Belt machine electro-hydraulic pushing band-type brake locking device

Abstract

The invention belongs to the technical field of belt conveyor electro-hydraulic push band-type brake locking, and particularly relates to a belt conveyor electro-hydraulic push band-type brake locking device which comprises a band-type brake device, a stop piece used for enabling a belt conveyor rotating shaft to stop rotating rapidly is arranged in the band-type brake device, and an electro-hydraulic push rod device is arranged on one side of the band-type brake device. A piston rod used for preventing a stopping piece in the band-type brake device from stopping a rotating shaft of the belt conveyor is arranged in the electric-hydraulic push rod device. By starting the electric-hydraulic push rod device, the piston rod on the electric-hydraulic push rod device drives the first displacement block to synchronously move upwards, the counter weight descends and is attracted by the electrified degaussing electromagnet, at the moment, the electric-hydraulic push rod device is closed, and the piston rod keeps still when the counter weight is attracted and fixed by the electrified degaussing electromagnet; the problem that in the prior art, an electro-hydraulic push rod device needs to operate for a long time to enable the piston rod on the electro-hydraulic push rod device to keep the same displacement length is solved, the service life of the electro-hydraulic push rod device is prolonged, meanwhile, electricity consumption is reduced, and then cost is reduced.

Description

Technical Field

[0001] The invention belongs to the technical field of belt conveyor electro-hydraulic driven brake locking, in particular to a belt conveyor electro-hydraulic driven brake locking device. Background Art

[0002] The belt conveyor electro-hydraulic brake locking device is a braking device, which is used to quickly stop the rotating shaft on the belt conveyor when the belt conveyor stops, so that the rotating shaft no longer rotates.

[0003] The existing belt conveyor electro-hydraulic push brake locking device consists of an electro-hydraulic push rod device and a brake device. Before the belt conveyor is started, the stop piece on the brake device is first fitted with the belt conveyor shaft to make them tightly contact. Then the electro-hydraulic push rod device is started, and the piston rod thereon is extended to drive the stop piece on the brake device no longer to contact with the belt conveyor shaft. At this time, the belt conveyor is started and the shaft thereon operates normally; when the belt conveyor stops, the electro-hydraulic push rod device is closed, and the piston rod thereon is reset to drive the stop piece on the brake device to reset. At this time, the stop piece fits and rubs against the belt conveyor shaft, so that the belt conveyor shaft stops rotating under the action of friction and is clamped by the stop piece.

[0004] The existing belt conveyor electro-hydraulic push brake locking device still has some problems in actual use. During the operation of the belt conveyor, the electro-hydraulic push rod device needs to be powered continuously to keep the piston rod thereon at the same extension length, so as to ensure that the stop piece on the brake device does not conflict with the belt conveyor shaft and the belt conveyor operates normally. However, the piston rod maintains the same extension length for a long time, causing the electro-hydraulic push rod device to be in long-term high-load operation, resulting in a shortened service life of the electro-hydraulic push rod device. At the same time, long-term high-load operation causes the extension length of the piston rod in the electro-hydraulic push rod device to gradually decrease, causing the stop piece on the brake device to contact the belt conveyor shaft. The friction of the rotating shaft reduces the transmission efficiency of the belt conveyor. In more serious cases, it causes the brake to lock automatically, preventing the belt conveyor from operating normally. In addition, during use, the added limit assembly will cause the counterweight on it to swing when it descends. During the swinging process, one side of the counterweight will be close to the energized demagnetizing electromagnet below it, and one side of the counterweight will be adsorbed together with the energized demagnetizing electromagnet, causing the piston rod of the electro-hydraulic push rod device to shift when the power is off, further causing the stop plate on the brake device to abut against the rotating shaft on the belt conveyor, thereby aggravating the wear of the rotating shaft and possibly causing damage to the belt conveyor.

[0005] To this end, the present invention provides a belt conveyor electro-hydraulic driven brake locking device. Summary of the invention

[0006] In order to make up for the deficiencies of the prior art, at least one technical problem raised in the background technology is solved.

