Mining monorail crane safety braking vehicle brake

Abstract

The invention belongs to the technical field of brakes, and discloses a mining monorail crane safety braking vehicle brake which comprises a rack, guide grooves are formed in the left side and the right side of the bottom end of the rack correspondingly, guide blocks are movably connected to the bottom ends of the guide grooves in a clamped mode correspondingly, and mounting plates are fixedly mounted at the bottom ends of the guide blocks correspondingly; locking seats are fixedly mounted at the bottom ends of the mounting plates, and brake blocks are mounted at the bottom ends of the locking seats through bolts. According to the device, after upward moving pressure is converted into downward pressing force, the downward pressing force is converted into power for enabling the two brake blocks to be close to each other relatively, so that an operator can operate in a locomotive, and meanwhile due to the fact that the distance between the operating rod and the extension base is far larger than the distance between the extension base and the first fixing base, the brake blocks can be fixed conveniently. The torque on the left side is far larger than the torque on the right side, the downward pressure can be amplified and the braking process can be achieved only by applying small pressure, the problem that a traditional device needs large pressure to achieve braking is avoided, attenuation is reduced, and safety is improved.

Description

Technical Field

[0001] The invention belongs to the technical field of brakes, and in particular relates to a brake for a safety brake vehicle of a mining monorail crane. Background Art

[0002] Mining monorail crane is a kind of lifting and transportation equipment widely used in the mining industry. It is mainly used for material transportation, lifting and suspension in coal mines, metal mines, non-metal mines and other places. Among them, the safety brake car of mining monorail crane is an important part of the mining monorail crane system. Its main function is to provide safety braking for the monorail crane in emergency or under specific conditions to ensure the safety of equipment and personnel. Its braking method generally adopts brakes for braking.

[0003] Conventional brakes used on rails generally use friction locking braking, that is, relying on the friction between the brake pad and the rail to increase the resistance to achieve the braking process. It generally uses manual pressure or cylinder pressure to achieve the braking process. At the same time, the braking force is limited by the weight of the locomotive. No matter which method is used to apply pressure, a large pressure is applied during a long braking process. After frequent braking, the braking system will attenuate due to the large braking force required, which seriously affects the braking distance. It is urgent to design a method to achieve safe braking with less pressure.

[0004] At the same time, during the entire braking process, since the locomotive will move after the brake is released, the entire braking system needs to remain in a locked state during the entire emergency braking, which requires continuous pressure to maintain the braking state. However, the long braking process puts extremely high pressure on the entire system, which can easily cause damage to the braking system and affect the life of the brake, and improvement is urgently needed. Summary of the invention

[0005] The object of the present invention is to provide a brake for a safety brake vehicle of a mining monorail crane to solve the problems raised in the above-mentioned background technology.

[0006] In order to achieve the above-mentioned purpose, the present invention provides the following technical solutions: a safety brake vehicle brake for a mining monorail crane, comprising a frame, guide grooves are provided on both sides of the bottom end of the frame, guide blocks are movably connected at the bottom ends of the guide grooves, mounting plates are fixedly installed at the bottom ends of the guide blocks, locking seats are fixedly installed at the bottom ends of the mounting plates, brake blocks are installed at the bottom ends of the locking seats by bolts, locking assemblies are installed on the sides of the two mounting plates close to the bottom ends and away from each other, a linkage assembly is installed between the two guide blocks, a pressure assembly is fixedly installed at the top end of the frame, the bottom end of the pressure assembly passes through the bottom end of the frame and is connected to the top end of the linkage assembly, and an operating assembly is fixedly installed at one end of the outer side surface of the pressure assembly.

[0007] In actual use, the frame can be fixed on the locomotive, and two brake blocks can be set on both sides of the track, and the gap can be adjusted to ensure that the inner side of the brake block can contact the track. At the same time, the top of the operating component needs to be connected to the external cylinder. At the same time, the locking component needs to be aligned with the driving wheel of the locomotive to ensure that the locking component can be inserted into the hub of the driving wheel to complete the locking process and complete the installation preparation before braking.

[0008] As a further technical solution of the present invention, the operating assembly includes an extended seat, one end of the extended seat is connected to the outer side of the pressure assembly, the inner side of the extended seat is movably connected to a lever via a rotating shaft, and the right side of the lever is movably connected to a first fixed seat via a rotating shaft near the right side of the lever.

[0009] As a further technical solution of the present invention, one end of the first fixing seat away from the lever is connected to the pressure assembly, the left end of the lever is movably connected to an operating rod via a rotating shaft, and the top end of the operating rod is connected to an external oil cylinder.

[0010] When braking is required, the operating lever can be manually lifted up or an upward pulling force can be applied to the operating lever using an oil cylinder. At this time, an upward pulling force can be applied to the left side of the lever. At this time, the lever can rotate relative to the extension seat, that is, the left end of the lever is tilted upward, and the right end of the lever rotates downward. At this time, the lever can synchronously rotate relative to the first fixed seat, and exert downward pressure on the first fixed seat, and exert pressure on the pressure-applying component.

[0011] As a further technical solution of the present invention, the pressure-applying assembly includes a fixed tube, the bottom end of which is connected to the middle of the top end of the frame, the internal movable sleeve of the fixed tube is provided with a movable plate, and the top end of the movable plate is fixedly connected to a movable rod located inside the fixed tube.

[0012] As a further technical solution of the present invention, the top end of the movable rod passes through the top end of the fixed tube and is fixedly connected to a mounting rod, one end of the mounting rod is connected to a first fixed seat, the outer side surface of the fixed tube is connected to an extension seat, and the bottom end of the movable plate is fixedly connected to an extension rod located inside the fixed tube.

[0013] As a further technical solution of the present invention, the bottom end of the extension rod passes through the bottom end of the fixed tube and is connected to the linkage assembly. The outer side surface of the extension rod is movably sleeved with a limit spring located inside the fixed tube. The upper and lower ends of the limit spring are respectively connected to the bottom end of the movable plate and the bottom end of the inner cavity of the fixed tube.

[0014] When the first fixing seat moves downward, it can synchronously drive the mounting rod to move downward, and exert actual downward pressure on the movable rod. At this time, the movable plate moves downward accordingly, and the limit spring is compressed, driving the extension rod to move downward, and exerting downward pressure on the linkage assembly.

[0015] As a further technical solution of the present invention, the linkage assembly includes a movable seat, which is located directly below the frame, the bottom end of the extension rod passes through the bottom end of the frame and is connected to the middle part of the top end of the movable seat, and the linkage assembly also includes two left and right second fixed seats, and the second fixed seats are connected to the relatively close ends of the two guide blocks.

[0016] As a further technical solution of the present invention, a third fixed seat is fixedly installed on both sides of the left and right sides of the top of the movable seat, and the end of the third fixed seat away from the movable seat is movably connected to a connecting rod through a rotating shaft, and the end of the connecting rod away from the third fixed seat is movably connected to the second fixed seat through a rotating shaft.

[0017] When the extension rod is displaced downward under the action of the operating assembly, the movable seat can be driven to move downward, and the connecting rods on both sides are deflected accordingly, that is, the two connecting rods are deflected toward the middle, and the angle between the two connecting rods is reduced accordingly, which can drive the two guide blocks to be relatively close to each other. At this time, the two guide blocks can be guided by the guide grooves to move closer to the middle and shorten the distance, and simultaneously drive the two brake blocks at the bottom to move closer to the middle until they contact the track, and the braking operation is realized through friction.

[0018] When the brake is to be released, the upward thrust on the operating lever can be stopped. At this time, the limit spring can be automatically reset, which can drive the extension rod and the movable rod to move upward. At this time, the lever returns to a parallel state and drives the two guide blocks to return to their initial positions, that is, the two brake blocks are relatively separated, the lock is released, and the brake is released.

