KR101728440B1 - Rotation velocity synchronization device for transmission - Google Patents

Rotation velocity synchronization device for transmission Download PDF

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Publication number
KR101728440B1
KR101728440B1 KR1020160013035A KR20160013035A KR101728440B1 KR 101728440 B1 KR101728440 B1 KR 101728440B1 KR 1020160013035 A KR1020160013035 A KR 1020160013035A KR 20160013035 A KR20160013035 A KR 20160013035A KR 101728440 B1 KR101728440 B1 KR 101728440B1
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KR
South Korea
Prior art keywords
worm wheel
rotating body
pin
rotating
diameter
Prior art date
Application number
KR1020160013035A
Other languages
Korean (ko)
Inventor
박승욱
김진용
양인수
Original Assignee
자동차부품연구원
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Priority to KR1020160013035A priority Critical patent/KR101728440B1/en
Application granted granted Critical
Publication of KR101728440B1 publication Critical patent/KR101728440B1/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
    • F16H—GEARING
    • F16H59/00—Control inputs to control units of change-speed-, or reversing-gearings for conveying rotary motion
    • F16H59/36—Inputs being a function of speed
    • F16H59/38—Inputs being a function of speed of gearing elements
    • 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
    • F16D13/00—Friction clutches
    • F16D13/22—Friction clutches with axially-movable clutching members
    • F16D13/38—Friction clutches with axially-movable clutching members with flat clutching surfaces, e.g. discs
    • F16D13/52—Clutches with multiple lamellae ; Clutches in which three or more axially moveable members are fixed alternately to the shafts to be coupled and are pressed from one side towards an axially-located member
    • 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
    • F16D23/00—Details of mechanically-actuated clutches not specific for one distinct type
    • F16D23/02—Arrangements for synchronisation, also for power-operated 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
    • F16H1/00—Toothed gearings for conveying rotary motion
    • F16H1/02—Toothed gearings for conveying rotary motion without gears having orbital motion
    • F16H1/04—Toothed gearings for conveying rotary motion without gears having orbital motion involving only two intermeshing members
    • F16H1/12—Toothed gearings for conveying rotary motion without gears having orbital motion involving only two intermeshing members with non-parallel axes
    • F16H1/16—Toothed gearings for conveying rotary motion without gears having orbital motion involving only two intermeshing members with non-parallel axes comprising worm and worm-wheel
    • F16H1/166—Toothed gearings for conveying rotary motion without gears having orbital motion involving only two intermeshing members with non-parallel axes comprising worm and worm-wheel with members rotating around axes on the worm or worm-wheel
    • 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
    • F16H3/00—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion
    • F16H3/02—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion without gears having orbital motion
    • F16H3/06—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion without gears having orbital motion with worm and worm-wheel or gears essentially having helical or herring-bone teeth
    • 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
    • F16H3/00—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion
    • F16H3/02—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion without gears having orbital motion
    • F16H3/08—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion without gears having orbital motion exclusively or essentially with continuously meshing gears, that can be disengaged from their shafts
    • F16H3/12—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion without gears having orbital motion exclusively or essentially with continuously meshing gears, that can be disengaged from their shafts with means for synchronisation not incorporated in the 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
    • F16H57/00—General details of gearing
    • F16H57/02—Gearboxes; Mounting gearing therein
    • F16H57/021—Shaft support structures, e.g. partition walls, bearing eyes, casing walls or covers with bearings
    • 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
    • F16H61/00—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing
    • F16H61/22—Locking of the control input devices

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Gear Transmission (AREA)

Abstract

The present invention relates to a transmission, connecting a first rotor and a second rotor rotating at different rotational speeds to be rotated at the same rotational speed. More specifically, the transmission enables the rotational speed of the first rotor and the second rotor to be synchronized through a worm wheel, a worm wheel support body, and a rotating device to reduce a shifting impact and prevent an additional power loss to efficiently use power.

Description

[0001] ROTATION VELOCITY SYNCHRONIZATION DEVICE FOR TRANSMISSION [0002]

The present technology relates to a rotational speed synchronizing device for a transmission (hereinafter referred to as " transmission "). In particular, the present technology relates to a transmission that is implemented purely as a mechanical type, minimizes power loss, and further reduces the shift shock by progressively shifting gears when shifting.

The application number "10-2011-0074839" discloses a two-speed transmission for electric vehicles.

The transmission is a device that transmits the power generated by the power source to the necessary rotational force by using the connection relationship of the gear structure.

The conventional transmission is a system in which a hydraulic device is used or a gear is changed by using a separate control device or the like. Therefore, in the conventional transmission, there is a problem that a power loss occurs in the process of operating a separate device when the gear is changed, the structure of the transmission is complicated, and a complicated control logic must be implemented.

In addition, in the conventional transmission, shifts are not progressively changed in the process of connecting the gears when the gears are shifted, thereby causing a shift shock.

Therefore, a shift device that shifts by shifting the rotating body gradually by rotating at different rotational speeds is required in order to prevent the power from being wasted and operated only mechanically.

It should be understood that the foregoing description of the background art is merely for the purpose of promoting an understanding of the background of the present invention and is not to be construed as an admission that the prior art is known to those skilled in the art.

It is an object of the present invention to provide a speed change device that uses mechanical power of the power source by minimizing energy consumption during shifting by using a mechanically implemented device.

The transmission of the present invention has a purpose of providing a shift device in which a shifting shock is minimized since the connecting process is progressively performed when two rotors rotating at different speeds are connected.

