Electric device and sleeve for it

 

The invention relates to mining, in particular electric device for mining machines. Electric device includes a holder insert with the hole for the sleeve, which has a shank cloves, and clove, and the sleeve have a head. The cylinder liner has an outer abutting surface and an inner abutting surface. The outer abutting surface abuts against abutting surface of the head insert. The inner abutting surface abuts against abutting surface of the holder insert. Abutting surface of the head insert is made convex and rests in a concave outer abutting surface of the sleeve. The inner abutting surface on the cylinder liner is made convex and rests in a concave abutting surface of the holder insert. Sleeve for electric device includes an outer abutting surface that is designed to dock with the head of the insert, and the inner abutting surface designed for mating with the holder of cloves. The outer abutting surface is made concave and designed for mating with a convex surface on the head of cloves. The inner abutting surface is made convex and is intended for mating with the concave p://img.russianpatents.com/img_data/86/869417.gif" border="0">

The present invention relates to an electric device for mining machines.

Known electric device containing the holder insert with the hole for the sleeve, which has a shank cloves, and clove, and the sleeve have a head. The cylinder liner has an outer abutting surface and an inner abutting surface with the outer abutting surface abutting against the abutting surface of the head insert. Abutting surface of the head insert has a concave surface which rests against the concave surface of the outer abutting surface of the sleeve. In the same way, the inner abutting surface of the sleeve has a convex surface, which rests against the concave surface abutting the surface of the holder insert (see, for example, DE 3336154 A1, class E 21 35/18, 25.04.1985).

The disadvantage of this known electric device is its limited life due to the limited area of contact between the support surface under the load between the head of the insert and the sleeve and between the sleeve and the holder of cloves.

The present invention is the creation of an electric device, which can eliminate the above disadvantages.

Postavljena sleeve, hosting the shank cloves, and clove, and the sleeve have a head, a cylinder liner has an outer abutting surface and an inner abutting surface, the outer abutting surface abuts against abutting surface of the head insert and the inner abutting surface abuts against abutting surface of the holder insert according to the invention abutting surface of the head insert is made convex and rests in a concave outer abutting surface of the sleeve, while the inner abutting surface on the cylinder liner is made convex and rests in a concave abutting surface of the holder insert.

Preferably abutting surface of the head insert and the outer abutting surface of the head liners include flat surfaces that rest against one another.

It is advisable that the internal abutting surface of the head sleeve and the abutting surface of the holder insert includes a flat surface which abuts one another.

It is desirable that the shank of the insert and the sleeve in its bore includes locking elements for holding the sleeve and shank inside of the holder insert, if there is a gap between the heads of the cloves from hostory shank was made with the possibility of turning within the sleeve, and the sleeve was made with the possibility of turning inside the hole of the holder insert.

Preferably, the sleeve had a shank, which rested least ledge in the hole of the holder insert and the shank would have a concave surface, which rested least a convex surface on the ledge.

Preferably, clove held inside the holder cloves through a clamp mounted on the cloves with capability of disconnecting.

According to the second aspect of the invention the problem is solved with the sleeve containing the outer abutting surface that is designed to dock with the head of the insert, and the inner abutting surface designed for mating with the holder of cloves, which according to the invention the outer abutting surface is made concave and intended for mating with a convex surface on the head of the insert, while the inner abutting surface is made convex and was intended for mating with a concave surface on the holder cloves.

Preferably, the sleeve had a shank, which rested least ledge in the hole of the holder insert and the shank had a concave surface, prednaznachenyh:

Fig.1 is a side view in cross section electric device according to the present invention;

Fig.2 is a perspective view in a disassembled form for electric devices;

Fig.3 is an enlarged view of part of the insert, showing its curved surface;

Fig.4 is an enlarged view of part of the liner, showing its curved surface.

