RU1807971C - Screw conveyer - Google Patents

Abstract

The conveyor is designed to transport bulk materials with helical spirals. SUMMARY OF THE INVENTION: screw; The howling conveyor contains loading and unloading lines, parallel to the shafts of which an intermediate shaft is installed in the transfer branch pipe. The free ends of the latter are located outside the discharge pipe and are connected to the free ends of the shafts of the loading and unloading lines. 12 s.p. f-ly, 14 ill.

Description

The invention relates to hoisting and transport machinery and can be used to transport bulk materials with helical spirals.

The purpose of the invention is to increase the reliability of the operation of the conveyor and simplify the design of the drive.

The goal is achieved due to the fact that a screw conveyor comprising a drive, loading and unloading lines made of casings, shafts and helical spirals, a reloading branch pipe, is equipped with an intermediate shaft mounted parallel to the shafts of the loading and unloading lines, the ends of which are located outside the reloading branch pipe and connected to the free ends of the shafts of the loading and unloading lines. The intermediate shaft may be located in the transfer port.

A screw spiral or beater can be mounted on the countershaft.

H On the intermediate shaft can also be installed a spray connected to the line, the fluid supply.

To reduce the overall dimensions of the conveyor, the axis of the intermediate shaft is placed behind a plane passing through the axis of the shafts of the loading and unloading lines, or the outer diameter of the helical spiral; mounted on the intermediate shaft, they are made smaller than the diameter of the spirals located in the loading and unloading line x.

To improve the loading of the discharge line, the beater blades are made arcuate, and the convex arches of the blades are directed in the direction of rotation of the beater.,

Brackets can be installed on the body of the transfer port by means of which the conveyor is aggregated with the hinged system of the machine-tractor unit.

The shaft of the unloading line can be connected to the output shaft of the gearbox, and the input shaft of the gearbox is connected via a cardan drive to the power take-off shaft of the machine-tractor unit.

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The shaft of the discharge line can be connected to the shaft of the hydraulic motor. The intermediate shaft may be the output shaft of the gearbox or the rotor of the electric motor .......-.

As a result of the installation of a helical spiral or beater on the intermediate shaft, the transported material is reliably gripped by turns of the unloading spiral.

 . In FIG. 1 shows a screw conveyor; in FIG. 2 is a section AA in FIG. 1; Fig. 3 - a screw conveyor with a helical spiral mounted on the intermediate shaft and an axis of the intermediate shaft located behind a plane passing through the axis of the shafts of the loading and unloading lines; in FIG. section BB in FIG. 3; in FIG. 5 - screw conveyor with a beater mounted on the intermediate shaft; in Fig.6 section BB in Fig. 5; in FIG. 7 - a screw conveyor with a spray mounted on the intermediate shaft connected to the shaft of the discharge line with the shaft of the hydraulic motor; in FIG. 8 is a section GG in FIG. 7; in FIG. 9 shows aggregation of a conveyor with a hinged system of a machine-tractor unit, side view; in FIG. 10 - same, top view; in FIG. 11 - placement of the intermediate shaft in the gear housing, side view; in FIG. 12 - same, top view; in FIG. 13 - placement of the intermediate shaft in the rotor of the electric motor, side view; in FIG. 14 - same, top view.

The screw conveyor $ p contains drive 1 (Fig. 1). the output shaft of which is connected to the shaft 2 of the discharge screw spiral 3 located in the casing 4. A loading pipe is located vertically above the discharge pipe, consisting of a casing 5, a screw spiral b and a shaft 7. The intake sections of the loading and discharge pipes are interconnected by means of a discharge pipe 8. In the transfer branch pipe, an intermediate shaft 9 is installed parallel to the shafts 2 and 7 of the discharge and loading lines, the ends of which are located outside the case of the transfer branch pipe 8 and ineny the free ends of the shafts 2 and 7. On the intermediate shaft 9 on both sides between the GCO ramie sprocket set 10 and 11 which are connected by a chain transmission with sprockets 13 and 12, loading and unloading lines.

To ensure reliable grip of the transported material, a helical spiral 14 (Fig. 3) or a beater 15 (Fig. 5) can be installed on the intermediate shaft 9.

,. In order to expand the functionality of the screw conveyor, an atomizer 16 (Fig. 7) is installed on the intermediate shaft 9, which is connected via channels (not shown in the figures) made in the shaft 9 by means of a sleeve 17, pipe 18. valve 19 with tank 20. With this design, the conveyor can operate as a grain dresser or mixer, ,,;

To reduce the overall dimension of the conveyor, as well as to increase the capture efficiency of the transported material when installed on the intermediate shaft

9, a helical spiral 14 (Fig. 3) or a beater 15 (Fig. 5), the axis of the intermediate shaft 9 (Fig. 4) is placed behind a plane passing through the axes of the shafts 2 and 7 of the discharge and loading lines. Also to reduce

of overall dimensions of the conveyor, the outer diameter d of the helical spiral 14 mounted on the intermediate shaft 9 is smaller than the diameters D and DI of the spirals 6 and 3 located in the loading and

discharge line x.

In order to increase the capture efficiency of the transported material, the turns of the discharge spiral 3 of the beater blade 15 (Fig. 6) are made arcuate, with convex arcs directed towards the rotation of the beater 15.

To expand the functionality on the body of the transfer pipe 8 (Fig. 9) installed lower 21 and

upper 22 brackets by means of which the conveyor is connected to the central 23 and longitudinal 24 rods of the hinged system of the machine-tractor unit 25..

The shaft 2 of the discharge line is connected to the output shaft 26 of the gearbox 27. In this case, the output shaft of the gearbox 27 is connected via a cardan gear 28 to the power take-off shaft (not shown in the figures) of the machine-tractor unit 25.

