Title of Invention | DEEP ROLLING MACHINE FOR CRANKSHAFTS |
---|---|
Abstract | In a deep rolling machine known from the state of the art, the power unit (13) is attached in a gate (31) such that it can be moved in the direction of force exertion (30). The power unit (13) is connected with articulation at one end (32) via a joint (33) to the end (11) of a shearing arm (3) of the deep rolling unit (15). The free end (34) of the gate (31) is fitted with a back up roller (35) routed along a curved web (36), which has a gap in the second end (11) of the shearing arm (3). In the closed position of the power unit (13), three joints (28, 29, 33) form a triangle (37). One of the joints (28) points to the rotating joint (5), via which the two shearing arms (3 and 4) of the deep rolling unit (15) are connected to one another with articulation. Also in the closed position, a crank lever (27) reaches the limit stop (39) at the end (12) of the shearing arm (4). |
Full Text | Deep Rolling Machine for Crankshafts The invention concerns a deep rolling machine for crankshafts in accordance with the preamble of: Patent Claim 1. This type of deep rolling machine, in particular a deep rolling unit, is known from the German utility patent DE 297 13 627 U1 and the corresponding European patent, EP 0 881 041 B1. The patent holder has been building a deep rolling machine known from these patents for several years which has proven itself very successful in use. At the same time, the existing machine has several features which prompted us to further develop and improve it. Accordingly, the objective of the present invention is to simplify and improve the existing deep rolling machine. In accordance with the invention, this task is solved by the properties of patent claim 1. Beneficial forms and variations of the deep rolling machine are the subject of the sub-claims related to patent claim 1. A series of significant advantages arise from the solution. For example, we were able to significantly reduce the peak height, i.e. the height above floor level of the axis of the rotary drive for the crankshaft. Whereas the peak height of the existing machine was 1,400 mm, the peak height of the enhanced machine was lowered to 1,100 mm. Thus, the enhanced machine can be better SI/cs 050417WO - 2 - integrated with the remaining machinery for processing crankshafts as no lifting platform is necessary. The splash lubrication of the deep rolling tools was also improved. The routings of cables and hoses to the individual deep rolling unit of the deep rolling machine were simplified. The weight balance of the deep rolling unit for the suspension system in the machine was improved. Finally, the modifications allowed a common pressure medium, compressed oil, to be used to operate both the power unit and the piston cylinder unit which supports the suspension of the deep rolling unit on the suspension system elastically. The following section describes the invention with a design example. The following figures are schematic and show on a smaller scale: - Fig. 1 Side view of a deep rolling unit in the open position. - Fig. 2 Side view of a deep rolling unit in the closed position. If we view the deep rolling machine (1) from the operating side (2), a first and second shearing arm (3 and 4) follow, which are connected with articulation by a first rotating joint (5). The first shearing arm (3), the second shearing arm (4) and the first rotating joint (5) form a deep rolling unit in shear-type construction, of which there are several in the deep rolling machine (1). The deep rolling machine (1) for crankshafts (not shown) has a rotary drive (not shown) for the crankshaft, which can be rotated around an axis (6). The two shearing arms SI/cs 050417WO - 3 - (3 and 4) each carry parts of a deep rolling tool (15), i.e. a work roller head (9) and a support roller head (10) opposite one another, at the first ends (7 and 8) of the axis (6) facing the axis (6). The two shearing arms (3 and 4) at the second ends (11 and 12) facing away from the axis (6) are driven by a power unit (13) connected between them. This is followed by a suspension system (14) for each deep rolling unit (15) of the deep rolling machine (1), which can be moved and locked in place along a crossbeam (16) on the deep rolling machine (1) in the direction of the axis (6) . The power unit (13) between the two second ends (11 and 12) of the shearing arms (3 and 4) generates a closing and opening movement and the deep rolling force of the deep rolling unit (15) at the corresponding first ends (7 and 8) of the two shearing arms (3 and 4). When the deep rolling unit (15) opens, the two first ends (7 and 8) open to an opening width (18) greater than twice the construction radius (17) of a crankshaft. The second shearing arm (4) is hinged on a first shank (19) of a first crank lever (21) which is attached to the suspension system (14) with a pivot motion via a second rotating joint (20). The second shank (22) of the first crank lever (21) is connected to a piston cylinder unit (23) which in turn is connected to the suspension system (14) . The outline of the first crank lever (21) in Fiigure 1 is drawn with hatching to increase the clarity. The first end (8) of the second shearing arm (4) is supported on the suspension system (14) via a roller SI/cs 050417WO - 4 - (24). The web (25) of the roller (24) for the suspension system (14) is curved. With the first end (26), the power unit (13) is connected with articulation via a second crank lever (27) and a third and fourth joint (28 and 29) to the second end (12) of the second shearing arm (4). Until this point, the present deep rolling machine 1 is largely the same as the deep rolling machine which is familiar from the state-of- the-art mentioned above. In contrast to the familiar arrangement, the power unit (13) is aligned in the direction of the exertion of force (30) within a gate (31) and can be moved along it. With its second end (32), the power unit (13) is connected with articulation via a fifth joint (33) to the second end (11) of the first shearing arm (3). The free end (34) of the gate (31) is fitted with a back up roller (35) routed along a curved web (36), which has a gap in the second end (11) of the first shearing arm (3). If the power unit (13) increases the distance between its joints (28 and 33), the curved web (36) and the back up roller (35) change the position of the second crank lever (27) and the shearing arms (3 and 4) so that the ends (7 and 8) approach one another. This results in the image in F'igure 2. As Figure 2 shows, the third (28), fourth (29) and fifth joints (33) form a triangle (37) when the deep rolling unit (15) is in the closed position where a, b and c are the sides of the triangle. The direction of force exertion (30) between the third and fifth joints (28 and 33) forms one side (a) of the triangle (37). The other SI/cs 050417WO - 5 - side of the triangle (c) is formed by the direct connection line (38) between the fourth and fifth joints (29 and 33). As a result of this layout, the third joint (28), as a corner of the triangle (37), points to the first rotating joint (5). In order to stabilise the closed position, a limit stop (39) is also incorporated, which is reached by the second crank lever (27) on the second end (12) of the second shearing arm (4). The curved web (36) is designed such that it generates a constant torque while the deep rolling unit (15) closes. The curved web (36) has a straight section (43) for the working area of the power unit (13) for deep rolling. The suspension system (14) protrudes beneath the crossbeam (16) and ends in a resiliently flexible element (40). The piston cylinder unit (23) is connected to the suspension system (14) via the resiliently flexible element (40). Joints (41 and 42) are located between the second shank (22) of the first crank lever (21) and the resiliently flexible element (40) and the piston cylinder unit (23). While in the state-of-the-art mentioned at the beginning, a power element comparable to the pi ston cylinder unit (23) was charged with a gaseous pressure medium due to the required elasticity of the suspension of the deep rolling unit, this can be achieved by charging the piston cylinder unit (23) with a liquid pressure medium such as hydraulic oil, for example, due to the elasticity of the resiliently flexible element (40). This is the same pressure medium used to operate the power unit (13). The advantage of this arrangement is that only a single, liquid pressure medium is required for the deep rolling machine (1). The previous state-of- the-art deep rolling machine required two pressure media, a gaseous medium and a liquid medium. SI/cs 050417WO - 6 - Reference drawing list: 1 Deep rolling machine 2 Operator side 3 First shearing arm 4 Second shearing arm 5 First rotating joint 6 Axis of rotation 7 First end (shearing arm 3) 8 First end (shearing arm 4) 9 Deep rolling head 10 Support roller head 11 Second end (shearing arm 3) 12 Second end (shearing arm 4) 13 Power unit 14 Suspension system 15 Deep rolling unit 16 Crossbeam 17 Construction radius 18 Opening width 19 First shank 20 Second rotating joint 21 First crank lever 22 Second shank 23 Piston cylinder unit 24 Roller 2 5 Web (of roller 24) 2 6 First end 27 Second crank lever 28 Third joint 29 Fourth joint 30 Direction of force exertion SI/cs 050417WO - 7 - 31 Gate 32 Second end 33 Fifth joint 34 Free end 35 Back up roller 36 Curved web 37 Triangle 38 Connecting line 39 Stop 40 Resiliently flexible element 41 Joint 42 Joint 43 Straight section a Triangle side b Triangle side c Triangle side SI/cs 050417WO -8- PATENT CLAIMS 1. Deep rolling machine (1) for crankshafts, which contains a rotary drive which rotates around an axis (6) for the crankshaft to be deep rolled, and at least one deep rolling unit (15) which is flexibly attached to a suspension system (14) in a shears-type construction with a first (3) and a second shearing arm (4), which are connected to one another via a first rotating joint (5) such that they can rotate, whereby the two shearing arms (3, 4) carry parts of deep rolling tool, namely a work roller head (9) and a support roller head (10) at the first ends (7, 8) facing the axis (6) opposite one another and are driven by a power unit (13) on the second ends (11, 12) facing away from the axis (6), whereby the suspension system (14) can be moved along the axis (6) of the rotary drive for the crankshaft and locked in position and the power unit (13) brings about an opening width (18) greater than twice the construction radius (17) of the crankshaft to be deep rolled at the two first ends (7, 8) of the two shearing arms (3, 4) to generate closing and opening movements and a deep rolling force by means of hinges connecting the second shearing arm (4) to a first shank (19) of a first crank lever (21) which is attached via a second rotating joint (20) to the suspension system (14), while the second shank {?.?.) of the first crank lever (21) is connected to a SI/cs 050417WO piston cylinder unit (23) attached to the suspension system (14), whereby the first end (8) of the second shearing arm (4) is supported via a roller (24) on the suspension system (14), while the power unit. (13) is connected with articulation at a first end (26) via a second crank lever (27) to the second end (1.2) of the second shearing arm (4) via a third (28) and fourth joint (29), characterised by the fact that - the power unit (13) is attached such that it can move in the direction of force exertion (30) within a gate (31), - the power unit (13) is connected with articulation at the second end (32) via a fifth joint (33) to the second end (11) of the first shearing arm (3), - a free end (34) of the gate (31) is fitted with a back up roller (35), which is routed along a curved web (36), with a gap at the second end (-1.1) of the first shearing arm (3), - in the closed position of the deep rolling machine (15) the third (28), fourth (29) and fifth joint (33) form a triangle (37) with one another, in which the third joint (28) points to the first rotating joint (5), while - the second crank lever (27) reaches the limit stop (39) at the second end (12) of the second shearing a rm (4) . Deep rolling machine according to Claim 1 .is characterised by the fact that the piston cylinder unit (23) is connected to the suspension system (14) via a resiliently SI/cs 050417WO -10— flexible element (40) and joints (41, 42) are lit ted between the second shank (22) of the first crank lever (21) and the resiliently flexible element (40) and the piston cylinder unit (23). 3. Deep rolling machine according to Claim 2 characterised by the piston cylinder unit (23) being charged with a liquid pressure medium. 4 . Deep rolling machine according to Claim 1 SI/cs 050417WO characterised by the power unit (13) being charged with a liquid pressure medium. In a deep rolling machine known from the state of the art, the power unit (13) is attached in a gate (31) such that it can be moved in the direction of force exertion (30). The power unit (13) is connected with articulation at one end (32) via a joint (33) to the end (11) of a shearing arm (3) of the deep rolling unit (15). The free end (34) of the gate (31) is fitted with a back up roller (35) routed along a curved web (36), which has a gap in the second end (11) of the shearing arm (3). In the closed position of the power unit (13), three joints (28, 29, 33) form a triangle (37). One of the joints (28) points to the rotating joint (5), via which the two shearing arms (3 and 4) of the deep rolling unit (15) are connected to one another with articulation. Also in the closed position, a crank lever (27) reaches the limit stop (39) at the end (12) of the shearing arm (4). |
---|
03700-kolnp-2007-correspondence 1.1.pdf
03700-kolnp-2007-correspondence others.pdf
03700-kolnp-2007-description complete.pdf
03700-kolnp-2007-international publication.pdf
03700-kolnp-2007-international search report.pdf
03700-kolnp-2007-pct request form.pdf
03700-kolnp-2007-translated copy of priority document.pdf
3700-KOLNP-2007-(07-01-2013)-ANNEXURE TO FORM 3.pdf
3700-KOLNP-2007-(07-01-2013)-CORRESPONDENCE.pdf
3700-KOLNP-2007-(07-01-2013)-PETITION UNDER RULE 137.pdf
3700-KOLNP-2007-(09-04-2012)-CORRESPONDENCE.pdf
3700-KOLNP-2007-(09-04-2012)-ENGLISH TRANSLATION.pdf
3700-KOLNP-2007-(26-02-2013)-CORRESPONDENCE.pdf
3700-KOLNP-2007-(26-02-2013)-OTHERS.pdf
3700-KOLNP-2007-(27-12-2012)-ABSTRACT.pdf
3700-KOLNP-2007-(27-12-2012)-CLAIMS.pdf
3700-KOLNP-2007-(27-12-2012)-CORRESPONDENCE.pdf
3700-KOLNP-2007-(27-12-2012)-DESCRIPTION (COMPLETE).pdf
3700-KOLNP-2007-(27-12-2012)-DRAWINGS.pdf
3700-KOLNP-2007-(27-12-2012)-ENLISH TRANSLATION.pdf
3700-KOLNP-2007-(27-12-2012)-FORM 1.pdf
3700-KOLNP-2007-(27-12-2012)-FORM 2.pdf
3700-KOLNP-2007-(27-12-2012)-FORM 3.pdf
3700-KOLNP-2007-(27-12-2012)-FORM 5.pdf
3700-KOLNP-2007-(27-12-2012)-OTHERS.pdf
3700-KOLNP-2007-CORRESPONDENCE OTHERS 1.1.pdf
3700-KOLNP-2007-CORRESPONDENCE OTHERS 1.2.pdf
3700-KOLNP-2007-INTERNATIONAL PRELIMINARY REPORT.pdf
3700-KOLNP-2007-INTERNATIONAL SEARCH AUTHORITY REPORT.pdf
Patent Number | 256030 | |||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Indian Patent Application Number | 3700/KOLNP/2007 | |||||||||||||||
PG Journal Number | 17/2013 | |||||||||||||||
Publication Date | 26-Apr-2013 | |||||||||||||||
Grant Date | 22-Apr-2013 | |||||||||||||||
Date of Filing | 01-Oct-2007 | |||||||||||||||
Name of Patentee | HEGENSCHEIDT-MFD GMBH & CO. KG. | |||||||||||||||
Applicant Address | HEGENSCHEIDT PLATZ, 41812 ERKELENZ | |||||||||||||||
Inventors:
|
||||||||||||||||
PCT International Classification Number | B24B 39/04,B24B 5/42 | |||||||||||||||
PCT International Application Number | PCT/EP2006/003016 | |||||||||||||||
PCT International Filing date | 2006-04-03 | |||||||||||||||
PCT Conventions:
|