CN113979076B - Automatic air hammer vibration system for coal breakage monitoring based on PLC control technology - Google Patents
Automatic air hammer vibration system for coal breakage monitoring based on PLC control technology Download PDFInfo
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- CN113979076B CN113979076B CN202111090189.4A CN202111090189A CN113979076B CN 113979076 B CN113979076 B CN 113979076B CN 202111090189 A CN202111090189 A CN 202111090189A CN 113979076 B CN113979076 B CN 113979076B
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- 239000003245 coal Substances 0.000 title claims abstract description 144
- 238000012544 monitoring process Methods 0.000 title claims abstract description 19
- 238000005516 engineering process Methods 0.000 title claims abstract description 17
- 238000010009 beating Methods 0.000 claims abstract description 20
- 238000005303 weighing Methods 0.000 claims abstract description 13
- 230000000149 penetrating effect Effects 0.000 claims abstract description 8
- 229910000831 Steel Inorganic materials 0.000 claims description 6
- 239000010959 steel Substances 0.000 claims description 6
- 230000000903 blocking effect Effects 0.000 abstract description 6
- 238000007599 discharging Methods 0.000 description 6
- 230000005540 biological transmission Effects 0.000 description 3
- 238000006073 displacement reaction Methods 0.000 description 3
- 230000005856 abnormality Effects 0.000 description 2
- 239000003818 cinder Substances 0.000 description 2
- 230000008602 contraction Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000013519 translation Methods 0.000 description 2
- 230000002159 abnormal effect Effects 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000003139 buffering effect Effects 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000003116 impacting effect Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 229910052755 nonmetal Inorganic materials 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G47/00—Article or material-handling devices associated with conveyors; Methods employing such devices
- B65G47/02—Devices for feeding articles or materials to conveyors
- B65G47/16—Devices for feeding articles or materials to conveyors for feeding materials in bulk
- B65G47/18—Arrangements or applications of hoppers or chutes
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D88/00—Large containers
- B65D88/54—Large containers characterised by means facilitating filling or emptying
- B65D88/64—Large containers characterised by means facilitating filling or emptying preventing bridge formation
- B65D88/66—Large containers characterised by means facilitating filling or emptying preventing bridge formation using vibrating or knocking devices
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G43/00—Control devices, e.g. for safety, warning or fault-correcting
- B65G43/08—Control devices operated by article or material being fed, conveyed or discharged
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G2201/00—Indexing codes relating to handling devices, e.g. conveyors, characterised by the type of product or load being conveyed or handled
- B65G2201/04—Bulk
- B65G2201/045—Sand, soil and mineral ore
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chain Conveyers (AREA)
- Testing Of Devices, Machine Parts, Or Other Structures Thereof (AREA)
Abstract
The invention provides an automatic air hammer vibration beating system for monitoring broken coal based on a PLC control technology, which comprises a coal bucket main body, wherein a loosening device is arranged on a shell of the coal bucket main body in a penetrating way, an expansion joint is connected to the lower surface of the coal bucket main body through a flange, a vibration beating device is arranged outside the expansion joint, a plugboard door is fixed to the lower surface of the expansion joint, a impacted device is fixed to the upper surface of the plugboard door, and a coal feeder is fixed to the lower surface of the plugboard door; the inside of the coal feeder is sequentially provided with a weighing belt and a conveying belt from top to bottom, and the outer surface of the coal feeder is fixedly provided with a PLC (programmable logic controller); the loosening device comprises a plurality of power components arranged on the outer surface of the coal bucket body, a vibration lining plate connected with the execution end of the power components extending to the inside of the coal bucket body, and a plurality of infrared range finders penetrating through the shell of the coal bucket body. The invention monitors the coal blocking phenomenon in a plurality of modes, can determine the coal blocking position in the main body of the coal bucket, and shakes different elements of the coal bucket from different positions so as to improve the dredging efficiency.
Description
Technical Field
The invention mainly relates to the technical field of coal supply devices, in particular to an automatic air hammer vibration system for monitoring broken coal based on a PLC control technology.