The technical problem to be solved by the present invention is not limited to the above-mentioned technical problems and other technical problems which are not mentioned can be clearly understood by those skilled in the art from the following description will be.

The speed change device of the present invention includes a first rotating body, a second rotating body, a worm wheel, a worm wheel supporting body, and a rotation control device.

The first rotating member rotates at a first rotating speed.

The second rotating body is located on the other side of the first rotating body, and a worm shaft including spiral teeth is formed around the outer surface, and rotates at a second rotating speed.

The worm wheel meshes with the second rotating body and rotates, and rotation locking portions are formed at both ends.

Here, the rotation locking portion may be a groove.

The worm wheel support body may be provided in at least one pair so as to be symmetrical with respect to the second rotary shaft.

Here, each of the worm wheel supporting bodies can slide and move along the rotation axis direction of the first rotating body.

Further, the worm wheel supporting body is connected to rotate with the first rotating body.

Further, the worm wheel supporting body is formed to include the bearing portion. Here, the bearing portion rotatably supports one end of the worm wheel.

Further, the worm wheel supporting body includes a pressed portion.

Here, the pressing portion presses the first rotating body when the worm wheel supporting body slides in the first rotating direction.

The worm wheel supporting body is formed with a pin groove.

Here, the pin groove is movable through the engagement pin.

Here, the pin groove receives a portion of the first diameter portion and the second diameter portion of the engagement pin.

That is, the remaining part of the first diameter portion of the coupling pin is exposed to the outside of the pin groove.

Here, the first diameter portion of the engagement pin is inserted into the engagement pin insertion groove formed in the frame.

Here, a step is formed by the difference in diameter between the first diameter portion and the second diameter portion.

The rotation control device is configured to include a locking engagement portion.

Here, the locking coupling portion may be a coupling pin that is inserted into the groove by a predetermined length.

Here, the engagement pin is composed of a first diameter portion and a second diameter portion. The second diameter portion is formed larger in diameter than the first diameter portion.

Here, the locking engagement portion is engaged with the rotation locking portion of the worm wheel to stop the rotation of the worm wheel.

That is, it is rotatable together with the worm wheel supporting body which is connected to the rotation of the first rotation body and rotates. Therefore, the teeth of the worm wheel rotate in a state of being engaged with the spiral teeth of the second rotating body. Here, the worm wheel and the worm wheel supporting body rotate around the second rotating body and move in the direction of the first rotating body.

Here, the pressing portion of the worm wheel supporting body presses the first rotating body gradually so as to match the first rotating speed of the first rotating body and the rotating speed of the second rotating body.

Further, the rotation control device may further include a frame.

Here, the frame is positioned above the worm wheel support body and formed along the axial direction of the worm wheel. At both ends of the frame, a coupling pin insertion groove into which the coupling pin is inserted is formed.

Here, the engagement pin has a stepped portion formed on the engagement pin according to the difference in diameter between the first diameter portion and the second diameter portion.

A pin motion device is formed on the other side of the second rotary member.

Pinning can lift the frame. That is, as the frame moves in the lift motion, the pinning mechanism lifts the engagement pin inserted in the engagement pin insertion groove of the frame.

When the engaging pin is provided in the pin groove, a spring is provided between the end of the pin groove and the step.

Here, when the pin motion device lifts the frame, the engagement pin is lifted and moved upward according to the frame to press the spring as the distance between the step and the end of the pin groove becomes shorter, When the movement is not performed, the binding pin is moved downward by the elastic force of the spring.

Here, the pinning pitch can be located between the worm wheel and the frame.

In addition, the pinning mechanism includes a lift portion formed with a predetermined length.

Also, the pinning exercise device is slidable in one direction and the other direction.

That is, when the pin exercising apparatus observes the process of interlocking with the frame, the pin exercising apparatus moves in one direction, the lift section moves to the lower portion of the frame, lifts the frame by the predetermined length, I will go.

Here, a roller may be formed at a portion where the frame abuts the lift portion.

Further, it may be formed to include the first whole hollow portion.

Here, the projecting portion may have a rectangular shape with a predetermined thickness at a symmetrical position with a predetermined interval at the hollow portion with the hollow portion therebetween.

Here, the worm wheel supporting body can be connected to the rotating body while being supported while abutting against the projection.

Further, the worm wheel supporting body is formed to include the first body and the second body.

Here, the diameter of the first body is not less than the diameter of the second body. Because of this difference in diameter, a body step is formed in the worm wheel supporting body.

Here, the diameter of the first body may be defined as a first body diameter, and the diameter of the second body may be defined as a second body diameter.

The outer surface of the second body is abutted against the inner surface of the protrusion, and the body step is abutted against the upper surface of the protrusion to support the worm wheel support body. Because of this supporting state, the worm wheel supporting body can be slid to the first rotating body.

The worm wheel support body is formed in such a manner that the first body is positioned at least not less than the length between the upper surface or the lower surface of the projection and the second body connects between the first bodies.

Further, the above-mentioned bearing portion is formed in a shape passing through the body step.

Here, the pressing portion is configured to be capable of gradually pressing when the worm wheel and the worm wheel supporting body move in the first rotating direction to press the first rotating body.

In addition, when the first rotating body and the second rotating body are connected by a multi-plate clutch so that the pressing portion presses the first rotating body, the first rotating body and the second rotating body can be rotationally connected such that the first rotating speed and the second rotating speed are the same.

Since the transmission having the above-described structure is a mechanically-implemented transmission that does not require a separate hydraulic device or a separate control device, the power to be wasted can be minimized and the power can be efficiently utilized.

In the transmission constructed as described above, when connecting the different rotors, since the connection process is progressively performed, the electronic control device for absorbing the shift shock can be omitted.

In the transmission configured as described above, when connecting the different rotors, the shifting process is progressively performed, so that the shifting shock can be minimized.

FIG. 1A is an exploded view of a transmission according to a first embodiment of the present invention, and FIG. 1B is a perspective view of a transmission according to a first embodiment of the present technology.
FIG. 2A is a view showing the free state of the transmission according to the second embodiment of the present technology, and FIG. 2B is a view illustrating a connection state of the transmission according to the second embodiment of the present technology.
FIG. 3A is an enlarged view of a worm wheel supporting body according to a first embodiment of the present invention, and FIG. 3B is an enlarged view of a coupling pin according to the first or second embodiment of the present invention.
FIG. 4A is a view showing a free state of the transmission according to the first embodiment of the present technology, and FIG. 4B is a diagram showing a connection state of the transmission according to the first embodiment of the present technology.

Hereinafter, one embodiment of the present technology will be described in detail with reference to exemplary drawings. However, this is not intended to limit the scope of the present technology.

It should be noted that, in adding reference numerals to the constituent elements of the drawings, the same constituent elements are denoted by the same reference symbols as possible even if they are shown in different drawings. In the following description of the present invention, a detailed description of known functions and configurations incorporated herein will be omitted when it may make the subject matter of the present invention rather unclear.

In addition, the size and shape of the components shown in the drawings may be exaggerated for clarity and convenience of explanation. In addition, terms specifically defined in consideration of the structure and operation of the present technology are intended to illustrate embodiments of the present technology, and do not limit the scope of the present technology.

Further, when the transmission according to the embodiment of the present technology is described or understood, the symmetrical parts are described only as the upper part with reference to the drawings for clarity of explanation. It is to be understood, however, that the description and scope of the present invention are not limited to the description.

FIG. 1A is an exploded view of a transmission according to a first embodiment of the present invention, and FIG. 1B is a perspective view of a transmission according to a first embodiment of the present technology.

FIG. 2A is a view showing the free state of the transmission according to the second embodiment of the present technology, and FIG. 2B is a view illustrating a connection state of the transmission according to the second embodiment of the present technology.

FIG. 3A is an enlarged view of a worm wheel supporting body according to a first embodiment of the present invention, and FIG. 3B is an enlarged view of a coupling pin according to the first or second embodiment of the present invention.

The transmission according to the first or second embodiment of the present invention includes a first rotating body 10, a second rotating body 20, a worm wheel 30, a worm wheel supporting body 40, ≪ / RTI >

The first rotating body 10 rotates at a first rotating speed. The first rotating body 10 may have a cylindrical shape, and the hollow portion 11 may be formed on the upper surface of the first rotating body 10. The hollow portion 11 can receive one side of the second rotating body 20.

The first rotating body 10 according to the first embodiment of the present invention includes a plurality of protrusions 12 extending from one side to the other in a symmetrical position with a predetermined interval between the hollows 11, .

The projecting portion 12 is formed with a predetermined thickness a1 and a predetermined length L1.

The predetermined thickness a1 of the protruding portion 12 may be a thickness enough to abut the body step 43 of the worm wheel supporting body 40 to be described later.

The predetermined length L1 of the protruding portion 12 may be long enough to abut the outer surface 42b of the second body 42 of the worm wheel supporting body 40 to be described later.

The shape of the protruding portion 12 is formed in a rectangular shape in a part of its cross section. In addition, the projecting portion 12 may be formed with the inclined portion and the connection groove 12f of the projecting portion 12. [

Here, the inclined portion of the protruding portion 12 may be formed to extend in the axial direction from the other side of the square formed portion. That is, the inclined portion of the protruding portion 12 is formed to be inclined in the axial direction in the upper surface 12c and the lower surface 12d of the square formed portion.

The inclined portion of the projecting portion 12 may be composed of an upper inclined portion 13a and a lower inclined portion 13b.

The connecting groove 12f of the protruding portion 12 may be formed between the upper inclined portion 13a and the lower inclined portion 13b. That is, when the protruding portion 12 is viewed from the upper side to the lower side with reference to FIG. 1, the upper inclined portion 13a, the connecting groove 12f, and the lower inclined portion 13b can be observed.

The protruding portion 12 is configured to include an inner surface 12a which faces the worm wheel supporting body 40 to be described later and abuts against and an outer surface 12b opposite to the inner surface 12a.

The connecting groove 12f of the protruding portion 12 connects the one-way clutch 60 and the pin motion device 70 with the first rotating body 10, as will be described later.

Although not shown in the figure, a plurality of teeth are formed on the outer circumferential surface of the first rotating body 10 along the outer circumferential surface.

A plurality of teeth formed on the outer circumferential surface of the first rotating body 10 are engaged with a tooth connected to a shaft of a motor not shown. Therefore, in the first rotating body 10, the first rotating body 10 can rotate in accordance with the rotation of the motor.

The first rotating body 10 may be formed by including a multi-plate clutch 15. As will be described later, the first rotating body 10 is connected to the second rotating body 20 through the multi-plate clutch 15 and can rotate.

Here, according to the first embodiment, the position where the multi-plate clutch 15 of the present technology transmission is installed can be observed from one side of the outer peripheral surface. According to the second embodiment, the first rotating body 10 The first rotating body 10 may be formed (not shown) along one side of the first rotating body 20 to receive the second rotating body 20.

