CN208068825U - Wear resistant corrosion resistant type screw rod - Google Patents
Wear resistant corrosion resistant type screw rod Download PDFInfo
- Publication number
- CN208068825U CN208068825U CN201820245887.4U CN201820245887U CN208068825U CN 208068825 U CN208068825 U CN 208068825U CN 201820245887 U CN201820245887 U CN 201820245887U CN 208068825 U CN208068825 U CN 208068825U
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- CN
- China
- Prior art keywords
- rod
- spiral shell
- helicitic texture
- shell rib
- outer diameter
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- 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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- Extrusion Moulding Of Plastics Or The Like (AREA)
Abstract
The utility model is related to a kind of wear resistant corrosion resistant type screw rods, first step portion connects aforementioned shank, third stage portion is recessed with helical groove, the right side of the body of rod connects third stage portion, the body of rod is equipped with the first helicitic texture, the second helicitic texture and oblique slot structure, the body of rod, the first helicitic texture, the second helicitic texture and oblique slot structure surface be equipped with carbide layers and Ni-Al alloy coating successively from outside to inside；First screw channel is connect with the first spiral shell rib by the first arc transition；Several straight troughs are offered on second spiral shell rib, straight trough is U-shaped straight trough；Second screw channel is connect with the second spiral shell rib by the second arc transition；Oblique slot structure is set to the left side of the first helicitic texture end, and oblique slot structure includes annular lug and oblique slot, and the left side of leftmost side annular lug and the left end of the body of rod keep interval to form guide part；Thereby, the wearability that can improve screw rod keeps screw rod not easy to wear, prolongs the service life, while can improve the corrosion resistance of screw rod.
Description
Technical field
The utility model is related to a kind of screw rod fields, refer in particular to a kind of wear resistant corrosion resistant type screw rod.
Background technology
Screw rod is all types of plastic extruder, Rubber Extruder, resin extruded machine and injection molding machine etc. widely used crucial zero
Part.Since working environment is in high temperature, oxidation and strong acid corrosivity, existing screw surface occurs corroding and wear, and shortens spiral shell
The service life of bar, and extruded stock is difficult, causes to block, extruder and injection molding machine is made to can not work normally.
Therefore, in the utility model patent application, applicant has studied intensively a kind of wear resistant corrosion resistant type screw rod to solve
The above problem.
Utility model content
The utility model is existing insufficient for the above-mentioned prior art, and main purpose is to provide a kind of wear resistant corrosion resistant type
Screw rod can improve the wearability of screw rod, keep screw rod not easy to wear, prolong the service life, while can improve the resistance to of screw rod
Corrosivity.
For the purpose for realizing above-mentioned, the utility model adopts the following technical scheme that：
A kind of wear resistant corrosion resistant type screw rod, including screw body, the screw body include shank, interconnecting piece and the body of rod；
The interconnecting piece includes the first step portion set gradually from right to left, second step portion, the first chamfered section and
Three stage portions, the first step portion connect aforementioned shank, and the third stage portion is recessed with helical groove, the helical form
The groove width of groove is 2mm, and the right side of the body of rod connects third stage portion, and the body of rod is equipped with the first helicitic texture, second
Helicitic texture and oblique slot structure, the body of rod, the first helicitic texture, the second helicitic texture and oblique slot structure surface by
It is outer to be equipped with carbide layers and Ni-Al alloy coating successively to interior；
First helicitic texture includes the first spiral shell rib, and structure distribution is described in the body of rod in the shape of a spiral for the first spiral shell rib
First spiral shell rib forms the first screw channel on the body of rod, and first screw channel is connect with the first spiral shell rib by the first arc transition；
Second helicitic texture is staggered between the first helicitic texture, and second helicitic texture includes the second spiral shell
Rib, structure distribution on the body of rod and is interspersed between adjacent first spiral shell rib the second spiral shell rib in the shape of a spiral, and described second
Several straight troughs are offered on spiral shell rib, the straight trough is U-shaped straight trough；The second spiral shell rib forms the second screw channel on the body of rod, described
Second screw channel is connect with the second spiral shell rib by the second arc transition；
For the oblique slot structure setting in the left side of the first helicitic texture end, the oblique slot structure includes several left sides
The annular lug of right spacing arrangement, along the circumferentially disposed several oblique slots of annular lug, the left side of the annular lug of the leftmost side and bar
The left end of body keeps interval to form guide part.
As a preferred embodiment, the thickness of the carbide layers is 0.8mm to 1mm.
As a preferred embodiment, the thickness of the Ni-Al alloy coating is 0.05mm to 0.1mm.
