DE8500525U1 - DEVICE FOR CONVERTING A LIFTING MOTION INTO A ROTATING MOTION - Google Patents

Description

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Patent attorney! D: iPL ^: .-ING. * Ä'i>'o'LF spalthoff D-4300 Essen 1 ■ Pelmanstrasse 31 · P.O. Box 340220 · Telephone (0201) 772008

"Device for converting a lifting movement into a rotary movement"

The invention relates to a device for converting a Stroke movement into a rotary movement, which a both ends by means of a lid or the like. has closed, cylinder-owning housing in which a piston can be acted upon by pressure medium is arranged displaceably, which is coupled via an external thread with an internal thread of the cylinder and one after receives externally guided output shaft, which is equipped with an external thread, which with an internal thread of the Piston is engaged.

Such devices, generally as rotary piston cylinders referred to, are often used in practice to convert the stroke movements of their pistons into rotary movements of their output shafts. The piston can be acted upon by means of fluids or Gases take place. The mutually engaged threads between the output shaft and piston on the one hand and piston and cylinder on the other hand are designed in opposite directions, so that the axial movement of the piston turns into a cumulative rotary movement

Dresdner Bank Essen 403349800 (Bi-E- äoOfldoSO} "- Sparkasse ösen 209 130 (BLZ 36050105) · FostgUo Essen 335 07-433 (BLZ 36010043)

Patent attorney; D&PL \ -ftsiGi. Äß'ÖLF SPALTHOFF

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D-4300 Essen 1 · Pelmanstrasse 31 · P.O. Box 340220 · Telephone (0201) 772008

converts. The torque generated here is supported on the internal thread of the housing.

The size of the pivot angle of the known rotary piston cylinder is limited and dependent on the pitch of the aforementioned thread between the output shaft and piston on the one hand and piston and cylinder on the other hand and the resulting therefrom Total stroke. The swivel angle is therefore phi = 0 to phi = max.

The position of the diametrically arranged parallel keyways - pivot angle phi = 0 - in the output shaft is determined on the one hand by manufacturing-related tolerances and on the other hand by the intervention of the Thread: output shaft / piston on the one hand and piston / cylinder on the other.

The fixation of the keyway is found in the known Rotary piston cylinders as very expensive. This is due to the fact that the keyways of the output shaft only after assembly of the complete rotary piston cylinder can be drawn. Then this must be taken apart again and the keyways must be milled, after which the final assembly can take place.

Dresdner Bank Essen 403349800 (BL & SoOedOfeO) ¹ Sparkasse fiäeeu: 2C9130 (BLZ 36050105) Postgiro Essen 33507-433 (BLZ 36010043

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PATENT Attorney ¹ DiPL: .- I: NG. ÄVo'LF SPALTHOFF

D-4300 Essen 1 · Pelmanstrasse 31 · Postfadi 340220 · Telephone (0201) 772008

The invention is based on this state of the art the object of improving a device of the type mentioned at the outset while avoiding the disadvantages mentioned above, that any position of the parallel keys depending on the hole pattern of the flange of the housing even when installed of the piston including the output shaft in a simple and can be adjusted more quickly.

According to the invention this is achieved in that the internal thread of the cylinder is located in a cylindrical, in the housing extending approach of the cover, which on which the Output shaft facing away from the end of the housing is present that in the housing in the region of the attachment of the cover a transverse to the central longitudinal axis of the housing extending bore is provided in which there is a screw bolt and in which the outer peripheral surface of the approach of the lid extends.

It is advantageous in the one running transversely to the central longitudinal axis of the housing Bore an internally threaded sleeve inserted into which the screw bolt is screwed, v / elcher with his Shank passes through a clamping sleeve, which is also arranged in the bore. Both the sleeve and the clamping sleeve are

Dresdner Bank Essen 403349800 (BL236O8 <50'80) '· Spejhass "e £ ssea ^ rö 130 (BLZ 36050105) ■ Postgiio Essen 33507-433 (BLZ 36010043

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Patent attorney; Di PlL-IiNfc. Ä'ö'ÖLF SPALTHOFF

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D-4300 Essen 1 · Pelmanstrasse 31 · Postfach 3402 20 ■ Telephone (0201) 772008

- 4 profiled so that they cannot be rotated in the bore.

This configuration ensures that the position of the keyways can be adjusted or even adjusted by loosening the screw bolt is correctable. Once the position has been set, it is fixed by tightening, so that the keyways are in the desired position is guaranteed.

An embodiment of the invention is based on the drawing explained in more detail, namely shows:

Figure 1 is a longitudinal section of one end of a rotary piston cylinder and

FIG. 2 shows a cross section of one end of the rotary piston cylinder.

1 with the rotary piston cylinder is referred to, the housing is closed on both sides by means of a cover, of which only one cover 3 is shown in the present case. The housing 2 has a cylinder 4 in which the pressurized KoI

Dresdner Bank Essen 403349800 (BLZ 300800 "8O) '- Spärk« iäejien.209130 (BLZ 36050105) · Postgiro Essen 33507-433 (BLZ 36010043

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PATENT ADVOCATE! D ^ PL ^: .-INfe. AWlF SPALTHOFF

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D-4300 Essen 1 · Pebnanstrasse 31 · P.O. Box 340220 ■ Telephone (0201) 772008

- 5 -ben 5 is slidably arranged. ■:

The cover 3 has a cylindrical extension 6 extending into the housing 2 ″ i , the inner peripheral surface of which is aligned with the cylinder 4 of the housing 2 so that the piston 5 can enter this cylindrical extension 6.

The piston 5 is connected to the internal thread 8 via its external thread 7 of the cylindrical extension 6 of the cover 3 is coupled and takes the output shaft 9 guided to the outside. This does not protrude from the shown end of the housing 2 to the outside, with a keyway in the outwardly protruding shaft stub is located. The output shaft 9 is equipped with an external thread 10, which * is in engagement with an internal thread, not shown, of the piston 5.

In the housing 2 is in the area of the cylindrical extension 6 of the Cover 3 is provided with a bore 11 running transversely to the central longitudinal axis of the housing 2, into which the outer peripheral surface 12 of the extension 6 of the cover 3 extends. In the bore 11 is one with Internally threaded bushing 13 is used, into which the screw bolt 14 is screwed. The screw bolt 14 interspersed with

Dresdner Bank Essen 403 349800 (BLE 360800 * 80) * · Sprfrk «sie.Kw«! B.?, 09130 (BLZ 360SOLOS) · Postgiro Essen 33S07-433 (BLZ 360 10043)

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PATENT AGENTiDI-PL-J-IKC ?. 'A ^ ÖU * SPALTHOFF

D-4300 Essen 1 · Pelmanstrasse 31 · PO Box 340220 'Telelon (0201) 772008

its shaft 15 has a clamping sleeve 16, which is also arranged in the bore 11.

Both the sleeve 13 and the clamping sleeve 16 are profiled, so that they are fixed in the bore 11 so that they cannot rotate.

By tightening the screw bolt 14, the clamping sleeve is over its head in the interior of the bore 11 in the direction of the Bush 13 drawn, the outer peripheral surface pressing against the outer peripheral surface 12 of the projection 6 of the cover 3, below simultaneous bracing of the approach 6 in this position.

By loosening the screw bolt 14, the cover 3 and thus the The position of the keyway on the stub shaft of the output shaft 9 can be set and corrected if necessary. The desired position is fixed again by tightening the screw bolt.

With regard to the other components, rotary piston cylinders are known, so that there is no need to discuss them.

Dresdner Bank Essen 403349800 (BL & äoOeöoisO) '· Spa'rkesiie.P.VMij.W? 130 (BLZ 36050105) Postgiro Essen 33507-433 (BLZ 3601001

Claims (3)

Γ β "* PATENTANWALT DI'KL.ilNG.rÄDpLF SPALTHOFF D-4300 Essen 1 · Pelmanstrasse 31 · PostfaA 340220 · Telephone (0201) 772008 Rudolf Hausherr & Söhne GmbH & Co KG 9.1. 1285 Wuppertaler Strasse 4322 Sprockhövel 1 24 780 S / 0 1 - PROTECTION CLAIMS: 1. Device for converting a stroke movement into a rotary movement, which is a both ends by means of a cover (3) or the like. closed housing (2) having an egg'-en cylinder (4), in which a piston (5) can be displaced and can be acted upon by pressurized medium and which is coupled via an external thread (7) to an internal thread (8) of the cylinder (5) and an outwardly guided output shaft (9) which is equipped with an external thread (10) which engages with an internal thread of the piston (5), characterized in that the internal thread (8) of the cylinder (5) is in a cylindrical, in the housing (2) extending extension (6) of the cover (3) is located, which is present at the end of the housing (2) facing away from the output shaft (9) that in the housing (2) in Dresdner Bank Essen 403 349 800 (BLZ '& Oecto 6θ) ' ■ äpirkeeee Eksen 209130 (BLZ 360 50105) · Postgiro Essen 335 07-433 (BLZ 360100 PATENT ADVOCATE! ϋΪΡΐί-ϊΝ ^. ABÖ'LF SPALTHOFF lit ill ■ «■ t · c · - * ■ · D-4300 Essen 1 · Pelmanstrasse 31 · P.O. Box 340220 · Telephone (0201) 772008 Area of the approach (6) of the cover (3) a transverse to the central longitudinal axis of the housing (2) extending bore (11) is provided in which a screw bolt (14) is located and in which the outer Umfiäne (12) of the approach (6) of the Cover (3) extends. 2. Apparatus according to claim 1, characterized in that in the transversely to the central longitudinal axis of the housing (2) extending bore (11) an internally threaded bushing (13) is inserted into which the screw bolt (14) is screwed, which with his Shaft (15) passes through a clamping sleeve (16) which is also arranged in the bore (11). 3. Apparatus according to claim 1 or 2, characterized in that the sleeve (13) and the clamping sleeve (16) are profiled. Dresdner Bank Essen 403 349800 (BLZ> 3 <$ 0 «(Joto) '· Sparkasse Biien 209130 (BLZ 36050105) Postgiro Essen 335 07-433 (BLZ 36010043