CN214358996U

CN214358996U - Torsional rotary feeder capable of continuously and uniformly feeding

Info

Publication number: CN214358996U
Application number: CN202120174476.2U
Authority: CN
Inventors: 郭道讯; 李娇; 许健秋; 类延龙; 赵小涛
Original assignee: Shandong Zhangqiu Blower Co Ltd
Current assignee: Shandong Zhangqiu Blower Co Ltd
Priority date: 2021-01-21
Filing date: 2021-01-21
Publication date: 2021-10-08
Anticipated expiration: 2031-01-21
Also published as: CN214358996U8

Abstract

The utility model provides a twist rotatory feeder of leaf of continuous even feed, relates to rotatory material loading technical field for realize continuous feed. It includes the casing, rotates the impeller of installing in the casing, is equipped with the feed inlet in the upper end of casing, is equipped with the discharge gate at the lower extreme of casing, the impeller includes the pivot and sets up at the epaxial blade of pivot, characterized by, be the acute angle contained angle setting between blade and the pivot axis. The utility model provides a pair of continuous even feed turn round rotatory feeder of leaf, under the condition of low-speed feed, it is more obvious to arrange the material discontinuity. For a material with good flowability, the material discharge characteristic is basically a horizontal straight line. When discharging simultaneously when more than two impeller silos, the discharge characteristic between the impeller silo has the superposition of partial coincidence, and to the material that mobility is not good, the fluctuation of feed volume is alleviated to this kind of stack, realizes continuous even unloading.

Description

Torsional rotary feeder capable of continuously and uniformly feeding

Technical Field

The utility model belongs to the technical field of rotatory material loading technique and specifically relates to a rotatory feeder of torsional leaf of continuous even feed.

Background

The rotary feeder is also called a rotary valve or an air seal machine, has air locking performance and can resist certain pressure difference. The rotary feeder can carry out quantitative material conveying, and is a key technical device in a pneumatic conveying system. The structure of the rotary feeder is generally composed of a shell, an end cover, an impeller and the like, when the rotary feeder works, the impeller rotates in the cylindrical shell, materials fall into spaces between blades arranged on the impeller from an upper hopper under the action of self gravity, the materials are discharged to a discharge port arranged at the lower part of the shell along with the rotation of the impeller and are discharged from the discharge port, or a pipeline is connected to the lower part of the discharge port, the falling materials are mixed with air flow in the pipeline and reach a destination through the pipeline under the action of pressure and the air flow.

In the feeding process of the existing rotary feeder, as the discharge hole is generally square, the discharged materials are discontinuous, and the lower the rotating speed is, the more obvious the discontinuity is. During the high speed revolution, the intervals are short and can be generally regarded as continuous feeding. When the rotary machine rotates at a low speed, the intermittent intervals are large, and the requirement of a user on the uniformity of feeding cannot be met. The working condition that continuous and uniform feeding is needed is mostly realized by adopting the combination of a spiral feeder or a disk feeder and a rotary valve at present, the spiral feeder or the disk feeder completes continuous and uniform feeding, the rotary feeder completes the air locking function, the combination of the two devices has high cost and low reliability, and therefore, the design and development of a product which not only has the air locking capacity, but also can continuously and uniformly feed is necessary.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a rotatory feeder of torsional blade of continuous even feed for realize continuous feed.

The utility model provides a technical scheme that its technical problem adopted is: the utility model provides a rotatory feeder of torsional blade of continuous even feed, it includes the casing, rotates the impeller of installing in the casing, is equipped with the feed inlet in the upper end of casing, is equipped with the discharge gate at the lower extreme of casing, the impeller includes the pivot and sets up at the epaxial blade of commentaries on classics, characterized by, be the acute angle contained angle setting between blade and the pivot axis.

Furthermore, an adjusting mechanism for adjusting the included angle between the blade and the axis of the rotating shaft is arranged on the shell.

Furthermore, a screw rod is arranged on the side wall of the blade and is in threaded connection with the middle of the rotating shaft.

Furthermore, the middle part of the rotating shaft is a regular polygon-shaped installation part, each side wall of the installation part is provided with a threaded hole, and the screw rod is in threaded connection with the threaded holes.

Furthermore, the adjusting mechanism comprises a driving gear fixed on the screw rod, an adjusting gear arranged in the inner cavity of the rotating shaft, an adjusting motor driving the adjusting gear, and an adjusting cylinder driving the adjusting motor to move in the inner cavity of the rotating shaft, and the adjusting gear can drive the screw rod to rotate after being meshed with the driving gear.

Furthermore, a tooth groove is formed in the edge of the adjusting gear, a guide groove is formed in the end face, facing the driving gear, of the adjusting gear, the guide groove is a conical groove, and the small end of the guide groove is communicated with the tooth groove.

Furthermore, a spring plate is fixed on the output shaft of the adjusting motor, a spring is arranged between the spring plate and the adjusting gear, and the adjusting gear and the output shaft of the adjusting motor are relatively fixed along the circumferential direction and movably arranged along the axial direction.

