CN208131691U

CN208131691U - pulling wheel core

Info

Publication number: CN208131691U
Application number: CN201820672357.8U
Authority: CN
Inventors: 程海
Original assignee: Individual
Current assignee: Individual
Priority date: 2018-05-07
Filing date: 2018-05-07
Publication date: 2018-11-23
Anticipated expiration: 2028-05-07

Abstract

A kind of pulling wheel core, including：Core ontology, axial to have through-hole, the output shaft cooperation of the core ontology and wire drawing machine, the inner sidewall of through-hole is at least two convex ribs being oppositely arranged.The utility model is by being oppositely arranged at least two convex ribs in inner side wall of through hole, there is keyway corresponding at least two convex ribs above output shaft on wire drawing machine, keyway and convex ribs engaging, the core ontology and output shaft of pulling wheel are fixedly combined together, are easy to use.

Description

Pulling wheel core

Technical field

The utility model relates to mechanical equipment more particularly to a kind of pulling wheel cores.

Background technique

Currently, the pulling wheel core used on the market is the core with cross keyway, the output main shaft of electric tool There are at least two keyways, core is nested together with the output main shaft on electric tool, the keyway of core and the keyway of output main shaft Corresponding, core and output main shaft are fixed in two metallic bond insertions.Defect of the existing technology is：(1) metallic bond and product It separates, be inconvenient to install in use and be easily lost with electric tool；(2) between metallic bond and plastic core and main shaft Gap is bigger, and when use be easy to cause bigger shake；(3) to the abrasion of plastics and bigger, increase makes metallic bond The security risk of used time.

Utility model content

The utility model for overcome the deficiencies in the prior art, provides a kind of installation safe and convenient, saves the wire drawing of cost Take turns core.

To achieve the goals above, the utility model uses following technical scheme：Pulling wheel core, including：Core ontology, Axially there is through-hole, the output shaft cooperation of the core ontology and wire drawing machine, there are the inner sidewall of through-hole at least two to set relatively The convex ribs set.

In an embodiment of the utility model, the convex ribs are two, and two convex ribs are symmetrical, each convex ribs both ends End and the distance between the end face of core ontology be 10m-20mm.

In an embodiment of the utility model, the end of each convex ribs is equipped with guide surface.

In an embodiment of the utility model, the end face of the core ontology has convex corresponding with convex ribs It rises.

In an embodiment of the utility model, there are multiple raised lines on the outer circumference surface of the core ontology, it is multiple convex Item is evenly distributed.

In an embodiment of the utility model, the outer circumference surface of the core ontology is equipped with close to core ontology endface Groove, circumferential direction setting of the groove along core ontology.

In conclusion the utility model has the beneficial effects that：The utility model structure is simple, installation safe and convenient, saves The effect of cost.The utility model is by being oppositely arranged at least two convex ribs in inner side wall of through hole, on the output shaft on wire drawing machine Face has keyway corresponding at least two convex ribs, keyway and convex ribs engaging, and the core ontology and output shaft of pulling wheel are firm Ground is combined together, and is easy to use.

In addition, two convex ribs of setting, save production cost, two symmetrical settings of convex ribs can make core ontology and draw The connection of output shaft on silk machine is more stable；Since the keyway on the main shaft of wire drawing machine cannot be worked into bottom completely, so The both ends of plastic core are retracted 10mm-20mm；Guide surface is set；Positioning protrusion facilitates the position of identification core ontology inner convex rib, side Just it installs；Multiple raised lines are arranged in the surface of core ontology, can increase the frictional force on surface, prevent skidding when installation； The setting of groove be discharge for convenience during installation or the dust that generates of when use.

For above and other objects, features and advantages of the utility model can be clearer and more comprehensible, preferable reality is cited below particularly Example is applied, and cooperates attached drawing, is described in detail below.

Detailed description of the invention

Fig. 1 is the output shaft structural schematic diagram of wire drawing machine；

Fig. 2 is the sectional view of wire drawing machine output shaft；

Fig. 3 is the structural schematic diagram of an embodiment of the present invention；

Fig. 4 is the section view figure structure schematic representation in the face Fig. 3 A-A；

Fig. 5 is the structural schematic diagram of another embodiment of the utility model；

Fig. 6 is the section view figure structure schematic representation in the face Fig. 5 B-B；

