Change search
CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf
Högupplöst varvtalsgivare till hydraulisk radialkolvmotor
Umeå University, Faculty of Science and Technology, Department of Applied Physics and Electronics.
2019 (Swedish)Independent thesis Basic level (professional degree), 10 credits / 15 HE creditsStudent thesisAlternative title
High-resolution speed sensor for hydraulic radial piston motor (English)
Abstract [sv]

Bosch Rexroth i Mellansel, utanför Örnsköldsvik, jobbar med att utveckla, förbättra och tillverka Hägglunds hydrauliska drivsystem. Drivsystemet består av en drivenhet ochenhydraulmotor.Motorn är en radialkolvmotor som omvandlar hydrauliskt tryck till vridmoment. Dessa motorer finns i några olika modeller och företaget vill nu utöka alternativen av tillbehör till den minsta motormodellen, CAb. Detta för att kunnata sig in på nya marknader genom att erbjuda lösningar som fungerar inom flera områden och miljöer.

Det tillbehör detta examensarbete utvärderadevar en högupplöst varvtalsgivare. En högupplöst varvtalsgivare har till uppgiftattta in information om hur snabbt motorn roterar för att sedan skicka det vidare till styrsystemet som i sin tur styr hur myckethydraulolja som pumpen genererar,så kallad varvtalsåterkoppling.Varvtalsgivaren behövs alltså för att kunna styra hastigheten på motorn mer exakt.

I rapporten framgår de specifika krav som ställs på varvtalsgivaren till CAb, olika teknikerför att mäta varvtal presenteras samtdekonstruktionsförslagsomladesfram.

Examensarbetet resulterade i fyra olika förslag på högupplösta varvtalsgivare till CAb-motorn, alternativen jämfördes med kravspecifikationen och graderades utifrån det. Detta utvärderades och resulterade i atten inductive angle encoder (IncOder)ladesfram som lämplig varvtalsgivare till CAb.

Abstract [en]

Bosch Rexroth in Mellansel, outside of Örnsköldsvik, is workingwithdeveloping, improving and manufacturing Hägglunds hydraulic drive systems. The drive system consists of a drive unit and a hydraulic motor, the motor is a radial piston motor that converts hydraulic pressure to torque. These motors are available in several different models and the company now wants to expand the options of accessories to the smallest motor-model, CAb. This is to be able to enter new markets by offering solutions that work in several areas and environments.

The accessory this thesis focused on was a high-resolution speed sensor. A high-resolution speed sensor picks up information on how quickly the motor rotates and then sends it to the control system (speed-feedback), which in turn controls how much hydraulic oil the pump generates. So the speed sensor is needed to be able to control the speed of the motor more accurately.

The report shows the specific requirements that are set on the speed sensor for CAb, various techniques for measuring speed are presented as well as the design proposals.

The thesis resulted in four different proposals for high-resolution speed sensors for the CAb motor, the alternatives were compared with the requirement specification and graded based on that. This was evaluated and resulted in an inductive angle encoder (IncOder) being presented as a suitable speed sensor for CAb.

Place, publisher, year, edition, pages
2019. , p. 28
National Category
Mechanical Engineering
Identifiers
URN: urn:nbn:se:umu:diva-161322OAI: oai:DiVA.org:umu-161322DiVA, id: diva2:1333927
External cooperation
Bosch Rexroth AB
Subject / course
Maskinteknik
Educational program
Bachelor of Science Engineering in Mechanical Engineering
Supervisors
Examiners
Available from: 2019-07-02 Created: 2019-07-02 Last updated: 2019-07-02Bibliographically approved

Open Access in DiVA

fulltext(1521 kB)25 downloads
File information
File name FULLTEXT01.pdfFile size 1521 kBChecksum SHA-512
c2a5c0fa3c3842ec47b12628ee92bb7097b97cadddd66436edf107a97938a5e00992e7f4b0e875e6e6f72d41bf1b9c9e5f4f63fcb0f08afa3292cc0b7fce1b8a
Type fulltextMimetype application/pdf

By organisation
Department of Applied Physics and Electronics
Mechanical Engineering

Search outside of DiVA

GoogleGoogle Scholar
Total: 25 downloads
The number of downloads is the sum of all downloads of full texts. It may include eg previous versions that are now no longer available

urn-nbn

Altmetric score

urn-nbn
Total: 107 hits
CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf