CN210358533U - High-strength wear-resistant alloy core rod - Google Patents
High-strength wear-resistant alloy core rod Download PDFInfo
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- CN210358533U CN210358533U CN201920425486.1U CN201920425486U CN210358533U CN 210358533 U CN210358533 U CN 210358533U CN 201920425486 U CN201920425486 U CN 201920425486U CN 210358533 U CN210358533 U CN 210358533U
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- screw thread
- mandrel
- resistant alloy
- core rod
- strength wear
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Abstract
The utility model discloses a high-strength wear-resistant alloy mandrel, which comprises a mandrel body, wherein one end of the mandrel body is a connecting end, the other end of the mandrel body is a transmission end, the middle of the mandrel body is a roller part, a heat dissipation hole is arranged inside the mandrel body, a mandrel sleeve is arranged outside the roller part, one end of the mandrel sleeve is connected with the transmission part, the other end of the mandrel sleeve is connected with the connecting part, and the mandrel sleeve is movably connected with the roller part. The recycling cost is lower, and the practicability is stronger.
Description
Technical Field
The utility model belongs to the metal plug field, concretely relates to high strength abrasion-resistant alloy plug.
Background
The mandrel is a tool for forming a pipe material to form an annular hole pattern when producing a seamless pipe, and is mainly used in cooperation with a plug. The continuous pipe shearer rolls pipes, extends pipes by needle rolling, and uses core rods during cold-milk cold-drawing of milk pipes, jacking pipes and pipes of the periodic pipe shearer. The core rod is a long round rod and participates in the deformation of the pipe in the deformation zone like the top head, and the difference is that the core rod rotates along with the pipe in the pipe and moves axially during the needling process, and the core rod does not rotate but moves axially along with the pipe during the indulging process.
The mandrel is an important tool in a seamless pipe processing part, the mandrel is required to be made of materials with high strength and high wear resistance, the surface quality of the mandrel influences the quality of the inner wall of the seamless pipe, scratches, abrasion and the like generated in the using process of the mandrel influence the quality of the seamless pipe, the high-strength alloy mandrel can prolong the service life, but is still abraded, and the recycling difficulty after abrasion is high.
SUMMERY OF THE UTILITY MODEL
In order to solve the problem, the utility model discloses a high strength abrasion-resistant alloy plug has solved the wear-resisting alloy plug surface of high strength and has received the influence after wearing and tearing and use and retrieve the big problem of the degree of difficulty.
A high-strength wear-resistant alloy mandrel comprises a mandrel body, wherein the mandrel body is of an integrated structure, one end of the mandrel body is a connecting end, the other end of the mandrel body is a transmission end, the middle of the connecting end and the transmission end is a roller part, the inside of the mandrel body is provided with a heat dissipation hole, the connecting end comprises a positive thread part and a reverse thread part, the positive thread part is a concentric big end and a small end, the positive thread part is provided with a fixed screw hole, the cross section of the reverse thread part is a concentric big end and a small end, a group of connecting bayonets are arranged on the outer side of the transmission end, a mandrel sleeve is arranged on the outer portion of the roller portion, one end of the mandrel sleeve is connected with the reverse thread portion, the other end of the mandrel sleeve is movably connected with the connecting bayonets, the mandrel sleeve is movably connected with the roller portion, the length of the heat dissipation hole is equal to the sum of the lengths of the transmission part, the roller part and the transmission end, and the same threads are arranged on the forward thread part and the reverse thread part.
As an improvement of the utility model, the outside diameter of the mandrel sleeve is equal to the maximum diameter of the connecting end, and the inside part of the mandrel sleeve is connected with the roller part and is provided with the guide groove.
As an improvement of the utility model, reverse screw thread portion is last to set up a set of locating piece, and locating piece and guide way phase-match.
As an improvement of the utility model, the locating piece sets up in reverse screw thread portion's minimum diameter department, and the cross-section is the rectangle, and the height of locating piece is no longer than the thickness of screw thread.
As an improvement of the utility model, the maximum diameter of link sets up spot welding portion of polishing with the maximum diameter's of mandrel cover connection position.
As an improvement of the utility model, a fastening device is arranged between the mandrel sleeve and the transmission end.