[0007] The technical solution adopted by the present invention to solve the technical problem is as follows: the electro-hydraulic driven brake locking device of a belt conveyor described in the present invention comprises a brake device, wherein the brake device comprises a stop plate for quickly stopping the rotation of a belt conveyor shaft, and an electro-hydraulic push rod device is arranged on one side of the brake device, wherein the electro-hydraulic push rod device comprises a piston rod for preventing the stop plate in the brake device from stopping the belt conveyor shaft;

[0008] A limit assembly is provided on one side of the electro-hydraulic push rod device, and the limit assembly is used to keep the piston rod in the same position;

[0009] The limiting assembly is provided with a centering assembly, and the centering assembly is used to further stabilize the limiting of the piston rod.

[0010] Preferably, the limiting assembly includes a fixed bracket, a fixed column is fixedly connected to the top surface of the fixed bracket, a fixed sleeve 1 is fixedly connected to the middle part of the top surface of the fixed bracket, a rotating wheel 1 is rotatably connected in the fixed sleeve 1, the fixed sleeve 1 and the rotating wheel 1 form a fixed pulley, one end of the fixed column is fixedly connected to a displacement rope, the displacement rope passes through the rotating wheel 1, a fixed sleeve 2 is provided on the brake device, a rotating wheel 2 is rotatably connected in the fixed sleeve 2, the fixed sleeve 2 and the rotating wheel 2 form a movable pulley, the movable pulley is located on the displacement rope between the fixed bracket and the fixed pulley, a hanging rope 1 is fixedly connected to the bottom end of the fixed sleeve 2, a displacement block 1 is fixedly connected to the output end of the piston rod in the electro-hydraulic push rod device, the bottom of the hanging rope 1 passes through the displacement block 1 and is sleeved with the displacement block, the other end of the displacement rope is fixedly connected to the hanging rope 2, a counterweight is provided in the brake device, the counterweight is made of iron material, a displacement block 2 is fixedly connected to the middle part of the top of the counterweight, the bottom of the hanging rope 2 passes through the displacement block 2 and is sleeved with the displacement block 2.

[0011] Preferably, the electro-hydraulic push rod device is located in a fixed bracket, and the piston rod in the electro-hydraulic push rod device is located between the fixed pulley and the fixed column and in the same vertical plane.

[0012] Preferably, the limiting assembly also includes a threaded groove, which is opened at the bottom of the brake device, a threaded rod is threadedly connected to the threaded groove, a gasket is fixedly connected to the top of the threaded rod, an energized demagnetizing electromagnet is fixedly connected to the top of the gasket, an interface protective shell is fixedly connected to the outer surface of the energized demagnetizing electromagnet, and an electric wire is fixedly connected to one side of the interface protective shell.

[0013] Preferably, the shape of the gasket matches the shape of the energized degaussing electromagnet, and the counterweight and the energized degaussing electromagnet are located on the same vertical axis.

[0014] Preferably, the centering component includes a base, the base is fixedly connected to the bottom of the fixed bracket, a rotating groove is opened on the top of the base, a sliding groove is opened on the top of the base, the rotating groove is connected to the sliding groove, and a rack is slidably connected inside the sliding groove.

[0015] Preferably, the base is located on the movement track of the counterweight.

[0016] Preferably, one side of the rack fits with an inner wall of one side of the fixing bracket.

[0017] Preferably, the centering component also includes a rotating rod, which is rotatably connected in the sliding groove, the top surface of the rotating rod is fixedly connected with a rotating gear, the rotating rod is meshed with a rack, the bottom surface of the rotating rod is fixedly connected with a belt ring, the inner surface of the belt ring is transmission-connected with a transmission belt, the bottom of the base is fixedly connected with a motor, and the output end of the motor is fixed to the bottom end of the rotating rod.

[0018] Preferably, the base is located on the movement track of the energized degaussing electromagnet, and the energized degaussing electromagnet is located inside the quadrilateral formed by the transmission belt.

[0019] The beneficial effects of the present invention are as follows:

[0020] 1. The present invention ensures that the piston rod on the electro-hydraulic push rod device maintains a stable extension height during the operation of the belt conveyor through the cooperation of the limit assembly and the centering assembly, thereby preventing the belt conveyor from having a reduced transmission efficiency due to the instability of the piston rod extension height, which further leads to the problem of stopping operation, and ensures the stability of the belt conveyor electro-hydraulic push brake locking device during the operation of the belt conveyor.

