Electromagnetic braking and overspeed protection integrated lift car and elevator

Abstract

The invention discloses an electromagnetic braking and overspeed protection integrated lift car and lift, and relates to the technical field of mine hoistway lifts.The electromagnetic braking and overspeed protection integrated lift car comprises a car body arranged in the middle of two first rails and further comprises electromagnetic braking assemblies used for braking the car body, and the electromagnetic braking assemblies are arranged on the two sides of the car body; the electromagnetic braking assembly comprises first shells fixedly connected to the outer walls of the two sides of the compartment body, the outer walls of the two sides of the first shells are fixedly connected with expansion shells, and the expansion shells communicate with the first shells. The stopping capacity of the compartment body is improved, the elevator can stably stop at a higher speed during descending or ascending, and therefore the purpose of efficiently conveying materials and the like during mine operation is achieved.

Description

Technical Field

[0001] The invention relates to the technical field of mine shaft elevators, and in particular to an electromagnetic braking and overspeed protection integrated car and elevator. Background Art

[0002] In mining operations, elevators are one of the indispensable mining machinery. Mine elevators are installed on the ground and use wire ropes to drive the car along the shaft or ramp to move. They are used to lift coal, ore, gangue in vertical and inclined shafts, as well as to lift personnel, lower materials, tools and equipment, etc.

[0003] At present, in order to ensure the stability of starting and stopping, the existing elevators will be equipped with a set of brakes at the tail of the traction motor to ensure that the motor is immediately locked when it stops or the power fails, to avoid the elevator car from shaking greatly at the start and stop or even falling, thereby ensuring the stability of the car during the entire elevator lifting process. However, most of the existing cars do not have functions such as electromagnetic braking, and only rely on the brake of the traction motor to realize the braking work during the lifting process of the car. The braking response speed is slow, and in order to ensure the safety of the car during braking, the speed of the entire elevator is also relatively low, which affects the elevator's material transportation efficiency during mining operations. Summary of the invention

[0004] The purpose of the present invention is to solve the shortcomings of the prior art and propose an electromagnetic brake and overspeed protection integrated car and elevator. Its advantages are: through the mutual cooperation between the electromagnetic brake component and the overspeed protection component, the stopping time of the car body when overspeeding can be further shortened, the stopping ability of the car body is improved, and the elevator can be stopped smoothly at a faster speed when descending or ascending, thereby achieving the purpose of efficient transportation of materials during mining operations.

[0005] In order to achieve the above object, the present invention adopts the following technical solutions:

[0006] An electromagnetic braking and overspeed protection integrated elevator car comprises a car body, which is arranged in the middle of two sets of first rails, and further comprises:

[0007] An electromagnetic brake assembly for braking a compartment, the electromagnetic brake assembly is arranged on both sides of the compartment, the electromagnetic brake assembly includes a first shell fixedly connected to the outer walls on both sides of the compartment, the outer walls on both sides of the first shell are fixedly connected with an expansion shell, the expansion shell is connected to the first shell, the end of the first shell is concave, the outer walls on both sides of the end of the first shell are provided with through grooves, the first shell is provided with an inductor coil and an iron block, the upper and lower sides of the rectangular part are rotatably connected with a first connecting rod, the end of the first connecting rod away from the rectangular part is rotatably connected with a fixing plate, the outer wall on one side of the fixing plate is fixedly connected with a first brake pad, and an elastic assembly is provided on one side of the rectangular part;

[0008] An overspeed protection component for limiting the speed of the carriage;

[0009] A transmission assembly used to provide a power source for the lateral movement of the induction coil.

[0010] Through the above technical solution: two sets of brake pads in a clamped state can achieve a secondary braking effect on the car body, thereby cooperating with the primary braking of the brake to improve the braking efficiency and speed of the car body, and avoiding the car body from rising or falling too far due to inertia during braking.

[0011] The present invention is further configured such that the overspeed protection component includes a locking component and a second shell arranged on the top of the top plate, the second shell is fixedly connected to the car body through a cross bar, a movable groove is provided inside the second shell, a second brake pad is provided inside the movable groove, the cross-section of the second brake pad is a right-angled trapezoid, the second brake pad is located on one side of the second track, a fixing frame is fixedly connected to the top of the second brake pad, a cross column is fixedly connected to one side of the fixing frame, a fixed sleeve is fixedly connected to one end of the cross column away from the fixing frame, and a pulling component fixedly connected to the fixed sleeve is provided on one side of the second track.

[0012] Through the above technical solution: the car body can be stopped to avoid the car body falling or rising and colliding with the top plate, so that the car body has the function of overspeed protection.

