SU1447688A1 - Chain jib - Google Patents

Abstract

The invention relates to machine tools for the extraction and processing of building stone and various rocks and makes it possible to simplify manufacture and increase productivity by ensuring smooth chain movement. This is achieved by creating a constant force contact between the leading surfaces 13 and 14 and the driven surfaces 15 and 16 between the bases of the groove of the driving coil 2 and the projections of the connecting strips 5, the gap 17 is made, and the contacting of the projections of the connecting strips 5 with the driven roller the base of the groove of the driven roller and the protrusions of the connecting strips 5 with the formation of lateral gaps. 8 yl

Description

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The invention relates to the tools of MaujHH machines for the extraction and processing of building stone and various rocks.

The purpose of the invention is to simplify manufacture and increase productivity by ensuring smooth chain movement.

FIG. 1 shows a chain bar, a vertical projection; FIG. 2 - the same, profile projection; in fig. 3 - chain link, vertical projection; in fig. 4 - the same, profile projection; in fig. 5 is a cross section of the trapezoidal groove of the drive coil in engagement with the protrusion of the interposer; in fig. 6 - cross-section of the trapezoidal groove of the driven roller in 30

clinging with the protrusion of the connecting plan-. 24 and 25 and are connected to housing 1 with screws ki; in fig. 7 - vertical projection of

dinitelpawi cutting chain; in fig. 8 - profile projection of the interposer by cutting the chain.

The chain bar consists of body 1, drive coil 2, cutting chain 3, consisting of 20 cams 4, connecting bars 5, fingers 6, cutting teeth 7 and driven roller 8.

Case 1 is a rectangular cross-section beam with lateral 10-25 PI-1 strips 9 with an internal groove of the trapezoidal section along which the cutting chain moves during operation.

The drive coil 2 is connected to the housing 1 via the slide 10 by means of a key 11. And with the slide the Katu is connected by a bearing 12.

On the peripheral surface of the welded coil 2, a closed groove of a trapezoidal section with working surfaces 13 and 14 is made in diameter. On a driven turn x post post of connecting strip 5, a 5-stupa section is made in the form of an annular sector with a radial trapezoidal section and working surfaces 15 and 16.

To create a constant force contact between the leading surfaces 13 and 14 and the driven surfaces 15 and 16 between the bases of the groove of the driving coil 2 and the protrusions of the connecting strips 5, the gap 17 is made. The gap is set based on the wear limit of the leading surfaces of the groove of the driving coil 2 and the driven surfaces protrusions of connecting strips 5.

The constant force contact of the leading surfaces 13 and 14 of the drive coil 2 and the driven surfaces 15 and 16 of the protrusions of the connecting strips 5 is made by the clamping device 18 of the cutting chain 3 and is fixed in the required position by the clips 19.

The driven roller 8 is a disc with a peripheral trapezoid groove in diameter. The contacting of the protrusions of the connecting strips 5 with the driven roller 8 is made on the basis of the groove of the driven

26. After this, the key 1 is installed in the housing 1, the slide 10 is connected to the drive coil 2. The cutting chain 3 is installed and the last link is connected. Tensioning device 18 is used to tension the chain and fix it with clips 19.

The rotation of the cutting chains of the chain 3 is carried out by contacting the leading surfaces 13 and 14, the drive coil 2 and the driven surfaces 15 and 6, the protrusions of the connecting strips 5.

The transmission of motion from the electric motor and the rotational drive (not shown) is transmitted to the drive coil 2, which rotates the cutting chain.

The presence of a surface-contacting of the leading surfaces 13 and 14 of the drive coil 2 and the driven surfaces of the 15 and 16 protrusions of the interlocking strips 5 makes it possible to transfer significantly more effort than with a linear contact.

Claims (2)

Invention Formula A chain bar comprising a housing, located at its ends of the fivodal and driven rollers, and enclosing their cutting chain; its chain, consisting of cams, pivotally connected with the help of fingers with connecting strips and cutting teeth, characterized in that in order to simplify the fabrication and increase productivity due to the smooth movement of the chain, the drive and driven rollers are made with trapezoid grooves, and on the driven surface of each connecting strip there is a projection in the form of a sector of The connecting strips are installed with the possibility of placing the protrusions in the groove of the drive roller with the contacting of the side surfaces and with the formation of a gap between their bases, and in the groove of the driven roller with the contacting of the bases of the groove and the protrusion with the formation of a gap between their lateral surfaces. 40 55 the roller 8 and the protrusions of the connecting strips 5 with the formation of side gaps 20 and 2 between the surfaces 15 and 6 of the projections of the connecting strips 5 and the surfaces 22 and 23 of the groove of the driven roller 8. The driven roller 8 is connected to the body 1 by plates 24 and 25 with the help of screws 26. To reduce friction, the driven roller 8 is seated on a rolling bearing 27. The assembly and operation of the chain bar of the proposed dry design is described as follows. On case 1, rivets connect direction 9, then install the driven roller 8 with the bearing pin 27 and the pin, 24 and 25 and is connected to housing 1 with screws 26. After this, the key 1 is inserted into the case 1, the slide 10 is connected to the drive coil. 2. Install the cutting chain 3 and connect the last link. Tensioning device 18 is used to tension the chain and fix it with clips 19. The rotation of the cutting chains of the chain 3 is carried out by contacting the leading surfaces 13 and 14, the drive coil 2 and the driven surfaces 15 and 6, the protrusions of the connecting strips 5. The transmission of motion from the electric motor and the rotational drive (not shown) is transmitted to the drive coil 2, which rotates the cutting chain. The presence of a surface-contacting of the leading surfaces 13 and 14 of the drive coil 2 and the driven surfaces of the 15 and 16 protrusions of the interlocking strips 5 makes it possible to transfer significantly more effort than with a linear contact. Invention Formula A chain bar comprising a housing, located at its ends of the fivodal and driven rollers, and enclosing their cutting chain; its chain, consisting of cams, pivotally connected with the help of fingers with connecting strips and cutting teeth, characterized in that in order to simplify the fabrication and increase productivity by providing smooth movement of the chain, the drive and driven rollers are made with trapezoid grooves, and on the driven surface of each connecting strip there is a protrusion in the form of a trajectory radial section audio, wherein the connecting bars are arranged to accommodate the projections in the groove privod- pogo roller contacting with the side surfaces and to form a gap between their bases, and in the groove of the driven roller - from contacting the projection and groove bases to form a gap between their side surfaces. i2 / Phie. one .-- t Fa.e. (para. 2 7 (rie 20 ae.6 not 7 Fie.8