CN117602382B - Negative pressure type pneumatic conveying rotary feeder - Google Patents
Negative pressure type pneumatic conveying rotary feeder Download PDFInfo
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- CN117602382B CN117602382B CN202410089672.8A CN202410089672A CN117602382B CN 117602382 B CN117602382 B CN 117602382B CN 202410089672 A CN202410089672 A CN 202410089672A CN 117602382 B CN117602382 B CN 117602382B
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- 230000005540 biological transmission Effects 0.000 claims abstract description 129
- 239000000463 material Substances 0.000 claims abstract description 92
- 238000000605 extraction Methods 0.000 claims abstract description 35
- 230000007246 mechanism Effects 0.000 claims abstract description 30
- 238000004140 cleaning Methods 0.000 claims description 19
- 238000005086 pumping Methods 0.000 claims description 13
- 238000000926 separation method Methods 0.000 claims description 9
- 230000000903 blocking effect Effects 0.000 claims description 8
- 238000007789 sealing Methods 0.000 claims description 3
- 230000009471 action Effects 0.000 abstract description 5
- 230000000694 effects Effects 0.000 abstract description 2
- 238000001125 extrusion Methods 0.000 abstract description 2
- 238000000034 method Methods 0.000 description 16
- 230000008569 process Effects 0.000 description 14
- 239000000428 dust Substances 0.000 description 11
- 230000001133 acceleration Effects 0.000 description 5
- 238000007599 discharging Methods 0.000 description 5
- 238000010586 diagram Methods 0.000 description 3
- 239000004744 fabric Substances 0.000 description 3
- 238000011049 filling Methods 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- 241001391944 Commicarpus scandens Species 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000004566 building material Substances 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 238000005243 fluidization Methods 0.000 description 1
- 239000008187 granular material Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000005272 metallurgy Methods 0.000 description 1
- 238000005065 mining Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
- 239000002699 waste material 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
- B65G53/00—Conveying materials in bulk through troughs, pipes or tubes by floating the materials or by flow of gas, liquid or foam
- B65G53/34—Details
- B65G53/40—Feeding or discharging devices
- B65G53/46—Gates or sluices, e.g. rotary wheels
- B65G53/4608—Turnable elements, e.g. rotary wheels with pockets or passages for material
- B65G53/4625—Turnable elements, e.g. rotary wheels with pockets or passages for material with axis of turning perpendicular to flow
-
- 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
- B65G53/00—Conveying materials in bulk through troughs, pipes or tubes by floating the materials or by flow of gas, liquid or foam
- B65G53/04—Conveying materials in bulk pneumatically through pipes or tubes; Air slides
- B65G53/24—Gas suction systems
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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
- B65G53/00—Conveying materials in bulk through troughs, pipes or tubes by floating the materials or by flow of gas, liquid or foam
- B65G53/34—Details
- B65G53/40—Feeding or discharging devices
- B65G53/48—Screws or like rotary conveyors
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Filling Or Emptying Of Bunkers, Hoppers, And Tanks (AREA)
Abstract
The invention relates to the technical field of rotary feeders, and provides a negative pressure type pneumatic conveying rotary feeder, which comprises: the anti-blocking mechanism comprises a spiral feeder, a first transmission part, a second transmission part and a pusher, and can convey materials at the upper port and the lower port of the extraction chamber through the spiral feeder under the action of the spiral feeder and the first transmission part, so that the phenomenon that the materials are blocked at the joint of the extraction chamber and a valve casing of the feeder and the joint of a hopper and the extraction chamber is effectively avoided, and the stable and continuous conveying of the materials is ensured. And under the effect of pusher and second drive unit, can continuously break up the promotion to the material that falls to accelerating chamber inside from the inside feeder valve casing, avoid the material to pile up the extrusion inside the accelerating chamber that is located the feeder valve casing downside owing to the unloading is too fast, when avoiding influencing the normal transport of material, effectively prevent to cause motor, roots blower long-time overload operation and take place to damage because the material blocks up.
Description
Technical Field
The invention relates to the technical field of rotary feeders, in particular to a negative pressure type pneumatic conveying rotary feeder.
Background
Pneumatic conveying is also called air flow conveying, and granular materials are conveyed in the air flow direction in a closed pipeline by utilizing the energy of air flow, so that the method is a specific application of fluidization technology; the pneumatic conveying device has simple structure and convenient operation, can be used for conveying horizontally, vertically or obliquely, and can also simultaneously perform physical operations such as heating, cooling, drying, air flow classification and the like or certain chemical operations in the conveying process; the pneumatic conveying device belongs to dense phase pneumatic conveying, is suitable for conveying materials which are not easy to break particles and powder materials, and is widely applied to industries of casting, chemical industry, medicine and grain. In pneumatic conveying work, the pneumatic conveying device is often matched with a rotary feeder, and the rotary feeder is commonly called a fan, a discharger, a rotary feeding valve, a rotary discharging valve, a rotary valve and the like, is main equipment for conveying bulk materials, and is widely applied to industries of grain processing, chemical raw materials, plastic metallurgy, energy mining, building material cement, wharfs and the like with the advantages of high reliability, low price and the like.