Specific embodiment

Combined with specific embodiments below, and in conjunction with attached drawing, the technical solution of utility model is further described：Such as figure 1 to shown in Fig. 4, a kind of pulling wheel core, including：Core ontology 1, it is axial that there is through-hole 11, the core ontology 1 and wire drawing machine Output shaft 100 cooperate, the inner sidewall of through-hole 11 has at least two convex ribs 12 being oppositely arranged.By in 11 inner sidewall of through-hole At least two convex ribs 12 are oppositely arranged, the output shaft 100 on wire drawing machine has keyway corresponding at least two convex ribs above 101, keyway 101 and convex ribs 12 engage, and the core ontology 1 and output shaft 100 of pulling wheel are fixedly combined together, conveniently make With.In the present embodiment, without limitation, the number of convex ribs can be according to key on output shaft 100 for number and specific location to convex ribs Depending on the number situation of slot 101；In addition, the position of convex ribs 12 is oppositely arranged between two convex ribs if really bar number is two. Preferably, core ontology 1 is cylinder, the circular in cross-section of through-hole 11.However, the use of the new type is not construed as limiting this.This In embodiment, core ontology 1 is suitable for larger-size pulling wheel.In other embodiments, as shown in Figure 5 to Figure 6, core sheet Body 1 is suitable for the lesser pulling wheel of size.

In this present embodiment, the convex ribs 12 are two, and two convex ribs are symmetrical, due to the key on the main shaft of wire drawing machine Slot cannot be worked into bottom completely, and the end at each 12 both ends of convex ribs and the distance between the end face of core ontology 1 are 10m- 20mm.Preferably, 12 end of convex ribs is 15mm at a distance from the end face of core ontology 1.Two convex ribs 12 are set, production is saved Cost, two symmetrical settings of convex ribs 12, can make core ontology 1 and the connection of the output shaft 100 on wire drawing machine more stable.

In this present embodiment, for the ease of installation, the end of each convex ribs 12 is equipped with guide surface 121.Guide surface 121 Specific structure without limitation, can be the slope angled with 12 end of convex ribs, be also possible to 12 end of convex ribs and through-hole It is in the arc surface of arc transition between 11 inner sidewalls.

In this present embodiment, the position for identifying core ontology inner convex rib for convenience, facilitates installation, in the core ontology 1 end face has positioning protrusion 13 corresponding with convex ribs 12.Preferably, in the end face of core ontology 1, the edge of through-hole 12 Positioning protrusion 13 is set, and the shape of positioning protrusion 13 is not construed as limiting.Positioning protrusion 13 and 11 inner convex rib 12 of through-hole correspond, When installation, the engaging corresponding with the keyway on output shaft 100 of the position of positioning protrusion 13 can install both quick and accurately in this way.

In this present embodiment, there are multiple raised lines 14, multiple raised lines 14 are uniformly arranged on the outer circumference surface of the core ontology 1 Column.The setting of raised line can increase the frictional force on 1 surface of core ontology, meanwhile, the raised line being uniformly arranged is more beautiful.This is practical The novel length to raised line 14 is not construed as limiting, it is preferred that one end of raised line 14 and one end end face of core ontology 1 are risen and put down, another End and the end face of 1 other end of core ontology have one end distance.

In this present embodiment, the outer circumference surface of the core ontology 1 is equipped with groove 15 close to core ontology endface, described Circumferential direction setting of the groove 15 along core ontology 1.Groove 15 is in the edge of 1 outer circumference surface of core ontology, with appointing for core ontology 1 The end face of meaning one end is adjacent.Discharge is during installation or the dust that generates of when use for convenience for the setting of groove 15.Preferably, this reality It is plane with novel 15 bottom surface of groove.

In conclusion the utility model structure is simple, the effect of cost is saved in installation safe and convenient.The utility model is logical It crosses and is oppositely arranged at least two convex ribs in inner side wall of through hole, have above the output shaft on wire drawing machine opposite at least two convex ribs The keyway answered, keyway and convex ribs engaging, the core ontology and output shaft of pulling wheel are fixedly combined together, are easy to use.

Although the utility model is disclosed above by preferred embodiment, it is not intended to limit the utility model, it is any This known those skilled in the art can make some changes and embellishment without departing from the spirit and scope of the utility model, therefore this is practical Novel protection scope is subject to view claims range claimed.

Claims

1. a kind of pulling wheel core, which is characterized in that including：

Core ontology, axial to have through-hole, the output shaft cooperation of the core ontology and wire drawing machine, the inner sidewall of through-hole is with extremely Few two convex ribs being oppositely arranged.

2. pulling wheel core according to claim 1, which is characterized in that the convex ribs are two, and two convex ribs are mutually right Claim, the end at each convex ribs both ends and the distance between the end face of core ontology are 10m-20mm.

3. pulling wheel core according to claim 1, which is characterized in that the end of each convex ribs is equipped with guide surface.

4. pulling wheel core according to claim 1, which is characterized in that the end face of the core ontology has and convex ribs phase Corresponding positioning protrusion.

5. pulling wheel core according to claim 1, which is characterized in that have on the outer circumference surface of the core ontology more A raised line, multiple raised lines are evenly distributed.

6. pulling wheel core according to claim 1, which is characterized in that the outer circumference surface of the core ontology is close to core Ontology endface is equipped with groove, circumferential direction setting of the groove along core ontology.