Cutting machine

A cutting machine, comprising:

• a machine frame (3) carrying a chassis;
• cutting heads or rollers rotationally mounted on a pivotable cutting arm (6);
• a conveyor extending in the direction of a mine face for receiving and removing cut material;
• and
• a carriage displaceable on guides extending in a longitudinal direction of the machine, wherein
• the cutting arm (6) is pivotably mounted on the carriage (4);
• the carriage (4) carries guide rods (12) extending in the longitudinal direction of the machine;
• the guide rods (12) engage with tubular guides (13) of the machine frame (3);
• on a rear end of the carriage (4) facing away from the cutting arm (6), a pivot axis (8) extending transversely to the longitudinal axis of the machine is positioned for pivot of a rear part of the conveyor or a conveying chute;
• and
• the cutting machine further comprises a conveyor chute that is designed as an upwardly open chute over an entire length of the conveyor.

A cutting machine, comprising:

• a machine frame (3) carrying a chassis;
• cutting heads or rollers rotationally mounted on a pivotable cutting arm (6);
• a conveyor extending in the direction of a mine face for receiving and removing cut material;
• and
• a carriage displaceable on guides extending in a longitudinal direction of the machine, wherein
• the cutting arm (6) is pivotably mounted on the carriage (4);
• the carriage (4) carries guide rods (12) extending in the longitudinal direction of the machine;
• the guide rods (12) engage with tubular guides (13) of the machine frame (3);
• the carriage (4) is designed as an upwardly open chute comprising side cheeks in which is positioned a pivot axis (5) for vertical pivoting of the cutting arm (6);
• and
• the cutting machine further comprises a pivotable, rear frame part (10) articulately connected with the machine frame (3), and cardanically connected to a part of the machine frame (3) comprising the tubular guides (13).

A cutting machine, comprising:

• a machine frame (3) carrying a chassis;
• cutting heads or rollers rotationally mounted on a pivotable cutting arm (6);
• a conveyor extending in the direction of a mine face .for receiving, and removing cut material;
• and
• a carriage displaceable on guides extending in a longitudinal direction of the machine, wherein
• the cutting arm (6) is pivotably mounted on the carriage (4);
• the carriage (4) carries guide rods (12) extending in the longitudinal direction of the machine;
• the guide rods (12) engage with tubular guides (13) of the machine frame (3);
• the tubular guides (13) are arranged between crawler mechanisms (2), and the tubular guides (13) are connected to one another by braces or plates (17) extending transversely to longitudinal axes of the tubular guides (13);
• and
• the cutting machine further comprises a pivotable, rear frame part (10) articulately connected with the machine frame (3), and cardanically connected to a part of the machine frame (3) comprising the tubular guides (13).

A cutting machine, comprising:

• a machine frame (3) carrying a chassis;
• cutting heads or rollers rotationally mounted on a pivotable cutting arm (6);
• a conveyor extending in the direction of a mine face for receiving and removing cut material;
• and
• a carriage displaceable on guides extending in a longitudinal direction of the machine, wherein
• the cutting arm (6) is pivotably mounted on the carriage (4);
• the carriage (4) carries guide rods (12) extending in the longitudinal direction of the machine;
• the guide rods (12) engage with tubular guides (13) of the machine frame (3);
• on a rear end of the carriage (4) facing away from the cutting arm (6), a pivot axis (8) extending transversely to the longitudinal axis of the machine is positioned for pivot of a rear part of the conveyor or a conveying chute;
• and
• the cutting machine further comprises a pivotable, rear frame part (10) articulately connected with the machine frame (3), and cardanically connected to a part of the machine frame (3) comprising the tubular guides (13).

A cutting machine, comprising:

• a machine frame (3) carrying a chassis;
• cutting heads or rollers rotationally mounted on a pivotable cutting arm (6);
• a conveyor extending in the direction of a mine face for receiving and removing cut material;
• a carriage displaceable on guides extending in a longitudinal direction of the machine;
• a conveyor chute that is designed as an upwardly open chute over an entire length of the conveyor;
• and
• a pivotable, rear frame part (10) articulately connected with the machine frame (3), and cardanically connected to a part of the machine frame (3) comprising the tubular guides (13),
• wherein
• the cutting arm (6) is pivotably mounted on the carriage (4),
• the carriage (4) carries guide rods (12) extending in the longitudinal direction of the machine,
• the guide rods (12) engage with tubular guides (13) of the machine frame (3),
• the carriage (4) is designed as an upwardly open chute comprising side cheeks in which is positioned a pivot axis (5) for vertical pivoting of the cutting arm (6),
• the tubular guides (13) are arranged between crawler mechanisms (2), and the tubular guides (13) are connected to one another by braces or plates (17) extending transversely to longitudinal axes of the tubular guides (13),
• a frame part (9) capable of being pivoted about at least one pivot axis (8) extending transversely to the longitudinal direction of the machine is articulately connected to the frame (3) comprising the tubular guides (13), and
• inner contours of the tubular guides (13) are shaped by use of curved generatrices.