US938546A - Crusher-head. - Google Patents

Crusher-head. Download PDF

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Publication number
US938546A
US938546A US42960608A US1908429606A US938546A US 938546 A US938546 A US 938546A US 42960608 A US42960608 A US 42960608A US 1908429606 A US1908429606 A US 1908429606A US 938546 A US938546 A US 938546A
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United States
Prior art keywords
head
shaft
nut
crusher
thread
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
US42960608A
Inventor
Richard Bernhard
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.)
POWER AND MINING MACHINERY Co
Original Assignee
POWER AND MINING MACHINERY Co
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 date
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Priority to US42960608A priority Critical patent/US938546A/en
Application granted granted Critical
Publication of US938546A publication Critical patent/US938546A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47B—TABLES; DESKS; OFFICE FURNITURE; CABINETS; DRAWERS; GENERAL DETAILS OF FURNITURE
    • A47B57/00—Cabinets, racks or shelf units, characterised by features for adjusting shelves or partitions
    • A47B57/30—Cabinets, racks or shelf units, characterised by features for adjusting shelves or partitions with means for adjusting the height of detachable shelf supports
    • A47B57/48—Cabinets, racks or shelf units, characterised by features for adjusting shelves or partitions with means for adjusting the height of detachable shelf supports consisting of tongues, pins or similar projecting means coacting with openings
    • A47B57/50—Cabinets, racks or shelf units, characterised by features for adjusting shelves or partitions with means for adjusting the height of detachable shelf supports consisting of tongues, pins or similar projecting means coacting with openings characterised by shape or orientation of opening, e.g. keyhole-shaped
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
    • F16B21/00—Means for preventing relative axial movement of a pin, spigot, shaft or the like and a member surrounding it; Stud-and-socket releasable fastenings
    • F16B21/09—Releasable fastening devices with a stud engaging a keyhole slot
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
    • F16B2200/00—Constructional details of connections not covered for in other groups of this subclass
    • F16B2200/20—Connections with hook-like parts gripping behind a blind side of an element to be connected
    • F16B2200/205—Connections with hook-like parts gripping behind a blind side of an element to be connected the hook being a separate retainer
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
    • F16B2200/00—Constructional details of connections not covered for in other groups of this subclass
    • F16B2200/40—Clamping arrangements where clamping parts are received in recesses of elements to be connected
    • F16B2200/403—Threaded clamping parts
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
    • F16B2200/00—Constructional details of connections not covered for in other groups of this subclass
    • F16B2200/69—Redundant disconnection blocking means

Definitions

  • This invention relates particularly to that class of crushers for stone, ore and the like, known as gyratory Crushers, the especial ob ⁇ A ject of the invention being to provide a fastening for the crushing head which shall be self tightening so as to keep the head tight upon the shaft.
  • gyratory Crushers the class of Crushers, it
  • the present invention provides means by which the head is forced down on the taper automatically in case the head becomes loose and rotates on the shaft, thus keeping the head tight upon the shaft, the zinc being expanded into the bore on the head, if zinced on. I secure this result by providing the shaft with a screw thread and the head with ⁇ a nut that rotates with the'head and coacts with the shaft thread to force the head onto the taper by the rotation of the nut.
  • a single thread on the shaft may be used, as, for instance, when it is known during manufacture in which direction the machine will run and the head tend to rotate, andV the invention broadly considered, includes construct-ions in which a single thread is used.
  • a specific feature of the present invention consists in providing the shaft with bot-h right and left threads, so that a nut with either left or right hand thread may be used on the head to co-act with one of the shaft threads to tighten the head, according to the direction 1n which the Crusher is to be operated.
  • - Figure 1 is a sectional perspective of a portion of a Crusher shaft above the tapered portion, the shaft A isv formed with two screw threads, one being a right hand thread and the other a left hand thread, the upper thread 10, in the construction shown, being the right hand thread, and the lowerr thread 11 the left hand thread.
  • a nut Secured to the head in any suitable manner so as to rotate therewith is a nut, cof acting with one of the threads 10, 11, according 'to the direction in which the machine is operated and the head tends to turn.
  • nut D is formed to co-act with the right hand thread 10
  • nut E is formed to co-act with the left hand thread 11
  • the heads B in the two figures tending to rot-ate in the direction shown by the arrows on the shafts.
  • the nuts D, E are faced on the bottom to fit the top of the head B, and are shown as pinned t'o the head, the top of the head and the bottom of the nuts being provided with semi-circular radial grooves .2 receiving piu 3. These grooves are suflicient in number and so arranged that, when the nut is tight.- ened on the shaft in setting up the machine, one pair of these grooves will come in line to vreceive the pin.
  • the operation of the device is as follows
  • the gyratory movement of the shaft tends to rotate the head on the shaft, which movement is prevented as long as the head is tight. If the head loosens and tends to rotate, it will cause the nut D in Fig. 1 or the nut E in Fig. 2 to rotate on the shaft in the direction in which the head moves, and thus screw the nut down on the shaft and .force the head down on the taper and tighten the head on the shaft.
  • the invention is not limited to the use of the zinc or similar soft metal between the head and the shaft, although this is also to Crushers of other classes in which the head is liable to loosen and rotate orr the shaft.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Crushing And Grinding (AREA)

