CN209345441U - A kind of guide wheel group and guidance set - Google Patents

Abstract

The utility model relates to guiding device, a kind of guide wheel group and guidance set are disclosed.Guide wheel group includes wheel carrier, wheel shaft, directive wheel, the wheel carrier is equipped with card slot, the wheel shaft is equipped with groove, and the wheel shaft passes through the groove and the card slot cooperates, to limit rotation and the wheel shaft moving along its axial direction of the wheel shaft relative to the wheel carrier；The directive wheel and the wheel shaft clearance fit.This guide wheel group is avoided using bearing, will not be corroded because bearing seal is bad, be caused wheel shaft stuck.Guidance set includes base and by guide part, further includes guide pad and above-mentioned guide wheel group；The guide wheel group is fixedly connected by the wheel carrier with the base, and the guide pad is fixedly connected with described by guide part, and the guide pad is located in the circumferential slot, can be mobile relative to base.This guidance set is avoided due to bearing corrosion and there is a phenomenon where stuck.

Description

A kind of guide wheel group and guidance set

Technical field

The utility model relates to a kind of guiding device, especially a kind of guide wheel group, and leading using the guide wheel group To component.

Background technique

During PCB manufacture produces heavy process for copper, rocking carrier is placed on above directive wheel, and rocking carrier is sliding on leading wheel It is dynamic, so that winged bar of drive and Hanging Basket move in liquid medicine tank, accelerate the mobility above liquid medicine assist side.Previous guiding Wheel design when, between directive wheel and guiding axis using bearing connect, when because of poor sealing, bearing get rusty easily it is stuck, very Can extremely rocking carrier be made to wear.

Utility model content

For overcome the deficiencies in the prior art, the utility model provides a kind of guide wheel group, with solve existing directive wheel with Bearing between guiding axis gets rusty easily stuck, the problem of causing rocking carrier to wear.

The utility model also provides a kind of guidance set, to solve the problems, such as that guidance set is stuck due to bearing rust.

The technical scheme adopted by the utility model to solve the technical problem is as follows:

A kind of guide wheel group, including wheel carrier, wheel shaft, directive wheel, the wheel carrier are equipped with card slot, which is characterized in that described Wheel shaft is equipped with groove, and the wheel shaft is cooperated by the groove and the card slot, to limit the relatively described wheel carrier of the wheel shaft Rotation and the wheel shaft axial being moved along it；The directive wheel and the wheel shaft clearance fit.

The groove is located at the end of the wheel shaft as a further improvement of the utility model, and the groove is vertical In the section of axis be arch.

There are two the grooves at the both ends of the wheel shaft as a further improvement of the utility model, and described in two The axis of the relatively described wheel shaft of groove is centrosymmetric.

The material of the directive wheel is polyvinylidene fluoride as a further improvement of the utility model,.

The periphery of the directive wheel is equipped with circumferential slot as a further improvement of the utility model,.

A kind of guidance set, including base and by guide part, further include guide pad and above-mentioned guide wheel group；The guiding Wheel group is fixedly connected by the wheel carrier with the base, and the guide pad is fixedly connected with described by guide part, the guiding Block and the circumferential slot cooperate, so that described can be mobile relative to the directive wheel by guide part.

The guide pad includes bottom as a further improvement of the utility model, the bottom and the directive wheel Circumferential slot contact, the bottom along the guide wheel shaft to width be less than the directive wheel circumferential groove width, the bottom Height be greater than the directive wheel circumferential groove depth.

The guide pad further includes top as a further improvement of the utility model, and the top is located at the bottom Top, the top and the bottom be affixed, the top along the guide wheel shaft to width be greater than the directive wheel The width of circumferential slot.

The guide pad is fixed by screws in the bottom by guide part as a further improvement of the utility model, Portion.

The guide pad is weldingly fixed on the bottom by guide part as a further improvement of the utility model,.

The beneficial effects of the utility model are:

The wheel shaft of this guide wheel group is placed in the card slot of wheel carrier, will not be relatively rotated with respect to card slot or be moved relatively It is dynamic；It is gap-matched between directive wheel and wheel shaft, can relatively rotate between the two, eliminate bearing, therefore will not be because For bearing seal is bad and corrodes, cause wheel shaft stuck.

Detailed description of the invention

The present invention will be further described with reference to the accompanying drawings and examples.

Fig. 1 is the stereoscopic schematic diagram of the utility model embodiment；

Fig. 2 is the front view of Fig. 1 embodiment；

Fig. 3 is the stereoscopic schematic diagram of wheel shaft in Fig. 1 embodiment；

Specific embodiment

It is carried out below with reference to technical effect of the embodiment and attached drawing to the design of the utility model, specific structure and generation Clear, complete description, to be completely understood by the purpose of this utility model, scheme and effect.It should be noted that not conflicting In the case where, the features in the embodiments and the embodiments of the present application can be combined with each other.

It should be noted that unless otherwise specified, when a certain feature referred to as " fixation ", " connection " are in another feature, It can directly fix, be connected to another feature, and can also fix, be connected to another feature indirectly.In addition, this " being fixedly connected " used in utility model includes the non-movable connection type such as welding, cementing, also includes bolt, screw Etc. dismountable connection type.The descriptions such as up, down, left, right, before and after used in the utility model are only relative to attached In figure for the mutual alignment relation of each component part of the utility model.

