CN201382107Y

CN201382107Y - Shaft transmission device

Info

Publication number: CN201382107Y
Application number: CN200920065158U
Authority: CN
Inventors: 黄亮
Original assignee: Individual
Current assignee: Individual
Priority date: 2009-04-28
Filing date: 2009-04-28
Publication date: 2010-01-13
Anticipated expiration: 2019-04-28

Abstract

The utility model discloses a shaft transmission device which comprises a drive part and a driven part, wherein the drive top of the drive part is meshed with the driven top of the driven part, the meshing surface of the drive top and the driven top is composed of a V-shaped surface and axial surfaces along both sides of the V-shaped surface. As the meshing surface of the drive top and the driven top of the drive part and the driven part is additionally provided with axial surfaces on the basis of V-shaped surface in prior art, the axial force applied on bearing is effectively reduced through the transmission between the drive part and the driven part, the abrasion of transmission contact surface is reduced and the transmission capacity is improved, the driven part is also prevented from tripping. Besides, the shaft transmission device needs small starting moment and is applicable to low speed starting of variable-frequency motor and facilitates protecting motor; when the shaft transmission device is assembled on brake, the brake moment range is increased; the shaft transmission device is also applicable to shaft transmission of other machines.

Description

The axle transmission device

Technical field

The utility model relates to the axle transmission device of a kind of moving object.

Background technique

Axle is mainly used in the machinery with transmission device, and most typical is to be used for break, and the axle in the existing break is used transmission device, comprises driving link and driven member, and driving link comprises the active spline housing and the active top on the V-arrangement inclined-plane of protrusion is arranged; Driven member comprises driven spline housing and the driven top (as shown in Figure 5) that can be meshed with the active top.The power of break is to pass to initiatively by the active spline housing of active splined shaft and driving link to push up, during startup, initiatively the V-arrangement inclined-plane on top rotates and produces the axially movable while relative to the V-arrangement inclined-plane on driven top, driving link drives roof pressure dish compression brake spring, thereby brake off, institute of limited mechanism is spacing after the roof pressure dish moves a segment distance with driving link, act on the brake spring pressure on the roof pressure dish this moment, act on the active torque of initiatively pushing up, driven top V-arrangement ramp effect reaches balance in the frictional force on the V-arrangement inclined-plane, active top on the axial direction that initiatively pushes up, main, nothing relatively moves between the driven member, thereby has realized the transfer function of power.This axle by the transmission of V-arrangement inclined-plane, and needs to use that position-limit mechanism is spacing prevents that driven top from deviating from transmission device.The axial force that bearing bore is big, during transmission the wearing and tearing on inclined-plane bigger, transmission capacity is low.

The model utility content

The purpose of this utility model is to provide a kind of axle transmission device little, that transmission capacity needs position-limit mechanism by force and not that weares and teares.

This axle of the present utility model comprises driving link and driven member with transmission device, described driving link initiatively pushes up with the driven top of driven member by it and is meshed, and the Surface of action on described active top and driven top is made up of V-arrangement face and this V-arrangement face both sides axial plane vertically.

Because the initiatively top of driving link of the present utility model and driven member and the Surface of action between driven top are to have increased axial plane on the basis of existing V-arrangement face, the axial force that makes transmission between driving link and the driven member effectively reduce bearing to be born, reduced the transmission contact surface abrasion, strengthen transmission capacity, and can prevent the disengaging of driven member.The required starting torque of the utility model is less in addition, is more suitable for the low speed start of variable-frequency motor, helps protecting motor, can make detent torque range bigger in the time of on being used for break, and the axle that the utility model is used for other machinery also is fit to transmission.

Description of drawings

Fig. 1 is the structural representation of axle of the present utility model with transmission device.

Fig. 2 is the structural representation of the utility model driving link right elevation.

Fig. 3 is the structural representation of the utility model driven member left view.

Fig. 4 is the schematic representation that the utility model is used for inertia brake.

Fig. 5 is the unit for shaft in the present break.

Mode of execution

From Fig. 1-Fig. 3 as can be seen, this axle of the present utility model comprises driving link 1 and driven member 2 with transmission device, and driving link 1 comprises active spline housing 11 and initiatively pushes up 12; Driven member 2 comprise driven spline housing 21 and can with initiatively push up the 12 driven tops 22 that are meshed.Initiatively pushing up 12 all is to be formed by the axial plane 3 that stretch out vertically on V-arrangement face 4 and these V-arrangement face both sides with the Surface of action on driven top 22.Drive in the process of driven member 2 at driving link 1, initiatively push up 12 with the Surface of action on driven top 22 in axially the 3 pairs of transmission that increase radial force in plane play an important role, can not only increase transmission efficiency and reduce starting torque, can also guarantee that the transmission between them does not break away from, be fit to the axle transmission in the common mechanical.

Fig. 4 is the schematic representation that the utility model is used for inertia brake, as can be seen from the figure, behind electric motor starting, moment of torsion is connected the overcoat 7 that transmission is given driving link 1 and joined with driving link 1 by the spline between the active spline housing 11 of active splined shaft 5 and driving link 1, make overcoat 7 rotations, since the effect of load inertial force make initiatively push up 11 and the V-arrangement face 4 of driven top 21 Surface of action between produce interaction force, make it to produce slide relative, driven member 2 moves right, thereby driving platen 9 moves to right, braking is secondary throws off, spring 6 compressions, and braking is removed.When driven top 2 initiatively pushes up 1 when sliding into the terminal point of V-arrangement face 4 relatively, axial plane 3 parts that link to each other with V-arrangement face 4 engagement on driving and driven top, because the frictional force of axial plane 3 can not be separated the transmission of master and slave moving part, moment of torsion passes to driven member 2 by axial plane 3 and the V-arrangement face 4 that driving and driven top is meshed, by splined moment of torsion is passed to driven spline shaft 8 then, pass to the speed reducer that joins with it by driven spline shaft 8 again, thereby finish the process of moment of torsion transmission and braking releasing.After motor was shut down, motor no longer included moment of torsion output, and the interaction force that the V-arrangement face on driving and driven top is 4 disappears, and the elastic force of spring 6 moves to left driven member 2, and braking is secondary fits, and braking realizes.

Claims

1, uses transmission device for a kind of, comprise driving link (1) and driven member (2), described driving link initiatively pushes up (12) by it and is meshed with the driven top (22) of driven member (2), it is characterized in that the Surface of action on described active top (12) and driven top (22) is made up of V-arrangement face (4) and this V-arrangement face (4) both sides axial plane (3) vertically.