CN202137191U - Retained mandrel support device - Google Patents
Retained mandrel support device Download PDFInfo
- Publication number
- CN202137191U CN202137191U CN201120220546U CN201120220546U CN202137191U CN 202137191 U CN202137191 U CN 202137191U CN 201120220546 U CN201120220546 U CN 201120220546U CN 201120220546 U CN201120220546 U CN 201120220546U CN 202137191 U CN202137191 U CN 202137191U
- Authority
- CN
- China
- Prior art keywords
- backing roll
- retained mandrel
- turning cylinder
- swing arm
- mandrel
- 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 - Fee Related
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Abstract
The utility model provides a retained mandrel support device, which can support the retained mandrel and prevent the mandrel from being deviated from the centre of a support roller, and simultaneously can fulfill the aim of regulating and controlling the elevation height of the retained mandrel support device. The retained mandrel support device comprises a worm wheel elevator which comprises a worm meshed with a worm wheel; the worm wheel is sleeved on a nut; the nut is sleeved on a screw rod; the retained mandrel support device is characterized in that: the body of a hydraulic oil cylinder is articulated with the screw rod; a piston rod of the oil cylinder is connected with one end of a swing arm; the middle position of the swing arm is sleeved on a first rotating shaft; a second rotating shaft is installed on the other end of the swing arm; the support roller is sleeved on the second rotating shaft; and a bearing is sleeved on the second rotating shaft at the combination position of the support roller and the second rotating shaft.
Description
Technical field
The utility model relates to the device of the inner retained mandrel of pipe mill in the seamless steel tube production chain, is specially the retained mandrel bracing or strutting arrangement.
Background technology
At present in seamless steel tube production chain; When rolled steel tube; The inner retained mandrel of pipe mill cooperates requiring lifting or reverting to desired location of rolling process, and retained mandrel must be supported by bracing or strutting arrangement in this process, and existing bracing or strutting arrangement is actually by three roller tight-holding type backing rolls and supports; This backing roll with the contact process of retained mandrel in, cause retained mandrel to depart from the backing roll center easily and run into roll and scratch.Because the seamless steel pipe of rolling different size need be equipped with the retained mandrel of different size, therefore require the adjustable height of backing roll to adjust and to control simultaneously, existing bracing or strutting arrangement lacks the function of this respect.
Summary of the invention
To existing three roller tight-holding type backing rolls exist with the retained mandrel contact process in cause retained mandrel to depart from the backing roll center easily; And the function that the adjustable height that lacks bracing or strutting arrangement can be adjusted and control; The utility model provides the retained mandrel bracing or strutting arrangement; Can play a supporting role to retained mandrel, and prevent that plug from departing from the backing roll center, the while can be realized the purpose that the adjustable height of retained mandrel bracing or strutting arrangement can be adjusted and control.
Its technical scheme is such, and it comprises the worm gear lift, and said lift comprises worm screw; Said worm engaging connects worm gear, and said worm gear set is loaded on nut, and said nut sleeve is loaded on screw mandrel; It is characterized in that: the cylinder body of hydraulic jack is articulated in screw mandrel, and the piston rod of said oil cylinder connects an end of swing arm, and the middle part of said swing arm is set in first turning cylinder; The other end of said swing arm is equipped with second turning cylinder; Backing roll is set in said second turning cylinder, and the binding site of the said backing roll and second turning cylinder is set with bearing on said second turning cylinder.
Its further characteristic also is: described backing roll is the copper roller, and material is ZCuAl10Fe3; The backing roll axial cross section is shaped as V-type.
The utility model adopts after the said structure, and hoist cylinder connects the turbine lift, during work; The turbine lift can be controlled the height that backing roll goes up and down through the initial position of adjustment hoist cylinder; Because bearing has been installed in backing roll inside, what backing roll and retained mandrel took place during the retained mandrel rollback is rolling friction, and backing roll has adopted the strong material of anti-wear performance; So backing roll itself reduces the wearing and tearing of retained mandrel greatly; The backing roll axial cross section is shaped as V-type, can support retained mandrel firmly and prevent that it from departing from the backing roll center, thereby avoid retained mandrel in back off procedure, possibly run into roll and make active section impaired; Be installed between the backing roll and second turning cylinder owing to bearing again; Second turning cylinder can not rotate when backing roll rotates, and the piston rod machine of oil cylinder drives swing arm, and drive second power transmission shaft is rotated in swing arm can make backing roll rotate free lifting simultaneously.
Description of drawings
The structural representation that Fig. 1 looks for the utility model master;
Fig. 2 is the left view of Fig. 1;
Fig. 3 is the enlarged drawing of the utility model roller-way cutaway view among Fig. 1;
Fig. 4 is the enlarged drawing of the structural relation figure of plug among Fig. 1, backing roll, first turning cylinder, second turning cylinder, oil cylinder.
