CN203737779U - High-speed synchronous type core bar device - Google Patents
High-speed synchronous type core bar device Download PDFInfo
- Publication number
- CN203737779U CN203737779U CN201420119457.XU CN201420119457U CN203737779U CN 203737779 U CN203737779 U CN 203737779U CN 201420119457 U CN201420119457 U CN 201420119457U CN 203737779 U CN203737779 U CN 203737779U
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- CN
- China
- Prior art keywords
- connecting rod
- handed
- screw thread
- dextrorotation
- core print
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Abstract
The utility model relates to a high-speed synchronous type core bar device which comprises a connecting rod, a supporting core head and a threaded rod. One end of the connecting rod is provided with internal threads and connected with the threaded rod in a threaded mode. An external thread core head is arranged outside the threaded rod and in clearance fit with the threaded rod. The other end of the connecting rod is provided with right-handed external threads. The end, with the right-handed external threads, of the connecting rod is provided with a right-handed hard nut. The right-handed hard nut and the supporting core head are both connected with the right-handed external threads in a threaded mode. A one-way thrust ball bearing is arranged between the right-handed hard nut and the supporting core head. Due to the fact that high-flexibility rotation capacity is achieved between the supporting core head, the connecting rod and the external thread core head, copper pipe breaking and size instability can not be caused by rotation unsmoothness of the external thread core head when thin-tooth seamless internal thread copper pipes with the extra-large spiral angle of 40 degrees to 60 degrees are produced. No abrasion is produced between the one-way thrust ball bearing and the right-handed hard nut, and no iron chips fall in the production process. The right-handed hard nut can not get loose even when a core bar rotates slightly.
Description
Technical field
The utility model relates to a kind of high-speed synchronous formula core bar device that the thin tooth seamless internal thread copper pipe processing of super large helical angle internal tooth is used of producing, and belongs to highly effective refrigeration seamless copper pipe processing technique field.
Background technology
The thin tooth seamless internal thread copper pipe of super large helical angle has high efficient heat exchanging performance, is widely used in high-end refrigeration industry.Due to seamless copper pipe helical angle super large, seamless internal thread copper pipe is in processing internal tooth process, screw thread core print rotary speed is fast, and the rotation of screw thread core print time is rotated together with connecting rod, normal occur that rotation having some setbacks and the disconnected pipe of resistance large copper pipe, tooth proportions are unstable and nut wear phenomenon, this difficult problem is to cause one of reason that the thin tooth seamless internal thread copper pipe of super large helical angle cannot normally produce.
Existing processing unit (plant) is described in detail as follows:
As shown in Figure 1, there is external screw thread at connecting rod 11 two ends, and one end is equipped with high-precision external screw thread core print 12, and end is fixing with two plain nuts 14, is fixed as one with connecting rod 11.Connecting rod 11 other ends are equipped with and support core print 13, and locate with two plain nuts 15 end.In the time of processing seamless internal thread copper pipe internal tooth, support core print 13 along circumferential micro-rotation, and high accuracy external screw thread core print 12 is subject to the rotation of planetary steel ball 18 and the impact of internal screw tooth, screw thread core print 12 is together with connecting rod 11 and planetary steel ball 18 high speed rotating in the other direction, seamless internal thread copper pipe helical angle is larger, and screw thread core print 12 is faster together with the unit interval rotary speed of connecting rod 11.
This device shortcoming is as follows:
1, screw thread core print 12 supports core print 13 high speed rotating relatively together with connecting rod 11 one.In the time producing the thin tooth seamless internal thread copper pipe of super large helical angle, the velocity of rotation of screw thread core print 12 is 3～4 times of common tube, and this installs screw thread core print 12 together with connecting rod 11 unitary rotation, heavy core bar device rotates to have some setbacks and can cause copper pipe enhanced stretch resistance greatly and disconnected pipe.
2, support core print 13 end faces and produce relative high speed rotating with plain nut 15 end faces, cause the iron filings of plain nut end wear to drop at copper pipe inwall, extruding embeds tubing, causes copper tube leakage.In addition, the wearing and tearing of plain nut, cause the externally threaded damage in connecting rod end, affect the service life of connecting rod 11.
Utility model content
The technical problems to be solved in the utility model is: in order to overcome that core bar device that the thin tooth seamless internal thread copper pipe of existing super large helical angle processing internal tooth uses often occurs that rotation has some setbacks and the disconnected pipe of resistance large copper pipe, tooth proportions are unstable and the deficiency of nut wear phenomenon, the utility model provides a kind of high-speed synchronous formula core bar device.
The utility model solves the technical scheme that its technical problem adopts: a kind of high-speed synchronous formula core bar device, comprise that connecting rod, support core print and one end are with externally threaded screw rod, one end of described connecting rod has internal thread, be threaded mutually with the external screw thread of described screw rod, described screw jacket is provided with the external screw thread core print that a seamless copper pipe processing internal tooth is used, the radial and axial matched in clearance of described external screw thread core print and described screw rod;
The other end of described connecting rod has dextrorotation external screw thread, described support core print is threaded mutually with the dextrorotation external screw thread of described connecting rod, described connecting rod with the externally threaded end of dextrorotation, a dextrorotation hard nut is installed, described dextrorotation hard nut is threaded with the dextrorotation external screw thread of connecting rod, between described dextrorotation hard nut and support core print, single direction thrust ball bearing is housed.
The beneficial effects of the utility model are, high-speed synchronous formula core bar device of the present utility model, there is each other highly sensitive rotatory power owing to supporting core print, connecting rod and screw thread core print three, therefore in the time of the thin tooth seamless internal thread copper pipe of super large helical angle of producing 40 °～60 °, can not break with size unstable because screw thread core print rotates the large copper pipe of the resistance that has some setbacks.Single direction thrust ball bearing and dextrorotation hard nut do not produce wearing and tearing, drop in process of production without iron filings, guarantee product quality.Hard nut adopts right-handed thread, and what inner screw thread copper pipe was processed is left-handed internal tooth, when the micro-rotation of core bar, can not cause hard right-handed nut loosening.
Brief description of the drawings
Below in conjunction with drawings and Examples, the utility model is further illustrated.
Fig. 1 is the structural representation of existing core bar device.
In figure 11, connecting rod, 12, screw thread core print, 13, support core print, 14, the plain nut of external screw thread core print end, 15, the plain nut of supporting-core head end, 16, support external mold, 17, spinning ring, 18, steel ball, 19, copper pipe.
Fig. 2 is the structural representation of the optimum embodiment of high-speed synchronous formula core bar device of the present utility model.
In figure 1, connecting rod, 2, screw thread core print, 3, support core print, 4, screw rod, 5, single direction thrust ball bearing, 6, dextrorotation hard nut, 7, support external mold, 8, steel ball, 9, spinning ring, 10, copper pipe.
Detailed description of the invention
By reference to the accompanying drawings the utility model is described in further detail now.These accompanying drawings are the schematic diagram of simplification, and basic structure of the present utility model is only described in a schematic way, and therefore it only shows the formation relevant with the utility model.
As shown in Figure 2, a kind of high-speed synchronous formula core bar device of the present utility model, comprise that connecting rod 1, support core print 3 and one end are with externally threaded screw rod 4, one end of described connecting rod 1 has internal thread, be threaded mutually with the external screw thread of described screw rod 4, the outer external screw thread core print 2 that a seamless copper pipe processing internal tooth is used, the radial and axial matched in clearance of described external screw thread core print 2 and described screw rod 4 of being arranged with of described screw rod 4; The other end of described connecting rod 1 has dextrorotation external screw thread, described support core print 3 is threaded mutually with the dextrorotation external screw thread of described connecting rod 1, described connecting rod 1 with the externally threaded end of dextrorotation, a dextrorotation hard nut 6 is installed, described dextrorotation hard nut 6 is threaded with the dextrorotation external screw thread of connecting rod 1, between described dextrorotation hard nut 6 and support core print 3, single direction thrust ball bearing 5 is housed.
A dextrorotation hard nut 6 of dextrorotation external screw thread assembling of connecting rod 1 positions, and dextrorotation hard nut 6 is equipped with single direction thrust ball bearing 5 with supporting between core print 3, makes connecting rod 1 have a highly sensitive rotatory power to relative with support core print 3.There is each other highly sensitive rotatory power owing to supporting core print 3, connecting rod 1 and screw thread core print 2 threes, when this device is produced the thin tooth seamless internal thread copper pipe of super large helical angle of 40 °～60 °, can not break with size unstable because screw thread core print 2 rotates the large copper pipe of the resistance that has some setbacks.
Single direction thrust ball bearing 5 does not produce wearing and tearing with dextrorotation hard nut 6, drops in process of production without iron filings, guarantees product quality.Hard nut adopts right-handed thread, and what inner screw thread copper pipe was processed is left-handed internal tooth, when the micro-rotation of core bar, can not cause hard right-handed nut loosening.
Taking above-mentioned foundation desirable embodiment of the present utility model as enlightenment, by above-mentioned description, relevant staff can, not departing from the scope of this utility model technological thought, carry out various change and amendment completely.The technical scope of this utility model is not limited to the content on description, must determine its technical scope according to claim scope.
Claims (1)
1. a high-speed synchronous formula core bar device, it is characterized in that: comprise that connecting rod (1), support core print (3) and one end are with externally threaded screw rod (4), one end of described connecting rod (1) has internal thread, be threaded mutually with the external screw thread of described screw rod (4), the outer external screw thread core print (2) that a seamless copper pipe processing internal tooth is used, the radial and axial matched in clearance of described external screw thread core print (2) and described screw rod (4) of being arranged with of described screw rod (4); The other end of described connecting rod (1) has dextrorotation external screw thread, described support core print (3) is threaded mutually with the dextrorotation external screw thread of described connecting rod (1), described connecting rod (1) with the externally threaded end of dextrorotation, a dextrorotation hard nut (6) is installed, described dextrorotation hard nut (6) is threaded with the dextrorotation external screw thread of connecting rod (1), between described dextrorotation hard nut (6) and support core print (3), single direction thrust ball bearing (5) is housed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420119457.XU CN203737779U (en) | 2014-03-17 | 2014-03-17 | High-speed synchronous type core bar device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420119457.XU CN203737779U (en) | 2014-03-17 | 2014-03-17 | High-speed synchronous type core bar device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203737779U true CN203737779U (en) | 2014-07-30 |
Family
ID=51337643
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420119457.XU Expired - Fee Related CN203737779U (en) | 2014-03-17 | 2014-03-17 | High-speed synchronous type core bar device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203737779U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117900360A (en) * | 2024-01-30 | 2024-04-19 | 常州润来科技有限公司 | Quick start type copper pipe internal thread forming device and method |
-
2014
- 2014-03-17 CN CN201420119457.XU patent/CN203737779U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117900360A (en) * | 2024-01-30 | 2024-04-19 | 常州润来科技有限公司 | Quick start type copper pipe internal thread forming device and method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140730 Termination date: 20180317 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |