises a first support frame (71), a rotating frame (72), a sliding frame (73), a guide sleeve (74), a first spring (75), a second support frame (76), a crankshaft (77), an eccentric wheel (78), a rack (79), a connecting shaft (710), a gear (711), a push plate (712) and a first torsion spring (713). The right part of the connecting rod (5) is connected to the first support frame (71), the lower part of the first support frame (71) is rotatably connected to the rotating frame (72), and the upper part of the rotating frame (72) is movably connected to the sliding frame (713). The lower right side of the connecting rod (5) is connected with a guide sleeve (74), the guide sleeve (74) is slidably connected to the sliding frame (73), a first spring (75) is connected between the sliding frame (73) and the guide sleeve (74), the upper right side of the connecting rod (5) is connected with a second support frame (76), the front and rear parts of the second support frame (76) are both rotatably connected with a crankshaft (77), the crankshaft (77) is movably connected to the sliding frame (73), the upper side of the crankshaft (77) is connected with an eccentric wheel (78), the lower left side of the sliding frame (73) is connected with a rack (79), the first The front side of the lower part of the support frame (71) is rotatably connected to a connecting shaft (710), the upper part of the connecting shaft (710) is rotatably connected to a gear (711), a first torsion spring (713) is connected between the gear (711) and the connecting shaft (710), the gear (711) is meshed with the rack (79), and a push plate (712) is connected to the right side of the lower part of the connecting shaft (710). When the track (1) encounters an obstacle at the route, the rotating frame (72) contacts the obstacle, so that the rotating frame (72) rotates leftward on the first support frame (71), pulling the sliding frame (710) 3) Move rightward on the guide sleeve (74), the first spring (75) is squeezed and contracted, and the crankshaft (77) rotates on the second support frame (76), causing the eccentric wheel (78) to rotate and contact the track (1), and the device slowly stops moving through friction. While the sliding frame (73) moves, it drives the rack (79) to move, causing the rack (79) to mesh with the gear (711), and the connecting shaft (710) is driven to rotate through the action force of the first torsion spring (713), causing the push plate (712) to rotate and push the obstacle away from the moving route.

4. A collision protection auxiliary brake device for coal mine monorail crane according to claim 3, characterized in that: The invention also comprises an anti-sway mechanism (8), which comprises a slide bar (81), a contact plate (82) and a second spring (83). The front and rear parts of the crane (3) are both slidably connected with the slide bar (81), the lower side of the slide bar (81) is connected with the contact plate (82), and the second spring (83) is connected between the contact plate (82) and the crane (3). When the material is hung on the sling (4), the contact plate (82) is pressed to move upward, the slide bar (81) moves upward, and the second spring (83) is squeezed and contracted.

5. A collision protection auxiliary brake device for coal mine monorail crane according to claim 4, characterized in that: The invention also comprises a stop mechanism (9), which comprises a connecting frame (91), a push switch (92) and a connecting line (93). The connecting frame (91) is connected to the right side of the upper part of the sliding frame (73), and the push switch (92) is connected to the lower side of the left part of the power system (6). The push switch (92) and the connecting frame (91) are pressed together, and a connecting line (93) is connected between the push switch (92) and the power system (6). After the sliding frame (73) moves to the right, it drives the connecting frame (91) to move to the right, so that the connecting frame (91) presses the push switch (92), and transmits a signal through the connecting line (93), so that the power system (6) stops running.

6. A collision protection auxiliary brake device for coal mine monorail crane according to claim 5, characterized in that: The anti-collision mechanism (10) also includes a third support frame (101), a lifting frame (102), a baffle (103), a third spring (104), a support wheel (105) and a pull rope (106). The upper sides of the front and rear parts of the crane (3) are both connected to the third support frame (101). The upper part of the third support frame (101) is slidably connected to the lifting frame (102). The lifting frame (102) is slidably connected to the baffle (103). The baffle (103) is connected to the lifting frame (102) connected thereto with two left and right third springs (104). The third support frame (101) is connected to the lifting frame (102) connected thereto. ) are rotatably connected to support wheels (105) on the upper sides, and pull ropes (106) are connected between the slide bars (81) and the adjacent lifting frames (102). The pull ropes (106) are in contact with the adjacent support wheels (105). When the slide bars (81) move upward, the pull ropes (106) relax, so that the lifting frame (102) moves downward along the third support frame (101). The support wheels (105) support the pull ropes (106), so that the baffle (103) moves downward to both sides of the material. When the baffle (103) is hit, the baffle (103) is buffered by the action force of the third spring (104).

7. A collision protection auxiliary brake device for coal mine monorail crane according to claim 6, characterized in that: The baffles (103) are all folded.

8. A collision protection auxiliary brake device for coal mine monorail crane according to claim 6, characterized in that: The device also includes a spacing mechanism (11), the spacing mechanism (11) includes a first support block (111), a second support block (112), an adjusting screw (113), a guide rod (114) and a limit block (115), the upper side of the lifting frame (102) is connected to the first support block (111), the upper side of the lifting frame (102) is connected to the second support block (112), the second support block (112) is located outside the first support block (111), and the adjacent first support blocks (111) and second support blocks (112) are rotatably connected with the adjusting screw (113). ), the middle of the lifting frame (102) is connected with a guide rod (114), the guide rod (114) passes through the adjacent baffles (103), the guide rod (114) is slidably connected with a limit block (115), the limit block (115) is in contact with the adjacent baffles (103), the limit block (115) is threadedly connected with the adjacent adjusting screw (113), according to the size of the moving space, the adjusting screw (113) is rotated to make the limit block (115) move on the guide rod (114), push the baffles (103) to move, and adjust the distance between the baffles (103).

9. A collision protection auxiliary brake device for coal mine monorail crane according to claim 8, characterized in that: The adjusting screw rod (113) is provided with a knob.

10. A collision protection auxiliary brake device for coal mine monorail crane according to claim 8, characterized in that: The invention also comprises a protection mechanism (12), the protection mechanism (12) comprising a support arm (121), a protection plate (122) and a second torsion spring (123), the upper sides of the front and rear parts of the crane (3) are both connected to the support arm (121), the support arm (121) is both rotatably connected to the protection plate (122), and the protection plate (122) is connected to the support arm (121) with two left and right second torsion springs (123), the protection plate (122) is tilted and located above the crane (3) by the action force of the second torsion spring (123), when stones and the like fall from above, the protection plate (122) intercepts the stones.

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