CN210061880U - Replaceable screw - Google Patents
Replaceable screw Download PDFInfo
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- CN210061880U CN210061880U CN201920567421.0U CN201920567421U CN210061880U CN 210061880 U CN210061880 U CN 210061880U CN 201920567421 U CN201920567421 U CN 201920567421U CN 210061880 U CN210061880 U CN 210061880U
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- screw
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- joint
- connecting hole
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Abstract
The utility model discloses a replaceable screw, which comprises a first screw section, a joint and a second screw section which are detachably connected; the first screw section is provided with a first embedded part, and the first embedded part is provided with a first radial connecting hole; the second screw section is provided with a second embedded part, and the second embedded part is provided with a second radial connecting hole; both ends of the joint are provided with caulking grooves, and the caulking grooves are provided with third radial connecting holes; the first embedding part and the second embedding part are respectively assembled in the embedding grooves of the corresponding ends and detachably connected to the third radial connecting hole and the first radial connecting hole as well as the third radial connecting hole and the second radial connecting hole through screws; therefore, through the first screw section, the joint and the second screw section which are detachably connected, any one or any two of the first screw section, the joint and the second screw section can be freely replaced according to requirements, the universality of parts is improved, the screw joint is suitable for batch production, and the problem of high production cost caused by special processing of a single screw is solved.
Description
Technical Field
The utility model belongs to the technical field of the screw rod technique and specifically relates to indicate a removable formula screw rod.
Background
At present, a screw is one of key parts of an injection molding machine, and the screw rotates in a machine barrel of the injection molding machine to convey, compact, melt and plasticize raw materials into a molten state; in the prior art, a screw structure is generally an integrated structure, when an injection molding machine performs injection molding on different products, screws with different sizes and specifications need to be replaced and installed on the injection molding machine so as to meet the molding requirements of the different products, and the screw structure is not good enough in general type and is not suitable for batch production; the whole screw rod needs to be replaced for the worn part, the utilization rate of the screw rod is low, and the use cost is increased.
Therefore, a new technical solution is needed to solve the above problems.
SUMMERY OF THE UTILITY MODEL
In view of the above, the present invention provides a replaceable screw rod, which can freely replace any one or two of the first screw rod section, the joint and the second screw rod section as required, so as to improve the versatility of the parts, be suitable for mass production, and avoid the problem of high production cost caused by the need of special manufacturing process for a single screw rod.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
a replaceable screw comprises a first screw section, a joint and a second screw section which are detachably connected, wherein the first screw section is detachably connected with one end of the joint, and the second screw section is detachably connected with the other end of the joint;
one end of the first screw section is provided with an installation handle part, the other end of the first screw section is provided with a first embedding part, and the first embedding part is provided with a first radial connecting hole; the outer diameter of the rod body part of the first screw rod section is gradually enlarged from one end of the first screw rod section to the other end, and the outer diameter of the screw teeth of the first screw rod is kept unchanged;
one end of the second screw rod section is provided with a second embedded part, and the second embedded part is provided with a second radial connecting hole;
both ends of the joint are provided with caulking grooves, and the wall bodies of the caulking grooves are provided with third radial connecting holes;
the first embedding part and the second embedding part are respectively assembled in the embedding grooves of the corresponding ends and detachably connected to the third radial connecting hole and the first radial connecting hole as well as the third radial connecting hole and the second radial connecting hole through screws.
As a preferred scheme, three sections are arranged from one end of the first screw section to the other end of the first screw, and are defined as a first screw, a second screw and a third screw, the fillet of the first screw and the body part of the rod is larger than the fillet of the second screw and the body part of the rod, and the fillet of the second screw and the body part of the rod is larger than the fillet of the third screw and the body part of the rod.
As a preferred scheme, an auxiliary section is arranged on the joint, and the auxiliary section is a transition thread section, an axial vertical thread section or a diagonal thread section.
Preferably, the second screw section is provided with primary teeth and secondary teeth which are alternately spirally arranged, the outer diameter of the primary teeth is larger than that of the secondary teeth, the primary teeth and the secondary teeth are provided with reverse cutting grooves, the reverse cutting grooves and the screw teeth are arranged in a crossed mode, and an included angle between each reverse cutting groove and the axis is 30-60 degrees.
Preferably, the first screw section, the joint and the second screw section are provided with electroplated surfaces.