The multi-plate clutch 15 frictionally couples the first rotating body 10 and the second rotating body 20 and coincides with the rotating speed. Details will be described later.

The second rotating body (20) is located on the other side with respect to the first rotating body (10). And the second rotating body 20 rotates at the second rotating speed. Here, the second rotating body 20 can rotate with the same axis as the first rotating body 10.

In addition, the second rotating body 20 may be formed in the shape of an annular rod along the axial direction.

A worm shaft 21 including spiral teeth may be formed around the outer circumference of the second rotating body 20.

The helical teeth 31 of the second rotating body 20 are engaged with the worm wheel 30. That is, the worm wheel 30 is rotatably connected to the second rotator 20 through the meshing, and when the second rotator 20 rotates, the worm wheel 30 also rotates.

The second rotating body 20 can be rotatably connected to the first rotating body 10 through the multiple disc clutch 15. [

That is, according to the first embodiment, the first rotating body 10 and the second rotating body 20 are connected to each other through the multi-plate clutch 15 formed in a cylindrical shape on the outer peripheral surface of one side of the first rotating body 10 This is because a plurality of first friction plates, which are formed with friction and rotate together with the first rotating body 10, and a plurality of second friction plates, which are also connected to the second rotating body 20 by friction, So that the first rotation speed and the second rotation speed can be matched.

That is, according to the second embodiment, when friction is formed around the hollow portion 11 (the other side surface) of the first rotating body 10 so that the first rotating body 10 is pressed in one direction, The rotating body (10) and the second rotating body (20) are rotationally connected to each other at the same rotational speed through frictional engagement.

Here, the plurality of plates connected to the second rotating body 20 may be disposed at a predetermined interval between the plurality of plates connected to the first rotating body 10, if only the part of the multiple plate clutch 15 is viewed.

In other words, when a part of the multi-plate clutch 15 is viewed from one side to the other side, a first friction plate connected to the first entire body, a second friction plate connected to the second body 20, And the second friction plate connected to the second rotary member 20 are arranged in the repeated order.

In this case, when the first rotating body 10 is pressed in one direction, the plurality of first friction plates gradually move in one direction and frictionally engage with the second friction plates. As a result, the first rotating body 10 and the second rotating body 10 The rotation speed of the whole body 20 can be matched and rotated.

The worm wheel 30 is disposed in an axial direction perpendicular to the second rotating body 20 at an upper portion of the second rotating body 20 in such a manner that the worm wheel 30 meshes with the spiral teeth of the second rotating body 20.

According to the first embodiment, the worm wheel 30 can be disposed at the upper portion and the lower portion of the second rotating body 20, respectively.

The worm wheel 30 is formed to have a bar shape having a predetermined length. The predetermined length of the worm wheel 30 is not less than the diameter of the second rotating body 20, It can be formed not so large.

The worm wheel 30 is formed to include a helical gear 31 that meshes with the helical gear of the second rotating body 20 at the center of the outer peripheral surface of the rod. Therefore, the worm wheel 30 can freely rotate in accordance with the rotation of the second rotator 20.

A rotation locking portion is formed on the outer circumferential surfaces of both ends of the worm wheel 30.

Here, the rotation locking portion may be a groove 32 formed in a columnar shape. These grooves 32 are formed to have a set depth (or length).

The worm wheel supporting body 40 may be positioned on both sides of the second rotating body 20 with the predetermined length L1. That is, the worm wheel supporting body 40 is disposed so as to be perpendicular to the axial direction of the worm wheel 30 and the axial direction of the first or second rotating body with the second rotating body 20 therebetween.

The worm wheel support body 40 includes a first body 41 and a second body 42.

The first body 41 has a first body diameter and the second body 42 has a second body diameter, wherein the first body diameter is formed not less than the second body diameter.

According to the first embodiment, the worm wheel supporting body 40 is composed of two sets of the first body 41 and the second body 42 is composed of one set.

The worm wheel support body 40 is disposed such that the length of the first body 41 is not less than the length between the upper surface 12c and the lower surface 12d of the projection 12, And the body 42 may be connected to each other.

That is, it can be observed that the worm wheel supporting body 40 is composed of the first body 41, the second body 42, and the first body 41 in the downward direction.

The body step 43 is formed by the difference in the diameters of the first body 41 and the second body 42.

The body step 43 of the worm wheel supporting body 40 is formed so that the upper surface 12c of the protrusion 12 and the lower surface 12d of the worm wheel supporting body 40 are formed so that the length of the second body 42 is not less than the length of the protrusion 12. [ Respectively.

The worm wheel supporting body 40 is constituted by an inner surface 42a which faces the second rotating body 20 and an outer surface 42b which faces the protruding portion 12. [

The worm wheel supporting body 40 is formed with a pin groove 44 passing straight through the bearing portion 45 on the upper surface or the lower surface.

The pin groove 44 may be positioned with a coupling pin 51 to be described later.

The pin groove 44 is formed in a circular shape and is formed of a first pin groove 44a and a second pin groove 44b.

Here, the first pin groove 44a is formed to have a smaller diameter than the second pin groove 44b.

The diameter of the first pin groove 44a is formed to be at least smaller than the diameter of the first diameter portion 51a of the engaging pin 51 to be described later and the diameter of the second pin groove 44b is smaller than the diameter of the engaging pin 51 Is formed not to be at least smaller than the diameter of the second diameter portion (51b) but larger than the diameter of the first diameter portion (51a).

