JP2007247898A - Clutch device for printing machine - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To offer a clutch device for a printing machine wherein a design of a sub-assembly is omitted, and a whole system is preliminarily assembled and can be installed in a structure space. <P>SOLUTION: The clutch device is fixed and arranged between a machine stand (26) and a register plate(25) for a printing machine. A tolerance in an installation dimension is compensated via an elastic bearing for supporting an output shaft(4) and a spur gear (8) in an axial direction. The elastic bearing (7)concerned is contacted and supported via a rigid cylinder housing of a cylinder (22) to a register plate(25). A shaft(1) is placed concentrically with a plate cylinder shaft(2) and also screw connected to the plate cylinder shaft (2). <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a clutch device in a printing press for selectively connecting an output shaft to an output portion of an electric motor or a gear train of a main drive device of a printing press according to the superordinate concept portion of claim 1 of the claims. About.

  It has been conventionally known that a clutch of a printing press is disposed between a switching cylinder and a machine stand in the axial direction. With this arrangement, the thrust bearing must be held under a slight bias (bias force) via a spring element, which bias is always generated via an axially movable reciprocating piston. For this reason, the entire system consisting of spur gears and switching cylinders in the assembled state is disadvantageously complicated and expensive, and the component set can only be assembled and disassembled via a plurality of subassemblies.

  SUMMARY OF THE INVENTION An object of the present invention is to provide a clutch device in a printing press for selectively connecting an output shaft to an output section of an electric motor or a gear train of a main drive device of a printing press. It is to be improved so that the whole can be assembled in advance and installed in the structure space.

  This problem is solved by the features of claim 1. Embodiments and advantages according to the invention can be seen from the dependent claims.

  According to the invention, it is proposed that the clutch device be fixed and clamped between the machine stand (or the side wall of the machine stand) and the register plate. In that case, the bearing device is no longer in contact with and supported by the movable reciprocating piston in the cylinder, but is supported by contact with the register plate via a rigid cylinder housing. According to the invention, tolerances in installation dimensions are compensated via elastic bearings, for example spring support bearings.

  The clutch device according to the present invention includes a twin clutch having two multi-plate clutches, an output shaft, a cylinder, two pistons for operating each clutch, and a shaft operatively connected to an electric motor. A spur gear that is rigidly coupled to the output shaft (so as not to rotate) and an idler gear that is driven by the gear train of the main drive unit, the shaft operatively connected to the motor being The spur gear can be releasably connected to the spur gear via the other clutch, and the idle gear can be releasably connected to the output shaft via the other clutch.

  According to the present invention, the clutch device is fixedly arranged (clamped) between the machine stand and the register plate of the printing press, and the tolerance in installation dimensions supports the output shaft and the spur gear in the axial direction. Compensated for through elastic bearings. In this case, the elastic bearing is supported in contact with the register plate via the rigid cylinder housing of the cylinder, and the shaft operatively connected to the motor is placed concentrically on the plate cylinder shaft (Plattenzylinderwelle). The plate cylinder shaft is screwed.

  With the concept according to the invention, the design of the sub-assembly can be saved and the entire system can be advantageously pre-assembled and fitted into a predetermined structural space.

  Hereinafter, the present invention will be described in detail with reference to the embodiments shown in the drawings.

  The clutch device in the printing press according to the present invention for selectively connecting the output shaft 4 to the output section of the electric motor or the gear train of the main drive device of the printing press includes the output shaft 4 and the two clutches 13 and 14. So as not to rotate to the output shaft 4 and the shaft 22 operatively connected to the motor, the twin clutch including the piston 23 and the piston 24 for operating the clutches 13 and 14. It has a spur gear 8 that is tightly coupled and an idler gear 20 that is driven by the gear train of the main drive. The shaft 1 can be releasably connected to the spur gear 8 via the clutch 14, and the idle gear 20 can be releasably connected to the output shaft 4 via the clutch 13.