Compared with the prior art, the utility model has obvious advantages and beneficial effects, particularly, can know by above-mentioned technical scheme, it is mainly through first screw rod section, joint, the second screw rod section of detachable connection, can freely change any one or arbitrary two in first screw rod section, joint, the second screw rod section three as required, on the one hand, can freely assemble the screw rod of multiple different specifications at screw rod manufacture firm, improve the commonality of part, be suitable for batch production, avoid single screw rod need special processing procedure and the high problem of manufacturing cost that leads to; on the other hand, after the screw rod is used for a period of time, the worn parts can be partially replaced without replacing or scrapping the whole screw rod, so that the use cost is reduced, and the waste is avoided;
secondly, first screw rod section, joint, second screw rod section triplex are the components of a whole that can function independently preparation, can select different materials to make, and the screw rod performance presents the pluralism, and simultaneously, the degree of difficulty of components of a whole that can function independently preparation reduces, forms different threads, line etc. better, compares integral type screw rod, can present abundanter function threads, screw thread etc..
To illustrate the structural features and functions of the present invention more clearly, the present invention will be described in detail with reference to the accompanying drawings and specific embodiments.
Drawings
Fig. 1 is a first cross-sectional view of an embodiment of the invention;
fig. 2 is a second cross-sectional view of an embodiment of the present invention (showing a cross-sectional view of the connection of the first thread segment, the joint and the second thread segment);
fig. 3 is a partially enlarged view of an embodiment of the present invention (in the figure, the enlarged view of the main teeth and the auxiliary teeth of the second thread segment).
The attached drawings indicate the following:
10. first screw section 11, installation handle
12. First embedding part 121 and first radial connecting hole
13. First screw thread 14 and second screw thread
15. Third thread 20, joint
21. Caulking groove 211, third radial connecting hole
22. Screw 30, second screw section
31. Second insertion portion 311, second radial connection hole
32. Primary tooth 33 and secondary tooth
34. And (4) reversely cutting the groove.
Detailed Description
Fig. 1 to fig. 3 show specific structures of embodiments of the present invention.
A replaceable screw comprises a first screw section 10, a joint 20 and a second screw section 30 which are detachably connected, wherein the first screw section 10 is detachably connected with one end of the joint 20, and the second screw section 30 is detachably connected with the other end of the joint 20;
the first screw section 10 has a mounting shank 11 at one end and a first embedding portion 12 at the other end, and the first embedding portion 12 is provided with a first radial connecting hole 121; the outer diameter of the body of the first screw section 10 is gradually enlarged from one end of the first screw section 10 to the other end, and the outer diameter of the screw thread of the first screw section 10 is kept unchanged;
one end of the second screw section 30 is provided with a second embedded part 31, and the second embedded part 31 is provided with a second radial connecting hole 311;
both ends of the joint 20 are provided with caulking grooves 21, the wall body of each caulking groove 21 is provided with a third radial connecting hole 211, and here, the joint 20 is provided with an auxiliary section which is a transition thread section, an axial vertical thread section or a diagonal thread section;
the first embedding part 12 and the second embedding part 31 are respectively assembled in the embedding grooves 21 of the corresponding ends and detachably connected to the third radial connecting hole 211 and the first radial connecting hole 121, and the third radial connecting hole 211 and the second radial connecting hole 311 through screws 22; therefore, any one or any two of the first screw section 10, the joint 20 and the second screw section 30 can be freely replaced according to the requirement, on one hand, the universality of parts is improved, the screw joint is suitable for batch production, and the problem of high production cost caused by special processing of a single screw is avoided; on the other hand, the part can be partially replaced without replacing or scrapping the whole screw, so that the use cost is reduced, and the waste is avoided.
As shown in fig. 1, three sections of threads are arranged along one end of the first screw section 10 to the other end of the first screw section 10, and are defined as a first thread 13, a second thread 14 and a third thread 15, the fillet of the first thread 13 and the body portion is larger than the fillet of the second thread 14 and the body portion, and the fillet of the second thread 14 and the body portion is larger than the fillet of the third thread 15 and the body portion.
Furthermore, the second screw section 30 is provided with a primary thread 32 and a secondary thread 33 which are alternately spirally arranged, the outer diameter of the primary thread 32 is larger than that of the secondary thread 33, the primary thread 32 and the secondary thread 33 are provided with reverse cutting grooves 34, the reverse cutting grooves 34 are crosswise arranged with the threads, and the reverse cutting grooves 34 form an included angle of 30-60 degrees with the axis; here, the reverse cutting groove 34 is preferably designed to form an angle of 45 degrees with the axis.
