RU2800455C1 - Device for cleaning air filters of automobile-tractor engines - Google Patents

Abstract

FIELD: cleaning.

SUBSTANCE: invention relates to cleaning equipment, mainly to devices for cleaning air filters of internal combustion engines. The device for cleaning air filters of automobile-and-tractor engines comprises a housing, a mandrel with a mechanism for fastening and rotating filters, including a support and overhead parts, inlet and outlet pipelines, nozzles, an ejector, an air pressure regulator, a differential pressure gauge, a device for ensuring the necessary clearance between the nozzles and the filter. The nozzles located on the inner side of the filter are placed in pairs radially. A spring is installed between the nozzles of each pair, which ensures the return of the nozzles to their original position after excluding their contact with the bushing mounted on the fixed axle. Each set of nozzles located on the outer side of the filter is equipped with a device for their overlap, which is made in the form of a tube with a seal on the side of the nozzles, fixed on the nozzle holder configured for moving along the nozzle holder when replacing the cleaned air filter of one standard size with another. The roller is supported on the overhead part of the filter attachment and rotation mechanism and has the ability to move along the groove made in a circle with the centre of the fixed axis on the overlay part of the filter attachment and rotation mechanism.

EFFECT: invention makes it possible to change the number of used delivery and suction nozzles of the device for cleaning the air filters of internal combustion engines when servicing filters of various sizes.

1 cl, 3 dwg

Description

SUBSTANCE: invention relates to cleaning equipment, mainly to devices for cleaning air filters of internal combustion engines.

The closest set of essential features is a device for purging the air filters of automotive engines [RF patent for the invention No. 2715850, publ. 03/03/2020. Bull. No. 7].

SUBSTANCE: device for blowing air filters of autotractor engines contains a housing, a mandrel with a mechanism for fastening and rotating filters, including a support and an overlay part, made in the form of a set of cylindrical surfaces with diameters corresponding to the standard sizes of serviced air filters, and mounted on bearings on a fixed axis mirror relative to the filter, inlet and outlet pipelines, nozzles, ejector, air pressure regulator, differential pressure gauge, device for ensuring the necessary clearance between the nozzles and the filter.

The disadvantages of this device are:

- the absence of pressure nozzles along the entire height of the serviced filters, which leads to a low degree of cleaning of the upper part of the filters, having a height greater than the minimum height of the serviced filter;

- low effect of dust suction from the zone of its removal by injection nozzles.

The essence of the invention is as follows.

The objective of the invention is to improve the quality of cleaning the air filters of internal combustion engines.

The technical result is the possibility of changing the number of used delivery and suction nozzles of the device for cleaning the air filters of internal combustion engines when servicing filters of various sizes.

The specified technical result in the implementation of the invention is achieved by a device for cleaning air filters of automotive engines, containing a housing, a mandrel with a mechanism for attaching and rotating filters, including a support and an overlay, made in the form of a set of cylindrical surfaces with diameters corresponding to the standard sizes of serviced air filters, and installed on bearings on a fixed axis in a mirror image with respect to the filter, inlet and outlet pipelines, nozzles, ejector, air pressure regulator, differential pressure gauge, a device for providing the necessary clearance between the nozzles and the filter, while the nozzles located on the inner side of the filter are placed in pairs radially, with the possibility move into the internal cavity of the fixed axle through the holes under the influence of the sleeve mounted on the fixed axle and connected to the bearing of the overlay part, which can move along it when the position of the overlay bearing changes when replacing the air filter of one size to be cleaned by another, a spring is installed between the nozzles of each pair , which ensures the return of the nozzles after eliminating their contact with the sleeve mounted on the fixed axis, to their original position, and each set of nozzles located on the outer side of the filter is equipped with a device for their overlap, which is made in the form of a tube with a seal on the side of the nozzles, fixed on the holder nozzles with the ability to move along the nozzle holder when replacing the cleaned air filter of one size with another, associated with the axis on which the roller is placed with the ability to move along it, the roller is supported on the overhead part of the filter attachment and rotation mechanism and has the ability to move along the groove made around the circumference with the center of the fixed axis on the overhead part of the filter attachment and rotation mechanism.