As a preferred embodiment, the outer diameter of the shank is more than the outer diameter in second step portion, the second step portion
Outer diameter is less than the outer diameter of third stage portion, and the outer diameter in aforementioned first step portion is less than the outer diameter in second step portion, aforementioned guide part
Outer diameter be less than first step portion outer diameter.
As a preferred embodiment, the right end in the first step portion passes through third circular sliding slopes shank, the First
The left end in rank portion passes through the 4th circular sliding slopes second step portion.
As a preferred embodiment, the outer diameter of the body of rod is less than the outer diameter in first step portion.
As a preferred embodiment, the oblique slot and axial direction are at 150 degree.
The utility model has clear advantage and advantageous effect compared with prior art, specifically：Pass through tungsten carbide
Layer, can improve the wearability of screw rod, keep screw rod not easy to wear, prolong the service life, while by Ni-Al alloy coating, can
The corrosion resistance of screw rod is improved, and, overall construction design is ingenious to be rationally easily installed, and stability is preferable, is unlikely to deform, drop
Low production loss, promotes acceptance rate, reduces production cost.
For more clearly illustrate the present invention structure feature and effect, come below in conjunction with the accompanying drawings with specific embodiment to its into
Row is described in detail.
Description of the drawings
Fig. 1 is the structural schematic diagram of the embodiment of the utility model.
Drawing reference numeral explanation：
10, shank 20, interconnecting piece
21, first step portion 22, second step portion
23, the first chamfered section 24, third stage portion
241, helical groove 30, the body of rod
31, the first spiral shell rib 32, the first screw channel
33, the second spiral shell rib 34, straight trough
35, annular lug 36, oblique slot
37, guide part.
Specific implementation mode
The utility model is further described with specific implementation mode below in conjunction with the accompanying drawings.
As shown in Figure 1, a kind of wear resistant corrosion resistant type screw rod, including screw body, the screw body include shank, connection
Portion and the body of rod；
The interconnecting piece includes the first step portion set gradually from right to left, second step portion, the first chamfered section and
Three stage portions, the first step portion connect aforementioned shank, and in the present embodiment, the right end in the first step portion passes through third
Circular sliding slopes shank；The left end in the first step portion passes through the 4th circular sliding slopes second step portion.The third stage portion is recessed
Equipped with helical groove, the groove width of the helical groove is 2mm；The right side of the body of rod connects third stage portion, in this reality
It applies in example, the outer diameter of the shank is more than the outer diameter in second step portion, and the outer diameter in the second step portion is less than third stage portion
Outer diameter, the outer diameter in aforementioned first step portion is less than the outer diameter in second step portion, and the outer diameter of aforementioned guide part is less than first step
The outer diameter in portion.
In the present embodiment, the outer diameter of the body of rod is less than the outer diameter in first step portion.The body of rod is equipped with the first spiral shell
Line structure, the second helicitic texture and oblique slot structure, the body of rod, the first helicitic texture, the second helicitic texture and oblique slot knot
The surface of structure is equipped with carbide layers and Ni-Al alloy coating, in the present embodiment, the carbide layers successively from outside to inside
Thickness is 0.8mm to 1mm；The thickness of the Ni-Al alloy coating is 0.05mm to 0.1mm.First helicitic texture includes the
One spiral shell rib, structure distribution forms the first screw channel, institute to the first spiral shell rib in the body of rod, the first spiral shell rib on the body of rod in the shape of a spiral
The first screw channel is stated to connect by the first arc transition with the first spiral shell rib；
Second helicitic texture is staggered between the first helicitic texture, and second helicitic texture includes the second spiral shell
Rib, structure distribution on the body of rod and is interspersed between adjacent first spiral shell rib the second spiral shell rib in the shape of a spiral, and described second
Several straight troughs are offered on spiral shell rib, the straight trough is U-shaped straight trough, and in the present embodiment, the depth gradual change of the U-shaped straight trough is deep
Degree is by 2.6mm gradual changes to 3.6mm；One week the second spiral shell rib cuts five straight troughs, groove width 5mm, with axis at 15 degree,；It is described
Second spiral shell rib forms the second screw channel on the body of rod, and second screw channel is connect with the second spiral shell rib by the second arc transition；
For the oblique slot structure setting in the left side of the first helicitic texture end, the oblique slot structure includes several left sides
The annular lug of right spacing arrangement, along the circumferentially disposed several oblique slots of annular lug, the oblique slot is with axial at 150 degree.Most
The left side of the annular lug in left side and the left end of the body of rod keep being spaced to form guide part, and the outer diameter of guide part is less than First
The outer diameter in rank portion.