To smoothly adjust the speed of rotation of the conveyor shafts, the shaft 2 of the discharge line can be connected to the shaft of the hydraulic motor 29 (Fig. 7).

To simplify drive design

the intermediate shaft 9 (Fig. 11, 12) may be the output shaft of the gearbox 27 or the rotor of the electric motor 30 (Fig. 13.14).

Works screw conveyor as follows.

When you turn on the drive 1 (Fig. Rotates the shaft 2 and the spiral 3 in the casing 4. By means of a chain transmission (sprockets 10-13), the intermediate shaft 9 and the helical spiral 6 located in the casing 5 are rotated.

spiral spiral 6 is the transportation of bulk material in the area of the discharge pipe 8, where the material enters the discharge spiral 3 and is transported to the discharge zone.

When the conveyor is operated with a helical spiral 14 (Fig. 3) or beater 15 (Fig. 5), material in the area of the transfer port is fed to the turns of a spiral 14 (Fig. 3) or beater 15 blades (Fig. 5). In this case, a reliable capture of the transported material by turns of the unloading spiral 3 occurs, especially for those cases when the spiral 3 rotates at high speeds (more than 450 rpm). In the absence of an intermediate helix 14 or beater 15, helix 3, partially rotating at high speeds. it picks up the material and moves it towards the casing 4, and a significant part of the material is thrown around (this process is characteristic of highly rotating spirals located not in the closed casing, but in the trough, in this case the lower part of the overload pipe). The presence of an intermediate spiral 14 or beater 15, rotating in the same direction as the loading spiral 3, contributes to the effective capture of the transported material, which, if it is thrown around the circle by the spiral 3, receives the reverse movement through the rotating turns of the spiral 14 or the blades of the beater 15. It is especially important so that the spiral 14 or beater 15 and Spiral 3 rotate in the same direction, which can provide chain or belt transmission when directly connecting the shafts 2 and 9,

The presence of the intermediate shaft 9, on the other hand, provides a simple drive of the shafts 7 and 2, which rotate from one drive 1.

Thus, the installation between the loading 6 and unloading 3 spirals in the transfer branch pipe 8 of the shaft 9 and the spiral 14 or beater 15 provides two positive functions: effective capture of the transported material by turns of the discharge spiral 3 in the zone of the transfer branch 8 and simplifying the design of the drive of all spirals.

When the conveyor is operating with a sprayer 16 (Fig. 7), the liquid from the tank 20 enters the sleeve 17 through a pipe 18, from where it is sent to the sprayer 16. The transported material is uniformly mixed with the sprayed liquid.

The conveyor mounted on the hitch of the machine-tractor unit 25 (Fig. 9) moves to any distance and can operate in the field without a current source.

The use of a hydraulic motor 29 (Fig. 7) allows the conveyor to be used in hard-to-reach places and during transportation of explosive materials.

. In addition, using a hydraulic motor, it is possible to smoothly control the speed of rotation of the conveyor shafts, which allows transporting material with a certain variable capacity. The implementation of the intermediate shaft 9 in the form of the output shaft of the gearbox (Fig. 11, 12) or the rotor of the electric motor (Fig. 13, 14), on the one hand, leads to a simplification of the drive design. On the other hand, the absence of an intermediate shaft 9 with a spiral. 14 or by beater 15 directly in the transfer port 8 leads to a decrease in conveyor productivity. It can only be operated at low speeds (up to 400 rpm).

FORMULA AND SECTION

Claims (6)

1. A screw conveyor containing loading and unloading lines in the form of shrouds and shafts with helical spirals placed in them, a loading branch pipe and a drive, and so that, in order to increase reliability in operation of the conveyor and simplification of the design, it is equipped with an intermediate shaft mounted parallel to the shafts of the loading and unloading lines, the free ends of which are located outside the loading branch pipe and connected to the 5 free ends of the shafts of the loading and unloading lines. 2. The conveyor according to claim 1, with the exception that the intermediate shaft is installed in the overload pipe. 0 3. The conveyor according to claim 1, characterized in that a helical spiral is mounted on the intermediate shaft. 4. The conveyor according to 1 and 2, except that it is equipped with a beater mounted on an intermediate shaft. 5. Conveyor 1-3, I distinguish u- and with the fact that it is equipped with a spray mounted on the intermediate shaft and connected to it by a fluid supply line 0. 6. The conveyor according to claim 1, characterized in that the axis of the intermediate shaft is located beyond the plane passing through the axis of the shafts of the loading and unloading lines 5. The conveyor according to claim 2, with the fact that the outer diameter of the helical spiral mounted on the intermediate shaft is less than the diameter of the spirals located in the loading and unloading line x. 8. The conveyor according to claim 3, characterized in that the beater blades are made arcuate, and the convex arches of the blades are directed in the direction of rotation of the beater. 9. The conveyor according to claim 1, characterized in that it is provided with brackets fixed to the transfer port; by which the conveyor is aggregated with the hinged system of the machine-tractor unit. 10. The conveyor according to claim 1, characterized by the fact that the shaft of the discharge line 0 connected to the output shaft of the drive gearbox, and the input shaft of the gearbox is connected via a cardan drive to the power take-off shaft of the machine-tractor unit; 11. Conveyor 1 and 8, with the fact that the shaft of the discharge line is connected to the shaft of the hydraulic motor; 12. The conveyor according to claims 1, 3, 9 and 10, on the other hand, with the fact that the countershaft is the output shaft of the gearbox. 13. The conveyor according to paragraphs 1 and 9-11, which are separate and with this, the countershaft is the rotor of the electric motor. Fm.3 Figure 5 : ..; . V .ii .. / l 7  At fig 7 and; / yr