Preferably, the first screw section 10, the joint 20 and the second screw section 30 all have plated surfaces; so that the first screw section 10, the joint 20 and the second screw section 30 have better wear resistance, heat resistance and corrosion resistance, thereby improving the overall durability and prolonging the service life.
The utility model is mainly designed in such a way that any one or any two of the first screw section, the joint and the second screw section can be freely replaced according to needs through the first screw section, the joint and the second screw section which are detachably connected, on one hand, screws with various specifications can be freely assembled by screw manufacturers, the universality of parts is improved, the utility model is suitable for batch production, and the problem of high production cost caused by the requirement of special manufacturing processes for a single screw is avoided; on the other hand, after the screw rod is used for a period of time, the worn parts can be partially replaced without replacing or scrapping the whole screw rod, so that the use cost is reduced, and the waste is avoided;
secondly, first screw rod section, joint, second screw rod section triplex are the components of a whole that can function independently preparation, can select different materials to make, and the screw rod performance presents the pluralism, and simultaneously, the degree of difficulty of components of a whole that can function independently preparation reduces, forms different threads, line etc. better, compares integral type screw rod, can present abundanter function threads, screw thread etc..
The above description is only a preferred embodiment of the present invention, and is not intended to limit the technical scope of the present invention, so that any slight modifications, equivalent changes and modifications made by the technical spirit of the present invention to the above embodiments are all within the scope of the technical solution of the present invention.
Claims (5)
1. A replaceable screw, characterized by: the screw joint comprises a first screw section, a joint and a second screw section which are detachably connected, wherein the first screw section is detachably connected with one end of the joint, and the second screw section is detachably connected with the other end of the joint;
one end of the first screw section is provided with an installation handle part, the other end of the first screw section is provided with a first embedding part, and the first embedding part is provided with a first radial connecting hole; the outer diameter of the rod body part of the first screw rod section is gradually enlarged from one end of the first screw rod section to the other end, and the outer diameter of the screw teeth of the first screw rod is kept unchanged;
one end of the second screw rod section is provided with a second embedded part, and the second embedded part is provided with a second radial connecting hole;
both ends of the joint are provided with caulking grooves, and the wall bodies of the caulking grooves are provided with third radial connecting holes;
the first embedding part and the second embedding part are respectively assembled in the embedding grooves of the corresponding ends and detachably connected to the third radial connecting hole and the first radial connecting hole as well as the third radial connecting hole and the second radial connecting hole through screws.
2. The replaceable screw of claim 1, wherein: the screw teeth of the first screw section are provided with three sections towards the other end along one end of the first screw section, the three sections are defined as first screw teeth, second screw teeth and third screw teeth, the fillet of the first screw teeth and the rod body part is larger than the fillet of the second screw teeth and the rod body part, and the fillet of the second screw teeth and the rod body part is larger than the fillet of the third screw teeth and the rod body part.
3. The replaceable screw of claim 1, wherein: the joint is provided with an auxiliary section which is a transition thread section, an axial vertical thread section or a diagonal thread section.
4. The replaceable screw of claim 1, wherein: the second screw rod section is provided with main teeth and auxiliary teeth which are alternately and spirally arranged, the outer diameter of the main teeth is larger than that of the auxiliary teeth, the main teeth and the auxiliary teeth are provided with reverse cutting grooves, the reverse cutting grooves and the screw teeth are arranged in a crossed mode, and an included angle of 30-60 degrees is formed between each reverse cutting groove and the axis.
5. The replaceable screw of claim 1, wherein: the first screw section, the joint and the second screw section are all provided with electroplating surfaces.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920567421.0U CN210061880U (en) | 2019-04-24 | 2019-04-24 | Replaceable screw |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920567421.0U CN210061880U (en) | 2019-04-24 | 2019-04-24 | Replaceable screw |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210061880U true CN210061880U (en) | 2020-02-14 |
Family
ID=69438432
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920567421.0U Active CN210061880U (en) | 2019-04-24 | 2019-04-24 | Replaceable screw |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210061880U (en) |
-
2019
- 2019-04-24 CN CN201920567421.0U patent/CN210061880U/en active Active
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