CN202638865U - Core rod locking device - Google Patents
Core rod locking device Download PDFInfo
- Publication number
- CN202638865U CN202638865U CN 201220315728 CN201220315728U CN202638865U CN 202638865 U CN202638865 U CN 202638865U CN 201220315728 CN201220315728 CN 201220315728 CN 201220315728 U CN201220315728 U CN 201220315728U CN 202638865 U CN202638865 U CN 202638865U
- Authority
- CN
- China
- Prior art keywords
- core rod
- connector
- locking device
- plug
- wedge
- Prior art date
- 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 - Lifetime
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Abstract
The utility model relates to steel rolling machinery, and provides a core rod locking device which solves the problems that an existing core rod device is complex in structure and difficult to replace. The core rod locking device comprises a connector, a snap ring, a screw, a hinge pin, a guide roller and an oblique wedge. The front end of the connector is connected with core rod motion limiting equipment through the hinge pin, and the rear portion of the connector is provided with an oblique plane corresponding to the head portion of a core rod. An inner cavity capable of holding a core rod head is arranged behind the oblique plane. The snap ring is arranged on a step position of the oblique plane and the inner cavity through the screw in a connecting mode. The guide roller matched with the oblique wedge for use is mounted on the outer side of the connector. The oblique wedge is fixed on the core rod motion limiting equipment. The core rod locking device is used for seamless steel tube core rod motion limiting rolling, and has the advantages of being simple in structure and favorable for replacing the core rod.
Description
Technical field
The utility model relates to rolling machinery, particularly a kind of plug locking device of rolling mill.
Background technology
At present, what adopt at seamless steel tube production chain is that mandrel movement limiting is rolling and since plug must with the mandrel movement limiting equipment connection, in order to increase plug service life, to reduce rolling time, plug adopts endless form simultaneously.So each cycle needs with plug and mandrel movement limiting equipment connection once to open once again.
The plug locking device of prior art adopts the clamp form, and during connection, when core head contacts with clamp, clamp opens, and core head is close again to clamp, jaws close; When opening, clamp opens, and core head is away from clamp, jaws close.The plug locking device structure more complicated of prior art can not quick-replaceable.
Summary of the invention
The purpose of this utility model is exactly the shortcoming that exists for prior art, and a kind of plug locking device is provided, and it is complicated to solve existing plug locking device structure, changes hard problem.
The utility model is achieved through the following technical solutions.
A kind of plug locking device, it is characterized in that: described plug locking device is comprised of connector, snap ring, screw, bearing pin, guide wheel and wedge, the front end of described connector is by bearing pin and mandrel movement limiting equipment connection, the rear portion of connector is provided with the inclined-plane corresponding with the head of plug, be provided with the inner chamber that can hold core head after the described inclined-plane, step place at described inclined-plane and described inner chamber, be connected with snap ring with screw, in the outside of described connector the guide wheel that is used with wedge is installed, described wedge is fixed on the mandrel movement limiting equipment.
The utility model compared with prior art, owing to be provided with the plug locking device that is formed by connector, snap ring, screw, bearing pin, guide wheel and wedge at mandrel movement limiting equipment, during connection, the inclined-plane of connector slides along the inclined-plane of core head and is lifted, when sliding into snap ring the right, connector falls after rise with core head fits, and the realization connector is connected with plug; When opening, guide wheel moves up along wedge with connector, and the realization connector separates with plug.It is rolling that the utility model is used for the seamless steel pipe mandrel restraint, has simple in structurely, changes easily advantage of plug.
Description of drawings
Fig. 1 is connection original state figure of the present utility model;
Fig. 2 is moving process state diagram of the present utility model;
Fig. 3 is connection end-state figure of the present utility model;
Fig. 4 is mask work state diagram of the present utility model.
The utility model is further described by preferred embodiment below in conjunction with accompanying drawing.
The specific embodiment
As shown in Figure 1, a kind of plug locking device is by connector 1, snap ring 2, screw 3, bearing pin 4, guide wheel 5 and wedge 6 form, the front end of described connector 1 is by bearing pin 4 and mandrel movement limiting equipment connection, the rear portion of described connector 1 is provided with the inclined-plane 1-1 corresponding with the head 7-1 of plug 7, be provided with the inner chamber 1-2 that can hold the plug head after the described inclined-plane 1-1, step place at described inclined-plane 1-1 and described inner chamber 1-2, be connected with snap ring 2 with screw 3, in the outside of described connector 1 guide wheel 5 that is used with wedge 6 is installed, described wedge 6 is fixed on the mandrel movement limiting equipment.
Shown in Fig. 1,2,3,4, operation principle of the present utility model is as follows:
When 1, connecting, connector 1 moves to plug 7, because plug is motionless, the inclined-plane 1-1 of connector 1 slides along the inclined-plane of the head 7-1 of plug and is lifted, when sliding into snap ring 2 the right, because Action of Gravity Field connector 1 falls after rise, the head 7-1 of connector 1 and plug fits, and the realization connector is connected with plug.
When 2, opening, connector 1 moves away from plug, and guide wheel 5 contacts with wedge 6, and guide wheel 5 moves up along wedge 6, and connector 1 also moves up, and connector 1 leaves the head 7-1 of plug.The realization connector separates with plug.
Installation steps are as follows:
1, snap ring 2 usefulness screws 3 is connected on the connector 1;
2, guide wheel 5 is installed on the connector 1;
3, the sub-assembly and the restraint equipment connection that with bearing pin 4 step 1,2 are assembled;
4, the operating position according to connector 1 is installed to wedge 6 on the permanent plant of restraint equipment;
5, according to the job step trial run several times, wedge 6 is adjusted to suitable position.
Claims (1)
1. plug locking device, it is characterized in that: described plug locking device is by connector (1), snap ring (2), screw (3), bearing pin (4), guide wheel (5) and wedge (6) form, the front end of described connector (1) is by bearing pin (4) and mandrel movement limiting equipment connection, the rear portion of connector (1) is provided with the inclined-plane (1-1) corresponding with the head (7-1) of plug (7), described inclined-plane (1-1) is provided with the inner chamber (1-2) that can hold the plug head afterwards, at described inclined-plane (1-1) the step place with described inner chamber (1-2), be connected with snap ring (2) with screw (3), in the outside of described connector (1) guide wheel (5) that is used with wedge (6) is installed, described wedge (6) is fixed on the mandrel movement limiting equipment.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220315728 CN202638865U (en) | 2012-06-21 | 2012-06-21 | Core rod locking device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220315728 CN202638865U (en) | 2012-06-21 | 2012-06-21 | Core rod locking device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202638865U true CN202638865U (en) | 2013-01-02 |
Family
ID=47408043
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220315728 Expired - Lifetime CN202638865U (en) | 2012-06-21 | 2012-06-21 | Core rod locking device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202638865U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106269878A (en) * | 2016-10-17 | 2017-01-04 | 北京京诚之星科技开发有限公司 | A kind of push rod plug draw bail |
-
2012
- 2012-06-21 CN CN 201220315728 patent/CN202638865U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106269878A (en) * | 2016-10-17 | 2017-01-04 | 北京京诚之星科技开发有限公司 | A kind of push rod plug draw bail |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130102 |
|
| CX01 | Expiry of patent term |