[0021] 2. The present invention starts the electro-hydraulic push rod device so that the piston rod on the electro-hydraulic push rod device drives the displacement block to move upward synchronously, so that the counterweight object descends and is adsorbed by the energized demagnetizing electromagnet. At this time, the electro-hydraulic push rod device is turned off, and the piston rod remains stationary when the counterweight object is adsorbed and fixed by the energized demagnetizing electromagnet, thereby limiting the piston rod. This avoids the problem in the prior art that the electro-hydraulic push rod device needs to run for a long time to keep the piston rod thereon at the same displacement length. While extending the service life of the electro-hydraulic push rod device, it also reduces power consumption and thus reduces costs.

[0022] 3. The present invention uses the synchronous displacement of four racks to center the counterweight and prevent it from shaking during the descent process. One side of the counterweight is adsorbed by the energized demagnetizing electromagnet, resulting in the displacement of the piston rod on the electro-hydraulic push rod device after it is closed, causing the stop plate on the brake device to conflict with the belt conveyor shaft and generate friction, thereby ensuring the service life of the belt conveyor shaft. At the same time, it also avoids the problem that after the energized demagnetizing electromagnet is energized and demagnetized, the counterweight moves upward and swings under the action of inertia, thereby colliding with nearby equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The present invention will be further described below in conjunction with the accompanying drawings.

[0024] Figure 1 It is a schematic elevation diagram of the overall device of the present invention;

[0025] Figure 2 It is a right side schematic diagram of the overall device of the present invention;

[0026] Figure 3 This is a schematic diagram of the positional relationship between the base and the rack of the present invention;

[0027] Figure 4 This is a schematic diagram of the positional relationship between the counterweight and the energized demagnetizing electromagnet of the present invention;

[0028] Figure 5 For the present invention Figure 4 The enlarged schematic diagram at A in the middle;

[0029] Figure 6 It is a schematic diagram of the positional relationship between the gasket and the energized demagnetizing electromagnet of the present invention;

[0030] Figure 7 It is a partial structural schematic diagram of the centering component of the present invention;

[0031] Figure 8 This is a schematic diagram of the positional relationship between the belt loop and the transmission belt of the present invention;

[0032] Fig. 9 This is a schematic diagram of the positional relationship between the rack and the rotating gear of the present invention;

[0033] Fig.10 It is a schematic diagram of the position relationship between the rotating rod and the rotating gear of the present invention.

[0034] Reference numerals: 1, brake device; 11, electro-hydraulic push rod device;

[0035] 21. Fixed bracket; 22. Fixed column; 23. Fixed sleeve 1; 24. Rotary wheel 1; 25. Displacement rope; 26. Fixed sleeve 2; 27. Rotary wheel 2; 28. Hanging rope 1; 29. ​​Displacement block 1; 210. Hanging rope 2; 211. Displacement block 2; 212. Counterweight; 213. Threaded groove; 214. Threaded rod; 215. Gasket; 216. Power-on demagnetizing electromagnet; 217. Interface protective shell; 218. Wire;

[0036] 31. Base; 32. Rotating groove; 33. Sliding groove; 34. Rack; 35. Rotating rod; 36. Rotating gear; 37. Belt ring; 38. Transmission belt; 39. Motor. DETAILED DESCRIPTION

[0037] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further explained below in conjunction with specific implementation methods.

[0038] Embodiment 1

[0039] like Figures 1 to 10 As shown, a belt conveyor electro-hydraulic brake locking device according to an embodiment of the present invention comprises a brake device 1, wherein the brake device 1 comprises a stop plate for quickly stopping the rotation of the belt conveyor shaft, and an electro-hydraulic push rod device 11 is arranged on one side of the brake device 1, wherein the electro-hydraulic push rod device 11 comprises a piston rod for preventing the stop plate in the brake device 1 from stopping the belt conveyor shaft;

[0040] A limit assembly is provided on one side of the electro-hydraulic push rod device 11, and the limit assembly is used to keep the piston rod in the same position;

[0041] The limiting assembly is provided with a centering assembly, and the centering assembly is used to further stabilize the limiting of the piston rod.

