DK200000775A - Hydraulisk motor med bremseaggregat - Google Patents

Hydraulisk motor med bremseaggregat Download PDF

Info

Publication number
DK200000775A
DK200000775A DK200000775A DKPA200000775A DK200000775A DK 200000775 A DK200000775 A DK 200000775A DK 200000775 A DK200000775 A DK 200000775A DK PA200000775 A DKPA200000775 A DK PA200000775A DK 200000775 A DK200000775 A DK 200000775A
Authority
DK
Denmark
Prior art keywords
housing
piston
output shaft
annular
brake
Prior art date
Application number
DK200000775A
Other languages
English (en)
Inventor
Brad P Shupe
Original Assignee
Parker Hannifin Corp
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
Application filed by Parker Hannifin Corp filed Critical Parker Hannifin Corp
Publication of DK200000775A publication Critical patent/DK200000775A/da

Links

Classifications

    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B5/00—Visible signalling systems, e.g. personal calling systems, remote indication of seats occupied
    • G08B5/22—Visible signalling systems, e.g. personal calling systems, remote indication of seats occupied using electric transmission; using electromagnetic transmission
    • G08B5/36—Visible signalling systems, e.g. personal calling systems, remote indication of seats occupied using electric transmission; using electromagnetic transmission using visible light sources
    • G08B5/38—Visible signalling systems, e.g. personal calling systems, remote indication of seats occupied using electric transmission; using electromagnetic transmission using visible light sources using flashing light
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C15/00—Component parts, details or accessories of machines, pumps or pumping installations, not provided for in groups F04C2/00 - F04C14/00
    • F04C15/0057—Driving elements, brakes, couplings, transmission specially adapted for machines or pumps
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C15/00—Component parts, details or accessories of machines, pumps or pumping installations, not provided for in groups F04C2/00 - F04C14/00
    • F04C15/0057—Driving elements, brakes, couplings, transmission specially adapted for machines or pumps
    • F04C15/0084—Brakes, braking assemblies
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C2/00—Rotary-piston machines or pumps
    • F04C2/08—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing
    • F04C2/10—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of internal-axis type with the outer member having more teeth or tooth-equivalents, e.g. rollers, than the inner member
    • F04C2/103—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of internal-axis type with the outer member having more teeth or tooth-equivalents, e.g. rollers, than the inner member one member having simultaneously a rotational movement about its own axis and an orbital movement
    • F04C2/104—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of internal-axis type with the outer member having more teeth or tooth-equivalents, e.g. rollers, than the inner member one member having simultaneously a rotational movement about its own axis and an orbital movement having an articulated driving shaft
    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B7/00—Signalling systems according to more than one of groups G08B3/00 - G08B6/00; Personal calling systems according to more than one of groups G08B3/00 - G08B6/00
    • G08B7/06—Signalling systems according to more than one of groups G08B3/00 - G08B6/00; Personal calling systems according to more than one of groups G08B3/00 - G08B6/00 using electric transmission, e.g. involving audible and visible signalling through the use of sound and light sources

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Hydraulic Motors (AREA)
  • Braking Arrangements (AREA)
  • Arrangement Of Elements, Cooling, Sealing, Or The Like Of Lighting Devices (AREA)

