RU203711U1 - Double-rotor module of an executive body of a mining combine - Google Patents

Abstract

The utility model relates to the mining industry, in particular, to the drives of the executive bodies of roadheaders used in underground mining. A two-rotor module of an executive body of a mining combine consists of a housing 1, a drive shaft for the portable rotation of the cutting head 2, a drive shaft for the cutting devices 3 and bearings 4. The technical result: creating the most accurate alignment of the drive shaft for the portable rotation of the cutting head 2 and the drive shaft for the cutting devices 3.

Description

Technical field to which the utility model belongs

The utility model relates to the mining industry, in particular, to the drives of the executive bodies of roadheaders used in underground mining.

State of the art

Known analogue "The executive body of the shaft-sinking combine" (and.with. No. 1603004) which includes a drive with a fluid coupling, a gearbox, a telescopic intermediate shaft and a carrier, located coaxially. In this case, the intermediate shaft passes inside the carrier, and they are connected kinematically to each other by means of gears of the central, lateral cylindrical gearboxes of the cutting body and double universal joints (cardan shafts).

The closest technical solution adopted for the prototype is the "Mining Harvester" (RF patent 2023153С1), which contains a chassis, a loading device that includes a screw feeder and a frame, a planetary-type executive body. The executive body contains a body mounted on the loader frame, an eccentric bushing installed in the body with the possibility of rotation, a carrier mounted with the possibility of rotation in the eccentric bushing. The carrier is equipped with milling discs with cutting tools.

A common disadvantage of the analogue and the prototype is the structural-kinematic diagrams, with the help of which they are disclosed in the sources. These diagrams do not provide unambiguous information on how the alignment of the telescopic intermediate shaft and the carrier (in the case of an analogue), and the alignment of the drive shaft of the milling discs and the carrier (in the case of the prototype) is carried out.

Disclosure of a utility model

The technical result of this utility model is to create the most accurate alignment of the drive shaft of the portable rotation of the cutting head and the drive shaft of the cutting devices.

This is achieved by the fact that in the end parts inside the drive shaft of the portable rotation of the cutting head cylindrical bores corresponding to the outer diameter of the bearings of the drive shaft of the cutting devices are made.

The technological chain, consisting of: the drive shaft of the portable rotation of the cutting head, bearings and the drive shaft of the cutting devices - has a minimum, total misalignment, due to precise processing: internal, seating surfaces of the drive shaft of the portable rotation of the cutting head; external, landing journals of the drive shaft of cutting devices; as well as the working surfaces of the bearings.

Description of drawings

The essence of the utility model is illustrated by graphic materials, which show:

FIG. 1 - Double-rotor module of the executive body of a mining combine (Front view, section);

Implementation of the utility model

The two-rotor module of the executive body of the mining combine (Fig. 1) consists of a housing 1, a drive shaft for the portable rotation of the cutting head 2, a drive shaft for cutting devices 3 and bearings4.

The utility model works as follows: internal bores for bearings 4, drive shaft for portable rotation of the cutting head 2, as well as external journals for bearings 4 for drive shaft of cutting devices 3, due to precise machining, have minimal misalignment among themselves (Fig. 1). The exact relative position of these surfaces, together with the bearings 4 installed between them, gives a high alignment of the shafts 2 and 3 with each other.

In the process of operation of the executive body of the mining combine, the drive shaft of the portable rotation of the cutting head 2 and the drive shaft of the cutting devices 3 transmit rotation to the corresponding elements independently of each other, while the quality and reliability of the operation of the corresponding elements is directly influenced by the alignment of the shafts 2 and 3 with each other.

It should be noted that the given configuration of the two-rotor module of the executive body of a mining combine, as well as its elements, are a special case and can be executed in a different way, essential are the possibilities themselves that such a configuration gives, and which, nevertheless, can be achieved near other design features. Also, for the claimed two-rotor module of the executive body of the mining machine in the form as it is described in the formula of the utility model, there is a possibility of manufacturing and application using means and methods known before the filing date of the application.

The claimed utility model can find wide application in the mining industry for rock excavation, in particular, on roadheaders used in mining by underground method.

Claims (1)

A two-rotor module of an executive body of a mining combine, containing a housing, a drive shaft for the portable rotation of the cutting head mounted inside the housing in two bearings, a drive shaft for cutting devices installed inside the drive shaft for a portable rotation of the cutting head in two bearings, characterized in that in the end parts inside the shaft of the drive of the portable rotation of the cutting head, cylindrical bores are made, corresponding to the outer diameter of the bearings of the drive shaft of the cutting devices.

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