  In this case, the clutch device is fixedly arranged (clamped) between the machine stand 26 and the register plate 25 of the printing machine, and the tolerance in installation dimensions supports the output shaft 4 and the spur gear 8 in the axial direction. Compensation through an elastic bearing 7 (for example, a spring support bearing). This bearing 7 is in contact with and supported by the register plate 25 via a rigid cylinder housing of the cylinder 22.

  As can be seen from FIG. 1, the shaft 1 is placed concentrically with the plate cylinder shaft 2 and is screwed to the plate cylinder shaft 2. The shaft 1 can be displaced together with the plate cylinder shaft 2 by a predetermined play in the axial direction, preferably by ± 1 mm. A connecting member 3 for the motor shaft of the motor is screwed to the shaft 1.

  The output shaft 4 that is firmly coupled to the spur gear 8 is supported on the shaft 1 via bearings 5, 6, 7. The bearing 5 receives an axial clutch force (about 15000 N in total), and the bearing 6 is disposed between the shaft 1 and the spur gear 8 to radius the output shaft 4 and the spur gear 8 according to the present invention. It is used for guiding in the direction and allows the shaft 1 to be displaced in the axial direction by a predetermined play.

  Based on the present invention, the bearing 5 and the bearing 7 are elastically supported. An axial bias (preferably about 1000 N) is applied via a pressure member 9 and a spring 10 operatively connected to the pressure member 9.

  The elastic bearing 7 eliminates the time-consuming design process (dimension determination process) due to the automatic compensation of the installation tolerances made possible thereby, making the assembly and disassembly of the clutch device very easy. This significantly reduces dimensional determination errors during initial assembly and customer use. The bearing 7 is disposed between the spur gear 8 and the pressure member 9 supported by contact with the cylinder bottom 22 via the spring 10, and the bearing 5 includes the side wall 26 and the output shaft 4 as shown in FIG. And is abutted and supported by the side wall 26.

  In an advantageous embodiment of the invention, the bearing base of the bearing 6 for abutting and supporting the meshing part and for receiving radial loads can be improved by suitable adaptation of the shaft 1. The bearing 6 can be divided into two needle bearings or roller bearings.

  In the illustrated embodiment, the spur gear 8 is arranged on the upper side (outer side) in the radial direction of the shaft 1 and forms an outer disk holder of the clutch 14 together with the shaft 4. A bearing 19 for supporting the idle gear 20 disposed on the upper side (outer side) in the radial direction of the shaft 1 is disposed on the opposite side of the clutch 14 from the shaft 1. The inner disk holder of the clutch 14 is firmly connected to the shaft 1. Further, the output shaft 4 is disposed at the end of the shaft 1 in the radial direction and on the side of the side wall 26 of the spur gear 8, and is firmly coupled to the inner disk holder of the clutch 13. The outer disk holder of the clutch 13 is formed by an idle gear 20.

  Bearings 12 to 11 are provided for rotational insulation of the stationary pistons 23 and 24 of the clutches 13 to 14. In this case, the bearing 11 attached to the piston 24 of the clutch 14 is disposed between the piston 4 and the pressure member 21 that can rotate on the shaft 1 and can move in the axial direction. A bias is applied (biased) by the annular spring 15 via the pressure member 21. The bearing 12 attached to the piston 23 of the clutch 13 is disposed between the pressure member 18 operatively connected to a pin (plunger) 17 for operating the clutch 13 and the piston 23, and is mounted on the pin 17. A bias is provided via a pressure member 18 by a spring 16 disposed on the surface. The pin 17 is guided through the idler gear 20 in the direction of the clutch 13.

  The bearings 11 and 12 are advantageously formed as angular contact needle bearings (Schraegnadellager), which have been developed especially for receiving axial loads and for large installation dimensions. A deep groove ball bearing (Rillenkugellagern) or a wiring bearing (Drahtringlagern) can be advantageously employed as well.

  An idle spur gear 20 driven by the main drive of the printing press is supported on a roller bearing 19. The bearing play of the bearing 19 is such that there is a minimum bearing play when both spur gears 8 and 20 rotate together in the form of a block in the clutch engaged state (that is, the state where the clutch 13 is engaged). Designed to be During relative rotation, the rolling elements in the bearing 19 always rotate with no load.

  The twin clutch has a cylinder 22. In the cylinder 22, the two annular pistons 23 and 24 apply the clutch force to the clutch 13 to the clutch 14 independently of each other. In this case, the pistons 23 and 24 are actuated by a spring force in a non-pressure state and engage the clutch 13 or the clutch 14. The twin clutch is ventilated pneumatically.

  In accordance with the present invention, the cylinder device having the pistons 23, 24 and the cylinder bottom is placed concentrically in the hole of the shaft seal ring in the register plate 25. Since the spring force in the cylinder 22 axially tightens the entire clutch multi-plate set between the register plate 25 and the machine stand side wall 26, the screw coupling to the twin clutch register plate 25 is advantageous. Can be omitted. The cylinder only needs to be prevented from being rotated by a bolt or a screw, so that assembly is facilitated.

  In the clutch 13, the operating force from the piston 23 is guided to the clutch multi-plate set through the bearing 12, the pressure member 18, and the pressure pin 17 guided through the idle gear 20. In the clutch 14, the operating force of the piston 24 is guided to the clutch multi-plate set via the bearing 11 and the pressure member 21. Preferably, the clutch 13 and the clutch 14 are designed for a torque of 500 Nm.

  The piston 23 and the piston 24 can vent independently of each other so that the clutch 13 and the clutch 14 can operate independently of each other.

  When both the clutch 13 and the clutch 14 are engaged, the idle gear 20 drives the output shaft 4 and the shaft 1. In that case, the motor must be shut down. On the other hand, when the clutch 13 is disengaged (geluefteter) and the clutch 14 is engaged, the output shaft 4 is driven by the shaft 1, i.e. by the electric motor. When the clutch 14 is released and the clutch 13 is engaged, the output shaft 4 is driven by the idle gear 20. When both clutches 13 and 14 are released (ventilated), the output shaft 4 stops and the shaft 2 can be driven by the electric motor.

  This clutch device is installed in the form of a complete unit, and the cylinder is restricted (restricted) by the internal spring force and supported by the shaft 1 in the supplied state. A retaining ring 27 is provided so that the shaft 1 cannot be detached from the clutch 14. Further, the bearing 5 can be held by the output shaft 4. For assembly, the clutch device is screwed together with the shaft 1 to the shaft 2 of the plate cylinder, and then the printing machine's moving unit is incorporated into the shaft 1.

  As already mentioned, when the register plate 25 is assembled, the cylinder 22 is placed concentrically therein and is prevented from rotating. All the spring sets inside the clutch are tightened by tightening the register plate 25. Thereby, the clutch device is used without further adjustment process.

Sectional drawing of the clutch apparatus based on this invention.

Explanation of symbols

1 axis 2 plate cylinder axis (Plattenzylinderwelle)
3 connecting member 4 output shaft 5 bearing 6 bearing 7 bearing 8 spur gear 9 pressure member 10 spring 11 bearing 12 bearing 13 clutch 14 clutch 15 annular spring 16 spring 17 plunger 18 pressure member 19 roller bearing 20 idle gear 21 pressure member 22 cylinder 23 Piston 24 Piston 25 Register plate 26 Side wall 27 Retaining ring

Claims (10)

An output shaft (4);
A twin clutch with two clutches (13, 14) (meshing or frictional);
A cylinder (22) having a piston (23) and a piston (24) for operating each clutch (13, 14);
A shaft (1) operatively connected to the electric motor;
A spur gear (8) coupled to the output shaft (4) so as not to rotate;
An idler gear (20) driven by the gear train of the main drive;
Have
The shaft (1) can be releasably connected to the spur gear (8) via one clutch (14),
The idle gear (20) is releasably connectable to the output shaft (4) via the other clutch (13), and the output shaft ( 4) In a clutch device for a printing press for selectively connecting
The clutch device is fixedly disposed between the machine stand (26) and the register plate (25) of the printing press,
Tolerances in installation dimensions are compensated via elastic bearings (7) for axially supporting the output shaft (4) and spur gear (8),
The elastic bearing (7) is supported in contact with the register plate (25) via the rigid cylinder housing of the cylinder (22),
A clutch device for a printing press, characterized in that the shaft (1) is placed concentrically with the plate cylinder shaft (2) and screwed to the plate cylinder shaft (2). The bearing (7) is arranged between the spur gear (8) and a pressure member (9) supported in contact with the cylinder bottom (22) via a spring (10). A clutch device for a printing press according to claim 1. The output shaft (4) and the spur gear (8) are supported in the axial direction via a further bearing (5),
An axial bias of the bearing (5) is provided by the pressure member (9);
The bearing (5) is disposed between the side wall (26) and the output shaft (4) and supported by the side wall (26).
In order to guide the output shaft (4) and the spur gear (8) in the radial direction, another bearing (6) is provided between the shaft (1) and the spur gear (8),
3. A clutch device for a printing press according to claim 1 or 2, characterized in that the bearing (6) allows axial displacement of the shaft (1) only by a predetermined bearing play. Bearings (12) to (11) are provided for rotational insulation of the stationary pistons (23) to (24) of the clutches (13) to (14),
The bearing (11) attached to the piston (24) of the clutch (14) is disposed between the pressure member (21) and the piston (24) operatively connected to the inner disk holder of the clutch (14). And a bias is applied via the pressure member (21) by the annular spring (15) supported in contact with the shaft (1).
A bearing (12) attached to the piston (23) of the clutch (13) includes a pressure member (18) and a piston (23) operatively connected to a pin (17) for operating the clutch (13). Is biased via a pressure member (18) by a spring (16) disposed between and on a pin (17),
4. A clutch device for a printing press according to claim 1, wherein the pin (17) is guided through the idler gear (20) in the direction of the clutch (13). Printing according to any of the preceding claims, characterized in that the shaft (1) is placed concentrically on the plate cylinder shaft (2) and is screwed to the plate cylinder shaft (2). Clutch device for the machine. The spur gear (8) is arranged on the radial upper side (outer side) of the shaft (1) to form the outer disk holder of the clutch (14),
A bearing (19) for supporting an idler gear (20) arranged on the radial upper side of the spur gear (8) is arranged on the opposite side of the shaft (1) of the clutch (14),
The inner disk holder of the clutch (14) is coupled to the shaft (1) so as not to rotate,
The output shaft (4) is arranged at the upper end in the radial direction of the shaft (1) and at the end on the side wall (26) side of the spur gear (8) so as not to rotate to the inner disk holder of the clutch (13). Combined,
6. A clutch device for a printing press according to claim 1, wherein the outer disk holder of the clutch (13) is formed by an idle gear (20). The bearing play of the bearing (19) is designed such that there is a minimum bearing play when the idler gear (20) and the spur gear (8) rotate together in the form of a block, 7. The clutch device for a printing press according to claim 6, wherein the rolling element (Waelzkoerper) in (19) always rotates with no load. The pistons (23, 24) are actuated by spring force in the non-pressure state,
Twin clutch is pneumatically vented
The clutch device for a printing press according to any one of claims 1 to 7, characterized in that the pistons (23, 24) independently apply clutch forces to the clutch (13) to the clutch (14). . A cylinder device having a piston (23), a piston (24) and a cylinder bottom in the register plate (25) is placed concentrically in a hole in a well-end ring trough,
The spring force in the cylinder (22) clamps the entire clutch multi-plate set between the register plate (25) and the side wall (26) of the machine stand (frame) in the axial direction, so that the register plate (25) of the twin clutch The clutch device for a printing press according to any one of claims 1 to 8, characterized in that the screw connection to the printer is omitted. 10. The clutch device for a printing press according to claim 1, wherein the bearing (6) is divided into two needle bearings or roller bearings.

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