[0042] Specifically, the existing belt conveyor electro-hydraulic push brake locking device still has some problems in actual use. During the operation of the belt conveyor, the electro-hydraulic push rod device 11 needs to be powered continuously to keep the piston rod thereon at the same extension length, so as to ensure that the stop piece on the brake device 1 does not conflict with the belt conveyor shaft and the belt conveyor operates normally. However, the piston rod maintains the same extension length for a long time, causing the electro-hydraulic push rod device 11 to be in long-term high-load operation, resulting in a shortened service life of the electro-hydraulic push rod device 11. At the same time, long-term high-load operation causes the extension length of the piston rod in the electro-hydraulic push rod device 11 to be reduced, causing the stop piece on the brake device 1 to contact the belt conveyor shaft. The friction of the rotating shaft on the machine reduces the transmission efficiency of the belt conveyor. In more serious cases, it causes the brake to automatically lock, resulting in the belt conveyor being unable to operate normally. In addition, during use, the added limit assembly will cause the counterweight 212 on it to swing when it descends. During the swinging process, one side of the counterweight 212 is close to the energized demagnetizing electromagnet 216 below it, and one side of the counterweight 212 will be adsorbed together with the energized demagnetizing electromagnet 216, causing the piston rod of the electro-hydraulic push rod device 11 to shift when the power is off, resulting in the friction of the stop plate on the brake device 1 with the rotating shaft on the belt conveyor, thereby reducing the transmission efficiency of the belt conveyor.

[0043] Therefore, the present invention solves this problem by setting a corresponding structure. Before the belt conveyor is started, the stop plate on the brake device 1 is first fitted with the belt conveyor shaft to make them tightly contact, and then the electro-hydraulic push rod device 11 is started, and the extension of the piston rod thereon drives the stop plate on the brake device 1 to no longer contact the belt conveyor shaft, and then the piston rod is limited by the limiting component, and after the centering component is used to keep the extended height, the electro-hydraulic push rod device 11 is closed, and the belt conveyor is started at this time, and the shaft thereon operates normally; when the belt conveyor stops, the piston rod is reset by the limiting component, driving the stop plate on the brake device 1 to reset, and at this time the stop plate fits and rubs against the belt conveyor shaft, so that the belt conveyor shaft stops rotating under the action of friction and is clamped by the stop plate.

[0044] The present invention ensures that the piston rod on the electro-hydraulic push rod device 11 maintains a stable extension height during the operation of the belt conveyor through the cooperation of the limit assembly and the centering assembly, thereby preventing the belt conveyor from having a reduced transmission efficiency due to the instability of the piston rod extension height, which further leads to the problem of stopping operation, and ensuring the stability of the belt conveyor electro-hydraulic push brake locking device during the operation of the belt conveyor.

[0045] like Figure 1 and Figure 2As shown, the limiting assembly of this embodiment includes a fixed bracket 21, a fixed column 22 is fixedly connected to the top surface of the fixed bracket 21, a fixed sleeve 23 is fixedly connected to the middle of the top surface of the fixed bracket 21, a rotating wheel 24 is rotatably connected in the fixed sleeve 23, and the fixed sleeve 23 and the rotating wheel 24 form a fixed pulley, a displacement rope 25 is fixedly connected to one end of the fixed column 22, and the displacement rope 25 passes through the rotating wheel 24, a fixed sleeve 26 is provided on the brake device 1, a rotating wheel 27 is rotatably connected in the fixed sleeve 26, and the fixed sleeve 26 and the rotating wheel 27 form a movable pulley, and the movable pulley The wheel is located on the displacement rope 25 between the fixed bracket 21 and the fixed pulley, the bottom end of the fixed sleeve 26 is fixedly connected to the hanging rope 28, the output end of the piston rod in the electro-hydraulic push rod device 11 is fixedly connected to the displacement block 29, the bottom of the hanging rope 28 passes through the displacement block 29 and is sleeved with the displacement block 29, the other end of the displacement rope 25 is fixedly connected to the hanging rope 210, a counterweight 212 is provided in the brake device 1, the counterweight 212 is made of iron material, the middle part of the top of the counterweight 212 is fixedly connected to the displacement block 211, the bottom of the hanging rope 210 passes through the displacement block 211 and is sleeved with the displacement block 211.

[0046] Specifically, before the belt conveyor is operated, the piston rod output end of the electro-hydraulic push rod device 11 is located at the top of the electro-hydraulic push rod device 11. When the belt conveyor is ready to be started, the piston rod on the electro-hydraulic push rod device 11 is displaced upward by operating the electro-hydraulic push rod device 11, thereby driving the displacement block 1 29 to move upward synchronously. Under the combined action of the weight of the counterweight 212 and the fixed pulley and the movable pulley, the displacement block 1 29 moves upward, and the length of the displacement rope 25 between the fixed pulley and the fixed column 22 is shortened, so that the length of the displacement rope 25 at the end where the counterweight 212 is located increases, so that the displacement block 2 211 moves downward;

[0047] When the electro-hydraulic push rod device 11 is closed, the piston rod on the electro-hydraulic push rod device 11 is reset, and the counterweight 212 is moved upward through the above operation. When the piston rod is reset, the stop plate on the brake device 1 contacts and rubs against the belt conveyor shaft, causing the belt conveyor to stop running.

[0048] like Figure 1 and Figure 2 As shown, the electro-hydraulic push rod device 11 of this embodiment is located in the fixed bracket 21, and the piston rod in the electro-hydraulic push rod device 11 is located between the fixed pulley and the fixed column 22 and in the same vertical plane.

[0049] Specifically, the function of the arrangement here is to ensure that the movable pulley can pull the displacement block 29 so that the piston rod is limited after the electro-hydraulic push rod device 11 is closed.

[0050] like Figures 1 to 6As shown, the limit assembly described in this embodiment also includes a thread groove 213, and the thread groove 213 is opened at the bottom of the brake device 1. The thread groove 213 is threadedly connected to a threaded rod 214, and a gasket 215 is fixedly connected to the top of the threaded rod 214. The top of the gasket 215 is fixedly connected to an energized demagnetization electromagnet 216. The shape of the gasket 215 in this embodiment matches the shape of the energized demagnetization electromagnet 216. The counterweight 212 and the energized demagnetization electromagnet 216 are on the same vertical axis. The outer surface of the energized demagnetization electromagnet 216 is fixedly connected to an interface protection shell 217, and one side of the interface protection shell 217 is fixedly connected to an electric wire 218.

[0051] Specifically, the powered degaussing electromagnet 216 is magnetic when not powered. Since the counterweight 212 and the powered degaussing electromagnet 216 are on the same vertical axis, when the counterweight 212 descends, the counterweight 212 gradually moves toward the direction close to the powered degaussing electromagnet 216 until the counterweight 212 contacts the powered degaussing electromagnet 216.

[0052] When the electro-hydraulic push rod device 11 is closed, the counterweight 212 moves upward, and the counterweight 212 is attracted by the energized demagnetizing electromagnet 216, so that the counterweight 212 is stationary.

[0053] When the demagnetizing electromagnet 216 is energized through the wire 218, the demagnetizing electromagnet 216 is demagnetized, and the demagnetizing electromagnet 216 no longer attracts and fixes the counterweight 212, so that after the electro-hydraulic push rod device 11 is closed, the counterweight 212 moves upward;

[0054] By rotating the energized demagnetizing electromagnet 216, the threaded rod 214 is driven to rotate together, thereby adjusting the height of the energized demagnetizing electromagnet 216. By changing the height of the energized demagnetizing electromagnet 216, the distance between the counterweight 212 and the energized demagnetizing electromagnet 216 is changed, thereby achieving the effect of adjusting the distance between the stop plate on the brake device 1 and the belt conveyor shaft.

[0055] The present invention starts the electro-hydraulic push rod device 11 so that the piston rod on the electro-hydraulic push rod device 11 drives the displacement block 29 to move upward synchronously, so that the counterweight 212 descends and is adsorbed by the energized demagnetizing electromagnet 216. At this time, the electro-hydraulic push rod device 11 is turned off, and the piston rod remains stationary when the counterweight 212 is adsorbed and fixed by the energized demagnetizing electromagnet 216, thereby limiting the piston rod. This avoids the problem in the prior art that the electro-hydraulic push rod device 11 needs to run for a long time to keep the piston rod thereon at the same displacement length. This prolongs the service life of the electro-hydraulic push rod device 11 while reducing power consumption and thereby reducing costs.

[0056] Embodiment 2

[0057] like Figures 2 to 10 As shown, compared with Example 1, another implementation of the present invention is:

[0058] like Figures 2 to 10 As shown, the centering component described in this embodiment includes a base 31, and the base 31 is fixedly connected to the bottom of the fixed bracket 21. The base 31 is located on the movement trajectory of the counterweight 212. A rotating groove 32 is opened on the top of the base 31, and a sliding groove 33 is opened on the top of the base 31. The rotating groove 32 is connected to the sliding groove 33, and a rack 34 is slidably connected inside the sliding groove 33, and one side of the rack 34 is in contact with the inner wall of one side of the fixed bracket 21.

[0059] Specifically, when the counterweight 212 is located at the farthest position from the energized demagnetizing electromagnet 216, the top of the counterweight 212 and the top of the rack 34 are in the same horizontal plane, and there are four racks 34 on the base 31 arranged in a circular array, and all structures on the centering assembly do not contact the counterweight 212 located in the middle thereof;

[0060] Because the base 31 is located on the movement trajectory of the counterweight 212, it slides toward the middle of the base 31 through the rack 34 until it stops sliding when it contacts the displaced counterweight 212, preventing the counterweight 212 from shaking during the displacement process. At the same time, the counterweight 212 is also centered so that the axis of the counterweight 212 is on the same vertical line when it is adsorbed by the energized demagnetizing electromagnet 216.

[0061] like Figures 2 to 10 As shown, the centering assembly described in this embodiment also includes a rotating rod 35, which is rotatably connected in the sliding groove 33, and the top surface of the rotating rod 35 is fixedly connected with a rotating gear 36, and the rotating rod 35 is meshed with a rack 34, and the bottom surface of the rotating rod 35 is fixedly connected with a belt ring 37, and the inner surface of the belt ring 37 is transmission-connected with a transmission belt 38, and the bottom of the base 31 is fixedly connected with a motor 39, and the output end of the motor 39 is fixed to the bottom end of the rotating rod 35.

[0062] Specifically, there are four rotating rods 35, rotating gears 36 and belt rings 37 and they are arranged in a circular array. The transmission belt 38 is transmitted on the four belt rings 37. A motor 39 is externally connected to one rotating rod 35. By starting the motor 39, the output shaft on the motor drives the rotating rod 35 fixed thereto to rotate, and then the rotating gear 36 drives the rack 34 to move while the remaining rotating rods 35 are rotated through the transmission of the transmission belt 38, so that the rack 34 moves synchronously.

[0063] The present invention achieves centering resistance against the counterweight 212 by synchronously displacing the four racks 34, thereby preventing the counterweight 212 from shaking during the descent process, causing one side of the counterweight 212 to adsorb against the energized demagnetizing electromagnet 216, resulting in the displacement of the piston rod thereon after the electro-hydraulic push rod device 11 is closed, causing the stop plate on the brake device 1 to conflict with the belt conveyor shaft and generate friction, thereby ensuring the service life of the belt conveyor shaft, and also avoiding the problem that after the energized demagnetizing electromagnet 216 is energized and demagnetized, the counterweight 212 moves upward and swings under the action of inertia, thereby colliding with nearby equipment.

[0064] like Figure 3 , Figure 4 and Figure 8 As shown, the base 31 of this embodiment is located on the movement track of the energized degaussing electromagnet 216 , and the energized degaussing electromagnet 216 is located inside the quadrilateral formed by the transmission belt 38 .

[0065] Specifically, the purpose of this arrangement is to ensure that the centering component will not block the energized degaussing electromagnet 216 when adjusting the height of the energized degaussing electromagnet 216 .

