DE481C - Differential - screw winch with double speed and rapid decline - Google Patents

Differential - screw winch with double speed and rapid decline

Info

Publication number
DE481C
DE481C DE481DA DE481DA DE481C DE 481 C DE481 C DE 481C DE 481D A DE481D A DE 481DA DE 481D A DE481D A DE 481DA DE 481 C DE481 C DE 481C
Authority
DE
Germany
Prior art keywords
screw
differential
wheels
rapid decline
nut
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
DE481DA
Other languages
German (de)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
O Zobel
Original Assignee
O Zobel
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication of DE481C publication Critical patent/DE481C/en
Application filed by O Zobel filed Critical O Zobel
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66F—HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
    • B66F3/00—Devices, e.g. jacks, adapted for uninterrupted lifting of loads
    • B66F3/08—Devices, e.g. jacks, adapted for uninterrupted lifting of loads screw operated
    • B66F3/16—Devices, e.g. jacks, adapted for uninterrupted lifting of loads screw operated actuated through bevel-wheel gearings

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Geology (AREA)
  • Mechanical Engineering (AREA)
  • Structural Engineering (AREA)
  • Transmission Devices (AREA)
  • Friction Gearing (AREA)

Description

jedochbei«:5= —Zähneundbei ctd= —Zähne. 24 38however, with: 5 = - teeth and with ctd = - teeth. 24 38

Die Schraubenspindel hat ein einfaches Linksgewinde von δ/8" englisch= 15,87mm Steigung. Bei einer Umdrehung der 240 mm langenKurbel ist der Weg derselben = 2.2407t = 1477 mm· In derselben Zeit wird die Schraube um den 16/34 Theil ihres Umfänges nach rechts gedreht, während die Mutter gleichzeitig um 24/38 ihres Umfänges sich gedreht hat. Die absolute Fortbewegung der Schraube ist demnachThe screw has a simple left-hand thread of δ / 8 "English = 15,87mm gradient. In one revolution of the 240 mm long crank is the way the same = 2.2407t = 1477 mm · In the same time, the screw around the 16/34 part of their Umfänges turned to the right, while the mother of their 38 Umfänges has turned simultaneously by 24 /. the absolute movement of the screw is therefore

(16 24Λ
- I 15,87 mm = 0,557 mm. Das Ueber-24 Z°J (16 24Λ
- I 15.87 mm = 0.557 mm. The over- 2 4 Z ° J

14771477

0,5570.557

Wennif

setzungsverhältnifs ist hiernach =positional relationship is hereafter =

man unter Vernachlässigung der Reibung den Druck an der Kurbel = 15 kg annimmt, so wird durch diesen Mechanismus in dem vorliegenden Falle eine Last von etwa 15. —— kgif the pressure on the crank is assumed to be 15 kg, neglecting the friction, so In this case, this mechanism results in a load of about 15 - kg

0,5570.557

== ca. 40000 kg gehoben.== lifted approx. 40,000 kg.

Zur Erzielung eines schnelleren Rückganges nach erfolgter Hebung ist an dem anderen Ende der oben erwähnten Büchse g für das Rad b ein zweites konisches Rad ^1 mit 24 Zähnen entgegengesetzt angegossen, welches vorher aufser Eingriff war. Durch Drehen der um 10 mm excentrischen Büchse f mittelst des ausklinkbaren Handgriffs h um 180 Grad wird die in jener Büchse f gelagerte Kurbelaxe um 20 mm gehoben, so dafs jetzt zwischen den konischen Rädern α und bt ein Eingriff stattfindet, während α b und c d aufser Eingriff stehen. Durch die Drehung der Büchse / wird mittelst eines Ringes r gleichzeitig das feilenartig aufgehauene Keilstück k gehoben und dabei an das konische Rad d änfserlich angeprefst, um eine etwaige Drehung der Mutter jetzt zu verhindern. Diese hierdurch eingeschaltete Uebersetzung eignet sich gleichzeitig zum schnelleren Heben von (hier 19 mal) kleineren Lasten, also etwa von 2100 kg und zwar beim Drehen der Kurbel im entgegengesetzten Sinne.In order to achieve a faster decrease after the lifting has taken place, a second conical wheel ^ 1 with 24 teeth, which was previously out of engagement, is cast on the other end of the above-mentioned sleeve g for wheel b. F by rotating the mm to 10 eccentric bushing by means of the release handle h to 180 degrees in that bush mounted Kurbelaxe f 20 mm lifted; so that now α between the conical wheels and b t, an engagement takes place while α b and cd stand out of interference. By the rotation of the sleeve / a ring around a possible rotation of the nut to prevent now is lifted by means of r k at the same time the file arranged like hewn wedge piece and thereby angeprefst d änfserlich to the conical wheel. This gear ratio switched on is also suitable for faster lifting of (here 19 times) smaller loads, i.e. around 2100 kg, when turning the crank in the opposite direction.

Aus dem Gesagten erhellt, dafs dieser Differentialschrauben - Mechanismus zum Ausüben starker Pressungen sehr geeignet ist.From what has been said it is evident that this differential screw mechanism is used to exercise strong pressures is very suitable.

Patent-Anspruch: Eine Differentialschraubenwinde mit zweifacher Gangart und schnellem Rückgang, wie beschrieben und gezeichnet.Patent claim: A differential screw winch with double speed and fast Decline as described and drawn.

Hierzu I Blatt Zeichnungen.For this purpose I sheet drawings.

Claims (1)

1877.1877. Klasse 35.Class 35. OTTO ZOBEL in SCHMALKALDEN. Differential-Schraubenwinde mit zweifacher Gangart und schnellem Rückgang.OTTO ZOBEL in SCHMALKALDEN. Differential screw jack with dual gait and rapid decline. Patentirt im Deutschen Reiche vom 8. September 1877 a^·Patented in the German Empire on September 8, 1877 a ^ · Die bis jetzt bekannten Differentialschraubenwinden beruhen auf dem Princip, dafs zwei Gewinde von verschiedener Steigung gegeneinander arbeiten. Sie haben sich in der Praxis nicht Eingang verschafft wegen zu grofser Reibungswiderstände in den Schraubengewinden.The differential screw winches known up to now are based on the principle that two Work threads of different pitch against each other. You have to practice not provided because of excessive frictional resistance in the screw threads. In der auf beiliegender Zeichnung angedeuteten Construction ist dieser Uebelstand auf das bei Anwendung einer Schraube denkbare Minimum reducirt. Durch die Kurbel werden zwei paar konische Räder ab und cdin Bewegung gesetzt. Das konische Rad b hat in seiner ausgebohrten Hülse g eine im Innern festgeschraubte Feder (Keil), welche in der Nuth der Schraubenspindel gleitet und dreht dadurch diese letztere in gleichem Sinne, als durch das Räderpaar c d die Mutter für diese Spindel gedreht wird. Bei gleichem Uebersetzungsverhältnifs der beiden Räderpaare a b und c d würden Schraube und Mutter nur in drehende Bewegung versetzt werden. Für den vorliegenden Fall einer Winde für ca. 40000 kg Tragfähigkeit ist dieses UebersetzungsverhältnifsIn the construction indicated in the accompanying drawing, this inconvenience is reduced to the minimum conceivable when using a screw. The crank sets two pairs of conical wheels ab and cd in motion. The conical wheel b has a spring (wedge) screwed inside its drilled sleeve g , which slides in the groove of the screw spindle and thereby rotates the latter in the same way as the nut for this spindle is rotated by the pair of wheels cd. With the same transmission ratio of the two pairs of wheels ab and cd , the screw and nut would only be set in rotating motion. In the present case of a winch for a load capacity of approx. 40,000 kg, this transmission ratio is
DE481DA 1877-09-07 1877-09-07 Differential - screw winch with double speed and rapid decline Expired - Lifetime DE481C (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE481T 1877-09-07

Publications (1)

Publication Number Publication Date
DE481C true DE481C (en)

Family

ID=70970002

Family Applications (1)

Application Number Title Priority Date Filing Date
DE481DA Expired - Lifetime DE481C (en) 1877-09-07 1877-09-07 Differential - screw winch with double speed and rapid decline

Country Status (1)

Country Link
DE (1) DE481C (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE941318C (en) * 1952-04-03 1956-04-05 Francoise Paczecka Geb Novorol Screw jack

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE941318C (en) * 1952-04-03 1956-04-05 Francoise Paczecka Geb Novorol Screw jack

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