The utility model has the advantages that: the utility model provides a pair of continuous even feed turn round rotatory feeder of leaf, under the condition of low-speed feed, it is more obvious to arrange the material discontinuity. For a material with good flowability, the material discharge characteristic is basically a horizontal straight line. When discharging simultaneously when more than two impeller silos, the discharge characteristic between the impeller silo has the superposition of partial coincidence, and to the material that mobility is not good, the fluctuation of feed volume is alleviated to this kind of stack, realizes continuous even unloading.

Drawings

Fig. 1 is a half sectional view of the present invention;

FIG. 2 is a partial view taken from the direction A of FIG. 1;

FIG. 3 is a side view of the impeller;

FIG. 4 is a schematic view of the position of the impeller and the discharge port;

FIG. 5 is a schematic view of the assembly of the adjustment mechanism with the impeller;

FIG. 6 is a three-dimensional view of the spindle;

FIG. 7 is a front view of the spindle;

FIG. 8 is a schematic view of a blade;

FIG. 9 is a schematic view of the assembly of the spindle and the adjustment mechanism;

FIG. 10 is a schematic view of the assembly of the blade and the drive gear;

FIG. 11 is a schematic view of an adjustment gear;

FIG. 12 is a schematic view of the mounting of the adjustment gear and the adjustment motor;

in the figure: 1 shell, 2 impellers, 21 blades, 211 screw rods, 212 driving gears, 22 rotating shafts, 221 installation parts, 222 threaded holes, 23 baffles, 3 feed inlets, 4 discharge outlets, 5 end covers, 6 adjusting gears, 61 tooth grooves, 62 guide grooves, 7 adjusting motors, 71 spring plates, 72 springs and 8 adjusting cylinders.

Detailed Description

As shown in fig. 1 to 11, the present invention mainly includes a housing 1, an impeller 2, an end cover 5 and an adjusting mechanism, and the present invention will be described in detail with reference to the accompanying drawings.

As shown in fig. 1 and 2, the casing 1 is a main body of the present invention, a feed inlet 3 is provided at the upper end of the casing, a discharge outlet 4 is provided at the lower end of the casing, and the feed inlet, the discharge outlet and the inner cavity of the casing are communicated together. The discharge port can be triangular, circular, quadrilateral, trapezoidal and the like.

Be equipped with impeller 2 in the inboard of casing, the impeller includes pivot 22, fixes a plurality of blades 21 on the pivot outer wall, forms the silo between every two adjacent blades, and the pivot is passed through the bearing and is installed on the casing, and both ends install end cover 5 through the bolt about the casing to the realization is to the sealed of both ends about the casing. One end of the rotating shaft extends out of the shell so as to be convenient to be installed with the motor. The blades are arranged on the rotating shaft in an inclined mode, and as shown in figure 1, the blades form an acute included angle with the axis of the rotating shaft. In the prior art, the axis of the rotating shaft is usually located in the plane of the blades, i.e. the blades are arranged along the radial direction of the rotating shaft. The utility model discloses a relative pivot axis slope of blade sets up, through setting up reasonable blade density, has two blades all the time at impeller pivoted in-process to be in discharge gate department, and then makes the material ejection of compact simultaneously in two adjacent silos, and then ensures continuous feed. As shown in fig. 3, baffles 23 fixedly connected to the rotating shaft may be further disposed on two sides of the blade, the blade is disposed between the two baffles, and the arrangement of the baffles has a protective effect on the stability and shape maintenance of the blade. Turning to the lowermost vane, as shown in fig. 4, the first end of the vane reaches the discharge port first and the second end of the vane reaches the discharge port later. The intersection point of the first end of the blade and the rotating shaft and the intersection point of the second end of the blade and the rotating shaft are located on different bus bars of the rotating shaft.

During operation, when the impeller silo is rotatory through discharge gate 4, the interior material of impeller silo gets into the discharge gate by the first end of blade 21 step by step earlier, and the material is evenly discharged in succession, and the material that reaches the second end of blade 21 is through discharge gate 4 (the first end of blade reaches discharge gate department earlier, and the discharge gate department is reachd behind the blade second end), accomplishes the process of unloading of this corresponding silo once. In this process, along with the rotation of impeller, behind the material discharge part in this impeller silo, hou mian silo begins and the discharge gate intercommunication, and get into discharge gate 4 through the first end of blade 21 and begin the ejection of compact, when the front side silo is arranged the material gradually this moment, the rear side silo also begins to arrange the material gradually, form the simultaneous ejection of compact of more than two silos, silo unloading links together around will through this kind of stack mode, make the feed more even, even also can realize continuous even unloading to the material that mobility is not good like this.

As shown in fig. 5, an adjusting mechanism is further provided on the housing to adjust the inclination angle of the blades. The adjusting mechanism comprises an adjusting gear 6, an adjusting motor 7 for driving the adjusting gear to rotate, and an adjusting cylinder 8 for driving the adjusting motor to move along the axial direction of the rotating shaft, at the moment, as shown in fig. 6 and 7, the rotating shaft is of a hollow structure, two ends of the rotating shaft 22 are circular, the middle of the rotating shaft is an installation part 221 of a regular polygon structure, a threaded hole 222 is formed in the side wall of the installation part of the rotating shaft, and the threaded hole is located in the center of each side face of the installation part. As shown in fig. 8, a screw 211 is fixed to a side wall of the blade, and the screw is screwed into the screw hole. As shown in fig. 10, a drive gear 212 is fixed to the screw, and the drive gear is disposed inside the rotating shaft. As shown in fig. 11, a plurality of tooth grooves 61 uniformly arranged along the circumferential direction are arranged at the edge position of the adjusting gear, a guide groove 62 is arranged on the end surface of the adjusting gear, the guide groove is a conical groove, the small end of the guide groove is communicated with the tooth grooves, and one end of the adjusting gear, which is provided with the guide groove, faces the driving gear. The adjusting cylinder is fixed on the side wall of the shell, when a piston rod of the adjusting cylinder extends out, the adjusting gear can move in the inner cavity of the rotating shaft until contacting with the driving gear, then the adjusting gear is driven to rotate by the adjusting motor, until teeth on the driving gear slide into tooth grooves along the guide grooves, the adjusting gear can be driven to rotate by the adjusting motor at the moment, the rotation of the driving gear is further driven, the inclination angle of the adjusting blade relative to the axis of the rotating shaft is further adjusted, the inclination angle of the blade is different, the time interval that the first end and the second end of the blade successively enter the discharge port under the same rotating speed is different, and the discharging time is further different. When the inclination angles of the blades are different, the unloading time of the material in the material groove is different. After the inclination angle of the blade is adjusted, the adjusting gear is reset under the reverse action of the adjusting cylinder. A spring plate 71 can be fixed at the output end of the adjusting motor, a spring 72 is arranged between the adjusting gear and the spring plate, the adjusting gear and the output shaft of the adjusting motor are relatively fixed along the circumferential direction, and the adjusting gear is relatively movably arranged along the axial direction of the output shaft of the adjusting motor. Therefore, the adjusting gear can be contacted with the driving gear and pressed tightly under the action of the adjusting cylinder, then the adjusting motor rotates to drive the adjusting gear to rotate until the teeth of the driving gear are aligned with the tooth grooves of the adjusting gear, and at the moment, under the action of the spring 72, the teeth of the driving gear stretch into the tooth grooves of the adjusting gear.

In the case of low-speed feeding, the discharge discontinuity is more pronounced. For a material with good flowability, the material discharge characteristic is basically a horizontal straight line. When discharging simultaneously when more than two impeller silos, the discharge characteristic between the impeller silo has the superposition of partial coincidence, and to the material that mobility is not good, the fluctuation of feed volume is alleviated to this kind of stack, realizes continuous even unloading.

Claims

1. The utility model provides a rotatory feeder of torsional blade of continuous even feed, it includes the casing, rotates the impeller of installing in the casing, is equipped with the feed inlet in the upper end of casing, is equipped with the discharge gate at the lower extreme of casing, the impeller includes the pivot and sets up at the epaxial blade of commentaries on classics, characterized by, be the acute angle contained angle setting between blade and the pivot axis, be equipped with the adjustment mechanism who is used for adjusting contained angle between blade and the pivot axis on the casing.

2. A continuous uniform feed twisted blade rotary feeder as claimed in claim 1, wherein a screw is provided on the side wall of the blade, and the screw is threadedly engaged with the middle of the rotary shaft.

3. A continuous and uniform feed twisting vane rotary feeder as claimed in claim 2, in which the central portion of the shaft is a regular polygonal mounting portion, threaded holes are provided in each side wall of the mounting portion, and the screw is threadedly engaged with the threaded holes.

4. A continuous and uniform feed twisting rotary feeder as claimed in claim 3, wherein the adjustment mechanism comprises a drive gear fixed to the screw, an adjustment gear disposed in the interior of the shaft, an adjustment motor for driving the adjustment gear, and an adjustment cylinder for driving the adjustment motor to move in the interior of the shaft, the adjustment gear engaging the drive gear to drive the screw to rotate.

5. A continuous and uniform feed twisting blade rotary feeder as claimed in claim 4, wherein the regulating gear has a toothed groove at its edge, and a guide groove is formed in an end surface of the regulating gear facing the driving gear, the guide groove being a tapered groove, and a small end of the guide groove communicating with the toothed groove.

6. A continuous and uniform feed twisting vane rotary feeder as claimed in claim 4, wherein a spring plate is fixed to the output shaft of the adjustment motor, a spring is provided between the spring plate and the adjustment gear, and the adjustment gear and the output shaft of the adjustment motor are relatively fixed in the circumferential direction and are movably provided in the axial direction.