The outer surface 42b of the worm wheel supporting body 40 is in contact with the inner surface of the protruding portion 12 as shown in FIG. And the body step 43 formed on the upper and lower portions of the worm wheel supporting body 40 are supported while being in contact with the upper surface 12c and the lower surface 12d of the protrusion 12, respectively.

Accordingly, the worm wheel supporting body 40 is formed so as to be slidable in one direction or the other direction while being supported while being in contact with the surface of the protrusion 12 of the first rotating body 10.

The worm wheel supporting body (40) comprises a bearing portion (45).

Referring to the drawing of the first embodiment, the bearing portion 45 is formed in a shape that passes through the body step 43 in a circular shape.

According to the first embodiment, the bearing portion 45 is formed to pass through the body step 43 formed on the upper and lower portions of the worm wheel supporting body 40.

That is, two bearing portions 45 may be formed on the worm wheel supporting body 40.

The bearing portion 45 supports the end of the worm wheel 30 so as to be rotatable.

That is, the bearing portion 45 does not interfere with the rotation of the worm wheel 30 when the worm wheel 30 meshes with the second rotating body 20 and rotates.

The worm wheel 30 inserted into the bearing portion 45 is an end portion of the worm wheel 30 having a rotation locking portion.

The bearing portion 45 is formed through the body step 43. The bearing portion 45 is formed through a part of the first body 41 and a part of the second body 42. [

The surface of the worm wheel support body 40 on which the body step 43 abuts the protrusion 12 may be the body step 43 in which the bearing part 45 is not formed and not the entire surface of the body step 43 .

The surface of the body step 43 and the bearing part 45 are formed so that the upper surface 12c of the protruding part 12 is in contact with the protruding part 12 in the direction from the one side to the other side with respect to the worm wheel supporting body 40. [ Or the portion of the body step 43 that does not abut the lower surface 12d.

That is, the worm wheel supporting body 40, which contacts the upper surface 12c or the lower surface 12d of the protruding portion 12, has only the remaining portion in addition to the portion where the bearing portion 45 is formed on the surface of the body step 43, Lt; / RTI >

The protrusion 12 supports the worm wheel supporting body 40 and rotates the worm wheel supporting body 40 in accordance with the rotation of the first rotating body 10.

Further, the worm wheel supporting body 40 rotatably supports the worm wheel 30 through the bearing portion 45.

Therefore, the pair of worm wheel supporting bodies 40 rotate around the second rotating body 20 by positioning the second rotating body 20 in accordance with the rotation of the first rotating body 10, The worm wheel 30 inserted into and connected to the bearing portion 45 of the supporting body 40 also rotates around the second rotating body 20. [

That is, the worm wheel 30 revolves around the second rotating body 20 while rotating with the spiral teeth of the second rotating body 20. Further, the worm wheel supporting body 40 revolves around the second rotating body 20.

Further, the worm wheel supporting body 40 can be formed with a pressing portion.

The pressing portion may be formed on one side of the worm wheel supporting body 40.

Such a pressing portion may be an elastic means. The pressing portion serves to push the first rotating body 10 in one direction when the worm wheel supporting body 40 is slid in the direction of the first rotating body 10 while being supported by the protrusion 12. [ Therefore, the pressing portion is formed by the elastic means, and the worm wheel supporting body 40 gradually presses the first rotating body 10. The first rotating body 10 and the second rotating body 20, which are different in speed from each other, are gradually connected to each other through the progressive unidirectional compression of the pressed portion. Thus, the shifting shock is reduced through this gradual connection.

The rotation control device 50 is constituted by a locking engagement portion and a frame 52.

The frame 52 is disposed at an upper portion of the worm wheel 30 and is formed along the direction of the rotation axis of the worm wheel 30. The diameter of the frame 52 is at least smaller than the diameter of the second rotating body 20 .

The frame 52 is disposed on the upper or lower portion of the worm wheel 30 and is formed along the direction of the rotation axis of the worm wheel 30, .

It goes without saying that the frame 52 is located at the lower portion of the worm wheel 30 when the worm wheel 30 is positioned at the lower portion in the drawing.

The frame 52 may have engagement pin insertion grooves 53 at both ends thereof. In the engaging pin insertion groove 53, a coupling pin 51 to be described later is inserted. The engaging pin insertion groove 53 may be formed in a circular shape.

At the center of the frame 52, a roller 54 may be formed.

The locking engagement portion may be the engagement pin 51.

The engaging pin 51 is formed to have a length L2 set in the vertical direction. The engaging pin 51 is inserted into the pin groove 44 (32) formed in a direction perpendicular to the worm wheel supporting body 40.

The engaging pin 51 is inserted into the groove 32 of the worm wheel 30 and interferes with the rotation of the worm wheel 30 to rotate with the second rotating body 20. That is, when the engaging pin 51 is inserted, the worm wheel 30 is rotated about the second rotating body 20 while being prevented from rotating. That is, the worm wheel 30 does not rotate but revolves around the second rotating body 20.

The engagement pin 51 is composed of a first diameter portion 51a and a second diameter portion 51b. The diameter of the first diameter portion 51a is formed not to be at least larger than the diameter of the second diameter portion 51b.

The coupling pin 51 is composed of a first diameter portion 51a and a second diameter portion 51b having diameters different from each other.

When the engaging pin 51 is inserted into the pin groove 44, the entire engaging pin 51 is not inserted but only a part of the engaging pin 51 is inserted. That is, the pin groove 44 receives the second diameter portion 51b of the engaging pin 51 and a portion of the first diameter portion 51a, and the other end of the first diameter portion 51a, which is not accommodated in the pin groove 44 Is exposed to the outside of the worm wheel supporting body (40).

The first diameter portion 51a of the coupling pin 51 exposed to the outside is inserted into the coupling pin insertion groove 53 of the frame 52. Therefore, the engaging pin 51 can move upward when the frame 52 moves upward, and the same when the frame 52 moves in the opposite direction.

Here, a spring 55 may be installed on the coupling pin 51 inserted in the pin groove 44 so as to surround the coupling pin 51.

The spring 55 is formed to surround the outer circumference of the first diameter portion 51a. The length of the spring 55 is greater than the length of the first diameter portion 44a of the worm wheel supporting body 40 from the first pin groove 44a, 51a and the second diameter portion 51b by a difference in diameter.

That is, the length of the spring 55 may be a length between the first diameter portion 51a of the engaging pin 51 accommodated in the pin groove 44 and the step difference.

Also, the predetermined diameter of the spring 55 is formed not to be at least larger than the diameter formed by the difference in diameters of the first diameter portion 51a and the second diameter portion 51b.

Therefore, the diameter of the first diameter portion 51a and the diameter of the spring 55 are not at least larger than the diameter of the second diameter portion 51b.

Thus, the engaging pin 51 is inserted into the pin groove 44 with the spring 55 installed. Therefore, when the coupling pin 51 is upwardly moved by applying a force to the coupling pin 51, the length between the first pin groove 44a of the pin groove 44 and the step is reduced, and the spring 55 is contracted , The engagement pin 51 moves downward by the restoring force of the spring 55 and returns to the original position when the force to lift it upward is released.

Therefore, the set length of the coupling pin 51 should be determined using the above-described principle. That is, when the force for lifting the engagement pin 51 is applied, the length of the engagement pin 51 moves upward while the spring 55 is contracted, and at the same time, the engagement pin 51 is engaged with the worm wheel 30 When the force is released, it is moved downward by the restoring force of the spring 55 to return to the original position and the groove 32 having the set depth of the worm wheel 30 is set to a length that can not be inserted into the groove 32, So as to prevent the worm wheel 30 from rotating.

The diameter of the second diameter portion 51b is formed to be deformed, and is composed of a portion where the diameter is kept constant and a portion where the diameter is continuously decreased.

However, in the second diameter portion 51b, the portion where the diameter decreases continuously is reduced in diameter to only a certain length, and is connected to a flat surface without further decreasing the diameter.

It is a matter of course that the groove 32 of the worm wheel 30 should have a diameter enough to insert the portion of the engagement pin 51 where the diameter of the second diameter portion 51b is retained.

The transmission according to the embodiment of the present technology may be configured to include the pin drive device 70. [

The pin motion device 70 may be positioned on the other side with respect to the second rotating body 20. [

The pin motion device 70 can lift the frame 52 of the rotation control device 50. [ Therefore, when the frame 52 is lifted by the pin moving device and moves upward, the engaging pins 51 move upward as described above.

The pin exercise device 70 has a hollow portion 11 and a lift portion 71 formed thereon.

The lift portion 71 of the pin exercise device 70 serves to lift the frame 52.

The hollow portion of the pin motion device (70) is located on the other side of the second rotating body (20).

The pin motion device 70 can position the portion formed along the axial direction of the second rotating body 20 in the hollow portion and slide the moving distance set in one direction and the other direction.

The lift portion 71 of the pin motion device 70 is positioned between the worm wheel 30 and the frame 52 of the rotation control device 50 in a shape protruded to one side from the other side. Here, according to the first embodiment, it is natural that the lift portion 71 is symmetrically formed at the upper portion and the lower portion.

The lift portion 71 is formed with a predetermined thickness a2 and a predetermined length L2.

In addition, the lift portion 71 is formed with an inclined portion 72 at a portion where it abuts the frame 52. The inclined portion 72 of the lift portion 71 is formed by being inclined from the outer surface of the lift portion 71 to the inner surface.

The predetermined thickness a1 of the lift portion 71 is required to pass through between the pin grooves 44 of the rotation control device 50 when the pin motion device 70 slides in one direction, And the engaging pin insertion grooves 32 formed in the engaging pin insertion grooves 32a.

The pin motion device 70 slides in one direction to lift the frame 52 by a predetermined length L2 of the lift portion 71, . The engaging pin 51 inserted into the engaging pin inserting groove 53 of the frame 52 is also raised by the set length L2 when the frame 52 is lifted by the set length L2. In this case, the lift portion 71 is moved to the lower portion of the frame 52 by the rotation of the roller 54 when the lower portion of the frame 52 is moved. When the engaging pin 51 is lifted by the set length L2, the distance between the stepped portion of the first pin groove 44a and the engaging pin 51 is shortened so that the spring 55 is pressed.

In this manner, the pin motion device 70 moves the engagement pin 51 in the upward direction.

When the pin motion device 70 moves to the other side, the lift portion 71 does not come into contact with the frame 52 of the rotation control device 50. Therefore, the force that lifts the frame 52 to the set length L2 is lost, and the frame 52, to which the force is not applied, returns to its original position. Further, the engaging pin 51 is returned to its original position by the restoring force of the spring 55.

When the coupling pin 51 returns to its original position, the worm wheel 30 is inserted into the groove 32 of the worm wheel 30, preventing the worm wheel 30 from rotating with the second rotating body 20.

In the transmission of this technique, a one-way clutch 60 may be installed on one side of the pin drive device 70. The one-way clutch 60 allows the worm wheel 30 and the worm wheel supporting body 40 to move only in one direction to press the first rotating body 10. If the worm wheel 30 and the worm wheel supporting body 40 And does not allow the rotation in the opposite direction to move in the direction in which the first rotating body 10 is not pressed.

