CN210233892U - Spliced screw rod butted through units - Google Patents
Spliced screw rod butted through units Download PDFInfo
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- CN210233892U CN210233892U CN201920784849.0U CN201920784849U CN210233892U CN 210233892 U CN210233892 U CN 210233892U CN 201920784849 U CN201920784849 U CN 201920784849U CN 210233892 U CN210233892 U CN 210233892U
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Abstract
The utility model discloses a concatenation formula screw rod through unit butt joint, include the screw rod body of continuous constitution of axle center by a plurality of screw rod units, be equipped with the installation passageway that runs through its both ends in the screw rod unit, all can install in the installation passageway of every screw rod unit and connect the pole unit, the connecting rod unit includes middle part connecting rod that middle part diameter and installation passageway diameter are close, and the connecting rod tip that tip diameter ratio installation passageway diameter is little, set up on the connecting rod tip outer lane and put the screw thread, be used for and tightring threaded connection, adjacent connecting rod unit connection cup joints and threaded connection through the axle center connecting rod tip and becomes integrative, and its technical scheme main points do, under the condition that need not change corresponding part, the enterprise can be more convenient carry out the length repacking of screw rod by oneself and adapt to different demands, improve practicality and commonality.
Description
Technical Field
The utility model relates to a screw rod technical field, in particular to concatenation formula screw rod through unit butt joint.
Background
The screw is a cylinder with a spiral groove cut on the outer surface or a cone with a conical spiral groove cut on the outer surface, and is widely applied to plastic forming equipment, such as plastic profile extruders, injection molding machines and the like. The existing screw is usually integrally formed, however, the length and the size of the screw applied in different machines are different, so that the screw produced by people has various length models in order to be suitable for the different machines, so that the same screw can only be used in the same machine, and the universality is poor.
In the prior art, patent No. CN201821431096.7 discloses a screw rod butted by units, which solves the problem of poor universality of the existing screw rod. This screw rod through unit butt joint includes the screw rod body, the screw rod body includes a plurality of screw rod units that splice each other together, the through-hole that link up has been seted up in the screw rod unit, the terminal surface of two adjacent screw rod bodies is equipped with respectively and carries out spacing spacer pin of circumference and spacing hole, a dead lever has been worn in their through-hole after the screw rod unit concatenation is accomplished, the one end of dead lever is equipped with the rand, the other end is equipped with the screw thread, the threaded end cover of dead lever is equipped with a nut, the week side of dead lever is equipped with a plurality of groups and extrudees fixed part, a set of extrusion fixed part corresponds. Compared with the prior art, the screw is formed by splicing the plurality of screw units, can be freely disassembled and combined, has strong universality, and can be applied to mechanical equipment with various different requirements.
However, the screw rods butted through the units have the obvious problem that the length of the fixing rods is still close to that of the screw rod body, the fixing rods still need to be replaced to meet different machine and length requirements, and the screw rods have great limitation.
SUMMERY OF THE UTILITY MODEL
Not enough to prior art exists, the utility model aims to provide a through the concatenation formula screw rod of unit butt joint, under the condition that need not change corresponding part, the enterprise can be more convenient carry out the length repacking of screw rod by oneself and adapt to different demands, improve practicality and commonality.
The above technical purpose of the present invention can be achieved by the following technical solutions:
the utility model provides a concatenation formula screw rod through unit butt joint, includes the screw rod body that links to each other to form with the axle center by a plurality of screw rod units, be equipped with the installation passageway that runs through its both ends in the screw rod unit, all can install in the installation passageway of every screw rod unit and connect the pole unit, the connecting rod unit includes middle part connecting rod that middle part diameter and installation passageway diameter are close, and the connecting rod tip that tip diameter ratio installation passageway diameter is little, set up on the connecting rod tip outer lane and put the screw thread, be used for with tighrening ring threaded connection, adjacent connecting rod unit connection cup joints and threaded connection through the connecting rod tip with the axle center and becomes integrative.
Further preferably: the connecting rod units are arranged to be polygonal and are in accurate limit butt joint, or the connecting rod units are arranged to be cylindrical and are provided with limit blocks on outer rings of the connecting rod units to be in accurate limit butt joint.
Further preferably: the end part of the fastening ring is provided with a cross slot or a multi-edge slot matched with the mounting part for facilitating the rotary fastening, or a cross bulge or a multi-edge bulge.
Further preferably: the screw rod unit end part is provided with an alignment groove, and the adjacent screw rod unit end part is provided with an alignment bulge.
To sum up, the utility model discloses the beneficial effect who contrasts in prior art does: the existing integrated fixing rod structure is improved, and the integrated fixing rod is formed by connecting the splicing type connecting rod units, so that the connecting rod units are tightly connected with the installation channel in a sleeving and threaded connection mode, excessive stress destructiveness is avoided, the structural firmness of the connected connecting rod units can be ensured, and each screw rod unit is provided with one connecting rod unit; when needs increase screw rod body length or reduce screw rod body length, only need connect the linkage unit earlier, cup joint the screw rod unit again, finally fix through the tighrening ring can, simple and convenient, under the condition that need not change corresponding part, the enterprise can be more convenient carry out the length repacking of screw rod by oneself and adapt to different demands, improve practicality and commonality.
