EP1234638A2 - Werkzeug zum Ein- und Ausbau von hydrostatischen Lagern - Google Patents

Werkzeug zum Ein- und Ausbau von hydrostatischen Lagern Download PDF

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Publication number
EP1234638A2
EP1234638A2 EP02001384A EP02001384A EP1234638A2 EP 1234638 A2 EP1234638 A2 EP 1234638A2 EP 02001384 A EP02001384 A EP 02001384A EP 02001384 A EP02001384 A EP 02001384A EP 1234638 A2 EP1234638 A2 EP 1234638A2
Authority
EP
European Patent Office
Prior art keywords
bush
housing
tool according
hydrostatic
press plate
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.)
Withdrawn
Application number
EP02001384A
Other languages
English (en)
French (fr)
Other versions
EP1234638A3 (de
Inventor
Lars Klingvall
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.)
Rehobot Hydraulics AB
Original Assignee
Rehobot Hydraulics AB
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 Rehobot Hydraulics AB filed Critical Rehobot Hydraulics AB
Publication of EP1234638A2 publication Critical patent/EP1234638A2/de
Publication of EP1234638A3 publication Critical patent/EP1234638A3/de
Withdrawn legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
    • B25B27/00—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for
    • B25B27/02—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for for connecting objects by press fit or detaching same
    • B25B27/06—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for for connecting objects by press fit or detaching same inserting or withdrawing sleeves or bearing races
    • B25B27/062—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for for connecting objects by press fit or detaching same inserting or withdrawing sleeves or bearing races using screws

Definitions

  • the present invention relates to a tool for removing a cylindrical hydrostatic bush from a cylindrical bush housing and for subsequent mounting of a new bush in the housing.
  • a hydrostatic bush also called Silentbloc®
  • the hydrostatic bush is arranged with a tight fit in a fixed bush housing and has a central opening for receiving a rod-shaped member to be damped.
  • the bush When the bush is worn-out or damaged and has to be replaced, problems are encountered.
  • the bush is pushed or pressed into position in its housing, until a flange of a bush sleeve abuts the end of the bush housing.
  • As the outer diameter of the bush housing may be smaller than that of sleeve flange, it may be difficult to push the bush out of the housing in the return direction as compared to the mounting, as there is no possibility to apply or mount a counterstay.
  • the force required to remove the bush from its housing may vary depending on the tolerances and the building-up of rust and other contaminants, but may be quite considerable.
  • Another possibility could be to use a sharp-edged withdrawing tool to be inserted between the bush housing and the bush sleeve, but in this case there is a risk for damages to the housing and the tool.
  • the tool has a push rod movable towards the bush housing by means of an actuator and a counter-means at the oppositie side of the bush housing for supporting the latter against the force on the bush from the push rod, which may either be provided with a punch mandrel for pushing out the interior parts of the bush or with a press plate for pressing a new bush into the bush housing.
  • a so called hydrostatic bush 1 is most clearly shown in Fig 5 but also in Figs 1 and 4.
  • a hydrostatic bush is also called Silentbloc®. It is for example used for damping purposes in the rear axle design in certain cars. It is cylindrical and is mounted in a cylindrical fixed bush housing 2, as is shown in Figs 1 and 2.
  • the bush 1 is been mounted from the right to the left in Fig 1 into the bush housing 2, until the bush flange 1" engages the right end of the bush housing 2.
  • a new tool to be described has been developed for dismounting or removing a worn-out hydrostatic bush 1 and for subsequent mounting of a new hydrostatic bush in the bush housing.
  • This tool comprises an actuator 3 of a suitable type, for example a single-acting hydraulic cylinder with a spring return.
  • the actuator which does not per se form any part of the invention, is not further desscribed. In the shown case it has a threaded push rod 4, which enables a mechanical adjustment of its stroke. It has a front ring 5, to which distance rods 6 are attached.
  • a counter-ring 7 is slidingly arranged on the distance rods 6 and has an end shoulder 7' for engagement with the left end of the bush housing 2.
  • the inner diameter of the counter-ring 7 is greater than the outer diameter of the bush 1 to as to allow passage of the latter.
  • Removable nuts 8 are arranged at the ends of the distance rods 6.
  • a punch mandrel 9 has a sleeve-shaped end to the right in the drawing for arrangement on the end of the push rod 4. At its opposite or forward end it has a relieved cutting edge 9' for cutting through interior parts of the hydrostatic bush 1. Its cross-sectional area is smaller than that of the hydrostatic bush 1. The forward end of the punch mandrel 9 has a socket 9" for engaging a central portion of the bush 1, as appears in Fig 4.
  • the punch mandrel 9 has side portions removed as shown in Fig 3.
  • a guide pin 10 for engagement with a corresponding notch 1' in the central portion of the hydrostatic bush.
  • the push rod 4 provided with the punch mandrel 9 is advanced by the actuator 3 in the direction of the arrow in Fig 4.
  • the mandrel 9 has a smaller diameter than the bush 1, which means that the internal parts of the bush are partly broken and pushed out to the left in the drawing. The remaining sleeve 1" may thereafter easily be manually removed.
  • the bush housing 2 is now ready for the mounting of a new hydrostatic bush 1, as is depicted in Fig 5.
  • a press plate 12 with a sleeve shaped portion for arrangement on the push rod 4.
  • the press plate 12 has a central portion 12' for engagement with the central portion of the bush 1 and a ring 12" for engagement with the bush sleeve 1", as is shown in Fig 5. It also has a center pin 13 for guiding insertion in a center hole in the hydrostatic bush 1.
  • the press plate 12 has a diameter corresponding to the overall diameter of the bush 1. By pushing against the central portion of the bush 1 and the flange of the bush sleeve 1" the press plate 12 can press the new hydrostatic bush 1 into the bush housing 2 without any damage to the bush.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Automatic Assembly (AREA)
  • Drilling And Boring (AREA)
EP02001384A 2001-02-27 2002-01-19 Werkzeug zum Ein- und Ausbau von hydrostatischen Lagern Withdrawn EP1234638A3 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
SE0100654 2001-02-27
SE0100654A SE0100654L (sv) 2001-02-27 2001-02-27 Verktyg för montering och demontering av en bussning innefattande ett presstansdorn