Background
The coal hopper is a part of a coal conveying system of a power plant, is coal storage equipment in a coal yard or in front of mechanized coal conveying equipment, and is used for supplying coal to a boiler.
According to the suspension rapping type integrated coal bucket provided by the patent document with the application number of CN201220315940.6, the coal bucket comprises a hammering cylinder, a hammering head, a hammering support and a self-discharging coal bucket, wherein the self-discharging coal bucket is formed by alternately connecting a plurality of positive hyperbola type coal bucket sections and a plurality of inverted hyperbola type coal bucket sections, and the coal bucket sections are welded. The upper end of the self-discharging coal bucket is connected with a first nonmetal expansion joint, two sides of the upper end of the self-discharging coal bucket are respectively provided with a supporting and hanging shaft, the supporting and hanging shafts are connected with supporting and hanging frames, a hanging spring is arranged in each supporting and hanging frame, and the supporting and hanging shafts can move up and down in the supporting and hanging frames. The two sides of the self-discharging coal bucket are respectively connected with a hammering bracket, a hammering cylinder is fixed on the hammering bracket, and a hammering head is connected in front of a piston rod of the hammering cylinder. The coal bucket is simple, compact and reasonable in structure; the self-discharging coal bucket is not easy to be blocked, has good corrosion resistance and long service life; the beating device automatically dredges, and the working efficiency is high.
However, the coal supply system still has defects, for example, although the coal bucket is automatically dredged by the hammering device and is not easy to be blocked, the coal bucket is dredged only by the hammering device and cannot be dredged at fixed points to the blocked part, so that the dredging efficiency is affected.
Disclosure of Invention
The invention mainly provides an automatic air hammer vibration system for monitoring broken coal based on a PLC control technology, which is used for solving the technical problems in the background technology.
The technical scheme adopted for solving the technical problems is as follows:
the automatic air hammer vibration beating system for monitoring the coal breakage based on the PLC control technology comprises a coal bucket main body, wherein a loosening device is arranged on a shell of the coal bucket main body in a penetrating manner, an expansion joint is connected to the lower surface of the coal bucket main body through a flange, a vibration beating device is arranged outside the expansion joint, a plugboard door is fixed to the lower surface of the expansion joint, a beating device is fixed to the upper surface of the plugboard door, and a coal feeder is fixed to the lower surface of the plugboard door;
the inside of the coal feeder is sequentially provided with a weighing belt and a conveying belt from top to bottom, and the outer surface of the coal feeder is fixedly provided with a PLC controller;
the loosening device comprises a plurality of power components arranged on the outer surface of the coal bucket main body, a vibration lining plate connected with the execution end of the power components extending to the inside of the coal bucket main body, and a plurality of infrared distance measuring devices penetrating through the shell of the coal bucket main body, wherein the infrared distance measuring devices are connected with the PLC through wires;
the vibration beating device comprises a plurality of hinging seats fixed on the outer surface of the expansion joint and a swinging rod rotationally connected with the hinging seats through a rotating shaft, a beating hammer is fixed at the bottom end of the swinging rod, a connecting rod is rotationally connected with the top end of the swinging rod through the rotating shaft, and one end of the connecting rod, far away from the swinging rod, is connected with the execution end of the power assembly.
Further, the monitoring end of infrared range finder extends to the inside of coal scuttle main part, just is located between vibration welt and the coal scuttle main part inner wall, the top of infrared range finder is equipped with the guide bar, the guide bar alternates in on the casing of coal scuttle main part, through the slip of vibration welt on the guide bar surface to guide vibration welt to carry out rectilinear motion, block the coal cinder that falls through the guide bar, prevent that the coal cinder from destroying the infrared range finder.
Further, the power component comprises a supporting rod fixed on the outer surface of the coal bucket main body, and a cylinder fixed on one end of the supporting rod away from the coal bucket main body, wherein one end of the cylinder extends to the inside of the coal bucket main body, a hinge plate is fixed on the outer surface of the other end of the cylinder, the hinge plate is rotationally connected with the connecting rod through a rotating shaft, and a vibrating lining plate on the piston rod is pushed to shake through the expansion and contraction of the piston rod of the cylinder so as to dredge coal blocks in the coal bucket main body.
Further, the device is hit including being fixed in the support frame of picture peg door upper surface, through the bearing frame with the lead screw that the upper surface of support frame rotated and is connected, through the nut with the piece is hit to the connection of the surface of lead screw, the lower surface of piece is hit with the upper surface sliding connection of support frame, the piece is hit the nut of piece at the lead screw surface through its endotheca to turn the gyration motion of lead screw into self rectilinear motion, thereby drive and hit the piece and translate.
Further, the support frame is including being fixed in the backup pad of picture peg door upper surface, be fixed in four apex angle departments of backup pad upper surface spring, and with a plurality of the buffer board that the upper surface of spring is connected provides the buffering for the buffer board through the spring to drive the buffer board and return original working position repeatedly.
Further, the driven device further comprises a driving assembly connected with the driving end of the screw rod, the driving assembly comprises a first belt pulley sleeved on the outer surface of the screw rod, a motor fixed on the lower surface of the buffer plate and a second belt pulley fixed on the outer surface of an output shaft of the motor, the second belt pulley is connected with the first belt pulley through a belt, and the second belt pulley is connected with the first belt pulley on the outer surface of the screw rod through the belt, so that the screw rod is driven to rotate.
Further, the support frame further comprises a plurality of vibrating heads fixed on the lower surface of the buffer plate, a first through hole which is formed in the support plate shell and used for the expansion joint to penetrate through is formed in the buffer plate shell and a second through hole which is formed in the buffer plate shell and used for the expansion joint to penetrate through, and the buffer plate capable of repeatedly lifting penetrates through the first through hole through the vibrating heads to extend into the second through hole to be in contact with the plugboard door, so that the plugboard door is knocked.
Further, a clamping groove is formed in the surface of one side, close to the expansion joint, of the hit block, the clamping groove is matched with the outer surface of the expansion joint, and the hit block is matched with the expansion joint through the clamping groove, so that the hit block is attached to the outer surface, and vibration force is transmitted to the expansion joint conveniently.
Furthermore, the top end of the shell of the impacted block is provided with a cavity, and an impact steel ball is arranged in the cavity, so that when the impacted block receives impact, the impact steel ball in the cavity of the impacted block bounces in the cavity to further strengthen the vibration force.
Further, the vibration beating device further comprises a plurality of first vibration air hammers fixed on the outer surface of the expansion joint, and a plurality of second vibration air hammers fixed on the outer surface of the plugboard door, and the inner coal blocks of the coal bucket main body are dredged by beating the outer surface of the expansion joint through the first vibration air hammers and beating the outer surface of the plugboard door through the second vibration air hammers.
Compared with the prior art, the invention has the beneficial effects that:
firstly, the invention monitors the coal blocking phenomenon in a plurality of modes and can determine the coal blocking direction in the coal bucket main body, thereby providing convenience for subsequent dredging, and specifically comprises the following steps: the vibration lining plate is pushed to shake so as to dredge coal blocks in the coal hopper main body, when the coal blocks are sequentially conveyed through a weighing type belt and a conveying belt in the coal feeder, a PLC (programmable logic controller) connected with the weighing type belt detects weight abnormality, the vibration lining plates in different directions are pushed through piston rods of different air cylinders, and the infrared distance measuring device is matched to measure the distance from the infrared distance measuring device when the vibration lining plates push the coal blocks, so that the direction of coal blockage is detected.
Secondly, the invention can shake different elements of the coal bucket from different directions so as to improve dredging efficiency, and specifically comprises the following steps: through the rotation of swinging rod to drive the knocking hammer and strike the piece, receive the knocking hammer and strike the piece when beating the piece and keep away from the expansion joint, with vibration force transmission for the support frame, the support frame will vibrate the power transmission for the picture peg door, when the piece that receives strikes is close to the expansion joint, receive the expansion joint of knocking the hammer and strike, with vibration force transmission for the expansion joint.
The invention will be explained in detail below with reference to the drawings and specific embodiments.
Drawings
FIG. 1 is a schematic diagram of the overall structure of the present invention;
FIG. 2 is a cross-sectional view of the present invention;
FIG. 3 is a schematic view of the structure of the vibration device of the present invention;
FIG. 4 is a schematic view of the structure of the support frame of the present invention;
FIG. 5 is a top view of the present invention;
FIG. 6 is a front view of the present invention;
FIG. 7 is an enlarged view of the area A structure of FIG. 2;
fig. 8 is an enlarged view of the structure of the region a of fig. 4.
In the figure: 10. a coal bucket main body; 20. a loosening device; 21. a power assembly; 211. a support rod; 212. a cylinder; 213. a hinged plate; 22. vibrating the lining plate; 23. an infrared range finder; 30. an expansion joint; 40. a vibration beating device; 41. a hinge base; 42. a swinging rod; 43. knocking a hammer; 44. a connecting rod; 45. a first vibratory air hammer; 46. a second vibratory air hammer; 50. a hit receiving device; 51. a support frame; 511. a support plate; 512. a spring; 513. a buffer plate; 514. a vibrating head; 515. a first through hole; 516. a second through hole; 52. a screw rod; 53. a hit block; 531. a clamping groove; 532. a cavity; 533. countering the steel ball; 54. a drive assembly; 541. a first pulley; 542. a motor; 543. a second pulley; 60. a coal feeder; 70. and (5) inserting a plate door.
Detailed Description
In order that the invention may be more fully understood, a more particular description of the invention will be rendered by reference to the appended drawings, in which several embodiments of the invention are illustrated, but which may be embodied in different forms and are not limited to the embodiments described herein, which are, on the contrary, provided to provide a more thorough and complete disclosure of the invention.
It will be understood that when an element is referred to as being "mounted" on another element, it can be directly on the other element or intervening elements may be present, and when an element is referred to as being "connected" to the other element, it may be directly connected to the other element or intervening elements may also be present, the terms "vertical", "horizontal", "left", "right" and the like are used herein for the purpose of illustration only.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly connected to one of ordinary skill in the art to which this invention belongs, and the knowledge of terms used in the description of this invention herein for the purpose of describing particular embodiments is not intended to limit the invention, and the term "and/or" as used herein includes any and all combinations of one or more of the associated listed items.
1-8, an automatic air hammer vibration system for monitoring broken coal based on a PLC control technology comprises a coal bucket main body 10, wherein a loosening device 20 is arranged on a shell of the coal bucket main body 10 in a penetrating way, an expansion joint 30 is connected to the lower surface of the coal bucket main body through a flange, a vibration device 40 is arranged outside the expansion joint 30, an inserting plate door 70 is fixed to the lower surface of the expansion joint 30, a impacted device 50 is fixed to the upper surface of the inserting plate door 70, and a coal feeder 60 is fixed to the lower surface of the inserting plate door;
a weighing belt 61 and a conveying belt 62 are sequentially arranged in the coal feeder 60 from top to bottom, and a PLC (programmable logic controller) 63 is fixed on the outer surface of the coal feeder 60;
the loosening device 20 comprises a plurality of power components 21 arranged on the outer surface of the coal bucket body 10, a vibration lining plate 22 connected with the execution end of the power components 21 extending to the inside of the coal bucket body 10, and a plurality of infrared distance measuring devices 23 penetrating through the shell of the coal bucket body 10, wherein the infrared distance measuring devices 23 are connected with a PLC (programmable logic controller) 63 through wires;
the vibration beating device 40 comprises a plurality of hinge seats 41 fixed on the outer surface of the expansion joint 30 and a swinging rod 42 rotatably connected with the hinge seats 41 through a rotating shaft, a beating hammer 43 is fixed at the bottom end of the swinging rod 42, a connecting rod 44 is rotatably connected with the top end of the swinging rod through the rotating shaft, and one end of the connecting rod 44 away from the swinging rod 42 is connected with the execution end of the power assembly 21;
in this embodiment, the piston rod of the cylinder 212 in the power assembly 21 stretches to push the vibration liner 22 on the piston rod to shake so as to dredge the coal in the coal bucket main body 10, meanwhile, the infrared distance meter 23 is used for measuring the distance from the infrared distance meter 23 when the vibration liner 22 pushes the coal, so as to judge whether the coal is blocked in the coal bucket main body 10, and the coal falls into the coal feeder 60 through the expansion joint 30 and the plugboard door 70 in sequence, when the weighing sensor in the weighing belt 61 and the conveying belt 62 in the coal feeder 60 sequentially convey the coal, the weight of the coal can be sensed, and when the PLC 63 connected with the weighing belt 61 detects that the weight is abnormal, the piston rod of the cylinder 212 pushes the vibration liner 22 in different directions, and the infrared distance meter 23 is matched with the infrared distance meter 23 to measure the distance from the infrared distance meter 23 when the vibration liner 22 pushes the coal, so that the direction of blocking the coal is detected;
further, the piston rod of the air cylinder 212 stretches to drive the connecting rod 44 to perform angular displacement, one end of the swinging rod 42 is connected with the connecting rod 44 through a rotating shaft, so that the swinging rod 42 is driven to rotate by taking the rotating shaft of the swinging rod 42 on the hinging seat 41 as a rotating center, the swinging rod 42 rotates to drive the other end of the swinging rod 42 to fixedly knock the hammer 43 to knock the knocking block 53, when the screw rod 52 rotates, the knocking block 53 is sleeved on a screw nut on the outer surface of the screw rod 52 through the screw nut, so that the rotating motion of the screw rod 52 is converted into self linear motion, the knocking block 53 is driven to perform translation, when the knocking block 53 is far away from the expansion joint 30, the knocking block 53 knocked by the knocking hammer 43 transmits vibration force to the supporting frame 51, the supporting frame 51 transmits the vibration force to the plugboard door 70, and when the knocking block 53 is close to the expansion joint 30, the vibration force is transmitted to the expansion joint 30 knocked by the knocking hammer 43.
Specifically, referring to fig. 1, 2 and 3, the monitoring end of the infrared range finder 23 extends into the coal bucket body 10 and is located between the vibration liner 22 and the inner wall of the coal bucket body 10, the top end of the infrared range finder 23 is provided with a guide rod 24, the guide rod 24 is inserted into the housing of the coal bucket body 10, the power assembly 21 includes a support rod 211 fixed on the outer surface of the coal bucket body 10, and a cylinder 212 fixed on one end of the support rod 211 far away from the coal bucket body 10, one end of the cylinder 212 extends into the coal bucket body 10, and a hinge plate 213 is fixed on the outer surface of the other end of the cylinder 212, the hinge plate 213 is rotatably connected with the connecting rod 44 through a rotating shaft, the impact receiving device 50 includes a support frame 51 fixed on the upper surface of the support frame 70, a screw rod 52 rotatably connected with the upper surface of the support frame 51 through a bearing seat, an impact receiving block 53 connected with the outer surface of the screw rod 52 through a screw, and the lower surface of the impact receiving block 53 is slidably connected with the upper surface of the support frame 51;
in the present embodiment, the guide rod 24 penetrates the vibration liner 22, so that the vibration liner 22 is guided to perform linear motion by sliding the vibration liner 22 on the outer surface of the guide rod 24, and the guide rod 24 blocks the falling coal, so as to prevent the coal from damaging the infrared range finder 23;
further, the piston rod of the air cylinder 212 stretches to push the vibration lining plate 22 on the piston rod to shake so as to dredge the coal blocks in the coal bucket main body 10;
the piston rod of the air cylinder 212 stretches to drive the connecting rod 44 to perform angular displacement, and one end of the swinging rod 42 is connected with the connecting rod 44 through a rotating shaft, so that the swinging rod 42 is driven to rotate by taking the rotating shaft of the swinging rod on the hinging seat 41 as a rotating center, and the swinging rod 42 is driven to rotate to drive the other end of the swinging rod 42 to fixedly knock the hammer 43 to knock the expansion joint 30;
further, when the screw rod 52 rotates, the driven block 53 is sleeved on the screw nut on the outer surface of the screw rod 52 through the screw nut, so that the rotary motion of the screw rod 52 is converted into the self linear motion, the driven block 53 is driven to translate, when the driven block 53 is far away from the expansion joint 30, the driven block 53 driven by the driving hammer 43 transmits the vibration force to the support frame 51, and the support frame 51 transmits the vibration force to the plugboard door 70;
when the receiving block 53 approaches the expansion joint 30, the expansion joint 30 struck by the striking hammer 43 transmits a vibration force to the expansion joint 30.
Specifically, referring to fig. 4, 7 and 8, the supporting frame 51 includes a supporting plate 511 fixed to the upper surface of the insert plate door 70, springs 512 fixed to four top corners of the upper surface of the supporting plate 511, and a buffer plate 513 connected to the upper surfaces of the springs 512, the impact receiving device 50 further includes a driving assembly 54 connected to the driving end of the screw rod 52, the driving assembly 54 includes a first belt pulley 541 sleeved on the outer surface of the screw rod 52, a motor 542 fixed to the lower surface of the buffer plate 513, and a second belt pulley 543 fixed to the outer surface of the output shaft of the motor 542, wherein the second belt pulley 543 is connected to the first belt pulley 541 by a belt, the supporting frame 51 further includes a plurality of vibration heads 514 fixed to the lower surface of the buffer plate 513, a first through hole 515 provided in the housing of the supporting plate 511 for inserting the expansion joint 30, and a second through hole 516 provided in the housing of the buffer plate 513 for inserting the expansion joint 30;
in this embodiment, the buffer plate 513 provides support for the impact block 53 and the motor 542, and the spring 512 provides buffer for the buffer plate 513 and drives the buffer plate 513 to repeatedly return to the original working position;
further, the output shaft of the motor 542 drives the second belt pulley 543 to rotate, and the second belt pulley 543 is connected with the first belt pulley 541 on the outer surface of the screw rod 52 through a belt, so that the screw rod 52 is driven to rotate;
further, the impact receiving block 53, which is impacted by the impact hammer 43, transmits vibration force to the buffer plate 513 in the supporting frame 51, and when the buffer plate 513 is repeatedly returned to the original working position by the spring 512, the buffer plate 513, which is repeatedly lifted and lowered, extends into the second through hole 516 through the first through hole 515 by the vibration head 514 to contact with the insert plate door 70, thereby impacting the insert plate door 70.
Specifically, referring to fig. 4, 7 and 8, a clamping groove 531 is formed on a surface of the impacted block 53, which is close to the expansion joint 30, the clamping groove 531 is engaged with an outer surface of the expansion joint 30, a cavity 532 is formed at a top end of a housing of the impacted block 53, an impact steel ball 533 is disposed in the cavity 532, the impact device 40 further includes a plurality of first vibration air hammers 45 fixed on the outer surface of the expansion joint 30, and a plurality of second vibration air hammers 46 fixed on the outer surface of the insert plate door 70;
in the present embodiment, the receiving block 53 is engaged with the expansion joint 30 through the clamping groove 531, so that the receiving block 53 is engaged with the outer surface, so that the vibration force is transmitted to the expansion joint 30;
further, when the hit block 53 is hit, the hit steel balls 533 in the cavity 532 of the hit block 53 bounce in the cavity 532 to further enhance the vibration force;
further, the first vibration air hammer 45 is used for knocking the outer surface of the expansion joint 30, and the second vibration air hammer 46 is used for knocking the outer surface of the insert plate door 70, so that the coal inside the coal bucket body 10 is dredged.
The specific operation mode of the invention is as follows:
when the vibration beating system is used, firstly, the vibration lining plates 22 on the piston rods are pushed to shake through the expansion and contraction of the piston rods of the cylinders 212 in the power assembly 21 so as to dredge coal blocks in the coal bucket main body 10, meanwhile, the infrared distance measuring device 23 is used for measuring the distance from the vibration lining plates 22 to the infrared distance measuring device 23 when the vibration lining plates 22 push the coal blocks so as to judge whether the coal blocking phenomenon occurs in the coal bucket main body 10, and the coal blocks which fall into the coal feeder 60 sequentially pass through the expansion joint 30 and the plugboard door 70, when the weighing type belt 61 and the conveying belt 62 in the coal feeder 60 sequentially convey the coal blocks, the weighing sensor in the weighing type belt 61 can sense the weight of the coal blocks, and when the PLC 63 connected with the weighing type belt 61 detects weight abnormality, the vibration lining plates 22 in different directions are pushed through the piston rods of different cylinders 212 and the distance from the infrared distance measuring device 23 is matched with the infrared distance measuring device 23 when the vibration lining plates 22 push the coal blocks, so that the direction of the blocked coal is detected;
the piston rod of the air cylinder 212 stretches to drive the connecting rod 44 to perform angular displacement, one end of the swinging rod 42 is connected with the connecting rod 44 through a rotating shaft, so that the swinging rod 42 is driven to rotate by taking the rotating shaft of the swinging rod 42 on the hinging seat 41 as a rotating center, the swinging rod 42 rotates to drive the other end of the swinging rod 42 to fixedly knock the hammer 43 to knock the hit block 53, when the screw rod 52 rotates, the hit block 53 is sleeved on the screw nut on the outer surface of the screw rod 52 through the screw nut, so that the rotary motion of the screw rod 52 is converted into the self linear motion, the hit block 53 is driven to perform translation, when the hit block 53 is far away from the expansion joint 30, the hit block 53 knocked by the hit hammer 43 transmits vibration force to the supporting frame 51, the supporting frame 51 transmits the vibration force to the plugboard door 70, and when the hit block 53 is close to the expansion joint 30 knocked by the hit hammer 43, the vibration force is transmitted to the expansion joint 30.
While the invention has been described above with reference to the accompanying drawings, it will be apparent that the invention is not limited to the embodiments described above, but is intended to be within the scope of the invention, as long as such insubstantial modifications are made by the method concepts and technical solutions of the invention, or the concepts and technical solutions of the invention are applied directly to other occasions without any modifications.
Claims (9)
1. The automatic air hammer vibration beating system for coal breakage monitoring based on the PLC control technology comprises a coal bucket main body (10) and is characterized in that a loosening device (20) is arranged on a shell of the coal bucket main body (10) in a penetrating mode, an expansion joint (30) is connected to the lower surface of the coal bucket main body through a flange, a vibration beating device (40) is arranged outside the expansion joint (30), an inserting plate door (70) is fixed to the lower surface of the expansion joint, a hit receiving device (50) is fixed to the upper surface of the inserting plate door (70), and a coal feeder (60) is fixed to the lower surface of the inserting plate door;
a weighing belt (61) and a conveying belt (62) are sequentially arranged in the coal feeder (60) from top to bottom, and a PLC (programmable logic controller) 63 is fixed on the outer surface of the coal feeder (60);
the loosening device (20) comprises a plurality of power components (21) arranged on the outer surface of the coal bucket main body (10), a vibration lining plate (22) connected with an execution end of the power components (21) extending to the inside of the coal bucket main body (10), and a plurality of infrared rangefinders (23) penetrating through a shell of the coal bucket main body (10), wherein the infrared rangefinders (23) are connected with a PLC (63) through wires;
the vibration beating device (40) comprises a plurality of hinging seats (41) fixed on the outer surface of the expansion joint (30) and a swinging rod (42) rotatably connected with the hinging seats (41) through a rotating shaft, a beating hammer (43) is fixed at the bottom end of the swinging rod (42), a connecting rod (44) is rotatably connected with the top end of the swinging rod through the rotating shaft, and one end, far away from the swinging rod (42), of the connecting rod (44) is connected with the execution end of the power assembly (21);
the monitoring end of the infrared range finder (23) extends to the inside of the coal bucket main body (10) and is positioned between the vibration lining plate (22) and the inner wall of the coal bucket main body (10), a guide rod (24) is arranged at the top end of the infrared range finder (23), and the guide rod (24) is inserted in the shell of the coal bucket main body (10).
