Classifications

• • 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
  • F16H—GEARING
  • F16H7/00—Gearings for conveying rotary motion by endless flexible members
  • F16H7/08—Means for varying tension of belts, ropes or chains 
  • F16H7/10—Means for varying tension of belts, ropes or chains  by adjusting the axis of a pulley
  • F16H7/12—Means for varying tension of belts, ropes or chains  by adjusting the axis of a pulley of an idle pulley
  • F16H7/1254—Means for varying tension of belts, ropes or chains  by adjusting the axis of a pulley of an idle pulley without vibration damping means
  • F16H7/1281—Means for varying tension of belts, ropes or chains  by adjusting the axis of a pulley of an idle pulley without vibration damping means where the axis of the pulley moves along a substantially circular path
• • 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
  • F16H—GEARING
  • F16H7/00—Gearings for conveying rotary motion by endless flexible members
  • F16H7/08—Means for varying tension of belts, ropes or chains 
  • F16H2007/0889—Path of movement of the finally actuated member
  • F16H2007/0893—Circular path

Definitions

• the present invention adjusts the tension of the fan belt to prevent the fan and the crank pulley from slipping or so-called "squealing". Regarding the tension automatic adjustment device. Background technology
• FIG. An apparatus (auto-tensioner 1) for automatically adjusting the tension of a fan of the prior art will be described with reference to FIGS. 4 and 5.
• FIG. In the figure, reference numeral 101 denotes a crank pulley, which is fixed to the end of the crankshaft of an engine (not shown).
• Numeral 102 denotes a fan pulley, not shown, which is attached to a shaft fixed to one of the brackets.
• the fan 103 is attached to the end face of.
• Reference numeral 104 denotes a tension pulley, not shown, which is attached to a shaft section 106 fixed to one bracket (not shown).
• the reno that fits and oscillates is attached to the tip of the '105.
• a coil spring 107 is wound around the shaft portion 106 of the reno 105, and the tension puller 104 is formed by the reaction force.
• the belt 108 is pressed to apply tension to the belt 108.
• Belt 108 is driven by crank pulley 101 and belt 1108a receives tension due to the resistance of fan 103. And the belt 108 b relaxes.
• the tension pulley 104 is in the F direction. It moves in the direction and applies tension by pressing the belt 108b, so that it does not loosen. Even when the engine is suddenly accelerated, the acceleration time is too long, so the tension pulley 104 applies tension following the belt 108b.
• the purpose of the present invention is to eliminate such inconveniences, and even when the engine suddenly decreases, the fan valve can be used.
• the tension is adjusted to prevent the fan and crank pulley from slipping and so-called "squealing".
• the purpose of the present invention is to provide an automatic tension adjusting device. Disclosure of the invention
• the swinging self-supporting pivoting of the tension pulley at one end is achieved.
• the current coil, the lever with the screw automatically adjusts the amount of movement that swings in the opposite direction to the direction in which the tension pull is pressed against the fabric.
• the adjusting means is a screw with a nose with a bin, * 1, a yoke with a hole to be loosely fitted with this pin, and the other end of this yoke. It consists of an adjustment bolt, a lock nut that fixes this bolt to the yoke, and a fixed bracket that passes through this adjustment bolt. ing .
• FIG. 1 is a conceptual diagram showing the arrangement of each pulley belt and yoke etc. according to the present invention
• Fig. 2 is a tension automatic adjustment of the fanbelt according to the present invention
• FIG. 3 is a partial cross-sectional view when the device stops and suddenly decelerates.
• FIG. 3 is a diagram illustrating the fan tension automatic adjustment device according to the present invention during steady-state operation and rapid acceleration.
• Fig. 4 is an explanatory view of the pulley belt and the like during normal operation and rapid acceleration according to the conventional technology
• Fig. 5 is a diagram during rapid acceleration according to the conventional technology. It is an explanatory diagram of each pool and belt.
• BEST MODE FOR CARRYING OUT THE INVENTION An embodiment according to the present invention will be described in detail with reference to FIGS. 1 to 3.
• FIG. 1 is a conceptual diagram showing the arrangement of each pulley belt and yoke etc. according to the present invention
• FIG. 2 is a tension automatic adjustment of the fanbel
• Reference numeral 1 in FIG. 1 denotes a crank pulley, which is fixed to a crankshaft end of an engine (not shown) to fan the engine. It is a power source that transmits power to the engine.
• Reference numeral 2 denotes a fan pulley, which is mounted on a shaft fixed to a bracket (not shown) of an engine front canopy, and has a front end on its end surface. Fan 3 is installed.
• Reference numeral 4 denotes a tension pulley, which is fitted to a shaft 6 attached to an engine front cover bracket (not shown) and swings. It is attached to the tip of Reno'5. A pin 9 is fixed to the other end of the lever 5. As shown in FIGS.
• a coil panel 7 is wound on the shaft 6 of the Leno 5. This allows you to label the tension pool 4 G. 8 is pressed to apply tension. Also, a bracket 20 having a hole 21 through which the adjustment bolt 13 passes is fixed to the engine front cover (not shown). Yes.
• An adjusting means 30 is attached to the bin 9 of the lever 5.
• the adjusting means 30 has a hole 11 at one end for loosely fitting with the pin 9, a yoke 10 having a screw portion 12 at the other end, and a yoke 10.
• Adjustment bolt 13 to be screwed with the screw part 12 and ⁇ nut 14 to fix the adjustment bolt 13 to the yoke 10 and this adjustment bolt It consists of a fixed bracket 20 that passes through 13.
• the belt 8 is properly stretched by the tension pulley 4 and the bin 9 of the lever 5 is moved to the yoke 1. Adjust so that it is in contact with the left end of the ⁇ hole 11 of 0 by adjusting bolt 13 screwed with screw portion 12. At this time, the head 15 of the adjustment bolt 13 is in contact with the bracket 20.
• tighten the lock nuts 14 to connect the yoke 10 and the adjustment bolt 13 together (see Fig. 2).
• the movement of the tension pulley 4 is not restricted, and follows the belt 8 to prevent relaxation.
• the movement of the tension pulley 4 is limited by the yoke 10 and the adjustment bolt 13 As a result, the belt 8 can be prevented from loosening, and a slip and so-called “squeal j” can be prevented.
• the present invention adjusts the tension of a fanbelt to prevent the fanbelt and crank pulley from slipping, thereby preventing the occurrence of "squeal".

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• Engineering & Computer Science (AREA)
• General Engineering & Computer Science (AREA)
• Mechanical Engineering (AREA)
• Devices For Conveying Motion By Means Of Endless Flexible Members (AREA)

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Publications (1)

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ID=15159249

Family Applications (1)

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Citations (2)

Family Cites Families (13)

• 1989
  • 1989-11-22 JP JP1989135761U patent/JPH085301Y2/ja not_active Expired - Lifetime
• 1990
  • 1990-11-14 US US07/849,445 patent/US5290207A/en not_active Expired - Lifetime
  • 1990-11-14 WO PCT/JP1990/001477 patent/WO1991007611A1/ja unknown

Patent Citations (2)

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