Fig.5 is an enlarged view of the holder cloves, showing its curved surface;

Fig.6 is a perspective view in a disassembled form for insert and holder insert according to another variant implementation of the present invention;

Fig.7 is a side view according to Fig.6 with holder cloves, shown in section;

Fig.8 is a side view in cross section of the holder insert showing the location of the insert in the holder cloves;

Fig.9 is an enlarged view of part of Fig.8;

Fig.10 is a side view in section for electric devices according to the following alternative implementation of the present invention;

Fig.11 is a perspective view of the disassembled for electric device shown in Fig.10;

Fig.12 is a view similar to that shown in Fig.4, but additionally showing the curved surface of the shank sleeve;

Fig.13 is a view similar to that shown in Fig.5, but additionally showing the curved surface on the Tye surface on the shank of the sleeve and on the ledge of the holder cloves;

Fig.15 is a side view in cross section of a sleeve according to the present invention, which is intended for use as transition parts for known cloves;

Fig.16 is a side view in cross section known cloves inside the sleeve shown in Fig.15.

Ironman device 10 for mining machines of continuous operation (not shown) includes a holder 12 of the insert having a hole 14 under the sleeve 16 which is placed in the shank 18 of the insert 20. Clove 20 and the sleeve 16 have heads 22 and 24, respectively.

The head 24 of the sleeve 16 has an outer surface 26 that rests on the surface 28 of the head 22 of the insert 20. Some of these abutting surfaces 26 and 28 has a concave surface 26.1 and convex surface 28.1, which rest against one another. In addition, the abutting surfaces 26 and 28 have a flat surface 27 and 29, which rest against one another (see Fig.3 and 4).

Similarly, the inner surface 30 of the head 24 of the sleeve 16 and the outer surface 32 of the holder 12 cloves have a convex surface 30.1 and concave surface 32.1, which rest against one another. In addition to the abutting convex and concave surfaces, the inner surface 30 has a flat surface 33 which abuts against the flat poverkhnostnuyu.

The thickness of the sleeve 16, indicated by reference number 34, is 7 mm, and the thickness of the holder 12 cloves in the thin part that is located around the sleeve 16 and indicated by the reference number 36, is 22 mm

Sleeve 16 mounted on a sliding fit within the holes 14 of the holder 12 cloves. Similarly, the shank 18 of the insert is installed on a sliding fit within the sleeve 16. Thus, the sleeve 16 can be rotated relative to the holder 12 cloves and clove 20 can be rotated relative to the sleeve 16.

As shown in Fig.6-9, the electric device for a mining machine (not shown) includes clove 10.1, which has a cylinder, 12.1, and the shank 14.1 protruding from the head 12.1. Head 12.1 has an abutting surface 16.1, which ends in abutting surface 18.1 holder cloves 20.1. Abutting surface 16.1 heads 12.1 has extending around the circumference of the convex surface 22.1. Convex surface 22.1 rests on extending around the circumference of the response concave surface 24.1 on the abutting surface 18.1 holder cloves 20.1.

Abutting surface 16.1 heads 12.1 also has extending around the circumference of the flat surface 26.1, which rests on extending around the circumference of the flat over the its center 30.1, located inside the head 12.1. Concave surface 24.1 has a radius of curvature that is essentially the same as the radius of curvature 28.2.

Clove 12.1 has the ability to rotate within the holder cloves 20.1. The shank 14.1 has a shelf 11 to hold the shank 14.1 inside the holder cloves 20.1, if there is a separation of the head from 12.1 shank 14.1.

As shown in Fig.10 and 11, the electric device 10.2 for mining machines of continuous operation (not shown) is the same as shown in Fig.1-3, except that the shank 18 has made in the form located at an angle of 45° ledge surface 28.3, where there is a reduction of its diameter. The sleeve 16 has a hole 31 in which there is a corresponding, made in the form of the ledge surface, where there is a reduction of the diameter of 31.

The clip holds 32.2 clove 20 within the holder 12 cloves. If there is a gap between the head 22 of the insert, which includes a convex surface 28.1, from shank 18, then executed in the form of ledges details surface on the shank and the hole 31 will hold the sleeve 16 and the shaft 18 within the holder 12 cloves, thereby preventing loss of the liner 16. Clip 32.2 located on the insert 20 with the provision voter shank is reduced here by 2 mm.