Description

What is claimed is: 1. A hydraulic device (10) characterized as including: an axially-extending housing (11); a hydraulic motor (12) at one end of the housing (11) having a stator (44) and a rotor (42) with cooperating teeth defining fluid pockets (46), a wobble shaft (70) connected to said rotor, said rotor (42) rotating and orbiting relative to said stator when hydraulic fluid is directed into and out of the fluid pockets (46); an axially-extending output shaft (14) extending outward from another end of the housing, the output shaft (14) having an inner end portion (89) located in the housing and connected to said wobble shaft (70) to rotate said output shaft (14) upon rotation and orbital movement of said rotor (42); a brake assembly (16) disposed in the housing including, said brake assembly including i) a plurality of annular brake disks (108) interleaved in face-to-face relation with one another, at least some of said disks (122) being fixed to the output shaft (14) for rotation therewith, and other of said brake disks (126) being fixed to the housing (11); ii) an annular piston (24) surrounding the output shaft (14) and axially moveable with respect thereto; and iii) at least one spring device (130) normally biased against one annular surface (133) of the piston to urge said piston (24) toward and against the brake disks (108) to cause said brake disks (108) to brake the output shaft (14); an annular fluid pressure cavity (136) defined by another surface (139) of the piston (24) axially-opposite from the one surface (133) to move the piston (24) away from the brake disks (108) when fluid above the force of the spring device (130) enters the cavity, said piston (124) including a radially-projecting stop surface (133) across a major portion of the one surface (133) of the piston and the housing (11) including a corresponding radially-projecting stop surface (145), the stop surface (133) of the piston engaging the stop surface (145) of the housing prior to maximum compression of the spring device (130), wherein the piston (24) is prevented from cocking when the stop surface (133) of the piston contacts the stop surface (145) of the housing. 2. The hydraulic device (10) as in claim 1, wherein the stop surface (133) of the piston contacting the stop surface (145) of the housing is at least along the inner diameter of the annular one surface (133) of the piston. 3. The hydraulic device (10) as in any of the previous claims, wherein the stop surface (133) of the piston is at least along the outer diameter of the one annular surface (133) of the piston. 4. The hydraulic device (10) as in any of the previous claims, wherein a plurality of springs (13) are provided normally under compression against the one annular surface (133) of the piston to urge said piston toward and against the brake disks (108), the springs (130) located in a series of cylindrical cavities (134) formed in the housing, with the housing stop surface (145) radially inwardly and outwardly bounding the cavities (134). 5. The hydraulic device (10) as in claim 4, wherein the cylindrical cavities (134) for the compression springs (130) open toward the other end of the housing, away from the motor end of the housing. 6. The hydraulic device (10) as in any of the previous claims, wherein the spring device (130) is provided toward the motor end of the housing, the brake disks (108) are provided toward the other end of the housing, and the piston (24) is disposed axially between the spring device (13) and the brake disks (108). 7. The hydraulic device (10) as in claim 4, wherein said housing (11) includes a) a unitary, one-piece housing cover (96) at the other end of the housing (11) having a central opening for the output shaft (14) , said housing cover (96) having a cup-shape and receiving and at least partially enclosing the brake disks (108) and the annular piston (24), and b) a unitary, one-piece housing body (54) toward the one end of the housing (11) including the plurality of cylindrical cavities (134) to receive the compression springs (130), the cup-shaped housing cover (96) and housing body (54) sealingly enclosing the brake disks (108), annular piston (24) and compression springs (130) therebetween. 8. A hydraulic device (10), characterized as including: an axially-extending housing (11); a hydraulic motor (12) at one end of the housing (11) having a stator (44) and a rotor (42) with cooperating teeth defining fluid pockets (46), a wobble shaft (70) connected to said rotor, said rotor rotating and orbiting relative to said stator when hydraulic fluid is directed into and out of the fluid pockets (46); an axially-extending output shaft (14) extending outward from another end of the housing, the output shaft (14) having an inner end portion (89) located in the housing and connected to said wobble shaft (70) to rotate said output shaft (14) upon rotation and orbital movement of said rotor (42); a brake assembly (16) disposed in the housing, said brake assembly including i) a plurality of annular brake disks (108) interleaved in face-to-face relation with one another, at least some of said disks (122) being fixed to the output shaft (14) for rotation therewith, and other of said brake disks (126) being fixed to the housing (11); ii) an annular piston (24) surrounding the output shaft (14) and axially moveable with respect thereto; and iii) at least one spring device (13) normally biased against one annular surface (133) of the piston (24) to urge said piston toward and against the brake disks (108) to cause said brake disks to brake the output shaft (14); an annular fluid pressure cavity (136) defined by another surface (139) of the piston axially-opposite from the one surface (133) to move the piston (24) away from the brake disks (108) when fluid above the force of the spring device (130) enters the cavity, the spring device (130) provided toward the one end of the housing, the brake disks (108) provided toward the other end of the housing, and the piston (24) disposed axially between the spring device and the brake disks. 9. The hydraulic device (10) as in claim 8, wherein a plurality of springs (130) are provided normally under compression against the one annular surface (133) of the piston to urge said piston toward and against the brake disks (108), the springs (130) being located in a series of cylindrical cavities (134) formed in the housing, with the housing stop surface (145) radially inwardly and outwardly bounding the cavities. 10. The hydraulic device (10) as in claims 8 or 9, wherein the cylindrical cavities (134) for the compression springs (130) open toward the other end of the housing, away from the motor end of the housing. 11. A hydraulic device (10), characterized as including: an axially-extending housing (11); a hydraulic motor (12) at one end of the housing (11), and a drive linkage (14, 70) to operate the motor, the drive linkage including an axially-extending output shaft (14) extending outward from another end of the housing, the output shaft rotating upon operation of the motor (12); a brake assembly (16) disposed in said housing, said brake assembly including i) a plurality of annular brake disks (108) interleaved in face-to-face relation with one another, at least some of said disks (122) being fixed to the output shaft (14) for rotation therewith, and other of said brake disks (126) being fixed to the housing (11); ii) an annular piston (24) surrounding the output shaft (14) and axially moveable with respect thereto; and iii) a series of compression springs (130) normally biased against one annular surface (133) of the piston (24) to urge said piston toward and against the brake disks (108) to cause said brake disks to brake the output shaft (14); an annular fluid pressure cavity (136) defined by another surface (139) of the piston (240 axially-opposite from the one surface (133) to move the piston (24) away from the brake disks (108) when fluid above the force of the springs (130) enters the cavity, an annular seal (150) surrounding the output shaft and blocking flow between the brake assembly (16) and the hydraulic motor (12); and a thrust bearing (98) disposed adjacent the inner end of the output shaft in fluid communication with the hydraulic motor, said thrust bearing (98) disposed between radially-extending and opposing bearing surfaces (98a, 98b) formed in the housing (11) and in the output shaft (14), said thrust bearing (98) at least partially axially supporting the inner end portion of said output shaft (14) for rotation relative to the housing (11).
DK200000775A 1999-05-20 2000-05-10 Hydraulisk motor med bremseaggregat DK200000775A (da)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US13498699P 1999-05-20 1999-05-20

Publications (1)

Publication Number Publication Date
DK200000775A true DK200000775A (da) 2000-11-21

Family

ID=22465966

Family Applications (1)

Application Number Title Priority Date Filing Date
DK200000775A DK200000775A (da) 1999-05-20 2000-05-10 Hydraulisk motor med bremseaggregat

Country Status (3)

Country Link
US (2) US6336729B1 (da)
DE (1) DE10022758A1 (da)
DK (1) DK200000775A (da)

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Publication number Publication date
US6336729B1 (en) 2002-01-08
DE10022758A1 (de) 2000-11-23
US6345968B1 (en) 2002-02-12

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