CN100423627C

CN100423627C - Lifter without cracking bucket

Info

Publication number: CN100423627C
Application number: CNB2006100526205A
Authority: CN
Inventors: 陈焕春
Original assignee: Individual
Current assignee: Individual
Priority date: 2006-07-20
Filing date: 2006-07-20
Publication date: 2008-10-08
Anticipated expiration: 2026-07-20
Also published as: CN1887676A

Abstract

The no-breaking bucket lifter has a motor on the frame to draw the rope pulley via the gear box for the elevating bucket to move up and down. During ascent, the switch pin of the elevating bucket opening mechanism is blocked off by the switch board on the frame, the gate of the elevating bucket is opened for the material to flow out from the elevating bucket through the discharge bin, and the upper limiting switch stops ascending before the motor rotates reversely after some delay. During descent, the switch pin of the storing bucket opening mechanism is blocked off by the switch board on the elevating bucket, the gate of the storing bucket is opened for material to flow into the elevating bucket, the lower limiting switch stops descending before the motor rotates forwards after some delay. The process is repeated for elevating material continuously without breaking material.

Description

Lifter without cracking bucket

Affiliated technical field

The present invention relates to the Transport Machinery product, especially the bucket elevator used of grain processing.

Background technology

Bucket elevator is to use more Transport Machinery in the grain processing, is generally used for the vertical transport of material.Particularly in the grain processing complete set of equipments, generally with the mass transport between bucket elevator solution process equipment.The operation principle of existing bucket elevator is: the winnowing pan band of filling winnowing pan at a certain distance is contained on the driving wheel of arranging up and down and follower, power makes top driving wheel drive the winnowing pan band under the follower tensioning, move up and down, winnowing pan rises to the storehouse after the Lower Hold that material flows to is put into material, under the driving wheel rotation, pass through centrifugal force or gravity dumping, the discharging opening of the material of the overwhelming majority on last storehouse flows out, and reaches the purpose that material is promoted.The patent of invention " bucket hoister with lower automatic tensioning structure " that detailed structure can be applied for the first quarter in 2006 with reference to me and the interrelated data of " arc dentiform passive wheel ".The dependable performance of bucket elevator is widely used.But the material that is scattered when flowing to the material of Lower Hold and the discharging of last storehouse during the work of this elevator all may enter down between regulating wheel and the winnowing pan band, is rolled by them and causes fragmentation.During centrifugal discharge, material has higher movement velocity, and the bump of formation also can cause fragmentation.Particularly in grain processing, through repeatedly promoting, the fragmentation that causes can not be ignored.As in the husk rice complete set of equipments, after rice huller paddy operation, promoting the fragmentation that causes directly influences Mi Jingdu and milled rice rate, causes bigger economic loss.At present, the way of solution is to reduce the speed of elevator and reduce regulating wheel on the structure and the winnowing pan band rolls and causes fragmentation as far as possible.Because structural limitations can not thoroughly solve the material problem that rolls, thereby can not eradicate the broken problem of bucket elevator.

Summary of the invention

The objective of the invention is to overcome the defective of prior art, a kind of lifter without cracking bucket is provided, avoid rolling material, thereby realize not having broken from operation principle.

The objective of the invention is to realize as follows: lifter without cracking bucket is made up of power section, frame, elevator scoop, storage bin hopper, electrical equipment control original paper.The motor that is contained in above the frame passes through gearbox, makes the needed rotating speed of rope sheave acquisition traction elevator scoop, has electricity loss brake that motor is stopped, instant braking, satisfied lifting security needs.The steel wire rope that is wrapped on the rope sheave drives elevator scoop under its roller is retrained by the channel-section steel groove of frame, moves up and down, and gate opening mechanism is all arranged on elevator scoop and the storage bin hopper.Rise under the driving of elevator scoop at motor, the switch pin of opener is blocked by the switchboard of frame top on the elevator scoop, promptly opens the elevator scoop gate, and the discharge bucket of the material in the elevator scoop on frame flows out.Push down the frame upper limit position switch simultaneously, the motor outage is risen and is stopped, and opens the time relay of control motor counter-rotating, prolongs to make the motor counter-rotating after certain hour makes material flow clean, and elevator scoop descends, and limit switch resets, and the elevator scoop upper lock gate cuts out.When elevator scoop drops to storage bin hopper bottom, be contained in the switch pin that switchboard on the elevator scoop is pushed down the storage bin hopper opener, open the storage bin hopper gate, the material in the storage bin hopper flows to elevator scoop.Simultaneously, depress the frame lower position switch.The motor outage, decline stops, and opens the time relay that the control motor is just changeing, and prolongs after certain hour makes elevator scoop fill material motor just to be changeed, and elevator scoop rises, and limit switch resets, and the storage bin hopper upper lock gate cuts out.Rerun by above process, just can the material in the storage bin hopper constantly be promoted.

The advantage that this lifter without cracking bucket has is: material just flows to elevator scoop from storage bin hopper in the whole lifting process, promotes the back material and is flowed out by discharging opening, and nothing rolls, and does not have bump, does not therefore have broken.Be particularly suitable for the lifting work of operation behind the complete set of rice milling equipment, reduced the percentage of damage of processing, obvious economic.

Description of drawings

Below in conjunction with accompanying drawing the present invention is further described.

Accompanying drawing 1 is the front view of lifter without cracking bucket, accompanying drawing 2 is cutaway views that accompanying drawing 1 prolongs A-A, accompanying drawing 3 is the cutaway views that B-B amplifies that prolong of accompanying drawing 2, accompanying drawing 4 is that accompanying drawing 2 prolongs the cutaway view that C-C amplifies, accompanying drawing 5 is that accompanying drawing 1 prolongs the cutaway view that D-D amplifies, and accompanying drawing 6 is electrical schematics of lifter without cracking bucket.

Among the accompanying drawing 1-5: 1, balance weight iron, 2, the X2 limit switch, 3, long connecting rod, 4, the switch pin first, 5, short connecting rod, 6, the storage bin hopper gate, 7, the elevator scoop gate, 8, discharge bucket, 9, switch pin second, 10, switchboard second, 11, rope sheave, 12, gearbox, 13, motor, 14, steel wire rope, 15, elevator scoop, 16, the switchboard first, 17, roller, 18, frame, 19, storage bin hopper, 20, baffle A, 21, bearing track, 22, bearing, 23, the X1 limit switch, 24, baffle B.Among the accompanying drawing 1-5 1,3,5,21,22 is a plurality of, the position difference of part.In accompanying drawing 6 electrical schematics: the M-electromotor, the positive contactor of C1-motor, C2-motor counter-rotating contactor, R-electrothermal relay, the time relay of S1-control C2, the time relay of S2-control C1, the limit switch of X1-control C1 and S1, the limit switch of X2-control C2 and S2, K1-C1 releases the button, K2-C2 releases the button, T-stop button, Z-electricity loss brake.

Embodiment

With reference to accompanying drawing, the motor 13 and the gearbox 12 that have electricity loss brake all are contained on the platform that shaped steel is welded into above the frame 18.Motor 13 is passed to gearbox 12 to power, and after speed change, the rope sheave 11 on the gearbox 12 obtains to drive the speed that elevator scoop 15 moves up and down to be needed, and can select on demand.An end that is wrapped in the steel wire rope 14 on the rope sheave is fixed on elevator scoop 15 upper ends.The roller 17 that elevator scoop 15 both sides are arranged up and down is contained in the corresponding groove of 18 liang of upright channel-section steels of frame, makes elevator scoop rectilinear motion about in the of 15.Roller 17 is installed on the hollow shaft by bearing, is fixed by bolts to elevator scoop 15 sides.The plane that 4 rollers, 17 axis are formed makes the bucket capacity of both sides equate that steel wire rope 14 centers are by this planar central, in order that make lifting force pass through the center of gravity of elevator scoop 15.Storage bin hopper 19 is contained on the support of frame 18 belows.The capable shape of elevator scoop 15 and storage bin hopper 19 is basic identical, is rectangle hole above, the inclined-plane of the end for material is flowed out smoothly, and the base on inclined-plane is the bottom of hopper outlet, what cooperate with outlet has gate and an opener thereof.Switchboard second 10 is equipped with in appropriate location, frame 18 top, elevator scoop 15 rises, the switch pin second 9 of elevator scoop 15 upper lock gate openers is run into when closing plate second 10, elevator scoop gate 7 stop motions by short connecting rod 5 connections, the flitch that draws on the gate effectively is connected with discharge bucket 8 on the frame 18 top supports, and the material in the elevator scoop 15 begins to flow out through discharge bucket 8.Elevator scoop 15 continues to rise, switch pin second 9 enters in the groove of switchboard second 10, when elevator scoop gate 7 was opened fully, the baffle B 24 of elevator scoop 15 1 sides tops is pushed down the X1 limit switch 23 that is contained in frame 18 tops opened its normally-closed contact, the relay C1 dead electricity of just being changeed by the motor 13 of its control, elevator scoop 15 rises and stops, simultaneously the normally opened contact of X1 limit switch 23 close and, open the time relay S1 of control C2, enter delay procedure, Deng the material flow in the elevator scoop 15 clean after, time-delay finishes.Time relay S1 opens the relay C2 that makes motor 13 counter-rotatings, and elevator scoop 15 descends.Switchboard second 10 drives switch pin second 9 resets elevator scoop gate 7.Baffle B 24 leaves, and X1 limit switch 23 resets.When elevator scoop 15 drops to storage bin hopper 19 bottoms, when the switchboard first 16 on the elevator scoop 15 is run into the switch pin 4 of storage bin hopper 19 upper lock gate openers, the storage bin hopper gate 6 that connects by short connecting rod 5 moves downward, drawing flitch and 15 effective linkings suitable for reading of elevator scoop on the gate.Elevator scoop 15 continues to drop to storage bin hopper gate 6 when opening fully, switch pin 4 enters in the groove of switchboard first 16, the baffle A 20 of elevator scoop 15 opposite sides below is pushed down the X2 limit switch 2 that is contained in frame 18 belows opens its normally-closed contact, relay C2 dead electricity by motor 13 counter-rotating of its control, elevator scoop 15 descends and stops, close simultaneously by the normally opened contact of X2 limit switch 2 and, open the time relay S2 of control C1, enter delay procedure, Deng full its volume of the material flow in the elevator scoop 15 80% after, time-delay finishes, time relay S2 opens the relay C1 that motor 13 is just being changeed, elevator scoop 15 rises, and switchboard first 16 drives switch pin 4 resets storage bin hopper gate 6.Baffle A 20 leaves, and X2 limit switch 2 resets.

The structure of elevator scoop and storage bin hopper gate opening mechanism is basic identical, by balance weight iron 1, long connecting rod 3, and switch pin, short connecting rod 5, switchboard are formed.Long connecting rod 3 usefulness pins are hinged on one side of bucket, and balance weight iron 1 is installed in an end of long connecting rod 3, and the other end is hinged by an end of switch pin and short connecting rod 5, and the other end and the gate of short connecting rod 5 are hinged.Switchboard is run into switch pin, long connecting rod 3 is rotated, switch pin drives short connecting rod 5 and gate moves downward for hopper, starting gate, switch pin enters in the groove of switchboard simultaneously, when switchboard ran back, the groove of switchboard made switch pin drive short connecting rod 5 and gate for the hopper closed shutter that moves upward relatively, long connecting rod 3 backward rotation.The resultant couple that the moment that balance weight iron 1 produces long connecting rod 3 produces long connecting rod 3 greater than switch pin, short connecting rod 5 and gate, in order that utilize the motional inertia of balance weight iron 1, make switch pin take off the groove late gate and can move forward and close fully, stop after meeting the dog screw of its top.The key issue of design is, at the closing gate state, when switchboard is run into switch pin, switch pin is in the mouth limit of switch board slot, by the vertical plane of the outer side bus of switch pin and the following end face of groove suitable gap is arranged, when gate was opened fully, switch pin one fixed in the groove.Bearing track 21 has all been designed in the both sides of gate and outside, contacts with gate by bearing 22, and the time be rolling friction so that make its motion, resistance is little when making the gate motion, and the switch flexibility and reliability is seen accompanying drawing 5.The both sides of gate and top are little limit angle steel outside, are a steel plate below, and the gate of mouth is arranged above the composition.The rubber guided plate is equipped with on the limit that the last edge break one of steel plate is parallel with the hopper bottom surface above.With long connecting rod 3 interference place, the limit of angle steel shortens.Accompanying drawing the 1, the 2nd, unlimited by the gate of elevator scoop 15, draw the position of the closing gate of storage bin hopper 19.

Accompanying drawing 6 is electrical schematics of lifter without cracking bucket, can be installed in the appropriate location of machine by its distribution board of making, also can be installed in the electric appliance box of complete set of equipments, does not draw in the accompanying drawing.Circuit explanation: X, Y, Z three-phase electricity make circuit obtain electricity through fuse, switch, because elevator when stopping, generally arrive the bottom charging position after elevator scoop 15 dischargings, therefore press the K2 button, the contactor C2 that control elevator scoop 15 is descended inhale with, motor reverses.Baffle A 20 on elevator scoop 15 is pushed down X2 limit switch 2, and its normally-closed contact is opened, relay C2 dead electricity, and elevator scoop 15 descends and stops.Simultaneously the normally opened contact of X2 limit switch 2 close and, open the time relay S2 of control C1, enter delay procedure, (according to 80% of full its volume of the material flow in the elevator scoop 15 is standard, adjust its delay value) the time-delay end, time relay S2 opens the relay C1 that motor 13 is just being changeed, and elevator scoop 15 rises, and X2 limit switch 2 resets.The baffle B 24 of opposite side is pushed down X1 limit switch 23 on elevator scoop 15, its normally-closed contact is opened, relay C1 dead electricity, elevator scoop 15 rises and stops, simultaneously the normally opened contact of X1 limit switch 23 close and, open time relay S1, enter delay procedure, (according to the material flow in the elevator scoop 15 is standard only, adjust its delay value) the time-delay end, time relay S1 opens the relay C2 that makes motor 13 counter-rotatings, and elevator scoop 15 descends, and X1 limit switch 23 resets.Press the said procedure perseveration, finish lifting work.The electrothermal relay R that is contained in the motor main circuit plays overload protective function.Electric current in major loop is excessive, and electrothermal relay R reacts, and the normally closed interlock of string electrothermal relay R in control loop disconnects, the relay electric-loss of working at that time, and motor stops.Also play a part such by stop button T.The normally closed interlock of the normally closed interlock of the contactor C2 of string in contactor C1 coil circuit and the contactor C1 of string in contactor C2 coil circuit all has been the interlock protection effect.Braking when having the normally open contact of contactor C1 in parallel and C2 to guarantee the motor outage in the electromagnet coil loop of electricity loss brake Z.