The essential features that affect the achievement of the claimed technical solution are:

- placement of nozzles located on the inner side of the filter, in pairs radially;

- installation of nozzles located on the inside of the filter, on the fixed axis of the sleeve;

- connection of the bushing with the bearing of the consignment note;

- providing the ability to move the nozzles located on the inner side of the filter into the inner cavity of the fixed axis through the holes under the influence of the sleeve when changing the position of the bearing of the overlay part when replacing the air filter being cleaned from one size to another;

- installation between each pair of nozzles located on the inside of the filter, springs;

- providing springs for returning a pair of nozzles located on the inside of the filter to their original position;

- equipping each set of nozzles located on the outer side of the filter with a device for their overlap;

- execution of each device for overlapping nozzles located on the outer side of the filter, in the form of a tube;

- execution of the tube of the device for overlapping nozzles located on the outer side of the filter, with a seal on the side of the nozzles;

- fixing the tube of the device for overlapping the nozzles located on the outside of the filter on the nozzle holder;

- the possibility of moving the tube of the device for overlapping nozzles located on the outside of the filter along the nozzle holder when replacing the cleaned air filter of one standard size with another;

- connection of the tube of the device for overlapping nozzles located on the outer side of the filter with the axis;

- placement of the roller on the axis;

- the ability to move along the axis of the roller;

- providing support for the roller on the overhead part of the filter attachment and rotation mechanism;

- the ability to move the roller along the groove;

- making a groove along a circle with the center of a fixed axis on the overhead part of the filter attachment and rotation mechanism.

The essence of the invention is illustrated by drawings, where in Fig. 1 shows a diagram of the proposed design of a device for cleaning air filters of automotive engines; in fig. 2 shows section A-A of FIG. 1; in fig. 3 shows section B-B of FIG. 1.

A device for cleaning air filters of automotive engines includes a housing 1 (Fig. 1, Fig. 2), a mandrel 2 with a mechanism 3 for attaching and rotating filters 4, including a support 5 and a consignment note 6, made in the form of a set of cylindrical surfaces 7 with diameters corresponding to the standard sizes serviced air filters, and mounted on bearings 8 on a fixed axis 9 mirror relative to the filter, inlet 10 and outlet 11 pipelines, nozzles 12 and 13, ejector 14, air pressure regulator 15, differential pressure gauge 16, device 17 to provide the necessary clearance between nozzles 13 and filter 4, wherein the nozzles 12 located on the inner side of the filter 4 and connected to the inlet pipeline 10 are discharge, and the nozzles 13 located on the outside of the filter and connected to the outlet pipeline 11 are suction. Injection nozzles 12 are placed on the fixed axle 9 in pairs radially, with the ability to move into the internal cavity 18 of the fixed axle 9 through the holes 19 under the influence of the sleeve 20 mounted on the fixed axle 9 and connected with the bearing 8 of the overlay part 6, which can move along it when changing the position of the bearing 8 of the overhead part 6 when replacing a cleanable air filter of one size with another. Between the nozzles 12 of each pair, a spring 21 is installed, which ensures the return of the nozzles 12 after eliminating their contact with the sleeve mounted on the fixed axle, to its original position. Each set of suction nozzles 13, located on the outer side of the filter 4, is equipped with a device for their overlap, which is made in the form of a tube 22 with a seal 23 on the side of the nozzles 13. size to another. It is connected with the axis 25, on which the roller 26 is placed. The roller 26 has the ability to move along the axis 25, rely on the invoice part 6 of the mechanism for fastening and rotating filters and move along the groove 27, made in a circle with the center of the fixed axis 9 on the invoice part 6 of the mechanism. 3 mounting and rotating filters.

Between the internal cavity 18 of the fixed axis 9 and the channel for removing the products of cleaning the filter from one of the rows of nozzles 13 into the outlet pipeline 11, a differential pressure gauge 16 is placed, the use of which in conjunction with the air pressure regulator 15 eliminates the possibility of rupture of the filter elements of the air filters 4 of internal combustion engines during their cleaning .

The length of the fixed axis 9 and the height of the body 1 provide the installation of all filter sizes serviced on this device.

The discharge nozzles 12 can be placed along the fixed axis 9 in pairs in one or more rows, and the suction nozzles 13 - in two rows, on both sides of the filter, symmetrically to its axis.

The suction nozzles 13 are equipped with a device 17 that provides the necessary gap A (10-45 mm) between the nozzles 13 and the filter 4.

The filter cleaning process is carried out as follows.