The one-way clutch (60) has a cut-out portion (61) formed in a rectangular space. The cut portion 61 is formed in a shape penetrating the one-way clutch 60 in the axial direction.

Therefore, the upper inclined portion 13a and the lower inclined portion 13b of the protruding portion 12 are located on the cut portion 61. [ That is, the upper portion of the cut portion 61 formed by the square shape of the one-way clutch 60 is located at the upper inclined portion 13a of the projecting portion 12 and the lower portion of the cut portion 61, A portion 13b is located.

A connecting surface 62 of the one-way clutch 60 is formed between the cut portions 61. The length of the connecting surface 62 is similar to the length of the connecting groove 12f of the protruding portion 12. Therefore, the connecting surface 62 is located in the connecting groove 12f.

That is, the one-way clutch 60 is connected to the first rotating body 10 because the cutting portion 61 is in surface contact with the protruding portion 12. Therefore, when the first rotating body 10 rotates in a specific direction, the one-way clutch 60 also rotates.

The pin exercise device 70 is formed with a cutting groove 73 penetrating in the axial direction so that the upper inclined portion 13a and the lower inclined portion 13b of the projection 12 penetrate through the cutting groove 73, do.

The cutting grooves 73 of the pin drive device 70 are arranged such that when the one-way clutch 60 is positioned coaxially with the center of the pin drive device 70 on one side or the other side, Are formed so as to correspond to the positions of the cut portions 61 formed.

Therefore, the pin motion device 70 can be connected to the first rotating body 10 through the projecting portion 12, and thus rotates in the same rotating direction as the first rotating body 10.

FIG. 4A is a view showing a free state of the transmission according to the first embodiment of the present technology, and FIG. 4B is a diagram showing a connection state of the transmission according to the first embodiment of the present technology.

4A, the free rotation state of the transmission according to the embodiment of the present technology will be described.

The first rotating body 10 is connected to the pair of worm wheel supporting bodies 40, the one-way clutch 60, and the pin moving device 70 through the projecting portions 12.

Further, the worm wheel supporting body 40 is connected to the worm wheel 30 via the bearing portion 45.

The worm wheel supporting body 40, the worm wheel 30, the one-way clutch 60, and the pin motion device 70, which rotate the first rotating body 10 in a specific one- And rotates at a first rotational speed in a specific one direction.

In this case, since the pin motion device 70 moves in one direction and slides, the frame 52 of the rotation control device 50 is in contact with the lift portion 71. [ That is, the outer surface of the lift portion 71 and the inner surface of the frame 52 are in contact with each other. The lift portion 71 can be easily moved to the lower portion of the frame 52 due to the roller 54 and the inclined portion 72 of the frame 52 as will be apparent from the foregoing description.

The engaging pin 51 inserted into the engaging pin inserting groove 53 at both ends of the frame 52 is lifted up to the predetermined length L2 L2). In this case, the spring 55 provided on the engaging pin 51 also contracts.

Therefore, the worm wheel 30 can rotate freely without any interference in the state where it is engaged with the second rotating body 20.

In this free-rotation state, the worm wheel 30 can freely rotate with the second rotating body 20, and therefore, the worm wheel supporting body 40 does not slide in one direction.

The connection state of the transmission according to the embodiment of the present invention will be described with reference to FIG. 4B.

When the pin moving device 70 moves in the other direction and there is no portion in contact with the frame 52 in the freely rotating state of the above-described transmission, the frame 52 is lifted by the lift portion 71 L2).

In this case, the pressurized spring 55 of the coupling pin 51 elastically returns to its original length. When the engaging pin 51 is moved to the original length, the groove 32 of the worm wheel 30 is rotated, As shown in FIG.

Therefore, the worm wheel 30 can no longer rotate freely with the second rotating body 20, and is connected to the worm wheel supporting body 40 and rotated by the first rotating body 10.

Therefore, the worm wheel 30 and the worm wheel supporting body 40 are moved in one direction with the spiral gear of the second rotating body 20 engaged with each other.

In this case, the first rotating body 10 is gradually pressed through the pressed portion formed on the worm wheel supporting body 40.

The first rotating body 10, which has been pressurized, is progressively pressed in one direction, and gradually rotated in rotation speed with the second rotating body 20 through the multi-plate clutch 15 formed on one side.

That is, the first rotation speed and the second rotation speed coincide.

In this case, the one-way clutch 60 prevents the worm wheel 30 and the worm wheel supporting body 40 from rotating in the other direction to release the pressing force for pressing the first rotating body 10.

By the above-described operation, the transmission of the present technology connects the first rotating body 10 and the second rotating body 20 in such a manner that the first rotating speed and the second rotating speed of the first rotating body 10 coincide with each other.

While the present invention has been particularly shown and described with reference to particular embodiments thereof, it will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit of the invention, It will be apparent to those of ordinary skill in the art.