Description

R'. BERNHARD.
GRUSHEB. HEAD.
` APPLICATION FILED APB..28,1908 938,546.
Patented NOV.2,1909.
llnfezllfor.
WIL
wtnesses.
. i Alfol'neys R. BERNHARD. l
GRUSHER HEAD.
APPLIOATION FILED APR. 28.1908.
938,546. Patented Nov. 2, 9.
V 2 SHEETS-B 2.
15551168.9618. Inventor.
Atozueyg UNITED STATES PATENT OFFICE..
RICHARD BERNHARD, 0E MILWAUKEE, WISCONSIN, AssIGNoR To Pow-ER AND MIN- ING MACHINERY COMPANY, oF JERSEY CITY, NEW JERSEY, A CORPORATION or NEW JERSEY,
CRUSHER-HEAD.
Specication of Letters Patent.
'l Patented N0v.2,19o9.
Application led April 28, 1908. Serial No. 429,606.
To all whom it may concern:
Be it known that I, RICHARD BERNHARD, a citizen of the United States, residing at Milwaukee, county of Milwaukee, land State of Wisconsin, have invented certain new and useful Improvements in Crusher-Heads, fully described and represented in the fol# lowing specification and the accompanying drawings, forming a part of the same.
This invention'relates particularly to that class of crushers for stone, ore and the like, known as gyratory Crushers, the especial ob`A ject of the invention being to provide a fastening for the crushing head which shall be self tightening so as to keep the head tight upon the shaft. In this class of Crushers, it
is diicult to bore the heads so as to make a perfect fit. It has been customary, therefore, to zinc the head on the shaft so as to fill up any spaces, but this leads to diiiiculty on account of the zinc shrinking in cooling, thus loosening the head. In the'operation of these gyratory Crushers, also, there is liability of loosening the head on the shaft,
whether the head is zinced on the shaft or not.
The present invention provides means by which the head is forced down on the taper automatically in case the head becomes loose and rotates on the shaft, thus keeping the head tight upon the shaft, the zinc being expanded into the bore on the head, if zinced on. I secure this result by providing the shaft with a screw thread and the head with` a nut that rotates with the'head and coacts with the shaft thread to force the head onto the taper by the rotation of the nut. A single thread on the shaft may be used, as, for instance, when it is known during manufacture in which direction the machine will run and the head tend to rotate, andV the invention broadly considered, includes construct-ions in which a single thread is used. but a specific feature of the present invention consists in providing the shaft with bot-h right and left threads, so that a nut with either left or right hand thread may be used on the head to co-act with one of the shaft threads to tighten the head, according to the direction 1n which the Crusher is to be operated.
A construction embodying the invent-ion in a simple form will now be describedin connection with the accompantying drawings, forming part of this speci cation, and
the features embodying the invention then specifically pointed out in the claims.
In the drawings :-Figure 1 is a sectional perspective of a portion of a Crusher shaft above the tapered portion, the shaft A isv formed with two screw threads, one being a right hand thread and the other a left hand thread, the upper thread 10, in the construction shown, being the right hand thread, and the lowerr thread 11 the left hand thread.
Secured to the head in any suitable manner so as to rotate therewith is a nut, cof acting with one of the threads 10, 11, according 'to the direction in which the machine is operated and the head tends to turn.
In Fig. 1 the nut D is formed to co-act with the right hand thread 10, and in Fig. 2, the nut E is formed to co-act with the left hand thread 11, the heads B in the two figures tending to rot-ate in the direction shown by the arrows on the shafts.
The nuts D, E are faced on the bottom to fit the top of the head B, and are shown as pinned t'o the head, the top of the head and the bottom of the nuts being provided with semi-circular radial grooves .2 receiving piu 3. These grooves are suflicient in number and so arranged that, when the nut is tight.- ened on the shaft in setting up the machine, one pair of these grooves will come in line to vreceive the pin.
.The operation of the device is as follows The gyratory movement of the shaft tends to rotate the head on the shaft, which movement is prevented as long as the head is tight. If the head loosens and tends to rotate, it will cause the nut D in Fig. 1 or the nut E in Fig. 2 to rotate on the shaft in the direction in which the head moves, and thus screw the nut down on the shaft and .force the head down on the taper and tighten the head on the shaft.
While the invention is shown as applied to a solid head, it will be understood that itV is applicable also to heads made with an inner center or core and an outer shell or mantle, as is common in this class of crush-l ers, and the solid head, or the center or mantle, may be formed in any manner desired. The taper or wedge surface onto which the head is forced to tighten it may be provided in any suitable manner.
Y The invention is not limited to the use of the zinc or similar soft metal between the head and the shaft, although this is also to Crushers of other classes in which the head is liable to loosen and rotate orr the shaft.
What I claim is 1. In a gyratory Crusher or the like, the
- combination 'with a crushing shaft having a taper and a screw thread, of a head, and a nut secured to the head tol rotate therewith on the shaft and co-aeting with the shaft `thread to force the head onto the taper and tighten the head.
2.4In a gyratory Crusher or the like, the
combination with'a crushing shaft having a taper andy right and left screw threads, and a head, of a nut lsecured to the head to rotate therewith and co-aeting with one of the shaft threads to force the head onto the taper and tighten the head.
3.' In a gyratory Crusher or theilike, the
RICHARD BERNHARD. lWitness-es:
L. F. SNYDER,
F. G. BECKER.
US42960608A 1908-04-28 1908-04-28 Crusher-head. Expired - Lifetime US938546A (en)

Priority Applications (1)

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Applications Claiming Priority (1)

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US42960608A US938546A (en) 1908-04-28 1908-04-28 Crusher-head.

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5152606A (en) * 1990-07-27 1992-10-06 General Signal Corporation Mixer impeller shaft attachment apparatus

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5152606A (en) * 1990-07-27 1992-10-06 General Signal Corporation Mixer impeller shaft attachment apparatus

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