RU2489620C2 - Manufacturing and assembly method of stiff elastic holder - Google Patents

Abstract

FIELD: machine building.

SUBSTANCE: two base metal parts with a central profile in the form of a circle are made, which are arranged coaxially and fixed. Space between the parts is restricted with annular inserts. Vulcanisate of rubber mixture is poured through an inner gate. Parts for crystallisation are placed into a bath with the temperature of not more than 85-98°C, where exposure is performed during 25-50 minutes. For forming of a slot in the die mould insert there overlapped is annular space of a radially installed plate with thickness of 1-2 mm. After rubber mixture is cooled down to room temperature, the gate, the plate forming the slot is removed, and joints of transient from annular inserts are ground. Substrate (27) is used to fix nut (26) with a standard cutting profile against being rotated. Annular element (28) in the form of a plate with hole (29), in which threaded section (22) of pin (21) is located, is installed after substrate (27). Flat surface (32) of annular element (28) is connected to section (33) of flat surface of combined limit stop (34) having opposite located flattened surfaces. A nut with parallel located cuts is arranged at an angle of 9°, which is formed with cuts and axis of the combined part. On flange surface of the second part there made are two slots with sizes of 8.5 and 11.5 mm, which are arranged at the distance of 117.5 mm. After assembly is completed, the elastic holder is epilamised during 20-30 minutes with penetration of an epilamated layer to 150-200 mcm. Then, the stiff elastic holder is lubricated, dried and the information on tightening torque of a threaded connection of the part, which is equal to 14.5 Nm, is applied.

EFFECT: simpler design, increased durability and improved operating properties of a stiff elastic holder.

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Description

The invention relates to the creation of devices designed ultimately for the full fastening of heavy loads on transport and to ensure reliable transportation with proper fastening of the cargo and transporting them over considerable distances in vibration loading mode.

The invention takes into account the process of hardening the rubber surface, which is protected from the usual mode of aging of rubber of any form of formation. The main place for the manufacture of the best rubber compounds of type SKF-24-28 is the Kirov-Chepetsk Combine, and rubber mixtures of the IRP type are manufactured in the city of Balakovo.

Is GB 2123113 A known? (FORD MOTOR COMPANY LIMITED), 01/25/1984, abstract, Fig. 1, 4 p.

In the present invention is not found a complete set of features of the new invention.

The task is achieved as follows.

A method of manufacturing a rigid-elastic holder made of interconnected rubber and metal layers, where the central sleeve has a coaxially separated end bearing surface, and the rubber sleeve has annular recesses on the end faces, characterized in that two basic metal parts are manufactured (1 and 2 ), the forms of the central profile of which are performed around the circumference, the direction of the generators of the internal combined surface is made of three mating conical surfaces with the center of the opposite along the axis (3), the conical surface of the part (2) is placed coaxially along the single axis of rotation (3), and the surfaces (4 and 5) that are aligned along the axis to the axis (3) are fixed with a given diametrical clearance relative to the axis (3), limit the shape of the surfaces of the gap between the parts (1 and 2) of the ring liners (not shown for ease of perception), through the internal sprue hole facing the surface (6) of the liner, the vulcanizate of the rubber mixture is poured, and placed for crystallization in a water bath with temperature no more than 85-98 ° C, where, for 25-50 minutes, an extract is made to form the groove (7) in the mold insert, the annular space is overlapped by a radially mounted plate with a thickness of 1-2 mm, which subsequently serves as a temperature compensator in the annular rubber form, and after the rubber mixture has been cooled to room temperature, the sprue, the plate forming the groove (7) and strip joints of transitional forms (8-19) from the ring liners, and for dimensional volumetric shrinkage of fluorine-containing rubber mixtures, vertical th shrinkage of 6%, and radial shrinkage of 2%, after manufacturing the combined parts 1,2 and 20, a stud (21) is made, which is provided with threaded sections (22 and 23) from the end faces (24 and 25), and a nut is prepared (26 ) with a standard cut profile and a substrate (27), to fix the nut (26) from rolling, an annular element (28) is installed directly behind the substrate (27), made in the form of an annular plate with a hole (29) in which the threaded section ( 22) studs (21) having a tapered transition (30) onto the cylindrical surface (31) of studs (21), moreover, the flat surface (32) of the annular element (28) is connected with the plot (33) of the flat surface of the combined stop (34) having opposite flats (35 and 36), placed normal to the flat surface (37), which interacts with the ends ( 38-40) metal-rubber protrusion of parts (1 and 20), normal to the annular element (28), the nut (41) is placed at an angle of 9 °, formed by parallel sections of the nut body (41) and the axis of the part B, as shown in plan view - figure 1, produce a nut (26) pressing against the shoulder (14) details (42), moreover, on the flange surface of the part (2) there are two grooves with dimensions of 8.5 and 11.5 mm, placed at a distance of 117.5 mm, after completion of assembly, the elastic holder is epilated for 20-30 minutes than the surface the properties of the rubber mixture from cuts and mechanical defects due to the penetration of the epilated layer by 150-200 μm, then the elastic holder is lubricated, dried, and information on the tightening torque of the threaded joint of the part of 14.5 Nm is applied.