Through searching, the prior patent (publication number: CN 105016084A) discloses high-pressure jet type pneumatic filling equipment, which comprises a belt conveyor, a dustproof feed hopper, a rotary feeding device and a discharge pipe; the dustproof feeding hopper is arranged at the upper end of the rotary feeding device, and the belt conveyor is arranged on a feeding hole of the dustproof feeding hopper; the discharging pipe is arranged below the rotary feeding device, the tail end of the discharging pipe is an air inlet, a jet pipe is arranged on the air inlet, the front end of the discharging pipe is provided with a conveying pipe, and the tail end of the conveying pipe is provided with a tail end guide groove; the rotary feeding device comprises a box body, a rotary feeder and a driving motor for driving the rotary feeder to rotate. In the invention, the whole equipment adopts high-pressure jet type pneumatic conveying filling materials, the structure is simple, the effect is obvious, and the cost is reduced by adopting compressed air to convey the filling materials; and meanwhile, the recycling of waste materials is realized, and resources are saved. And the two ends of the rotary feeder are respectively connected with the box body in a rotating way through bearings, and a rotating shaft of the rotary feeder is connected with an output shaft of the driving motor in a transmission way through a belt (when a pipeline is blocked, the belt slips to prevent the motor from being burnt out due to long-time overload operation).
In the scheme, though the motor can be well protected through the mode that the belt skidded, but in actual working process, when material was carried in extraction chamber and feeder valve casing junction, hopper and extraction chamber junction, because port department bore is comparatively narrow for very easily take place the jam phenomenon, make the transport job stabilization nature of material not enough, and the inside material that falls to accelerating chamber inside of feeder valve casing, pile up the extrusion easily in the accelerating chamber inside that is located feeder valve casing downside because reasons such as unloading is too fast, negative pressure is not enough for material conveying pipeline easily takes place to block up, thereby influence the conveying efficiency of material and cause motor idle running or overload phenomenon easily. Secondly, after long-time conveying work, dust and scale are easily attached to the inner wall of a conveying pipeline, the subsequent conveying work is affected, and the risk of pipeline blockage is increased.
In view of the above, the present invention provides a negative pressure type pneumatic conveying rotary feeder.
Disclosure of Invention
The invention provides a negative pressure type pneumatic conveying rotary feeder, which solves the problems that the existing rotary feeder in the related art is easy to block during material conveying, so that the material conveying stability is poor, and dust and scale are easy to adhere to the inner wall of a conveying pipeline and are difficult to clean.
The technical scheme of the invention is as follows: a negative pressure pneumatic conveying rotary feeder comprising: the rotary feeding mechanism comprises a motor and a feeder valve shell, wherein the motor and the feeder valve shell are fixed at the top of the pallet, an extraction chamber is fixed at the top of the feeder valve shell, the top of the extraction chamber is communicated with the bottom of the hopper, a gas discharge pipe communicated with the interior of the extraction chamber is arranged on the outer wall of the extraction chamber, the bottom end of the feeder valve shell penetrates through the top of the pallet and is fixedly connected with an accelerating chamber, and a transmission assembly is arranged between the feeder valve shell and the motor;
the transmission assembly comprises a transmission box fixedly connected to the top end of the supporting table, a shaft rod is rotatably connected inside the feeder valve housing, and a plurality of feeding blades are annularly arranged on the outer wall of the shaft rod in an array manner and used for pushing out materials inside the feeder valve housing;
an anti-blocking mechanism is arranged at the rear side of the transmission box and comprises a spiral feeder, a first transmission part, a second transmission part and a pusher, wherein the spiral feeder is arranged at the inner side of the extraction chamber, the first transmission part is connected between the spiral feeder and the shaft rod, and materials at the upper port and the lower port of the extraction chamber can be conveyed through the spiral feeder under the transmission fit of the first transmission part and the shaft rod; the pusher is arranged on the inner side of the accelerating room, a second transmission part is connected between the pusher and the shaft lever, and under the transmission fit of the shaft lever and the second transmission part, the material pushed down from the inner part of the feeder valve shell to the inner part of the accelerating room through the feeding blade can be loosened through the pusher;
a negative pressure mechanism is arranged on one side of the hopper and comprises a negative pressure cylinder, a Roots blower is arranged on one side of the negative pressure cylinder and used for carrying out negative pressure treatment on the interior of the negative pressure cylinder, a conveying pipe is fixedly communicated with the outer wall of the negative pressure mechanism, and a detachable connecting piece is connected between the conveying pipe and the accelerating chamber;
the detachable connecting piece comprises two sliding drums respectively sleeved on the outer walls of the accelerating chamber and the conveying pipe, an inner pipe is sleeved on the inner side of the sliding drum in a sliding mode, a fixing ring is fixedly sleeved on the outer wall of the center of the inner pipe, a reset spring is fixedly arranged between the sliding drum and the fixing ring, the reset spring is sleeved on the outer side of the inner pipe, a cleaning ball is placed on the inner side of the inner pipe, the cleaning ball is a plastic hollow ball, and bristles are uniformly distributed on the ball.
Preferably, the transmission assembly further comprises two transmission gears and a chain for transmitting and connecting the two transmission gears, wherein a shaft and a shaft lever on the motor are all rotated and penetrate through the transmission box, and the two transmission gears are respectively fixedly sleeved on the shaft and the outer wall of the shaft lever on the inner side of the transmission box.
Preferably, the spiral feeder comprises a rotating rod arranged on the inner side of the extraction chamber, the rotating rod penetrates through the upper port of the extraction chamber and extends to the inner side of the hopper, spiral blades are fixedly wound on the outer walls of the upper side and the lower side of the rotating rod, a conical disc is sleeved on the outer wall of the middle position of the rotating rod in a rotating mode, and two supporting rods fixedly connected with the inner wall of the extraction chamber are symmetrically fixed on the conical disc.