[0019] Through the coordinated action of the operating assembly, the pressure-applying assembly and the linkage assembly, the upward pressure is converted into downward pressure, and then the downward pressure is converted into power to bring the two brake blocks relatively close together, so that the operator can operate inside the locomotive. At the same time, since the distance between the operating lever and the extension seat is much larger than the distance between the extension seat and the first fixed seat, the torque on the left side is much larger than the torque on the right side, so that only a small pressure is required to amplify the downward pressure and realize the braking process, avoiding the problem that traditional devices require a large pressure to achieve braking, reducing attenuation and improving safety.

[0020] As a further technical solution of the present invention, the locking assembly includes a limit rod, which is movably connected to the mounting plate at a position near the bottom end, an electromagnet is installed in the middle of the outer side of the limit rod, the right end of the limit rod is fixedly connected to the limit plate, and a return spring is movably connected to the outer side of the limit rod, and the left and right ends of the return spring are respectively connected to one end of the limit plate and one end of the mounting plate.

[0021] As a further technical solution of the present invention, a mounting seat is fixedly installed on the left end of the limit rod, and a guide ball is movably installed on the front of the mounting seat. When the electromagnet and the mounting plate are adsorbed against each other, the locking assembly is in a compressed state. When the locking assembly is in an initial state, the electromagnet and the mounting plate are not adsorbed against each other.

[0022] When the holding brake is completed, since the locking assembly corresponds to the driving wheel of the locomotive at this time, the power of the electromagnet can be turned on, and the electromagnet can be displaced toward the mounting plate and adsorbed thereon. At this time, the limit rod and the limit plate are displaced toward the middle, and the return spring is compressed, and the mounting seat and the guide ball are displaced toward the middle. The guide ball can roll relative to the surface of the driving wheel when the driving wheel has not completely stopped to reduce friction. When the driving wheel stops completely, the mounting seat can be inserted into the wheel hub to complete the locking process of the driving wheel and complete the brake locking.

[0023] By utilizing the clamping braking process to achieve the relative proximity of the brake blocks, the two locking components can be relatively close to each other, and the locking components can be used to achieve a rapid locking process of the drive wheel after the clamping braking. When the drive wheel is locked, the pressure of the braking system can be reduced, so that it does not need to remain in a locked state for a long time, and only a slight clamping state needs to be maintained, which significantly reduces the pressure of the braking system and increases the service life of the brake.

[0024] When the brake is released, the power supply of the electromagnet can be turned off to realize the automatic reset of the reset spring and the automatic reset of the mounting seat, thereby releasing the lock of the drive wheel. At this time, stopping applying pressure to the operating component can automatically release the braking process. If the power supply of the electromagnet is turned on when not braking, at this time, due to the relative distance between the two brake blocks, one end of the mounting seat cannot contact the drive wheel, that is, it cannot be locked, avoiding the state of accidental locking.

[0025] By utilizing the relative displacement process of the two brake blocks, that is, by using the brake blocks to compensate for the distance of the locking assembly, the locking assembly can be brought close to the driving wheel only when the device is performing a clamping brake, thereby realizing the locking process. If the locking assembly is misoperated during travel, the locking process cannot be realized due to limited travel, which significantly improves the safety threshold and avoids safety hazards caused by erroneous locking due to misoperation during the movement process.

[0026] The beneficial effects of the present invention are as follows:

[0027] 1. The present invention converts the upward pressure into downward pressure through the coordinated action of the operating assembly, the pressure-applying assembly and the linkage assembly, and then converts the downward pressure into the power of the two brake blocks to be relatively close, so that the operator can operate in the locomotive. At the same time, because the distance between the operating lever and the extension seat is much larger than the distance between the extension seat and the first fixed seat, the torque on the left side is much larger than the torque on the right side, so that only a small pressure is required to amplify the downward pressure and realize the braking process, avoiding the problem that the traditional device requires a large pressure to realize braking, reducing attenuation and improving safety.

[0028] 2. The present invention utilizes the clamping braking process to achieve the relative proximity of the brake blocks and the relative proximity of the two locking components. The locking components can realize the rapid locking process of the drive wheel after the clamping braking. When the drive wheel is locked, the pressure of the braking system can be reduced, so that it does not need to maintain a locked state for a long time, and only needs to maintain a slight clamping state, which significantly reduces the pressure of the braking system and increases the service life of the brake.

[0029] 3. The present invention utilizes the relative displacement process of the two brake blocks, that is, the brake blocks are used to compensate for the distance of the locking assembly, so that the locking assembly can be close to the driving wheel only when the device is in a clamping brake, thereby realizing the locking process. If the locking assembly is misoperated during the moving process, the locking process cannot be realized due to the limited stroke, which significantly improves the safety threshold and avoids the safety hazard caused by erroneous locking due to misoperation during the moving process. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0031] Figure 2 A separate schematic diagram of the structure of the manipulation assembly of the present invention;

[0032] Figure 3 It is a separate cross-sectional schematic diagram of the internal structure of the pressure-applying assembly of the present invention;

[0033] Figure 4 It is an exploded schematic diagram of the guide groove and guide block structure of the present invention;

[0034] Figure 5 It is a schematic diagram of the coordination of the guide block and the linkage assembly structure of the present invention;

[0035] Figure 6 It is a schematic diagram of the matching structure of the mounting plate and the brake shoe of the present invention;

[0036] Figure 7 It is an exploded schematic diagram of the locking assembly structure of the present invention.

[0037] In the figure: 1. frame; 2. guide groove; 3. guide block; 4. operating assembly; 401. extension seat; 402. lever; 403. first fixed seat; 404. operating lever; 5. pressure assembly; 501. fixed tube; 502. mounting rod; 503. movable rod; 504. movable plate; 505. limit spring; 506. extension rod; 6. linkage assembly; 601. movable seat; 602. second fixed seat; 603. third fixed seat; 604. connecting rod; 7. mounting plate; 8. locking seat; 9. brake block; 10. locking assembly; 101. limit rod; 102. limit plate; 103. return spring; 104. electromagnet; 105. mounting seat; 106. guide ball. DETAILED DESCRIPTION

[0038] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0039] like Figures 1 to 7 As shown, in the embodiment of the present invention, a safety brake vehicle brake for a mining monorail crane includes a frame 1, guide grooves 2 are provided on both sides of the bottom end of the frame 1, guide blocks 3 are movably connected at the bottom ends of the guide grooves 2, mounting plates 7 are fixedly installed at the bottom ends of the guide blocks 3, locking seats 8 are fixedly installed at the bottom ends of the mounting plates 7, brake blocks 9 are installed at the bottom ends of the locking seats 8 by bolts, locking assemblies 10 are installed on the sides of the two mounting plates 7 close to the bottom ends and away from each other, a linkage assembly 6 is installed between the two guide blocks 3, a pressure assembly 5 is fixedly installed at the top end of the frame 1, the bottom end of the pressure assembly 5 passes through the bottom end of the frame 1 and is connected to the top end of the linkage assembly 6, and an operating assembly 4 is fixedly installed at one end of the outer side surface of the pressure assembly 5.

[0040] In actual use, the frame 1 can be fixed on the locomotive, and two brake blocks 9 can be set on both sides of the track, and the gap can be adjusted to ensure that the inner side of the brake block 9 can contact the track. At the same time, the top of the operating component 4 needs to be connected to the external cylinder, and the locking component 10 needs to correspond to the driving wheel of the locomotive to ensure that the locking component 10 can be inserted into the hub of the driving wheel to complete the locking process and complete the installation preparation before braking.

[0041] like Figure 1 and Figure 2As shown, the operating component 4 includes an extension seat 401, one end of the extension seat 401 is connected to the outer side of the pressure component 5, the inner side of the extension seat 401 is movably connected to the lever 402 through a rotating shaft, the extension seat 401 is close to the right side of the lever 402, the right side of the lever 402 is movably connected to the first fixed seat 403 through a rotating shaft, the end of the first fixed seat 403 away from the lever 402 is connected to the pressure component 5, the left end of the lever 402 is movably connected to the operating rod 404 through a rotating shaft, and the top of the operating rod 404 is connected to the external oil cylinder.

[0042] When braking is required, the operating rod 404 can be manually lifted up or an upward pulling force can be applied to the operating rod 404 using a cylinder. At this time, an upward pulling force can be applied to the left side of the lever 402. At this time, the lever 402 can rotate relative to the extension seat 401, that is, the left end of the lever 402 is tilted upward, and the right end of the lever 402 is rotated downward. At this time, the lever 402 can synchronously rotate relative to the first fixed seat 403, and apply downward pressure to the first fixed seat 403, and apply pressure to the pressure component 5.

[0043] like Figure 1 and Figure 3 As shown, the pressure-applying assembly 5 includes a fixed tube 501, the bottom end of the fixed tube 501 is connected to the middle part of the top end of the frame 1, the fixed tube 501 is movably sleeved with a movable plate 504 inside, the top of the movable plate 504 is fixedly connected with a movable rod 503 located inside the fixed tube 501, the top of the movable rod 503 passes through the top end of the fixed tube 501 and is fixedly connected with a mounting rod 502, one end of the mounting rod 502 is connected to the first fixed seat 403, the outer side surface of the fixed tube 501 is connected to the extension seat 401, the bottom end of the movable plate 504 is fixedly connected with an extension rod 506 located inside the fixed tube 501, the bottom end of the extension rod 506 passes through the bottom end of the fixed tube 501 and is connected to the linkage assembly 6, the outer side surface of the extension rod 506 is movably sleeved with a limit spring 505 located inside the fixed tube 501, and the upper and lower ends of the limit spring 505 are respectively connected to the bottom end of the movable plate 504 and the bottom end of the inner cavity of the fixed tube 501.

[0044] When the first fixing seat 403 moves downward, it can synchronously drive the installation rod 502 to move downward, and exert actual downward pressure on the movable rod 503. At this time, the movable plate 504 moves downward accordingly, and the limit spring 505 is compressed, driving the extension rod 506 to move downward, and exerting downward pressure on the linkage assembly 6.

[0045] like Figure 1 and Figure 4 as well as Figure 5As shown, the linkage assembly 6 includes a movable seat 601, which is located directly below the frame 1, and the bottom end of the extension rod 506 passes through the bottom end of the frame 1 and is connected to the middle part of the top of the movable seat 601. The linkage assembly 6 also includes two left and right second fixed seats 602, and the second fixed seats 602 are connected to the relatively close ends of the two guide blocks 3. The left and right sides of the top of the movable seat 601 are fixedly installed with third fixed seats 603, and the end of the third fixed seat 603 away from the movable seat 601 is movably connected to a connecting rod 604 through a rotating shaft, and the end of the connecting rod 604 away from the third fixed seat 603 is movably connected to the second fixed seat 602 through a rotating shaft.

[0046] Embodiment: When the extension rod 506 is displaced downward under the action of the operating assembly 4, the movable seat 601 can be driven to displace downward, and the connecting rods 604 on both sides are deflected accordingly, that is, the two connecting rods 604 are deflected toward the middle, and the angle between the two connecting rods 604 is reduced accordingly, and the two guide blocks 3 can be driven to be relatively close to each other. At this time, the two guide blocks 3 can be guided by the guide groove 2 to move closer to the middle and shorten the distance, and simultaneously drive the two brake blocks 9 at the bottom to move closer to the middle until they contact the track, and the braking operation is realized by friction.

[0047] When the brake is to be released, the upward thrust on the operating rod 404 can be stopped. At this time, the limit spring 505 can be automatically reset, which can drive the extension rod 506 and the movable rod 503 to move upward. At this time, the lever 402 returns to a parallel state and drives the two guide blocks 3 to return to their initial positions, that is, the two brake blocks 9 are relatively far away from each other, the locking is released, and the brake is released.