Drawings
FIG. 1 is a schematic view of the overall structure of the embodiment;
fig. 2 is a schematic structural view of a single screw unit, a connecting rod unit and a fastening ring in the embodiment of fig. 1.
Reference numerals: 1. a screw body; 2. a screw unit; 21. installing a channel; 3. a link unit; 31. a middle connecting rod; 32. a connecting rod end; 4. a fastening ring; 5. aligning the groove; 6. and aligning the protrusion.
Detailed Description
The following provides a more detailed description of the present invention with reference to the accompanying drawings.
A spliced screw rod butted by units is disclosed, referring to fig. 1 and fig. 2, comprising a screw rod body 1 formed by connecting a plurality of screw rod units 2 with the same axle center, the end part of each screw rod unit 2 is provided with an aligning groove 5, the end part of the adjacent screw rod unit 2 is provided with an aligning bulge 6, the screw rod unit 2 is internally provided with an installing channel 21 penetrating through the two ends of the screw rod unit, a connecting rod unit is arranged in the installing channel 21 of each screw rod unit 2, the connecting rod unit 3 is arranged to be polygonal for limiting accurate butt joint, or the connecting rod unit 3 is arranged to be cylindrical and a limiting block is arranged on the outer ring of the connecting rod unit 3 for limiting accurate butt joint, in the existing design, the connecting rod unit 3 is arranged in a cylindrical manner and is provided with a limiting block, and the cylindrical connecting rod unit 3 is tightly attached to the installation channel 21, so that excessive structural complexity does not exist, and the structural stability of stress failure can be reduced as much as possible.
The connecting rod units 3 comprise middle connecting rods 31 with the diameters of the middle parts close to the diameters of the installation channels 21 and connecting rod end parts 32 with the diameters of the end parts smaller than the diameters of the installation channels 21, threads are arranged on the outer rings of the connecting rod end parts 32 and are used for being in threaded connection with the fastening ring 4, the adjacent connecting rod units 3 are connected and coaxially sleeved through the connecting rod end parts 32 and are connected into a whole through threads, and the end parts of the fastening ring 4 are provided with cross slots or multi-side open slots, cross bulges or multi-side open bulges which are matched with the installation parts and are convenient to rotate and.
The above description is only an exemplary embodiment of the present invention, and is not intended to limit the scope of the present invention, which is defined by the appended claims.
Claims (4)
1. The utility model provides a concatenation formula screw rod through unit butt joint, includes screw rod body (1) that constitutes by linking to each other with the axle center by a plurality of screw rod units (2), characterized by: be equipped with in screw rod unit (2) and run through installation passageway (21) at its both ends, all can install the connecting rod unit in installation passageway (21) of every screw rod unit (2), connecting rod unit (3) include middle part connecting rod (31) that middle part diameter and installation passageway (21) diameter are close, and tip diameter ratio installation passageway (21) diameter is little connecting rod tip (32), set up on connecting rod tip (32) outer lane and put the screw thread, be used for with tighrening ring (4) threaded connection, adjacent connecting rod unit (3) are connected and are cup jointed and threaded connection through connecting rod tip (32) coaxial core and become an organic whole.
2. The screw assembly of claim 1 wherein the screw assembly comprises: the connecting rod unit (3) is arranged to be polygonal and is in limited and accurate butt joint, or the connecting rod unit (3) is arranged to be cylindrical and is provided with a limiting block on the outer ring of the connecting rod unit (3) to be in limited and accurate butt joint.
3. The screw assembly of claim 1 wherein the screw assembly comprises: the end part of the fastening ring (4) is provided with a cross slot or a multi-edge slot, or a cross bulge or a multi-edge bulge which is matched with the mounting part and is convenient for rotary fastening.
4. The screw assembly of claim 1 wherein the screw assembly comprises: the end part of the screw rod unit (2) is provided with an alignment groove (5), and the end part of the screw rod unit (2) adjacent to the screw rod unit is provided with an alignment bulge (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920784849.0U CN210233892U (en) | 2019-05-28 | 2019-05-28 | Spliced screw rod butted through units |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920784849.0U CN210233892U (en) | 2019-05-28 | 2019-05-28 | Spliced screw rod butted through units |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210233892U true CN210233892U (en) | 2020-04-03 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920784849.0U Active CN210233892U (en) | 2019-05-28 | 2019-05-28 | Spliced screw rod butted through units |
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| Country | Link |
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| CN (1) | CN210233892U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113276385A (en) * | 2021-06-08 | 2021-08-20 | 河南工业职业技术学院 | Extrusion molding mold with controllable extrusion rate |
-
2019
- 2019-05-28 CN CN201920784849.0U patent/CN210233892U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113276385A (en) * | 2021-06-08 | 2021-08-20 | 河南工业职业技术学院 | Extrusion molding mold with controllable extrusion rate |
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