During lifter without cracking bucket work, the mass flow that enters storage bin hopper 19 is less than lifting capacity, owing to be a pipeful of lifting material, whole process stream is interrupted.Therefore, the machine that material enters in whole set of processing equipment will have enough big feed hopper, increases the storing amount, and is even to guarantee the machine materials flow.The percentage of damage of present bucket elevator reaches 10 ‰ what 3-5 ‰ had, and general complete set of rice milling equipment should avoid broken lifting operation that the 3-5 road will be arranged.As change lifter without cracking bucket into, can make the total percentage of damage of lifting reduce by 10 ‰.Percentage of damage descends, and milled rice rate just improves.Calculate by 100 tons of rice milling units of daily output, can have more nearly 1 ton of rice every day, economic benefit is considerable.

Claims

1. lifter without cracking bucket: it comprises power section, frame, elevator scoop, storage bin hopper, the electrical equipment control original paper, it is characterized in that: the motor (13) and the gearbox (12) that have electricity loss brake all are contained on the platform that shaped steel is welded into above the frame (18), motor (13) is passed to gearbox (12) to power, an end that is wrapped in the steel wire rope (14) on gearbox (12) rope sheave is fixed on elevator scoop (15) upper end, the roller (17) that elevator scoop (15) both sides are arranged up and down is contained in the corresponding groove of the upright channel-section steel of frame (18) two, storage bin hopper (19) is contained on the support of frame (18) below, the switchboard second (10) of control elevator scoop (15) upper lock gate opener is equipped with in appropriate location, frame (18) top, X1 limit switch (23) is equipped with in frame (18) one sides top, X2 limit switch (2) is equipped with in the opposite side below, and discharge bucket (8) is contained on the upper bracket of frame (18); Elevator scoop (15) has with frame (18) goes up the corresponding baffle plate of both sides limit switch, and the switchboard first (16) of control storage bin hopper (19) upper lock gate opener is arranged; Distribution board by X1 limit switch (23), X2 limit switch (2) control motor (13) running; having the motor of making (13) is just changeing and stops-delay time counter-rotating-counter-rotating and stop-delay time just to change; and motor (13) starts, stops, overload protection, the function of the dead electricity braking of motor (13).

2. lifter without cracking bucket according to claim 1 is characterized in that: above affiliated elevator scoop (15) and the storage bin hopper (19) is rectangle hole, the inclined-plane of the end for material is flowed out smoothly, the base on inclined-plane is the bottom of hopper outlet, with outlet cooperates gate and opener thereof arranged, the plane that four rolling (17) axis is formed makes the bucket capacity of both sides equate that planar central is passed through at steel wire rope (14) center.

3. lifter without cracking bucket according to claim 1 is characterized in that: affiliated hopper opener is by balance weight iron (1), long connecting rod (3), switch pin, short connecting rod (5), switchboard is formed, long connecting rod (3) is hinged on one side of bucket with pin, balance weight iron (1) is installed in an end of long connecting rod (3), the other end is hinged by an end of switch pin and short connecting rod (5), the other end and the gate of short connecting rod (5) are hinged, there is dog screw the top of gate, and balance weight iron (1) makes the moment of long connecting rod (3) generation greater than switch pin, the resultant couple that short connecting rod (5) and gate produce long connecting rod (3); The closing gate state, when switchboard was run into switch pin, switch pin was in the mouth limit of switch board slot, and by the vertical plane of the outer side bus of switch pin and the suitable gap of following end face of groove, when gate was opened fully, switch pin one fixed in the groove.

4. lifter without cracking bucket according to claim 1 is characterized in that: bearing track (21) has all been designed in the both sides and the outside of the gate of affiliated elevator scoop (15), storage bin hopper (19), is contacted with gate by bearing (22).

5. lifter without cracking bucket according to claim 1 is characterized in that: the both sides of affiliated gate and top are little limit angle steel outside, be a steel plate below, the gate of mouth is arranged above the composition, and the rubber guided plate is equipped with on the limit that the last edge break one of steel plate is parallel with the hopper bottom surface above.

6. lifter without cracking bucket according to claim 1 is characterized in that: affiliated roller (17) is installed on the hollow shaft by bearing, is fixed by bolts to elevator scoop (15) side.