[0048] Through the coordinated action of the operating component 4, the pressure-applying component 5 and the linkage component 6, the upward pressure is converted into a downward pressure, and then the downward pressure is converted into a power for the two brake blocks 9 to be relatively close, so that the operator can operate inside the locomotive. At the same time, since the distance between the operating rod 404 and the extension seat 401 is much larger than the distance between the extension seat 401 and the first fixed seat 403, the torque on the left side is much larger than the torque on the right side, so that only a small pressure is required to amplify the downward pressure and realize the braking process, avoiding the problem that traditional devices require a large pressure to achieve braking, reducing attenuation, and improving safety.

[0049] like Figure 1 and Figure 4 as well as Figure 7As shown, the locking assembly 10 includes a limit rod 101, which is movably sleeved with the mounting plate 7 near the bottom end. An electromagnet 104 is installed in the middle of the outer side surface of the limit rod 101, and the right end of the limit rod 101 is fixedly connected to the limit plate 102. A return spring 103 is movably sleeved on the outer side surface of the limit rod 101. The left and right ends of the return spring 103 are respectively connected to one end of the limit plate 102 and one end of the mounting plate 7. A mounting seat 105 is fixedly installed on the left end of the limit rod 101, and a guide ball 106 is movably installed on the front of the mounting seat 105. When the electromagnet 104 and the mounting plate 7 are adsorbed against each other, the locking assembly 10 is in a compressed state. When the locking assembly 10 is in an initial state, the electromagnet 104 is not adsorbed against the mounting plate 7.

[0050] Embodiment: When the holding brake is completed, since the locking assembly 10 corresponds to the driving wheel of the locomotive at this time, the power supply of the electromagnet 104 can be turned on, and the electromagnet 104 can be displaced toward the mounting plate 7 and adsorbed thereon. At this time, the limit rod 101 and the limit plate 102 are displaced toward the middle, and the return spring 103 is compressed, and the mounting seat 105 and the guide ball 106 are displaced toward the middle, and the guide ball 106 can roll relative to the surface of the driving wheel when the driving wheel has not completely stopped to reduce friction. When the driving wheel stops completely, the mounting seat 105 can be inserted into the wheel hub to complete the locking process of the driving wheel and complete the brake locking.

[0051] The brake blocks 9 can be brought relatively close to each other by utilizing the clamping braking process, and the two locking components 10 can be brought relatively close to each other. The locking components 10 can be used to quickly lock the drive wheels after the clamping braking. When the drive wheels are locked, the pressure of the braking system can be reduced, so that the brakes do not need to be locked for a long time, but only need to be slightly clamped. This significantly reduces the pressure of the braking system and increases the service life of the brakes.

[0052] When the brake is released, the power supply of the electromagnet 104 can be turned off to realize the automatic resetting of the reset spring 103 and the automatic resetting of the mounting seat 105, thereby releasing the lock on the drive wheel. At this time, stopping applying pressure to the operating component 4 can automatically release the braking process. If the power supply of the electromagnet 104 is turned on when not braking, at this time, due to the relative distance between the two brake blocks 9, one end of the mounting seat 105 cannot contact the drive wheel, that is, it cannot be locked, avoiding the state of accidental locking.

[0053] By utilizing the relative displacement process of the two brake blocks 9, that is, by using the brake blocks 9 to compensate for the distance of the locking assembly 10, the locking assembly 10 can be brought close to the driving wheel only when the device is performing a clamping brake, thereby realizing the locking process. If the locking assembly 10 is misoperated during the moving process, the locking process cannot be realized due to the limited stroke, which significantly improves the safety threshold and avoids safety hazards caused by erroneous locking due to misoperation during the moving process.