As shown in Fig.12-14, sleeve 16.2 has a shank 38 which rests on the ledge 40 in the hole of the holder 12.2 cloves. The shank 38 has a concave surface 42 with a radius of curvature of 3.1 mm, which rests against the convex surface 44 on the ledge 40. Convex surface 44 has a radius of curvature of 3.0 mm

As shown in Fig.15 and 16, the sleeve 16.3 is the same as sleeve 16.2, except that it does not have a convex surface at its abutting surface 26. All abutting surface 26 is flat. In addition, in the bore of the sleeve 16.3 has a groove 46 under the clamp 48 is known by the insert 50. Famous clove 50 has a flat surface 52, which rests against the flat surface 26 of the sleeve 16.3. Thus, sleeve 16.3 can be applied as a transition details in the holder 12.2 cloves for known cloves 50.

The service life of electric devices according to the present invention is increased compared with the service life of the known devices. The reason for this is that the abutting convex and concave surface as a result provide increased area of contact or bearing surface under load. Increased area of contact between the abutting convex and concave surfaces is ethnostate. In addition, the convex and concave surfaces will improve povorachivaet cloves inside the sleeve or holder of cloves, and will also improve povorachivaet sleeve inside the hole of the holder cloves in connection with a reduction in pressure. In addition, the convex and concave surfaces will improve the seal between the abutting surfaces, so that at least will decrease the penetration consisting of particles of material between the abutting surfaces. Since installing the liner is made with a sliding fit inside the hole of the holder cloves, and not to the interference fit, the sleeve can be easily removed from the holder sleeve, if you need to replace the socket.

It is obvious that the present invention can be made many changes and improvements, not beyond being or scope of the invention. Despite the fact that the present invention discussed herein above the description applied to the convex surface and concave surface elements, these elements of the surface can be more broadly defined as a curved output surface elements and curved inside surface elements.

Formula is hosted shank cloves, and clove, and the sleeve have a head, with the cylinder liner has an outer abutting surface and an inner abutting surface, the outer abutting surface abuts against abutting surface of the head insert and the inner abutting surface abuts against abutting surface of the holder insert, characterized in that the abutting surface of the head insert is made convex and rests in a concave outer abutting surface of the sleeve, while the inner abutting surface on the cylinder liner is made convex and rests in a concave abutting surface of the holder insert.

2. Electric device under item 1, characterized in that the abutting surface of the head insert and the outer abutting surface of the head liners include flat surfaces that rest against one another.

3. Electric device under item 1 or 2, characterized in that the inner abutting surface of the head sleeve and the abutting surface of the holder cloves include flat surfaces that rest against one another.

4. Electric device according to any one of the preceding paragraphs, characterized in that the shank of the insert and the sleeve in its bore includes locking elements.

5. Electric device under item 4, characterized in that the locking elements are in the form of ledges.

6. Electric device according to any one of paragraphs.1-5, characterized in that the shank is made with the possibility of turning within the sleeve, and the sleeve is arranged to turn within the holder opening cloves.

7. Electric device according to any one of the preceding paragraphs, characterized in that the sleeve has a shank, which rests on the ledge in the hole of the holder insert and the shank has a concave surface which rests against the convex surface on the ledge.

8. Electric device according to any one of the preceding paragraphs, characterized in that the clove is held inside the holder cloves through a clamp attached to the insert with the ability to detach.

9. Sleeve for electric devices in accordance with any of paragraphs.1-8 containing outer abutting surface that is designed to dock with the head of the insert, and the inner abutting surface designed for mating with the holder cloves, characterized in that the outer abutting surface is made concave and designed for mating with a convex surface on the head of the insert, the internal sticher>

10. Sleeve under item 9, characterized in that it has a shaft, which rests on the ledge in the hole of the holder insert and the shank has a concave surface designed for mating with a convex surface on the ledge.



 

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