RU2368420C1 - Cartridge-type roller mill - Google Patents

Abstract

FIELD: machine building, food industry.

SUBSTANCE: cartridge-type roller mill comprises bed, two rollers, roller-to-roller gear transmission, throw-out mechanism and device to adjust gap between rollers. Aforesaid two rollers, throw-out mechanism and gap adjustment device are mounted on rigid base and make a cartridge that moves on support rollers with their shafts fitted on aforesaid bed. Roller-to-roller gear transmission represents a reduction gear with its input and output shafts coupled with rollers with the help of rollers. Reduction gear is mounted on the bed to move along rollers axis.

EFFECT: fast replacement of two worn out rollers, reduced noise and longer life.

3 cl, 4 dwg

Description

The invention is intended for use in grinding grain products in flour milling.

A known roller mill containing a bed, two rollers, a drive, an interdrive gear, a dump mechanism and a device for regulating the inter-roll gap (Machines and apparatuses for food production. In 2 books, Book 1: Textbook for universities / S.T. Antipov, I.T. Kretov, A.N. Ostrikov and others; edited by V.A. Panfilov. - M .: Higher school, 2001, 703 p., See p. 415).

The disadvantage of this design of the machine is that the high-speed and low-speed rollers are attached to the bed with their bearing supports. The blade-stop mechanism and the device for regulating the roll gap are also mounted on the bed. Therefore, to replace worn rollers, it is necessary to carry out a large amount of work on disassembling, assembling and setting up the machine at the place of its operation under conditions unfavorable to ensure the quality of work in a short time. In addition, the use of two gears in the rolling mill gear at a variable center-to-center distance increases the noise and wear of the gears.

The closest analogue of the proposed design of the machine is a roller machine containing a bed, two rollers, a drive, an inter-roller gear, a blade-stop mechanism and a device for regulating the inter-roller gap (06.05-51P. Roller-type machine. // Review journal. Food industry equipment. - 2007. - No. 5).

This machine uses a gear-belt inter-roll gear, which is improved by a device that provides quick removal of the gear belt when disassembling the machine for removing spent rollers. The disadvantage of the design of the analogue is that this device only to a small extent solves the problem of the complexity and duration of disassembly-assembly of the machine at the place of its operation when replacing spent rollers. The gear-belt interdrum gear has less reliability and wear resistance compared to a gear located in a sealed housing with liquid lubrication and made in the form of a gearbox.

The technical result of the invention is the ability to qualitatively and in a short time to replace two spent rollers, reduce noise and increase the technical resource of the rolling mill transmission.

The technical result is achieved by the fact that in a cassette rolling machine containing a bed, two rollers, a drive, an interdrive gear, a blade-stop mechanism and a device for adjusting the roll gap, a high-speed and low-speed rolls together with a blade-stop mechanism and a device for regulating the roll gap mounted on a rigid base and represent a cassette with the ability to move on rollers, the axes of which are mounted on a bed, the roller drive is made in the form of a gearbox, input and output discharge rollers which are connected to the resilient couplings rollers. The gearbox mounted on the bed with the ability to move along the axis of the rollers has two fixed axes of the gears, and two other axes of the gears are hinges of the lever mechanism with the possibility of movement. The caster support rollers are mounted on eccentric axes movably fixed in the upper part of the bed under the cassette base.

The use of a removable cartridge allows the use of advanced methods of labor organization in the operation and repair of equipment that positively affect the utilization of the machine and product quality. The presence of an adjustable rolling mill gear that provides precise gearing and its placement in a sealed gear case increases the technical life of the gear and reduces the noise during its operation.

Thus, the set of essential features of the invention contributes to the achievement of the desired technical result.

Figure 1 shows a General view of the roller mill. Figure 2 is a view A of figure 1. Figure 3 is a section aa of figure 1. Figure 4 - layout of the gears of the gearbox.

The cassette roller machine contains a bed 1, a cassette 2, a gearbox 3, and support rollers 4. The cassette 2 contains: a base 5 on which the bearing bearings 6 of the high-speed roller 7 are fixed, two swing axes 8 of the levers 9 with the bearing supports 10 of the low-speed drum 11, the stop screws 12, the stem 13 with a spring 14, which are placed between the bearing support 10 and the fork 16 with an eccentric 17 suspended inside it, suspended on the axis 15.

Support rollers 4 are mounted on the eccentric axes 18 in the upper part of the bed 1 under the base 5 of the cartridge 2. The gearbox 3 comprises an input shaft 19 with a pulley 20 and gear 21, spurious gears 22, 23 and an output shaft 24 with gear 25. Along the axes of rotation of the gears 22 , 23 and 25 are the hinges of the levers 26 and 27, connecting these axes during their possible movement. The input shaft 19 of the gearbox 3 and its output shaft 24 are connected by elastic couplings 28 and 29 with the rollers 7 and 11. The gearbox 3 is mounted on the frame 1, has a nut 30 mounted on the gearbox 3 with a screw 31, the support 32 of which is connected to the frame 1. The electric motor 33 is connected by a belt drive 34 to the input shaft 19 of the gearbox 3.

Cassette roller machine operates as follows. The processed material comes from the feeder (not shown) into the gap between the high-speed roller 7 rotating towards each other and the low-speed roller 11. The rollers 7 and 11 are driven from the electric motor 33, the belt drive 34, the input shaft 19 and the output shaft 24 of the gearbox 3 through elastic couplings 28 and 29.

The material is crushed due to its compression and shear in the inter-groove gap, which is regulated by two stop screws 12. When a foreign solid particle enters the inter-groove gap, the low-speed roller 11 with lever 9 will turn on axis 8, compressing the spring 14, and pass the particle through the increased gap. If necessary, significantly increase the gap between the rollers (to make a blade) turn the eccentric 17, which leads the plug 16 and with it the rod 13, spring 14 and low-speed roll 11 from high-speed 7.

The approximate procedure for the work performed when replacing the cartridge is as follows.

Unscrew the screws securing the cartridge 2 to the frame 1.

Loosen the screws securing the gearbox 3 to the bed 1. By rotating the screw 31, the gearbox 3 is moved along the axis of the rolls to bring the clutches 28, 29 out of engagement.

The eccentric axes 18 of the support rollers 4 are turned with a special key, introducing the rollers into contact with the base 5 of the cassette 2 and raising it 3.4 mm above the level of the plane of contact of the frame 1 with the cassette 2.

Using a manual winch mounted on a special trolley having a roller platform at the level of the support rollers 18, the cassette 2 is rolled out of the machine onto the trolley.

On a cart, the cassette is transported to the place of repair and debugging work using appropriate equipment, instruments and stands.

Prepared for use, a removable cartridge is transported on a special trolley to the workshop and installed on the machine, performing operations in the reverse order to the above.

Claims (3)

1. A cassette roller machine containing a bed, two rollers, an interdrive gear, a dump mechanism and a device for regulating an inter-roll gap, characterized in that the two rollers, a dump mechanism and a device for regulating an inter-roll gap are mounted on a rigid base and represent a cassette with the ability to move on the support rollers, the axes of which are mounted on the bed, the roller drive is made in the form of a gearbox, the input and output shafts of which are connected to the rolls by elastic couplings mi; the gearbox is mounted on a bed with the ability to move along the axis of the rollers. 2. The cassette roller machine according to claim 1, characterized in that in the gearbox two axles of the gears are stationary, and the other two axles of the gears are hinges of the lever mechanism with the possibility of movement. 3. The cassette roller machine according to claim 1 or 2, characterized in that the support rollers of the cartridge are mounted on eccentric axes movably fixed in the upper part of the bed under the base of the cartridge.

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