CN2388593Y

CN2388593Y - Weighing solid flowmeter

Info

Publication number: CN2388593Y
Application number: CN 99228702
Authority: CN
Inventors: 马庆生
Original assignee: Individual
Current assignee: Individual
Priority date: 1999-06-21
Filing date: 1999-06-21
Publication date: 2000-07-19
Anticipated expiration: 2009-06-21

Abstract

The utility model relates to a weighing type solid flow machine, composed of a bracket, a feeding hopper, a pressure sensor and a driving mechanism which is driven by a motor. The utility model is characterized in that an upper driving shaft and a lower driving shaft which are fixed on the bracket and a door pivot are respectively penetrate the feeding hopper and the inner part of a weighing hopper, both ends of the door pivot are fixed on the upper end of a discharge gate side plate, an arc-shaped gate bottom plate is connected with the lower end of the discharge gate side plate, the both ends of the upper driving shaft and the lower driving shaft are respectively fixedly provided with an upper cam wheel and a lower cam wheel which are movably contacted with a pulley wheel fixed on the discharge gate side plate, one end of the same side of the upper driving shaft and the lower driving shaft is fixedly provided with an upper chain wheel and a lower chain wheel, and the chain wheels are connected with a motor shaft wheel by chains. The utility model has the advantages of high transmission accuracy, exact metering, etc.

Description

The Weighing type solid flowmeter

The utility model relates to a kind of solid flowmeter, exactly is a kind of Weighing type solid flowmeter.

Existing Weighing type solid flowmeter because the Dump gate of its feeder hopper and bucket adopts pneumatic control, had both needed to be provided with in addition air-flow, increased equipment investment; Because Dump gate is used frequently, cause the components and parts of this control device fragile again; And measure not accurate enoughly, cumulative errors are big.

The purpose of this utility model be to provide a kind of improved, can carry out the flow of powdery, granular solids material continuously, the accurate Weighing type solid flowmeter of metering.

Technical solution of the present utility model is: a kind of Weighing type solid flowmeter, form by support, feeder hopper, pressure transducer with by motor-driven gear train, it is characterized in that: be penetrated with two ends in described feeder hopper and the bucket respectively and be fixed on upper and lower transmission shaft on the support of the left and right sides and two ends and be fixed on door-hinge in the bearing box of installing Dump gate side plate upper end, the lower end of Dump gate side plate is connected with the arc-shaped door base plate; The two ends of last lower drive shaft be fixed with respectively be fixed on the Dump gate side plate on moving following, time cam that contact of pulley; Homonymy one end of upper and lower transmission shaft is fixed with upper and lower sprocket wheel, and upper and lower sprocket wheel is connected with the motor arbor wheel by chain; The axle head of last transmission shaft also be fixed with and be located at feeder hopper top near the corresponding block of switch.

The utility model is described in further detail below in conjunction with drawings and Examples.

Fig. 1 is the utility model structural representation;

Fig. 2 is the A-A cut-open view of figure.

Referring to Fig. 1, Fig. 2.The top of support 2 is feeder hopper 8 fixedly, and the middle part is provided with Floating bucket 7, and the both sides, front and back of bucket 7 are protruding rest pad 5, and rest pad 5 places on the termination of pressure transducer 4, and the other end of pressure transducer 4 connects computing machine.The bottom of support 2 is fixed with hopper 1.

Be respectively equipped with dividing plate in feeder hopper 8 and the bucket 7, break it into two, make two charging apertures of its each self-forming, two material stock chambeies and two discharge ports, the discharge port bottom is respectively equipped with Dump gate 10 and 17, and Dump gate 10 and 17 is made up of arc-shaped door base plate, side plate and door-hinge 36,25.The two ends of door-hinge 36,25 pass from the forward and backward material stock chamber of feeder hopper 8 with bucket 7 respectively, are fixed in the bearing box of installing Dump gate 10,17 side plates upper end 35 and 24.Be fixed with spring 9 on the shell of bearing box 35, the other end of spring 9 is fixed on the feeder hopper 8.Also be fixed with pulley 11 and 16 on the side plate of Dump gate 10,17.

Also be penetrated with upper and lower transmission shaft 29 and 19 respectively in feeder hopper 8 and the bucket 7, upper and lower transmission shaft 29 and 19 places the lower end of Dump gate door-hinge 36,25, and its termination is fixed in the bearing on the left and right sides support 2.Upper and lower transmission shaft 29 and 19 two ends are fixed with upper and lower cam 28 and 18 respectively, this upper and lower cam 28 with 18 be fixed with Dump gate 10,17 side plates on pulley 11,16 can realize moving the contact, upper and lower cam 28 and 18 phase differential are 180 °.Upper and lower transmission shaft 29 is fixed with the identical upper and lower sprocket wheel 37 and 40 of the number of teeth with 19 homonymies, one end, this sprocket wheel 37 is connected with motor 45 arbor wheels 43 by chain 39 with 40, the axle head of last transmission shaft 29 also be provided with and be fixed on the feeder hopper 8 near switch 46 corresponding blocks 30.Insert computing machine near switch 46 by lead-in wire.

Its principle of work: electrical power turns clockwise, drive by chain 39, lower sprocket 37 and 40 rotates synchronously, be fixed on, on on the lower drive shaft 29 and 19, following cam 28 and 18 also rotates synchronously, because on, 180 ° of following cam 28 and 18 phase differential, so when the pulley 11 on the front side Dump gate side plate of overhead cam 28 jacking feeder hoppers 8, following cam 18 is first-class to press down pulley 16 on the rear side Dump gate side plate of bucket 7, on, following cam 28 and 18 drives the material stock chamber, front side of feeder hopper 8 by pulley 11 and 16 respectively and the Dump gate 10 and 17 in bucket 7 rear side material stock chambeies is opened, discharging.This moment, the Dump gate in feeder hopper 8 rear side material stock chambeies and material stock chamber, bucket 7 front side was then closed, and material begins charging from charging aperture.When upper and lower transmission shaft 29 and 19 turns clockwise 45, upper and lower cam 28 and 18 breaks away from pulley 11 and 16 respectively, Dump gate 10 begins to close feeder hopper 8 front side discharge ports under the effect of spring 9,17 discharge ports of closing this rear side under action of inertia of the Dump gate of bucket 7 rear sides.After upper and lower transmission shaft 29 and 19 changeed 45 again, the Dump gate 10 and 17 of feeder hopper 8 front side discharge ports and bucket rear side discharge port was closed fully.Upper and lower transmission shaft 29 and 19 changes 45 ° again, and four Dump gate all are in closed condition, and this moment, block 30 entered near switch 46 measurement ranges, sends signal to the computing machine counting of weighing near switch 46.On, lower drive shaft 29 and 19 changes 45 again, overhead cam 28 touches the pulley 11 on feeder hopper 8 rear side Dump gate 10 side plates again, the pulley 16 that following cam 18 also touches on bucket 7 front side Dump gate 17 side plates simultaneously, in the event, following cam 29,19 respectively by pulley 11,16 open feeder hopper 8 rear side Dump gate 10 and bucket front side Dump gate 17 again, discharging, and this moment, feeder hopper 8 front side Dump gate 10 and 17 of bucket 7 rear side Dump gate are in closed condition, and material begins respectively to repeat above-mentioned action to feeder hopper material stock chamber, 8 front side and bucket 7 rear side material stock chamber chargings by charging aperture.Computing machine is then weighed continuously, is counted and shows accumulated result.

For preventing mistake meter or wrong meter, in computing machine, be provided with the device of automatic control motor power supply.When the charging aperture material of feeder hopper stops expecting to reach two minutes, but the power supply of this device automatic cut-off motor is avoided out the sky machine and wrong meter or mistake meter.When material when the charging aperture of feeder hopper recovers feeding, this device can engage the power supply of motor automatically, works on.

Compared with prior art, the utlity model has transmission accuracy height, original paper not fragile, can connect Continue charging, weigh, count, show and can avoid out the advantages such as sky machine, realize the purpose of accurate measurement, suitable Be used for the industries such as grain and oil, medicine, chemical fertilizer to the metering of powdery, granular solids mass flow.

Claims

1. Weighing type solid flowmeter, form by support (2), feeder hopper (8), bucket (7), pressure transducer (4) with by the gear train that motor (45) drives, it is characterized in that: be penetrated with two ends in described feeder hopper (8) and the bucket (7) respectively and be fixed on upper and lower transmission shaft (29), (19) and two ends on the and arranged on left and right sides support (2) and be fixed on bearing box (35), (24) interior discharging door-hinge (35), (36) that Dump gate (10), (17) side plate upper end are installed, the lower end of Dump gate (10), (17) side plate is connected with the arc-shaped door base plate; The two ends of upper and lower transmission shaft (29), (19) be fixed with respectively be fixed on Dump gate (10), (17) side plate on moving upper and lower cam (28), (18) that contact of pulley (11), (16); Homonymy one end of upper and lower transmission shaft (29), (19) is fixed with upper and lower sprocket wheel (37), (40), and upper and lower sprocket wheel (37), (40) are connected with the arbor wheel (43) of motor (45) by chain (39); The axle head of last transmission shaft also be fixed with and be located at feeder hopper (8) top near the corresponding block of switch (46) (30).

2. a kind of Weighing type solid flowmeter according to claim 1, it is characterized in that: be connected with spring (9) on the shell of Dump gate (10) the side plate upper end bearing box (35) of described feeder hopper (8), the other end of spring (9) is fixed on the outside of feeder hopper (8).

3. a kind of Weighing type solid flowmeter according to claim 1 is characterized in that: described upper and lower sprocket wheel (37), (40) number of teeth are identical.

4. a kind of Weighing type solid flowmeter according to claim 1 is characterized in that: the phase differential of described upper and lower cam (28), (18) is 180 °.