The filter 4 to be cleaned is installed in the housing 1 on the support part 5 of the mechanism 3 for attaching and rotating the filters. The filter 4 to be cleaned is placed on the fixed axis 9. On the other side of the filter, on the fixed axis 9, an overlay part 6 of the mechanism 3 for attaching and rotating the filters is installed. Then the filter to be cleaned is clamped between the support 5 and invoice 6 parts of the mechanism 3 for fastening and rotating filters 4.

The device for closing the suction nozzles 13 is moved along the holder 24 of the nozzles until the roller 26 stops against the overlay part 6 of the filter attachment and rotation mechanism and the roller 26 is installed in the groove 27.

The differential pressure gauge 16 is connected to the internal cavity 18 of the fixed axis 9 and the channel for removing the filter cleaning products from one of the rows of nozzles 13 located on the outer side of the filter into the outlet pipeline 6.

An air pressure regulator 15 is installed in the supply pipeline 10.

Cleaning of the filter begins with the supply of compressed air through the pipeline 10 to the air pressure regulator 15. Next, air at a given pressure is supplied to the injection nozzles 12. At the same time, the electric motor 28 is turned on, which, using a belt drive 29, drives the filter 4 in rotation. In this case, the rollers 26 roll over the groove 27 of the overhead part 6 of the mechanism 3 for attaching and rotating the filters. The frequency of rotation of the filter 4 is set equal to 2000-3000 min ^-1 at which large particles and partially dust are removed due to the forces of inertia from the filter elements of the filter 4. The remaining dust from the filter elements of the filter is removed due to the air pressure difference in the internal cavity 18 of the fixed axis 9, created by the pump (conditionally not shown), and in the channel for the removal of filter cleaning products into the outlet pipeline 11 due to the ejection effect provided by the ejector 14. combustion during cleaning.

When replacing a filter, for example, having a minimum height of all sizes of serviced filters, with a filter with a higher height and a larger diameter, the coupling 30 is disconnected, the fitting 31 is unscrewed from the fixed axis 9 and the overlay part 6 of the filter attachment and rotation mechanism 3 is removed from the housing 1 4, the device for closing the suction nozzles 13 and the filter 4. Then, another filter is placed on the support part 5 of the mechanism 3 for attaching and rotating the filters 4, which needs to be cleaned. The nut 32 through the spring 33, the bearing 8 and the overlay part 6 sets the preload of the filter to be cleaned to the support part 5 of the mechanism 3 for fastening and rotating the filters 4, necessary for reliable fixation of the filter on the mandrel 2 of the air filter cleaning device. At the same time, the discharge nozzles 12, blocked by the sleeve 20 when cleaning filters of a lower height, return to their original position under the action of the springs 21 and are ready to pass compressed air to purge the filter 4. At the same time, the device for blocking the suction nozzles 13 moves up along the holder 24 to height corresponding to the height of the serviced filter. The number of nozzles 13 not blocked by the seal 23 increases. In addition, the device 17 moves the holders 24 of the nozzles 13 from the fixed axis 9 towards the walls of the housing 1, setting the required gap between the nozzles 13 and the filter 4.

Thus, the claimed device will improve the quality of cleaning air filters of various sizes through the use of the required number of injection and suction nozzles in the device.

Claims (1)

A device for cleaning air filters of autotractor engines, comprising a housing, a mandrel with a mechanism for attaching and rotating filters, including a support and an overhead part, made in the form of a set of cylindrical surfaces with diameters corresponding to the standard sizes of serviced air filters, and mounted on bearings on a fixed axis mirror relative to the filter , inlet and outlet pipelines, nozzles, ejector, air pressure regulator, differential pressure gauge, a device for providing the necessary clearance between the nozzles and the filter, characterized in that the nozzles located on the inside of the filter are placed in pairs radially, with the ability to move into the internal cavity of the fixed axis through the holes under the influence of a bushing mounted on a fixed axis and connected to the bearing of the overlay part, which has the ability to move along it when the position of the overhead part bearing changes when the air filter being cleaned of one size is replaced by another, a spring is installed between the nozzles of each pair, ensuring the return of the nozzles to their original position, and each set of nozzles located on the outer side of the filter is equipped with a device for their overlap, which is made in the form of a tube with a seal on the side of the nozzles, fixed on the nozzle holder with the possibility of moving along the nozzle holder when replacing the cleaned air filter of one size with another, connected with an axis on which the roller is placed with the ability to move along it, the roller is supported on the overhead part of the filter attachment and rotation mechanism and has the ability to move along the groove made in a circle centered on the fixed axis on the overlay part of the filter attachment and rotation mechanism.