[0054] Working principle and usage process:

[0055] When in use, the frame 1 can be fixed on the locomotive, and two brake blocks 9 can be set on both sides of the track, and the gap can be adjusted to ensure that the inner side of the brake block 9 can contact the track. At the same time, the top of the operating component 4 needs to be connected to the external cylinder, and the locking component 10 needs to be aligned with the driving wheel of the locomotive to ensure that the locking component 10 can be inserted into the wheel hub of the driving wheel to complete the locking process, and complete the installation preparation before braking;

[0056] When braking is required, the operating rod 404 can be manually lifted upward or an upward pulling force can be applied to the operating rod 404 using an oil cylinder. At this time, an upward pulling force can be applied to the left side of the lever 402. At this time, the lever 402 can rotate relative to the extension seat 401, that is, the left end of the lever 402 tilts upward, and the right end of the lever 402 rotates downward. At this time, the lever 402 can synchronously rotate relative to the first fixed seat 403, and exert downward pressure on the first fixed seat 403, and exert pressure on the pressure component 5;

[0057] When the first fixing seat 403 moves downward, it can synchronously drive the mounting rod 502 to move downward, and exert actual downward pressure on the movable rod 503. At this time, the movable plate 504 moves downward accordingly, and the limit spring 505 is compressed, and drives the extension rod 506 to move downward, and exerts downward pressure on the linkage assembly 6.

[0058] When the extension rod 506 is displaced downward under the action of the operating assembly 4, the movable seat 601 can be driven to move downward, and the connecting rods 604 on both sides are deflected accordingly, that is, the two connecting rods 604 are deflected toward the middle, and the angle between the two connecting rods 604 is reduced accordingly, and the two guide blocks 3 can be driven to be relatively close to each other. At this time, the two guide blocks 3 can be guided by the guide groove 2 to move closer to the middle and shorten the distance, and simultaneously drive the two brake blocks 9 at the bottom to move closer to the middle until they contact the track, and the braking operation is realized by friction.

[0059] When the brake is to be released, the upward thrust applied to the operating rod 404 can be stopped, and the limit spring 505 can be automatically reset, which can drive the extension rod 506 and the movable rod 503 to move upward. At this time, the lever 402 returns to the parallel state and drives the two guide blocks 3 to return to the initial position, that is, the two brake blocks 9 are relatively separated, the locking is released, and the brake is released;

[0060] When the holding brake is completed, since the locking assembly 10 corresponds to the driving wheel of the locomotive at this time, the power supply of the electromagnet 104 can be turned on, and the electromagnet 104 can move toward the mounting plate 7 and adsorb thereto. At this time, the limit rod 101 and the limit plate 102 move toward the middle, and the return spring 103 is compressed, and the mounting seat 105 and the guide ball 106 move toward the middle, and the guide ball 106 can roll relative to the surface of the driving wheel when the driving wheel is not completely stopped to reduce friction. When the driving wheel is completely stopped, the mounting seat 105 can be inserted into the wheel hub to complete the locking process of the driving wheel and complete the brake locking;

[0061] When the brake is released, the power supply of the electromagnet 104 can be turned off to realize the automatic resetting of the reset spring 103 and the automatic resetting of the mounting seat 105, thereby releasing the lock of the drive wheel. At this time, stopping applying pressure to the operating component 4 can automatically release the braking process. If the power supply of the electromagnet 104 is turned on when not braking, at this time, due to the relative distance between the two brake blocks 9, one end of the mounting seat 105 cannot contact the drive wheel, that is, it cannot be locked, avoiding an unlocked state.

[0062] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A safety brake for a mining monorail crane, comprising a frame (1), characterized in that: The left and right sides of the bottom end of the frame (1) are provided with guide grooves (2), the bottom ends of the guide grooves (2) are movably connected with guide blocks (3), the bottom ends of the guide blocks (3) are fixedly installed with mounting plates (7), the bottom ends of the mounting plates (7) are fixedly installed with locking seats (8), the bottom ends of the locking seats (8) are fixedly installed with brake blocks (9) through bolts, the two mounting plates (7) are both installed with locking components (10) on the sides close to the bottom ends and away from each other, a linkage component (6) is installed between the two guide blocks (3), a pressure component (5) is fixedly installed at the top end of the frame (1), the bottom end of the pressure component (5) passes through the bottom end of the frame (1) and is connected to the top end of the linkage component (6), and one end of the outer side of the pressure component (5) is fixedly installed with a control component (4).