Graphic images: figure 1 - view of the lower projection; figure 2 - cross section of the product; figure 3 is a top view of the arrow A; 4 is a cross section of the main product before assembly.

Numeric Positions:

Combined parts (1 and 2); axis (3); surfaces (4 and 5); surface (6); groove (7); transitional forms (8-19) from ring inserts; combined part (20); hairpin (21); threaded sections (22 and 23); ends (24 and 25); nut (26); substrate (27); ring element (28); hole (29); conical transition (30); cylindrical surface (31); flat surface (32); plot (33) of a flat surface; combined emphasis (34); flats (35 and 36); flat surface (37); ends (38-40); nut (41); part (42).

Method description

A method of manufacturing and assembling a rigid-elastic holder made of interconnected rubber and metal layers, where the central sleeve has a coaxially separated end bearing surface, and the rubber sleeve has annular recesses on the end sides, characterized in that:

- make two basic metal parts (1 and 2), the central profile of which is performed around the circumference;

- the direction of the generators of the inner combined surface is made of three mating conical surfaces with a center of rotation along the axis (3);

- the conical surface of the part (2) is placed coaxially along a single axis of rotation (3);

- surfaces (4 and 5) extending along the normal to the axis (3) are fixed with a given diametrical clearance relative to the axis (3);

- limit the shape of the surfaces of the gap between the parts (1 and 2) of the ring inserts (not shown for ease of perception of the image in the drawing);

- through the inner sprue hole facing the surface (6) of the liner, the vulcanizate of the rubber mixture is poured, which is placed for crystallization in a water bath with a temperature of not more than 85-98 ° C, where for 25-50 minutes an exposure is made to form the groove ( 7) in the liner of the mold overlap the annular space of a radially mounted plate 1-2 mm thick, which subsequently serves as a temperature compensator in the annular rubber form of the product;

- after stirring the rubber mixture to room temperature, the sprue, the plate forming the groove (7) are removed and the joints of the transition forms (8-19) are cleared from the annular inserts;

- for dimensional volumetric shrinkage of fluorine-containing rubber mixtures, vertical shrinkage of 6% and radial shrinkage of 2% are taken into account;

- after manufacturing the combined part (1,2 and 20), a stud (21) is made, which is provided with threaded sections (22 and 23) from the ends (24 and 25);

- prepare a nut (26) with a standard cut profile and a substrate (27) to fix the nut (26) from rolling;

- immediately behind the substrate (27), an annular element (28) is installed, made in the form of an annular plate with an opening (29), in which a threaded section (22) of the stud (21) is located, having a conical transition (30) onto a cylindrical surface (31) hairpins (21);

- the flat surface (32) of the annular element (28) is connected to the flat surface section (33) of the combined stop (34) having opposite flats (35 and 36) placed normal to the flat surface (37), which interacts with the ends ( 38-40) a metal-rubber protrusion of the mold parts (1 and 20), facing the normal to the annular element (28);

- the nut (41) is placed at an angle of 9 ° formed by parallel sections of the nut housing (41) and the axis of part B, as shown in plan view - Fig. 1;

- a nut (26) compresses the flange (14) of the part (42);

- on the flange surface of the part (2), two grooves are made with sizes of 8.5 and 11.5 mm, placed at a distance of 117.5 mm;

- after completion of assembly, the elastic holder is epilaminated for 20-30 minutes, which increases the surface properties of the rubber mixture from cuts and mechanical defects due to the penetration of the epilated layer by 150-200 μm, then the elastic holder is lubricated, dried, and information about the tightening torque of the thread is applied connection details of 14.5 Nm.

An example of the method

A method of manufacturing and assembling a rigid-elastic holder made of interconnected rubber and metal layers, where the central sleeve has a coaxially separated end bearing surface, and the rubber sleeve has annular recesses on the end faces, so that:

1) make two basic metal parts (1 and 2), the central profile of which is performed around the circumference;

2) the direction of the generators of the inner combined surface is made of three mating conical surfaces with a center of rotation along the axis (3);

3) the conical surface of the part (2) is placed coaxially along a single axis of rotation (3);

4) surfaces (4 and 5) extending along the normal to the axis (3) are fixed with a given diametrical clearance relative to the axis (3);

5) limit the shape of the surfaces of the gap between the parts (1 and 2) with ring inserts (not shown for ease of perception of the image in the drawing);

6) through the inner sprue hole facing the surface (6) of the liner, the vulcanizate of the rubber mixture is poured and placed for crystallization in a water bath with a temperature of not more than 85-98 ° C, where for 25-50 minutes, exposure is performed to form the groove ( 7) in the liner of the mold overlap the annular space of a radially mounted plate 1-2 mm thick, which subsequently serves as a temperature compensator in the annular rubber form of the product;