[0066] Working principle:

[0067] Before the belt conveyor is started, the stop plate on the brake device 1 is first fitted to the belt conveyor shaft to make them tightly contact, and then the electro-hydraulic push rod device 11 is started to extend the piston rod thereon so that the stop plate on the brake device 1 no longer contacts the belt conveyor shaft.

[0068] At this time, the piston rod output end on the electro-hydraulic push rod device 11 is located at the top of the electro-hydraulic push rod device 11. When the belt conveyor is ready to be started, the piston rod on it is displaced upward by running the electro-hydraulic push rod device 11, thereby driving the displacement block 1 29 to move upward synchronously. Under the combined effect of the weight of the counterweight 212 and the fixed pulley and the movable pulley, the displacement block 1 29 moves upward, and the length of the displacement rope 25 between the fixed pulley and the fixed column 22 is shortened, so that the length of the displacement rope 25 at the end where the counterweight 212 is located is increased, so that the displacement block 2 211 moves downward, so that the counterweight 212 gradually moves toward the direction close to the energized demagnetizing electromagnet 216 until the counterweight 212 contacts the energized demagnetizing electromagnet 216;

[0069] During this process, the motor 39 is started so that its output shaft drives the rotating rod 35 fixed thereto to rotate, and then the rack 34 is displaced by the rotating gear 36. At the same time, the remaining rotating rods 35 are rotated by the transmission belt 38 to cause the rack 34 to displace synchronously until it stops sliding when it contacts the displaced counterweight 212, thereby preventing the counterweight 212 from shaking during the displacement process. At the same time, the counterweight 212 is also centered so that the axis of the counterweight 212 is on the same vertical line when it is adsorbed by the energized demagnetizing electromagnet 216.

[0070] At this time, the electro-hydraulic push rod device 11 is closed, and the piston rod on the electro-hydraulic push rod device 11 is ready to be reset. The demagnetizing electromagnet 216 is energized to attract the counterweight 212, so that the counterweight 212 is stationary, and the piston rod is kept stationary.

[0071] At this time, the belt conveyor is started and the rotating shaft on it operates normally;

[0072] When the conveyor belt stops, the demagnetizing electromagnet 216 is energized through the wire 218, and the demagnetizing electromagnet 216 is demagnetized. At this time, the demagnetizing electromagnet 216 no longer attracts and fixes the counterweight 212, and the piston rod on the electro-hydraulic push rod device 11 is reset. Through the above operation, the counterweight 212 is reset. At this time, due to the reset of the piston rod, the stop plate on the brake device 1 is attached to and rubbed against the belt conveyor shaft, so that the belt conveyor shaft stops rotating under the action of friction and is clamped by the stop plate;

[0073] By rotating the energized demagnetizing electromagnet 216, the threaded rod 214 is driven to rotate together, thereby adjusting the height of the energized demagnetizing electromagnet 216. By changing the height of the energized demagnetizing electromagnet 216, the distance between the counterweight 212 and the energized demagnetizing electromagnet 216 changes, thereby achieving the effect of adjusting the distance between the stop plate on the brake device 1 and the belt conveyor shaft.

[0074] The above shows and describes the basic principles, main features and advantages of the present invention. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A belt conveyor electro-hydraulic brake locking device, characterized in that: The invention comprises a brake device (1), wherein the brake device (1) comprises a stop plate for quickly stopping the rotation of a belt conveyor shaft, and an electro-hydraulic push rod device (11) is arranged on one side of the brake device (1), wherein the electro-hydraulic push rod device (11) comprises a piston rod for preventing the stop plate in the brake device (1) from stopping the belt conveyor shaft; A limit assembly is provided on one side of the electro-hydraulic push rod device (11), and the limit assembly is used to keep the piston rod in the same position; The limiting assembly is provided with a centering assembly, and the centering assembly is used to further stabilize the limiting of the piston rod.