As an improvement of the utility model, the length of the mandrel sleeve is less than the sum of the lengths of the roller part and the transmission end.
The utility model has the advantages that:
a high strength abrasion-resistant alloy plug, set up detachable plug cover in the roller portion of plug body with outside, the plug cover is through reverse screw thread and this body coupling of plug and can be fixed through spot welding, the plug cover is a complete whole of structure with the plug under the user state, can receive influences such as wearing and tearing when continuing the harm of normal use at the in-process that uses, can be through cutting off spot welding department of polishing and changing the plug cover, whole life extension, it is more convenient, the recovery degree of difficulty of plug cover is less than the plug body, recovery cost is lower, the practicality is stronger.
Drawings
Fig. 1 is a schematic sectional view of the present invention.
Fig. 2 is a schematic side view of the positive thread portion of the connecting portion of the present invention.
Fig. 3 is a side view of the reverse thread portion of the connecting portion of the present invention.
Fig. 4 is a schematic side view of the transmission part and the mandrel cover of the present invention.
List of reference numerals:
1. the connecting end, 2, the transmission end, 3, the roller part, 4, the heat dissipation hole, 5, the forward thread part, 6, the reverse thread part, 7, the fixing screw hole, 8, the connecting bayonet, 9, the core rod sleeve, 10, the guide groove, 11, the positioning block and 12, the fastening device.
Detailed Description
The present invention will be further explained with reference to the accompanying drawings and embodiments, which are to be understood as illustrative only and not limiting the scope of the invention. It should be noted that the terms "front," "back," "left," "right," "upper" and "lower" used in the following description refer to directions in the drawings, and the terms "inner" and "outer" refer to directions toward and away from, respectively, the geometric center of a particular component.
As shown in the figure, the high-strength wear-resistant alloy mandrel comprises a mandrel body, wherein the mandrel body is of an integral structure, one end of the mandrel body is a connecting end 1 which is connected with a transmission device, the other end of the mandrel body is a transmission end 2 which is connected with a guide head, a roller part 3 is arranged between the connecting end 1 and the transmission end 2, a heat dissipation hole 4 is arranged in the mandrel body, the deformation caused by overheating of the mandrel body is effectively avoided, and heat dissipation can be realized, the connecting end 1 comprises a forward threaded part 5 and a reverse threaded part 6, the forward threaded part 5 is a concentric big-small head, a fixed screw hole 7 is arranged on the forward threaded part 5 and used for fixing the guide head, the cross section of the reverse threaded part 6 is a concentric big-small head and used for connecting a fixed mandrel sleeve 9, a group of connecting bayonets 8 is arranged on the outer side of the transmission end 2, a mandrel sleeve, one end and connection bayonet 8 swing joint, plug cover 9 and roller portion 3 are swing joint, and plug cover 9 can be dismantled and change, the length of louvre 4 equals the length sum of transmission portion, roller portion 3 and transmission end 2, set up the same screw thread on forward screw portion 5 and the reverse screw portion 6.
As shown in the drawing, a high strength abrasion-resistant alloy plug, set up detachable plug cover 9 outside the roller portion 3 of plug body, plug cover 9 is through reverse screw thread and this body coupling of plug and can be fixed through spot welding, plug cover 9 is a complete whole of structure with the plug under user state, can receive influences such as wearing and tearing when the harm that continues normal use at the in-process that uses, can be through cutting off spot welding department of polishing and changing plug cover 9, whole life extension, it is more convenient, the recovery degree of difficulty of plug cover 9 is less than the plug body, and recovery cost is lower, and the practicality is stronger.
As shown in the figure, the outer diameter of the mandrel sleeve 9 is equal to the maximum diameter of the connecting end 1, so that the mandrel sleeve can be more flat after being installed, the mandrel body is prevented from being influenced, and the guide groove 10 is arranged at the connecting part of the inner part of the mandrel sleeve 9 and the roller part 3, so that the mandrel sleeve can play a role in positioning in the installation process.