Preferably, the first transmission part comprises a first bevel gear fixedly sleeved on the outer wall of the rotating rod, a second bevel gear is connected to one side of the first bevel gear in a meshed mode, a vertical plate is fixedly connected to the top of the transmission box, a first connecting rod is fixedly arranged on the outer wall of the second bevel gear, the first connecting rod penetrates through the outer wall of the extraction chamber in a rotating mode and extends into the vertical plate, the first connecting rod is rotationally connected with the vertical plate, a first transmission wheel is fixedly arranged at one end, away from the second bevel gear, of the first connecting rod, a second transmission wheel is fixedly arranged at one end, extending out of the outer wall of the transmission box, of the shaft rod, and a transmission belt is connected between the second transmission wheel and the first transmission wheel.
Preferably, the pusher comprises a slideway arranged on the inner wall of an acceleration chamber, racks are sleeved on the inner side of the slideway in a sliding manner, limiting rods are symmetrically fixed on the outer walls of the racks, sliding grooves for the limiting rods to slide are arranged on the two sides of the slideway, connecting springs are fixedly connected between the racks and the slideway, the connecting springs are positioned on the inner side of the slideway, a fixing rod is vertically fixed at one end, far away from the connecting springs, of the racks, pushing forks are fixed on the outer wall of one side, far away from the racks, of the fixing rod, and a half gear matched with the racks is arranged on the inner side of the acceleration chamber.
Preferably, the second transmission part comprises a third transmission wheel, a linkage belt, a fourth transmission wheel and a second connecting rod, wherein the third transmission wheel is fixedly connected with the second transmission wheel, the second connecting rod extends into the accelerating chamber and is rotationally connected with the accelerating chamber, one end of the second connecting rod, which is positioned at the inner side of the accelerating chamber, is fixedly connected with the half gear, the fourth transmission wheel is fixedly connected with the other end of the second connecting rod, and the linkage belt is in transmission connection between the fourth transmission wheel and the third transmission wheel.
Preferably, the negative pressure mechanism further comprises a material leakage frame obliquely fixed on the inner side of the negative pressure barrel, a separation net is arranged in the negative pressure barrel on the upper side of the material leakage frame, a through groove is formed in the outer wall of the negative pressure barrel at the lowest position of the material leakage frame, and a blocking cover for sealing the through groove is fixed on the negative pressure barrel through bolts.
Preferably, the air suction end and the air outlet end of the Roots blower are respectively connected with an air suction pipe and an air exhaust pipe, and the air suction pipe extends to the inside of the negative pressure cylinder and is positioned on the upper side of the separation net.
Preferably, one end of the conveying pipe extends to the inner side of the negative pressure cylinder and is positioned between the separation net and the material leakage frame.
Preferably, a fan housing is fixed at one end of the accelerating chamber far away from the detachable connecting piece, and a filter screen is fixedly installed at one end of the fan housing far away from the detachable connecting piece.
The working principle and the beneficial effects of the invention are as follows:
1. according to the invention, the anti-blocking mechanism is arranged at the rear side of the transmission box and comprises the spiral feeder, the first transmission part, the second transmission part and the pusher, wherein the spiral feeder is arranged at the inner side of the extraction chamber, the first transmission part is connected between the spiral feeder and the shaft rod, and under the transmission fit of the first transmission part and the shaft rod, materials at the upper port and the lower port of the extraction chamber can be conveyed through the spiral feeder, so that the phenomenon that the materials are blocked at the joint of the extraction chamber and the valve casing of the feeder and the joint of the hopper and the extraction chamber is effectively avoided, and the stable and continuous conveying work is ensured. The material pushing device is arranged on the inner side of the accelerating room, a second transmission part is connected between the material pushing device and the shaft rod, under the transmission cooperation of the shaft rod and the second transmission part, materials falling from the inner part of the valve casing of the material feeding device to the inner part of the accelerating room can be continuously scattered and pushed through the material pushing device, the materials are prevented from being piled and extruded in the accelerating room positioned on the lower side of the valve casing of the material feeding device due to too fast discharging, the normal conveying of the materials is prevented from being influenced, and meanwhile, the damage caused by long-time overload operation of a motor and a Roots blower due to the blockage of the materials is effectively prevented, so that the material feeding device has good safety performance and high use value;
2. according to the invention, a negative pressure mechanism is arranged on one side of a hopper and comprises a negative pressure cylinder, a conveying pipe is fixedly communicated with the outer wall of the negative pressure mechanism, a detachable connecting piece for communicating the conveying pipe with an accelerating chamber is connected between the conveying pipe and the accelerating chamber, the detachable connecting piece is convenient to mount and dismount between the conveying pipe and the accelerating chamber, after the material conveying work is finished, a cleaning ball is placed on the inner side of an inner pipe on the detachable connecting piece, a Roots blower is started, the Roots blower carries out negative pressure treatment on the inner side of the negative pressure cylinder, so that the conveying pipe can be sucked, the cleaning ball can roll in the conveying pipe, the inner wall of the conveying pipe can be rubbed and cleaned through bristles on the outer side of the cleaning ball, dirt on the inner wall of the conveying pipe can be sucked out by the Roots blower, the cleaning efficiency on the inner wall of the conveying pipe is greatly improved, the inner wall of the conveying pipe is prevented from scaling due to long-time conveying work, the subsequent conveying work is influenced, and the risk of blocking the pipeline is reduced;
3. according to the invention, the material leakage frame is arranged at the inner side of the negative pressure cylinder, and the material falling from the material conveying pipe can be scattered through the material leakage frame and then falls down, so that dust in the material can be sucked by the Roots blower, and a dust collection cloth bag can be sleeved at one end of the exhaust pipe, which is far away from the Roots blower, according to actual needs, and is used for collecting dust doped in the material conveying process.
Drawings
The invention will be described in further detail with reference to the drawings and the detailed description.
FIG. 1 is a schematic perspective view of a negative pressure pneumatic conveying rotary feeder according to the present invention;
FIG. 2 is a schematic view of a partial cross-sectional structure of a rotary feeding mechanism according to the present invention;
FIG. 3 is a schematic diagram showing the structure of the anti-blocking mechanism according to the present invention;
FIG. 4 is a schematic diagram illustrating the structure of a pusher according to the present invention;
fig. 5 is a schematic perspective view of a rack according to the present invention;
FIG. 6 is a schematic view showing the structure of a detachable connector according to the present invention;
fig. 7 is a schematic structural diagram of a negative pressure mechanism according to the present invention.
In the figure: 1. a hopper; 2. a rotary feeding mechanism; 21. a gas discharge tube; 22. an extraction chamber; 23. a transmission assembly; 231. a transmission box; 232. a chain; 233. a transmission gear; 234. a shaft lever; 24. a motor; 25. a feeder valve housing; 26. an acceleration chamber; 27. a feed blade; 3. a fan housing; 31. a filter screen; 4. a support; 5. a detachable connection; 51. a slide cylinder; 52. a fixing ring; 53. an inner tube; 54. a return spring; 55. a cleaning ball; 6. a material conveying pipe; 7. an anti-blocking mechanism; 71. a spiral blanking device; 711. spiral leaves; 712. a rotating rod; 713. a conical disk; 714. a support rod; 72. a first transmission member; 721. a first bevel gear; 722. a second bevel gear; 723. a first link; 724. a vertical plate; 725. a first driving wheel; 726. a drive belt; 727. a second driving wheel; 73. a second transmission member; 731. a third driving wheel; 732. a linkage belt; 733. a fourth driving wheel; 734. a second link; 74. a pusher; 741. a slideway; 742. a connecting spring; 743. a rack; 744. a half gear; 745. a fixed rod; 746. pushing fork; 747. a limit rod; 8. a negative pressure mechanism; 81. a material leakage frame; 82. a negative pressure cylinder; 83. a screen; 84. a blocking cover; 9. roots blower; 91. an air suction pipe; 92. and an exhaust pipe.
Detailed Description
The technical solutions of the embodiments of the present invention will be clearly and completely described below in conjunction with the embodiments of the present invention, and it is apparent that the described embodiments are only some embodiments of the present invention, not all embodiments. All other embodiments, which can be made by one of ordinary skill in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Referring to fig. 1 and 2, a negative pressure pneumatic conveying rotary feeder includes: the rotary feeding mechanism 2 is arranged on the supporting table 4 and used for conveying materials in the hopper 1, wherein the rotary feeding mechanism 2 comprises a motor 24 and a feeder valve housing 25, the motor 24 and the feeder valve housing 25 are fixed at the top of the supporting table 4, an extraction chamber 22 is fixed at the top of the feeder valve housing 25, the top of the extraction chamber 22 is communicated with the bottom of the hopper 1, a gas discharge pipe 21 communicated with the inside of the extraction chamber 22 is arranged on the outer wall of the extraction chamber 22 and used for releasing the air pressure in the extraction chamber 22, the blanking work of the hopper 1 is prevented from being influenced, the bottom end of the feeder valve housing 25 penetrates through the top end of the supporting table 4 and is fixedly connected with an accelerating chamber 26, and a transmission assembly 23 is arranged between the feeder valve housing 25 and the motor 24.
The transmission assembly 23 comprises a transmission box 231 fixedly connected to the top end of the pallet 4, a shaft 234 is rotatably connected to the inside of the feeder valve housing 25, and a plurality of feeding blades 27 are annularly arranged on the outer wall of the shaft 234 and used for pushing out materials in the feeder valve housing 25. The transmission assembly 23 further comprises two transmission gears 233 and a chain 232 for transmitting and connecting the two transmission gears 233, wherein a shaft on the motor 24 and the shaft rod 234 are all rotated and penetrated inside the transmission box 231, and the two transmission gears 233 are respectively fixedly sleeved on the outer walls of the shaft and the shaft rod 234 positioned inside the transmission box 231. Starting the motor 24, the motor 24 drives one of the transmission gears 233 to rotate through a shaft thereof, under the action of the chain 232, the two transmission gears 233 synchronously rotate, in the rotation process of the transmission gears 233, the plurality of feeding blades 27 can be driven to rotate through the shaft rod 234, and in the rotation process of the plurality of feeding blades 27, materials falling from the inner side of the pumping chamber 22 can be pushed into the accelerating chamber 26.
Referring to fig. 1 and 2, an anti-blocking mechanism 7 is disposed at the rear side of the transmission box 231, the anti-blocking mechanism 7 includes a spiral feeder 71, a first transmission member 72, a second transmission member 73 and a pusher 74, the spiral feeder 71 is disposed at the inner side of the extraction chamber 22, the first transmission member 72 is connected between the spiral feeder 71 and the shaft 234, and under the transmission cooperation of the first transmission member 72 and the shaft 234, materials at the upper and lower ports of the extraction chamber 22 can be conveyed by the spiral feeder 71. The pusher 74 is disposed inside the acceleration chamber 26, and a second transmission member 73 is connected between the pusher 74 and the shaft 234, so that the material pushed down from the interior of the feeder valve housing 25 to the interior of the acceleration chamber 26 via the feeder blade 27 can be loosened by the pusher 74 in accordance with the transmission between the shaft 234 and the second transmission member 73.
Referring to fig. 2 and 3, the screw feeder 71 includes a rotating rod 712 disposed inside the extracting chamber 22, the rotating rod 712 penetrates through an upper port of the extracting chamber 22 and extends to the inside of the hopper 1, spiral blades 711 are fixedly wound on outer walls of the upper and lower sides of the rotating rod 712, a conical disc 713 is rotatably sleeved on the outer wall of the middle position of the rotating rod 712, and the conical disc 713 is disposed, so that materials falling from the hopper 1 can slide down to the bottom of the extracting chamber 22 along the upper inclined outer wall of the conical disc 713 and finally flow into the inside of the feeder valve housing 25, and two supporting rods 714 fixedly connected with the inner wall of the extracting chamber 22 are symmetrically fixed on the conical disc 713 for fixing the position of the conical disc 713, thereby supporting the rotating rod 712.
The first transmission part 72 comprises a first bevel gear 721 fixedly sleeved on the outer wall of the rotating rod 712, a second bevel gear 722 is connected to one side of the first bevel gear 721 in a meshed manner, a vertical plate 724 is fixedly connected to the top of the transmission box 231, a first connecting rod 723 is fixedly arranged on the outer wall of the second bevel gear 722, the first connecting rod 723 penetrates through the outer wall of the pumping chamber 22 in a rotating mode, extends into the vertical plate 724 and is rotatably connected with the vertical plate 724, a first transmission wheel 725 is fixedly arranged at one end, far away from the second bevel gear 722, of the first connecting rod 723, a second transmission wheel 727 is fixedly arranged at one end, extending out of the outer wall of the transmission box 231, of the shaft 234, and a transmission belt 726 is connected between the second transmission wheel 727 and the first transmission wheel 725. When the shaft rod 234 rotates, the second driving wheel 727 can be driven to rotate, under the driving of the driving belt 726, the second driving wheel 727 and the first driving wheel 725 synchronously rotate, the first driving wheel 725 drives the first connecting rod 723 to rotate, the first connecting rod 723 drives the second bevel gear 722 to rotate, the second bevel gear 722 drives the rotating rod 712 to rotate through the first bevel gear 721, the rotating rod 712 can uniformly convey materials in the hopper 1 to the inside of the pumping chamber 22 through the spiral blade 711, and then the materials are uniformly conveyed to the inner side of the feeder valve casing 25 from the inside of the pumping chamber 22, so that the blocking phenomenon of the materials at the joint of the pumping chamber 22 and the feeder valve casing 25 and the joint of the hopper 1 and the pumping chamber 22 is effectively avoided.
Referring to fig. 2, 3, 4 and 5, the pusher 74 includes a slide 741 provided on an upper inner wall of the accelerating chamber 26, a rack 743 is slidably sleeved on an inner side of the slide 741, a limit rod 747 is symmetrically fixed on an outer wall of the rack 743, sliding grooves for sliding the limit rod 747 are provided on two sides of the slide 741, a connecting spring 742 is fixedly connected between the rack 743 and the slide 741, the connecting spring 742 is located on an inner side of the slide 741, a fixing rod 745 is vertically fixed at one end of the rack 743 away from the connecting spring 742, a pushing fork 746 is fixed on an outer wall of one side of the fixing rod 745 away from the rack 743, a half gear 744 matched with the rack 743 is provided on an inner side of the accelerating chamber 26, and the half gear 744 can push the rack 743 once every time.
The second transmission part 73 includes a third transmission wheel 731, a linkage belt 732, a fourth transmission wheel 733, and a second link 734, where the third transmission wheel 731 is fixedly connected with the second transmission wheel 727, the second link 734 extends into the accelerating chamber 26 and is rotatably connected with the accelerating chamber 26, one end of the second link 734 located inside the accelerating chamber 26 is fixedly connected with the half gear 744, the fourth transmission wheel 733 is fixedly connected with the other end of the second link 734, and the linkage belt 732 is in transmission connection between the fourth transmission wheel 733 and the third transmission wheel 731. In the process of rotating the second driving wheel 727, the third driving wheel 731 can be driven to rotate, under the action of the linkage belt 732, the fourth driving wheel 733 and the third driving wheel 731 synchronously rotate, in the process of rotating the fourth driving wheel 733, the half gear 744 can be driven to rotate through the second connecting rod 734, the rack 743 can be pushed once when the half gear 744 rotates for one circle, the rack 743 slides inside the slide way 741 and compresses the connecting spring 742, when the half gear 744 rotates to be disengaged from the rack 743, the rack 743 is driven to slide and reset by utilizing good elastic performance of the connecting spring 742, in the process, the rack 743 drives the push fork 746 to reciprocate through the fixing rod 745, and the materials falling from the inside of the valve housing 25 to the inside of the accelerating chamber 26 are prevented from being scattered and pushed inside the accelerating chamber 26 positioned at the lower side of the valve housing 25 due to excessively fast material blanking.
Referring to fig. 7, a negative pressure mechanism 8 is disposed on one side of the hopper 1, the negative pressure mechanism 8 includes a negative pressure cylinder 82, a Roots blower 9 is disposed on one side of the negative pressure cylinder 82, and is configured to perform negative pressure treatment on the inside of the negative pressure cylinder 82, a material conveying pipe 6 is fixedly connected to an outer wall of the negative pressure mechanism 8, and after the negative pressure treatment of the negative pressure cylinder 82, the material conveying pipe 6 is pumped. The negative pressure mechanism 8 further comprises a material leakage frame 81 which is obliquely fixed on the inner side of the negative pressure barrel 82, a separation net 83 is arranged in the negative pressure barrel 82 on the upper side of the material leakage frame 81, materials are prevented from being sucked into the Roots blower 9, a through groove is formed in the outer wall of the negative pressure barrel 82 positioned at the lowest position of the material leakage frame 81, and a blocking cover 84 for sealing the through groove is fixed on the negative pressure barrel 82 through bolts. The air suction end and the air outlet end of the Roots blower 9 are respectively connected with an air suction pipe 91 and an air discharge pipe 92, and the air suction pipe 91 extends into the negative pressure cylinder 82 and is positioned on the upper side of the separation net 83. One end of the exhaust pipe 92 far away from the Roots blower 9 can be sleeved with a dust collection cloth bag according to actual needs, and the dust collection cloth bag is used for collecting dust generated in the material conveying process. One end of the material conveying pipe 6 extends to the inner side of the negative pressure cylinder 82 and is positioned between the separation net 83 and the material leakage frame 81. The fan housing 3 is fixed at one end of the accelerating chamber 26 far away from the detachable connecting piece 5, and the filter screen 31 is fixedly arranged at one end of the fan housing 3 far away from the detachable connecting piece 5 and is used for filtering air sucked into the inner side of the fan housing 3 so as to avoid polluting materials conveyed by the belt;
referring to fig. 6, a detachable connecting piece 5 is connected between the material conveying pipe 6 and the accelerating chamber 26, wherein the detachable connecting piece 5 includes two sliding drums 51 respectively sleeved on the accelerating chamber 26 and the outer wall of the material conveying pipe 6, an inner pipe 53 is sleeved on the inner sides of the two sliding drums 51 in a sliding manner, a fixing ring 52 is fixedly sleeved on the outer wall of the center of the inner pipe 53, a return spring 54 is fixed between the two sliding drums 51 and the fixing ring 52, the return spring 54 is sleeved on the outer side of the inner pipe 53, a cleaning ball 55 is placed on the inner side of the inner pipe 53, and the cleaning ball 55 is a plastic hollow ball and bristles are uniformly distributed on the ball. During the material conveying operation, the cleaning balls 55 are taken out from the inner side of the inner tube 53. After the material conveying operation is finished, the two sliding drums 51 are closed, the reset spring 54 is compressed, the inner tube 53 can be detached from the position between the conveying pipe 6 and the accelerating chamber 26, at the moment, the cleaning balls 55 are placed on the inner side of the inner tube 53, then the two sliding drums 51 are closed, the inner tube 53 is installed between the conveying pipe 6 and the accelerating chamber 26, the Roots blower 9 is started, the Roots blower 9 carries out negative pressure treatment on the inside of the negative pressure drum 82, so that the conveying pipe 6 can be sucked, the cleaning balls 55 can roll in the conveying pipe 6, the inner wall of the conveying pipe 6 can be cleaned through the bristles on the outer side of the cleaning balls 55 in a friction mode, and dirt cleaned by the Roots blower 9 is sucked out.
Working principle and using flow: when the device works, the motor 24 is started, the motor 24 drives one of the transmission gears 233 to rotate through the shaft of the motor, under the action of the chain 232, the two transmission gears 233 synchronously rotate, in the rotating process of the transmission gears 233, the plurality of feeding blades 27 can be driven to rotate through the shaft rod 234, and in the rotating process of the plurality of feeding blades 27, materials falling from the inner side of the pumping chamber 22 can be pushed into the accelerating chamber 26. While the shaft rod 234 rotates, the second driving wheel 727 can be driven to rotate, under the driving of the driving belt 726, the second driving wheel 727 and the first driving wheel 725 synchronously rotate, the first driving wheel 725 drives the first connecting rod 723 to rotate, the first connecting rod 723 drives the second bevel gear 722 to rotate, the second bevel gear 722 drives the rotating rod 712 to rotate through the first bevel gear 721, the rotating rod 712 can uniformly convey the material inside the hopper 1 to the inside of the pumping chamber 22 through the spiral blade 711, and then the material is uniformly conveyed to the inner side of the feeder valve casing 25 from the inside of the pumping chamber 22, so that the blocking phenomenon of the material at the joint of the pumping chamber 22 and the feeder valve casing 25 and the joint of the hopper 1 and the pumping chamber 22 is effectively avoided, and the stable and continuous blanking operation is ensured. And in the process of the rotation of the second driving wheel 727, the third driving wheel 731 can be driven to rotate, under the action of the linkage belt 732, the fourth driving wheel 733 and the third driving wheel 731 synchronously rotate, in the process of the rotation of the fourth driving wheel 733, the half gear 744 can be driven to rotate through the second connecting rod 734, the rack 743 can be pushed once when the half gear 744 rotates for one circle, the rack 743 slides inside the slide way 741 and compresses the connecting spring 742, when the half gear 744 rotates until being not meshed with the rack 743, the rack 743 is driven to slide and reset by utilizing good elastic performance of the connecting spring 742, in the process, the rack 743 drives the push fork 746 to reciprocate through the fixing rod 745, so that materials falling from the inside of the feeder valve housing 25 to the inside of the accelerating chamber 26 are scattered and pushed, and the materials are prevented from being accumulated and extruded in the inside of the accelerating chamber 26 positioned at the lower side of the feeder valve housing 25 due to too fast blanking, and the conveying work of the materials is prevented.
After the material conveying operation is finished, the two sliding drums 51 are closed, the reset spring 54 is compressed, the inner tube 53 can be detached from the position between the conveying pipe 6 and the accelerating chamber 26, at the moment, the cleaning balls 55 are placed on the inner side of the inner tube 53, then the two sliding drums 51 are closed, the inner tube 53 is installed between the conveying pipe 6 and the accelerating chamber 26, the Roots blower 9 is started, the Roots blower 9 carries out negative pressure treatment on the inside of the negative pressure drum 82, so that the conveying pipe 6 can be sucked, the cleaning balls 55 can roll in the conveying pipe 6, the inner wall of the conveying pipe 6 can be cleaned through the bristles on the outer side of the cleaning balls 55 in a friction mode, and dirt cleaned by the Roots blower 9 is sucked out. The cleaning ball 55 rolls off the upper end of the conveying pipe 6 to the material leakage rack 81, and the blocking cover 84 is opened for taking. And the setting of leaking work or material rest 81 can break up the material that falls down from conveying pipeline 6 and then fall for dust in the material can be sucked by roots blower 9, can cover according to actual need at the one end that blast pipe 92 kept away from roots blower 9 and establish dust removal sack for collect the dust of conveying in-process, production.