Publications (2)

Publication Number Publication Date
EP1234638A2 true EP1234638A2 (de) 2002-08-28
EP1234638A3 EP1234638A3 (de) 2004-01-21

Family

ID=20283135

Family Applications (1)

Application Number Title Priority Date Filing Date
EP02001384A Withdrawn EP1234638A3 (de) 2001-02-27 2002-01-19 Werkzeug zum Ein- und Ausbau von hydrostatischen Lagern

Country Status (2)

Country Link
EP (1) EP1234638A3 (de)
SE (1) SE0100654L (de)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2738714C1 (ru) * 2020-03-26 2020-12-15 Станислав Юрьевич Казарин Гидравлический пресс для выпрессовки или запрессовки втулок
CN113580069A (zh) * 2021-08-17 2021-11-02 中船动力研究院有限公司 一种隔套安装与拆卸工具及其安装与拆卸方法
CN114918645A (zh) * 2022-02-21 2022-08-19 邵亮 一种大型接轴套筒定位圆衬套安装装置
CN116394192A (zh) * 2023-03-29 2023-07-07 先导薄膜材料（广东）有限公司 一种模具拆卸工装

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2735405C1 (ru) * 2020-03-26 2020-10-30 Станислав Юрьевич Казарин Пресс гидравлический для выпрессовки или запрессовки втулок

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3696496A (en) * 1970-12-21 1972-10-10 Joe B Corder Extractor and pusher
DE9111054U1 (de) * 1991-09-10 1991-11-14 Klann, Horst, 7730 Villingen-Schwenningen Vorrichtung zum Ein- und Auspressen von Silentlagern an Kraftfahrzeugachsen
DE9111602U1 (de) * 1991-09-18 1991-11-21 Klann, Horst, 7730 Villingen-Schwenningen Vorrichtung zum Ein- und Auspressen von Silentlagern an Kraftfahrzeugachsen
DE29805584U1 (de) * 1998-03-27 1998-05-28 Klann Tools Ltd., Oxfordshire Montagevorrichtung zum Auswechseln von Silentlagern

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2738714C1 (ru) * 2020-03-26 2020-12-15 Станислав Юрьевич Казарин Гидравлический пресс для выпрессовки или запрессовки втулок
CN113580069A (zh) * 2021-08-17 2021-11-02 中船动力研究院有限公司 一种隔套安装与拆卸工具及其安装与拆卸方法
CN114918645A (zh) * 2022-02-21 2022-08-19 邵亮 一种大型接轴套筒定位圆衬套安装装置
CN116394192A (zh) * 2023-03-29 2023-07-07 先导薄膜材料（广东）有限公司 一种模具拆卸工装

Also Published As

Publication number Publication date
SE517115C2 (sv) 2002-04-16
EP1234638A3 (de) 2004-01-21
SE0100654L (sv) 2002-04-16
SE0100654D0 (sv) 2001-02-27

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