The specific embodiment
See Fig. 1, Fig. 2, Fig. 3, Fig. 4, the utility model comprises the worm gear lift, and lift comprises worm screw 1; Worm screw 1 worm gear that is connected with a joggle, worm gear set is loaded on nut, and nut sleeve is loaded on screw mandrel 3 (worm gear and nut are covered among Fig. 2); The cylinder body of hydraulic jack 2 is articulated in screw mandrel 3, and the piston rod of oil cylinder 2 connects an end of swing arm 9, and the middle part of swing arm 9 is set in first turning cylinder 10; The other end of swing arm is set in second turning cylinder 4, and backing roll 5 is set in second turning cylinder 4, the binding site of the backing roll 5 and second turning cylinder 4; Being set with bearing 7,8 on second turning cylinder 4 is plug, base for supporting 6.
The turbine lift rotates through worm screw 1 adjustment screw mandrel 3; Thereby the initial position on horizontal line of adjustment hoist cylinder 2; The height that the mobile control backing roll 5 of piston rod goes up and down, backing roll 5 are shaped as V-type for its axial cross section of copper roller, and the material of copper roller is ZCuAl10Fe3; The binding site of the backing roll 5 and second turning cylinder 4 has been installed bearing 7; Rolling friction takes place when retained mandrel 8 contacts with backing roll 5, and second turning cylinder 4 can not rotate when backing roll 5 rotates, base for supporting 6 is fixed on the rolling mill base.
Claims (3)
1. retained mandrel bracing or strutting arrangement, it comprises the worm gear lift, said lift comprises worm screw; Said worm engaging connects worm gear, and said worm gear set is loaded on nut, and said nut sleeve is loaded on screw mandrel; It is characterized in that: the cylinder body of hydraulic jack is articulated in screw mandrel, and the piston rod of said oil cylinder connects an end of swing arm, and the middle part of said swing arm is set in first turning cylinder; The other end of said swing arm is equipped with second turning cylinder; Backing roll is set in said second turning cylinder, and the binding site of the said backing roll and second turning cylinder is set with bearing on said second turning cylinder.
2. according to the said retained mandrel bracing or strutting arrangement of claim 1, it is characterized in that: described backing roll is the copper roller.
3. according to the said retained mandrel bracing or strutting arrangement of claim 1, it is characterized in that: described backing roll axial cross section is shaped as V-type.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120220546U CN202137191U (en) | 2011-06-27 | 2011-06-27 | Retained mandrel support device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120220546U CN202137191U (en) | 2011-06-27 | 2011-06-27 | Retained mandrel support device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202137191U true CN202137191U (en) | 2012-02-08 |
Family
ID=45548270
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201120220546U Expired - Fee Related CN202137191U (en) | 2011-06-27 | 2011-06-27 | Retained mandrel support device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202137191U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104998907A (en) * | 2015-07-14 | 2015-10-28 | 聊城鑫鹏源金属制造有限公司 | Pipe mill limiting frame |
| CN107082222A (en) * | 2017-05-13 | 2017-08-22 | 蔡燕 | A kind of tubing transmits lifting mechanism |
| CN110756588A (en) * | 2019-10-15 | 2020-02-07 | 广东海亮铜业有限公司 | Core bar supporting mechanism and blank casting feeding equipment |
| CN112828054A (en) * | 2020-12-28 | 2021-05-25 | 太原重工股份有限公司 | Front support device of continuous rolling mill |
| CN114769320A (en) * | 2022-04-25 | 2022-07-22 | 靖江特殊钢有限公司 | Adjusting device for middle trunnion hydraulic cylinder |
-
2011
- 2011-06-27 CN CN201120220546U patent/CN202137191U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104998907A (en) * | 2015-07-14 | 2015-10-28 | 聊城鑫鹏源金属制造有限公司 | Pipe mill limiting frame |
| CN107082222A (en) * | 2017-05-13 | 2017-08-22 | 蔡燕 | A kind of tubing transmits lifting mechanism |
| CN110756588A (en) * | 2019-10-15 | 2020-02-07 | 广东海亮铜业有限公司 | Core bar supporting mechanism and blank casting feeding equipment |
| CN112828054A (en) * | 2020-12-28 | 2021-05-25 | 太原重工股份有限公司 | Front support device of continuous rolling mill |
| CN114769320A (en) * | 2022-04-25 | 2022-07-22 | 靖江特殊钢有限公司 | Adjusting device for middle trunnion hydraulic cylinder |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| PP01 | Preservation of patent right |
Effective date of registration: 20140922 Granted publication date: 20120208 |
|
| RINS | Preservation of patent right or utility model and its discharge | ||
| PD01 | Discharge of preservation of patent |
Date of cancellation: 20150322 Granted publication date: 20120208 |
|
| RINS | Preservation of patent right or utility model and its discharge | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120208 Termination date: 20150627 |
|
| EXPY | Termination of patent right or utility model |