7) after the rubber mixture has been cooled to room temperature, the gate, the plate forming the groove (7) are removed and the joints of the transition forms (8-19) are cleared from the ring inserts;

8) for dimensional volumetric shrinkage of fluorinated rubber compounds, take into account vertical shrinkage of 6%, and radial shrinkage of 2%;

9) after the manufacture of the combined part (1,2 and 20), a stud (21) is made, which is provided with threaded sections (22 and 23) from the ends (24 and 25);

10) prepare a nut (26) with a standard cut profile and a substrate (27) to fix the nut (26) from rolling;

11) immediately behind the substrate (27), an annular element (28) is installed, made in the form of an annular plate with a hole (29), in which a threaded section (22) of the stud (21) is located, having a tapered transition (30) on a cylindrical surface (31) ) studs (21);

12) the flat surface (32) of the annular element (28) is connected to the flat surface section (33) of the combined stop (34) having opposite flats (35 and 36) placed normal to the flat surface (37), which interacts with the ends (38-40) a metal-rubber protrusion of parts (1 and 20), normal to the annular element (28);

13) the nut (41) is placed at an angle of 9 ° formed by parallel sections of the nut housing (41) and the axis of the part B, as shown in plan view - Fig. 1;

14) make a nut (26) pressing against the flange (14) of the part (42);

15) on the flange surface of the part (2) there are two grooves with dimensions of 8.5 and 11.5 mm, placed at a distance of 117.5 mm;

16) after completion of the assembly, the elastic holder is epilaminated for 20-30 minutes, which increases the surface properties of the rubber mixture from cuts and mechanical defects due to the penetration of the epilated layer by 150-200 μm, then the elastic holder is lubricated, dried, and torque information is applied tightening the threaded connection of the part to 14.5 Nm.

Industrial utility of the new solution

The set of features of a technical solution shows the full possibility of manufacturing and assembling a technical solution, the possibility of its use in a vibration field with new indicators of the properties of the rubber compound.

The economic efficiency of the rigid-elastic holder combines the simplicity and the ability to manufacture the product with new indicators of durability and operational capabilities of the rigid-elastic holder.

Claims (1)

A method of manufacturing a rigid-elastic holder made of interconnected rubber and metal layers, where the central sleeve has a coaxially separated end bearing surface, and the rubber sleeve has annular recesses on the end sides, characterized in that two basic metal parts are manufactured (1 and 2 ), the forms of the central profile of which are performed around the circumference, the direction of the generators of the internal combined surface is made of three mating conical surfaces with a center along the axis (3) rotation, the conical surface of the second part (2) is placed coaxially along a single axis (3) of rotation, and surfaces (4 and 5) that are normal to the axis (3) of rotation are fixed with a given diametrical clearance relative to axis (3) rotation, limit the shape of the surfaces of the gap between the parts (1 and 2) of the annular liners, through the internal sprue hole facing the surface (6) of the liner, the vulcanizate of the rubber mixture is poured and placed for crystallization in a water bath with a temperature of not more than 85-98 ° C, where in Excerpt 25-50 minutes, to form the groove (7) in the mold insert, cover the annular space with a 1-2 mm thick radially mounted plate, which subsequently serves as a temperature compensator in the annular rubber form, and after the rubber mixture has been cooled to room temperature, the gate is removed, the plate forming the groove (7), and the joints of the transitional forms (8-19) are cleaned from the ring liners, and for dimensional dimensional shrinkage of fluorine-containing rubber compounds, vertical shrinkage of 6% is taken into account, and radial shrinkage of 2%, after the manufacture of the combined part (1, 2 and 20), a stud (21) is made, which is provided with threaded sections (22 and 23) from the end faces (24 and 25), a nut (26) with a standard cut profile is prepared and a substrate (27) for fixing a nut (26) with a standard anti-roll profile, immediately behind the substrate (27), an annular element (28) is installed, made in the form of an annular plate with a hole (29) in which a threaded section (22) is located studs (21) having a conical transition (30) to a cylindrical turn stud (21), moreover, the flat surface (32) of the annular element (28) is connected with the portion (33) of the flat surface of the combined stop (34) having opposite flats (35 and 36), placed normal to the flat surface (37), which interacts with the ends (38-40) of the metal-rubber protrusion of the parts (1 and 20), normal to the ring element (28), the nut (41) with parallel sections is placed at an angle of 9 ° formed by the sections and axis (B) of the combined part, and is produced with a nut (26) with a standard profile m facet is pressed to the shoulder (14) of the third part (42), and on the flange surface of the second part (2) there are two grooves with dimensions of 8.5 and 11.5 mm, placed at a distance of 117.5 mm, after the assembly is completed, an elastic holder epilaminate for 20-30 min, which increases the surface properties of the rubber mixture from cuts and mechanical defects due to the penetration of the epilated layer by 150-200 μm, then the rigid-elastic holder is lubricated, dried, and information on the tightening torque of the threaded connection of the part is applied to 14.5 Nm.

Images