10: first rotating member 11: hollow member of first rotating member
12: protrusion 12a: inner surface of the protrusion
12b: outer surface of the protrusion 12c: upper surface of the protrusion
12d: lower surface of the protruding portion 12d: connecting groove of the protruding portion
13a: Upper slope portion of the projection portion 13b: Lower slope portion of the projection portion
L1 :The set length a1 of the projection : Thickness of protrusion
15: multi-plate clutch 20: second whole
21: Worm shaft 30: Worm wheel
31: spiral tooth of worm wheel 32: groove
40: worm wheel supporting body 41: first body
42: second body 42a: inner surface of the worm wheel supporting body
42b: Outer surface of the worm wheel supporting body 43: Body step
44: pin groove 44a: first pin groove
44b: second pin groove 50: rotation control device
51: engaging pin 51a: first diameter portion
51b: second diameter portion 52: frame
53: engaging pin insertion groove 54: roller
55: Spring 60 mounted on the coupling pin: one-way clutch
61: cutting portion 62: connecting surface
70: pin drive device 71: lift part
72: slope part of the lift part 73: cutting groove
L2: set length of lift part a2: set thickness of lift part

Claims (13)

A first rotating body rotating at a first rotating speed;
A second rotating body located at the other side of the first rotating body and having a worm shaft including spiral teeth around its outer surface and rotating at a second rotating speed;
A worm wheel having rotary lock portions formed at both ends thereof and meshing with the worm shaft of the second rotating body;
Wherein the first rotating body is slidable along the rotating shaft direction of the first rotating body and connected to rotate with the first rotating body so as to be symmetrical with respect to the axis of the second rotating body, A worm wheel supporting body including a bearing portion for supporting the first rotating body and a pressing portion for pressing the first rotating body as the first rotating body is slid relative to the first rotating body; And
And a locking engagement portion that is inserted into the bearing portion to be engaged with the rotation locking portion. When the rotation locking portion and the locking engagement portion are engaged, the rotation of the worm wheel is stopped so that the teeth of the worm wheel, The worm wheel and the worm wheel supporting body are moved in the direction of the first rotating body by rotating around the second rotating body so that the worm wheel and the worm wheel supporting body move in the direction of the first rotating body, A rotation control device which compresses and coincides the first rotation speed and the second rotation speed;
. The method according to claim 1,
The rotation locking portion and the locking coupling portion may be formed in a shape,
And the engaging pin is inserted into the groove and the groove by a set length, respectively. 3. The method of claim 2,
The rotation control device includes:
Further comprising a frame connecting the coupling pins,
Wherein the frame is formed along an axial direction of the worm wheel at a position above the worm wheel supporting body and includes engagement pin insertion grooves at both ends thereof to which the engagement pin is inserted. The method of claim 3,
Wherein the engaging pin includes a first diameter portion and a second diameter portion having a larger diameter than the first diameter portion, wherein the worm wheel supporting body is formed with a pin groove through which the engaging pin can pass, And a portion of the first diameter portion, and the remaining portion of the first diameter portion is exposed to the outside of the pin groove and inserted into the engagement pin insertion groove. 5. The method of claim 4,
Wherein a spring is provided in such a manner that a step is formed in the engagement pin according to a difference in diameter between the first diameter portion and the second diameter portion and the first diameter portion is sandwiched between the end portion of the pin groove and the stepped portion, When the pin moving device applies a lift motion to the frame, the engagement pin moves upward and the spring is pressed
And when the lift motion is not applied, the engagement pin is moved downward by an elastic force of the spring. 6. The method of claim 5,
The pinning mechanism includes:
And a lift portion formed at a position between the worm wheel and the frame and having a predetermined length, wherein the lift portion is slidable in one direction and the other direction,
When the lift unit moves in one direction, the lift unit slides to the lower side of the frame and lifts the frame by the predetermined length, and when the lift unit moves in the other direction, the frame is not brought into contact with the frame, . The method according to claim 6,
The frame includes:
And a roller is formed at a portion contacting the lift portion. The method according to claim 1,
Wherein the first rotating body includes:
Wherein the worm wheel support body includes a protrusion formed in a rectangular shape and having a predetermined thickness and a predetermined length in a symmetrical position with a predetermined interval, And the transmission is connected to the transmission. 9. The method of claim 8,
The worm wheel supporting body includes:
A first body and a second body having a smaller diameter than the first body, the body step being formed by a difference in diameter between the first body and the second body,
Wherein the body step is in contact with at least one surface of the upper surface or the lower surface of the protrusion and the outer surface of the second body is in contact with the inner surface of the protrusion and is slid and moved to the first rotating body. Including the transmission. 10. The method of claim 9,
The worm wheel supporting body includes:
And the second body is formed to include at least two sets of first bodies, each of the first bodies being spaced at least not less than the length between the upper and lower surfaces of the protrusions, and the second body connecting the first bodies. . 11. The method according to claim 9 or 10,
Wherein the bearing portion is formed to penetrate through the body step. The method according to claim 1,
The pressing portion is formed by elastic means,
Wherein when the worm wheel and the worm wheel supporting body move in the direction of the first rotating body to press the first rotating body, the pressing force can be gradually increased. 13. The method according to claim 1 or 12,
Wherein the first rotating body and the second rotating body are connected by a multi-plate clutch, and when the pressing portion presses the first body, the first rotating body and the second rotating body are connected through the multi-plate clutch.
KR1020160013035A 2016-02-02 2016-02-02 Rotation velocity synchronization device for transmission KR101728440B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1020160013035A KR101728440B1 (en) 2016-02-02 2016-02-02 Rotation velocity synchronization device for transmission

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1020160013035A KR101728440B1 (en) 2016-02-02 2016-02-02 Rotation velocity synchronization device for transmission

Publications (1)

Publication Number Publication Date
KR101728440B1 true KR101728440B1 (en) 2017-05-02

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ID=58742804

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1020160013035A KR101728440B1 (en) 2016-02-02 2016-02-02 Rotation velocity synchronization device for transmission

Country Status (1)

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