The utility model designing points are, mainly by carbide layers, can improve the wearability of screw rod, make spiral shell
Bar is not easy to wear, prolongs the service life, while by Ni-Al alloy coating, can improve the corrosion resistance of screw rod, and, it is whole
Smart structural design is reasonable, is easily installed, and stability is preferable, is unlikely to deform, and reduces production loss, promotes acceptance rate, reduces life
Produce cost.
The above is only the utility model preferred embodiment, not appoints to the technical scope of the utility model
What is limited, therefore any trickle amendment made by the above technical examples according to the technical essence of the present invention, equivalent variations
With modification, it is still within the scope of the technical solutions of the present invention.
Claims (7)
1. a kind of wear resistant corrosion resistant type screw rod, it is characterised in that：Including screw body, the screw body includes shank, connection
Portion and the body of rod；
The interconnecting piece includes the first step portion set gradually from right to left, second step portion, the first chamfered section and third platform
Rank portion, the first step portion connect aforementioned shank, and the third stage portion is recessed with helical groove, the helical groove
Groove width be 2mm, the right side of the body of rod connects third stage portion, and the body of rod is equipped with the first helicitic texture, the second screw thread
Structure and oblique slot structure, the body of rod, the first helicitic texture, the second helicitic texture and oblique slot structure surface by outside extremely
It is inside equipped with carbide layers and Ni-Al alloy coating successively；
First helicitic texture includes the first spiral shell rib, and structure distribution is in the body of rod in the shape of a spiral for the first spiral shell rib, and described first
Spiral shell rib forms the first screw channel on the body of rod, and first screw channel is connect with the first spiral shell rib by the first arc transition；
Second helicitic texture is staggered between the first helicitic texture, and second helicitic texture includes the second spiral shell rib,
Structure distribution on the body of rod and is interspersed between adjacent first spiral shell rib the second spiral shell rib in the shape of a spiral, the second spiral shell rib
On offer several straight troughs, the straight trough is U-shaped straight trough；The second spiral shell rib forms the second screw channel on the body of rod, and described second
Screw channel is connect with the second spiral shell rib by the second arc transition；
The oblique slot structure setting in the left side of the first helicitic texture end, the oblique slot structure include several between left and right
Annular lug away from arrangement, along the circumferentially disposed several oblique slots of annular lug, the left side of the annular lug of the leftmost side and the body of rod
Left end keeps interval to form guide part.
2. wear resistant corrosion resistant type screw rod according to claim 1, it is characterised in that：The thickness of the carbide layers is
0.8mm to 1mm.
3. wear resistant corrosion resistant type screw rod according to claim 1, it is characterised in that：The thickness of the Ni-Al alloy coating is
0.05mm to 0.1mm.
4. wear resistant corrosion resistant type screw rod according to claim 1, it is characterised in that：The outer diameter of the shank is more than second
The outer diameter in rank portion, the outer diameter in the second step portion are less than the outer diameter of third stage portion, and the outer diameter in aforementioned first step portion is less than
The outer diameter in second step portion, the outer diameter of aforementioned guide part are less than the outer diameter in first step portion.
5. wear resistant corrosion resistant type screw rod according to claim 4, it is characterised in that：The right end in the first step portion passes through
The left end of third circular sliding slopes shank, the first step portion passes through the 4th circular sliding slopes second step portion.
6. wear resistant corrosion resistant type screw rod according to claim 4, it is characterised in that：The outer diameter of the body of rod is less than First
The outer diameter in rank portion.
7. wear resistant corrosion resistant type screw rod according to claim 4, it is characterised in that：The oblique slot is with axial at 150 degree.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820245887.4U CN208068825U (en) | 2018-02-11 | 2018-02-11 | Wear resistant corrosion resistant type screw rod |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820245887.4U CN208068825U (en) | 2018-02-11 | 2018-02-11 | Wear resistant corrosion resistant type screw rod |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208068825U true CN208068825U (en) | 2018-11-09 |
Family
ID=64036332
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820245887.4U Expired - Fee Related CN208068825U (en) | 2018-02-11 | 2018-02-11 | Wear resistant corrosion resistant type screw rod |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208068825U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114368128A (en) * | 2022-01-14 | 2022-04-19 | 江苏贝尔机械有限公司 | Grooved cylinder |
-
2018
- 2018-02-11 CN CN201820245887.4U patent/CN208068825U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114368128A (en) * | 2022-01-14 | 2022-04-19 | 江苏贝尔机械有限公司 | Grooved cylinder |
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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 |
Granted publication date: 20181109 Termination date: 20220211 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |