Classifications

• • H—ELECTRICITY
  • H01—ELECTRIC ELEMENTS
  • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
  • H01H3/00—Mechanisms for operating contacts
  • H01H3/60—Mechanical arrangements for preventing or damping vibration or shock
  • H01H3/605—Mechanical arrangements for preventing or damping vibration or shock making use of a fluid damper
• • 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
  • F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
  • F16F9/00—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium
  • F16F9/32—Details
  • F16F9/54—Arrangements for attachment
• • 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
  • F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
  • F16F2230/00—Purpose; Design features
  • F16F2230/28—Inclination of a suspension element

Definitions

• the invention relates to a switch drive with a rotatably mounted, counter-gravity-oriented, hydraulic damping element for damping a switching movement.
• Such a switch drive is for example from the
• a switch drive is shown schematically on page B05-A.23.
• the switch drive shown is a spring-loaded drive.
• the necessary drive energy is provided by releasing previously tensioned spring assemblies.
• the drive energy is transmitted via a gear, which has gears, shafts and levers.
• damping elements In order to dampen the suddenly occurring high forces during a shift, damping elements are provided which absorb excess energy when an end position of the transmission is reached.
• the damping element for the switch-on movement is designed as a hydraulic damping element and has a cylinder in which a piston moves within a hydraulic fluid.
• Such hydraulic damping elements have a gas volume above the hydraulic fluid. It must be ensured that the piston is always completely flushed by the hydraulic fluid in order to always ensure a constant damping characteristic. Switches with different designs require the respective switch drives to be attached to different positions in different mounting positions.
• the present invention is based on the object of designing a switch drive of the type mentioned at the outset in such a way that the hydraulic damping element is able to function consistently in different mounting positions.
• the object is achieved in that the damping element is arranged in a position deflected from the vertical by 45 ° and can be pivoted slightly about this angular length.
• Figure 1 shows the schematic structure of a switch drive in a first mounting position
• Figure 2 shows the schematic structure of the switch drive in a second mounting position.
• FIG. 1 shows a housing 1 of a spring-loaded drive 2.
• the spring-loaded drive 2 has a spring 3 for providing the drive energy.
• This spring 3 can be tensioned by an electric motor, not shown.
• the spring 3 acts on a gear 4, which is indicated by dashed lines in the figure.
• This gear 4 transmits the energy provided by the spring 3 to a drive rod 5, which drives the switching poles 6 of an electrical switching device.
• a damping element 7 is provided to dampen the sudden switching movements.
• the damping element 7 is pivoted out of the vertical by an angle of 45 ° and has a cylinder 8 filled with hydraulic fluid 9, in which a piston 10 moves.
• the damping element 7 is rotatably arranged on the housing 1.
• the piston 10 is designed such that it moves at high relative speeds of the piston 10 and cylinder 8 only with a high resistance within the hydraulic fluid 9.
• the piston has 10 overflow channels.
• the piston 10 is fastened to a piston rod 11 and is guided through it.
• the piston rod 11 has an elongated hole 12, over which is operatively connected to a rotatable lever 13.
• the rotatable lever 13 is arranged on a shaft 14 of the transmission 4. The lever 13 transmits the rotary movement of the shaft 14 moved during a switch-on process
• the rotational movement of the shaft 14 and the movement of the drive rod 5 are coordinated so that shortly before reaching the end position, the damping effect of the damping element 7 begins and the switch-on movement is damped.
• damping may be required for the switch-on movement and the switch-off movement.
• a separate damping element must be provided for each of the movements, both being deflected from the vertical in the same way, in order to ensure the universal use of the switch drive both in a horizontal and in a vertical position.

Landscapes

• Engineering & Computer Science (AREA)
• General Engineering & Computer Science (AREA)
• Mechanical Engineering (AREA)
• Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)
• Fluid-Damping Devices (AREA)
• Vehicle Body Suspensions (AREA)

Applications Claiming Priority (3)

Publications (1)

Family

ID=7666345

Family Applications (1)

Country Status (5)

Families Citing this family (9)

Family Cites Families (9)

• 2000
  • 2000-11-30 DE DE10061164A patent/DE10061164C1/de not_active Expired - Fee Related
• 2001
  • 2001-10-04 CN CN01803908.1A patent/CN1395660A/zh active Pending
  • 2001-10-04 EP EP01998750A patent/EP1248918A1/de not_active Withdrawn
  • 2001-10-04 US US10/182,394 patent/US20050016962A1/en not_active Abandoned
  • 2001-10-04 WO PCT/DE2001/003877 patent/WO2002044585A1/de not_active Application Discontinuation

Non-Patent Citations (1)

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