KR20110089039A - An automatic transmitter - Google Patents

An automatic transmitter Download PDF

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Publication number
KR20110089039A
KR20110089039A KR1020100009346A KR20100009346A KR20110089039A KR 20110089039 A KR20110089039 A KR 20110089039A KR 1020100009346 A KR1020100009346 A KR 1020100009346A KR 20100009346 A KR20100009346 A KR 20100009346A KR 20110089039 A KR20110089039 A KR 20110089039A
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KR
South Korea
Prior art keywords
centrifugal clutch
clutch
way
output
input shaft
Prior art date
Application number
KR1020100009346A
Other languages
Korean (ko)
Inventor
이광섭
Original Assignee
이광섭
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 이광섭 filed Critical 이광섭
Priority to KR1020100009346A priority Critical patent/KR20110089039A/en
Publication of KR20110089039A publication Critical patent/KR20110089039A/en

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    • 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
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D43/00—Automatic clutches
    • F16D43/02—Automatic clutches actuated entirely mechanically
    • F16D43/04—Automatic clutches actuated entirely mechanically controlled by angular speed
    • F16D43/14—Automatic clutches actuated entirely mechanically controlled by angular speed with centrifugal masses actuating the clutching members directly in a direction which has at least a radial component; with centrifugal masses themselves being the clutching members
    • F16D43/18—Automatic clutches actuated entirely mechanically controlled by angular speed with centrifugal masses actuating the clutching members directly in a direction which has at least a radial component; with centrifugal masses themselves being the clutching members with friction clutching members
    • 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
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D43/00—Automatic clutches
    • F16D43/30—Systems of a plurality of automatic clutches
    • 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
    • F16H33/00—Gearings based on repeated accumulation and delivery of energy
    • F16H33/02—Rotary transmissions with mechanical accumulators, e.g. weights, springs, intermittently-connected flywheels
    • F16H33/04—Gearings for conveying rotary motion with variable velocity ratio, in which self-regulation is sought
    • F16H33/08—Gearings for conveying rotary motion with variable velocity ratio, in which self-regulation is sought based essentially on inertia
    • F16H33/10—Gearings for conveying rotary motion with variable velocity ratio, in which self-regulation is sought based essentially on inertia with gyroscopic action, e.g. comprising wobble-plates, oblique cranks

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Structure Of Transmissions (AREA)

Abstract

PURPOSE: An automatic transmission is provided to install an output gear, which is accorded to an input gear, on an output. CONSTITUTION: An automatic transmission comprises an input shaft(100), a one-way centrifugal clutch(200), an input gear(300), an output shaft(400), and an output gear(500). The input shaft receives power. Two more one-way centrifugal clutches are successively installed on the input shaft from the row speed operating one-way centrifugal clutch toward the high speed operating one-way centrifugal clutch. The output shaft outputs the power. Two more output gears are successively installed on the output shaft from the larger external diameter output gears to the smaller one.

Description

Automatic Transmission {An Automatic Transmitter}

Figure 1. An embodiment of an automatic transmission using a conventional centrifugal clutch

2a to 2c is an embodiment of the one-way centrifugal clutch of the automatic transmission of the present invention

3 is an embodiment of an automatic transmission of the present invention

4 to 5 is another embodiment of the automatic transmission of the present invention

Description of the Related Art

1: drive shaft 2: centrifugal clutch 3: drive gear

4: bearing 5: driven shaft 6: one-way clutch bearing

7: driven gear 10: input shaft 20: hub

30: centrifugal weight 40: lining 50: return spring

60: clutch drum 70: arm 80: fixing means

90: frictional force relaxing means 100: input shaft 200: one-way centrifugal clutch

300: input gear 400: output shaft 500: output gear

600: one-way clutch bearing 700: centrifugal clutch

Forward: Forward Rotation Backward: Reverse Rotation

The present invention relates to an automatic transmission that transmits power in a manner in which a specific centrifugal clutch operates according to the rotational speed of the input shaft.

Korean Patent Publication No. 10-0600083 discloses an automatic transmission using a plurality of centrifugal clutches. The automatic transmission will be briefly described with reference to FIG. 1 as follows.

A plurality of centrifugal clutches 2 are installed on the drive shaft 1, and a drive gear 3 is provided on the outer circumferential surface of each centrifugal clutch. On the drive shaft, a centrifugal clutch operating at low speed, a centrifugal clutch operating at medium speed, and a centrifugal clutch operating at high speed are installed in this order. A plurality of one-way clutch bearings 6 are installed on the driven shaft 5, and driven gears 7 corresponding to the drive gears are installed on the outer circumferential surface of the one-way clutch bearings. The power transmission and shifting process is as follows.

When the drive shaft 1 rotates at a low speed, the centrifugal clutch operating at a low speed operates to transmit power to the drive gear and the driven gear corresponding to the low speed, and the rotational force is transmitted to the driven shaft through the one-way clutch bearing. When the drive shaft rotates at high speed, the centrifugal clutch operating at low speed and high speed operates to transmit power to the drive gear and the driven gear corresponding to the low speed and high speed, and the power is transmitted to the driven shaft through the one-way clutch bearing. do. Here, power transmission is driven only by the driven gear corresponding to the high speed to the driven shaft through the one-way clutch bearing, the other driven gear is idle.

The above automatic transmission is theoretically possible, but there is a serious problem that makes it difficult to commercialize. That is, the automatic transmission transmits power by using the one-way clutch bearing, which is difficult to withstand the shift shock in its structure. The shift shock is very large when shifting is performed while transmitting a large amount of power. This shift shock is likely to damage the internal structure and the bearing of the one-way clutch bearing. For this reason, it is difficult to commercialize a transmission using a centrifugal clutch.

The present invention intends to make an automatic transmission using a centrifugal clutch having a one-way clutch function (hereinafter referred to as "one-way centrifugal clutch"). Specifically, a plurality of one-way centrifugal clutches having a function of one-way clutches are arranged on the input shaft, and a specific one-way centrifugal clutch transmits power according to the rotational speed of the input shaft.

Conventional centrifugal clutches generally contact the clutch drum while the hub fixed to the input shaft rotates at a constant speed or more, moving to the edge of the hub, and with this contact, the rotational force of the input shaft is transmitted to the clutch drum. In the case where the centrifugal clutch moves to the edge of the centrifugal clutch, when the rotation speed of the clutch drum is faster than the rotation speed of the input shaft, the centrifugal weight and the clutch drum come into contact with the power transmission. The automatic transmission of the present invention uses a one-way centrifugal clutch having a one-way clutch function so that the rotation force of the input shaft is not transmitted to the clutch drum when the rotation force of the clutch drum is faster than the rotation speed of the input shaft.

2A to 2C are centrifugal clutches recently proposed in Korean Patent Application No. 10-2009-0076962. 2A to 2C are centrifugal clutches capable of transmitting the rotational force of the input shaft in the forward rotation (one direction), and this centrifugal clutch is referred to herein as "one-way centrifugal clutch 200".

Centrifugal clutches as shown in Figs. 2a to 2c have a hub 20, the main part of which is fixed on the input shaft 10; two or more centrifugal weights moving to the edge by centrifugal forces when the input shaft rotates above a certain speed. (30); lining (40) provided on the outer portion of the centrifugal weight; return spring (50) for pulling the centrifugal weight to the center of the hub; clutch drum (60) through which power is output; one side to the hub (20) Fixed, the other side is fixed to the centrifugal weight 30, the arm 70 for connecting the hub and centrifugal weight; frictional force relaxation means (90) provided on one side of the outer portion of the centrifugal weight " .

The operation of the centrifugal clutch in Figures 2a to 2b is as follows. Centrifugal force is generated in the centrifugal weight 30 when the input shaft 10 rotates forward at a specific speed or more, and at the same time, the lining 40 and the clutch drum 60 provided on the outer circumferential surface of the centrifugal weight are moved to the outside of the centrifugal weight. In contact with this, the clutch drum rotates at the same time. Through this process, the rotational force of the input shaft is transmitted to the clutch drum.

In FIG. 2C, the forward rotation speed of the clutch drum is faster than the forward rotation speed of the input shaft. As the clutch drum 60 pushes the centrifugal weight 30, the centrifugal weight fixed to the fixing means 80 rotates within a predetermined angle, and the frictional force relaxing means 90 and the clutch on one side of the outer portion of the centrifugal weight The drum is in contact. Therefore, the rotational force of the clutch drum is not transmitted to the input shaft. Wherein the friction force alleviating means 90 serves to alleviate the friction of the clutch drum and lining.

The automatic transmission of the present invention sequentially installs a plurality of one-way centrifugal clutches 200 on an input shaft, respectively installs input gears on the outer circumferential surface of the clutch drum of the centrifugal clutch, and a plurality of corresponding ones on the output shaft. Output gear was installed. Here, when the input shaft rotates at a high speed, a plurality of centrifugal clutches operate, but only the power of the centrifugal clutch that operates at the highest speed is transmitted to the output shaft. The clutch drum of the centrifugal clutch, which operates at a relatively low speed, rotates faster than the input shaft, and the rotational force of the output shaft is not transmitted to the input shaft by the friction force relaxing means.

Referring to the automatic transmission of the present invention with reference to the drawings in detail as follows. 3 to 5, L refers to a state in which the shift is "Low", M refers to a state in which the shift is "Middle", and H refers to a state in which the shift is "High". . First, the main parts and the operation of the present invention will be described with reference to FIG. 3.

The main part of the automatic transmission of the present invention is "two or more one-way centrifugal clutch 200 which is installed in order to the one-way centrifugal clutch operating at high speed from the one-way centrifugal clutch operating at low speed on the input shaft 100" power input; Two or more input gear 300 which is installed in the outer circumferential surface of the one-way centrifugal clutch from the small outer diameter to the larger outer diameter; output shaft 400 for outputting power; from the large outer diameter to the small outer diameter on the output shaft Two or more output gears 500 that are sequentially installed. A plurality of one-way centrifugal clutch 200 is installed on the input shaft 100, one-way centrifugal clutch operating at a high speed in order to operate at a relatively low speed. On the outer circumferential surface of the one-way centrifugal clutch 200, the input gear 300 is installed in order from a small outer diameter to a large outer diameter. A plurality of output gears 500 corresponding to the input gears 300 are installed on the output shaft 400.

