CN2350118Y

CN2350118Y - Powder material metering feeding device

Info

Publication number: CN2350118Y
Application number: CN 98240773
Authority: CN
Inventors: 齐学工; 关文富; 李彪
Original assignee: Individual
Current assignee: Individual
Priority date: 1998-09-14
Filing date: 1998-09-14
Publication date: 1999-11-24
Anticipated expiration: 2008-09-14

Abstract

The utility model provides a powder material metering feeding device, comprising a metering discharging mechanism composed of a motor vertically arranged above a material box and directly connected with a main shaft whose lower part is provided with a spiral body, a few tooth-difference planetary driving mechanism composed of a planetary wheel eccentrically assembled on the main shaft and fixed tooth rings and a bridging-proof slow-speed stirring mechanism composed of a pin shaft extended into a wheel disc of the planetary wheel and connected with a scraping plate in the material box through a hollow shaft and a core disc. The utility model adopts a few tooth-difference planetary driving structure to realize the goal that one machine has the same shaft and two speeds so that the powder material metering feeding device has compact structure and small size, and the material discharging accuracy and the stable running performance for a long time of the powder material metering feeding device are enhanced.

Description

Powder material metering adding set

The utility model relates to the measuring equipment that has automatic feeding machanism, is a kind of powder material metering adding set specifically.

Powder material metering interpolation equipment is widely used on the industry automatic production lines such as food, medicine, feed, chemical industry, pottery, printing and dyeing.Existing same device, the structure that the main shaft that general employing has the load displacing screw body cooperates with the bucket shape hopper, though this structure can realize powder material is measured the purpose of interpolation, but because powder material is sticking puckery, usually stick on the hopper wall, influence material and enter swimmingly in the load displacing screw body, cause the discharge inequality, reduced the measuring accuracy of its interpolation.For solving the attached wall problem of material, prior art adopts scraping plate mechanism is set in hopper, utilize striking off of scraper plate to be used for removing the powder material that sticks on the hopper wall, but this mechanism adopts outside sprocket wheel or gear drive scraping plate mechanism, formed one with respect to discharge mechanism and overlapped independently transmission system, make the structure of whole metering adding set be tending towards complicated, equipment volume increases, the I﹠ M difficulty.

The purpose of this utility model is at the problems referred to above, and provide a kind of powder material that utilizes small Tooth Number Difference Planetary Transmission to realize coaxial discharge mechanism of a machine and scraping plate mechanism double speed to measure adding set, with under the prerequisite that makes designs simplification, volume-diminished and convenient for assembly and maintenance, the running steady in a long-term of realization equipment improves the accuracy that metering adds materials.

The technical scheme that realizes above-mentioned purpose is: a kind of powder material metering adding set, it comprises the perpendicular motor of putting, be connected with the perpendicular main shaft of putting below the motor, the bottom of this main shaft is provided with the load displacing screw body, the bottom that is engaged in main shaft with the load displacing screw body is provided with conical hopper, and material bin is installed above hopper; Its perpendicular main shaft of putting is provided with an eccentric shaft part, is equipped with a planet gear on this off-centre shaft part, this gear with one and main shaft concentric and the ring gear that is fixed on the bearing block mesh; In hopper, be provided with the shape scraper plate consistent with the hopper inner wall shape, its scraper plate connects with a hollow sleeve on placing main shaft through the scraper plate cartridge, this hollow sleeve is assemblied on the block bearing, upper end at cover is provided with end plate, be fixed with the perpendicular bearing pin of putting on its end plate, the upper end of this bearing pin is stretched in the pin shaft hole of offering on the planetary gear wheel disc.

The technical solution of the utility model also comprises: to adding the axle that is fixedly connected between main shaft upper end, upper end one coupling sleeve and the motor output shaft of this coupling spindle are fixedly connected at motor output shaft, spool the lower end through threaded engagement and main shaft direct connection; Its two ends that are fixedly connected axle are provided with a rank, and are respectively fitted with location bearing, and two location bearings are with in the bearing pilot hole that is assemblied in the bearing housing that is fixed between motor and the bearing block cover plate.

The utility model is compared with existing same category of device, has following advantage:

1, owing to adopts fewer differential teeth planetary wheel mechanism transmission screeding device, realized that coaxial double speed drives convey materials and anti-arch stirring, make whole apparatus structure compactness, running steadily, both solved the problem that runs well because of the sticking wall knot of material arch obstruction equipment, the accuracy of discharge metering is improved greatly.