In addition, unless otherwise defined, the technology of all technical and scientific terms used herein and the art The normally understood meaning of personnel is identical.Term used in the description is intended merely to description specific embodiment herein, without It is to limit the utility model.Term " and or " used herein includes appointing for one or more relevant listed items The combination of meaning.

Referring to Fig.1, the schematic diagram of the utility model one embodiment is shown, which includes wheel carrier 1, directive wheel 2, wheel shaft 3 and guide pad 4.Wheel carrier 1 includes bottom and two side walls, is equipped with waist-shaped hole in front and rear direction on bottom, the waist type Hole is used for across bolt, and wheel carrier 1 is connect by bolt with base (not shown).It certainly can also be with for connecting the hole of bolt It is circular hole, rectangular opening etc..Wheel carrier side wall is located at the two sides of bottom, is machined with card slot on its top.

Referring to figure 3., the diameter of wheel shaft 3 is less than the depth of wheel carrier card slot, is equipped with opposite axle axis at its both ends and is in Centrosymmetric groove, groove include the bottom surface for being parallel to axis and two sides perpendicular to axis.The groove is in vertical wheel axis 3 The section of axis direction is arch.The side of the card slot of groove floor and wheel carrier is engaged, between two bottom portion of groove planes Distance is substantially equal to the distance between card slot two sides, so that wheel shaft 3 will not rotate with respect to wheel carrier 1.The two sides of groove The distance between it is more slightly larger than the thickness of wheel carrier side wall, therefore wheel shaft is fixed in axially opposing wheel carrier.

In addition, the number of recesses at 3 both ends of wheel shaft is also possible to one, corresponding bottom portion of groove plane and 3 arc surface of wheel shaft Between maximum distance be substantially equal to the distance between wheel carrier card slot two sides.

Directive wheel 2 is revolution body mechanism, runs through the through-hole of bottom surface on wheel body along axis with one, and wheel shaft 2 is logical with this Clearance fit between hole, directive wheel 2 can be relatively rotated with respect to wheel shaft 3.The direction of the periphery of directive wheel 2 is equipped with a circumferential direction Slot.The material of directive wheel is material wear-resisting, anti-corrosion, resistant to high temperature, the preferred polyvinylidene fluoride of the present embodiment.

Fig. 1, Fig. 2 are please referred to, guide pad 4 includes bottom and top, and bottom and top are rectangular parallelepiped structure, and the two is affixed Or it is integrally formed.Bottom is contacted with directive wheel circumferential slot, bottom along the guide wheel shaft to width be less than the directive wheel Circumferential groove width, the height of bottom is greater than the circumferential groove depth of directive wheel.

Top along guide wheel shaft to width be greater than the directive wheel circumferential slot width, the pedestal at top and rocking carrier It is fixedly connected by welding, so that rocking carrier can be slided with guide pad together opposite wheel carrier.In addition it is also possible in guide pad Top offers threaded hole or through-hole, makes to be connected by screw between guide pad and rocking carrier；Rocking carrier is also possible to other Need to be directed to by guide part.

It is illustrating for progress to be implemented to the preferable of the utility model, but the invention is not limited to the reality above Example is applied, those skilled in the art can also make various equivalent variations without departing from the spirit of the present invention Or replacement, these equivalent deformations or replacement are all included in the scope defined by the claims of the present application.

Claims (10)

1. a kind of guide wheel group, including wheel carrier, wheel shaft, directive wheel, the wheel carrier is equipped with card slot, which is characterized in that the wheel Axis is equipped with groove, and the wheel shaft is cooperated by the groove and the card slot, to limit the relatively described wheel carrier of the wheel shaft Rotation and the wheel shaft moving along its axial direction；The directive wheel and the wheel shaft clearance fit.

2. guide wheel group according to claim 1, which is characterized in that the groove is located at the end of the wheel shaft, described Groove is arch in the section perpendicular to axis.

3. guide wheel group according to claim 2, which is characterized in that the groove there are two the both ends of the wheel shaft are equal, And the axis of the relatively described wheel shaft of two grooves is centrosymmetric.

4. guide wheel group according to claim 1, which is characterized in that the material of the directive wheel is polyvinylidene fluoride.

5. guide wheel group according to any one of claim 1 to 4, which is characterized in that on the periphery of the directive wheel Equipped with circumferential slot.

6. a kind of guidance set, including base and by guide part, which is characterized in that it further include described in guide pad and claim 5 Guide wheel group；The guide wheel group is fixedly connected by the wheel carrier with the base, and the guide pad is directed to described Part is fixedly connected, and the guide pad and the circumferential slot cooperate, so that described can be mobile relative to the directive wheel by guide part.

7. guidance set according to claim 6, which is characterized in that the guide pad includes bottom, the bottom and institute State directive wheel circumferential slot contact, the bottom along the guide wheel shaft to width be less than the directive wheel circumferential groove width Degree, the height of the bottom are greater than the circumferential groove depth of the directive wheel.

8. guidance set according to claim 7, which is characterized in that the guide pad further includes top, the top position In the top of the bottom, the top and the bottom are affixed, the top along the guide wheel shaft to width be greater than institute State the width of the circumferential slot of directive wheel.

9. according to the described in any item guidance sets of claim 6 to 8, which is characterized in that the guide pad is fixed by screw In the bottom by guide part.

10. according to the described in any item guidance sets of claim 6 to 8, which is characterized in that the guide pad is weldingly fixed on institute It states by the bottom of guide part.