[0013] The present invention is further configured such that the pulling assembly includes a second steel wire rope fixedly connected to the circumferential inner wall of the fixed sleeve, the circumferential outer wall of the second steel wire rope is respectively transmission-connected to the first rotating wheel and the second rotating wheel, the top outer wall of the top plate is fixedly connected to the support plate, the outer wall of one side of the support plate is rotationally connected to the second rotating column, and the first rotating wheel is fixedly connected to the circumferential outer wall of the second rotating column.

[0014] Through the above technical solution: the first rotating wheel and the second rotating wheel can be driven to rotate together through the second steel wire rope, thereby ensuring that the overspeed protection component can work stably.

[0015] The present invention is further configured such that the locking assembly includes a rotating disk fixedly connected to the circumferential outer wall of the second rotating cylinder, the top outer wall of the top plate is fixedly connected to a locking ring plate, the circumferential inner wall of the locking ring plate is fixedly connected to matching hooks distributed in a circle at equal distances, one side outer wall of the rotating disk is rotatably connected to a hook, one end of a group of hooks is rotatably connected to a second connecting rod, the other end of the second connecting rod is rotatably connected to another hook, one side outer wall of the rotating disk is rotatably connected to a telescopic rod, the circumferential outer wall of the telescopic rod is sleeved with a second spring, and one end of the telescopic rod is rotatably connected to a group of hooks.

[0016] Through the above technical solution: the car body is stopped, avoiding the car body from falling or rising and colliding with the top plate.

[0017] The present invention is further configured such that a guide groove is provided inside the iron block, a guide column is fixedly connected to an inner wall of one side of the first shell, and one end of the guide column is located inside the guide groove.

[0018] Through the above technical solution: by arranging a limit block at one end of the guide column, it is possible to prevent the iron block from sliding out of the end of the guide column, thereby ensuring that the iron block can stably perform horizontal movement.

[0019] The present invention is further configured such that the first brake pad is located inside the through groove, the iron block includes an arc-shaped portion and a rectangular portion, the arc-shaped portion is attracted to the inductor coil, a fixed cylinder is fixedly connected to an inner wall on one side of the first shell, a first spring is fixedly connected to an inner wall on one side of the fixed cylinder, one end of the first spring is fixedly connected to a movable rod, and an end of the movable rod away from the first spring is fixedly connected to an outer wall on one side of the iron block.

[0020] Through the above technical solution: the arc-shaped portion can increase the attraction area between the inductor coil and ensure that the attraction between the iron block and the inductor coil is more firm.

[0021] The present invention is further configured such that the transmission assembly includes a tooth plate fixedly connected to the circumferential outer wall of the fixed frame, the cross-section of the tooth plate is Z-shaped, a tooth groove is provided on one side of the tooth plate, the tooth plate meshes with the gear through the tooth groove, a first rotating column is fixedly connected to the circumferential inner wall of the gear, both ends of the first rotating column are fixedly connected to the first transmission wheel, the circumferential outer wall of the first transmission wheel is transmission-connected to a transmission belt, and the first transmission wheel is transmission-connected to the second transmission wheel through the transmission belt.

[0022] Through the above technical solution: during the rotation of the first rotating column, the first transmission wheel can drive the transmission belt and the second transmission wheel to rotate, thereby providing a power source for the subsequent rotation of the screw rod.

[0023] The present invention is further configured such that the inner walls on both sides of the expansion shell are rotatably connected with threaded screws, one end of the threaded screws is fixedly connected to the second transmission wheel, the circumferential outer wall of the threaded screws is meshed with a threaded sleeve, and the threaded sleeve is fixedly connected to the inductor coil.

[0024] Through the above technical scheme: the stopping efficiency of the car body when overspeeding is accelerated, and the first brake pad can achieve friction stopping of the car body in the X-axis direction, and the second brake pad can achieve friction stopping of the car body in the Z-axis direction. Through the mutual cooperation between the electromagnetic brake component and the overspeed protection component, the stopping time of the car body when overspeeding can be further shortened, and the stopping ability of the car body is improved, so that the elevator can stop smoothly at a faster speed when descending or ascending, thereby achieving the purpose of efficient transportation of materials during mining operations.

[0025] The present invention is further configured such that the inner walls on both sides of the other expansion shell are fixedly connected with guide rods, the circumferential outer walls of the guide rods are sleeved with guide cylinders, and the guide cylinders are fixedly connected to the inductor coil.

[0026] Through the above technical solution: by sliding the guide cylinder on the outer wall of the guide rod, a good limiting and guiding effect can be achieved on the horizontal movement of the threaded sleeve, ensuring that the threaded sleeve can move stably.