2. The safety brake of a mining monorail crane according to claim 1 is characterized in that: The operating assembly (4) comprises an extension seat (401), one end of which is connected to the outer side of the pressure assembly (5), the inner side of the extension seat (401) is movably connected to a lever (402) via a rotating shaft, and the extension seat (401) is located close to the right side of the lever (402), and the right side of the lever (402) is movably connected to a first fixed seat (403) via a rotating shaft.

3. The safety brake of a mining monorail crane according to claim 2 is characterized in that: The end of the first fixing seat (403) away from the lever (402) is connected to the pressure component (5), and the left end of the lever (402) is movably connected to an operating rod (404) via a rotating shaft, and the top end of the operating rod (404) is connected to an external oil cylinder.

4. The safety brake for a mining monorail crane according to claim 3 is characterized in that: The pressure-applying assembly (5) comprises a fixed tube (501), the bottom end of the fixed tube (501) being connected to the middle of the top end of the frame (1), the interior of the fixed tube (501) being movably sleeved with a movable plate (504), the top end of the movable plate (504) being fixedly connected to a movable rod (503) located inside the fixed tube (501).

5. The safety brake of a mining monorail crane according to claim 4 is characterized in that: The top end of the movable rod (503) passes through the top end of the fixed tube (501) and is fixedly connected to the mounting rod (502); one end of the mounting rod (502) is connected to the first fixed seat (403); the outer side surface of the fixed tube (501) is connected to the extension seat (401); and the bottom end of the movable plate (504) is fixedly connected to the extension rod (506) located inside the fixed tube (501).

6. The brake for a safety brake vehicle for a mining monorail crane according to claim 5, characterized in that: The bottom end of the extension rod (506) passes through the bottom end of the fixed tube (501) and is connected to the linkage assembly (6); the outer side surface of the extension rod (506) is movably sleeved with a limit spring (505) located inside the fixed tube (501); the upper and lower ends of the limit spring (505) are respectively connected to the bottom end of the movable plate (504) and the bottom end of the inner cavity of the fixed tube (501).

7. The safety brake of a mining monorail crane according to claim 6, characterized in that: The linkage assembly (6) comprises a movable seat (601), wherein the movable seat (601) is located directly below the frame (1), the bottom end of the extension rod (506) passes through the bottom end of the frame (1) and is connected to the middle part of the top end of the movable seat (601), and the linkage assembly (6) further comprises two left and right second fixed seats (602), wherein the second fixed seats (602) are connected to the relatively close ends of the two guide blocks (3).

8. The safety brake of a mining monorail crane according to claim 7, characterized in that: A third fixed seat (603) is fixedly installed on both left and right sides of the top of the movable seat (601); one end of the third fixed seat (603) away from the movable seat (601) is movably connected to a connecting rod (604) via a rotating shaft; and one end of the connecting rod (604) away from the third fixed seat (603) is movably connected to the second fixed seat (602) via a rotating shaft.

9. The safety brake of a mining monorail crane according to claim 1, characterized in that: The locking assembly (10) comprises a limit rod (101), the limit rod (101) is movably sleeved with a position near the bottom end of the mounting plate (7), an electromagnet (104) is installed in the middle of the outer side surface of the limit rod (101), the right end of the limit rod (101) is fixedly connected to the limit plate (102), and a return spring (103) is movably sleeved on the outer side surface of the limit rod (101), and the left and right ends of the return spring (103) are respectively connected to one end of the limit plate (102) and one end of the mounting plate (7).

10. The safety brake of a mining monorail crane according to claim 9, characterized in that: A mounting seat (105) is fixedly mounted on the left end of the limiting rod (101), and a guide ball (106) is movably mounted on the front of the mounting seat (105). When the electromagnet (104) and the mounting plate (7) are mutually attracted, the locking assembly (10) is in a compressed state. When the locking assembly (10) is in an initial state, the electromagnet (104) and the mounting plate (7) are not mutually attracted.

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