2. The automatic air hammer vibration system for coal breakage monitoring based on the PLC control technology according to claim 1, wherein the power assembly (21) comprises a supporting rod (211) fixed on the outer surface of the coal bucket main body (10), and an air cylinder (212) fixed on one end, far away from the coal bucket main body (10), of the supporting rod (211), one end of the air cylinder (212) extends to the inside of the coal bucket main body (10), a hinged plate (213) is fixed on the outer surface of the other end of the air cylinder, and the hinged plate (213) is rotatably connected with the connecting rod (44) through a rotating shaft.
3. The automatic pneumatic hammer vibration system for monitoring coal breakage based on the PLC control technology according to claim 1, wherein the impact receiving device (50) comprises a support frame (51) fixed on the upper surface of the plugboard door (70), a screw rod (52) rotatably connected with the upper surface of the support frame (51) through a bearing seat, an impact receiving block (53) connected with the outer surface of the screw rod (52) through a screw nut, and the lower surface of the impact receiving block (53) is slidably connected with the upper surface of the support frame (51).
4. An automatic pneumatic hammer vibration system for coal breakage monitoring based on a PLC control technology as claimed in claim 3, wherein the supporting frame (51) comprises a supporting plate (511) fixed on the upper surface of the plugboard door (70), springs (512) fixed at four vertex angles on the upper surface of the supporting plate (511), and a buffer plate (513) connected with the upper surfaces of the springs (512).
5. The automatic pneumatic hammer vibration system for monitoring coal breakage based on the PLC control technology according to claim 4, wherein the impacted device (50) further comprises a driving assembly (54) connected with the driving end of the screw rod (52), the driving assembly (54) comprises a first belt pulley (541) sleeved on the outer surface of the screw rod (52), a motor (542) fixed on the lower surface of the buffer plate (513), and a second belt pulley (543) fixed on the outer surface of an output shaft of the motor (542), and the second belt pulley (543) is connected with the first belt pulley (541) through a belt.
6. The automatic pneumatic hammer vibration system for monitoring coal breakage based on the PLC control technology according to claim 5, wherein the supporting frame (51) further comprises a plurality of vibrating heads (514) fixed on the lower surface of the buffer plate (513), a first through hole (515) arranged on the shell of the supporting plate (511) for inserting the expansion joint (30), and a second through hole (516) arranged on the shell of the buffer plate (513) for inserting the expansion joint (30).
7. The automatic air hammer vibration system for coal breakage monitoring based on the PLC control technology according to claim 6, wherein a clamping groove (531) is formed in the surface of one side, close to an expansion joint (30), of the impacted block (53), and the clamping groove (531) is matched with the outer surface of the expansion joint (30).
8. The automatic pneumatic hammer vibration system for coal breakage monitoring based on the PLC control technology according to claim 7, wherein a cavity (532) is formed in the top end of a shell of the impacted block (53), and an impact steel ball (533) is arranged in the cavity (532).
9. The automatic air hammer vibration system for coal breakage monitoring based on the PLC control technology according to claim 1, wherein the vibration device (40) further comprises a plurality of first vibration air hammers (45) fixed to the outer surface of the expansion joint (30), and a plurality of second vibration air hammers (46) fixed to the outer surface of the insert plate door (70).
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