The foregoing description of the preferred embodiments of the invention is not intended to be limiting, but rather is intended to cover all modifications, equivalents, alternatives, and improvements that fall within the spirit and scope of the invention.
Claims (10)
1. A negative pressure pneumatic conveying rotary feeder comprising: the automatic feeding device is characterized in that the automatic feeding device comprises a supporting table (4), a hopper (1) arranged above the supporting table (4) and a rotary feeding mechanism (2) arranged on the supporting table (4) and used for conveying materials in the hopper (1), the automatic feeding device comprises a motor (24) fixed at the top of the supporting table (4) and a feeder valve housing (25), an extraction chamber (22) is fixed at the top of the feeder valve housing (25), the top of the extraction chamber (22) is communicated with the bottom of the hopper (1), a discharge tube (21) communicated with the inside of the extraction chamber (22) is arranged on the outer wall of the extraction chamber (22), the bottom end of the feeder valve housing (25) penetrates through the top of the supporting table (4) and is fixedly connected with an accelerating chamber (26), and a transmission assembly (23) is arranged between the feeder valve housing (25) and the motor (24).
The transmission assembly (23) comprises a transmission box (231) fixedly connected to the top end of the supporting table (4), a shaft lever (234) is rotatably connected inside the feeder valve housing (25), and a plurality of feeding blades (27) are annularly arranged on the outer wall of the shaft lever (234) and used for pushing out materials inside the feeder valve housing (25);
an anti-blocking mechanism (7) is arranged at the rear side of the transmission box (231), the anti-blocking mechanism (7) comprises a spiral feeder (71), a first transmission part (72), a second transmission part (73) and a pusher (74), the spiral feeder (71) is arranged at the inner side of the pumping chamber (22), a first transmission part (72) is connected between the spiral feeder (71) and the shaft lever (234), and materials at the upper port and the lower port of the pumping chamber (22) can be conveyed through the spiral feeder (71) under the transmission fit of the first transmission part (72) and the shaft lever (234); the pusher (74) is arranged at the inner side of the accelerating chamber (26), a second transmission part (73) is connected between the pusher (74) and the shaft lever (234), and under the transmission cooperation of the shaft lever (234) and the second transmission part (73), the material pushed down from the interior of the feeder valve housing (25) to the interior of the accelerating chamber (26) through the feeding blade (27) can be loosened through the pusher (74);
a negative pressure mechanism (8) is arranged on one side of the hopper (1), the negative pressure mechanism (8) comprises a negative pressure cylinder (82), a Roots blower (9) is arranged on one side of the negative pressure cylinder (82) and used for carrying out negative pressure treatment on the interior of the negative pressure cylinder (82), a conveying pipe (6) is fixedly communicated with the outer wall of the negative pressure mechanism (8), and a detachable connecting piece (5) is connected between the conveying pipe (6) and the accelerating chamber (26);
the detachable connecting piece (5) comprises two sliding drums (51) respectively sleeved on the outer walls of the accelerating chamber (26) and the conveying pipe (6), an inner pipe (53) is sleeved on the inner side of the sliding drums (51) in a sliding mode, a fixing ring (52) is fixedly sleeved on the outer wall of the center of the inner pipe (53), reset springs (54) are fixedly arranged between the sliding drums (51) and the fixing ring (52), the reset springs (54) are sleeved on the outer side of the inner pipe (53), cleaning balls (55) are placed on the inner side of the inner pipe (53), and the cleaning balls (55) are plastic hollow balls and are evenly distributed with bristles on the balls.
2. The negative pressure pneumatic conveying rotary feeder according to claim 1, wherein the transmission assembly (23) further comprises two transmission gears (233) and a chain (232) for transmitting and connecting the two transmission gears (233), the shaft and the shaft lever (234) on the motor (24) are all rotated and penetrated inside the transmission box (231), and the two transmission gears (233) are respectively fixedly sleeved on the shaft and the outer wall of the shaft lever (234) which are positioned inside the transmission box (231).
3. The negative pressure type pneumatic conveying rotary feeder according to claim 2, wherein the spiral feeder (71) comprises a rotating rod (712) arranged on the inner side of the extraction chamber (22), the rotating rod (712) penetrates through the upper port of the extraction chamber (22) and extends to the inner side of the hopper (1), spiral blades (711) are fixedly wound on the outer walls of the upper side and the lower side of the rotating rod (712), a conical disc (713) is rotatably sleeved on the outer wall of the middle position of the rotating rod (712), and two supporting rods (714) fixedly connected with the inner wall of the extraction chamber (22) are symmetrically fixed on the conical disc (713).
4. A negative pressure pneumatic conveying rotary feeder according to claim 3, characterized in that the first transmission part (72) comprises a first bevel gear (721) fixedly sleeved on the outer wall of the rotary rod (712), a second bevel gear (722) is connected to one side of the first bevel gear (721) in a meshed manner, a vertical plate (724) is fixedly connected to the top of the transmission box (231), a first connection rod (723) is fixed to the outer wall of the second bevel gear (722), the first connection rod (723) penetrates through the outer wall of the extraction chamber (22) in a rotating manner and extends into the vertical plate (724) and is connected with the vertical plate (724) in a rotating manner, a first transmission wheel (725) is fixed to one end, far away from the second bevel gear (722), of the first connection rod (723), a second transmission wheel (727) is fixed to one end, extending out of the outer wall of the transmission box (231), of the shaft (234), and a transmission belt (726) is connected between the second transmission wheel (727) and the first transmission wheel (726).
5. The negative pressure type pneumatic conveying rotary feeder according to claim 4, wherein the pusher (74) comprises a slide way (741) arranged on the inner wall of the accelerating chamber (26), a rack (743) is sleeved on the inner side of the slide way (741) in a sliding manner, limit rods (747) are symmetrically fixed on the outer wall of the rack (743), sliding grooves for the limit rods (747) to slide are arranged on two sides of the slide way (741), a connecting spring (742) is fixedly connected between the rack (743) and the slide way (741), the connecting spring (742) is positioned on the inner side of the slide way (741), a fixing rod (745) is vertically fixed at one end, far away from the connecting spring (742), of the fixing rod (745), a pushing fork (746) is fixed on the outer wall of one side, far away from the rack (743), of the fixing rod (745), and a half gear (744) matched with the rack (743) is arranged on the inner side of the accelerating chamber (26).
6. A negative pressure pneumatic conveying rotary feeder according to claim 1, characterized in that the second transmission part (73) comprises a third transmission wheel (731), a linkage belt (732), a fourth transmission wheel (733) and a second connecting rod (734), the third transmission wheel (731) is fixedly connected with the second transmission wheel (727), the second connecting rod (734) extends into the accelerating chamber (26) and is rotatably connected with the accelerating chamber, one end of the second connecting rod (734) located at the inner side of the accelerating chamber (26) is fixedly connected with a half gear (744), the fourth transmission wheel (733) is fixedly connected with the other end of the second connecting rod (734), and the linkage belt (732) is in transmission connection between the fourth transmission wheel (733) and the third transmission wheel (731).
7. The negative pressure type pneumatic conveying rotary feeder according to claim 1, wherein the negative pressure mechanism (8) further comprises a material leakage frame (81) obliquely fixed on the inner side of the negative pressure barrel (82), a separation net (83) is arranged in the negative pressure barrel (82) on the upper side of the material leakage frame (81), a through groove is formed in the outer wall of the negative pressure barrel (82) located at the lowest position of the material leakage frame (81), and a blocking cover (84) for sealing the through groove is fixed on the negative pressure barrel (82) through bolts.
8. The negative pressure type pneumatic conveying rotary feeder according to claim 1, wherein the air suction end and the air outlet end of the Roots blower (9) are respectively connected with an air suction pipe (91) and an air exhaust pipe (92), and the air suction pipe (91) extends into the negative pressure cylinder (82) and is positioned on the upper side of the separation net (83).
9. A negative pressure pneumatic conveying rotary feeder according to claim 1, wherein one end of the conveying pipe (6) extends to the inner side of the negative pressure cylinder (82) and is positioned between the separation net (83) and the material leakage frame (81).
10. A negative pressure pneumatic conveying rotary feeder according to claim 1, characterized in that a fan housing (3) is fixed at the end of the accelerating chamber (26) far away from the detachable connection piece (5), and a filter screen (31) is fixedly arranged at the end of the fan housing (3) far away from the detachable connection piece (5).
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| CN202410089672.8A CN117602382B (en) | 2024-01-23 | 2024-01-23 | Negative pressure type pneumatic conveying rotary feeder |
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| CN202410089672.8A CN117602382B (en) | 2024-01-23 | 2024-01-23 | Negative pressure type pneumatic conveying rotary feeder |
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| GB388486A (en) * | 1931-11-04 | 1933-03-02 | Louis Bertram Cousans | Improvements in and relating to the extraction of kernels |
| JP2001151346A (en) * | 1999-11-26 | 2001-06-05 | Heishin Engineering & Equipment Co Ltd | Method and device for preventing clogging of powder transfer pipe and uniaxially eccentric screw pump for powder transfer |
| CN109626014A (en) * | 2019-01-31 | 2019-04-16 | 三门峡高新机械有限公司 | Husk cleaning, storage and conveying production line |
| CN111620130A (en) * | 2020-06-23 | 2020-09-04 | 合肥领远新材料科技有限公司 | High-density magnetic particle centralized sealing feeding system device |
| CN115744313A (en) * | 2022-11-23 | 2023-03-07 | 马鞍山意泰诺环保科技有限公司 | Bulk dust material conveying combined cabinet and implementation method thereof |
| CN115838080A (en) * | 2022-12-27 | 2023-03-24 | 江苏道金智能装备股份有限公司 | Airflow feeding system for negative powder particles of lithium battery |
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2024
- 2024-01-23 CN CN202410089672.8A patent/CN117602382B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB388486A (en) * | 1931-11-04 | 1933-03-02 | Louis Bertram Cousans | Improvements in and relating to the extraction of kernels |
| JP2001151346A (en) * | 1999-11-26 | 2001-06-05 | Heishin Engineering & Equipment Co Ltd | Method and device for preventing clogging of powder transfer pipe and uniaxially eccentric screw pump for powder transfer |
| CN109626014A (en) * | 2019-01-31 | 2019-04-16 | 三门峡高新机械有限公司 | Husk cleaning, storage and conveying production line |
| CN111620130A (en) * | 2020-06-23 | 2020-09-04 | 合肥领远新材料科技有限公司 | High-density magnetic particle centralized sealing feeding system device |
| CN115744313A (en) * | 2022-11-23 | 2023-03-07 | 马鞍山意泰诺环保科技有限公司 | Bulk dust material conveying combined cabinet and implementation method thereof |
| CN115838080A (en) * | 2022-12-27 | 2023-03-24 | 江苏道金智能装备股份有限公司 | Airflow feeding system for negative powder particles of lithium battery |
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