CN207655859U - A kind of guide wheel core structure - Google Patents
A kind of guide wheel core structure Download PDFInfo
- Publication number
- CN207655859U CN207655859U CN201721807587.2U CN201721807587U CN207655859U CN 207655859 U CN207655859 U CN 207655859U CN 201721807587 U CN201721807587 U CN 201721807587U CN 207655859 U CN207655859 U CN 207655859U
- Authority
- CN
- China
- Prior art keywords
- guide wheel
- boss
- upper piece
- groove
- bottom sheet
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- Molds, Cores, And Manufacturing Methods Thereof (AREA)
Abstract
The utility model discloses a kind of guide wheel core structures, including upper piece and bottom sheet, it is described upper piece be fixedly connected with the bottom sheet, it is described upper piece with the bottom sheet be provided centrally with the forming hole to match, the forming hole is used to form the connecting hole at guide wheel center, it is described upper piece the edge of the bottom sheet is provided with the boss two being spaced apart to match and groove two, the boss two is used to form the inner wall of the guiding wheel side, the groove two is used to form the technique subsidy of the guide wheel side inner walls, upper piece the upper surface is provided with boss one, upper piece the gas vent is provided through on the boss one, upper piece the upper surface is additionally provided with the groove one for being used to form the guide wheel internal stiffeners, upper piece the bottom setting fluted three, the boss one is located at the surface of the groove three.A kind of guide wheel core structure of the utility model using the above structure can solve the problems, such as that core easily forms fire of choking in casting process.
Description
Technical field
The utility model is related to guide wheel casting technology fields, more particularly, to a kind of guide wheel core structure.
Background technology
Guide wheel is the important spare part on excavator, it play the guiding role to the movement of crawler of excavator.Guide wheel
Production mostly uses the mode of sand casting, and the inside of guide wheel is hollow structure, so needing to rely on core in casting process
Form the internal cavities of guide wheel.The molding of core is bonded by binder by molding sand, the binder in casting process
A large amount of gas can be generated under molten metal high temperature action, if gas cannot be discharged from cavity in time, effectively, easily
Formation is choked fire, the surface of casting and it is internal form a large amount of stomata and sand holes, influence the quality of casting.
Utility model content
The purpose of this utility model is to provide a kind of guide wheel core structure, and solving core, easily formation is choked in casting process
The problem of fire.
To achieve the above object, the utility model provides a kind of guide wheel core structure, including upper piece and bottom sheet, described
Upper piece be fixedly connected with the bottom sheet, it is described upper piece with the bottom sheet be provided centrally with the forming hole to match, the molding
Hole is used to form the connecting hole at guide wheel center, it is described upper piece being spaced apart of matching is provided with the edge of the bottom sheet
Boss two and groove two, the boss two are used to form the inner wall of the guiding wheel side, and the groove two is used to form described
The technique of guide wheel side inner walls is subsidized, and upper piece the upper surface is provided with boss one, is provided through on the boss one
Upper piece the gas vent, upper piece the upper surface are additionally provided with the groove for being used to form the guide wheel internal stiffeners
One, upper piece the bottom setting fluted three, the boss one is located at the surface of the groove three.
Preferably, the groove one is radially distributed centered on the forming hole, and the number of the groove one is 4
It is a.
Preferably, the shape of the boss one is truncated cone-shaped, and the number of the boss one is 4, and the boss one surrounds
The forming hole is in upper piece the upper surface circumferentially array distribution.
Preferably, the number of the groove three is 4, and the groove three is around the forming hole in upper piece the bottom
Circumferentially array distribution.
Preferably, the height of the boss one is more than the thickness of the guide wheel upper surface.
Therefore, a kind of guide wheel core structure described in the utility model, upper bottom be arranged groove three, upper piece top
Gas vent is provided on the boss in portion, groove three is connected to by gas vent with boss, is inserted into exhaust pipe on gas vent, type when cast
The gas that core generates can be discharged to by gas vent and exhaust pipe except sand mold, avoided core from being generated in casting process and choked
Fire improves the quality of guide wheel casting.
Below by drawings and examples, the technical solution of the utility model is described in further detail.
Description of the drawings
Fig. 1 is a kind of structural schematic diagram of guide wheel core structure embodiment of the utility model；
Fig. 2 is a kind of upper piece bottom substance schematic diagram of guide wheel core structure embodiment of the utility model；
Reference numeral
1, upper piece；2, bottom sheet；3, groove one；4, boss one；5, boss two；6, groove two；7, groove three；8, gas vent；
9, forming hole.
Specific implementation mode
Embodiment
Fig. 1 is a kind of structural schematic diagram of guide wheel core structure embodiment of the utility model, and Fig. 2 is the utility model one
Upper piece bottom substance schematic diagram of kind of guide wheel core structure embodiment.As shown in Figure 1 and Figure 2, a kind of guide wheel core structure,
Including upper piece 1 and bottom sheet 2, upper piece 1 be fabricated separately with bottom sheet 2, be then fixed together by adhesive bond.Upper piece 1
Be provided centrally with the through-hole to match with bottom sheet 2, upper piece 1 combine to form forming hole with latter two through-hole that is adhesively fixed of bottom sheet 2
9, forming hole 9 is used to form the connecting hole at guide wheel center.Upper piece 1 the interval point to match is both provided with the edge of bottom sheet 2
The boss and groove of cloth, after fitting upper piece 1 be combined into boss 25 and groove 26 with the boss at 2 edge of bottom sheet and groove, it is convex
Platform 25 is used to form the inner wall of guiding wheel side, and groove 26 is used to form the technique subsidy that guide wheel is picked up the ears on inner wall.Technique
Subsidy can carry out feeding to the side of guide wheel, eliminate the casting flaws such as shrinkage cavity and porosity, the slag inclusion of side, improve side
Dense structure's property.
Upper piece 1 upper surface on be provided with one 3,4 grooves 1 of radially distributed groove centered on forming hole 9
It is evenly distributed in piece 1 upper surface, cast rearward recess 1 can form the reinforcing rib inside guide wheel.Upper piece 1 upper table
Face be provided with one 4,4 boss 1 of boss of truncated cone-shaped around forming hole 9 the circumferentially array distribution on upper 1 upper surface,
The height of boss 1 is greater than the wall thickness of guide wheel upper surface.The effect of boss 1 is used to form on guide wheel upper surface
Clearance hole, core can be discharged from clearance hole after casting complete；Another effect of boss 1 is for fixing core, preventing
Only core, which floats, causes the problem of casting accuracy difference.Piece 1 gas vent 8 is provided through on boss 1, gas vent 8 is used for
The gas of discharge type core inner.Upper piece 1 bottom be provided with 37,4 grooves 37 of groove corresponding with boss 1 around molding
Upper 1 bottom, circumferentially array distribution, boss 1 are located at the surface of groove 37 in hole 9.Groove 37 is logical with boss 1
Cross the connection of gas vent 8, when cast is plugged with exhaust pipe on gas vent 8, and core is heated the gas released in casting process
It can be discharged to except sandbox by groove 37, gas vent 8, exhaust pipe, core is avoided to form fire of choking.
Bottom sheet 2 with upper piece 1 structure it is roughly the same, the difference is that the row of being not provided on boss on 2 surface of bottom sheet
Stomata 8.
Therefore, a kind of guide wheel core structure of the utility model using the above structure, can solve core and pour into a mould
The problem for fire of choking easily is formed in journey.
It is specific embodiment of the present utility model above, but the scope of protection of the utility model should not be limited to thoses mentioned above.Appoint
What those skilled in the art is in the technical scope disclosed by the utility model, the change or replacement that can be readily occurred in,
It should be covered within the scope of the utility model, therefore the scope of protection of the utility model should be limited with claims
Subject to fixed protection domain.
Claims (5)
1. a kind of guide wheel core structure, it is characterised in that：Including upper piece and bottom sheet, it is described upper piece fix and connect with the bottom sheet
Connect, it is described upper piece with the bottom sheet be provided centrally with the forming hole to match, the forming hole is used to form guide wheel center
Connecting hole, it is described upper piece the edge of the bottom sheet is provided with the boss two being spaced apart to match and groove two, it is described
Boss two is used to form the inner wall of the guiding wheel side, the technique that the groove two is used to form the guide wheel side inner walls
Subsidy, upper piece the upper surface is provided with boss one, upper piece the gas vent is provided through on the boss one, described
Upper piece upper surface is additionally provided with the groove one for being used to form the guide wheel internal stiffeners, and upper piece the bottom is provided with
Groove three, the boss one are located at the surface of the groove three.
2. a kind of guide wheel core structure according to claim 1, it is characterised in that：The groove one is with the forming hole
Centered on be radially distributed, the number of the groove one is 4.
3. a kind of guide wheel core structure according to claim 1, it is characterised in that：The shape of the boss one is round platform
Shape, the number of the boss one are 4, and the boss one is around the forming hole in upper piece the upper surface circumferentially array
Distribution.
4. a kind of guide wheel core structure according to claim 1, it is characterised in that：The number of the groove three is 4,
The groove three is around the forming hole in upper piece the bottom circumferentially array distribution.
5. a kind of guide wheel core structure according to claim 1, it is characterised in that：The height of the boss one is more than institute
State the thickness of guide wheel upper surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721807587.2U CN207655859U (en) | 2017-12-21 | 2017-12-21 | A kind of guide wheel core structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721807587.2U CN207655859U (en) | 2017-12-21 | 2017-12-21 | A kind of guide wheel core structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207655859U true CN207655859U (en) | 2018-07-27 |
Family
ID=62941981
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721807587.2U Expired - Fee Related CN207655859U (en) | 2017-12-21 | 2017-12-21 | A kind of guide wheel core structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207655859U (en) |
-
2017
- 2017-12-21 CN CN201721807587.2U patent/CN207655859U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180727 Termination date: 20201221 |