CN205468293U

CN205468293U - Heavily loaded travelling wheel is connected to polymer based composite dovetail

Info

Publication number: CN205468293U
Application number: CN201620026829.3U
Authority: CN
Inventors: 王慧荣
Original assignee: Yunnan Jubo Rubber Engineering Co ltd
Current assignee: Yunnan Jubo Rubber Engineering Co ltd
Priority date: 2016-01-13
Filing date: 2016-01-13
Publication date: 2016-08-17
Anticipated expiration: 2026-01-13

Abstract

The utility model provides a dovetail extremely that heavily loaded travelling wheel is connected to polymer based composite dovetail, wheel body be on the external diameter of inner core the fixed connection outer lane, the center of inner core is equipped with the shaft hole, fixed connection bearing in the shaft hole, the external diameter of inner core are connected the face and are gone up the short -staple that the equipartition has the evagination for connecting the face, the external diameter of inner core be step broad in the middle small in ends form from top to bottom, middle step department is equipped with has a perfect understanding from top to bottom. The utility model discloses a technology is advanced, reasonable in design, simple structure, the preparation of being convenient for. The utility model discloses an inner core need not machining, and labor - and time -saving easily realizes swift, batch production, and product quality is high, and the precision is good, and strong resistance to abrasion has high -speed heavy load, operates steadily, noise low grade function, can satisfy the heavy automatic transmission needs of high speed of high accuracy, is a heavily loaded travelling wheel is connected to polymer based composite dovetail.

Description

A kind of polymer composite dovetail groove connects heavy duty travelling wheel

Technical field

This utility model relates in a kind of automatization transmission equipment, and the travelling wheel that the equipment work of support runs, particularly a kind of polymer composite dovetail groove connects heavy duty travelling wheel.

Background technology

In automatization's transmission equipment, the travelling wheel that the work of support equipment runs carries the operation functions such as guiding, high-speed cruising, heavy duty, at present the production technology of travelling wheel is mainly its main mechanical component by metal iron core, again through finely machining turning, grinding machine polishing, surface sand-blasting processes, embedding, iron core binding agent brushing joined by bearing, machine fine processing etc. after the sulfuration of iron core outer ring coloring agent and cushion rubber, technological process is loaded down with trivial details, and production procedure time-consumingly long, individuation and the labor-intensive mode of production is obvious.Causing production efficiency low, manufacturing cost is high, and metal core practical efficiency is low, and waste is relatively big, and it is insecure that metal is combined with organic material.

Summary of the invention

The purpose of this utility model is to overcome existing pulley complex manufacturing technology, cost of manufacture is high, metal core practical efficiency is low, the unstable weak point that metal is combined with organic material, proposes the technical scheme of a kind of novel polymer composite high-speed overload travelling wheel.

Scheme of the present utility model is: a kind of polymer composite dovetail groove connects heavy duty travelling wheel, bearing it is provided with in axis hole, it is characterized in that, wheel body is fixing connection outer ring on the external diameter of inner core, and the center of inner core is provided with axis hole, and in axis hole, fixed connection shaft holds, the external diameter of inner core is joint face, being evenly equipped with the chopped fiber of evagination on joint face, the external diameter of inner core is upper and lower small in ends broad in the middle step-like, is provided with the dovetail groove at least 3 of up/down perforation at intermediate step.

Degree of depth h of described dovetail groove is less than or equal to 1/2nd of the wall thickness H of inner core, h≤H/2；The width d of dovetail groove orifice is less than or equal to width D 2 at the bottom of dovetail groove～8 millimeters, D=d+(2～8mm).

Described dovetail groove is 3～46.

The chopped fiber being evenly equipped with evagination on described joint face is: chopped fiber one end or part are fixedly connected in the material of inner core, another end or part expose to core surface, the staple length exposed is 0.1～0.5 millimeter, every square centimeter of chopped fiber exposed at least 40 on joint face.

On the external diameter of described inner core, the fixing outer ring that connects is: outer ring hot melt bonds with inner core.

The material of described inner core is engineering plastics；Described chopped fiber is staple fiber；The material of described outer ring is polyurethane elastomeric materials TPU.

This utility model is that the inner core to be made up of engineering plastics replaces metal inside, and intensity is good, and hardness is high, is unlikely to deform, and lightweight, and cost of manufacture is low.For improving the fastness that inner core is connected with outer ring, the joint face of this utility model inner core external diameter is evenly equipped with the chopped fiber of evagination, adds the roughness of joint face, when the outer ring of hot melt is combined with the contact surface of inner core, the chopped fiber of evagination will embed outer ring, make outer ring be connected firmly with inner core.For increasing the connection area of inner core and outer ring, strengthen both bonding strengths, this utility model is provided with multiple dovetail groove at the external diameter step broad in the middle of inner core, dovetail groove orifice handle is big, when in the dovetail groove that the macromolecule polyurethane elastomeric material of the hot melt of making outer ring wraps up inner core and enters inner core, can not deviate from from dovetail groove after condensation cured, be blocked by the polyurethane elastomeric materials of outer ring at dovetail groove upper and lower side, it is achieved two kinds of macromolecule unlike material strong bond.Inner core of the present utility model is that hardness is high, intensity is good, on-deformable engineering plastics, outer ring uses has high impact-resistant, high noise reduction pliable and tough, high, high abrasion, characteristic polyurethane elastomeric materials TPU of high property of reduction drag, two kinds of different organic materials firmly connect as one, and are made as a kind of composite material high-speed heavy duty travelling wheel with high rigidity, high abrasion, high resilience.Technique of the present utility model is advanced, reasonable in design, simple in construction, it is simple to make.Inner core of the present utility model is without machining, saving of work and time, it is easily achieved quick, batch production, and product quality is high, precision is good, and wearability is strong, have high-speed overload, operate steadily, the function such as noise is low, disclosure satisfy that automatization's transmission needs of high-precision high-speed overload, be that a kind of polymer composite dovetail groove connects heavy duty travelling wheel.

Accompanying drawing explanation

Fig. 1 is this utility model structural representation E-E sectional front view

Fig. 2 is this utility model structural representation F-F profile

Fig. 3 is this utility model partial enlargement structural representation A-A profile

Fig. 4 is this utility model dovetail groove partial enlargement structural representation

In figure: (1) be outer ring, (2) be joint face, (3) be inner core, (4) be bearing, (5) be axis hole, (6) circular arc chamfering, (7) be dovetail link slot, (8) be dovetail groove orifice, (9) be at the bottom of dovetail groove.

Detailed description of the invention

A kind of polymer composite dovetail groove connects heavy duty travelling wheel, wheel body is fixing connection outer ring (1) on the external diameter of inner core (3), the center of inner core is provided with axis hole (5), in axis hole, fixed connection shaft holds (4), the external diameter of inner core is joint face (2), the chopped fiber of evagination it is evenly equipped with on joint face, the external diameter of inner core is upper and lower small in ends broad in the middle step-like, the dovetail groove 12 of up/down perforation it is provided with at step broad in the middle, size according to wheel and the difference of loading capacity, can be designed as 3～46 by dovetail groove.Degree of depth h of described dovetail groove (7) is less than or equal to 1/2nd of the wall thickness H of inner core, h≤H/2；The width d of dovetail groove orifice (8) is 2～8 millimeters less than or equal to the width D at the bottom of dovetail groove, D=d+(2～8mm).The concrete size of dovetail groove can specific design as required.The chopped fiber being evenly equipped with evagination on described joint face (2) is: chopped fiber one end or part are fixedly connected in the material of inner core, another end or part expose to core surface, the staple length exposed is 0.1～1 millimeter, every square centimeter of chopped fiber exposed at least 40 on joint face.

Concrete preparation method is:

In the hard plastics of hot melt, add staple fiber, be molded into inner core (3), be firmly embedded in axis hole to position by rolling bearing (4) during injection and do not loosen, form the combined wheels mechanical structure part of high intensity；Making to be evenly equipped with on joint face (2) chopped fiber of evagination, chopped fiber one end or part to be fixedly connected in the material of inner core by distinctive method, another end or part expose to core surface.Wrap up the external diameter of inner core (3) by polyurethane elastomeric materials TPU of hot melt and enter each dovetail groove (8), the chopped fiber that the polyurethane elastomeric materials of hot melt exposes on inner core contact surface is combined, polyurethane elastomeric materials inner core external diameter and dovetail groove strong bonded after condensation cured, be not easy to separate under powerful External Force Acting.

It is 30～150mm that the polymer composite dovetail groove of the present embodiment connects heavy duty travelling wheel inner core outside dimension.The outside dimension 40～200mm of described outer ring.Gauge is 10～50mm.Described inner core (2) hardness is shore 50～85D.Described outer ring (4) hardness is shore 85～97A.

Claims

1. a polymer composite dovetail groove connects heavy duty travelling wheel, bearing it is provided with in axis hole, it is characterized in that, wheel body is fixing connection outer ring (1) on the external diameter of inner core (3), and the center of inner core is provided with axis hole (5), and in axis hole, fixed connection shaft holds (4), the external diameter of inner core is joint face (2), being evenly equipped with the chopped fiber of evagination on joint face, the external diameter of inner core is upper and lower small in ends broad in the middle step-like, is provided with the dovetail groove at least 3 of up/down perforation at intermediate step.

2. a kind of polymer composite dovetail groove as claimed in claim 1 connects heavy duty travelling wheel, it is characterised in that degree of depth h of described dovetail groove (7) is less than or equal to 1/2nd of the wall thickness H of inner core, h≤H/2；The width d of dovetail groove orifice (8) is less than or equal to width D 2 at the bottom of dovetail groove～8 millimeters, D=d+(2～8mm).

3. a kind of polymer composite dovetail groove as claimed in claim 1 connects heavy duty travelling wheel, it is characterised in that described dovetail groove (7) is 3～46.

4. a kind of polymer composite dovetail groove as claimed in claim 1 connects heavy duty travelling wheel, it is characterized in that, the chopped fiber being evenly equipped with evagination on described joint face (2) is: chopped fiber one end or part are fixedly connected in the material of inner core, another end or part expose to core surface, the staple length exposed is 0.1～0.5 millimeter, every square centimeter of chopped fiber exposed at least 40 on joint face.

5. a kind of polymer composite dovetail groove as claimed in claim 1 connects heavy duty travelling wheel, it is characterised in that on the external diameter of described inner core (3), the fixing outer ring (1) that connects is: outer ring hot melt bonds with inner core.

6. a kind of polymer composite dovetail groove as claimed in claim 1 connects heavy duty travelling wheel, it is characterised in that the material of described inner core (3) is engineering plastics；Described chopped fiber is staple fiber；The material of described outer ring is polyurethane elastomeric materials TPU.