2, transmission mechanism is designed to three bearing fixing main axle structures, and is both convenient for assembly, can guarantee the spirochetal concentricity in main shaft bottom again.

Accompanying drawing is this powder material metering adding set structure master cutaway view.

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

Provide as accompanying drawing, this powder material metering adding set has a perpendicular vertical machine 1 of putting, this motor output shaft is provided with a coupling sleeve 11, and through key be fixedly connected the axle 12, be fixedly connected the lower end of axle by threaded engagement direct connection main shaft 20, and the bottom of its main shaft 20 is provided with the load displacing screw body 21 of up big and down small varying pitch.Hopper 10 is the conical funnel shape, is fixedly mounted on the support 19, and its lower end is cylinder barrel shaped, and cooperates the outlet of formation discharge with the load displacing screw body.The upper end fixed installation bearing block 6 and the material bin 14 of hopper, the upper end of bearing block 6 adds cover plate 13.Bearing housing 2 places between motor 1 and the cover plate 13, and fixes with motor flange dish and cover plate through bolt respectively and connect.Two location bearings 3 are assemblied on the axle 12 that is fixedly connected, and its inner ring limits the position by the axle rank at two ends, and the outer ring of two location bearings 3 is done to cooperate with the bearing pilot hole in the bearing housing 2, and is fixed by positioning sleeve that is provided with in the pilot hole and bearing (ball) cover.Main shaft 20 is provided with an eccentric shaft part 17, and is equipped with a planet gear 5 on this off-centre shaft part, gear 5 and one and main shaft 20 concentrics and the ring gear 4 that fixedly is assemblied on the bearing block 6 mesh.Scraper plate 9 is symmetrical arranged, and its shape is consistent with hopper 10 inner wall shape, and the upper end of scraper plate 9 is provided with scraper plate cartridge 8, this cartridge with place hollow sleeve 18 on the main shaft through thread connection.Hollow sleeve 18 is assemblied on the block bearing 7, is provided with end plate 16 in the upper end of cover, is symmetrically fixed with the perpendicular bearing pin of putting 15 on its end plate, and the upper end of bearing pin 15 is stretched on planetary gear 5 wheel discs in the corresponding pin shaft hole of offering.

During the work of this device, motor 1 output shaft drives main shaft 20 rotations through coupling sleeve 11, the axle 12 that is fixedly connected, and through the conveyor screw 21 of main shaft bottom and cooperating of hopper 10 cylindrical shells outlet, realize the equal and quantitative discharge: and the eccentric planetary gear 5 that is installed on the main shaft is done eccentric engagement with the ring gear 4 that is fixed on the bearing block 6, constitute the fewer differential teeth planetary wheel drive mechanism, make scraper plate 9 make reverse slow rotation by bearing pin 15, hollow shaft 18 and cartridge 8 again, thereby play the stirring of powder material and the effect of perisporium scraper in the hopper 10.

Claims

1, a kind of powder material metering adding set, it comprises the perpendicular motor of putting (1), be connected with the perpendicular main shaft of putting (20) below the motor (1), the bottom of this main shaft is provided with load displacing screw body (21), the bottom that is engaged in main shaft with the load displacing screw body is provided with conical hopper (10), and material bin (14) is installed above hopper; It is characterized in that main shaft (20) is provided with an eccentric shaft part (17), on this off-centre shaft part, be equipped with a planet gear (5), this gear (5) and one and main shaft (20) concentric and be fixed in ring gear (4) engagement on the bearing block (6); In hopper (10), be provided with the shape scraper plate consistent (9) with the hopper inner wall shape, its scraper plate connects with a hollow sleeve (18) on placing main shaft through scraper plate cartridge (8), this hollow sleeve is assemblied on the block bearing (7), upper end at cover is provided with end plate (16), be fixed with the perpendicular bearing pin of putting (15) on its end plate, the upper end of this bearing pin (15) is stretched in the pin shaft hole of offering on planetary gear (5) wheel disc.

2, powder material metering adding set according to claim 1, it is characterized in that: at motor (1) output shaft to adding the axle (12) that is fixedly connected between main shaft (20) upper end, upper end one coupling sleeve (11) of this axle (12) is fixedly connected with motor output shaft, and the lower end of axle is through threaded engagement and main shaft (20) direct connection; Its two ends that are fixedly connected axle (12) are provided with a rank, and are respectively fitted with location bearing (3), and two location bearings (3) are with in the bearing pilot hole in assembling one bearing housing (2) that is fixed between motor (1) and the bearing block cover plate (13).