As shown in the figure, a set of positioning blocks 11 are arranged on the reverse thread part 6, the positioning blocks 11 are matched with the guide grooves 10, the mandrel sleeve 9 can be fixed after the mandrel sleeve 9 and the reverse threads are fastened in place, and the phenomenon that the welding state is influenced by the rotation of the mandrel sleeve 9 and even the mandrel sleeve falls off in the use process is avoided, so that the use of the mandrel body is influenced.
As shown in the figure, the positioning block 11 is arranged at the minimum diameter of the reverse thread part 6, the cross section is rectangular, the height of the positioning block 11 is not more than the thickness of the thread, and the positioning block 11 is prevented from being too high to influence the installation and fixation of the mandrel sleeve 9.
As shown in the figure, a spot welding polishing part is arranged at the connecting part of the maximum diameter of the connecting end 1 and the maximum diameter of the mandrel sleeve 9, and after the mandrel sleeve 9 is installed through threads, welding polishing is carried out again, so that the connection between the mandrel sleeve 9 and the mandrel body is more fastened.
As shown in the figure, a fastening device 12 is arranged between the mandrel sleeve 9 and the transmission end 2, so that the mandrel sleeve 9 is uniformly stressed in the use process, and the mandrel sleeve 9 is prevented from loosening and falling off due to the deformation force.
As shown in the figure, the length of the mandrel sleeve 9 is smaller than the length of the roller part 3 and the transmission end 2, so that the connection and the use of the transmission part are convenient, and the installation and the fixation of the mandrel sleeve 9 are convenient.
The technical means disclosed by the scheme of the present invention is not limited to the technical means disclosed by the above embodiments, but also includes the technical scheme formed by the arbitrary combination of the above technical features.
Claims (7)
1. The utility model provides a high strength wear-resisting alloy plug which characterized in that: including the plug body, plug body formula structure as an organic whole, plug body one end are the link, and the other end is the transmission end, the link is roller portion with the centre of transmission end, the inside louvre that sets up of plug body, the link includes forward screw thread portion and reverse screw thread portion, forward screw thread portion is concentric big or small head, sets up fixed screw on the forward screw thread portion, reverse screw thread portion cross-section is concentric big or small head, the outside of transmission end sets up a set of connection bayonet socket, the roller portion outside sets up the plug cover, reverse screw thread portion is connected to plug cover one end, one end with be connected bayonet socket swing joint, plug cover is swing joint with roller portion, the length of louvre equals the length sum of transmission portion, roller portion and transmission end, set up the same screw thread on forward screw thread portion and the reverse screw thread portion.
2. The high strength wear resistant alloy core rod of claim 1, wherein: the outer diameter of the mandrel sleeve is equal to the maximum diameter of the connecting end, and a guide groove is formed in the connecting part of the inner part of the mandrel sleeve and the roller part.
3. The high strength wear resistant alloy core rod of claim 2, wherein: and a group of positioning blocks are arranged on the reverse thread part and matched with the guide groove.
4. The high strength wear resistant alloy core rod of claim 3, wherein: the positioning block is arranged at the minimum diameter position of the reverse thread part, the cross section of the positioning block is rectangular, and the height of the positioning block does not exceed the thickness of the thread.
5. The high strength wear resistant alloy core rod of claim 1, wherein: and a spot welding polishing part is arranged at the connecting part of the maximum diameter of the connecting end and the maximum diameter of the mandrel sleeve.
6. The high strength wear resistant alloy core rod of claim 1, wherein: and a fastening device is arranged between the mandrel sleeve and the transmission end.
7. The high strength wear resistant alloy core rod of claim 1, wherein: the length of the mandrel sleeve is smaller than the sum of the lengths of the roller part and the transmission end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920425486.1U CN210358533U (en) | 2019-04-01 | 2019-04-01 | High-strength wear-resistant alloy core rod |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920425486.1U CN210358533U (en) | 2019-04-01 | 2019-04-01 | High-strength wear-resistant alloy core rod |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210358533U true CN210358533U (en) | 2020-04-21 |
Family
ID=70231181
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920425486.1U Active CN210358533U (en) | 2019-04-01 | 2019-04-01 | High-strength wear-resistant alloy core rod |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210358533U (en) |
-
2019
- 2019-04-01 CN CN201920425486.1U patent/CN210358533U/en active Active
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