[0027] A lift adopts any one of the electromagnetic braking and overspeed protection integrated elevator cars, including a support platform fixedly connected to the top outer wall of a top plate, the top outer wall of the support platform fixedly connected to a motor, the output end of the motor fixedly connected to a worm, the worm meshing with a worm wheel, the circumferential inner wall of the worm wheel fixedly connected to a rotating rod, the circumferential outer wall of the rotating rod fixedly connected to a traction wheel, the circumferential outer wall of the traction wheel is provided with a first steel wire rope, the top outer wall of the car body is fixedly connected to a mounting frame, one end of the first steel wire rope is fixedly connected to the mounting frame, the end of the first steel wire rope away from the car body is fixedly connected to a counterweight frame, one side of the first track is fixedly connected to a mounting plate, and one end of the motor is provided with a brake.

[0028] Through the above technical solution: the elevator can realize the prompting and lowering of the car body.

[0029] The beneficial effects of the present invention are:

[0030] 1. In the present invention, after the elevator lifts the car body to the specified position, the output shaft can be instantly locked by the brake device at the tail of the motor, thereby realizing a primary braking of the car body. At the same time, the inductor coil located inside the first shell body will also be instantly powered off. When the inductor coil is instantly powered off, the magnetic field around it will also disappear immediately. At this time, the first spring in the stretched state inside the fixed cylinder will immediately restore its deformation, driving the movable rod to move toward the inside of the fixed cylinder. When the movable rod moves, it can pull the iron block away from the inductor coil. When the iron block gradually moves away from the inductor coil, the angle between the first connecting rod and the fixed plate will gradually increase, so that the fixed plate and the first brake pad can be quickly pushed out from the inside of the first shell body until the two groups of first brake pads are pressed against the outer wall of the first track. At this time, the two groups of brake pads in the clamped state can achieve a secondary braking effect on the car body, thereby cooperating with the primary braking of the brake device to improve the braking efficiency and speed of the car body, and avoid the situation where the car body rises or falls too far due to inertia during braking.

[0031] 2. The present invention can achieve rapid stopping of the car body when overspeeding, thereby ensuring the safety of the elevator during operation. Specifically, an overspeed protection component is provided. When a fault occurs during the operation of the elevator and overspeeding occurs, the speed of the car body rising or falling will also increase. When the lifting speed of the car body increases, the transmission speed of the second wire rope will also be further improved, so that the rotation speed of the first rotating wheel can be increased. When the rotation speed of the first rotating wheel increases, the centrifugal force exerted on the counterweight hook on one side of the rotating disk will also increase, thereby causing the two sets of hooks to move from the center of the rotating disk to both sides and engage with the matching hooks. At this time, the rotating disk cannot continue to rotate. When the rotating disk cannot rotate, the second wire rope will also stop. The suddenly stopped second wire rope will pull the fixed sleeve upward. When the fixed sleeve is subjected to an upward pulling force, it can drive the second brake pad to rise, and the cross-section of the second brake pad is a right-angled trapezoid, so that the two sets of second brake pads can clamp the two sides of the second track when rising, thereby achieving the stopping of the car body, avoiding the situation where the car body falls or rises and collides with the top plate, so that the car body has the function of overspeed protection.

[0032] 3. The present invention can further shorten the stopping time of the car body when it is overspeeding through the mutual cooperation between the electromagnetic brake component and the overspeed protection component, improve the stopping ability of the car body, and enable the elevator to stop smoothly at a faster speed when descending or ascending, thereby achieving the purpose of efficient transportation of materials during mining operations. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] Figure 1 This is a schematic diagram of the overall structure of an electromagnetic braking and overspeed protection integrated car and elevator proposed by the present invention;

[0034] Figure 2The present invention proposes an electromagnetic braking and overspeed protection integrated car and elevator Figure 1 A schematic diagram of the enlarged structure at A in the middle;

[0035] Figure 3 The present invention proposes an electromagnetic braking and overspeed protection integrated car and elevator Figure 1 A schematic diagram of the enlarged structure at B in the middle;

[0036] Figure 4 A schematic diagram of the structure of an electromagnetic braking and overspeed protection integrated car and elevator proposed by the present invention;

[0037] Figure 5 This is a schematic diagram of the internal structure of the first shell of an electromagnetic braking and overspeed protection integrated elevator and lift proposed by the present invention;

[0038] Figure 6 The present invention proposes an electromagnetic braking and overspeed protection integrated car and elevator Figure 5 Schematic diagram of the enlarged structure at C in the middle;

[0039] Figure 7 This is a schematic diagram of a first shell half-section structure of an electromagnetic braking and overspeed protection integrated car and elevator proposed by the present invention;

[0040] Figure 8 This is a schematic diagram of the overall cross-sectional plan structure of an electromagnetic braking and overspeed protection integrated car and elevator proposed by the present invention;

[0041] Fig. 9 The present invention proposes an electromagnetic braking and overspeed protection integrated car and elevator Figure 8 Schematic diagram of the enlarged structure at D in the middle;

[0042] Fig.10 This is a structural schematic diagram of an electromagnetic braking and overspeed protection integrated car and an elevator electromagnetic braking component, a transmission component and an overspeed protection component proposed by the present invention;

[0043] Fig.11 The present invention provides a schematic cross-sectional plan view of a locking ring plate of an integrated electromagnetic braking and overspeed protection car and elevator.

[0044] In the figure: 1, box; 2, first track; 3, mounting plate; 4, top plate; 6, electromagnetic brake assembly; 6001, first shell; 6002, through groove; 6003, expansion shell; 6004, threaded screw; 6005, threaded sleeve; 6006, inductor; 6007, guide rod; 6008, guide cylinder; 6009, iron block; 6010, fixed cylinder; 6011, fixed plate; 6012, first brake pad; 6013, first connecting rod; 6014, guide column; 6015, movable rod; 6016, first spring; 6017, guide groove; 7, first steel wire rope; 8, transmission assembly; 8001, tooth plate; 8002, first rotating column; 8003, first transmission wheel; 8004, transmission belt; 8005 , gear; 8006, second transmission wheel; 9, overspeed protection component; 9001, first rotating wheel; 9002, second rotating column; 9003, second steel wire rope; 9004, support plate; 9005, rotating disk; 9006, second rotating wheel; 9007, fixed sleeve; 9008, cross column; 9009, second shell; 9010, second brake pad; 9011, movable groove; 9012, fixed frame; 9013, locking ring plate; 9014, matching hook; 9015, hook; 9016, second connecting rod; 9017, telescopic rod; 9018, second spring; 10, mounting frame; 11, worm; 12, worm wheel; 13, traction wheel; 14, brake; 15, support platform; 16, motor; 17, second track. DETAILED DESCRIPTION

[0045] The technical solution of this patent is further described in detail below in conjunction with specific implementation methods.

[0046] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0047] In the description of this patent, it should be understood that the terms "center", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing this patent and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on this patent.

[0048] In the description of this patent, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", and "set" should be understood in a broad sense, for example, it can be fixedly connected or set, or it can be detachably connected or set, or connected or set in one piece. For ordinary technicians in this field, the specific meanings of the above terms in this patent can be understood according to specific circumstances.

[0049] Reference Figure 1-Figure 11 , an electromagnetic braking and overspeed protection integrated car, comprising a car body 1, the car body 1 is arranged in the middle of two sets of first rails 2, and also includes:

[0050] The electromagnetic brake assembly 6 for braking the compartment 1 is arranged on both sides of the compartment 1. The electromagnetic brake assembly 6 includes a first shell 6001 fixedly connected to the outer walls on both sides of the compartment 1. The outer walls on both sides of the first shell 6001 are fixedly connected with an expansion shell 6003. The expansion shell 6003 is connected to the first shell 6001. The end of the first shell 6001 is concave. The outer walls on both sides of the end of the first shell 6001 are provided with through grooves 6002. The interior of the first shell 6001 is provided with an inductor coil 6006 and an iron block 6009. The upper and lower sides of the rectangular portion are rotatably connected to the first connecting rod 6013, and one end of the first connecting rod 6013 away from the rectangular portion is rotatably connected to the fixed plate 6011, and the outer wall of one side of the fixed plate 6011 is fixedly connected to the first brake pad 6012. An elastic component is provided on one side of the rectangular portion, and the two groups of brake pads in a clamped state can achieve a secondary braking effect on the car body 1, thereby cooperating with the primary braking of the brake device 14 to improve the braking efficiency and speed of the car body 1, and avoid the car body 1 from rising or falling too far due to inertia during braking.

[0051] An overspeed protection component 9 for limiting the speed of the carriage 1;

[0052] A transmission assembly 8 is used to provide a power source for the lateral movement of the inductor coil 6006.

[0053] Reference Figure 8-Figure 11The overspeed protection assembly 9 includes a locking assembly and a second shell 9009 arranged on the top of the top plate 4. The second shell 9009 is fixedly connected to the compartment 1 through a cross bar. A movable groove 9011 is provided inside the second shell 9009. A second brake pad 9010 is arranged inside the movable groove 9011. The cross section of the second brake pad 9010 is a right-angle trapezoid. The second brake pad 9010 is located on one side of the second track 17. A fixing frame 9012 is fixedly connected to the top of the second brake pad 9010. A cross column 9008 is fixedly connected to one side of the fixing frame 9012. The cross column 90 08 One end away from the fixed frame 9012 is fixedly connected with a fixed sleeve 9007, and one side of the second track 17 is provided with a pulling component fixedly connected with the fixed sleeve 9007. When the fixed sleeve 9007 is subjected to an upward pulling force, it can drive the second brake pad 9010 to rise, and the cross-section of the second brake pad 9010 is a right-angled trapezoid, so that the two groups of second brake pads 9010 can clamp the two sides of the second track 17 when rising, thereby achieving the stopping of the car body 1 and avoiding the situation that the car body 1 falls or rises and collides with the top plate 4, so that the car body 1 has the function of overspeed protection.

[0054] Reference Figure 8-Figure 11 The pulling assembly includes a second steel wire rope 9003 fixedly connected to the circumferential inner wall of the fixed sleeve 9007, the circumferential outer wall of the second steel wire rope 9003 is respectively connected to the first rotating wheel 9001 and the second rotating wheel 9006, the top outer wall of the top plate 4 is fixedly connected to the support plate 9004, the outer wall of one side of the support plate 9004 is rotatably connected to the second rotating column 9002, the first rotating wheel 9001 is fixedly connected to the circumferential outer wall of the second rotating column 9002, and the second steel wire rope 9003 can drive the first rotating wheel 9001 and the second rotating wheel 9006 to rotate together, thereby ensuring that the overspeed protection assembly 9 can work stably.

[0055] Reference Fig.11The locking assembly includes a rotating disk 9005 fixedly connected to the circumferential outer wall of the second rotating column 9002, a locking ring plate 9013 is fixedly connected to the top outer wall of the top plate 4, and the circumferential inner wall of the locking ring plate 9013 is fixedly connected to the matching hooks 9014 distributed in a circle at equal distances, a hook 9015 is rotatably connected to the outer wall of one side of the rotating disk 9005, one end of a group of hooks 9015 is rotatably connected to a second connecting rod 9016, and the other end of the second connecting rod 9016 is rotatably connected to another hook 9015, and a telescopic rod 9017 is rotatably connected to the outer wall of one side of the rotating disk 9005, and a second spring 9018 is sleeved on the circumferential outer wall of the telescopic rod 9017, and a group of hooks 9015 are rotatably connected at one end of the telescopic rod 9017. When a fault occurs during the operation of the elevator and overspeed occurs, the speed of the car body 1 rising or falling will also increase. When the lifting speed of the body 1 increases, the transmission speed of the second steel wire rope 9003 will also be further improved, so that the rotation speed of the first rotating wheel 9001 can be increased. When the rotation speed of the first rotating wheel 9001 increases, the centrifugal force exerted on the counterweight hook 9015 on one side of the rotating disk 9005 will also increase, so that the two sets of hooks 9015 move from the center of the rotating disk 9005 to both sides and engage with the matching hook 9014. At this time, the rotating disk 9005 cannot continue to rotate. When the rotating disk 9005 cannot rotate, the second steel wire rope 9003 will also stop. The suddenly stopped second steel wire rope 9003 will pull the fixed sleeve 9007 upward. When the fixed sleeve 9007 is subjected to an upward pulling force, it can drive the second brake pad 9010 to rise, thereby realizing the stopping of the body 1 and avoiding the body 1 from falling or rising and colliding with the top plate 4.

[0056] Reference Figure 5 , Figure 7 A guide groove 6017 is provided inside the iron block 6009, and a guide column 6014 is fixedly connected to the inner wall of one side of the first shell 6001. A limit block is provided at one end of the guide column 6014 to prevent the iron block 6009 from sliding out from the end of the guide column 6014. One end of the guide column 6014 is located inside the guide groove 6017, ensuring that the iron block 6009 can stably perform horizontal movement.

[0057] Reference Figure 5-Figure 6The first brake pad 6012 is located inside the through groove 6002. The iron block 6009 includes an arc-shaped portion and a rectangular portion. The arc-shaped portion attracts the inductor 6006. The arc-shaped portion can increase the attraction area between the inductor 6006 to ensure that the attraction between the iron block 6009 and the inductor 6006 is more secure. A fixed cylinder 6010 is fixedly connected to the inner wall of one side of the first shell 6001. A first spring 6016 is fixedly connected to the inner wall of one side of the fixed cylinder 6010. One end of the first spring 6016 is fixedly connected to a movable rod 6015. One end of the movable rod 6015 away from the first spring 6016 is fixedly connected to the outer wall of one side of the iron block 6009.

[0058] Reference Figure 9-10 The transmission assembly 8 includes a tooth plate 8001 fixedly connected to the circumferential outer wall of the fixing frame 9012, the cross section of the tooth plate 8001 is Z-shaped, a tooth groove is provided on one side of the tooth plate 8001, the tooth plate 8001 is meshed with the gear 8005 through the tooth groove, the circumferential inner wall of the gear 8005 is fixedly connected to the first rotating column 8002, both ends of the first rotating column 8002 are fixedly connected to the first transmission wheel 8003, the circumferential outer wall of the first transmission wheel 8003 is transmission-connected to the transmission belt 8004, and the first transmission wheel 80 03 is connected to the second transmission wheel 8006 through the transmission belt 8004. During the rising process of the fixed frame 9012, the tooth plate 8001 can be driven to rise as a whole. Since one side of the tooth plate 8001 is meshed with the gear 8005, it can drive the first rotating column 8002 to rotate. During the rotation of the first rotating column 8002, the first transmission wheel 8003 can drive the transmission belt 8004 and the second transmission wheel 8006 to rotate, thereby providing a power source for the subsequent rotation of the screw rod 6004.

[0059] Reference Figure 5-Figure 7, the inner walls on both sides of the expansion shell 6003 are rotatably connected with threaded screws 6004, one end of the threaded screw 6004 is fixedly connected to the second transmission wheel 8006, the circumferential outer wall of the threaded screw 6004 is meshed with a threaded sleeve 6005, and the threaded sleeve 6005 is fixedly connected to the inductor 6006. When the second transmission wheel 8006 rotates, the threaded screw 6004 located inside the first shell 6001 can make a circular motion. At this time, the threaded sleeve 6005 meshed with the threaded screw 6004 can drive the inductor 6006 to move in a direction away from the iron block 6009. When the inductor 6006 gradually moves away from the iron block 6009, the magnetic field of the inductor 6006 on the iron block 6009 is increased. The suction force will also gradually decrease. At this time, the first spring 6016 in the stretched state will restore its deformation, allowing the electromagnetic brake assembly 6 to work to stop the car body 1, thereby speeding up the stopping efficiency of the car body 1 when it is overspeeding, and the first brake pad 6012 can achieve friction stopping of the car body 1 in the X-axis direction, and the second brake pad 9010 can achieve friction stopping of the car body 1 in the Z-axis direction. Through the mutual cooperation between the electromagnetic brake assembly 6 and the overspeed protection assembly 9, the stopping time of the car body 1 when it is overspeeding can be further shortened, and the stopping ability of the car body 1 is improved, so that the elevator can stop smoothly at a faster speed when descending or ascending, thereby achieving the purpose of efficient transportation of materials, etc. during mining operations.

[0060] Reference Figure 5-Figure 7 The inner walls on both sides of the other expansion shell 6003 are fixedly connected with guide rods 6007, and the circumferential outer wall of the guide rod 6007 is sleeved with a guide cylinder 6008. The guide cylinder 6008 is fixedly connected to the inductor coil 6006. The guide cylinder 6008 slides on the outer wall of the guide rod 6007, which can play a good limiting and guiding effect on the horizontal movement of the threaded sleeve 6005, thereby ensuring that the threaded sleeve 6005 can move stably.

[0061] The present invention also discloses an elevator, which adopts an electromagnetic braking and overspeed protection integrated elevator car, including a support platform 15 fixedly connected to the top outer wall of the top plate 4, the top outer wall of the support platform 15 is fixedly connected to a motor 16, the output end of the motor 16 is fixedly connected to a worm 11, the worm 11 is meshed with a worm wheel 12, the circumferential inner wall of the worm wheel 12 is fixedly connected to a rotating rod, the circumferential outer wall of the rotating rod is fixedly connected to a traction wheel 13, the circumferential outer wall of the traction wheel 13 is provided with a first steel wire rope 7, the top outer wall of the car body 1 is fixedly connected to a mounting frame 10, one end of the first steel wire rope 7 is fixedly connected to the mounting frame 10, the end of the first steel wire rope 7 away from the car body 1 is fixedly connected to a counterweight frame, one side of the first track 2 is fixedly connected to a mounting plate 3, and one end of the motor 16 is provided with a brake 14, which can realize the prompting and lowering of the car body 1.

[0062] Working principle: When in use, after the elevator lifts the car body 1 to the specified position, the brake 14 at the tail of the motor 16 can instantly lock the output shaft, thereby achieving a braking of the car body 1. At the same time, the inductor 6006 inside the first shell 6001 will also be instantly powered off. When the inductor 6006 is instantly powered off, the magnetic field around it will immediately disappear. At this time, the first spring 6016 in the fixed cylinder 6010, which is in a stretched state, will immediately restore its deformation, driving the movable rod 6015 to move toward the inside of the fixed cylinder 6010. When the movable rod 6015 moves, it can pull the iron block 6009 away from the inductor 6006. When the iron block 6009 gradually moves away from the inductor 6006, it will cause the first connecting rod The angle between 6013 and the fixed plate 6011 gradually increases, so that the fixed plate 6011 and the first brake pad 6012 can be quickly pushed out from the inside of the first shell 6001 until the two groups of first brake pads 6012 are pressed against the outer wall of the first track 2. At this time, the two groups of brake pads in the clamped state can have a secondary braking effect on the car body 1, thereby cooperating with the primary braking of the brake device 14 to improve the braking efficiency and speed of the car body 1, and avoid the car body 1 from rising or falling too far due to inertia during braking. When a fault occurs during the operation of the elevator and overspeed occurs, the rising or falling speed of the car body 1 will also increase. When the lifting speed of the car body 1 increases, the transmission speed of the second wire rope 9003 When the rotation speed of the first rotating wheel 9001 increases, the centrifugal force on the counterweight hook 9015 on one side of the rotating disk 9005 will also increase, so that the two sets of hooks 9015 move from the center of the rotating disk 9005 to both sides and engage with the matching hook 9014. At this time, the rotating disk 9005 cannot continue to rotate. When the rotating disk 9005 cannot rotate, the second steel wire rope 9003 will also stop. The suddenly stopped second steel wire rope 9003 will pull the fixed sleeve 9007 upward. When the fixed sleeve 9007 is subjected to the upward pulling force, it can drive the second brake pad 9010 to rise. The cross-section of the second brake pad 9010 is a right-angle trapezoid, so that When the two sets of second brake pads 9010 rise, they can clamp the two sides of the second track 17, so as to stop the car body 1 and prevent the car body 1 from falling or rising and colliding with the top plate 4, so that the car body 1 has the function of overspeed protection. When the fixed frame 9012 rises, the tooth plate 8001 can be driven to rise as a whole. Since one side of the tooth plate 8001 is meshed with the gear 8005, the first rotating column 8002 can be driven to rotate. During the rotation of the first rotating column 8002, the first transmission wheel 8003 can drive the transmission belt 8004 and the second transmission wheel 8006 to rotate. When the second transmission wheel 8006 rotates, the threaded screw 6004 located inside the first shell 6001 can make a circular motion.At this time, the threaded sleeve 6005 meshing with the threaded screw 6004 can drive the inductor 6006 to move away from the iron block 6009. When the inductor 6006 gradually moves away from the iron block 6009, the magnetic attraction of the inductor 6006 to the iron block 6009 will gradually decrease. At this time, the first spring 6016 in the stretched state will restore its deformation, so that the electromagnetic brake assembly 6 can work to stop the car body 1, thereby accelerating the stopping efficiency of the car body 1 when it is overspeeding, and the first brake pad 6012 can achieve friction stopping of the car body 1 in the X-axis direction, and the second brake pad 9010 can achieve friction stopping of the car body 1 in the Z-axis direction. Through the mutual cooperation between the electromagnetic brake assembly 6 and the overspeed protection assembly 9, the stopping time of the car body 1 when it is overspeeding can be further shortened, and the stopping ability of the car body 1 is improved, so that the elevator can stop smoothly at a faster speed when descending or ascending, thereby achieving the purpose of efficient transportation of materials during mining operations.

[0063] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. An electromagnetic brake and overspeed protection integrated car, comprising a car body (1), characterized in that: The carriage (1) is arranged in the middle of the two sets of first rails (2), and further comprises: An electromagnetic brake assembly (6) for braking the compartment (1), the electromagnetic brake assembly (6) being arranged on both sides of the compartment (1), the electromagnetic brake assembly (6) comprising a first shell (6001) fixedly connected to the outer walls on both sides of the compartment (1), the outer walls on both sides of the first shell (6001) being fixedly connected to an expansion shell (6003), the expansion shell (6003) being connected to the first shell (6001), the end of the first shell (6001) being concave, and the first shell (6001) having a concave end. Through grooves (6002) are provided on both sides of the outer walls of the end of a shell (6001), an inductor (6006) and an iron block (6009) are arranged inside the first shell (6001), the upper and lower sides of the rectangular portion are rotatably connected to the first connecting rod (6013), the end of the first connecting rod (6013) away from the rectangular portion is rotatably connected to a fixed plate (6011), the outer wall of one side of the fixed plate (6011) is fixedly connected to a first brake pad (6012), and an elastic component is arranged on one side of the rectangular portion; An overspeed protection component (9) for limiting the speed of the vehicle body (1); A transmission assembly (8) is used to provide a power source for the lateral movement of the inductor coil (6006).

2. The electromagnetic braking and overspeed protection integrated car according to claim 1, characterized in that: The overspeed protection component (9) comprises a locking component and a second shell (9009) arranged on the top of the top plate (4); the second shell (9009) is fixedly connected to the car body (1) via a cross bar; a movable groove (9011) is provided inside the second shell (9009); a second brake pad (9010) is provided inside the movable groove (9011); the cross section of the second brake pad (9010) is a right-angled trapezoid; the second brake pad (9010) is located on one side of the second track (17); a fixing frame (9012) is fixedly connected to the top of the second brake pad (9010); a cross column (9008) is fixedly connected to one side of the fixing frame (9012); a fixing sleeve (9007) is fixedly connected to one end of the cross column (9008) away from the fixing frame (9012); and a pulling component fixedly connected to the fixing sleeve (9007) is provided on one side of the second track (17).

3. The electromagnetic braking and overspeed protection integrated car according to claim 2, characterized in that: The pulling assembly includes a second steel wire rope (9003) fixedly connected to the circumferential inner wall of the fixed sleeve (9007), the circumferential outer wall of the second steel wire rope (9003) is respectively transmission-connected to the first rotating wheel (9001) and the second rotating wheel (9006), the top outer wall of the top plate (4) is fixedly connected to the support plate (9004), the outer wall of one side of the support plate (9004) is rotationally connected to the second rotating column (9002), and the first rotating wheel (9001) is fixedly connected to the circumferential outer wall of the second rotating column (9002).

4. The electromagnetic braking and overspeed protection integrated car according to claim 3, characterized in that: The locking assembly comprises a rotating disk (9005) fixedly connected to the circumferential outer wall of the second rotating column (9002); a locking ring plate (9013) is fixedly connected to the top outer wall of the top plate (4); the circumferential inner wall of the locking ring plate (9013) is fixedly connected to matching hooks (9014) distributed in a circle at equal distances; a hook (9015) is rotatably connected to the outer wall of one side of the rotating disk (9005); one end of a group of the hooks (9015) is rotatably connected to a second connecting rod (9016); the other end of the second connecting rod (9016) is rotatably connected to another hook (9015); a telescopic rod (9017) is rotatably connected to the outer wall of one side of the rotating disk (9005); a second spring (9018) is sleeved on the circumferential outer wall of the telescopic rod (9017); and one end of the telescopic rod (9017) is rotatably connected to a group of the hooks (9015).

5. The electromagnetic braking and overspeed protection integrated car according to claim 4, characterized in that: A guide groove (6017) is provided inside the iron block (6009), and a guide column (6014) is fixedly connected to an inner wall of one side of the first shell (6001), and one end of the guide column (6014) is located inside the guide groove (6017).

6. The electromagnetic braking and overspeed protection integrated car according to claim 5, characterized in that: The first brake pad (6012) is located inside the through groove (6002), the iron block (6009) includes an arc portion and a rectangular portion, the arc portion is attracted to the inductor (6006), a fixed cylinder (6010) is fixedly connected to an inner wall of one side of the first shell (6001), a first spring (6016) is fixedly connected to an inner wall of one side of the fixed cylinder (6010), one end of the first spring (6016) is fixedly connected to a movable rod (6015), and one end of the movable rod (6015) away from the first spring (6016) is fixedly connected to an outer wall of one side of the iron block (6009).

7. The electromagnetic brake and overspeed protection integrated car according to claim 6, characterized in that: The transmission assembly (8) comprises a tooth plate (8001) fixedly connected to the circumferential outer wall of the fixed frame (9012); the cross section of the tooth plate (8001) is Z-shaped; a tooth groove is provided on one side of the tooth plate (8001); the tooth plate (8001) meshes with the gear (8005) through the tooth groove; a first rotating column (8002) is fixedly connected to the circumferential inner wall of the gear (8005); both ends of the first rotating column (8002) are fixedly connected to a first transmission wheel (8003); the circumferential outer wall of the first transmission wheel (8003) is transmission-connected to a transmission belt (8004); the first transmission wheel (8003) is transmission-connected to a second transmission wheel (8006) through the transmission belt (8004).

8. The electromagnetic braking and overspeed protection integrated car according to claim 7, characterized in that: The inner walls on both sides of the expansion shell (6003) are rotatably connected to a threaded screw (6004), one end of the threaded screw (6004) is fixedly connected to the second transmission wheel (8006), the circumferential outer wall of the threaded screw (6004) is meshed with a threaded sleeve (6005), and the threaded sleeve (6005) is fixedly connected to the inductor (6006).

9. The electromagnetic braking and overspeed protection integrated car according to claim 8, characterized in that: The inner walls on both sides of the other expansion shell (6003) are fixedly connected with guide rods (6007), the circumferential outer wall of the guide rods (6007) is sleeved with a guide cylinder (6008), and the guide cylinder (6008) is fixedly connected to the inductor coil (6006).

10. An elevator, using an electromagnetic brake and overspeed protection integrated car according to any one of claims 1 to 9, characterized in that: The invention comprises a support platform (15) fixedly connected to the top outer wall of the top plate (4), the top outer wall of the support platform (15) is fixedly connected to a motor (16), the output end of the motor (16) is fixedly connected to a worm (11), the worm (11) is meshed with a worm wheel (12), the circumferential inner wall of the worm wheel (12) is fixedly connected to a rotating rod, the circumferential outer wall of the rotating rod is fixedly connected to a traction wheel (13), the circumferential outer wall of the traction wheel (13) is provided with a first steel wire rope (7), the top outer wall of the car body (1) is fixedly connected to a mounting frame (10), one end of the first steel wire rope (7) is fixedly connected to the mounting frame (10), one end of the first steel wire rope (7) away from the car body (1) is fixedly connected to a counterweight frame, one side of the first track (2) is fixedly connected to a mounting plate (3), and one end of the motor (16) is provided with a brake (14).

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