2. The belt conveyor electro-hydraulic brake locking device according to claim 1, characterized in that: The limiting assembly comprises a fixed bracket (21), a fixed column (22) is fixedly connected to the top surface of the fixed bracket (21), a fixed sleeve (23) is fixedly connected to the middle of the top surface of the fixed bracket (21), a rotating wheel (24) is rotatably connected to the fixed sleeve (23), the fixed sleeve (23) and the rotating wheel (24) form a fixed pulley, one end of the fixed column (22) is fixedly connected to a displacement rope (25), the displacement rope (25) passes through the rotating wheel (24), a fixed sleeve (26) is provided on the brake device (1), a rotating wheel (27) is rotatably connected to the fixed sleeve (26), the fixed sleeve (26) and the rotating wheel (27) form a movable pulley, the movable pulley is located in the fixed bracket (21). On the displacement rope (25) between the fixed bracket (21) and the fixed pulley, the bottom end of the fixed sleeve (26) is fixedly connected to a hanging rope (28), the output end of the piston rod in the electro-hydraulic push rod device (11) is fixedly connected to a displacement block (29), the bottom of the hanging rope (28) passes through the displacement block (29) and is sleeved with the displacement block (29), the other end of the displacement rope (25) is fixedly connected to a hanging rope (210), a counterweight (212) is provided in the brake device (1), the counterweight (212) is made of iron material, the middle part of the top end of the counterweight (212) is fixedly connected to a displacement block (211), the bottom of the hanging rope (210) passes through the displacement block (211) and is sleeved with the displacement block (211).

3. The belt conveyor electro-hydraulic brake locking device according to claim 1, characterized in that: The electro-hydraulic push rod device (11) is located in a fixed bracket (21), and the piston rod in the electro-hydraulic push rod device (11) is located between a fixed pulley and a fixed column (22) and in the same vertical plane.

4. The belt conveyor electro-hydraulic brake locking device according to claim 2, characterized in that: The limit assembly also includes a threaded groove (213), the threaded groove (213) is provided at the bottom of the brake device (1), the threaded groove (213) is internally threadedly connected to a threaded rod (214), the top of the threaded rod (214) is fixedly connected to a gasket (215), the top of the gasket (215) is fixedly connected to an energized demagnetizing electromagnet (216), the outer surface of the energized demagnetizing electromagnet (216) is fixedly connected to an interface protection shell (217), and one side of the interface protection shell (217) is fixedly connected to an electric wire (218).

5. The belt conveyor electro-hydraulic brake locking device according to claim 4, characterized in that: The shape of the gasket (215) matches the shape of the energized demagnetizing electromagnet (216), and the counterweight (212) and the energized demagnetizing electromagnet (216) are located on the same vertical axis.

6. The belt conveyor electro-hydraulic brake locking device according to claim 1, characterized in that: The centering component comprises a base (31), the base (31) is fixedly connected to the bottom of the fixed bracket (21), a rotating groove (32) is provided at the top of the base (31), a sliding groove (33) is provided at the top of the base (31), the rotating groove (32) is connected to the sliding groove (33), and a rack (34) is slidably connected inside the sliding groove (33).

7. The belt conveyor electro-hydraulic brake locking device according to claim 6, characterized in that: The base (31) is located on the movement track of the counterweight (212).

8. The belt conveyor electro-hydraulic brake locking device according to claim 6, characterized in that: One side of the rack (34) is in contact with an inner wall of one side of the fixing bracket (21).

9. The belt conveyor electro-hydraulic brake locking device according to claim 6, characterized in that: The centering assembly also includes a rotating rod (35), the rotating rod (35) is rotatably connected in the sliding groove (33), the top surface of the rotating rod (35) is fixedly connected with a rotating gear (36), the rotating rod (35) is meshed with a rack (34), the bottom surface of the rotating rod (35) is fixedly connected with a belt ring (37), the inner surface of the belt ring (37) is transmission-connected with a transmission belt (38), the bottom of the base (31) is fixedly connected with a motor (39), and the output end of the motor (39) is fixed to the bottom end of the rotating rod (35).

10. The belt conveyor electro-hydraulic brake locking device according to claim 9, characterized in that: The base (31) is located on the movement track of the energized demagnetizing electromagnet (216), and the energized demagnetizing electromagnet (216) is located inside the quadrilateral formed by the transmission belt (38).

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