The power transmission process of the automatic transmission using the one-way centrifugal clutch is as follows. Until the input shaft 100 operates the one-way centrifugal clutch corresponding to the low speed L, the power of the input shaft is not transmitted to the input gear and the output shaft. When the one-way centrifugal clutch corresponding to the low speed L is operated due to the increase in the rotational speed of the input shaft, power is supplied through the input gear 300, the output gear 500, and the output shaft 400 corresponding to the low speed L. Is passed. At this time, the output gear 500 and the input gear 300 corresponding to the medium speed (M) and the high speed (H) with the rotation of the output shaft rotates, where the centrifugal clutch corresponding to the medium speed and high speed does not operate, so the medium speed and high speed The rotational force of the input gear corresponding to is not transmitted to the input shaft. Therefore, the input gear 300 corresponding to the medium speed M and the high speed H performs idling.

When the one-way centrifugal clutch corresponding to the low speed (L) and the medium speed (M) is operated due to the increase of the rotation speed of the input shaft, the input gear 300, the output gear 500, and the output shaft 400 corresponding to the medium speed (M). Power is transmitted through). This is because the one-way centrifugal clutch corresponding to the low speed L does not transmit power when the one-way centrifugal clutch corresponding to the medium speed M operates. When the one-way centrifugal clutch corresponding to the medium speed M operates, the output gear and output shaft corresponding to the medium speed M, and the output gear corresponding to the low speed L rotate. In addition to the rotation of the output gear corresponding to the low speed L, the input gear corresponding to the low speed L rotates faster than the rotation speed of the input shaft by the gear ratio. Therefore, the rotational force of the one-way centrifugal clutch corresponding to the low speed L is not transmitted to the output shaft, and the rotational force of the output shaft is not transmitted to the input shaft with the action of the frictional force relaxing means. When the rotational speed of the input shaft decreases and the centrifugal clutch corresponding to the low speed L is operated again, power is transmitted to the input gear, the output gear, and the output shaft corresponding to the low speed. This process allows power to be automatically transferred at low, medium and high speeds.

4 is a modified example of the automatic transmission of the present invention shows a case of replacing the one-way centrifugal clutch 200 that transmits power at the lowest speed with the one-way clutch bearing 600. This automatic transmission is characterized by transmitting the rotational force of the input shaft to the output shaft at a low speed in which the centrifugal clutch does not operate.

5 is a modified example of the automatic transmission of the present invention has been shown to replace the one-way centrifugal clutch 200 for transmitting power at the highest speed with a conventional general centrifugal clutch (700). Such an automatic transmission has an advantage of replacing the one-way centrifugal clutch 200 having a relatively complicated structure with a centrifugal clutch 700 having a simple structure.

The automatic transmission of the present invention does not need an additional adjustment device for shifting because the shift is automatically adjusted according to the rotational speed of the input shaft. And no power loss occurs in the shifting process, and smooth shifting without shifting shock is possible. In this regard, the automatic transmission of the present invention may be one model that can replace the conventional automatic transmission.

Claims (3)

The main part of the present invention is "input shaft 100 is a power input is input; two or more one-way centrifugal clutch 200 which is installed in one direction from the one-way centrifugal clutch operating at high speed on the input shaft in turn; Two or more input gear 300 which is installed in the outer circumferential surface of the one-way centrifugal clutch from the smallest to the larger outer diameter; output shaft 400 to which power is output; installed from the larger outer diameter to the smaller outer diameter on the output shaft Two or more output gears 500 " An automatic transmission having a characteristic of transmitting a rotational force of the input shaft to the output shaft 400 by a specific one-way centrifugal clutch 200 according to the rotation speed of the input shaft 100. Automatic transmission to replace the one-way centrifugal clutch 200 operating at the lowest speed in claim 1 with the one-way clutch bearing 600 Automatic transmission to replace the one-way centrifugal clutch 200 that operates at the highest speed in claim 1 with a conventional general centrifugal clutch 700
KR1020100009346A 2010-01-29 2010-01-29 An automatic transmitter KR20110089039A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1020100009346A KR20110089039A (en) 2010-01-29 2010-01-29 An automatic transmitter

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1020100009346A KR20110089039A (en) 2010-01-29 2010-01-29 An automatic transmitter

Publications (1)

Publication Number Publication Date
KR20110089039A true KR20110089039A (en) 2011-08-04

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Family Applications (1)

Application Number Title Priority Date Filing Date
KR1020100009346A KR20110089039A (en) 2010-01-29 2010-01-29 An automatic transmitter

Country Status (1)

Country Link
KR (1) KR20110089039A (en)

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